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TABLE OF CONTENTS
Section 1 Foreword: Goals and Policies of Landis
Sanitation District
i
Exhibit 1 Sketches of Proposed Treatment Plant
Exhibit 2 Letters Requesting Inclusion in the Landis
Sanitation District Service Area
Exhibit 3 Garfield County Planning and Zoning Commission
Comments
Exhibit 4 Board of County Commissioners for Garfield County,
Colorado - Resolution of Approval for Spring Valley
Ranch P.U.D.
Exhibit 5 "Spring Valley Water Resources and Water Rights",
May, 1977 -Wright Water Engineers, Inc.
Exhibit 6 "Spring Valley Ranch Water Rights and Water Resources",
March, 1983 - Wright Water Engineers, Inc.
Chapters I Wastewater Utility System for Landis Sanitation
through VII District, Garfield County, Colorado - McLaughlin
Water Engineers
Appendix "A" Description of District
Appendix "B" Site Application for Sewage Treatment Plant
Appendix "C" Financing Overview - Prepared by Hanifen-Imhoff, Inc.
JAN 1 11S5
,3A6�FI
SECTION 1
FOREWORD: GOALS AND POLICIES OF LANDIS SANITATION DISTRICT
Lake Springs Ranch P.U.D. and the Spring Valley Ranch P.U.D. are proposing
the formation of the Landis Sanitation District. This should be in the
best interest of the current and future water users who draw on the
Spring Valley aquifer for their water supply. In a report by Wright Water
Engineers, Inc. dated May, 1977, they state that the Spring Valley aquifer
could "support a population of 20,000 people". This potential of the
aquifer did not take into account the additional capacity generated by
the recharge of the aquifer by land application, through the spray
irrigation of treated effluent, since the Spring Valley Ranch had not yet
begun the planning for their P.U.D. The latest of the water resource studies
which have been done on the Spring Valley aquifer recommend against exportation
of water from the topographic basin. This Water Resource Study, compiled
by Wright Water Engineers, Inc.. and dated March, 1983; states in support
that "Once man has diverted water from any Spring Valley water source, be it
by wells, springs or surface diversions, a part of the water will be evaporated
into the atmosphere and part of it will return.to the stream system, or
local aquifer. In Spring Valley, it is important how this 'unused' water
is returned to the hydrologic system. If the return water (e.g. waste -water
treatment effluent, or irrigation return flow) is not returned to the
Spring Valley area, then the depletion of the resource is equal to the
amount diverted. .If, on the other hand, the unconsumed water is returned
to the Spring Valley area, then the depletion to the Spring Valley water system
is only that water which is evapotranspired or consumptively used. Therefore,
1 it can be concluded that water exported from Spring Valley for development
IForeword - Page.2
purposes has a greater impact on the Spring Valley water supply than the
equivalent amount of water used in and returned to the Spring Valley
water system.". The existing Spring Valley Sanitation District results
rl in a 100% depletion of extracted ground water as a result of the
l location of the plant in the Cattle Creek drainage. The method of
treatment proposed by Landis Sanitation District could achieve as much
as a 65% recharge to the aquifer through the proposed land application
system of spray irrigation within the topographic basin of the aquifer.
The provision of sanitary treatment by Landis Sanitation District would
result in recharge of the aquifer from which all Spring Valley users
draw for their water supply. Therefore, the provision of sanitary
treatment service by the Landis Sanitation District would result in the
best environmental consideration for the conservation and protection of
a very valuable resource which we and many other users draw upon for our
water supply, namely the Spring Valley aquifer.
Cost effective service is not available through the existing Spring Valley
Sanitation District. This is evidenced by the higher tap fees, long trunk
lines and deep cuts, or lift stations necessary to connect to the existing
Spring Valley Sanitation District. This, in addition to the overriding
concern over 100% depletion of extracted ground water from the aquifer
(by Spring Valley Sanitation District) has clearly dictated the establishment
'J of the Landis Sanitation District. Therefore, with the intent of preserving
the aquifer and protecting our environment as well as providing cost
effective sewer service based on a policy of encouraging annexation of
} additional properties, we propose the formation of the Landis Sanitation
1 District.
Foreword - Page 3
rl It is the intent of the Landis Sanitation District to establish an
area wide treatment facility to accommodate all of the potential
development within the topographic basin of the Spring Valley aquifer.
In order to achieve this goal, the representatives of Lake Springs
Ranch and Spring Valley Ranch (the only two approved developments in
the proposed Landis Sanitation District Service Area) have asked as
many neighboring property owners as possible to indicate their interest
in the proposed district. The attached map (see pocket at end of Section I)
1 and letters requesting inclusion in the service area of the proposed
District (Exhibit "2") demonstrate the degree of support by adjacent
property owners.
The Garfield County Planning and Zoning Commission has recognized the
need for another entity to provide sanitary treatment services in the
Spring Valley area. In their approval of the Spring Valley Ranch Planned
Unit Development, they stated, "As to the `non-proliferation of special
districts' it has been shown by the Spring Valley Ranch developers that
the existing sewage services are physically unavailable in an economically
feasible manner and that the existing facilities are not consistant with
the appropriate management of the water resources in the area. Given
these parameters, it is logical to assume that a new sewage treatment
facility would be more appropriately located outside of the existing
sanitation district and that the 'non-proliferation' policy is -not an
issue in this project." (see attached Exhibit "3"). Since they found
that the Spring Valley Ranch P.U.D. is in "general conformity" to the
iGarfield County Comprehensive Plan, the formation of the Landis Sanitation
Foreword - Page 4
District is the next positive step in implementing their conclusion
of the need for another sanitary treatment facility.
The finding of "general compliance with the recommendations set forth
in the comprehensive plan for the unincorporated area of the County" was
confirmed by the Board of County Commissioners for Garfield County in
their resolution of approval of the Spring Valley Ranch P.U.D. (see attached
Exhibit "4").
It is the intent of the proposed Landis Sanitation District, in conformance
to the goals and policies of the Garfield County. Comprehensive Plan, that
L� the proposed District be formed as an area -wide treatment facility for the
Spring Valley area. To accomplish this goal, the proposed District has
formulated an annexation policy which encourages annexation to the District
by all properties within the Service Area. That policy is: That developments
;1 or properties in addition to Spring Valley Ranch are encouraged to join
' the District. In order to do so, they are required to provide trunklines
where necessary or share common trunkline costs on a pro rata basis, to
install to the satisfaction of and dedicate to the District all internal
collection lines, to pay equitable tap fees established by the District and
to pay to the District established monthly user fees. Costs associated
with the development of other properties within, the District cannot be levied
against them.
{ Foreword - Page 5
i
In conclusion, the formation of the Landis Sanitation District can
implement and enhance the following goals:.
l
1) Provide for orderly, environmentally sound development of an area
ri
which contains an abundance of the most important ingredient to
development water.
2) Provide the most effective conservation and utilization of the
l Spring Valley aquifer by recharge, rather than depleting it by
l discharge.outside the topographic basin.
3) Provide for area -wide development in compliance with the Garfield
County Comprehensive Plan.
4) Provide an alternative to the creation of small parcels utilizing
soil absorption systems which have the danger of contamination by
J
leaching directly into the aquifer.
l
5) Provide a safe alternative for the existing parcels which now
border the aquifer and utilize soil absorption systems.
In response to the concerns of the Spring Valley residents, the proponents
of the Landis Sanitation District commissioned the architectural firm of
Gibson and Reno to develop preliminary sketches of the proposed treatment
facilities. Those sketches (Exhibit "1") demonstrate the minimal visual
I impact of the plant on the views from neighboring properties and on the
valley itself. The final plant design will implement the guidelines of
these sketches to create a facility which will be compatible with the
i
j vegetation and environment of the valley.
i
i
EXHIBIT 'T'
�l
EXHIBIT "2"
REQUEST FOR DESIGNATION AS PART OF.1,11E SERVICE ARKA OF THE YIiOPOSEI)
"LANDIS SANI.•L• TION DISTR' ICT"
As a landowner in the Spring Valley arca, I.woul.d likemy property
to be .included in the designated service area of the Propo::ed "Landi::
Snnitation District".
I undr.rstand khat t•hir.. will not incur any expcnsc on my pati until
::uch time. ar, Y applied for annexation into the proposed district.
GP GAS AND APPLIANC s CO.
P.o:: S
_ Oenmood Spr;ngs,_Colo_8�pL_..._
(Name)
* {I'ra:mancnt Parcel Plumber)
Nate: Thin "Pcrtna»eat Parcel Number" is the. 12 [ligt.r numhcr (o,ntd on
your current t:ax
i'J.r:n::c recur❑ t:hi.:: si.t;ned letter. to Spring Vcta.le,y Holding, Ltd.
:4000 - 115.Rd.
Glenwood Springs, CO 81601
1.10 have.. encl.o::ed a ntautpcel, self—addressed envelope for youciconvc:nicncr..
A
1
REQUEST FOR DESIGNATION AS PART OF THE
SERVICE AREA OF '1'111; 1'RUPOSI U
"i..ANUIS SANI'L•ATION DISTRICT"
As a ]andowner in the SpringValley area, I.would 11.1(c my property
to be included in the designated service area oP the pt'opo:ced "L.andi::
Sanitation District".
I understand r.hat this will. not incur any expense on my parr. until
i
such time as I applied for annexation into theproposed district.
* (Permanent Parcel tiumber)
t
(Name)
RoAALb GERM14AIAJ
(Signacute)
* Note: 'this "Permanent Parcel Number" is the 12 diril' number found on
your current tax hill.
Please return this signed letter to Spring Valley Holding, Ltd.
1 :4000 - 115 Rd.
Glenwood Springs, CO 81601
I•ie have enc).o.ccl a stamped, self-addressed envelope for your convenience.
I •
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1
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t
,t
REQUEST FOR DESIGNATION AS PART OFiTHE SERVICE AREA OF THE PROPOSED
"LANDIS SANITATION DISTRICT"
As a landowner in the Spring Valley area, I.would like my property
J.
to be included in the designated service area of* the proposed "Landis
Sanitation District".
I understand that this will not incur any expense on my part until
such time as I applied for annexation into the proposed district.
Patty L. Mrederick
(Name) --
2187-2o3-oo-oy9 ..
* (Permanent Parcel Number)
y
(S nater
* Not:r.: This "Permanent Parcel Number" is the 12 digit number found on
your Current tax bill.
Please return this signed letter to the Foster Petroleum Corporation
attorney, Mr. Bob Emerson
86 South Third Street
Carbondale, Colorado 81623.
We have enclosed a stamped, self-addressed envelope for your convenience.
REQUIiST FOR DESIGNATION AS PART OF THE SERVICE AREA OF THE PROPOSED
"LANDIS SANITATION DISTRICT""
As a landowner in the Spring Valley area, I.would like my property
to be.. included in the designated service area of'the propoved "Landi::
Sanitation District". .
I understand that thiswill not incur any cxpcnsc oa illy part until
such time as I applied for annexation into the Proposed district.
COLORADO MOUNTAIN COLLEGE -
(Name)
2187-343-00-083
* (Permancnt Parcel Number)
(S1„n cut'c
* Note: Thi.:: "Permanent Parcel Number" is the 12 digi.'t number found on
your current tax bill.
Pl.r_ane return this: signed letter to Spring Valley Holding, Ltd.
:4000 - 11$ Rd.
Glenwood Springs, CO 81601
We have enclosed a stamped, self-addressed envelope for your convc.nicnec.
h
1
1
1 1
REQUEST FOR DESIGNATION AS PART OF THE SERVICE AREA OP THE PROPOSED
"LANDIS SANITATION DISTRICT"
As a l.andowntr in the Spring Valley area, I.would like my property
1
cc be., included in the designated service area or, the pt•opos:cd "Landi::
Sanitation District". .
I understand that this will not incur any expense on my part until
such time W,- I applied for annexation into the Inroposed district.
J. H. AUSTIN'
8726 115 ROAD
GLENWOOD SPRINGS
COLORADO 81 80 1
(Name) ------- ---
* (Permanent Parcel. Number)
(S lt'p
Note: This "Permanent Parcel Number" is the 12 digit number found on
your current tax bill.
Pleane return this; signed letter to Spring Valley Holding, Ltd.
!4000 - 115 Rd.
Glenwood Springs, CO 51601
Ne have encl.oed a stamped, self-addressed envelope for your convenience.
I
REQUEST FOR DE•SICNATION AS PART OF:T11E SERVICE AREA OF THE PROPOSED
"LANDIS SANITATION DISTRICT"
As a landowner in the Spring Valley area, I would like my property
to be included in the designated service area oP the proposed
Sanitation District"
I understand that this will not incur any expense on my pati' until
such time as I applied for annexation into the proposed district.
2187-292=00-0078
* (Permanent Parcel Number)
Vivian Kuikman Allaire
(Name)
(Signature)
* Note: This "Permanent Parcel Number" is the 12 digit number found on
your currant tax bill.
Please return this signed letter to the Foster Petroleum Corporation
attorney, Mr. Bob Emerson
86 South Third Street
Carbondale, Colorado 81623.
We have enclosed a stamped, self—addressed envelope for your convenience.
:I
I
REQUEST FOR DESIGNATION AS PART OF THE SERVICE AREA or
THE PROPOSED
"L.ANDIS SANITATION DISTRICT"'
As a landowner in the Spring Valley area, I.would lilce my property
.' , p c ,
to be included in Che designated service area of the proposed "Landis
Sanitation District".
T understand that this will not incur any expense on my part until
such time as I applied for annexation into the proposed district.
John G. Powers
(Name)
2393-033-00-033 ToFrN la. it) VV5zS
2393-034-00-002
2393-091-00-004
* (Permanent Pat'cel Number)
(Signature)
* Note: This "Permanent Parcel Number" is the 12 digit number found on.
your current tax bill
Please return this signed letter to Spring Valley Holding, Ltd.
:4000 — 115 Rd.
'I
Glenwood Springs, CO 81601
We have enclosed a stamped, self—addressed envelope for your convenience.
i
REQUEST FOR DESIGNATION AS PART OF THE SERVICE AREA OF THE PROPOSED
"LANDIS SANITATION DISTRICT"
As a landowner in the Spring Valley area, I would like my property
to be included in the designated service area of the proposed "Landis
l Sanitation District".
,7
I understand that this will not incur any expense on my part until
such time as I applied for annexation into the proposed district.
(Name)
l
.,,2187 17.g Cts
* (Permanent Parcel Number)
1.
i (Signature)
* Note: This "Permanent Parcel Number" is the 12 digit number found on
your current tax bill.
1
Please return this signed letter to: Foster Petroleum Corporation
242 Main Street
Carbondale, Colorado 81623
We have enclosed a stamped, self-addressed envelope for your convenience
Your prompt response will be very much appreciated.
i
REQUEST FOR DESIGNATION AS PART OF THE SERVICE AREA OF THE PROPOSED
l' "LANDIS SANITATION DISTRICT"
As a landowner in the Spring Valley area, I would like my property
to be included in the designated service area of the proposed "Landis
Sanitation District".
lI understand that this will not incur any expense on my part until
J such time as I applied for annexation into the proposed district.
Nam)
a ) R NP R 00 OF
Name)
21 8-7-:.83-00_ 39
* (Permanent Parcel Number)
6LVv�j
(Signature)
* Note: This "Permanent Parcel Number" is the 12 digit number found on
your current tax bill.
Please return this signed letter to the Foster Petroleum Corporation
j attorney, Mr. Bob Emerson
86 South Third Street
Carbondale, Colorado 81623.
We have enclosed a stamped self-addressed envelope for
, p your convenience.
I.
� I
REQUEST FOR DESIGNATION AS PART OF TH6 SERVICE ARP.A OF '1'Illi PROPOSED
"I..ANDIS SANITATION DISTRICT"
As a landowner in the Spring val.ley area, I.wou.ld .1i.lce my property
i
Co be included in the designated service area oP the proposed "l.andia
Sanitation District.'".
I understand that this will. not incur any expense on my part until
such time an I applied for annexation into the proposed dit;tvi.cr.
fF J
* (permanent Parcel Number)—.--
--- --------
me)
gnat'ure) -
* Note: chin "Cet'manent Parcel Number" is die 12 digit number' found on
-
your. current tax bill.
Please return this signed letter to Spring Valley Holding, Ltd.
;11-000 - 115 Rd.
Glenwood Springs, CO 81601
We have encl.o,cdla stamped, self-addressed envel.opc for your convenience.
REQUEST FOR DESIGNATION AS PART OF THE SERVICE AREA OF THE PROPOSED
"LANDIS SANITATION DISTRICT"
As a landowner in the Spring Valley area, I would like my property
to be included in the designated service area of the proposed "Landis
Sanitation District"
lI understand that this will not incur any expense.on my part until
'J such time as I applied for annexation into the proposed district.
2185-244-oo-o62
2392-344-o1-005 .
* (Permanent Parcel Number)
Rick and Ann Broadhurst
(Name)
(Signature)
* Note: This "Permanent Parcel Number" is the 12 digit number found on
your current tax bill.
Please return this signed letter to the Foster Petroleum Corporation
attorney, Mr. Bob Emerson
86 South Third Street
Carbondale, Colorado 81623.
We have enclosed a stamped, self-addressed envelope for your convenience.
REQUEST FOR DESIGNATION AS PART OF THE SERVICE AREA OF TUE PROPOSED
"1.ANDIS SANITATION DISTRICT''
As a landowner in the Spring Valley area, I.would like my property
I
to be included in the designated service area of the proposed "Landi::
Sanitation District".
I understand chat this will not incur any expense on my part: until
such time as I applied for annexation into the proposed district.
218?_ -293=00=O97--._ .---
* (Permanent Parcel Number)
Samuel W. & Beverley L. Bryan
(Name)--�—�----- ---
i
(Signature)
* Note: This "Permanent Parcel Number" is the. 12 digit number found on
yourcurrent tax bill.
Please return this signed letter to Spring Valley Holding, Ltd.
Am - 115 Rd.
Glenwood Springs, CO 81601
We have enclosed a stamped, self-addressed envelope for your convenience.
REQUEST.FOR DESIGNATION AS PART OF THE SERVICE AREA OF THE PROPOSED
"LANDIS SANITATION DISTRICT"
As a landowner in the Spring Valley area, I would like my property
to be included in the designated service area of the proposed "Landis
Sanitation District".
I understand that this will not incur any expense on my part until
such time as I.applied for annexation into the proposed district.
fI87 X291 ao o36
* (Permanent Parcel Number)
1gf I NI
t
(Name)
(Signature)
* Note: This "Permanent Parcel Number" is the 12 digit number found on
your current tax bill.
Please return this signed letter to the Foster Petroleum Corporation
attorney, Mr. Bob Emerson
86 South Third Street
Carbondale, Colorado 81623.
We have enclosed a stamped, self-addressed envelope for your convenience.
REQUEST FOR DESIGNATION AS PART OF THE SERVICE AREA OF THE PROPOSED
"L.ANDIS SANITATION DISTRICT"
As a landowner in the Spring Valley area, I would like my property
to be included in the designated service area of the proposed "Landis
Sanitation District".
I understand that this will not incur any expense on my part until
such time as I applied for annexation into the proposed district.
;L 11 -7 7o / o r)n
* (Permanent Parcel. Number)
1)..�,/�.j,�
(Name)
v C�
.0
(Signature)
* Note: This "Permanent Parcel Number" is the 12 digit number found on
your current tax bill.
Please return this signed letter to the Poster Petroleum Corporation
attorney, Mr. Bob Emerson
86 South Third Street
Carbondale, Colorado 81623.
We have enclosed a stamped, self-addressed envelope for your convenience.
i
1
I'
REQUEST.FOR DESIGNATION AS PART OF THE SERVICE AREA OF THE PROPOSED
"LANDIS SANITATION DISTRICT"
As a landowner in the Spring Valley area, I would like my property
to be included in the designated service area of the proposed "Landis
Sanitation District".
I understand that this will not incur any expense on my part until
such time as I applied for annexation into the proposed district.
,2J97
,Z/87 z9 Z 00 OL/
* (Permanent Parcel Number)
1;1 , l9E' 1 E CJ S i I S
(Name)
tc,L �Lti2L�.�
(Signature)
* Note: This "Permanent Parcel Number" is the 12 digit number found on
your current tax bill.
Please return this signed letter to the Foster Petroleum Corporation
attorney, Mr. Bob Emerson
86 South Third Street
Carbondale, Colorado 81623.
We have enclosed a stamped, self—addressed envelope for your convenience.
REQUEST FOR DESIGNATION AS PART OF THE SERVICE AREA OF THE PROPOSED
"LANDIS SANITATION DISTRICT"
As a landowner in the Spring Valley area, I would like my property
to be included in the designated service area of the proposed "Landis
Sanitation District".
I understand that this will not incur any expense on my part until
such time as I applied for annexation into the proposed 4ketrict.
!O
2185-244-oo-o81
2185-162-02-024
* (Permanent Parcel Number)
_)-ri V -%-C>
.
* Note: This "Permanent Parcel Number" is the 12 digit—number found on
your current tax bill.
Please return this signed letter to: Foster Petroleum Corporation
242 Main Street
Carbondale, Colorado 81623
We have enclosed a stamped, self-addressed envelope for your convenience.
Your prompt response will be very much appreciated.
, AA
REQUEST FOR DESIGNATION AS PART OF THE SERVICE AREA OF THE PROPOSED"
"LANDIS SANITATION DISTRICT"
As a landowner in the Spring Valley area, I would like my property
to be included in the designated service area of the proposed "Landis
Sanitation District".
I understand that this will not incur any expense on my part until
such time as I applied for annexation into the proposed district.
�/6e% 3 �w do 090
J 1?7 311 oc c *7
* __9_J9t�2 9 / /V ' cl 747
(Permanent Parcel Number)
Z7 /
(Name)
(Signature)
* Note: This "Permanent Parcel Number" is the 12 digit number found on
your current tax bill.
Please return this signed letter to the Foster Petroleum Corporation
attorney, Mr. Bob Emerson
.86 South Third Street
Carbondale, Colorado 81623.
We have enclosed a stamped, self-addressed envelope for your convenience.
REQUEST FOR DESIGNATION AS PART OF THE SERVICE AREA OF TUE PROPOSED
"LANDIS SANITATION DISTRICT"
As a landowner in the Spring Valley area, I would like my property
to be included in the designated service area of the proposed "Landis
Sanitation District".
I understand that this will not incur any expense on my part until
such time as I applied for annexation into the proposed district.
(Name)
29
-2/F 7-- : 0-0 ®y�
* (Permanent' Parcel Numb^-�
Mys
* Note: This "Permanent Parcel Number" is the 12 digit number found on
your current tax bil.l..
Please return this signed letter to the Poster Petroleum Corporation
attorney, Mr. Bob Emerson
86 South Third Street
Carbondale, Colorado 81623.
We have enclosed a stamped, self-addressed envelope for your convenience.
l REQUEST FOR DESIGNATION AS PART OF THE SERVICE AREA OF THE PROPOSED
11 ".LANDIS SANITATION DISTRICT"
As a landowner in the Spring Valley area, I would like my property
to be included in the designated service area of the proposed "Landis
Sanitation District".
I understand that this will not incur any expense on my part until
such time as I applied for annexation into the proposed district.
�c�c1C L. , �abors
LToy c e 14. _ lel a bons
(Name)
8Ky59s �'G 0690
* (Permanent Parcel Number)
(SigXaturky
* Note: This "Permanent Parcel Number" is the 12 digit number found on
your current tax bill.
,Please return this signed letter to: Foster Petroleum Corporation
242 Main Street
Carbondale, Colorado 81623
We have enclosed a stamped, self—addressed envelope for your convenience.
Your prompt response will be very much appreciated.
REQUEST FOR DESIGNATION AS PART OF THE SERVICE AREA OF THE PROPOSED
"LANDIS SANITATION DISTRICT"
As a landowner in the Spring Valley area, I would like my property
to be included in the designated service area of the proposed "Landis
Sanitation District"
I understand that this will not incur any expense on my part until
such time as I applied for annexation into the proposed district.
BA oy_Y'7 RG cn.—/ 6
* (Permanent Parcel Number)
(Name)
C
(Sign ure)
* Note: This "Permanent Parcel Number" is the 12 digit number found on
your current tax bill.
Please return this signed letter to: Foster Petroleum Corporation
242 Main Street
Carbondale, Colorado 81623
We have enclosed a stamped, self-addressed envelope for your convenience.
Your prompt response will be very much appreciated.
REgUEST FOR DESIGNATION AS PART OF THE SERVICE, ARIBA OF THE PROPOSED
"L.ANDIS SANITATION DISTRICT''
As a landowner in the Spring Valley area, I.would like my property
to be included in the designated service area of' the propo'.0 "Landis
r, Sanitation District"
-.T undoescand that this will not incur any expense on my part uutll
ri- - such time ns..I applied for annexation into the proposed district.
Kathleen McVey
ii (Name) ----- --
,J
21U.::2 _00-038
,..� *..(Permanent Parcel Number)
('SYgna Curc)
Note: This "Permanent Parcel Number" is the 12 digit number found on
your current tax bill.
l
` Please return this signed letter to Spring Valley Bolding, Ltd.
:4000 - 115 Rd.
` Glenwood Springs, CO 81601
id r_. have. Cnei.e:Cd a Stamped, self-addressed envelope for your convenience.
REQUEST FOR DESIGNATION AS PART OF THE SERVICE AREA OF THE PROPOSED
"LANDIS SANITATION DISTRICT"
As a landowner in the Spring Valley area, I would like my property
to be included in the designated service area of the proposed "Landis
Sanitation District".
I understand that this will not incur any expense on my part until
such time as I applied for annexation into the proposed district.
2157'522 0o og4
* (Permanent Parcel Number)
CUa TI 5 �%r7
(Name)
(icenature)
* Note: This "Permanent Parcel Number" is the 12 digit number found on
your current tax bill.
Please return this signed letter to the Foster Petroleum Corporation
attorney, Mr. Bob Emerson
86 South Third Street
Carbondale, Colorado 81623.
We have enclosed a stamped, self-addressed envelope for your convenience.
REQUEST FOR DESIGNATION AS PART OF THE.SERVICE AREA OF THE PROPOSED
"LANDIS SANITATION DISTRICT"
As a landowner in the Spring Valley area, I would like my property
to be included in the designated service area of the proposed "Landis
Sanitation District".
I understand that this will not incur any expense on my part until
such time as I applied for annexation into the proposed district.
c—
�G'Orr�<.J
(Name)
* (Permanent Parcel Number)
(Si'gnature)'
Note: This Permanent Parcel N
her is the 12 digit number found on
your current tax bill.
Please return this signed letter to the Foster Petroleum Corporation
attorney, Mr. Bob Emerson
86 South Third Street
Carbondale, Colorado 81623.
We have enclosed a stamped, self—addressed envelope for your convenience.
REQUEST FOR DESIGNATION AS PART OF THE SERVICEAREA OF THE PROPOSED
"L.ANDIS SANITATION DISTRICT"
As a landowner in the Spring Valley area, I would like my property
to be included in the designated service area ok the proposed "Landis
Sanitation District".
I understand that this will not incur any expense on my part until
such time as I applied for nnnexation into the proposed district.
_ 4187= 491— e)o- 0#,3
* (Permanent Parcel Number)
AAER r
(Name)
(Signature)
* Noce: This "Permanent .Parcel Number" is the 12 digit number found on
Your current tax bill
Please return this signed letter to the Foster Petroleum Corporation
attorney, Mr. Bob Emerson
OG South 11iird Street
Carbondale, Colorado 81623.
We have enclosed a stamped, self-addressed envelope for your convenience.
1
i1
REQUEST FOR DESIGNATION AS PART OF THE, SERVICE AREA 0P TIIK PROPOSED
"L•ANDIS SANITATION DISTRICT"
A: a ).andowncr in the Spring Valley arca, I.woul.d li.lce my property
cc be included in the designated service area oP Ole proposed "L.andi::
Sanitation District".
I understand chat this will not incur any expense on my pati until
such time as I applied for annexatlon into the proposed district.
* (Permancnt Parcel Number)
(Name)
(Signacut'c) 7
Ncrte: Thin "Permanent Parcel Number" is the 12 digi l: number found on
Your current tax bill.
Please return this signed letter to Spring Valley Holding, Ltd.
14000 - 115 Rd.
Glenwood Springs, CO 51601
i
Ile have enclosed a stamped, self-addressed envclope for, your convenienec.
REQUEST FOR DESIGNATION AS PART OF THE SERVICE AREA OF THE PROPOSED
".LANDIS SANITATION DISTRICT"
As a landowner in the Spring Valley area, I would like my property
'1 to be included in the designated service area of the proposed "Landis
Sanitation District".
I understand that this will not incur any expense on my part until
such time as I applied for annexation into the proposed district.
(Name)
21Rn-3-4z-bo-0-1q
* (Permanent Parcel Number)
� �- �
(Signature)
* Note: This "Permanent Parcel Number" is the 12 digit number found on
your current tax bill.
Please return this signed letter to: Foster Petroleum Corporation
242 Main Street
Carbondale, Colorado 81623
We have enclosed a stamped, self-addressed envelope for your convenience.
Your prompt response will be very much appreciated.
i
REQUEST FOR DE'SIGNAT'ION AS PART OF THE SL•'RVICI? AREA OF Tlif?. PROPoSI:O
"L.ANDIS SANITATION DISTRICT"
As a landowner in the Spring Valley arca, I.would like my property
CO be included in the designated service area of the propo::ed "Landis
Sanitation District".
I understand that this wi1J. not incur any expense on my part until
such time as I applJ.ed for annexation into the proposed dJ.Stl:jct.
2187-291-00-041
* '(Permanent Parcel Number)
Wilson M. & Gail Williams
(Signature) ---- ---
A" None: ThIs "Permanent Parcel Number" is t:he 12 digJ.t number found on
your current tax bill.
1'1'r=''`c 'eturn t1lil, signed letter to Spring Valley holding, Ltd.
:11000 - 115 Rd.
Glenwood Springs, CO 81601
h770 12a l?ag-T S?Ee t% BcgG�
1•Ir_ hnve enclosed a stamped, self-addressed envelope for your convenience.
EXHIBIT "3"
PROJECT NAME:
REQUEST
OWNER:
PLANNIM:
ENGINEERS:
LOCATION•
SITE DATA:
WATER:
SEWER:
ACCESS:
EXISTING Z014ING:
PROPOSED ZONING:
ADJACENT ZONING: .
PROJECT INFORMATION AND STAFF CO14MEN'TS
Spring Valley Ranch PUD
Rezoning to Planned Unit -
Development (PUD) and Sketch Plan
from Agricultural/Residential/Rural
Density ,(A/R/RD)
Spring Valley Holding, Ltd.
Sternberg, Alley & Kreger, Inc.
McLaughlin Water Engineers
Wright Water Engineers, Inc.
Lincoln DeVore
Centennial Engineering, Inc.
W 1/2 SW 1/4 and SW 1/4 NW 1/4
Section 14, all of Section 15,
except the NE 1/4, NE 1/4 Section
16; all of Section 20 except the SW
1/4 SW 1/4 and portions of S 1/2 SE
1/4 SW 1/4; Section 21, Section 22;
W 1/2 Section 23; W 1/2 Section 26;
Section 27; Section 28; E 1/2 and
portion W 1/2 Section 29; NE 1/4 NE
1/4 Section 32; majority of the N
1/2 Section 33; all of the NW 1/4
Section 34 except NE 1/4 Nil 1/4;
more practically described as a
parcel located approximately 4
miles southeast of Glenwood Springs
on County Road 115.
A parcel 5,830 acres in size to be
split into 2,750 single family and
multi -family dwelling units, with a
300 room hotel/resort, golf course
and equestrian area.
Central water
Central sewer with the exception of
200 lots with individual engineered
septic c; _c^s.
Via County Rd. 114 & 115
A/R/RD (Agricultural/Residen-
tial/Rural Density)
PUD (Planned Unit Development)
North: 0/S, A/R/RD
South: PUD, A/R/RD
East: A/R/RD
West: 0/S, A/R/RD
I i
RELATIONSRIP TO TUE COIIPREN_ENSIVE-PLAN
In general, the Spring Valley Ranch PUD meets.the criteria and
policies established in the Comprehensive Plan. The following are
relevant Plan policies:
r 1. 'Garfield County shall encourage the provision of housing
stock which is affordable by at least 50% of the County's
residents.' (p9.10, #9)
-� 2. 'The County shall encourage agricultural land to remain -
in agricultural use'. (pg.16, #3)
3. 'The County shall maintain the integrity and individuality
of the existing communities by encouraging.the.establish-
ment of open space greenbelt buffer area between the
existing municipalities.' (p9.16, #9)
9. "The County shall encourage new development to dedicate
environmentally hazardous or sensitive areas as permanent
7 open space.' (p9.16, 15.)
5. 'In new development, public access to public land and
lands dedicated to the County f'or public Use shall be
provided and perpetuated." (pg.16, 17)
�i. 6. 'Utilize cluster development and Planned Unit Develop-
ment in agricyultural areas.' (pg.17, 13) -
7. 'Encourage non-agricultural development in agricultural
�. areas to locate on non-productive farm land.' (p9.1.8, 16)
8. "The County shall require any development proposed, which
-
accesses from a poor or inadequate road to improve that
road to standards acceptable for the proposed type and
of .•.r_rl,_, ncnorated by the development and other
I�
existingusesin the area.'. (pg.22, 93)
-� 9. 'The County shall discourage the proliferation of special
service districts.' (pg.26, 96)
II 10. 'Special districts may be permitted, but only where pro-
posed services are not otherwise available. The boundaries
of the proposed special districtshall be consistent with
the ability to provide services by the proposed district
and by the adjoining alternative sources.' ($9.261 #7) _
11. 'The County shall consider the topogc aphy of the region in
service line extension feasibility. Areas where service
line extension require minimal additional costs are more
desirable for development than those areas requiring major
additions to the service system (i.e., Pumps, lift
- stations).' (p9.27, #11)
12. "The County shall discourage and reserve the right
to disapprove development on lands having excessive
slope (252 and over), severe geologic hazards, and/or
lands within a 100 year floodplain or in flood prone
areas to protect the health, safety and welfare of
County residents." (pg.30, 11)
13. 'The County shall guide new development to occur on
lands having moderate, minor or no environmental
constraints. In areas with environmental problems,
the County shall require development to perform to
a standard which mitigates or minimizes the problem."
(P9.30, $2)
14. "The County shall require a site-specific review and
evaluation of all geologic and other environmental
constraints to development to be submitted to the
Planning Department by all proposed subdivisions, PUD's,
or special uses, where deemed necessary. Such evalu-
ations shall be conducted by a professional practioner
with expertise in the subject matter ......' (pg.30, $3)
1.5. "The County shall submit all development proposals to
appropriate community service agencies which nal poten-
tially provide service to the residents or workers in
that development for review and comment.". (pg.33, 03)
16. "New development must ensure compatibility with adjacent
agricultural operations and site design must be used
which minimized encroachment on agricultural land.
(pg.67)
17. "A Rural Serviceable Area may have a density no greater
than one dwelling unit per two acres, or a density which
is compatible with the existing subdivision." (pg.61)
18. "The County shall require all new development locating
within a Rural Serviceable Area to connect to the exist-
ing subdivisions central water system whenever feabible.
When this is not possible, the County shall require the
new development to construct its own central water
system." (pg.61)
19. 'The County shall r.eauire all new development to be
served by adequately sized and constructed sewage dis-
posal systems. Developments which are within a Rural
Serviceable Area having a central sewage system shall
utilize this system whenever feasible.' (pg.62)
20. "The County shall require all new development within
Rural Serviceable Areas to maintain the existing level
of adequate and dependable community services (which -
include, but are not limited to schools, health care,
and fire and police protection) which will be affected
by the development. New development in areas where
these services are currently inadequate shall not create
an additional 'burden on these systems, shall contribute
to their improvement and ensure adequate and acceptable
levels of service are maintained." (pg.62)
21. Non-agricultural areas and non-productive cropland
found within districts C, D, E, shall be considered
beat able to absorb growth. (pgs. 70, 711 72)
22. "The County shall consider any areas of Districts C, D,
E and F which are adjacent to Subdivisions/Rural Scrvi-
II. DESCRIPTION OF THE PROPOSAL
A. Site Description: The property involved ranges from 7000 feet to
over 920U—feet in elevation. Vegetation includes open irrigated
croplands, scrub oak, pine and aspen trees and open mountain
meadows. The lower valley floor rises upward to the east about
600 feet in elevation to a fairly wide bench. From the bench
eastward, the change in.elevation is very significant to the
property lines, with most slopes being over 208 and many over
408.
- B. Praj.ect Description: It is proposed to develop the 5,830 acre
site into recreation/resort/housing complex with 2,750 dwelling
units, a 300 unit resort/hotel, neighborhood commercial, 36 hole
golf courreo equestrian area with large areas of open space. The
2,750 dwelling units will be located on 915 acres, giving a net
/.. density of 3 dwellings per acre. Overall, the gross density of
)' the project will be one dwelling per 2.1 acres. Of the 2,750
dwellings, 1,100 of the units are proposed to be affordable
housing ranging in Price from $55,000 to $65,000 per unit in 1902
dollars. The remainder of the housing will be relatively
expensive, but comparable in price to many lots and dwelling
units in the area. There are 200 estate lots that are projected
to cost $07,500 per lot, which is comparable to the cost of lots
in some of the resort areas.
The proposed 36 hole golf course is projected to have a
resort/hotel complex associated with it that would have 300 rooms
and small conference facilities. There may also be Swimming and
tennis facilities included in the resort. facility.
The equestrian area is proposed to have single family lots
surrounding a facility that can board, train and breed horses.
Other associated facilities such as indoor/outdoor arenas,
stables, fenced corrals and polo fields may be developed. It is
proposed that there will be a trail system connecting to the
White River. National forest lands.
A neighborhood commercial area of sixacres is proposed to meet
ri the convenience retail, professional office and personal service
i needs of the residents of the area. It is proposed to be 6 acres
in size, with a maximum of 150,000 square feet of floor area.
Sites for public schools, policeand fire substations and library
are being proposed, but have no definite locations at this point
in time. -
Common open space accounts for approximately 2,900 acres of the
project, with an additional 1,200 acres of restricted open
space. Combined with the 500 acres for the golf course, a total
of 4,600acres, or 798 of the development area will be passive. or
active open space area.
It is proposed that a central water system be developed that will .
be fed by various springs and wells on the property. it is
estimated that the water needs of thedevelopment will be 1,371
acre feet per year, but only 454 acre feet (338) will be consumed
and not returned to the acquifer during a normal water year. The -
water system will be owned and maintained by Spring Valley Ranch.
With the exception of the 200 estate lots in the upper area of
the project, it is proposed that a sanitation district be formed
to provide sewage treatment facilities for the Spring Valley
Ranch, Lake Springs Ranch PUD and other properties in the area.
Access to the development is proposed to be primarily from County
Road 114 (Colorado Mountain College road). Project engineers
have analyzed thephysical features of the road in order to
determine the service capacities of the road. As a result of the
analysis, the developers are projecting a phased improvement of
the roadway to a four lane roadway at ultimate build out of the
project.
Overall, it is proposed that the development be phased over a 15
year period starting in 1986. The phasing schedule recognized
that market factors may change and that portions originally
projected to occur in a certain year may need to be delayed or
increased based on market analysis.
III.MAJOR CONCERNS AND ISSUES
A. Comorehensive Plan:
In general, the proposed PUD conforms to the policies and
guidelines of the Comprehensive Plan. The Plan was developed
"to provide a framework for growth and land use. decision making."
(pg. ix) "The Garfield County Comprehensive Plan is, in essence,
a guidebook for growth and new development. It presents the
issues and problems which need to be addressed by new
development. It provides guidelines for the review and evaluation
of new growth." (pg.x, para. 4) "It generates a forum'in which
various entities can work together, rather than in opposition, to
resolve the problems and issues faced by Garfield County."
(pg.%, para. 5) The Spring Valley Ranch PUD application provides
a great deal of information on a more site specific evaluation of
the development potential of the property, than possible from the
Comprehensive Plan Management Districts map. The Management
Districts Map is intended primarily to be a guide to identifying
potential environmental constraints for more site specific study.
It is not a land use or zoning map and is intended for use only
in conjunction with this document. The purpose of the Management
Districts Map is solely to illustrate the areas includedunder
each of the districts.' (pg.38, para. 1)
As a result of analyzing the more site specific geologic in-
formation provided in the Spring Valley Ranch application, it
can be shown that some of the management district designations
encompass relatively large areas with no environmental con-
straints or minor constraints that have moderate and severe
constraints. The Spring Valley PUD concept was developed based
upon the more site specific information to locate the buildable
areas.
Overall, the Spring Valley Ranch PUD proposes a density of one
(1) dwelling unit per 2.1 acres. This density is consistent with
the guidelines for density. in a District B management district
and the underlying zoning. The District C, D, E and P density
guideline is one (1) dwelling unit per five (5) acres. As noted
previously, the Management District Map is "not a land use or
zoning map." Given the intentions of the Spring Valley Ranch
PUD developers to provide the necessary technical and community
services that are consistent with. the District D policies and
guidelines, it is reasonable to review the entire development
in light of the District D guidelines.
As to the "non-proliferation of special districts', it has
been shown by the Spring Valley Ranch developers that the
existing sewage services are physically unavailable in an
economically feasible manner and that the existing facilities
are not consistent with the appropriate management of the
water resource in the area. Given these parameters, it is
logical to assume that a new sewage treatment facility would
1 be more appropriately located outside of the existing sani-
tation district and that the "non-proliferation" policy is
not an issue in this project. Whether or not a special
district is appropriate would be subject to .future review
and approval of a service plan as required by state statute.
Overall, a finding. of general conformity with the Comprehensive
Plan can be made.
B. Zoning:
The present zoning of the Spring Valley Ranch Pup is
Agricultural/Residential/Rural Density (A/R/RD). This zoning
allows up to one dwelling unit per two acres. This would allow
2,915 dwellings on the 5,830 acre parcel, if all of the land were
cut up into two acre parcels. To .allow for the clustering of
housing units, the applicants have applied for a Planned Unit
Development (PUD) rezoning. The PUD regulations allow for up to
four (4) duelling units per acre in certain areas. To approve a
.. - PUD rezoning request, the County must make a finding that the
proposed rezoning is in "general conformity" with the
Comprehensive Plan. The previous discussion of the Comprehensive
Plan notes that a finding of general conformity with the
-Comprehensive Plan can be made.
Spring Valley Ranch has proposed a PUD zoning text. The following are
comments regarding the proposed text:
1. General comment: Wording should be added to the beginning of
the text that states: The Garfield County Zoning Regulations of
1979, as amended and the Garfield County Subdivision Regulations
of 1978, as amended, will take precedence over the permitted
uses, requirements of procedures that are not clearly defined in
the following Zone district regulations for the Spring Valley
Ranch PUD.
2. Definitions:
a. Dwelling, Caretaker: The length of stay of a guest
should be defined, it is suggested that 30 days be the
limit.
3. District: A - Rural Density Residential: Estate Lots
a. Recreational facilities and parks need to be defined,
i.e., private, non-commercial.
b. "Interval ownership" should not be allowed in this area,
this can be done through covenant.
c. Minimum off-street parking requirements should be
revised to require more than one space for a caretaker
dwelling unit.
District: B - Low Density Residential: Golf Course
a. Define the type of recreational facilities.
5. District: C - Low Density Residential: Manufactured
Housing Subdivision or Rental Park.
a. 'Cluster dwellings" should be deleted from both uses
permitted sections.
b. Define the type of recreational facilities.
c. The minimum separation between dwellings should be 12
fent.
7. District: C - Medium Density Residential
a. Define the type of recreational facilities.
b.. Define how "density transfer" will occur.
c. Off-street parking standards should be revised to
reflect the need for off-street parking requirements
for all uses.
Q. District: F - Neighborhood Commercial
a. Automotive and vehicular equipment should be revised to
say 'accessory automotive and vehicular equipment."
b. Minimum off-street parking requirements should be
revised
to coincide with standards established by the City of
Glenwood Springs.
c. A statement needs to be added to the 'Additional
requirements" section that says that .all graphics will meet
the requirements of the Garfield County Sign Code at a
minimum. It is suggested thatthe term "tradesman design
features" be deleted.
9. District: G - Resort Complex
a. The minimum setbacks be reworded to state "Within
platted envelope as designated on final plat.
b. That the minimum off-street parking standards be revised
to meet the same suggested standards in the District F
text.
10. District: H - Public, Seni-Public and Recreation
a. That a maximum height be established - 35 feet is
suggested. -
b. That minimum off-street parking standards be established
for the uses identified as "Uses Permitted."
11. District: J - Open Space
a. Suggest adding "schools" as a use permitted.
b. In conjunction with the above suggestion, that
off-street parking requirements be established for schools.
12. Given all of the concerns about off-street parking, it is
suggested that a supplementary section be developed to
identify the off-street parking requirements for the entire
PUD.
C. Standard Conditions:
1. Re -V wagency - a -ants: rf ormal �.,ha:c b
^.•
received from the City of Glenwood Springs and Town of
Carbondale staffs.
The following is a summary of comments:
a. Questioned the consistency with the Comprehensive Plan.
Those concerns were addressed in previous discussions.
b. Concerns about. the zoning text. These concerns were a
part of the previous zoning discussion.
C. Glenwood Springs expressed concern about the potential
conflict between the proposed "small" conference facilities
in Spring Valley and the City's desire to develop a major
conference facility.
d. Is the open space available to the general public for use
and enjoyment? It appears that the open space may not be
accessible to the general public based on a statement on
f. Concerned about the impacts on County services and
the need for a definite time line. for making services
7 available within the development based on need. They
j suggest that the ideal situation would be for the
development to be self -supporting and self-governing if
Possible.
g. They recommend that if the development is approved that
the financial guarantees be very specific as to when, where
J and how improvements will be made with a specific phasing
plan.
h. Some of the assumptions made in the fiscal impact analysis
were questioned:
1. Projections of mill levies based on assessed value.
There seems to be some discrepancy in the figures.
2. That a unit built will be sold within a year of
construction.
3. Questioned the assumption that service needs will be
similar to other rural areas given the concentration of
population in one area at an urban type of density.
4. Generally felt that an indepth analysis needed to be
done.
2. Staff Comments:
a. At the December 14, 1903 presentation by the Spring Valley
Ranch planners the following concerns were noted:
1. That the sewage treatment facilities would be visibly
offensive to the neighbors.
. 2. That the sewage treatment facilities could pollute the
aquifer and be the cause of offensive odors to neigh-
boring properties.
3. Some people requested access easements across Spring
j Valley Ranch property to their parcels from the proposed
road system.
J
4. Concern about the acreage devoted to schools and commerc-
ial land. In both cases, it was felt to be too small.
Spring valley Ranch has the following responses:
1. The sewage treatment ^'e:a11 be constructed in a
manner that will be the leastvisually obtrusive to
the area.
2. The odor and polluting of the aquifer have been dealt
with in the design of the proposed treatment facility.
3. Access agreements will be provided to those persons
requesting them.
4. The size and location of future school sites is being
explored with the school district presently and will
be included on any future subdivision applications.
The commercial area is designed such that the projected
traffic volumes will not be exceeded as a result of
attracting people from outside the Spring Valley area
to shop. If, at some future date, a need for additional
commercial area becomes necessary, an application, to
amend the PUD will be made.
b. A fiscal.impact analysis was prepared and submitted as a part
of the application. The analysis makes a number of assumptions
that projects an assessed value of over $140 million when the
development is completed in an estimated 15 years. If the -_
assumptions are correct, theCountycould derive substantial
revenues from the project, which would offset the projected
expenditures and leave a surplus of funds available when the
development is completed. During the initial years, there is the
potential for deficits in some fund accounts. Whether or not the
assumptions are correct is not that critical to this analysis
given that the County has certain limits as to what issues can be
related. to a land use decision. Those parameters are related to
roads, water, sewer and fire protection.,
Spring Valley has proposed a complete water and sewer system, on
and off site road improvements and fire protection facilities.
These facilities will be phased over the proposed 15 year build
out of the project. It will be necessary, as a part of anyfinal
plat, to enter into a subdivision improvements agreementto
guarantee that certain public improvements are completed. It is
suggested that a public improvements phasing plan be submitted to
the County that ties the facility and/or road improvements to a
specific number of dwelling units being final platted.
C. The developers have submitted, as a part of the application,
a proposal for the Landis Sanitation District. The proposed
service plan is helpful in evaluating the sewage treatment
facilities as far as odor and groundwater pollution. It is not
appropriate to make a recommendation on the special district
until the service plan is submitted in accordance with statutory
requirements.
It is recognized that some formal management entity will have to
be set up to control the water and sewer systems. At a minimum,
an incorporated homeowners association should be set that is
responsible to the facilities improvement, expansion and
maintenance. -
d. Regardless of the revenues generated, the County Road and
Bridge Department is not in a position to take on the maintenance
and upkeep of the proposed road system within the development.
This will have to be the responsibility of the developer to .
maintain and improve the road system through some management
entity such as the previously mentioned incorporated homeowners
association.
e. The developer recognizes that a water augmentation plan will
have to be developed. It is proposed by thedeveloper that the
augmentation plan be completed prior to preliminary plan
submittal. The County concurs with this proposal.
I. A more definitive PUD Plan 14ap will have to be developed that
defines zone district boundaries, areas and density.
The District: A, Estate Lots are not included as a part of
the central sewage disposal system. These lots may require
engineered individual sewage disposal systems. To insure that
the systems are properly maintained, a maintenance schedule
should be developed as apart of the covenants that requires all.
homeowners in the area to adhere to regularly scheduled pumping
and general maintenance of their facilities. Additionally, in
locating the building envelopes, the developers should
demonstrate a preliminary plan that there is enough room on each
lot for the replacement of a system that. fails.
h. Fire protection is'a critical part of this development. The
developers have proposed to build and equip a fire protection
facility on site, at the beginning of the project. It will be
necessary, prior to any final plat approval to establish a legal
entity responsible for maintenance, training and manning the
facilities. This could be accomplished by joining one of the
existing fire districts.
i. Questions about public access to public lands have been
raised. The developers have noted that there is an existing
.. access easement through the property that will be legally
described on the appropriate final plat. The developer has
requested the ability to utilize the County'sright of eminent
domain to implement the necessary improvements (i.e., acquisition
of R.O.W., construction easements, etc.) to County Road 114.
IV.. FINDINGS:
1. That the meeting with the Planning Commission was extensive
and complete, that all pertinent facts, matters, and issues were
submitted and that all interested parties were heard at that
meeting;
2. That the proposed zoning is in general compliance with the -
recommendations set forth in the Conprehensive Plan for the
unincorporated area of the County;
3. That the proposed land use will be compatible with the
existing land uses in the nearby area;
4. That other than the foregoing particulars, the requested zone
change sere an pian apprnval herein is in genera).
conformity with the Comprehensive Plan for Garfield County,
Colorado, and does meet all requirements of the zoning resolution
of Garfield County, and further, that the requested planned unit
development is suitable and appropriate for the subject property,
concerning the location, condition and circumstances of said
property and is in the best of health, safety,, convenienceinterest andwelfare of the citizensorder,
of
Garfield County.
R_C_COM_NE_N DATION:
APPROVAL, with the following conditions:
1. That the PUD zoning text be amended to address the issues
identified in III B.
2. That an additional document be submitted to the County that
identifies specific schedules for services and/or improvements
that will be made or developed that deals with road improvements,
water and sewer facilities and fire protection facilities. The
improvement schedule shoald be tied to a specific factor such as
dwelling units approved at final plat. All documentation should
. .. � . . ,, .... ,.i :.,: ...•., nlnn ^p hmittal.
A. That, at a minimum, an incorporated honeowners association ])a
formed that will be responsible for the construction, operation
and maintenance of the water and sewer system and roads, at a
minimum.
b'. That a water augmentation plan be approved prior to
Preliminary Plan submittal.
dr V. That a revised PUD Plan Map be submitted that gives more
definite boundaries, area calculation, and maximum densities.
6 a: That the existing public access to public lands be included
on subsequent subdivision plans and legally described on the
appropriate final Plat.- -
', .8. That the developer shall demonstrate at Preliminary Plan that
there is adequate area on each Estate lot to accommodate an
.individual sewage disposal system and area for expansion, should
it become necessary. Additionally, a"sewage disposal system
maintenance program be developed as a part of the covenants.
-§. That an entity capable of providing and maintaining the
proposed fire protection facilities and equipment be proposed. at
Preliminary Plan. '
1U'. That the developer develop the appropriate access agreements
with the adjacent landowners requesting such easements and that
plans for mitigating the impacts of the road on Mr. D. G. Blinks _
property shall be provided by .the developer.
/ O d -f. That the developer be allowed to utilize the County's right
of eminent domain to make the proposed improvements to County
Road 114.
EXHIBIT "4"
i
RECEPTION N0. STATE OF OF COLORADO BOOK (,-S D PAGE
11) ss. ( r/�
County of Garfield 1 C� t. S " (- l' l �` r(��
GARFIELD CCUiNTY CLERK, CGLORADO
Ata ..... ........ ..y_efjUlar._........._.,............_.... meetinq of the Board ol. Coumy Commj=u n. fHor Garfield County, Colors!.,.
held at the Court House in Glenwood Springs an...........................Nand V........................ - .... _........ the ....... _.2n d. ............... -.Lay of
................_JU................. ......<.. A. D. 19...f ...... there were prcunt:
Larry, yela SCl lleZ...... _............................ . Coms11s;oner Cha¢r..an
FlavenJ. Cerise coc-� ani
.................................................
Eugene -."Jim" ..... house Cc-r.::aaner
Earl Rhodes
...... ...... ............................................ _...... ............. Ceunly Attorney
Mildred Alsdorr --
, Cluk of the Boa d
--------
-----...._...-------_
...................-----......----......
when the fallowing proceedings, among others werc had and done, to-wi[:
RESOLUTION N0. 84-..IP7
!� RESOLUTION CONCERNED WITH THE APPROVAL OF AN APPLICATION OF
SPRING VALLEY HOLDING, LTD, FOR THE SPRING VALLEY RANCH PLANNED
UNIT DEVELOPMENT REZONING AND APPROVAL OF ITS PLAN
Li
WHEREAS, Spring Valley Holding, Lt-. has filed an
application with the Board of County Co.7unissioners of Garfield
County, Colorado, for approval of the Spring Valley Ranch
Planned Unit Development rezoning and its Planned Unit
i Development plan for the parcel of land to be rezoned;
WHEREAS, a public hearing was held by this Board on March
,l 5, 1984 and April 2, 1984;
WHEREAS, based upon the evidence, sworn.: -,testimony,
exhibits, study of the comprehensive plan for the unincorporated
areas of Garfield County, comments from the Garfield County
Department of Development and the Garfield County, Planning
Commission, and comments from all interested parties, this Board
finds as follows -
1. That proper publication and public notice was
provided, as required by law, for the hearing before the Board;
2. That the hearing before the Board was extensive and
complete, that all pertinent facts, matters and issues were
submitted, and that all interested parties were heard at the
hearing; I
i 3. That the Garfield County Planning Commission has
recommended to this Board that the requested zoning change be
granted, provided that certain conditions be imposed upon the
applicant;
4. That the proposed zoning is in general compliance
with the recommendations set forth in the comprehensive plan for
the unincorporated area of the County;
5. That the requested zone change amendment and Planned
Unit Development plan approval are in general compliance with
all requirements of the applicable Garfield County Zoning
Resolution and, further, that the requested planned unit
development is suitable and appropriate for the subject
property, given the location, condition and circumstances of the
j property, and it is generally compatible with existing land uses
I in the surrounding nearby area;
`l 6. County Road 114 is the only appropriate access to the
ll development from State Highway 82;
i 7- That, for the above -stated and other reasons, the
Proposed zone district amendment and planned unit develoDment
plan is in the best interest of health, safety, morals,
convenience, order, prosperity and welfare of the citizens of -
Garfield County; and
WHEREAS, the Board must, for the purpose of analyzing the
subjpct application, in accordance with the provisions of the
Garfield County Zoning Resolution, establish the neighborhood
which may be effected by the possible approval of the zoning
chance and, further, the Board has determined that, except as
otherwise noted herein, such neighborhood is in the area of
Garfield County, Colorado, within a two and one half (2 1/2)
mile radius of the proposed development.
NOW, THEREFORE, BE IT RESOLVED by the Board of County
Commissioners of Garfield County, Colorado, that the application
for the Sprinq Valley Ranch Planned Unit Development rezoning
and Planned Unit Development plan be approved for the following
described property in the unincorporated area of Garfield
County, as follows:
1. That the zoning text of the Planned Unit Development
'i plan for the Spring Valley Ranch Planned Unit Development is
ii attached hereto as Exhibit "A", incorporated herein by reference
as if fully set forth herein.
2. That the planned, unit -development map for the Spring,
Valley Ranch Planned Unit Development is attached hereto as
,i Exhibit "B", incorporated herein by reference as if fully set
forth herein.
3. That the legal description of the property which
encompasses the Spring Valley Ranch Planned Unit Development is
attached herein as Exhibit "C", incorporated herein by reference
i
as if fully set forth herein.
J 4. Approval of the Spring Valley Ranch Planned Unit
Development rezoning and planned unit development plan is
expressly contingent upon the following conditions being
satisfied:
a. The applicant shall begin development of the
Planned unit development within one (1) year from the date of
this Resolution. This activity may consist of the applicant
proceeding with the development of a water supply plan for the
property. The applicant shall be required to proceed with due
diligence in the processing of the water supply plan for the
project, and the obtaining of any required approvals or court
decrees in a prompt and reasonable manner. The applicant shall
file the preliminary plan for the Spring Valley Ranch Planned
Unit Development, in accordance with the Garfield County
Subdivision Regulations then in effect, within one (1) full
construction season of obtaining the necessary approvals and
court decrees, or two (2) calendar years from the date of
approval of the water supply plan by the appropriate water
court, if required.
b. The applicant may develop the planned unit
development in phases. The applicant shall submit its final
plats for the phases of the planned unit development, in
accordance with its representations to the Board. The applicant
shall, on an annual basis, submit a written report providing the
following information:
The status of the development which has occurred
Upon the parcel within the past twelve (12) month period, and
the areas of thedevlopment which the applicant proposes to
submit final plats for within the next twelve (12) month period.
C. The applicant shall submit to the Board, as an
integral part of its preliminary plan submittal, a plan which
identifies specific schedules for the provision of services and
the installation of necessary improvements for the particular
phases and stages of the project. This document shall specify
the manner in which the necessary public services and public
improvements will be made or developed, including road
improvements, water and sewer facilities and fire protection
facilities. The specific improvements schedules shall be tied
to the applicant's development schedules, as submitted to the
Board for the particular ,phase or stage of the development to
which the necessary public services and public improvements are
reouired. The applicant shall provide a development schedule
for the provision of the required public services and
improvements for each particular stage or Phase of the project
so that each stage of the development can be developed so as to
insure that there are existing surrounding and available
facilities and public services and that the failure of the
devloper to proceed to develop a subsequent phase or stage of
the project will not have any substantial adverse i„pacts on the
project or its surroundings as it is developed.
d. That the applicant shall be responsible for the
formation of an incorporated homeowners association or other
appropriate legal entity. This legal'' entity shall be
responsible for the operation and maintenance of the
development's water and sewer system, road system, parks,
recreational facilities and open space, excluding the golf
course and related facilities.
e. The applicant shall be responsible for the
development and filing of a water supply on plan for the project
and exercise due diligence in the process. The applicant shall
be responsible for obtaining all necessary approvals and decrees
of the water court or other governmental agency authorizing an
appropriate water supply plan in a manner consistent with due
diligence in the prosecution of these matters. An approved
water supply plan shall be obtained prior to submittal of the
preliminary plan for the project.
f. All subsequent subdivision plans filed by the
applicant.shall include existing public access to public lands
which shall be legally described on the appropriate final plats
for the develoament.
.�g. The developer shall be required to demonstrate
at the preliminary plan that there is adeouate area on each
estate lot to accommodate an individual, professionally
engineered sewage disposal system appropriate to the individual
parcel land an area for expansion, should it become necessary.
The applicant shall be responsible for the development of a
sewage disposal system maintenance program, which shall be
included in the covenants for the development,
-1 h. That the applicant demonstrate, at preliminary
plan, that there is a legally authorized entity which is
prepared to and is capable of providing and maintaining the
necessary level of fire protectrion facilities and equipment for
the project.
i. The applicant shall develop appropriate access
agreements with adjacent property owners who request such access
,J agreements or easements in its preliminary plan submittals. The
applicant's preliminary plan submittal shall also provide for
-j the mitigation of any impacts of its road construction or
i improvment proposals on Mr. B.G. Blink's property, which shall
also be submitted with the preliminary plan for the project.
lj. The developer shall cooperate with the County on
the development of a program for off—site road improvements for
the length of County Road 114, from the intersection of State
Highway 82 and County Road 114, to the entrance to the Spring
,l Valley Ranch Planned Unit Development. It is recognized, under
the Spring Valley Ranch master plan for development, that County
'1 Road 114 will, at some point in the future, be required to be
enlarged to four (4) lanes. The phase in the development of the
Spring Valley Ranch Planned Unit Development at which County
Road 114 will, at some point in the future, be required to be
become a four (4) lane road shall be set forth in the
applicant's preliminary plan submittal, at which point the Board
shall set forth the manner and scheduling of the necessary road
improvements for the project and County Road 114. The road
improvements required for the development of the Spring Valley
Ranch Planned Unit Development are subject to prior conmittments
to County Road 114 improvements previously made by the Los
J Amigos Ranch Planned Unit Development and the Lake Springs Ranch
PUD. These committments of the Los Amigos PUD and the Lake
'i Springs PUD represent their full obligation with regard to road
_i improvements to County Road 114, in accordance with the planned
unit development rezoning aprpovals presently in effect or other
approvals or conditions now valid and in effect. The Board
recognizes that it may become necessary for it to use its
authority of eminent domain, should the applicant be
unsuccessful in purchasing the required right-ef-way property
for improvements to County Road 114, despite making its best
efforts to privately purchase the land for its fair market price
at the time of the offer. Should the applicant be unsuccessful
in obtaining the necessary right-of-way, this Board shall, in
accordance with the applicable constitutional and legal
limitations upon its authority, exercise its legal rights to
commence condemenation proceedings for .those particular parcels
of peoperty. which the .developer has been unable to obtain
privately for the road improvements required for County Road
114. The developer shall be fully responsible for all costs
incurred by the County in exzrcisino its lecal authority and
power6 of eminent domain in condemning the properties
Resolution. required
for improvements to County Road 114, in accordance with this
k. The applicant
preliminary plan submittal, the
necessary and appropriate solid
the project, which provisions
of the Board.
shall set forth, in its
Provisions which it has made for
waste disposal facilities for
shall be subject to the approval
1. The developer shall consider the feasibility of
an adequate and appropriate public transportation system for the
project. The plan for such an appropriate and adequate public
transporation system shall be submitted with the preliminary
plan for the Board's consideration.
M. The developer shall provide for appropriate and
necessary animal control mechanisms through covenant provisions
or homeowner association documents, or other appropriate legal
mechanisms. Such covenants or legally enforceable mechanisms
shall provide, at a minimum, that domestic animals shall be
restricted to fenced enclosures on the lot of the owner or, if
outside the owner's fenced enclosures, all domestic animals
shall be under the control of the owner, or the owner's
designated agent, and on a leash.
n. That the final platting and development of the
Spring Valley Ranch Planned Unit Development m.av occur in
phases. The development of the project shall be in accordance
with the applicant's development schedule, as represented to the
Board in its application or annual report, the conditions of
this Resolution, the conditions of any subsequent Resolution
1, enacted by the Board with regard to the subdivision of the
,1 Spring Valley Ranch Planned Unit Development, Section 4.09 of
the Garfield County Zoning Resolution of 1978, as amended, and
j the Colorado Planned Unit Development Action of 1972, C.R.S.,
,i Section 24-67-101 et seq., as amended.
Upon motion duly made and seconded the foregoing
Resolution was adopted by the following vote:
I -
-----UXXIag- z -------------- Aye
_—__ Flaxen J.—ftLs , Aye
_____Eugene "Jim" Dr=nkhou�g
ATTEST:
7
-- ----Az
-----
Clerk of the Board ----
STATE OF COLORADO )
)ss.
COUNTY OF GARFIELD)
, Aye
Commissioners
BOARD OF COUNTY COMMISSIONERS
OF GARFIELD COUNTY, COLORADO
Chair,
I, --- ----------- County Clerk and
ex -officio Clerk of the Board of County Commissioners in and for
the County and State aforesaid, do hereby certify that the
annexed and foregoing Resolution is truly copied from the
records of the Proceedings of the Board of County Commissioners
for said Garfield County, now in my office.
IN WITNESS WHEREOF, I have hereunto set may hand and
affixed the seal of said County, at Glenwood Springs, this
day of _-- A.D. 1985.
County Clerk and ex -officio Clerk of the Board of County
Commissioners.
EXHIBIT "5"
SPRING VALLEY
WATER RESOURCES
AND
WATER RIGHTS
PREPARED BY MAY, 1.9-77
WRIGHT WATER ENGINEERS GLENWOOD SPRINGS
TABLE OF CONTENTS
COVER LETTER
TABLE OF CONTENTS
SECTION TITLE PAGE
I INTRODUCTION I- 1
11 WATER RESOURCES 11- 1
Surface Hydrology II- 1
Groundwater Hydrology II- 4
III WATER RIGHTS III- 1
IV OPPORTUNITIES FOR COOPERATIVE USE OF
WATER RESOURCES IV- 1
Reasons for Cooperative Use IV- 1
Water Management Districts IV- 2
V CONCLUSIONS V- 1
BIBLIOGRAPHY
FIGURES (In back of report)
Figure 1 Spring Valley Basin, Surface Water Resources Map
Figure 2 Spring Valley Basin, Groundwater Resources Map
LIST OF TABLES
Table III -1 Decreed Water Rights in Spring Valley Ill- 2
Table III -2 Undecreed Registered Wells III- 5
SPRING VALLEY
WATER RESOURCES
AND
WATER RIGHTS
SECTION 1
INTRODUCTION
This report is an evaluation of the water resources and water
rights in the Spring Valley basin, located about three miles south-
ieast of Glenwood Springs, in Garfield County, Colorado. The report
ri identifies opportunities for development of the water resources in the
'1 basin, as well as discussing some potential problems if the water re-
sources are notdeveloped and used in a cooperative and orderly way.
,.l
The report defines and maps the groundwater (wells) potential in
�1
Spring Valley based on existing geologic mapping, well logs, interviews
with drillers, field inspection, and review of the State Engineer's
Records. The report also estimates the amount of both surface and
`l groundwater in Spring Valley available for use by various types of land
use ,
The report lists the decreed water rights in the Spring Valley
i
,f area and comments on the historic use of these rights.
,i The material presented in this report isnot sufficient "proof''
'l by itself to transfer water rights from irrigation use to domestic
and municipal uses. We have, however, made general comments on the
overall water resource situation in Spring Valley, including some
j, discussion of management plans for the main aquifer.
1 1-2
The Spring Valley basin has a topographic tributary area at the
top of Red Canyon of about 11 square miles. From the low valley bottom
elevation of 6,600 feet the basin rises to an elevation of 9,400 feet
at the northern boundary. Vegetation ranges from hay fields in the
valley floor, to scrub oak and sagebrush over most of the basin. A
few areas of pinion -juniper are found in the basin, mostly at elevations
below 7,000 feet. Some conifer and aspen growth occurs at the higher
elevations in the valley.
When the first settlers arrived in the early 1880's Spring Valley
contained a large natural lake. One of the pioneers, Mr. Forker, drained
the lake by cutting a drainage channel through to Red Canyon. Once
the lake was drained he began to farm the land. Between 1882 and 1885
eight ditches were constructed in the Spring Valley area. Most of them
diverted water from Landis Creek, the only major water course in the
basin. Around 1909, the only major man-made reservoir was constructed at
I the headwaters of Landis Creek.
Since the early settlement of the basin, springs have been used
for domestic and stock water needs. A few of the larger springs have
i been used to irrigate crops.
L�
Less than ten percent of the 11 square mile basin is made up of
'i
publicly owned land. Below is an approximate breakdown of the relative
ownership in the Spring Valley basin.*
It should be noted that the water resources in Spring Valley could, and
probably would, serve land outside of the topographic basin, e.g. C.M.C.
land outside of the basin is now served by wells drilled into the Spring
Valley alluvium.
1-3
White River Nation Forest
According to the present Garfield County Master Plan, Spring valley
is presently zoned A/R/RD (Agricultural/Residential/ Rural Density).
This designation allows a minimum lot size of 2 acres.
r� According to Bob Witkowski, Garfield County Planner, the maximum
!1
density which would be allowed under the Planned Unit Development
Ordinance would be 4 units per acre. Allowing for undevelopable areas
(such as steep slopes and flood plains) included in gross acreages, this
might allow up to 10 units per acre in clustered developments. Zoning
changes in Spring Valley will probably occur in response to action by
the land owners.
PERCENT OF
OWNER
BASIN LAND OWNED
Beattie Enterprises
53
Lookout Mountain Ranch
8
Ould
7
Foster Petroleum
6
Cox
4
Nieslanik
3
Colorado Mountain College
3
Powers
2
Kindall
I
Gould
I
Carlson
I
Cabrinha
I
Sunlight Partnership
I
Bureau of Land Management
8
White River Nation Forest
According to the present Garfield County Master Plan, Spring valley
is presently zoned A/R/RD (Agricultural/Residential/ Rural Density).
This designation allows a minimum lot size of 2 acres.
r� According to Bob Witkowski, Garfield County Planner, the maximum
!1
density which would be allowed under the Planned Unit Development
Ordinance would be 4 units per acre. Allowing for undevelopable areas
(such as steep slopes and flood plains) included in gross acreages, this
might allow up to 10 units per acre in clustered developments. Zoning
changes in Spring Valley will probably occur in response to action by
the land owners.
SECTION II
WATER RESOURCES
SURFACE WATER HYDROLOGY
The Spring Valley Basin is located about three miles southeast of
Glenwood Springs at elevations ranging from 6,600 to 9,400 feet above
sea level. Total area of the topographic basin is about 11 square miles.
The only major drainage course in Spring Valley is Landis Creek,
which drains less than half of the area. The headwaters of Landis Creek are
in the northeast of the basin, and begin south of Glenwood Canyon at
elevations above 9,000 feet. The Landis Creek drainage then opens to
the southwest for about 3 miles, where it enters the low area of Spring
Valley. Waters in the low area of Spring Valley flow north and then down
Red Canyon for two miles to the confluence with the Roaring Fork River.
Little, if any, Landis Creek flow ever reaches Red Canyon.
Landis Creek has a total tributary drainage area of 4 square miles.
,l Of this, 0.9 square mile is tributary to Hopkins Reservoir, and 3.8 square
miles is tributary to the point where Landis Creek crosses the county
road.
In Section 15 Landis Creek has a continuous year round base flow
fed by springs located above 8,000 feet. This base flow infiltrates
the ground before it reaches Spring Valley. Only during the height of
I
spring snowmelt runoff or after heavy rain storms does Landis Creek flow
,f enough to yield surface water to Spring Valley.
J
The amount of precipitation in the Spring Valley area varies with
a
lJ elevation. Higher portions of the basin receive an average of 25-30 inches
of precipitation per year, while the lower valley bottom receives 15-20
II -2
inches in an average year. More than half of the precipitation falls in
the form of snow. Drought years (such as the 1976-77 winter) precipita-
tion can be expected to be 30% or less than the normal year's precipitation.
Several residents of Spring Valley believe that the area receives
considerably less precipitation than the Roaring Fork and Colorado River
valleys just a few miles away.
Average annual gross open water surface evaporation is estimated
to be 32 inches per year. Net lake evaporation would range from 12 to
17 inches in the valley bottom.
Total annual precipitation over the 11 square mile basin equals
about 16,000 acre feet of water. Most of this is evapotranspired to the
atmosphere by vegetation, open water surfaces, and snow sublimation.
A small, undetermined portion of the water, perhaps 1% or 2%, percolates
deep into the bedrock and eventually reaches streams outside the basin
via springs.
Stream flowsthat reaches the lower areas of Spring Valley occur only
1
after heavy rainstorms or during the peak of spring snow melt runoff. This
:I
,) flow, along with the flow from various springs in the area, recharge the
Spring Valley aquifer (see groundwater section). If the aquifer is ''full",
`) the excess will flow down Red Canyon.
Calvin Cox, who has lived in Spring Valley since the 1930's, told
Wright Water Engineers that water from Spring Valley flows down Red
Ij Canyon every spring. The rate of flow is controlled by a ten foot high
i dam which was reportedly constructed by Garfield County to protect the
county road from high spring flows.
11-3
Using information from Mr. Cox, we have estimated that the average
annual flow leaving Spring Valley down Red Canyon is about 400 to 600
acre feet. This spring's spillage down Red Canyon was estimated to be
15 acre feet.
When the dam's 36 inch CMP outlet is closed, water can be backed
up to a depth of about 7 feet. When the water is 4 feet above the outlet
invert, the water will back up about 3,000 feet. At a depth of 7 feet
the water is estimated to back up about 5,000 feet.
Extreme precipitation for the Spring Valley area has been defined
by Federal Weather Agencies (See Bibliography) as follows:
FREQUENCY
DURATION
DEPTH IN INCHES
2 Yr.
6 hr.
.9
5 Yr.
6 hr.
1.2
10 Yr.
6 hr.
1.4
25 Yr.
6 hr.
1.6
50 Yr.
6 hr.
1.8
100 Yr.
6 hr.
2.0
2 Yr.
24 hr.
1.2
5 Yr.
24 hr.
1.6
10 Yr.
24 hr.
1.8
25 Yr.
24 hr.
2.2
50 Yr.
24 hr.
2.4
100 Yr.
24 hr.
2,6
1I-4
GROUNDWATER HYDROLOGY
Stratigraphy
Five major geologic formations outcrop in the Spring Valley area.
The oldest formation is the Eagle Valley Evaporite. This formation
consists predominantly of interbedded gypsum and dark gray shale. The
quantity of groundwater which can be pumped from the Eagle Valley
Evaporite varies greatly with location; however, water pumped from this
formation is usually high in total dissolved solids and sulfates and is
gnerally unfit for human consumption. In some cases the water from this
formation is not fit even for irrigation use.
1 Lying immediately above the Eagle Valley Evaporite is the Maroon
Formation. This formation consists of red shales, siltstones, sandstones
and conglomerates. Near its contact with the Eagle Valley Evaporites,
the Maroon Formation contains numerous lenses of salt and gypsum beds.
ii
Groundwater availability from the Maroon Formation is site specific. Near
recharge sources the water quality is generally good. In areas where
gypsum and salt beds are present, groundwater is generally high in total
J dissolved solids and sulfates. Total thickness of this formation in the
study area is unknown. Near Glenwood Springs the measured thickness of
,l
the Maroon Formation exceeds 3,000 feet. Red Mountain and Red Canyon are
;l examples of the Maroon Formation.
Next in the series of geological formations in the area are the
Basalt Lava Flows. These flows form a large percentage of the surface
geology in the Spring Valley area. The flows consist of a dark gray
basalt, and vary considerably in thickness over the study area.
I.1
ii
i
Jointing and fracturing are characteristic of this material. Primary
rporosity in the basalt is very low; 'however, due to the jointing and
fracturing, secondary porosity may yield water in areas near recharge
sources
The fourth type of material found in the area is colluvium, which
consists of landslide material, mud flows and weathered bedrock. The
colluvium is generally very thin and lies above the water table. This area
should not be considered as .a source of water.
The youngest geologic material in the area is the alluvium.
Alluvium is found at the lower elevations in Spring Valley. This material
has been deposited primarily by streams, but may also contain older lake
deposits. It consists of sands and gravels intermixed with clays and
silts. The thickness in the lower part of Spring Valley varies from less
than 1 foot near the edges of the valley to probably over 200 feet near
the center of the valley. The Colorado Mountain College wells are
drilled into this alluvium. Review of the data suggests that in some
localities the valley alluvium may produce moderate to moderately high
volumes of water.
Geologic Structure
The entire area of investigation is located on a northwest trending
synclinal feature as defined by the base of the Leadville formation which
exists several thousand feet below the valley. The study area lies on the
northeast flank of this structure. The overall dip of the major formations,
such as the Maroon, is generally to the southeast. In some localities,
i
1 minor folding is present, and therefore structural trends change somewhat
_i
11-6
i
Spring Valley lies on what is termed a graben, a down dropped
block between two fault zones which trend northwest -southeast. The
eastern fault zone passes through the old Hopkins homestead. The
surface expression of this fault can be seen in a sharp change in slope
near this point.
Additional evidences of faulting are the springs which flow out
of the soil along this fault. The western fault zone can be seen just
west of the flat area in the low lands of Spring Valley. In both instances
the faults cut through the basalt flows; however, these faults are
evidently much deeper seated, and also fracture the underlying bedrock
such as the Maroon formation. The faulting to the west of Spring Valley
is seen in two faults which have a generally east - west trend. These
faults, indicated as terminating at the edge of the alluvial fill in
Spring Valley, may actually extend under this material.
NERALIZED GROUNDWATER POTENTIAL
Figure 2, at the back of the report, defines seven areas of
varying groundwater potential. Each area is discussed in detail below.
Area AI.
This area
consists of
deep
alluvial material
in
the lowest
area
of Spring
Valley.
Wells drilled
into
this material can
be
expected
to
produce moderate to moderately high yields. Water quality should be
adequate for domestic supply. Exact thickness of the alluvium is not
known at this time; however, at the southeast end of the valley, four
._1
wells have been drilled into this material. These wells are owned by
the Colorado Mountain College and are constructed to depths varying from
_i
220 to 300 feet. Production of these wells ranges from approximately
I
:J
II -7
50 gallons per minute to 200 gallons per minute. No deep wells have
been drilled in the northern part of the alluvium, but properly located and
designed wells in this part of the valley can be expected to produce
similar amounts of water. Water levels in the southern part of the valley
are reported to be in the neighborhood of 74 to 80 feet; however, in the
northern parts of the valley water levels are expected to be shallower.
Area A2. This alluvial area is located adjacent to the deep alluvial
deposits in the center of the valley. Geologic materials found in Area
A2 consist of alluvial material, sediments of the Maroon Formation, and
some basalt flows. Yields from wells drilled into this zone would be
site specific depending upon the geologic formation encountered. Water
f]
IJ quality would be expected to be similar to that encountered in the Spring
Valley alluvium. Water levels in wells in this zone should also be
approximately the same as those drilled into the alluvial material.
Area B. This area, located east of Spring Valley, forms the high terraces
east of the Spring Valley Road. A shallow mantle of alluvial boulders
and gravel lies on top of basalt lava flows in this area. One of the
previously described northwest -southeast trending faults occurs in this
area and gives rise to numerous springs. The exact thickness of the
basalt in this area is not known; however, wells drilled to the east of the
area of investigation have encountered basalt at depths ranging from
40 feet to over 110 feet below the surface. The depth and nature of
faulting in this material is extremely important to well production.
"i Therefore the area has been divided into subareas Bl, B2, and B3. Area
BI has potential for individual small capacity domestic wells penetrating
the basalt, which would obtain most of their water from fractures in the
basalt and from gravels which may exist at the base of the basalt.
Area BI appears to have potential for small individual home wells
due to the proximity of a recharge zone. It is also anticipated that the
fault system which produces springs to the east may also give rise to
subsurface springs which flow down -gradient into the B1 area.
Area BZ lies at intermediate elevations between the valley floor
and Area Bi. This area is also underlain by volcanic basalt flows. Due
to the distance from recharge sources, the lack of phreatophyte growth
and the distance from the previously mentioned fault, a large subsurface
water yield is not likely. This area does warrant additional study;
however, the alignment of the fracture systems in the basalt could allow
recharge to reach the area from higher elevations and from the alluvial
materials in Spring Valley. Diversions from Landis Creek could also be
a source of recharge.
Area B3 is also covered by basaltic flows. It is located north
L and east of the Hopkins homestead fault zone and south of Landis Creek.
The total depth of the basalt appears to be a critical factor in the water
production potential of this area. The exact depth of the basalt is
not known at this time, but preliminary investigations suggest that the
total depth in this area is not great. Thus the Maroon Formation is
probably present at shallow depths. Groundwater potential in this area
is estimated to be poor.
I
1 Area C. This area, as indicated on the amp, includes lands which are
underlain primarily by the Maroon Formation. Because of its age and mode
of deposition this formation, even where composed of sands and gravels,
is very tightly cemented. The type of cement is not known; however, the
formation does contain some porosity but characteristically does not
transmit water easily. Water contained in the Maroon Formation will
probably have high concentrations of iron and may be hard. Quantitatively,
this area appears to be able to support small domestic wells. A number of
wells drilled to the east of the study site have encountered yields ranging
from 8 to 15 gallons per minute. These wells vary in depth, averaging
about 300 feet below the surface.
It should be noted that recharge to the Maroon Formation is by
precipitation falling from directly above. Therefore, it is conceivable
that a large number of individual wells could deplete the upper part
of this formation. If future wells are to be drilled in this area, a
significant thickness of saturated material should be penetrated. Care
should also be taken as to quality of the water encountered. It is
anticipated that some treatment, either for hardness or iron, or perhaps
other constituents would be needed prior to use for domestic purposes.
Area D. This area is located on the northern edge of the area of investiga-
tion. It is underlain primarily by the Maroon Formation; however, just
to the north of the study area, a large outcrop of the Eagle Valley
Evaporite occurs. Characteristically the Maroon Formation yields very
poor quality water near the contact with the Eagle Valley Evaporite.
Groundwater potential in this area is therefore poor.
SECTION III
WATER RIGHTS
Table I presents a list of the decreed water rights in Spring
Valley. For purposes of this report they have been divided into four
catagories as follows:
Landis Creek Rights
The Kendall-Stricklett, Landis 1, Landis 2, O.K.., Forker Gibson,
Frank Chapman and Hopkins Reservoir rights were developed almost 100 years
ago to serve several separate tracts of land. Some of the original
ditches no longer exist. All of the above mentioned rights and all of
the decreed water rights on Landis Creek have been acquired by the
'? Hopkins Ranch. Over the years, the Hopkins Ranch consolidated all of
the Landis Creek diversions to one headgate now known as the Hopkins
1 Ditch. This practice, though not decreed by the court, was not
objected to by any other water user, since their practice did not injure
I any other vested water rights.
Cleve and Cox Water Riahts
The three Van Cleve water rights, now owned by Foster Petroleum,
diverted their water from year -around springs located above the Quigley
reservoir. The full flow of these springs has been used to irrigate
crops during the irrigation season in most years. In the winter the flow
from these springs contributes to the "Spring Valley Lake". To our
knowledge these spring rights have never been called out. They do not
_i
have the potential for harming any other Spring Valley water right, even
1
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if they are used to their full decreed capacity.
The Cox Spring has been used for many years to irrigate lands in
the north end of the valley. Like the Van Cleve springs, no one else
has relied on this water in the past except for Mr. Cox.
C.M.C. Wells
111j These relatively junior water rights derive their water from the
1 Spring Valley aquifer. They do not appear to be depleting or "mining"
the aquifer. Presently, they are not affecting other vested rights
except for the depletion to the "spill down Red Canyon".
Wells and Springs
The fourth catagory of water rights in Spring Valley are the dozen
plus small springs and wells that have been used for domestic and stock
purposes. Most of these are decreed (Table 1) but some are not (Table 2)
,l
1� We know of no interference between these rights. However, in the future
when more wells are developed,we believe there could be serious injury
'.I to many of these rights due to the individual and cumulative effects of
increased withdrawals and depletions.
'l By law, the water rights of Spring Valley are administered by the
State Engineer's Office. In recent years the Water Commissioner has not
i
been called upon to administer the waters of Spring Valley because no
one has claimed injury caused by another person'swater diversions.
Historically, each Spring Valley Ranch has used the water available to
i
it and has not interferred with other ranches'water rights. For this
1 reason, the Water Commissioner has not kept a good record of the water
diversions in Spring Valley. A review of the Water Commissioner's field
_i
Ill -4
books reveals very little accurate information about any of the Spring
Valley water rights.
There has been discussion among residents that recent well pumping
has affected the flow in some springs, but no party has taken serious
action against another on this issue. There may be some depletion to
some springs because of well pumping, but we believe the effect'has been
minimal. However, the effect of many wells is cumulative and could
cause measurable depletion to springs and groundwater tables.
The water that has historically "spilled" out of Spring Valley
down Red Canyon and reached the Roaring Fork River is considered
"tributary waters". This water may have been relied upon by absolute and
conditional water rights on the Colorado River. If this spill is reduced
or eliminated by new Spring Valley diversions, a senior water right on the
Colorado River could be injured. This injury could cause a call on the
junior Spring Valley rights, and could stop their diversions if the
appropriation doctrine were strictly enforced.
If these junior rights should be called out in the future (because
of oil shale development or the like) there would be several methods of
keeping the junior Spring Valley rights diverting. One method would be
the purchase of exchange water out of Reudi Reservoir.
Table 2 presents a list of registered but undecreed wells in the
Spring Valley area. There are probably other wells in the basin that are
not listed in this report and are unregistered and undecreed - such as the
Ould windmill at the head of Red Canyon.
PERMIT NO.
1809
16994
18148
23991
26305
3083OF
3o831F
31599
32895
M.y
TABLE III -2
UNDECREED REGISTERED WELLS
OWNER
AMOUNT
LOCATION
0. V. Robertson
15
qpm
SW
SW
36 -6S -89W
Robert Hall
15
gpm
SW
SW
6-75-88W
Los Amigos
20
gpm
SE
SW
4 -7S -88W
Loren Kirkham
8
gpm
SW
SW
36 -6S -89W
Sam Campbell
10
gpm
SW
SW
36 -6S -88W
Colo. Mtn. Coll. ?
100
gpm
NW
SW
4 -7S -88W
Colo. Mtn. Coll. ?
400
gpm
NW
SW
4 -7S -88W
William Schmid
20
gpm
NE
SW
28 -6S -88W
Paul Romisch
10
gpm
Ne
SW
6 -7S -88W
SECTION IV
OPPORTUNITIES FOR COOPERATIVE USE
OF THE WATER RESOURCES
REASONS FOR COOPERATIVE USE
Historically, no water user in Spring Valley has interferred with
another user's water supply. Recently, an increased demand has been made
on the water resources of Spring Valley for use within the valley and
for diversion of water to users outside of the basin. This demand began
with the drilling of the C.M.C. wells. Prior to that time (1967) only
ten water rights were decreed for use of Spring Valley waters. Since
then, over 20 water rights have been adjudicated by the water court for
use of Spring Valley waters.
When water rights for development purposes in Spring Valley are
considered, there are some "haves" and some "have pots" ,For example,
since the Hopkins Ranch (Beattie Enterprises) has controlled the entire
flow of Landis Creek for irrigation purposes for several decades, we
believe they could convert most, if not all, of the Landis Creek waters
to domestic and municipal type uses. The Ranch could also "export" or
sell any excess water it might have. In contrast, there are several
tracts of land that are "have nots" and must develop a physical and legal
water supply to develop their land.
The purpose of future management of the water resources would be to
`l equitably provide an adequate amount of high quality water to the water
LI users in the Spring Valley area. Under strict administration of the
LI doctrine of prior appropriation of water rights, development of Spring
IV -2
Valley water resources could be restricted. For example, if the
development of several large wells reduced flow in a spring, the spring
"right" could shut -down the wells.
With cooperation, a plan could be developed where well users
could compensate for the loss of flow in a spring. Cooperation would
create greater opportunities for fuller development of the water
resources of the basin.
Based upon chemical analysis of the C.M.C. wells, the main Spring
Valley aquifer now has good quality water. As development and water
uses increase in the area, the potential for pollution of the aquifer
will increase. The greatest threat to the quality of the aquifer is the
improper disposal of sanitary waste water, i.e. septic tank leach
fields.
Some of the groundwater resources in the Spring Valley area (in
areas B and C as shown on Figure 2) are being recharged slowly and
1
could be destroyed if heavy withdrawal of groundwater were made by wells.
Management (planning ahead) could limit the number of wells and the amount
of water pumped from those aquifers, thus preventing destruction of a
non-renewable water resource. If excessive withdrawal is not prevented,
wells could go dry, creating new water resource problems One domestic well
per 40 acres would not cause excessive withdrawal in the B or C zones.
L_;
WATER MANAGEMENT DISTRICTS
1 Water diversions in the State of Colorado are administered under the
i prior appropriation doctrine by the State Engineer's Office; hot,Jever, the
appropriation doctrine can be circumvented by forming special dater Basin
l authorities.
IV -3
The development of domestic and municipal water supplies can be
controlled by the formation of special quasi- governmental districts
] such as a Metropolitan District, a Sanitation District, a Water District
jor a combination of the above functions into one unit. These districts
1 can develop standards for the amount and location of water use and for
waste water treatment; they can impose these standards on water users
i within their jurisdiction.
3j The first step in forming a Water and Sanitation District is the
preparation of a service plan to guide the development of the water
supply and waste water treatment facilities within the district's
'1
boundaries. Such a district is not obliged to construct any facilities
r� when it is formed. Separate facilities within the district need not be
interconnected. A district authority could provide management service
for many independent areas: for example, coordination of well spacing,
enforcement of adequate waste water treatment, billing for services
rendered, provision of a better tax base for financing, promotion of
joint facilities to reduce unnecessary capitol expenditures, etc.
Possible diversion of water by users outside the basin and potential
water rights problems caused by the reduction of "spills" down Red
Canyon indicate it would be advantageous for the landowners in the Spring
Valley basin to cooperate in developing a unified water policy.
SECTION V
CONCLUSIONS AND RECOMMENDATIONS
CONCLUSIONS
The water resources available in Spring Valley greatly enhance the
value of the land in this area. The major sources of water within the
basin are the small springs scattered throughout the area, the upper
portion of Landis Creek, and the Spring Valley aquifer which contains
about 16,000 acre feet of water. (This 16,000 acre feet is approximately
the total annual precipitation falling on the basin.) Much of the area
has good potential for individual domestic wells (see Figure 2)• The
main aquifer is expected to support moderate to high yield wells.
Each year the Spring Valley basin produces excess water which spills
down Red Canyon. We believe it is possible to develop a basin -wide man-
agement plan which would control the water level in the aquifer by
pumping. Spills would then be contained to balance new consumptive use.
The topographic area tributary to Spring Valley is approximately 11
square miles; however, the hydrologic tributary area is somewhat larger.
Evidence of this can be seen in the Colorado Mountain College wells,
which lie outside of the ropographic boundary of the basin but draw
their water from the Spring Valley aquifer. The areas of land which are
topographically outside of Spring Valley,but which contribute hydrologically
to the aquifer,are those lying northeast, east, and south of the basin.
There are more than 2 dozen decreed water rights in the. Spring
Valley area. The senior rights (decreed prior to 1950) are all owned by
Beattie Enterprises or Foster Petroleum. The remaining junior water
rights are owned by many small water users and are generally for small
amounts of water.
V-2
Some land owners are "haves" and others "have nots" when it comes to
'l physical water supply and to water rights.
J The Spring Valley aquifer, Area A, is potentially the most valuable
water resource in the basin. The saturated thickness of the aquifer is
llestimated to be 150 feet, based on available well logs. From pumping
,l tests conducted at Colorado Mountain College wells, Wright Water
j Engineers has computed that water in storage is about 20 percent.
J Therefore, it appears that from 18,000 to 27,000 acre feet of water is
r] stored in the main aquifer, depending upon the thickness of saturated
J alluvium in the northern part of the valley. Only a portion (5% - 20%) of
i� thisgroundwater is available for economic withdrawal.
We believe that there are sufficient renewable water resources in the
Spring Valley area to safely support development that would consumptively
use up to 1,500 acre feet of water annually. This water could be used to
irrigate 1,000 acres of land or support up to 20,000 people if irrigation
were severely restricted. It is more probable that the ultimate development
r� of water resources of the valley will be used to support fewer than 10,000
l
people, some irrigation, and some export of water to users outside of the
topographic basin.
i
Recharge rates to the alluvium cannot be accurately estimated because
of the wide range of recharge sources. These sources include surface
infiltration, seepage from the "Spring Valley Lake", and subsurface recharge
` to the alluvium from bedrock sources plus surface water recharge. It is
even possible that lowering of the water level in the aquifer could increase
.i
recharge from the sides and from below. This cannot be evaluated with
present data. Conservative estimates of potential recharge to the alluvial
11 material would be in the magnitude of 500 - 1500 acre feet per year.
V-3
Spring Valley receives water from the Basalt Formation (Area B on
Figure 2), which lies outside of the topographic boundaries of the
Spring Valley Basin. For example, surface water near the old Hopkins
Homestead drains into Mesa Creek,but the water that infiltrates the
ground near the Homestead eventually drains into Spring Valley.
Published data (see bibliography), indicates that primary porosity
in similar basalts is almost nonexistent: However, secondary porosity
(fractures) is estimated to average about one percent. Because of the
nature of the fractures, well yields can vary greatly from one locality
to another. In areas where the fracture system is relatively extensive,
it may be difficult to develop dependable groundwater supplies because
water in the fractures drains rapidly to springs lower in the valley.
Groundwater levels may show considerable fluctuation depending upon the
season.
An important recharge zone to Area B appears to be the area traversed
1
by the Hopkins homestead fault zone. Numerous springs flowing from this
Ir� fault zone supply direct recharge back into the basalt. Another important
recharge zone within Area B is the high ridge above the fault zone. If
septic fields or other sources of contamination are located within this
J area, springs could be polluted.
Septic system location is extremely important in Area B. If
sufficient deep soil does not exist over the basalt, the fractures could
serve as direct conduits to the groundwater. Without the filtering
jaction of such porous media as soil, not only nitrate pollution, but also
lfecal contamination of adjacent wells could take place.
_J
V-4
Water levels in the Maroon Formation (Area C in Figure 2) occur
at about the 7,400 foot level in existing wells. A well penetrating
r 200 feet of saturated thickness probably would be the economic limit.
j This assumes that some of the wells at higher elevations would possibly
j reach depths of about 700 to.900 feet. The water in storage in this
formation has been estimated to be 4 percent of the saturated thickness.
lWright Water Engineers estimates that the recharge to the MaroonFormation
L1 in the Spring Valley area is one -inch per year, or about 300 acre feet
') per year. Much of this 300 acre feet of annual recharge eventually
reaches the lower Spring Valley aquifer (Area A) via springs and under-
i
J ground flow. If this water were intercepted by wells, the main aquifer
would receive proportionally less water.
'i
,i The exact relationship of the water in the Maroon Formation to area
springs cannot be evaluated using presently available data. It should
l
be assumed, however, that large-scale development and subsequent heavy
jpumping would affect the flow of some of the springs.
Properly constructed and located septic systems in most parts of
Area C should have no significant effect on groundwater quality within
the Maroon Formation. In localities where there is evidence of faulting,
such systems should not be permitted.
BIBLIOGRAPHY
U.S. Geological Survey, Geology of Glenwood S rin s Quadrari le and
Vicinity, Northwestern Colorado, Bulletin 1142-J, 1963.
Colorado Geological Survey, Roaring Fork and Crystal Valleys: An
Environmental and Engineering Geology Study, Environmental Geology
No. 8, 1974,
State Engineer's. Office, List of Registered Wells, 1975.
U.S. Dept. of Health, Education, and Welfare, Manual of Septic Tank
Practice, Public Health Service Publication No. 57. 1957.
U.S. Dept. of Agriculture, Soil Conservation Service, Soils and Septic
Tanks, Agriculture Information Bulletin 349, March, 1971.
Wright -McLaughlin Engineers, Roaring Fork River Basin Water Quality
Management Plan, May, 197
Mallory, William W., The Eagle Valley Evaporite, Northwest Colorado -
A Regional Synthesis, U.S. Geological Survey, Bulletin 1311-E,
1971.
Wymore, Ivan F., Estimated Average Annual Water Balance for Piceance
and Yellow Creek Watersheds, Colorado State University Environmental
Resources Center, Technical Report Series No. 2, August, 1974.
Myers, J. Stuart, Evaporation From The 17 Western State, U.S. Geological
Survey Professional Paper 272-D, 1962.
Miller, J.F., Frederick, R.H
Frequency Atlas of the
U.S. Dept. of Commerce,
and Tracey, R.J., Preci
ion -
DEFINITIONS AND CONVERSION FACTORS
DEFINITIONS
cfs - Cubic foot per second - a rate of flow
gpm - Gallons per minute - a rate of flow
AF - Acre foot - a volume of water
equal to 1 acre covered
with 1 foot of water
CONVERSIONS
1 cfs 449 gallons per minute
1 cfs = 646,300 gallons per day
1 cfs = 1.98 acre feet per day
1 AF = 43,560 cubic feet
1 AF = 325,900 gallons
EXHIBIT "6"
water resources
-I prepared by:
wright water engineers, inc.
glenwood sprit -cgs, colorado
march -issa
C
CHEYENNE OFFICE
3120 HENOERSON DRIVE
CHEYENNE, WYOMING 82001
DENVER OFFICE
2420 ALCOTT BTREET
DENVER, COLORADO W211
rl
WRIGHT WATER ENGINEERS, INC.
ENGINEERING CONSULTANTS
P.O. BOX 219
GLENWOOD SPRINGS, COLORADO 81602
(303) 945-7755
March 21, 1983
Mr, Hal Terrell
Spring Valley Holding Co. Ltd.
4000 115 Road
Glenwood Springs, CO 81601
Mr. Robert Sternberg
rl Sternberg, Alley & Kreger, Inc.
J 815 57th St.
Kenosha, WI 53140
Gentlemen:
KENNETH R. WRIGHT
WILLIAM L. LORAN
RICHARD D. JOHNSON
MARILYN M. STOKES
FRANK J. TRELEABE
LEO M. EISEL
WILLIAM H. SEWS
GARY L BEACH
WILLIAM S. DeOREO
The attached report is an analysis of the water resource opportunities
associated with the proposed Spring Valley Holding Company Planned Unit
Development in Garfield County, Colorado. The report estimates the ulti-
mate water requirements for the proposed P.U.D. and presents recommendations
on how the resource can be developed to meet the ultimate needs of the
development.
In 1977 Wright Water Engineers prepared a report entitled "Spring
Valley Water Resources and Water Rights". That report was general and of
a reconnaisance nature. Since that report was written, additional hydrologic
data has been collected and a high production test well has been completed
on the ranch property. This report has more specific information about
the area and concentrates on the needs of the proposed development - which
in this report is called Spring Valley Ranch. We have also tried to avoid
repeating much of the background information that was contained in the 1977
report.
Based on our knowledge today, we believe that Spring Valley Ranch
can develop a high quality water supply to meet its ultimate water re-
quirements. To "prove" and develop the most cost effective system, it
will take additional groundwater exploration work and careful planning.
it has been a pleasure working with you on this project. If you
have any questions, please do not hesitate to contact us.
Very truly yours,
WRIGHT WATER ENGINEERS, INC.
By W Fz: /,-a/,
William L. Lorah, P.E.
Vice President
WLL:ep
cc: Scott Balcomb
821-071.010
TABLE OF CONTENTS
l Letter of
Transmittal
I Table of Contents
J
Section I
INTRODUCTION
PAGE
Section II
WATER REQUIREMENTS
1-1
Section III
HYDROLOGY
II -1
F
,l
Water Quality
III -1
l Section IV
GROUNDWATER.
III -5
rJ
Introduction
IV -1
Geology
IV -1
Development of Groundwater by Wells
Waiver
IV -1
Quality
IV -3
Section V
WATER RIGHTS
IV -4
L �
Introduction
V-1
-�
Depletion to the Colorado River
Spring Valley Water Rights
V-1
V-1
Lake Springs Ranch Augmentation Plan.
Spring Valley Reservoir
V-2
V-6
`1
Basalt Water Conservancy District
Spring Valley Ranch
V-6
V-6
,1
Water Rights
V_7
Section VI
CONCLUSIONS
Bibliography
Map
Spring Valley Ranch Water Resources Map
Vi -1
Back of Report
1
j
LIST Of TABLES
TABLE
PAGE
II -1
EQR Tabulation for Spring Valley Holding
Ltd.
II.-2
II -2
Irrigation Water Requirements for Spring
Valley
II -3
1
1
Ranch
II -3
Spring Valley Ranch Water Requirements
II -4
II -4
Spring Valley Ranch Consumptive Use Water
Requirements
II -6
J
III -1
Water Quality, Spring Valley Ranch
III -6
V-1
Decreed Water Rights in the Spring Valley
Area
V -3,V-4
SECTION I
ll INTRODUCTION
I
Spring Valley Holding Company Ltd. currently controls about 5800
,l acres of land in the Spring Valley area located about five miles southeast
of Glenwood Springs, Colorado. The Company proposes a Planned Unit
Development (P.U.D.) for this land that would ultimately have more than
2,700 dwelling units, plus other development amenities including a 36 -hole
golf course.
This report estimates the water requirements for proposed development
and analyzes the water resources and water rights aviilabile to Spring
Valley Ranch. Recommendations are made on how to develop the physical
water supply to meet the ultimate needs and how to use the ranch's water
rights to the best advantage.
The Spring Valley area has a unique and valuable water resource -
I) the Spring Valley aquifer (described in Section IV). This water source,
which can be used by means of wells, can provide a good, high quality,
l water supply for a substantial amount of development in the Spring Valley
area.
The reliable annual water yield of the Spring Valley area, including_
surface and groundwater sources, is believed to be in excess of 1,600
acre-feet of water.
Once man has diverted water from any Spring Valley water source, be
it by wells, springs or surface diversions, a part of the seater will be
evaporated into the atmosphere and part of it will return to the stream
system, or local aquifer. In Spring Valley, it is important how this
"unused" tater is returned to the hydrologic system. If the return water
(e.g. wastewater treatment effluent, or irrigation return flow) is not
returned to the Spring Valley area, then the depletion of the resource
7
rlJ
r� SECTION I
l INTRODUCTION
T
Spring Valley Holding Company Ltd. currently controls about 5800
acres of land in the Spring Valley area located about five miles southeast
of Glenwood Springs, Colorado. The Company proposes a Planned Unit
rI Development (P.U.D.) for this land that would ultimately have more than
2,700 dwelling units, plus other development amenities including a 36 -hole
golf course.
This report estimates the water requirements for proposed development
and analyzes the water resources and water rights availabile to Spring
Valley Ranch. Recommendations are made on how to develop the physical
water supply to meet the ultimate needs and how to use the ranch's water
rights to the best advantage.
The Spring Valley area has a unique and valuable water resource
the Spring Valley aquifer (described in Section IV). This water source, -
which can be used by means of wells, can provide a good, high quality,
crater supply for a substantial amount of development in the Spring Valley
area.
The reliable annual water yield of the Spring Valley area, including
surface and groundwater sources, is believed to be in excess of 1,600
acre-feet of water.
Once man has diverted water from any Spring Valley mater source, be
it by wells, springs or surface diversions, a part of the water will be
evaporated into the atmosphere and part of it will return to the stream
system, or local aquifer. In Spring Valley, it is important how this
"un used" water is returned to the hydrologic system. If the return water
(e.g. viastcwater treatment effluent, or irrigation return flow) is not
returned to the Spring Valley area, then the depletion of the resource
1-2
is equal to the amount diverted. If, on the other hand, the unconsumed
water is returned to Spring Valley, then the depletion to the Spring Valley
water system is only that water which is evapotranspired or consumptively
used. Therefore, it can be concluded that hater exported from Spring
Valley for development purposes has a greater impact on the Spring Valley
water supply than the equivalent amount of water used in and returned to
the Spring Valley water systema
SECTION II
WATER REQUIREMENTS
t
A municipal or recreational development must have a firm dependable
water supply every year to meet its basic demands. This is unlike the past
agricultural needs of the Spring Valley basin which could tolerate some
water shortages every few years and still remain as a viable agricultural
area. The development's water requirements must be met even under the most,
adverse hydrologic conditions.
planning For
_ p g purposes, the ultimate nater requirements were estimated
from data that was provided to Wright Water Engineers by the project's
j planners, Sternberg, Alley and Kreger, Inc.
l" For municipal type water supply systems, it is convenient to utilize
i
a common water requirement unit. This is especially useful when developing
the legal rights in Water Court since the decree is for an amount of water
and not for a specific number of different types of units. It provides
flexibility for future modifications of the development.
For Spring Valley Ranch we .have chosen the "EQR" (Equivalent Residential
Unit) as the basis for estimating the municipal water requirements. One
EQR for Spring Valley Ranch is assumed to provide full time occupancy for
2.75 people. A multifamily unit is assumed to support 2.25 people. Each
EQR is assumed to require 275 gallons per day for in-house use. In addition,
each EQR is assume to have 1500 square feet of lam or greenbelt irrigation.
Table II -1, entitled "EQR Tabulation for Spring Valley Holding Ltd."
presents the total municipal EQR requirements for the planned development
This table assumes that all single family homes are occupied by one owner with
no rental privileges. All multifamily residential units are two bedroom
units with one bath per unit. The motel and hotel complexes will contain
rooms having not more than two bed spaces per rental unit.
1
11-2
TABLE II -1
EQR TABULATION FOR SPRING VALLEY HOLDING LTD.
1 PLANNED NO. OF UNITS PLANNED EQR
Residential Units 1150 @ 1 EQR/unit 1150
Multifamily Units 1600 @ .82 EQR/unit 1312
Resort Hotel Units 300 @ .3 EQR/unit 90
I' Retail 100,000 sq. ft. @ .5 EQR/1000 sq. ft. 50
Office 50,000 sq. ft. @ .8 EQR/1000 sq. ft. 40
rJ TOTAL EQR, 2642
In calculating the irrigation requirements for Spring Valley Ranch
we have adapted the Glenwood Springs climatological data and adjusted it
� for the elevation in Spring Valley. The average year irrigation consumptive
,
use (the amount of irrigation water that is evapotranspired to the atmosphere)
was estimated using the 1931-60 (30 year) normal monthly precipitations
A and temperatures, while the dry year irrigation consumptive use was estimated
utilizing the 1977 data. With a full irrigation supply, the monthly ir-
rigation consumptive use values for grass in the Spring.Valley area are pre-
sented in Table II -2. Also presented in Table II -2 is the estimated irrigation
'i water requirements assuming a 70%irrigation efficiency.
j
!� Table II -3, entitled "Spring Valley Ranch Water Requirements",
presents the estimated water needs for 2642 EQR, the golf course and other
.J needs. The golf course is assumed to have 150 acres under irrigation. The "
reservoirs for this development plan are assumed to have a surface evapora-
tion equivalent of 20 acres. The total water requirements for this portion
of the project are estimated at 1371 acre-feet in an average year. A dry
year would require approximately 20% more water.
II -3
TABLE II -2
IRRIGATION WATER
REQUIREMENTS FOR SPRING
VALLEY RANCH
l
DRY YEAR
AVERAGE YEAR
CONSUMPTIVE USE
CONSUMPTIVE USE
1 MONTH
AF/Ac
AF/Ac..... .
April
.18
.04
L�
May
.28
.19
June
.48
.34
'!
July
.42
.39
August
.40
.29
September
.22
.17
October
614
.05
l
J ANNUAL
2.12
1.47
J
APPLICATION REQUIREMENTS (70.%'Efficiency)
"1
DRY,YEAR
AVERAGE -YEAR
MONTH
REQUIREMENT
REQUIREMENT
J
April
.26
.06
May
.40
.27
June
.69
.49
L t July
.60
.56
r
August
.57
.41
September
.31
.24
October
620
.07
ANNUAL
3.03
2.10
1d
II -4
TABLE II -3
SPRING VALLEY RANCH WATER REQUIREMENTS
r1
(Values
in Acre -Feet)
MUNICIPAL SYSTEM
GOLF COURSE
RESERVOIR
TOTAL WATER
IN-HOUSE
IRRIGATION
TOTAL
IRRIGATION
EVAPORATION
REQUIREMENTS
l
M-
---F2-
T3T__
__(4_T_
__F5 T—
__F6 T—
1 Jan
69
69
2
71
l Fe.
62,
62
2
64
1
Mar
69
69
2
71
Apr
67
5
72
9
2
83
rJ
May
69
24
93
41
5
139
June
67
44
111
74
10
195
July
69
50
119
84
11
214
Aug
69
37
106
62
8
176
`J
Sep
67
22
89
36
5
130
` Oct
69
6
75
11
2
88
Nov
67
67
2
69
Dec
69
69
2
71
ANNUAL
AVERAGE 813 188 1001. 317 53 1371
NOTES: (1) 2642 EQR; 275 gpd/EQR
(2) 2642 EQR; 1500 sq. ft. per unit irrigation (90 acres total)
(3i (1) + (2)
(4) 150 acres, 70% efficiency
(5) Assume equivalent of 20 acres of irrigation consumptive use, or
2 AF/mo. whichever is greater
(6) (3) + (4) + (5).
1
II -5
Table II -4 presents the estimated ultimate future consumptive use
requirements for the 2642 EQR, golf course and other needs. It is assumed
that 2442 EQR's will be on a central collection and wastewater treatment
,) system and that the depletion will be 5% of the water diverted for in-
house use. Further, it is assumed that 200 EQR will be serviced by
'j individual septic systems and that the depletion will be 150 of the water
1 diverted for in-house use. Lawn and golf course irrigation is assumed
,7 to be 70% efficient. The total future consumptive use for this portion
j of the development will be about 454 acre-feet in an average year.
Effluent from the wastewater treatment system can be, and probably
should be, used for irrigation of the golf course and open space areas.
NOTES: (1) 5% of requirements for 2442 EQR + 15` of requirements for 200 EQR
(2) 90 acres (no lag time estimated for return flows)
(3) (1) + (2)
(4) 150 acres
(5) Assume equivalent to 20 acres of irrigation consumptive use
(6) (3) + (4) + (5).
II
-6
}
TABLE II -4
SPRING
VALLEY RANCH
CONSUMPTIVE USE WATER
REQUIREMENTS
(Values
in Acre -Feet)
TOTAL
MUNICIPAL SYSTEM
GOLF COURSE
RESERVOIR
CONSUMPTIVE USE
,1
IN-HOUSE
IRRIGATION
TOTAL
IRRIGATION
EVAPORATION
REQUIREMENTS
Jj(1)
7-F2 T-
TT
-_74
�-
�-
Jan
4.0
4.0
2
6.0
Feb
3.5
3.5
2
5.5
Mar
4.0
4.0
2
6.0
Apr
3.9
3.5
7.4
6.3
2
15.7
May
4.0
16.8
20.8
28.7
5
54.5 -
' June
3.9
30.8
34.7
51.8
10
96.5,
July
4.0
35.0
39.0
58.8
11
108.8
Aua
4.0'
25.9
29.9
43.4
8
81.3
i
Sep
3.9
15.4
19.3
25.2
5
49.5
Oct
4.0
4.2
8.2
7.7
2
17.9
Nov
3.9
3.9
2
5.9
Dec
4.0
4.0
2
_6^0
ANNUAL
47.1
131.6
178.7
221.9
53
453.6
NOTES: (1) 5% of requirements for 2442 EQR + 15` of requirements for 200 EQR
(2) 90 acres (no lag time estimated for return flows)
(3) (1) + (2)
(4) 150 acres
(5) Assume equivalent to 20 acres of irrigation consumptive use
(6) (3) + (4) + (5).
1
SECTION III
HYDROLOGY
The proposed 5,800 acre Spring Valley Ranch P.U.D. is located.
1 mostly on southwestern facing slopes that range in elevation from 6,600
feet to 9,400 feet. Annual precipitation varies with elevation - with
the lower areas receiving in the range of 15 to 20 inches and the higher
elevations 25 to 30 inches in an average year. More than half of the
'J precipitation falls in the form of snow. Drought year precipitation
J can be as low as 30% of normal precipitation. Local urographic effects
,i may cause the precipitation in the lower Spring Valley area to be quite
different than in areas along the Colorado River and Roaring Fork River
just a few miles away.
i
,i
Average annual gross open water surface evaporation is estimated to
be.32 inches per year. Net.lake evaporation ranges from 12 to 17 inches
per yearA n the valley bottom., See Section II for evapotranspiration
estimates.
Vegetation in this area ranges from hay and _grain fields in the valley
,l floor to scrub oak and sage brush cover in most of the basin. A few areas
of pinon and juniper are found, mostly at elevations below 7000 feet'.
j Conifer and aspen growth occurs at the higher elevations of the basin.
The _proposed development, which covers 9 square miles, lies in three
drainage basins. Only one of these basins has any significant surface
runoff.
The smallest drainage basin on the ranch has an area of 0.6 square
miles and drains north to the Colorado River. The surface runoff from
the ranch flows 'into Bear Creek and Deadman Creek. Both are Very steep,
small (less than 3 square miles) and tributary to the Colorado River.
ILI-2
The eastern 0.2 square miles of the ranch drain east to Mesa Creek,
which is a tributary.of Cattle Creek. 3.0 square miles in the southeast
Portion of the P.U.D. drain south to Fisher Draw also a tributary of
Cattle Creek, which in turn is tributary to the Roaring Fork River.
The only portion of the P.U.D. that has any significant surface flow
is the 5.3 square miles of the ranch that are tributary to Landis Creek
and Spring Valley. The ranch makes up 53" of this basin - measured at the
north end of Spring Valley at the head of Red Canyon.
l The only major drainage course in Spring Valley is Landis Creek.
J The headwaters of Landis Creek are located on the northeast part of the
ranch at elevations above 9,000 feet. The Landis Creek drainage then
opens to the southwest for about 3 miles, where it enters the low area of
Spring Valley. Little, if any, Landis Creek surface flow ever reaches
`j Red Canyon.
Landis Creek has a total tributary drainage area of 4 square miles
before it enters the valley bottom. The upper area, about .5 square
`i miles, is naturally tributary to the Hopkins Reservoir. The Hopkins
Reservoir (see map plate 1) was constructed around 1909and is the only
major man made reservoir in the upper Landis Creek basin.
:i
The reservoir is located off the mainstream of Landis Creek at an
,J elevation of about 9000 feet. ;The natural. tributary drainage area above
the reservoir is about 320 acres. An additional 220 acres of tributary
�i
drainage area can -be collected and diverted through the Hopkins Feeder
Ditch. The runoff that can.be collected by Hopkins Reservoir is:
i
AVERAGE YEAR DRY YEAR
Natural basin 180 AF. 90 AF
Additional collection from
Feeder Ditch 120 AF 50 AF
Total 300 AF 140 AF
1 These estimates should be considered preliminary until actual streamflow
data can be collected for this upper area.
1 Below Hopkins Reservoir there are several springs that enter Landis
Creek, the most important of which is Red Slide Springs (see attached
rl map). This spring has a base flow of 50 to 60 gpm (based on 13 observations
J from August 18, 1982 to February 10, 1983).
-� The maximum flow of Landis Creek occurs at about an elevation of 7,900
.� feet where the tributary area is 3.1 square miles. This is the point where
the Hopkins Ditch has historically diverted all of the Landis Creek flow
to irrigate land on the ranch. The flaw of Landis Creek at the headgate
is estimated as follows:
AVERAGE YEAR DRY YEAR
L� Winter base flaw, Sept.=March 0:5 cfs 0.4 cfs
Spring runoff, April 4 cfs 2 cfs
'i Summer flows, May -June 1 cfs 0.5 cfs
j Fall low flow, July -August 0.25cfs .2 cfs
rIII Annual Runoff 600 AF 372 AF
it
The above flow estimates are based on limited field data and should
j be considered as preliminary estimates. They are estimates of virgin flow
and do not account for the operation of Hopkins Reservoir. The yield of
r3
Red Slide Spring is- included in the above estimate.
Only during the heaviest snowmelt and summer thunder storms will
the flow of Landis Creek reach the valley floor.
Most of the precipitation that falls in Spring Valley is returned to
the atmosphere through evaporation and transpiration. 'nater can also
leave the Spring Valley basin/aquifer in three other ways. First, diversions
by man; second, by the overflow of water down Red Canyon; and, third, by
groundwater flow to Cattle Creek and the Roaring Fork River.
III -4
At this time it would be difficult, if not impossible, to estimate
rl the groundwater flow out of the area. However, it is believed that several
J springs and seeps tributary to Cattle Creek and the Roaring Fork River
have their waters originating in the Spring Valley alluvium.
The only natural surface flow out of the basin occurs each spring
during the snowmelt runoff period which normally occurs in March, April
and May. The flow is artifically controlled by a dam at the head of Red
lCanyon.
Before the area was opened for settlement, the north end of the Spring
Valley was covered with a natural lake that held several hundred acre-
feet of water. One of the early settlers (Forker) dug a channel from the
lake to Red Canyon and drained the lake. That channel can still be seen.
Currently, there is a 10 foot high dam at the lower end of the channel
which Garfield County built to protect the County road from high spring
flows.
Since 1979 Wright Water Engineers has been estimating the annual flows-
from Spring Valley down Red Canyon by useof a 3 foot Parshall flume below
the dam. The measured flows are:
YEAR FIRSTDAY LAST DAY ANNUAL FLOW
1979 March 20 April 10 440 acre-feet
1980 - March 20 May 25 852 acre-feet
1981 March 18 April 2.1 177 acre-feet
j 1982 March 6 May 23 284 acre-feet
In addition to the Red Slide Spring in the upper Landis Creek area,
three other springs were monitored from August 18, 1982 to February 10,
J 1983. These springs are shown on the attached map. Their 1982-83 winter
J base flows were as follows:
1�
1
III -5
I� Hopkins Spring No. 1 15-20 gpm
Hopkins Spring No. 2 40-60 gpm
Homestead Spring 8-10 gpm
The above springs are in the Fisher Draw surface tributary basin.
However, dater from these springs, when not being used for irrigation,
percolate into the ground normally within a mile of the spring and probably
become tributary to the Spring Valley aquifer.
There are numerous springs along the northeast edge of the. Spring Valley
`j aquifer - see map. The largest of these, the Quigley Spring, flows year
JJ around at about 0.25 cfs (110 gpm) and feeds the lakes in the Lake Springs
Ranch Subdivision. The Cox Spring, just east of the Spring Valley Ranch,
is reported to flow as high as 0.5 cfs. The B. R. Hopkins Spring has been
used since the 1930's as a domestic supply.
A monitoring program has been set up to measure the flow of Landis
Creek, several springs and the flow down Red Canyon. This program will be
valuable in refining the preliminary estimates of tinter availability in
l Spring Valley, and can be used as a tool for developing an optimum manage-
ment strategy for the limited water resources in the area.
NATER QUALITY
`j Water used at the Spring Valley Ranch for municipal purposes must
`1 meet Minimum quality standards established by the Colorado Department of
Health and the Environmental Protection Agency. The Standards relate to
,I the chemical, bacterological, radioactive and general health and safety
,+ criteria. Other secondary standards relate to consumer acceptance (taste,
color, smell, etc.) and reasonable economy (hardness). -
Table III -1 presents .these standards and results of water quality
samples taken from Spring Valley Well No. 1, Red Slide Spring, and the
Hopkins Spring 12. It also presents water quality data from the Dear Gulch
Spring located on U. S. Forest Service land to the northwest of the Ranch,
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III -7
Table III -1 presents data that indicate the Spring Valley Ranch
springs and wells will yield water of adequate water quality to meet
State and federal potable water quality standards. If water is taken
from wells and/or springs, it appears that the only treatment needed
will be chlorination.
State approval will be needed for each water source used to supply
the municipal system:
`j
I
,i
`i
�i
:i
i
SECTION IV
i
GROUNDWATER
INTRODUCTION
1 The importance of groundwater is implied in the name, Spring Valley.,
It has long been known that the groundwater in the area is a valuable
resource. Springs in the area have been used for irrigation since 1882.
The extent of the aquifer that makes up the valley floor was not know v or
1 even explored, until 1967 when Colorado Mountain College drilled 4 wells.
1 Since then over a dozen wells and exploratory holes have been drilled.
'i Data from these wells has expanded our knowledge of the main aquifer in
the area. However, recent drilling has confirmed that the main aquifer is
- not as simple a structure as originally thought. Additional drilling and
pump testing will be required to better estimate long term effects on the
resource that would be caused by long term pumping.
j
GEOLOGY
j In the Spring Valley area, four major geologic units outcrop. In
decending order they are: the recent age younger alluvial and colluvial
j deposits in the valley floor, the pleistocene age lava flows, the Permian
Age Maroon Formation and the Pennsylvania Age Eagle ,Valley Evaporite..
The Eagle Valley Evaporite consists predominantly of interbedded
gypsum and dark grayish shale, with add mixtures of silt and salt. The
formation has 'a strong suseeptability to erosion and solution (it has
often been; locally referred to as "gyp rock" or "sugar dirt"). The quality
of groundwater which can be produced from the Eagle Valley Evaporite
Formation is very poor. Often this water is very high in total dissolved
solids and sulfate and is generally considered unfit for human consumption
In many cases the water from this formation may not even be suitable for
irrigation purposes.
'ii
l
IV -2
Immediately above the Eagle Valley Evaporite Formation is the Maroon
Formation. Spring Valley is cut into the Maroon Formation which outcrops
along the margins of the valley. The Maroon Formation is characterized
by the reddish arkosic sandstone with interbeds of siltstone, claystone,
and some conglomerate. This unit is generally calcarious and moderately
resistant to erosion. The total thickness of this formation in the Spring
l`Valley area is unknown. The exposed thickness near Glenwood Springs
is nearly 3,000 feet. Groundwater found in this formation is generally
of acceptable quality, but wells tend to yield only small amounts of water,
less than 10 gallons per minute. There is a reasonable chance of obtaining
groundwater for individual domestic. use in this formationproviding
enough saturated thickness can be penetrated. Generally, a well penetrating
40 to 50 feet of saturated Maroon Formation will provide enough water for
inhouse use.
1 Next in the series of geologic units are the Basalt lava flows. These
flows form a large percentage of the surface geology on the Spring Valley
1 Ranch property: These flows consist of dark gray olivine Basalt.
J The •formation is hard and commonly viscular exhibiting columnar joints
in many places. The Basalt flows are commonly fractured allowing for a
great amount of secondary porosity. The primary porosity in the Basalt
irJ is very low, however, due to the jointing and fracturing contributing to
secondary porosity, this yet untapped resource may yield large quantities
of groundwater.
The fourth unit is the more recent alluvial deposits found in the
valley bottom. This is the aquifer- that most of the area`sexisting high
yield bells are drilled into. They are characterized by the unconsolidated
rock waste which may be moderately sorted. This material is deposited by
streams but also may contain older lake deposits, adding intermixed clays
and silts. The thickness of the alluvial material in the bottom of Spring
Valley varies from less than a foot at the edges of the valley to probably
over 300 feet near the center of the valley. Development of this unit has
J
IV -3
�. proven more complicated than originally anticipated. The old lake deposits
l have trapped many of the clays and fine silts near the center of the
valley which has required wells using stainless steel well screen and gravel
packing.
DEVELOPMENT OF GROUNDWATER BY WELLS
Groundwater development on the Spring Valley Ranch appears to be the
only way to develop a cost effective,high yielding, municipal water source.
r, Once adequate aquifer data has been obtained, groundwater development can
proceed in a phased method. One development scenario might be to first
Fl develop the ranch's springs, then add municipal type wells on an as needed
J basis.
Besides the valley floor alluvium, the Hopkins Homestead area has.
extensive basalt flows that appear to offer a good groundwater potential.
If wells are proven viable in the area, it could reducetheoverall capital
cost (and annual energy costs) for the municipal water system. .We recommend
a series of exploratory test holes in this area.
J Wright Water Engineers has selected 6, potential well sites for the
J municipal system (see map). Spring Valley Ranch has since applied for well
l permits from the State Engineer's Office for conditional water rights -
'' see Section VII.
It is important that the recharge area for any potential municipal
well field be protected against pollution. If waste water effluent is
used to irrigate the golf course, or other areas, caution should be taken
in the location of wells to prevent a direct hydraulic connection between
the recharge and the wells. A test hole drilling program can determine the
probable hydraulic connection and the best location for municipal wells.
IV-4
r] WATER QUALITY
The water quality analysis of the chemical parameters for the Spring
Valley Well No. 1 is shown in Table III-1. The constituents and concentration
limits for ,the primary and secondary drinking water standards are also shown
on Table III-1.
I To our knowledge; groundwater obtained from the existing wells .in
f Spring Valley alluvium do not exceed either the mandatory or the recommended
drinking water standards.
Based on the data available to date, the water quality of the Spring
Valley aquifer is adequate for a potable water supply. For a complete
analysis, water quality samples should be analyzed for radionuclides and
pesticides.
SECTION V
WATER RIGHTS
INTRODUCTIOPI
In Colorado, water rights are property rights. They are acquired
under the doctrine of prior appropriation - first in. time is first in right.
When claimed, they are normally formalized by a Court decree, A discussion
of Colorado Water Law and its complex administration is beyond the scope
of this report.
r�
The administration and use of the water rights in Spring Valley has
been considered as being isolated from the rest of the water rights in
the Colorado River basin. This means that histo:-i.cally the water users
in Spring Valley have been primarily concerned a out competing with their
neighbors for outer instead of worrying about wrater users further down-
stream on the Roaring Fork and Colorado Rivers.
This isolation is not likely to continue as water resource develop-
ment continues in Spring Valley and the rest of the Colorado River basin
above Grand Junction.
DEPLETION TO THE COLORADO RIVER
Water originating in the Spring Valley area that is not consumptively
used (by nature or man) eventually finds its way to Cattle Creek, the
Roaring Fork River and the Colorado River. As rn consumes more water from
the Spring Valley water resources, less water gill eventually reach the
Colorado River, e.g. the 'spring sn.00mrelt spills down Red Canyon will be
less and possibly less ground,dater will find its way to the Roaring Fork -
River,
Increased water depletions in Spring Valley may have the greatest
(and possibly only) effect on the Roaring Fork by the reduction of the
historic flows down Red Canyon.
,l •
V -z
J
r� If the new depletions occur from diversions under junior Spring
Valley water rights, senior downstream rights could be injured if the
depletion reduced the amount of water they had historically been able
to divert. We believe that any measurable depletions of this kind is
likely to occur only in the spring time. Historically, all of the dc. -in -
stream water rights have been satisfied in the past in the spring, and
have not been injured. During other seasons we do not believe there would
f be any material injury to downstream users by the expanded development
of Spring Valley's water resources In fact, the water Supply of the
Roaring Fork River could be enhanced if return flow from "exported" Spring
Valley water was not returned to Spring Valley,
Downstream rights that could possibly be injured by the exercise
of junior Spring Valley rights are the conditional "oil shale" rights
if and when they are perfected. To mitigate potential injury to these
rights, we recommend that Spring Valley Ranch acquire Ruedi Reservoir -
water through the Basalt ',dater Conservancy District.
SPRING VALLEY WATER RIGHTS
Table V-1 presents a list of decreed water rights in the Spring Valley
area. The Spring Valley Ranch's water rights are identified with an
asterisk to the left of the priority number. The information in the table
is based on several Sources and may not be complete. We cannot guarantee
the accuracy of all the detail.
i
In addition to these water rights, there are several undecreed, but
perfectly legal, exempt wells. these wells yield less than 15 gpm and
cannot serve more than 3 single family homes. The State Engineer- is
currently not issuing exempt well permits in this area unless the tract
of land the well is to serve is greater than 35 acres.
V-3
M co M
01 01 01 0 00 0 0 0 0 0 NW
N
qq W 0101 mM Mm Mr In tl)
w w g w q q q w q q T m m
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rl V-5
By state law water rights are administered by the State Engineer's
Office. For many years the local Water Commissioner has not been called
;upon to administer any of -the water diversions in Spring Valley. ;The
water users have been satisfied and no one has claimed injury because of
someone else's use of water. For this reason the Water Commissioner has
l not kept accurate records of the water diversions in the area.
If all of the Spring Valley well rights senior to 1976.(the year of
the first Spring Valley municipal right) diverted their full decreed amounts
24 hours a day year around, they would theoretically divert approximately
2,000 acre-feet per year*. .It is our opinion that the actual depletions to
the Spring Valley aquifer because of senior well diversions has more
realistically been about 100 acre-feet per year. The two major users of
the aquifer are Colorado Mountain College and Los Amigos., In the past
the college has diverted less than 50,000 gallons per day during the winter.
Los Amigos, under full development approved by the County, would divert up
to 285 acre-feet per year. Both of these diversions are considered "exporters"
and are Using a wastewater treatment plant that does not return its effluent
to the Spring Valley aquifer.
LAKE'SPRINGS RANCH AUGIIENTATION'PLAN
In 1981 Foster Petroleum obtained a decree for an augmentation plan
(Case W-3571) to serve 220 single family units in the Lake Springs Ranch
P.U.D. The decree quantifies the historic consumptive use of the Van Cleve
(Quigley) water rights (priorities 45, 46 and 121) at 72 acre-feet per year.
The plan allows Lake Springs Ranch to transfer this 72 acre-feet of consumptive
use to its municipal water system by ceasing to irrigate 120 acres of land.
The municipal water supply system for the development consists of:
Lake
Springs
Ranch
Spring
(W-3572)
.44
cfs
Lake
Springs
Ranch
Well A
(W-3573)
200
gpm
Lake
Springs
Ranch
Well B
(W-3574)
200
gpm
Lake
Springs
Ranch
Well C
(W-3997)
200
gpm
* Well permits issued by the State Engineer's Office would limit the yield
to 500 AF/yr.
V-6
SPRING VALLEY RESERVOIR
In 1979 the Water Court granted a conditional water right (W-4007)
for 725 acre-feet for Spring Valley Reservoir. The applicants for the
right were:
L. P. Gas and Appliance Co.
Spring Valley Ranch Ltd.
Colorado Mountain Junior College District
Calvin H. Cox
Foster Petroleum Corp.
rl. Robert W. Chatmas
J James A. R. Johnson
The new 20 foot high dam is to be, constructed near the location of
the existing 10 foot dam. The purpose of the reservoir is to store water
for "municipal, domestic, irrigation, aesthetic, recreational, fish, game
and wildlife propagation, flood control, fire protection,stock water,
augmentation and exchange -
This reservoir may become an important water resource as development
occurs in Spring Valley.
BASALT WATER CONSERVANCY DISTRICT
LJ Most of the Spring Valley Ranch is within the Basalt Water Conservancy
District and therefore pays a mill levy. to support the District. The
original purpose of the District.was to develop the Basalt Project which
was to be engineered and built by the Bureau of Reclamation. The general plan
j of the project was to take plater out of Ruedi Reservoir and irrigate lands`
within the'District's boundaries, and to provide domestic and municipal
water. The originalplans called for water delivery (from Ruedi and Cattle
Creek) to the Spring Valley area via a new canal - named Landis Canal. It
is extremely unlikely that the project will be built as originally designed.
1
l V-,
J Currently, the District is marketing some of its water rights to people
within the District. They are also selling water out of Ruedi Reservoir
which they, have contracted for from the U. S. Bureau of Reclamation.
Spring Valley Ranch cannot rely on the Basalt Water Conversancy District
to provide physical water to Spring Valley. However, the District can
provide water rights "protection" for Spring Valley water users if a water
right call ever comes from the Roaring Fork or Colorado Rivers.
SPRING VALLEY RANCH WATER, RIGHTS
The Spring Valley Ranch, under the ownership of Hopkins, acquired
all of the senior irrigation ditch rights decreed off of Landis Creek.
These rights (Kendall-Stricklett, Landis 1, Landis 2, O.K., Forker Gibson,
Frank and Chapman) totalling 10.4 cfs, were consolidated and diverted in
L� one ditch by Hopkins for many years. This consolidation was formalized
in Case 81 -CW -193. In addtion to the direct flow rights, the ranch utilized
the Hopkins Reservoir which was built around 1910 and decreed for 119.6
arse -feet of storage. This reservoir normally filled during spring runoff
and released water to the Hopkins Ditch when the flows in Landis Creek
Idropped off in mid summer. At least two undecreed operational and stock
ponds were filled by the Hopkins Ditch. -
-j
According to Pete Cabrinah, who operated part of the ranch for many
years, up to 500 acres of the ranch has been irrigated at one time or
another. Based on an analysis of a 1962 aerial photograph, and our knowledge
of the ranch, we believe that ,up to 300 acres have been farmed and irrigated
in recent years.
V-8
Spring Valley Ranch has historically controlled and used all of the
Landis Creek flow during the summer months - 400 acre-feet and more per
year. The depletion to the Spring Valley water system is estimated to be
at least 200 acre-feet per year.
l
The Spring Valley Ranch development will, in our opinion, be able to
divert its entire ultimate water requirements and not injure other vested
water rights. To accomplish this, it may be necessary to obtain a decree
j for an augmentation plan which would allow the wells to pump if they are
f ever out of priority by relying on releases from Hopkins Reservoir, a transfer
of the senior irrigation water rights, or by using contract water from the
Basalt Water Conservancy District.
The ultimate water right strategy for Spring Valley Ranch should be -
guided by the development's special water council.
SECTION VI
CONCLUSIONS
i
Following are some major conclusions that have been reached concerning
the development of a water supply for Spring Valley Ranch.
1. Ultimate development of the Spring Valley Ranch P.M. will
require the diversion of 1371 acre-feet of water in an average
'] year. An additional 250 acre-feet will be required to meet
J the total irrigation demands (90 acres of lawn and greenbelt
and 150 acres of golf course) in a dry year.
2. 454 acre-feet of the 1371 requirement will be consumptively
used (evaporated to the atmosphere). That portion which is
not consumptively used can be either: 1) reused, 2) returned
J to the Spring Valley aquifer, or, 3) returned to the stream
system outside of the Spring Valley aquifer.
At ultimate development most, if not all, of the golf course
irrigation can come from properly treated effluent from the
1 wastewater treatment plant.
j If the municipal effluent (ultimately 700+ acre-feet per year)
is not reused by the project or kept within the basin, then the
project's depletions to Spring Valley would be 1200 acre-feet
instead of 454 acre-feet.
` 3. There is approximately 750 acre-feet of surface water (including
springs) physically available to the ranch in an average year.
In a dry year this supply is less.
l ' Additional water can be developed from pumping water from
the Spring Valley aquifer. When wells are developed and
large amounts of groundwater are taken, it is believed that
4. The Spring Valley alluvial aquifer has been proven to be a
reliable high yielding water source and is believed to be
extensive. Its total capacity, how it is recharged, how its
confining layers affect vertical movement are all still un-
known and thus its ultimate safe yield unknown.
The extent of a groundwater resource may initially be difficult
to define and drilling programs appear:expcnsive, but good
aquifer data is essential to the development of a municipal
supply. Well placement and well efficiency play a key role
in the economics and the reliability of the groundwater system.
When compared to the next alternative - the treatment of the
surface water on the Spring Valley Ranch, the capital and the
operational costs of a groundwater system are less. It would
be necessary to build both a surface water storage reservoir
and a water treatment facility for the surface water system,
both at considerable capital cost.
5. Pumping of new wells may reduce the flow of springs in the area.
It is important to develop a good understanding of the geo-
hydrology and be prepared to mitigate any injury to a user of
a spring if, in fact, the spring flow is reduced by new wells.
1
VI -3
6. Water sources in the basin should be continuously monitored
and measured. Specifically, flow readings should be made
on the springs, Landis Creek (at the Hopkins Ditch headgate)
land on the spring spill down Red Canyon. If possible, long
term accurate flow readings of the springs near the ranch
property (e.g. B. R. Hopkins Spring, Cox Spring, Quigley
lI Spring, etc.) should be monitored.
1 7. Basalt Water Conservancy District water should be obtained
r] so that the ranch has a means of mitigating downstream (Colorado
River) injury.
1 8. Other water users in Spring Valley will likely follow with
interest the development of the ranch's water resources. We
believe that there is sufficient water available to meet all
of the current development that depends on the.Spring Valley
:J aquifer. There is potential for a "water fight" in Spring
Valley due to the limited knowledge of the extent of the
groundwater aquifer. However, with the knowledge currently
available, we believe that the resource could be jointly
monitored and managed (i.e. let the water table of the.aquifer
fall in a dry year - but not allow mining on a long term basis)
to the best interest of those who currently hold water rights
11 in Spring Valley.
ii9: An overall water resource management plan for Spring Valley
may be advantageous to Spring Valley Ranch. Whether it is
accomplished by way of a special district (e.g. Sanitation
;I District) or other means, it may be important to develop a
,I cooperative data base, especially relating to groundwater
levels. This data base of monitored wells and springs could
be used as a management tool and prevent unnecessary litigation.
j�
BIBLIOGRAPHY
i
�+
1.
U. S. Geological Survey, Geolo y of Glenwood S rings Quadran le and
Vicinity, Northwestern Co orado, Bul etin 1142-J, 1963.
2.
Colorado Geological Survey, Roaring Fork and Crystal Valleys: An
Environmental and Engineering Geology Study, Environmental Geology
No. 8, 1974.
3.
State Engineer's Office, List.of Registered Wells, 1981.
j
4.
Wright -McLaughlin Engineers, Roaring Fork River Basin Water Quality
llllit
Management Plan, May, 1974.
5.
Mallory, William W., The Eagle Valley Evaporite, Northwest Colorado -
l
A Regional Synthesis, U. S. Geological Survey, Bulletin 1311-E, 1971.
6.
Miller, J. F., Frederick, R.H., and Tracey, R.J., Precipitation -
Frequency Atlas of the Western United States, Volume III - Colorado,
U. S. Dept..of Commerce, N.O.A.A., 1973.
7.
Wright Water Engineers, Inc., Spring Valley Water Resources and Water
Rights, May, 1977.
8.
Weaver, Michael T., Himmelreich, John W. Jr., Lincoln DeVore, Geology
and Soils Report, November 30, 1981.
9.
Wright Water Engineers, Inc., Water Resources Analysis for the Hopkins
Ranch, February 8, 1977.
I
10.,
Ninth Judicial District Water Court Records.
1
�l
ll.
U. S. Geological Survey Water Resources Data, Colorado,`Streamflow
Records.
.1
12.
State Engineer's Office, Water Rights Tabulation for Division 5.
l�
Ll
,1
i
CHAPTERS I - VII
for
UPJ EINIMIN TWPIN
E
TI T S TEf��il�
COQ �N@
amdoz VOZRAOQR
C�c�Q oc��d QoUaRg, Q(DUOTQt
SERVICE PLAN
WASTEWATER UTILITY SYSTEM
for
LANDIS SANITATION DISTRICT
GARFIELD COUNTY, COLORADO
McLAUGHLIN WATER ENGINEERS
0139 Ventnor Avenue 2420 Alcott Street
Aspen, Colorado 81611 Denver, Colorado 80211
SEPTEMBER, 1984
Job No. 82-71.00
SERVICE PLAN
WASTEWATER UTILITY SYSTEM
for
LANDIS SANITATION DISTRICT
GARFIELD COUNTY, COLORADO
TABLE OF CONTENTS
Continued
SECTION DESCRIPTION PAGE
I INTRODUCTION
PURPOSE AND SCOPE . . . . . . . . . . . . . . . I-1
STUDY AREA DELINEATION . . . . . I-1
PROPOSED DEVELOPMENT WITHIN STUDY AREA . . . . . I-2
LOAD DESIGN CRITERIA . . . . . . . . . . . . . . . . I-4
II REQUIREMENTS FOR TREATMENT FACILITIES
WATER QUALITY OBJECTIVES . . . . . . . . . . . . . II -1
REGULATORY REQUIREMENTS . . . . . . . . . . . II -2
CLIMATIC AND PHYSICAL REQUIREMENTS . . . . . . . II -2
AESTHETIC REQUIREMENTS . . . . . . . . . . . . . . . II -3
III FORMULATION OF ALTERNATIVE TREATMENT PLANS
GENERAL . . . . . . . . . . . . . . . . . . . . III -1
PRETREATMENT . . .. . . . . . . . . . . . . . . III -1
SECONDARY TREATMENT . . . . . . . . . . . . . III -2
ADVANCED WASTEWATER TREATMENT . . . . . . III -3
SLUDGE TREATMENT, STORAGE AND DISPOSAL . . . . . III -4
TREATMENT ALTERNATIVES . . . . . . . . . . . . . . III -4
IV FACILITIES PLANNING FOR ALTERNATIVE TREATMENT
SYSTEMS
GENERAL . . . . . . . . . . . . . . . . . IV -1
PRETREATMENT WORKS . . . . . . . . . . IV -1
SECONDARY TREATMENT FACILITIES . . . . . . . . IV -2
ADVANCED WASTEWATER TREATMENT WORKS . . . . . IV -6
SLUDGE TREATMENT AND STORAGE . . . . . . . . . . IV -7
SUMMARY OF COST ESTIMATES . . . . . . . . . . . . IV -14
SCREENING OF ALTERNATIVES . . . . . IV -15
RECOMMENDED WASTEWATER TREATMENT SYSTEM . . . IV -17
PHASING OF TREATMENT FACILITY CONSTRUCTION . . . IV -20
V SEWAGE TRANSMISSION SYSTEM
GENERAL . . . . . . . . . . . . . . . . . . . V-1
TRUNK AND OUTFALL SEWERS . . . . . . . . . . . . . V-1
VI EFFLUENT STORAGE AND REUSE SYSTEM
GENERAL . VI -1
REUSE DISTRIBUTION PIPELINE . . . . . . . . . . . . . VI -1
EFFLUENT STORAGE RESERVOIRS . . . . . . . . VI -2
EFFLUENT REUSE SYSTEM COST ESTIMATE . . . . . . . VI -2
SERVICE PLAN
WASTEWATER UTILITY SYSTEM
for
LANDIS SANITATION DISTRICT
GARFIELD COUNTY, COLORADO
TABLE OF CONTENTS
Continued
SECTION DESCRIPTION
VII FINANCING AND OPERATIONS
GENERAL . . . .
CAPITAL REQUIREMENTS . . . . . . . . . . . . . .
INCOME REQUIREMENTS . . . . . . . . .
RATES AND CHARGES FOR SERVICE . . . . . . . .
APPENDIX A
Description of Service Area
APPENDIX B
Site Application for Sewage Treatment Plant
Construction
APPENDIX C
Financing Overview, Prepared by Hanifen, Imhoff, Inc.
PAGE
VII -1
VII -2
VII -2
VII -2
SERVICE PLAN
WASTEWATER UTILITY SYSTEM
l
for
i
LANDIS SANITATION DISTRICT
GARFIELD COUNTY, COLORADO
TABLE OF CONTENTS
Continued
SECTION
TABLE OF FIGURES, DRAWINGS, AND TABLES
PAGE
FIGURE
I -A
LANDIS SANITATION DISTRICT SERVICE Pocket at End of
Section
AREA
TABLE
I -B
PROPOSED DEVELOPMENT . . . . . . . . . .
I-2
TABLE
I -C
SPRING VALLEY RANCH -SALES PROJECTIONS . . . . . .
I-3
DRAWING I -D
SPRING VALLEY RANCH -DEVELOPMENT PLANS . . . . .
I-5
DRAWING I -E
LAKE SPRINGS RANCH -DEVELOPMENT PLANS
I-6
TABLE
I -F
WASTEWATER EQR TABULATION . . . . . . . . . . . .
I-4
TABLE
I -G
WASTEWATER EQR DEVELOPMENT SCHEDULE . . .
1-8
TABLE
II -A
PROPOSED STREAM WATER QUALITY STANDARDS . . . .
II -1
FIGURE
III -A
WASTEWATER TREATMENT ALTERNATIVES
III -5
TABLE
IV -A
PRETREATMENT FACILITIES COST ESTIMATE . . . . . .
IV -2
TABLE
IV -B
ALT. ST -1: CONVENTIONAL ACTIVATED SLUDGE . . . . .
IV -3
COST ESTIMATE
TABLE
IV -C
ALT. ST -2: RELEX PROCESS COST ESTIMATE . . . . . .
IV -4
TABLE
IV -D
ALT. ST -3: ROTATING BIOLOGICAL CONTRACTORS
IV -5
COST ESTIMATE
TABLE
IV -E
ADVANCED WASTEWATER TREATMENT FACILITIES COST
IV -7
ESTIMATE
TABLE
IV -F
EXPECTED SLUDGE QUANTITIES . . . . . . . . . . . .
IV -8
J TABLE
IV -G
THICKENED WASTE SLUDGE FLOWS
IV -9
TABLE
IV -H
CENTRIFUGAL SLUDGE THICKENING COST ESTIMATE . .
IV -9
TABLE
IV -I
AEROBIC DIGESTER DESIGN PARAMETERS . . . . . . .
IV -10
TABLE
IV -J
AEROBIC DIGESTION COST ESTIMATE . . . . . . . . . .
IV -11
j
TABLE
IV -K
SLUDGE STORAGE REQUIREMENTS . . . . . . . . . . .
IV -12
TABLE
IV -L
SLUDGE STORAGE COST ESTIMATE . . . . . . . . . . .
IV -12
TABLE
IV -M
LIQUID SLUDGE TRANSPORT AND APPLICATION SYSTEM .
IV -13
COST ESTIMATE
TABLE
IV -0
COST ESTIMATE SUMMARY FOR SEWAGE TREATMENT
IV -14
" I
ALTERNATIVES
j
TABLE
IV -P
PRESENT WORTH COMPARISON FOR SECONDARY
IV -16
TREATMENT ALT.
DRAWING IV -Q
PRELIMINARY SEWAGE TREATMENT PLANT FLOW . . .
V-20
DRAWING IV -R
PRELIMINARY LAYOUT -WASTEWATER TREATMENT . . .
IV -21
FACILITIES
TABLE
IV -S
PRELIMINARY COST ESTIMATE FOR RECOMMENDED . .
IV -18
WASTEWATER TREATMENT FACILITIES
J TABLE
IV -T
ANNUAL SEWAGE TREATMENT PLANT . . . . . . . . .
IV -22
O&M COST ESTIMATE
DRAWINGS V-A
PROPOSED WASTEWATER TRANSMISSION/TREATMENT/REUSE
SYSTEMS Pocket at End of
Section
TABLE
V -B
TRUNK SEWER SYSTEM COST ESTIMATE . . . . . . . .
V-2
TABLE
`J
VI -A
EFFLUENT REUSE AND STORAGE SYSTEM COST ESTIMATE
VI -3
I-1
SECTION I
INTRODUCTION
PURPOSE AND SCOPE
l It is proposed to develop approximately 6,500 acres of land in the Spring Valley area
j of Garfield County, primarily for residential use.
The purpose of this Report (Service Plan) is to set forth the preliminary designs and
operating economic principles for the sanitary sewage utility which will service the
subject development. The Landis Sanitation District will be formed to establish a quasi-
municipal government body to provide sewage collection and treatment. District formation
wil result in a governmental entity which would govern financing, construction, and
permanent operation of the sewage system.
The scope of the Report includes prediction of sewage flows and preliminary layout of
the collection/transmission sewer system. Practical methods for the treatment and
disposal of the wastewater to be generated within the proposed Landis Sanitation District
are evaluated. The quality and quantity of wastewater expected are estimated and used
as the basis of design for alternative treatment processes. Criteria that must be met by
a successful treatment program are established and recommendations regarding an optimum
treatment scheme are made. A sewage treatment "Master Plan" has been formulated
to coordinate development and utility planning so that treatment facilities can be
constructed in logical and economical phases.
STUDY AREA DELINEATION
Foster Petroleum Corporation is the land owner and developer for Lake Springs Ranch,
which is a Planned Unit Development comprised of about 440 acres of land. Spring
Valley Holding, Limited, owns and plans to develop Spring Valley Ranch which extends
over 6,060 acres. Figure I -A (in pocket at end of chapter) delineates the Sanitation
District's service boundaries. Development requiring wastewater collection facilities
will occur in the Spring Valley drainage basin. Streams in the basin are intermittent in
the upper reaches around and above the development. The basin drains to the Roaring
Fork River through Red Canyon. The description of the proposed District is included
as Appendix A.
I-2
PROPOSED DEVELOPMENT WITHIN STUDY AREA
Information concerning the proposed development within the Landis Sanitation District
was obtained from Foster Petroleum Corporation and Spring Valley Holding, Ltd. This
information was used for the development of waste loading criteria for the wastewater
treatment facilities. Proposed development plans are summarized in Table I -B.
TABLE I -B
PROPOSED DEVELOPMENT
Lake Springs Ranch
Single Family Residences 194
Multi Family Units 16
Spring Valley Ranch
Single Family Residences 1,150*
Multi Family Units 1,620
Resort Hotel 300 Room
Retail Space 100,000 Sq. Ft.
Office Space 50,000 Sq. Ft.
* 200 Single family residences are to have individual wastewater disposal systems.
Other development will include a golf course with associated amenities and community
support facilites (i.e., police and fire stations, schools, etc.).
Development of Lake Springs Ranch is anticipated to start in 1984 with sewage treatment
facilities being required in late 1985. Development of the 210 units at Lake Springs
Ranch is expected to proceed rapidly.
The timing for the development of Spring Valley Ranch is less certain. Sales projections
have been furnished for the 15 years following the initiation of development activities.
These sales projections are summarized in Table I -C.
I-3
TABLE I -C
SPRING VALLEY RANCH - SALES PROJECTIONS
TOTALS 1,150 1,600 100,000 sq. ft. 50,000 sq. ft. 300
The Landis Sanitation District would also be capable of providing sewage treatment
service to other areas adjacent to Lake Springs Ranch and Spring Valley Ranch. Other
potential areas which could be serviced by the District were outlined in an earlier
report entitled "Upper Spring Valley Sanitation Alternatives" prepared by Eldorado
Engineering Company in December, 1981. Areas that potentially could be included in
the District are delineated in Figure I -A. The use and possible expansion of the Landis
Sanitation District's sewage treatment facilities to service other users would be consider-
ed on a case by case basis.
Single
Multi
Family
Family
Retail
Office
Hotel
Year
Residences
Units
Space
Space
Room
1
35
25
2
85
50
10,000 sq. ft.
3
85
100
4
105
120
10,000
10,000 sq. ft.
150
5
110
140
6
80
160
20,000
10,000
150
7
85
170
8
105
160
30,000
15,000
9
95
180
10
85
205
11
80
135
30,000
15,000
12
75
90
13
65
45
14
60
20
TOTALS 1,150 1,600 100,000 sq. ft. 50,000 sq. ft. 300
The Landis Sanitation District would also be capable of providing sewage treatment
service to other areas adjacent to Lake Springs Ranch and Spring Valley Ranch. Other
potential areas which could be serviced by the District were outlined in an earlier
report entitled "Upper Spring Valley Sanitation Alternatives" prepared by Eldorado
Engineering Company in December, 1981. Areas that potentially could be included in
the District are delineated in Figure I -A. The use and possible expansion of the Landis
Sanitation District's sewage treatment facilities to service other users would be consider-
ed on a case by case basis.
I-4
Due to the development nature of the Landis Sanitation District, sewage treatment
facilities should be built in several increments. The phased construction and expansion
of sewage treatment facilities has several benefits including:
1. The initial sewer system users are not burdened with the higher capital and
operating costs associated with a larger treatment facility.
2. Future sewage treatment requirements can be evaluated as development progresses.
3. Treatment facilities are not built substantially before they are needed, thus
deferring depreciation, investment, and operating costs.
Preliminary development plans are shown for Spring Valley Ranch in Drawing I -D and
for Lake Springs Ranch in Drawing I -E. Residential and commercial construction will
occur between elevations 6,880' and 9,0001. Most of the development can be serviced by
a gravity sewage collection system.
LOAD DESIGN CRITERIA
Design Flow. The quantity and quality of wastewater expected from the development
is determined through the use of equivalent residential units (EQR). One EQR is defined
to be an average single family residence and can be assumed to be about 2.8 resident
persons or an activity producing an equivalent amount of wastewater. For design flow
j calculations, one EQR generates about 250 gallons of wastewater per day. The EQR
breakdown for the Landis Sanitation District is shown in Table I -F.
TABLE I -F
WASTEWATER EQR TABULATION FOR LANDIS SANITATION DISTRICT
Lake Springs
Spring Valley
Ranch
Total
Total
Single Family Residences
194 EQR
950 EQR
1144 EQR
Multi Family Units
13
1280
1293
Resort Hotel
--
75
75
Retail Space
--
35
35
Office Space
--
33
33
TOTALS
207
2373
2580 EQR
FIGURE I -D
�f/_— / `•�i 'i ��. �'7
17) �
a.
° 1
-.%n
x
SPRING VALLEY
snaNano �-
RANCH
ALLOT a N
KREGER Cory, cwwoft
f.�J•y
L
I-7
1
The peak day design flow for the sewage treatment facilities to service Lake Springs
Ranch and Spring Valley Ranch is approximately 650,000 gallons per day.
Since wastewater flows fluctuate throughout the day, a hydraulic peaking factor is
taken into account in the design of collection and treatment facilities. This peaking
factor at the plant is estimated to be about 2.2, indicating a peak flow rate of about
1,000 gallons per minute. Peaking factors for sewer lines will vary, and will be
considered for preliminary trunk sewer sizing.
Infiltration and inflow (I0 are extraneous flows entering the sewer collection system.
The contribution of flows from these sources is not expected to be significant. Inflow
will be controlled by preventing drainage connections to the sanitary sewage collection
system and the proper locating of sewer manholes.
Infiltration will be minimal since collection system sewer lines will be new and carefully
designed and installed.
Based on the sales projections for Spring Valley Ranch, the annual EQR development
and total EQR to be serviced by the sewage treatment facilities is provided in Table I -G.
M
TABLE I -G
WASTEWATER EQR DEVELOPMENT SCHEDULE - LANDIS SANITATION DISTRICT
Year of Spring
Annual
Cumulative
Valley Ranch
EQR
Total
Development
Added
EQR1
1
20
227
2
56
283
3
117
400
4
186
586
5
152
738
6
224
962
7
174
1,136
8
179
1,315
9
179
1,494
10
203
1,697
11
172
1,869
12
114
1,983
13
74
2,057
14
51
2,108
15
49
2,157
16
30
2,187
17
14
2,201
Ultimate Development Total
2,580 EQR
1 Includes 207 EQR of Lake Springs Ranch.
Wastewater Composition. Preliminary design of the treatment facilities should be based
on the following wastewater composition:
Biochemical Oxygen Demand (BODS) 260 mg/1
(5 day at 20 C)
Total Suspended Solids (TSS) 220 mg/l
Ammonia Nitrogen (NH3-N) 30 mg/I
I-9
1 The design organic loading of the proposed sewage treatment facilities is 1,400 pounds
of BODS per day. The population equivalent unit (PE) is used by some Colorado State
agencies in their review of wastewater treatment facilities plans. One PE is about
0.2 pounds of BODS per capita per day. Accordingly, the population equivalent of the
jproposed facilities would be about 7,000.
SECTION II
REQUIREMENTS FOR TREATMENT FACILITIES
1 WATER QUALITY OBJECTIVES
J The discharge of untreated or inadequately treated wastewater into "State Waters" is
,l prohibited. The degree of treatment required depends on the location and quality of
,J the receiving water, the method of discharge, and other factors.
Due to the high quality and low flow of streams within and nearby the Landis Sanitation
District, an extremely high level of treatment would be required if treated wastewater
is to be discharged directly into a creek. The Colorado Water Quality Control Commission
has set water quality criteria for streams near the Landis Sanitation District, which
are tributary to the Roaring Fork River, as partially listed in Table II -A.
TABLE II -A
PROPOSED STREAM WATER QUALITY STANDARDS
(Significant Parameters Only)
Dissolved Oxygen
NH3-N (unionized)
j NO3-N
pH
Fecal Coliform
Residual C12
6.0 mg/1
Min.
0.02 mg/I
Max.
10.0 mg/1
Max.
6.5 - 9.0
200/100 ml
Max.
0.003 mg/I
Max.
Since the streams are intermittent in some reaches below and around the proposed
sewage treatment facilities, the quality of the treated wastewater would theoretically
have to approach stream standards.
Direct discharge of treated wastewater can be avoided by using a form of land treatment.
Instead of discharging effluent to a natural surface watercourse, wastewater can be
used to irrigate crops and grassland for uptake and partial percolation into the ground.
The degree of treatment that the wastewater must receive prior to land treatment
depends upon the specific type and design of land treatment to be used and the location
II -2
1 and use of the wastewater application site. Typically a secondary treated effluent
containing 30 mg/1 of BODS and 30 mg/1 of TSS is suitable for most land applications
J(other than for irrigation of residential type grasses). Disinfection of the waste is
required to protect the public health.
REGULATORY REQUIREMENTS
The Colorado Water Quality Control Act (CRS 1973, 25-8-101, at seq) authorized the
Water Quality Control Commission, a division of the Colorado Department of Health,
to "develop and maintain a comprehensive and effective program for prevention, control,
and abatement of water pollution and for water quality protection throughout the State".
The Act requires State approval of the location and design of domestic wastewater
treatment works prior to construction of facilities. The appropriate site application
form is provided in Appendix B.
Application for site approval for any proposed wastewater treatment facilities will have
to be submitted for review and comment to:
1. Garfield County Planning Agency and Commissioners,
2. Garfield County Health Department,
3. Associated Governments of Northwest Colorado,
4. Colorado State Geologist, and
5. Colorado State Department of Health.
J State acceptance or rejection of the site application will be based on the recommendations
of the other involved agencies, the expected impact of the proposed sewerage facilities
I
f on the public health, welfare, and safety, a thorough review of treatment alternatives,
and other items.
A discharge permit will need to be submitted to the Water Quality Control Division of
the Colorado State Department of Health at least 180 days prior to placing the treatment
`I facilities into operation.
CLIMATIC AND PHYSICAL REQUIREMENTS
The cold winter climate of the area to be serviced by the Landis Sanitation District
jestablishes several requirements for treatment process design. Biological reactions,
which accomplish the major treatment of wastewater, slow down with depressed
Il -3
temperatures. To prevent unreasonably slow treatment rates, to protect pipes and tanks
from freezing, and to provide for reliable operation and maintenance, portions of the
1 treatment facilities should be enclosed and operated in a controlled environment.
Periods of snow cover and subfreezing temperatures limit the application of wastewater
to grasses and other vegetation, thus requiring winter storage of the wastewater
treatment plant effluent and subsequent land application during the spring, summer, and
fall irrigation seasons.
Drainage at the proposed wastewater treatment plant site appears to be marginal. Soils
testing will need to be performed before final design of the treatment facilities can
be accomplished.
AESTHETIC REQUIREMENTS
Due to the nature and quality of the proposed developments, it is important that sewage
treatment plant operations be efficient, reliable and discrete. This requirement is
accentuated by the proximity of proposed housing to the treatment facilities and the
potential use of the treated effluent for spray irrigation of the golf course and other
green areas throughout the development. The ability of alternative treatment processes
to operate effectively and reliably without causing odor or other aesthetic problems is
of primary importance for the sewage treatment plant.
Typically, small treatment plants do not have 24-hour operation attendance. Therefore
it is important that the wastewater treatment facilities require minimal maintenance
and are designed for reliability and ease of operation.
'.J
SECTION III
COMPONENTS OF ALTERNATIVE TREATMENT PLANS
1 GENERAL
Section II established several criteria which must be met by the wastewater treatment
facilities, including that they be:
1. Capable of meeting water quality objectives and criteria.
2. In conformance with Federal, State and local regulations.
3. Compatible with site conditions, social, and aesthetic values.
4. Practical, reliable, and easy to operate and maintain.
5. Cost effective.
These goals were used as qualifiers for selecting alternative treatment processes.
For discussion, treatment processes are organized into four general categories: (1)
pretreatment, (2) secondary treatment, (3) advanced waste treatment, and (4) sludge
treatment, storage and disposal.
PRETREATMENT
Pretreatment of wastewater involves the removal of hard and dense "grit" particles
from the wastewater stream, the screening out or grinding up of larger components in
the sewage, and the measurement and recording of incoming sewage flows. Pretreatment
facilities are a necessary prerequisite for any mechanical type treatment plant.
Aerated Grit Chamber. The removal of grit particles (eg. sand, coffee grounds) from
!I
the incoming wastewater is practiced to reduce wear on subsequent process equipment
and to prevent the particles from settling out in later treatment processes. An aerated
grit chamber depends on the rolling action of the wastewater, established within the
grit chamber by diffused air introduced at the bottom side of the tank, to allow selective
sedimentation of the more dense, faster settling grit particles. The settled out grit is
periodically removed from the basin and disposed of.
! An alternative to the aerated grit chamber is the horizontal flow grit chamber which
l relys on the maintenance of a uniform flow velocity through the grit chamber. Due to
�1
III -2
1 the highly fluctuating flows expected at the sewage treatment plant and the ancillary
1 advantages of sewage preaeration, the horizontal flow grit chamber is not recommended.
Screening. Larger material entering the sewage treatment plant must be removed or
reduced in size to prevent plugging of process lines and damage to equipment and to
facilitate treatment of the solids. The cutting teeth of a comminutor cuts up solid
material which becomes trapped on the shear screen. The sheared particles pass through
the screen and continue downstream with the rest of the wastewater.
A mechanically or hand cleaned bar rack provides alternative treatment to comminution.
They are generally preferable because solids are removed from the stream. However,
bar racks produce a solids handling problem, namely, disposal of the screenings.
Flow Measurement. The measurement and recording of wastewater flows entering a
sewage treatment plant is required by State law and facilitates control of treatment
process operations. A number of weirs, flumes, orifices and other devices have been
developed to measure flows. Parshall flumes have met with widespread use and
acceptance in wastewater treatment plants. A float operated, totalizing indicating
recorder provides readout of incoming flows.
SECONDARY TREATMENT
Secondary treatment processes encompass alternatives for carbonaceous biochemical
oxygen demand (BOD) and suspended solids removal. Typically, secondary treatment
processes for domestic wastewater rely on microorganisms to utilize the biodegradable
wastewater components for food. Some of the waste matter is synthesized to form
new biomass while the rest is oxidized to carbon dioxide and water which provides the
energy required by the microorganisms to live. Ten to thirty percent of the solids in
raw sewage are not biodegradable. These solids usually are removed from the treatment
processes as sludge.
Primary clarification sometimes preceeds secondary treatment processes. The main
benefit of this practice is a reduction in the organic and solids loading of the secondary
treatment units. The solids collected in the primary clarifier are periodically removed
and treated in conjunction with sludges from other treatment processes. Except when
explicitly required for downstream treatment processes, primary clarification is usually
not cost effective for small treatment facilities.
III -3
ADVANCED WASTEWATER TREATMENT
The use of spray irrigation for land treatment of the wastewater treatment plant effluent
I is an ideal system for this development. Spray irrigation involves the application of
treated wastewater to vegetative covered land. When properly operated, the practice
1 results in the reuse of the wastewater to meet irrigation requirements and the avoidance
of surface discharges.
During land treatment further significant reductions of wastewater contaminants occur
through many processes including:
1. Extraction of nutrients (e.g. nitrogen) by vegetative uptake,
1 2. Adsorption of contaminants onto the soil matrix,
1 3. Biological degradation of wastewater organics by soil bacteria,
4. Removal of microorganisms by straining and entrapment in the soil.
After treatment by spray irrigation, the non -consumed portion would approach drinking
water standards providing that the application rate and vegetation are properly selected.
Since spray irrigation of the proposed golf course and other accessible green belts with
sewage treatment plant effluent is planned, thorough disinfection of the wastewater
will be required. Multi -media filtration, followed by chlorine disinfection, should be
used. The filter will economically remove suspended solids from the effluent which
l would otherwise interfere with effective disinfection. The filter will also ensure a
l high quality effluent for golf course irrigation. Chlorination will kill most of the
bacteria and other microbes remaining in the effluent, reducing odor problems and any
threat to public health.
Ozonation can also provide disinfection of wastewater. However, there has been much
more experience with chlorination; and because of the high capital costs associated
with the generation of ozone, ozonation should not be considered further.
During the winter months and periods of subfreezing temperatures, the effluent from
the sewage treatment plant will have to be stored. The ultimate required size of the
holding ponds will be about 280 acre feet, providing storage for about six months at
design flows. A portion of the storage ponds could be incorporated into the golf course
as water hazards and could be used as irrigation holding ponds during the summer.
III -4
SLUDGE TREATMENT, STORAGE, AND DISPOSAL
Treatment of the solids passing through or produced in secondary treatment processes
1 is required. Sludge treatment and disposal typically accounts for nearly half of
J wastewater treatment costs.
Due to process reliability and ease of operation, aerobic digestion should be used to
stablize the sludge. Sludge requires stabilization in order to: (1) reduce pathogens,
(2) reduce the potential for odor problems and putrefaction, and (3) to reduce the
quantity of sludge requiring storage and/or disposal.
Land application of sludge has been demonstrated to be the most economical and
beneficial system for smaller plants, and is planned for the Landis Sanitation District.
Digested sludge will be applied to agricultural lands, as a soil conditioner thereby'
1 utilizing the nutritive value of the sludge. Adequate land for sludge application will
J have to be located.
Digested sludge will have to be stored during the winter months when frozen ground
prevents land application of the sludge. Aeration of the stored sludge will be required
to prevent odor problems. Storage volume requirements will depend on the solids
concentration of the sludge, with less capacity being needed for more concentrated
sludges. The design of sludge treatment and storage systems will also depend on the
specific secondary treatment alternative chosen.
TREATMENT PLANT ALTERNATIVES
General. Drawing III -A illustrates the individual treatment processes considered for the
ultimate sewage treatment plant and the relationship of each to the overall sewage
treatment scheme. Candidate unit processes have been identified for the secondary
treatment, pretreatment, and advanced processes.
Sizing of treatment processes is based on design wastewater flow of 650,000 gallons
per day and an organic loading of 1,400 pounds of BODS per day.
Secondary Treatment Alternatives.
o Alternative ST -1 - Conventional Activated Sludge:
J Activated sludge is a mixture of microorganisms (bacteria, protozoa, fungi) which
contact and digest biodegradable materials in wastewater. In the activated sludge
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M:
III -6
process, a mixture of wastewater and activated sludge is agitated and aerated.
The activated sludge is subsequently separated from the treated wastewater in a
secondary clarifier and wasted or returned to the process as required to maintain
the desired microorganism content within the aeration basin. The process depends
1 on the maintenance of a good settling sludge.
Aeration basins for the conventional activated sludge process should provide a hydraulic
detention time of about eight hours, requiring a total basin volume of about 200,000
gallons. The BOD5 in the clarified effluent is typically five to fifteen percent of that
in the raw, untreated sewage, representing a removal efficiency of 85 to 95 percent.
About 0.8 to 1.0 pounds of excess biological solids are produced per pound of BOD5
removed during treatment. This sludge would require further treatment and disposal.
f o Alternative ST -2 - Relax (Sequential Batch Reactor):
I The "Relex" process is a modification of the activated sludge process in which a
-� single basin is used for both active aeration of the sludge/waste water mixture and
for the separation of the treated wastewater from the activated sludge. Relax
basins are sized to provide a hydraulic detention time of 24 to 30 hours. This
l would require a combined treatment basin volume of about 0.75 million gallons.
�i
BOD5 and suspended solids removal efficiencies for the Relax process are somewhat
1' lower than those for conventional activated sludge. Sludge production is substan-
" tially lower than that for conventional activated sludge. Sludge removed from
the Relax basin is more stable than that withdrawn from the conventional activated
sludge process and requires minimal subsequent digestion. No separate secondary
clarifier is required, wherein lies a major advantage of the Relax system. As
growth occurs, two reactors could be used with alternate loading in a sequential
batch reactor mode.
o Alternative ST -3 - Rotating Biological Contractors:
This treatment alternative is based on the use of rotating biological contactors
(RBC's). The contactors provide a large media surface area for fixed film
microorganisms to attach to. The contactor is partially submerged and rotates
slowly, allowing the microbes to contact and treat the wastewater. Primary
clarification or fine screening is required preceding the RBC's to prevent plugging
of the media and to lighten the solids and organic loadings. While activated
,i
sludge processes require a substantial amount of energy to operate blowers and
I
III -7
f
mixers, RBC's have lower energy requirements. As with other secondary treatment
processes, RBC's produce excess biological sludge which will require secondary
clarification and sludge treatment. Typical BODS removal efficiencies for RBC's
are around 80 to 90 percent.
USE OF OTHER DISTRICT'S FACILITIES
The Spring Valley Sanitation District (SVSD) was formed in 1980 and treats the wastewater
from Colorado Mountain College, and the Pinion Pines and Los Amigos Ranch develop-
ments. SVSD currently utilizes aerated lagoons for sewage treatment. The lagoons
have an approximate capacity of 50,000 gallons per day.
The use of the SVSD aerated lagoons by Landis Sanitation District does not appear
practical for the following reasons:
o A sewage lift station and pressure sewer pipeline would be required to service
much of Landis Sanitation District. A gravity sewage collection system, as
proposed in this Service Plan, is more reliable and cost effective to operate.
o The SVSD aerated lagoons are not amenable to economic expansion to treat
the estimated flows from Landis Sanitation District.
o The reuse of treated effluent is proposed for Landis Sanitation District
whereby the treated effluent will be pumped to storage reservoirs and
subsequently utilized to meet area irrigation needs. The reuse concept has
an established history and provides significant savings in view of overall
water rights and treatment system development costs.
o When probable fees for the annexation to SVSD of the areas to be included
within the Landis Sanitation District are considered, the use of the SVSD
sewage treatment lagoons appears not to be the most cost effective solution
for meeting the wastewater treatment needs of Landis Sanitation District.
The use of the SVSD treatment facilities by Landis Sanitation District is not considered
further in this Service Plan.
I
SECTION IV
FACILITIES PLANNING
ALTERNATIVE TREATMENT SYSTEMS
GENERAL
IV -1
Having identified process alternatives which appear to be generally practical for handling
the sewage treatment needs for the Landis Sanitation District, preliminary design and
cost estimates for the facilities required to implement each alternative were undertaken.
The costs presented below have been developed for comparative Purposes and should
not be taken as precise. Sources used for cost estimates include manufacturer's pricing
information, cost data from comparable projects, and published cost estimation data for
specific treatment processes. All costs are in 1983 dollars. O & M costs are annual
expenses for the facilities operated at design conditions.
PRETREATMENT WORKS
(common to all alternative treatment schemes)
An aerated grit chamber would be sized to provide a three minute hydraulic detention
time for peak flows. The chamber would be 10 feet long, 6 feet wide, and 6-10 feet
deep. Medium bubble diffusors would introduce air at the bottom of the basin at a rate
of about 30 cubic feet per minute. About two cubic feet per day of grit would be
expected at design loadings.
An automatic bar screen would operate continuously and remove larger objects from
the influent sewage flow. A manually cleaned bar screen would be provided in an
adjacent channel to allow bypass of the automatic bar screen when it requires maintenance
or repair.
Flow measurement would be afforded by a nine -inch Parshall flume equipped with a
float actuated totalizing/indicating recorder. Expected construction and operation and
maintenance costs for the pretreatment facilities are itemized in Table IV -A.
TABLE IV -A
PRETREATMENT FACILITIES COST ESTIMATE
Construction Costs
Structural $25,000
Superstructure 20,000
Air Supply System (fraction of blower, air piping,
and diffusers) 8,000
Automatic Bar Screen 10,000
Grit Handling Equipment (pumps, bins, piping) 25,000
Bar Screen, Metal Gates 10500
Parshall Flume, Flow Recorder 8,000
Total Pretreatment Construction Costs $97,500
Operation and Maintenance (O & M) Costs
Electricity Requirements ($0.06/Kw hr.) $ 600
Labor Costs ($15/hr.) 6,000
Equipment Maintenance 1,500
Total Pretreatment O & M Costs
a
SECONDARY TREATMENT FACILITIES
$ 8,100
IV -2
J Alternative ST -1: Conventional Activated Sludge
J Under this alternative, pretreated wastewater would be mixed with return activated
1 sludge and then flow into aeration basins having a combined volume of 270,000 gallons.
J The aerated mixture of activated sludge and wastewater, called the mixed liquor; would
I flow into a secondary clarifier having a 40 foot diameter circular sludge collector. The
clarified effluent would pass on to advanced wastewater treatment processes. About
11,000 gallons per day of a I percent solids sludge would be collected in the secondary
clarifier and would require aerobic sludge digestion.
IV -3
Air would be supplied to the aeration basin by a blower and iron piping. The aeration
system would require about 40 horsepower.
Two methods are commonly used to meet aeration requirements of the activated sludge
process. The first method, diffused aeration, incorporates bubble diffusors in the bottom
of the aeration basin to keep the mixed liquor agitated and to provide the required
oxygen transfer into the wastewater. Mechanical turbine mixers and air spargers are
used in the second method to enhance oxygen transfer and to maintain suspension of
the solids within the aeration basin. Diffused aeration requires larger air compressors
but does not depend on turbine mixers. The use of submerge turbine aerators reduces
the air required to meet a given activated sludge process oxygen requirement, but
turbine mixers are an added maintenance problem and require substantial electricity.
Costs for the two alternative aeration methods are comparable. Therefore, for the
purposes of this Report, a decision on the method of aeration to be used is not required.
Final design of treatment facilities will determine the most suitable and cost effective
aeration system.
Cost Estimates for construction and operation of a conventional activated sludge system
are outlined in Table IV -B.
TABLE IV -B
ALTERNATIVE ST -1: CONVENTIONAL ACTIVATED SLUDGE COST ESTIMATE
Construction Costs
Aeration Basins $ 41,200
Control Building 51,000
Aeration System 70,000
Secondary Clarifier 170,000
Sludge Pumps and Piping 34,000
Total Estimated Construction Cost $366,200
I IV -4
Operation and Maintenance Costs
Electricity Requirements $ 20,000
Labor Requirements 109500
Equipment Maintenance 2,500
Total Estimated O&M Costs $ 33,000
Alternative ST -2: Sequential Batch Reactor
The use of sequential batch reactors (Relex) would require basins with a combined
volume of 800,000 gallons. As with conventional activated sludge, an aeration system
j would be required under this alternative. About 9,000 gallons per day of a 1 percent
J solids sludge would be removed from the basins and pumped to the sludge handling
r facilities. Table IV -C provides a capital and O & M cost estimate for a Relex secondary
treatment facility.
TABLE IV -C
ALTERNATIVE ST -2: RELEX PROCESS COST ESTIMATE
Construction Costs
SBR Aeration Basins $ 98,000
Control Building 56,000
Aeration System 801000
Sludge Pumps and Piping 39,000
Effluent Decant & Flow Control 30,000
Total Anticipated Construction Costs $303,000
Operation and Maintenance Costs
Electricity Requirements $ 22,000
Labor Requirements 10,000
Equipment Maintenance 4,000
Total O & M Costs $ 36,000
IV -5
J Alternative ST -3: Rotating Biological Contactors (RBC's)
This secondary treatment alternative would include primary clarification of the pretreated
wastewater. The primary clarifier would remove about 60 percent of the incoming
suspended solids from the wastewater. About 1,600 gallons per day of a five percent
solids sludge would be removed from the 40 foot diameter primary clarifier and pumped
to the aerobic digesters. The effluent from the primary clarifier would have a BODS
j of about 180 mg/l.
Four twenty-five foot long, twelve foot diameter, four stage rotating biological contactors
would be installed in parallel basins. The effluent from the contactors would pass
through a forty foot diameter secondary clarifier and on to advanced wastewater
1 treatment. An additional 4,500 gallons per day of a 1-1/2 percent solids sludge would
be removed from the secondary clarifier and require sludge treatment.
Table IV -D provides a construction and O & M cost estimate for the facilities required
under this alternative.
TABLE IV -D
COST ESTIMATE FOR ALTERNATIVE ST -3: ROTATING BIOLOGICAL CONTACTORS
Construction Costs
Primary Clarifier $110,000
RBC Building 142,500
RBC Equipment 240,000
Secondary Clarifier 170,000
Control Building 57t200
Sludge Pumps and Piping 52,000
Total Estimated Construction Costs $771,700
Operation and Maintenance Costs
Electricity Requirements
Labor Requirements
Equipment Maintenance
Total Anticipated O & M Costs
ADVANCED WASTEWATER TREATMENT WORKS
(common to all alternative treatment schemes)
$ 16,000
6,000
3,000
$ 25,000
IV -6
Following secondary treatment of the wastewater, a holding basin with a volume of
about 350,000 gallons would be provided to equalize flows to the multi -media filters.
(Note that for the Relax system a polishing pond providing a 3 -day detention time would
serve this purpose.) Wastewater would be pumped from the basin at a constant rate
of about 500 gallons per minute and applied to the filters. Two filters would be
provided, each having a media surface area of 81 square feet. Backwashing of a filter
would be required when solids buildup within the filter caused excessive headloss through
the filter. A water/air backwash system would be provided to minimize potential odor
problems. A surface wash agitator would be provided to ensure thorough cleaning of
the filter media during backwash.
Chlorine
solution would be mixed with the filtered
effluent. The
chlorine feed would
be from
150 pound
chlorine gas cylinders at a maximum
feed rate
of about 30 pounds
per day.
Chlorine
feed equipment would be housed
in a separate
room.
The detention time required for disinfection would be provided in the pipeline to the
irrigation/winter storage ponds. Spray irrgation of the wastewater would take place
when environmental conditions permit.
The expected capital construction costs and annual operation and maintenance expenses
for advanced wastewater treatment facilities are provided in Table IV -E. The costs
for equipping a small monitoring laboratory has been included in this Table. The lab
would probably be required by the State for any treatment plant.
IV -7
l Costs associated with irrigation using the sewage treatment plant effluent are not
J included but are assumed to be part of a lands maintenance budget.
TABLE IV -E
ADVANCED WASTEWATER TREATMENT FACILITIES COST ESTIMATE
Construction Costs
Structural (enclosure building for filter, C12,
l and filter equipment) $140,000
J Filter Installation (filter media, underdrain,
r i surface wash agitator, process piping and pumps) 1202000
JChlorine Feed Equipment (chlorine feeder, scales,
mixer, ventilation fans, etc.) 20,000
Laboratory Equipment and Chemicals 10,000
Total Anticipated Construction Costs $290,000
Operation and Maintenance Costs
Electricity Requirements $ 10600
Labor Requirements 10,500
Chlorine Costs 3,500
Equipment Maintenance 1,500
Total O & M Costs Expected $ 17,100
`j SLUDGE TREATMENT AND STORAGE
General. The sizing of the sludge handling facilities is dependent upon the quantity
of sludge requiring treatment and storage. Each of the alternative secondary treatment
i
processes considered in this Report would produce a different amount of sludge. The
volume of sludge requiring treatment and the expected solids concentration of the sludge
j from each of the secondary treatment alternatives are estimated in Table VI -F.
IV -8
TABLE IV -F
EXPECTED SLUDGE QUANTITIES FOR SECONDARY TREATMENT ALTERNATIVES
Secondary Treatment Process Alternative Weight of Sludge % Solids Quantity
Alt. ST -1 Conventional Activated Sludge
Alt. ST -2 Relex
Alt. ST -3 Rotating Biological Contractors
Primary clarifier sludge
Secondary clarifier sludge
Total sludge produced Alt. ST -3
900 lb/day
1
11,000 gpd
700
1
9,000
(600)
(5%)
(1,600)
(530)
(1-1/2%)
(4,500)
1130
--
6,100
The sludge produced from the secondary treatment alternatives also varies in quality
and composition. Due to the longer detention time and sludge age afforded by the
Relax process, the sludge from this process is more stable and contains less volatile
matter than the sludge from other treatment alternatives. Therefore, there is a smaller
hydraulic and organic sludge treatment process loading when the Relax process is used.
On the other side of the sludge quality spectrum, the sludge collected in a primary
clarifier has received little treatment and requires extensive stabilization within sludge
treatment processes. Therefore, sludge digestion facilities would be larger following
secondary treatment alternative ST -3 (which incorporates primary clarifiers and RBC's)
than for other secondary treatment processes. Sludge transport and disposal requirements
are discussed separately from sludge treatment and storage facilities in this section.
Sludge Thickening
Since sludge storage would be required when frozen ground conditions preclude the land
application of digested sludge, thickening of the sludge collected from the secondary
treatment processes would be cost effective. The sizing of the digestion and sludge
storage facilities is based on the centrifugal thickening of the waste sludge to a solids
concentration of 5%. Resultant sludge flows to sludge digestion facilities are given in
Table IV -G.
TABLE IV -G
THICKENED WASTE SLUDGE FLOWS
Secondary Treatment Alternative
ST -1 Conventional Activated Sludge
ST -2 Relax Process Waste Sludge
ST -3 RBC's (Primary and Secondary Sludge)
Quantity
2200 gpd
1800 gpd
2700 gpd
IV -9
The centrifuges would be sized to process all waste sludge flows when operated, five
days a week for 7-1/2 hours per day. Under alternative ST -3, the centrifuge would be
used only to thicken the sludge from the secondary clarifier. Sludge collected in the
primary clarifier would be pumped directly to the digester.
The construction and operating
costs for centrifugal
thickening of
waste sludge are
given in Table IV -H.
Costs for
a structure to house
the centrifuge
are included with
the digester control
building.
2,500
TABLE IV -H
CENTRIFUGAL SLUDGE THICKENING COST ESTIMATE
Construction Costs
Centrifuge and Controls
Operating and Maintenance Costs
JElectricity Requirements
Labor Requirements
Equipment Maintenance
TOTAL O&M
Secondary Treatment Alternative
ST1 ST2 ST3
$112,000
$112,000
$95,000
$ 21900
$ 2,900
$ 2,000
6,000
6,000
6,000
3,000
3,000
2,500
$ 11,900 $ 119900 ' $10,500
IV -10
Aerobic Sludge Digestion
Design particulars for the aerobic digesters associated with the secondary treatment
alternatives are listed in Table IV -I. It is proposed that separate aerobic digestion
facilities will not be required following the Relax process (sequential batch reactors).
Further treatment and stabilization of this sludge will be obtained within the aerated
sludge storage basin.
TABLE IV -I
AEROBIC DIGESTER DESIGN PARAMETERS
Hydraulic Detention Time
Required Digestion Volume
Oxygen Requirement
Aeration System Horsepower
Secondary Treatment Alternative
ST -1:
ST -3:
Conventional
Rotating
Activated
Biological
Sludge
Contactors
15 days 20
35,000 gallons 58,600
850 pound per day 1,600
20 Hp 35
The expected construction and operation and maintenance costs for aerobic digestion
are presented in Table IV -J.
IV -11
TABLE IV -J
AEROBIC DIGESTION COST ESTIMATE
Secondary Treatment Alternative
ST -1 5T-3
Construction Costs
Structural (enclosed digestion basin,
pumproom, control building)
$98,800
$117,500
Aeration System (mixers, fraction of
blower, air piping, etc.)
30,000
35,000
Process Piping and Pumps
25,000
25,000
Total Anticipated Construction
Costs
$153,800
$177,500
Operation and Maintenance Costs
Electricity Requirement $ 8,000 $ 13,000
Labor Requirement 3,500 3,500
Equipment Maintenance 2,000 2,500
Total O & M Costs $13,500 $19,000
Aerated Sludge Storage
The aerated storage volume required to meet winter sludge storage demands depends
on the secondary treatment process selected. Storage basin volumes are calculated using
a required sludge storage period of 200 days each year and an average residency of
75 percent during the winter months. Aeration would be IV -13 required in the storage
tanks to prevent odor problems. The required sludge storage basin volumes required
under the different secondary treatment alternatives are given in Table IV -K.
TABLE IV -K
SLUDGE STORAGE REQUIREMENTS
Secondary Treatment Alternative
ST -1 Conventional Activated Sludge
ST -2 Relex Process
ST -3 Rotating 'Biological Contractors
Required Storage Capacity
350,000 gal.
290,000 gal.
440,000 gal.
IV -12
The expected capital and O&M costs for the sludge storage facilities are shown in Table
IV -L.
TABLE IV -L
SLUDGE STORAGE COST ESTIMATE
Construction Costs
Structural (enclosed storage basin)
Aeration System (blower, mixers, air
piping)
Process Piping and Pumps
Total Anticipated Construction Costs
Operation and Maintenance Costs
Electricity Requirement
Labor Requirements
Equipment Maintenance
Secondary Treatment Alternative
ST -1 ST -2 ST -3
$243,400 $190,000 $297,600
26,000 24,000 29,000
15,000 15,000 15,000
$2849400 $229,000 $341,600
$ 4,400 $ 2,900 $ 7,100
19400 1,400 1,400
1,000 900 1,200
Total Expected 0 & M Costs $ 6,800 $ 5,200 $ 9,700
IV -13
Liquid Sludge Transport and Application
(common to all alternative treatment schemes)
A tank truck would be required for hauling liquid sludge from the treatment facilities
to the sludge application site. Several tank trucks are made specifically for the
transport and land applicatiorn of domestic wastewater sludges. A small truck with
1600 gallon capacity tank would meet the requirements of Landis Sanitation District.
Subsurface injection of sewage sludge provides thorough mixing of the sludge with the
soil and reduces odor and the potential for sludge runoff by burying the sludge eight to
ten inches deep. Cost estimates for equipment and operation of a liquid sludge transport
and application system are presented in Table IV -M.
TABLE IV -M
LIQUID SLUDGE TRANSPORT AND APPLICATION SYSTEM COST ESTIMATE
Capital Costs
Sludge Truck (a specially designed
tank truck with attached subsurface $80,000
injector)
Operations and Maintenance Costs
Secondary Treatment Alternatives
Sludge Handling Alt ST -1 ST -2 ST -3
Fuel
Labor Requirements
Equipment Maintenance
$ 4,400 $ 3,400 $ 5,600
4,200 3,300 5,300
5,500 4,300 7,000
Total O&M Costs Expected $14,100 $11,000 $17,900
IV -14
1 SUMMARY OF COST ESTIMATES
l Table IV -0 provides a summary of costs for the alternative secondary treatment and
sludge handling combinations. The cost estimate for sludge handling combines aerobic
digestion, aerated sludge storage, sludge transport and land application.
TABLE IV -O
COST ESTIMATE SUMMARY FOR SEWAGE TREATMENT ALTERNATIVES
1 Construction Costs
l Pretreatment
J Secondary Treatment
- l Advanced Wastewater Treatment
i Sludge Treatment and Disposal
J Total Construction Cost
Add 25% Engineering, Legal,
Contingencies
Total Estimated Budget
Operation and Maintenance Costs
Pretreatment
Secondary Treatment
Advanced Wastewater Treatment
Sludge Treatment and Disposal
Total O&M Cost
Secondary Treatment Alternative
ST -1 ST -2 ST -3
$ 97,500 $ 979500 $ 97,500
366,200 303,000 771,700
290,000 290,000 2901000
$ 630,200 421,000 694,100
$19383,900 $1,111,500 $1,853,300
346,000 277,900 463,300
$1,729,900 $1,389,400 $2,316,600
$ 8,100$ 8,100$ 8,100
33,000 36,000 25,000
17,100 17,100 17,100
46,300 28,100 57,100
$ 104,500$ 89,300$ 107,300
SCREENING OF ALTERNATIVES
i General
Preliminary designs and cost estimates presented for several practical alternative
treatment systems are compared hereinafter, evaluating the advantages and disadvantages
IV -15
inherent with each alternative. On the basis of this screening, an optimum cost-effective
1 plan for wastewater treatment can be selected.
The screening process will evaluate the relative merits of the alternative systems using
monetary and non -monetary factors. The major elements to be considered are:
1) Analysis of monetary costs,
2) Engineering evaluation of alternatives with regards to process reliability and
operability, and
3) Attainment of goals established in Section II of this Report.
l Analysis of Monetary Costs
J In order to select a cost-effective treatment plan, the previously developed costs must
be compared. To provide a direct comparison of alternatives, only items which vary
between alternatives will be compared. The pretreatment and advanced wastewater
treatment processes, which are common to all alternatives, are not involved in this
comparison.
Because the costs incurred for sludge treatment and disposal are linked to the secondary
treatment process selected, the costs for processes in these two treatment categories
are considered together.
Since lower operation and maintenance costs might balance out the effect of higher
capital costs, a common basis is required for comparing the total costs for treatment
plans. The common basis for comparison is provided by a present worth analysis which
presents all costs in terms of present dollars that would have to be committed today
to yield funds to cover the expected capital costs and operation and maintenance expen-
ses. Thus, the present worth method of comparison consists of reducing all future
monetary costs for each alternative to a single present sum. The long term interest
rate has been estimated to be 10 percent for the present worth analysis presented
herein. The present worth of expenditures associated with the implementation of the
alternative treatment plans is shown in Table IV -P.
IV -16
TABLE IV -P
PRESENT WORTH COMPARISON FOR SECONDARY TREATMENT ALTERNATIVES
SECONDARY TREATMENT SLUDGE HANDLING
Alternative Present Worth Present Worth Total
ST -1
Conventional $647,100 $1,024,400 $1,671,500
Activated Sludge
Ratio to Low
1.32
ST -2
Relax 6099500 660,200 1,269,700 1.00
Process
ST -3
Rotating 984,500 1,180,200 2,164,700 1.70
Biological
Contactors
Analysis of Table IV -P indicates that the use of the Relax process for secondary
treatment is the least costly treatment alternative. Savings due to the reduced power
consumption and labor requirements associated with rotating biological contacts do not
outweigh the capital costs for a primary clarifier installation, and the RBC mechanism
and the increased sludge handling costs.
Engineering Evaluation of Alternatives
The Relax process requires relatively less operator expertise to maintain efficient
operation. Due to the longer aeration period, the Relax process is less sensitive to
fluctuating (peak) and toxic waste loadings. Also, some nitrification of the wastewater
(the conversion of ammonia -nitrogen to nitrite and nitrate -nitrogen) will occur if the
?, Relax process is used. Since high concentrations of ammonia can be toxic to aquatic
life, nitrification is desirable.
Advantages associated with the use of rotating biological contactors at Landis Sanitation
District do not outweigh the inherent problems of this secondary treatment alternative.
I
i
IV -17
The primary clarifier preceding the RBC's would collect a highly unstable sludge. The
use of aerobic digestion for primary sludge stabilization is prone to odor problems. The
r 1 use of anaerobic sludge digestion is not recommended at Landis Sanitation District due
to the constant monitoring required for anaerobic processes and the sensitivity of the
{ process to fluctuating sludge loadings. The use of aerobic treatment processes will
J minimize potential odor problems at the sewage treatment plant.
A significant advantage of the Relax process is that it does not require a separate
clarifier for the separation of sludge from the wastewater. It is not economical to
build two smaller clarifiers instead of one single unit to meet ultimate requirements for a
1 MGD or smaller plant. The phased construction and expansion of sewage treatment
facilities is important at Landis Sanitation District and it is important that treatment
processes be amenable to cost effective phasing.
RECOMMENDED WASTEWATER TREATMENT SYSTEM
The wastewater treatment system that appears to be best suited and most cost effective
for the Landis Sanitation District consists of the following treatment operations and
processes:
Pretreatment
Aerated grit chamber
j Screening
1 Flow measurement
Secondary Treatment
Sequential Batch Reactors (Relex - activated sludge process)
Advanced Wastewater Treatment
Multi -media filtration (for golf course and accessible greenway irrigation only)
Chlorine disinfection
Spray irrigation/winter effluent storage
IV -18
Sludge Handling
Centrifugal sludge thickening
Aerated storage/aerobic digestion
Liquid sludge transport
Subsurface injection of sludge
A flow diagram for the proposed wastewater treatment system is provided in Figure IV -Q.
A preliminary sketch plan of the proposed treatment facilities is shown in Drawing IV-
R. Flexibility exists in the organization of unit treatment operations. Drawing IV -R
is intended to convey the approximate arrangement of the treatment processes to
facilitate a plant cost estimate. Details of the design and layout of the wastewater
treatment facilities would be determined during final design.
A preliminary construction cost estimate for the proposed treatment facilities is provided
in Table IV -S. Costs are given in 1983 dollars. It is difficult to accurately estimate
O&M costs during the preliminary design. Assuming the plant to be fully loaded, an
approximate estimate of system O&M costs is provided in Table IV -T. The O & M costs
for the proposed first phase treatment facilities are estimated to be about $35,000 per
year during the initial years of operation.
TABLE IV -S
PRELIMINARY COST ESTIMATE FOR RECOMMENDED WASTEWATER TREATMENT
FACILITIES
CAPITAL COSTS
Earthwork $ 77,400
Concrete 2601000
Superstructure 77,300
Pretreatment Equipment
Automatic Bar Screen $ 16,000
Parshall Flume w/TIR 6,000
Grit Handling Equipment 32,600
IV -19
Subtotal -Pretreatment Equipment $ 48,600
Aeration System
3-40 Hp blowers $ 739600
4-7 1/2 Hp mixers 36,000
Air Diffusers and Piping 329000
Subtotal -Aeration System $ 149,600
Sludge Wasting Pumps 18,000
Process Piping and Valves 60,000
Advanced Wastewater Treatment Equipment
2-9' Filter Installations $109,600
2-500 gpm Filter Pumps 16,000
Surface Wash Pump 6,000
Chemical Feed Equipment 30,000
Effluent Pumps 16,000
Subtotal AWT Equipment $ 177,600
Centrifuge $ 112,000
Sludge Tank Truck w/subsurface
Injection System 909000
Electrical and Control 40,000
Lab Equipment 10,000
Total Estimated Construction Cost $1,1129500
Add 25% for Contingencies, Legal,
Engineering 278,100
Total Recommended Project Budget
(1983 dollar levels) $ 1,390,600
Cost Per Equivalent Residential Unit 540/EQR
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IV -22
TABLE IV -T
ANNUAL SEWAGE TREATMENT PLANT O&M COST ESTIMATE
(1983 DOLLARS)
Labor (3,000 hours @ $15/hour) $ 45,000
Electricity (700,000 Kwhr @ $0.05/Kwhr) 35,000
Equipment Maintenance 23,000
Diesel Fuel (3,000 gallons @ $1.10/gallon) 3,300
Chlorine (14,000 pounds @ $0.25/pound) 3,500
Supplies and Miscellaneous 10,200
Total Annual Plant O&M Costs $120,000
(at full development)
1 PHASING OF TREATMENT FACILITY CONSTRUCTION
Alternate treatment plans considered in this report are based on different phasing
assumptions and upon different unit treatment process selections. Phased construction
of sewage treatment facilities is essential for the Landis Sanitation District.
As discussed previously, the Relax process is capable of economical phasing. Based on
the sales projections provided by Spring Valley Holding, Ltd., the treatment plant should
be built in three stages. A breakdown of the facilities to be constructed under each
stage follows.
o Stage 1 is the construction of the minimum recommended initial plant and
would include construction and/or installation of the following treatment
facilities and equipment: bar screen, Parshall flume, one 300,000 gallon
Relax basin, aeration diffusors for Relax basin, polishing pond, one 40 Hp
blower with one standby blower, one sludge wasting pump with one standby
pump, one aerated sludge storage tank, two 7-1/2 Hp mixers, chlorination
equipment, portions of the control building and pump and piping gallery, and
required process piping.
The estimated project budget for the first stage plant is $450,000 and the
capacity of the plant would be about 200,000 gallons per day. The plant
would serve a B00 EQR development which is expected to be adequate through
IV -23
The winter effluent storage ponds for the first stage would need a combined
capacity of about 60 acre feet.
o Stage la would include the construction of one of the tertiary treatment
multi -media filters and related facilities and would occur when irrigation of
the golf course with the treatment plant effluent was required. The estimated
project cost for Stage la is $150,000.
o Stage 2 would include the construction of the aerated grit chamber and the
installation of the automatic bar screen and the sludge thickening centrifuge.
This stage would increase the treatment plant capacity to about 450,000
gallons per day and have a project cost of about $350,000 (1983 dollars).
The second stage plant could serve 1,800 EQR and would be sufficient through
year 10 of the Spring Valley Development.
The winter effluent storage ponds would need to have ,a combined capacity
of 130 acre feet for the Stage 2 plant.
o Stage 3 would include the construction of the second Relax basin and aeration
system, the second aerated sludge storage tank, the second multi media filter,
and the equipment to expand the plant to the design capacity of 650,000
gallons per day. The estimated project cost for the final phase of the plant
is about $460,000 (in 1963 dollars).
Additional winter effluent storage ponds would need to be constructed to
provide the design winter storage requirements of 280 acre feet.
year
five of the
Spring Valley
development.
The effluent
from the first
stage
plant should
be used for
irrigation only
of inaccessible
greenways.
The winter effluent storage ponds for the first stage would need a combined
capacity of about 60 acre feet.
o Stage la would include the construction of one of the tertiary treatment
multi -media filters and related facilities and would occur when irrigation of
the golf course with the treatment plant effluent was required. The estimated
project cost for Stage la is $150,000.
o Stage 2 would include the construction of the aerated grit chamber and the
installation of the automatic bar screen and the sludge thickening centrifuge.
This stage would increase the treatment plant capacity to about 450,000
gallons per day and have a project cost of about $350,000 (1983 dollars).
The second stage plant could serve 1,800 EQR and would be sufficient through
year 10 of the Spring Valley Development.
The winter effluent storage ponds would need to have ,a combined capacity
of 130 acre feet for the Stage 2 plant.
o Stage 3 would include the construction of the second Relax basin and aeration
system, the second aerated sludge storage tank, the second multi media filter,
and the equipment to expand the plant to the design capacity of 650,000
gallons per day. The estimated project cost for the final phase of the plant
is about $460,000 (in 1963 dollars).
Additional winter effluent storage ponds would need to be constructed to
provide the design winter storage requirements of 280 acre feet.
V-1
(� SECTION V
SEWAGE TRANSMISSION SYSTEM
GENERAL
The sewage transmission system can be divided into two subsystems: the neighborhood
collection sewers and the trunk and outfall sewers. This Service Plan is based on
neighborhood sewer lines being installed and paid for by the neighborhood building
developers. Ownership and maintenance of the neighborhood collections sewers would
be transferred to the District after completion of their installation and acceptance by
the District.
The sewage collection system should be designed as a gravity system in so far as
possible, minimizing the number of lift stations. The majority of the sewer pipelines
should be polyvinyl chloride; however, it may be necessary to use cast iron or ductile
iron pipe where strength or watertightness are important. Sewers will have grades and
manhole spacings conforming to the Colorado Health Department's design recommenda-
tions.
The actual pipeline locations will be field located to minimize rock excavation and
adverse environmental impacts. Development planning should recognize critical sewer
elevations and build above these.
TRUNK AND OUTFALL SEWERS
Trunk and outfall sewer sizes and general locations are shown on Drawing V-A (in
pocket at end of chapter). All trunk sewers have been sized to accommodate peak flows
of the predicted ultimate development. The preliminary scheduling plan and cost
estimates, as provided in Table V -B, assume that the sewer system design will influence,
or in some cases limit, development planning in some critical areas.
TABLE V -B
TRUNK SEWER SYSTEM COST ESTIMATE
Year Description of lines
1 8" to Mfg.. Housing
10" to Moderate Housing
15" Main Trunk
TOTAL YEAR 1
3 8" to Central Valley
8" to South Valley
10" to Multiple Family
TOTAL YEAR 3
4 8" to Equestrian
5 8" to Golf Course Lots
8" to Upper Golf Lots
TOTAL YEAR 5
Length
8250 ft.
3300 ft.
6600 ft.
8250 ft.
3850 ft.
6050 ft.
2200 ft.
6600 ft.
15400 ft.
TOTAL TRUNK SEWER CONSTRUCTION COST
Add 25% Engineering and Contingencies
TOTAL TRUNK SEWER PROJECT COST
Cost
$ 206,250
99,000
231.000
$ 536,250
$ 206,250
96,250
181,500
$ 484,000
$ 178,750
$ 165,000
385,000
$ 550,000
$1,749,000
437.000
$2,186,000
V-2
I
I VI -1
SECTION VI
EFFLUENT REUSE AND WINTER STORAGE SYSTEM
GENERAL
Due to the value of water in the Spring Valley/Lake Springs Ranch area, and to avoid
possible environmental problems associated with the direct discharge of effluent from
the sewage treatment plant, the effluent will be used for spray irrigation of the golf
course, agricultural land and greenways within the Landis Sanitation District. Long
term agreements between the Sanitation District and landowners within the District will
need to be secured in order to insure that adequate suitable land is available for
irrigation with effluent. As detailed in Section III, the effluent from the sewage
treatment plant will be of a very high quality and its use should not create a public
nuisance or health threat. The careful siting of the areas to be used for spray irrigation
and precautions taken during the irrigation process will further decrease the likelihood
of problems.
Winter storage of the effluent will be required during the winter months and periods
Jof subfreezing temperatures, as noted in Section III. The effluent storage ponds should
be sized to provide about six months of storage.
REUSE DISTRIBUTION PIPELINES
Pressure pipelines will be required from the sewage treatment plant to the effluent
storage ponds and to the areas at which spray irrigation will occur. The pipelines could
be ductile iron or polyvinyl chloride. Precautions should be taken to clearly distinguish
the reuse pipeline from the domestic water pipes. The physical separation of the reuse
pipelines and the domestic water pipelines will be required in much the same manner
that sewers and domestic water pipes must be separated. It might be possible and
economical to install the reuse pipeline and a sewer outfall line in the same trench at
some locations.
The size and general location of the reuse distribution pipelines are shown on Drawing
V-A. The actual pipeline locations will be field established during final design in order
to minimize rockexcavation and environmental impacts.
VI -2
EFFLUENT STORAGE RESERVOIRS
The sites for the effluent storage ponds have been preliminarily field located and are
1 shown on Drawing V-A. Three ponds have been located; two having a developable
1 capacity of about 80 acre-feet and one with about 120 acre-feet. A small existing
pond located next to Landis Creek could be used on an emergency basis and would
provide about 10 acre-feet of storage.
EFFLUENT SYSTEM COST ESTIMATE
Table VI -A presents a preliminary phasing schedule and cost estimate for the effluent
distribution and storage system. Equipment costs and annual operation and maintenance
cost for the pumping of the effluent to the storage ponds have been included in Section
IV with sewage treatment costs since the reuse of the sewage treatment plant effluent
by spray irrigation is an essential part of the overall sewage treatment scheme.
Timing for the different components of the effluent reuse system differs from that for
the sewage collection system. Sewage collection utilities are required as different
areas within the District service area are developed. Outfall sewers are required to
developed areas whether there are 100 or 1000 people in the area. The sizing and
location of the reuse pipelines and effluent storage ponds, on the other hand, is based
on the average daily flow to the sewage treatment plant. Therefore, the construction
j of some of the components of the reuse system are anticipated to lag behind the
1 completion of the sewage collection system by several years.
Year
1
5
10
TABLE VI -A
EFFLUENT REUSE AND STORAGE SYSTEM COST ESTIMATE
Description of Facility Cost
9,900 feet of 8" $247,500
Pond #1, 80 a.f. 150,000
TOTAL YEAR 1 $397,500
4,950 feet of 8" $123,750
Pond f/2, 120 a.f. 200,000
TOTAL YEAR 5 $3239750
1,650 feet of 8" $ 41,250
Pond #3, 80 a.f. 150,000
TOTAL YEAR 10 $191,250
TOTAL EFFLUENT REUSE SYSTEM $912,500
CONSTRUCTION COST
Add 25% Engineering, Contingencies 228,000
TOTAL EFFLUENT REUSE
SYSTEM PROJECT COST $1,140,500
VI -3
VII -1
SECTION VII
FINANCING AND OPERATIONS
GENERAL
The area encompassed by the Landis Sanitation District is presently unincorporated. It
is recommended that a Sanitation District be formed to provide a legal governmental
entity which can administer, finance, and construct the sewerage system. The District
` will also provide for the perpetual operation and maintenance of the system to the
benefit of its customers.
Under Colorado law, a Sanitation District is a quasi -municipal non-profit corporation
having powers of management, taxation, and condemnation. The District is governed by
an elected Board of Directors of five persons.
The District Board would administer the investment and construction contracts. The
Board would also operate the system and determine the amounts and sources of revenue.
r I The estimated capital requirements and recommended probable rates, charges and tax
'. levies are presented in this section.
j In rapidly developing areas such as Lake Springs Ranch and Spring Valley Ranch, it is
essential that the utility systems be constructed in phases as described previously in
this Report. Sewerage facilities should be built in logical increments only as needed
by actual (rather than predicted) land and building development. Any parts of the
l sewerage system that are constructed and not utilized represent an economic loss and
such unneeded construction should obviously be avoided. Phased scheduling will minimize
potential losses and result in a less costly sewerage service.
i
It is assumed that areas will develop in a logical sequence so that the investment costs
for sewerage facilities will be in line with projections. The payment of tap privilege
fees as described later will ensure the fair apportioning of system costs and protect
the financial integrity of the District.
l
Fiscal information is provided in Appendix C of this Service Plan Report, as prepared
by Hanifen, Imhoff Inc.
i
VII -2
1 CAPITAL REQUIREMENTS
The total estimated capital requirements for different development phases are given in
Table IV of Appendix C at the end of this Service Plan. The cost estimates are as
derived in Sections IV, V, and VI of this report. It is anticipated that District formation
costs and funding for the sewerage facilities will be born entirely by developers within
the District and the users of the system. The availability of federal or State grants
1 to assist District development is doubtful and no allowance has been made herein for
J such grants.
The capital requirements do not include land acquisition costs for rights-of-way needed
for facilities within the District boundaries, as it is assumed that the District will
require developers to provide the required easements. 1 -and acquizition costs for the
sewage treatment plant site have been estimated and included as a capital requirement.
For purposes of capital investment analyses, the number of customer tap units served
have been estimated for each construction phase. The tap unit used for convenience,
as developed in Section IV, is termed an equivalent residential (EQR) tap. An EQR is
represented by a single-family residence or living unit with an average resident population
of 2.8. The EQR basis is a convenient method to approximately equate single-family
residences, duplexes, apartments, townhouses, condominiums, and commercial properties.
INCOME REQUIREMENTS
.r J Total District operating income must be sufficient to cover debt service for bond issues,
system operation and maintenance costs, and commodity purchases. The District's income
sources include tap fees, property taxes derived from the tax (mill) levy, and service
charges for such service being available.
RATES AND CHARGES FOR SERVICE
The actual rates and charges for service will be set by the District Board of Directors.
Tentative rates and charge schedules have been computed for the purpose of informing
the developers and land owners in the District of the probable cost of sewer service.
Two considerations are significant in the establishment of a rate structure:
1. The rates set must produce enough income to sustain system operation, and
J 2. The rates should be set equitably so that persons will pay for service in approximate
` proportion to actual benefits.
VII -3
The various potential methods of obtaining District income and the recommended initial
rates for the Landis Sanitation District are discussed following. The initial rates should
be adequate on a long-term basis if development proceeds as projected.
Sewer Service Charge. This is a charge which should be billed monthly as a payment
for sewer service. This charge is designed to pay the cost of the operation and
maintenance of the sewer system. The sewer service charge has been estimated to be
in the range of $10 to $15 per month per EOR for Landis Sanitation District.
Sewer Standby Charges. In order to insure partial District income (as needed for debt
service retirement) it is necessary to establish a standby charge schedule. Provisions
for standby charges must be contained in a firm contract between the Developer and
the land buyer, made at the time of sale; or the Developer may otherwise guarantee
standby charge income. The standby regulations are to include the following provisions.
-� 1. Standby charges may be deferred up to 24 months after sewer service is available,
as needed to serve the subject property.
2. The standby charge for sewer will be based on a predicted equivalent residential
unit to be constructed on the property.
3. In the event that actual construction on a particular lot results in more EQR
l units than have been paid for on a standby charge basis, then the District shall
assess an additional system development fee to be paid before connection.
System Development Fees. "Tap Fees" are those obligated by the developers at the time
of utilities installation. These fees are designed to pay part of the system capital,
costs which cannot be amortized with service charges and tax levies. The fees are
capital contributions to construction as required to result in economically feasible
systems. The amounts may be included in land sales prices or collected separately as
tap fees, which is reasonable since the availability of utility services immediately
increases land values. The tap fee does not include the cost of physically making the
actual connection for utility service when the service lines are installed.
It is recommended that the District's Board establish sewer system development fees
considering the capital cost of construction. Since collection lines are to be paid for
by the developers, a uniform fee per unit EQR value is reasonably equitable.
VII -4
Connection Charges. There will be no significant connection charge for customers
tapping into sewer system. The District will have a nominal inspection fee payable at
the time of connection. However, it will be the responsibility of each customer to
have installed his service line from the collector sewer to the building. The user will
remain as owner of these lines and responsible for maintenance. If, because of street
paving schedules, it is determined desirable to install portions of the service before
actual building construction, then these service line costs can be recovered in the form
of an increased connection charge. Note, that this procedure will actually result in a
savings to property owners since they will not have to cut and replace paving.
Tax Income. A mill levey on property is a common method of obtaining revenue to
support sanitation districts. The sewer system is a property of the entire District and
I raise property values in the District. Even though a property has no existing improvements
1 which utilize the utilities, by being in the District the property normally has the right
1 to use the District's facilities whenever desired and economically feasible.
It is recommended that the District, plan to operate with a tax. If later found desirable,
this levy may be lowered or raised to suit the income requirements of the District.
Developer Constructed and Contributed Utilities. It is currently planned that outside
builders and general contractors will take responsibility for actual development of
specific neighborhoods, which will include installation of neighborhood sewer lines and
appurtenances within the neighborhood. They will connect to District installed sewer
trunk and collector lines in a pre -designed manner consistent with the District's overall
Master Plan. The developers will pay for, and install, sewer lines and appurtenances
after their layouts and designs have been approved by the District. The system
development fees, service charges, and tax levies charged by the District for sewer
service can be correspondingly lower because of the contribution of the neighborhood
utility lines to the District upon their final completion and acceptance.
jAPPENDIX A
DESCRIPTION OF SERVICE AREA
LANDIS SANITATION DISTRICT
•ALTA OWNER'S POLICY —Amended'.Qt17/70
_.,._.
SCHEDULE A
l Order No.: 6172 Policy No.: 0-389402
Date of Policy: JUNE 28, 1979 AT 4.30 O'CLOCK P.M. ` Amount of Insurance: $ 1,100,000.00
1. Name of Insured: .
SPRING VALLEY HOLDING, LTD.
2. The estate or interest in the land described herein and which is covered by this policy is:
FEE SIMPLE
3. The estate or interest referred to herein is at Date of Policy vested in:
SPRING VALLEY HOLDING, LTD.
4. The land referred to in this policy is described as follows:
Township 6 South, Range 88 West; 6th P.M.'
Section 15: NW4
Section 16: All
Section 20: Lot 1, Lot 2, N2; N�6W4, and,SE4
Section 21: All
Section 22: Lot 1, W2Nt44, NW4S644'
Section 28: Lots 1, 2, 4, 5, 10,`and.15 and E2
Section 29: tots 1, 2, 3, 8, 9, 10, 13, 14, 15, 16, 20,
21, 22, 23, 26, 30, 31, 33, 34, and 35
Section 32: Lots 2 and 3 and WZNE4
Excepting therefrom the following parcels heretofore conveyed out:
1. Property described in Deed from Raymond C. Hopkins a/k/a Raymond Hopkins and
Bernard A. Hopkins a/k/a Bernard Hopkins to Alvin W. Ould and George C. Ould
recorded July 9, 1965 in Book 367 at page 428 as Reception No. 230659.
Continued on Page 2-A
Page 2 S 7l' I:'0VA IZ T T X T I, l%;
GUARANTY COMPANY. .
Order No. 6172
Attached to and made a part of Stewart Title Guaranty Company Policy No. 0-389402
Continuation of Schedule A
--� 2.
Property described in Deed from Bernard A. Hopkins to Frank E. Bissing and
Betty J. Bissing recorded June 24, 1971 in Book 420 at page 173 as Reception
No. 250138.
3.
Property described in Deed:,from Alice N. Hopkins and Bernard A. Hopkins, a/k/a
Bernard Hopkins to Dan H. LeVan, Jr. and Patricia J. Levan recorded October 9,
1967 in Book 388 at page 329 as Reception No. 239150, and in Deed from Alice
`l
N. Hopkins and Bernard A. Hopkins a/k/a Bernard Hopkins to 0. Ray Jones and
J
Wanda Jean Jones recorded October 9, 1967: in Book 388 at page 331 as Reception
No. 239151.
4.
Property described in Deed from Bernard A. Hopkins a/k/a Bernard_Hopkins and
Alice N. Hopkins td`,Alvin-Ta,lbert�:Russell and Letha Mae Russell recorded
October 18, 1967 in Book 388 at page 426 as, Reception No. 239218.
5.
Property described in Deed*from Bernard A. Hopkins, a/k/a Bernard Hopkins and
Alice N. Hopkins to Graham Kizer, Myra Dell Kizer, Horace Wayne Kizer,
Genevieve Kizer, Kennieth E Kings Nita Sue King, Richard H. Atkins and
Evelyn Lucille Atkins recorded October 18, 1967 in Book 388 at page 427 as
Reception No. 239219.'
6.
Property described in Deed from Bernard A Hopkins, a/k/a Bernard Hopkins
and Alice N. Hopkins to ,Albert; P.,Spanheimer and Delores F. Spanheimer
recorded September 7, 1967,- ijiBook 387 at page 400 as Reception No. 238860.
7.
Property described in Deed from'Bernard A. Hopkins to Wesley Gene Curtis and
Marylyn Lindblade Curtis recorded August 8, 1973 in Book 448 at page 276 as
`l
Reception No. 259524, and in:Ideed from Bernard A. Hopkins to Dan H. Levan, Jr.
J
and Patricia J. Levan recorded August 8, 1973 in Book 448 at page 277 as
Reception No. 259525.
8.
Property described in Deed fr`om.Bernard A. Hopkins to Howard F. Hubbard and
Marie E. Hubbard recorded August 8,'1973 in Book 448 at page 284 as Reception
No. 259529.
l
R
9.
Property described in Deed from;Sprng Valley Ranch, Ltd., a Colorado Limited
Partnership to James Hannah Austin and Josephine Hamp Austin recorded July 11,
1978 in Book 512 at page 634 ;as Reception No. 286912.
J
10.
Property described in Deed from,Spri.ng Valley Ranch., Ltd., a Colorado Limited
Partnership to Sunbow Investments Partnership recorded April 30, 1979 in Book
527 at page 574 as Reception .No(,u;29378.8>;
11.
Property described in Deed from Spring Valley Ranch, Ltd., a Limited Partnership
to Patty L. Frederick recorded May 7, 1979 in Book 527 at page 951 as Reception
`
No. 293966.
Continued on Page 2-B
Page 2A
STIE:WAIZT TITLE
GUARANTY COMPANY
F-1
Continuation Form 203 -A -T
Order. No. 6172
Attached to and made a part of Stewart Title Guaranty Company Policy No. 0-389402
Continuation of Schedule A
Except property described as follows:
A parcel of land lying southerly of the southerly line of County Road No.
115, and northerly of a fence as constructed and in place, situated in
Lot 1, Section 20 and Lots 3 and 8 of Section 29, all in Township 6 South,
Range 88 West of the Sixth Principal Meridian, more particularly described
as follows:
�N
r: H
Beginning at a stone corner properly marked as the Quarter Corner between
Sections 20 and 29 of said Township and Range;',
thence N. 66035'21" W. 1078.65 feet to a point`'on the southerly right-of-way
line of said County Road, the; True Point of Beginning;.
thence along said southerly right-of;way line S. 72°34'00" E. 250.66 feet; -
thence leaving said southerly right-of-way lineS. 21°19'37" E. 1010.94 feet
to a point in a fence; {;
thence along said fence N 57° 59.' 58" W..157.39 feet;
thence N. 50°53'25" W. 497.50 feet;
thence leaving said fence N. 14°21-'18" W. 694.24 feet to the True Point of
Beginning..,«
COUNTY OF GARFIELD
STATE OF COLORADO
Page 2-B
.Sar„aro; (i:mror,
STE'%VAI:T rrITEE
GUARANTY COMPANY
r
ALTA OWNER'S POLICY -Amended 10/17/70
II SCHEDULE A
1 Order No.: 6173 Policy No.: 0-389400
Date of Policy: JUNE 28, 1979 AT 4:30 O'CLOCK P.M. Amount of Insurance: $900,000.00
1. Name of Insured: .
SPRING VALLEY HOLDING, LTD.
2. The estate or interest in the land described herein and which is covered by this policy is:
FEE SIMPLE
3. The estate or interest referred to herein is at Date of Policy vested in:
SPRING VALLEY HOLDING, LTD.
4. The land referred to in this policy is described as follows
,1
Section 14: WiSW4, SW4NW4
Section 15: S211E4, NW41\!E4, WgSE;, NE4SW4, Lots 1, 2, 3 and 4
j Section 22: NE -I4, WjkSE4, E-IAW4,-NE4SW4, Lots 2, 3 and 4
Section 23: E ZW 2, Lots 1, 2, 3and 4
Section 26: EAW4, Lots 1, 2, 5, 6, 7, 8 and 13
j Section 27: All of Section 27
' Section 28: Lots 3, 6, .7, 8, 9, 11, 12,13 and 14
Section 29: Lots 11, 12, 24; 25 and 32
l Section 32: Lots 1 and 4
Section 33: NE4, Lots 1, 2, 3, 4, 5 and 6
Section 34: WkNW4
EXCEPT those parcels conveyed to the Board of County Commissioners of Garfield
County by the deeds recorded February 6, 1931 in Book 159 at page 224 as Reception
No. 109221 and in Book 159 apage 225 as Reception No. 109224.
C ntinued on Page 2-A
gna
Page t S'1` Fi NV 1>.'1"1` g' L I;,
GUARANTY COMPANY
a.onunuauun roan <wwi
Order No. 6173
Attached to and made a part of Stewart Title Guaranty Company Policy No. 0-389400
Continuation of Schedule A
EXCEPT the following parcels, which have heretofore been conveyed out:
1. Doc. No. 277987 recorded in Book 495 at page 596 (Cabrinha)
2. Doc. No. 281051 recorded in Book 501 at page 393 (Clarke, 33 per cent)
Doc. No. 281052 recorded in Book 501 at page 395 (Carrithers 67 per cent)
3. Doc. No. 281588 recorded tn.Book 502 at page 387 (Klink)
4. Doc. No. 281622 recorded in'',Book 502 at page 467 (Clarke)
5. Doc. No. 282773 recorded in -Book 504 at page 751 (Solar Pathways, Inc.)
6. Doc. No. 289675 recorded in Book 518 at page 283 (Klink)
COUNTY OF GARFIELD
STATE OF COLORADO
n
Page 2—A
STE«'AIZT TITLL
OUARANTY COMPANY
�_l
J
��
J
APPENDIX B
SITE APPLICATION
FOR
SEWAGE TREATMENT PLANT
-� COLORADO DEPARTMENT OF HEALTH
Water Quality Control Division
4210 East 11th Avenue
Denver-$ Colorado 80220
(CATION FOR SITE APPROVAL OF CONSTRUCTION OR EXPANSION OF:
A SEWAGE TREATMENT PLANT AND
B) LIFT STATIONS HAVING OVER 20,000 GPD CAPACITY
APPLICANT:
ii ADDRESS: PHONE:
I Consulting Engineer's Name and Address:
IPHONE:
A. Information regarding new sewage treatment plant:
1. Briefly describe on a separate sheet of paper the reason for locating the sewage
treatment plant on this particular site. This should include, but is not
necessarily limited to, a description of the present and possible development
of the site location and service area.
2. Size and type of treatment facility proposed:
GPD: PE design
gal day capacity
% Domestic:
3• Location of facility:
Type
Present PE
to be served
% Industrial:
Attach a map of the area which includes the following:
(a) 10 -mile radius: all sewage treatment plants and lift stations.
(b) 5 -mile radius: domestic water supply intakes.
(c) 1 -mile radius: habitable buildings, location of potable water wells, and
an approximate indication of the topography.
4. Effluent will be discharged:
Watercourse
Subsurface disposal:
Evaporation:
Land:
Other:
State water quality classification of receiving watercourse(s)
5• Will a State or Federal grant be sought to finance any portion of this
project?
0
What is the present zoning for the proposed service area?
Present zoning of site area?
Zoning within a 1 -mite radius of site?
IWQ-3(rev. 1-78-40)
- 1 -
,l ?. What is the distance downstream from the discharge to the nearest domestic water
supply intake?
(name and address of supply)
What is the distance downstream from the discharge to the nearest other point
of diversion
name and address of user
I
8. Who has the responsibility for operating the facility?
l9. Who owns the land upon which the facility will be constructed?
Please attach copies of the document creating authority in the applicant to
construct the proposed facility.
10. Estimated project cost:
Who is financially responsible for the construction and operation of the
facility?
Names and addresses of all water and sanitation districts within 5 miles downstream
of proposed wastewater treatment facility site.
Attach a separate sheet of paper if necessary.
12. Is the facility in a 100 year flood plain?
If so, what precautions are being taken?
Has the flood plain been designated by the Colorado Water Conservation Board,
Department of Natural Resources?
If so, what is that designation?
13. Please include all additional factors that might help the Water Quality Control
Commission make an informed decision on your application for site approval.
WQ-3(rev. 1-78-40) - 2 -
JB. Information regarding lift stations:
i The proposed lift station when fully developed will generate the following
additional load:
Population Equivalent
j Peak Hydraulic (MGD) to be served:
i 2. Is the site located in a 100*year flood plain?
If yes, on a separate sheet of paper describe the protective measures to be taken.
3. Where will the overflow be discharged?
4. Name and address of facility providing treatment
5. The proposed lift station when fully developed will increase the loading of the
facility to % of hydraulic and % of organic capacity.
C. If
w
di or acaie a ency send the agency
D. Recommendation of qovernmental authorities:
tion.
I Please address the following issues in your recommendation decision. Are the proposed
J facilities consistent with the comprehensive planning for the area and with other plans
including the 201, 208, 209 and 303(e) plans? if you have any further comments or
questions, please call 388-6111, Extension 378.
Recommend Recommend No
Date Approval Disapproval Comment Signature of Representative
Local Government Cities or Towns, if inside
municipal boundary or within 3 miles, and
Sewer District)
'.I
Board of County Commissioners
r
Local Health Authority
City/County Planning Authority
Regional Planning Agency
i
Council of Government
State Geologist
Date:
Signature of Applicant
District Engineer Action:
'I
Recommend Approval: Recommend Disapproval
Date:
Signature
WQ-3(rev. 1/78-40) _ 3 -
APPENDIX C
FINANCING OVERVIEW
LANDIS SANITATION DISTRICT
GARFIELD COUNTY, COLORADO
LANDIS SANITATION DISTRICT
FINANCING OVERVIEW
Contents
Financial Overview of Proposed District
Table I Summary of Assessed Valuation
Lake Springs Ranch and Spring Valley Ranch
Table II Sales Projections
Residential Households
Table III Determination of Assessed Valuation (Res. & Comm.)
Lake Springs Ranch
Spring Valley Ranch
Table IV Phased General Obligation Bond Financing
Use of Proceeds (1984 Value)
Table V Financing Plan for Phased Development
Financing Overview
Following consultation with the engineering firm of
McLaughlin Water Engineers of Denver, Colorado and the in-
vestment banking firm of Hanifen, Imhoff Inc., the proponents
of the Landis Sanitation District have determined that the
construction of certain public improvements as further
outlined in the text of this Service Plan should be funded
with proceeds received by the District from the authorization
and sale of general obligation bonds. The proposed bonds are
to be authorized and issued in accordance with the Special
District Control Act of the State of Colorado Legislature.
It is estimated that the bonds, when issued, will mature
within a period not to exceed twenty (20) years from the date
of issuance, having a first maturity date for principal
redemption due not later than three (3) years from the date
of issuance as required by state statute. The maximum
interest rate for the bonds shall not exceed sixteen (16%)
percent and the maximum underwriting discount shall not
exceed five (5%) percent of the par amount of the bonds. The
proposed Financing Plan (Table V) demonstrates current market
conditions and illustrates an interest rate of eleven and
one-half (11.5%) percent and an underwriting discount of
three (3%) percent. The exact interest rates for the bonds
and underwriting discount will be established at the time the
bonds are offered for sale by the District and will reflect
market conditions at such time.
It is proposed that the public improvements will be completed
in a form phase development. (See Table IV). The estimated
costs for these improvements has been determined to be
$4,738,000 in 1984 dollar values. Based upon the past ten
years of recorded cost escalation schedules published by the
Engineering News Record Construction Cost Index of March,
1984, construction costs for such improvements as
contemplated by the District have increased at an average
rate of 7% per annum. Based upon similar escalation it is
probable that the value for the improvements will be approxi-
mately $6,100,000 when constructed and financed. To
accommodate increased costs, issuing expenses for various
bond issues and capitalized interest, it is proposed that the
District will authorize the issuance of bonds in an amount
not to exceed $8,000,000. This authorization will require
the approval of the District voters to be held following the
formation of the District. The bonds will contain adequate
call provisions to allow for prior redemption of the bonds or
a refinancing of the bonds sold by the District. The actual
amount of bonds authorized and issued by the District shall
be determined by final engineering estimates or actual
construction costs.
Financing Overview(cont.)
The source of revenue available to the District for the re-
payment of the bonds is a mill levy, estimated at 10 mills,
income from sewer tap fees, estimated at $1500 per tap.
Revenue recieved from user service charges and a portion of
the mill levy revenue, as required, is anticipated to be used
for operation and maintenance expenses of the District.
Estimates ofa assessed valuation are based upon the projected
buildout schedule (See Table I) proposed for the District.
As illustrated the projected assessed valuation upon comple-
tion is estimated to be $163,806,000.
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TABLE IV
GARFIELD COUNTY, COLORADO
LANDIS SANITATION DISTRICT
Phased General Obligation Bonds
Use of Proceeds
I Series 1985
Sewage Treatment Plant $ 450,000
Outfall Sewers 289,000
Reuse Pipes and Ponds 497,000
Capitalized Interest (1 yr. @ 11.5%) 169.625
Cost of Issuance 69,375
Total Phase I $1,475,000
II Series 1987
Filtration Plant $ 150,000
Outfall Sewers, 1 381,000
Outfall Sewers, 2 605,000
Capitalized Interest (1 yr. @ 11.5%) 155,825
Cost of Issuance _ 63,175
Total Phase II $1,355,000
III Series 1990
Outfall Sewers $ 9119000
Reuse Pipes and Ponds 405,000
Sewage Plant Expansion 350,000
Capitalized Interest (1 yr. @ 11.5%) 228,275
Cost of Issuance ____90,725
Total Phase III $1,985,000
IV Series 1997
Sewage Treatment Plant $4609000
Reuse Pipes and Ponds 2409000
Capitalized Interest (1 yr. @ 11.5%) 969025
Cost of Issuance 387975
Total Phase IV $835,000
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The Financial Cent(
Suite 466
1825 Lawrence Street
Denver, Colorado 80202
(303)294.0233
C®ns-olfateZ far%teii��cServices,�Jrr��
July 28, 1983
MEMO TO: Steve Bell, Senior Vice President, Hanifen Imhoff, Inc.
FROM: Jean C. Ackerman, CMSI
Qok-
RE: POPULATION AND ASSESSED VALUATION PROJECTIONS FOR LANDIS
SANITATION DISTRICT
Attached is a set of worksheets which project total unit sales, total
households, and total assessed valuation by year for both Lake Springs Ranch
and the portion of Spring Valley Ranch that is to be included In the Landis
Sanitation District.
The sales projections and household projections for Spring Valley Ranch are
consistent with the market study and fiscal Impact studies for that
J property. The sales projections for Lake Springs Ranch are consistent with
J their independent estimates.
The assessed valuation projections are consistent with the new legislation
and the Garfield County Tax Assessor's "rules of thumb" In projecting
valuation.
Should you have any questions, please feel free to call on me.
JCA:jg
cc: J. Barry Morrissey
Bob Sternberg
hila I Terre I I
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