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COLORADO
RAW WATER SUPPLY AND
DISTRIBUTION PLAN
RIVER EDGE COLORADO
GARFIELD COUNTY, COLORADO
OWNER/APPLICANT:
CARBONDALE INVESTMENTS, LLC
7999 HWY 82
CARBONDALE CO 8 1 6 2 3
970-456-5325
CONSULTANT:
8140 PARTNERS, LLC
PO BOX 0426
EAGLE, CO 81631
JANUARY 14, 2011
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
RAW WATER SUPPLY AND
DISTRIBUTION PLAN
RIVER EDGE COLORADO
GARFIELD COUNTY, COLORADO
TABLE OF CONTENTS
INTRODUCTION 4
A. BASIS 4
B. PURPOSE AND SCOPE OF PLAN 4
C. FINDINGS 5
II. PROJECT LOCATION AND DESCRIPTION 6
A. PROJECT LOCATION 6
B. PROJECT DESCRIPTION 6
III. IRRIGATED AREAS, REQUIREMENTS AND DEMAND 8
A. IRRIGATED AREAS 8
1. COMMUNITY SPACE TRACTS 8
2. RESIDENTIAL LOT AREAS 8
3. OTHER TRACTS WITHIN THE PROJECT 9
4. AREAS OUTSIDE THE PROJECT 9
B. IRRIGATION DEMAND 9
1. METHODOLOGY 9
2. CALCULATED IRRIGATION DEMANDS 12
IV. RAW WATER IRRIGATION SOURCES 12
A. DELIVERY CAPABILITIES AND LOCATIONS 12
B. WATER AVAILABILITY 12
V. POTENTIAL DETENTION PRE-TREATMENT AND TREATMENT 13
A. GENERAL INFORMATION 13
B. TRACT AC PRE-TREATMENT DETENTION BASIN 13
C. TREATMENT 13
VI. RAW WATER SYSTEM DIVERSION (TRANSFER PUMP STATION) AND
DISTRIBUTION PUMP STATION DESIGNS 13
A. DIVERSION FACILITY OR TRANSFER PUMP STATION 14
B. DISTRIBUTION PUMP STATION 15
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Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
VII. RAW WATER DISTRIBUTION SYSTEM DESIGN 16
APPENDICES
APPENDIX A: VICINITY MAP AND PROJECT SITE DRAWING
APPENDIX B: IRRIGATED AREA CALCULATIONS
APPENDIX C: IRRIGATION DEMAND CALCULATIONS
APPENDIX D: DIVERSION/TP STATION, TREATMENT, AND DP STATION
SCHEMATIC AND PROCESS FLOW DIAGRAM
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Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
I. INTRODUCTION
A. BASIS
This Raw Water Supply and Distribution Plan ("Plan") has been prepared in support of
an application for PUD Plan Review ("Rezoning") and Subdivision Review ("Preliminary
Plan") for the proposed River Edge Colorado ("Project") in accordance with the
requirements of the Garfield County Unified Land Use Resolution of 2008 ("ULUR"), as
Amended. This Plan specifically addresses the requirements of Section 7-105 and 7-106
of the ULUR, and along with the Water Treatment and Distribution Design Report and
the Water Supply Plan document that a water distribution system meeting the criteria
of Sections 5-501G.11.d, 5-501G.11.f, 5-502C.13, 6-202.M, 6-301.C.7.m, and 7-106 of
the ULUR is available and will be designed and constructed to serve the Project and that
adequate water supply, as required by Section 7-105 of the ULUR, is available for the
Project. This Plan is supported by other referenced documents submitted as part of the
REC rezoning and preliminary plan applications including the River Edge Colorado PUD
and Subdivision Drawing Package ("Drawing Package").
Specifically, this Plan provides Garfield County with evidence that provision has been
made for an adequate raw water supply for the Project, as a component of the overall
water supply, and that an adequate raw water delivery system can be design,
constructed and made available, as a component of the overall water delivery system.
With respect to the potable water treatment and delivery system to the Project, the
design of the potable water treatment and distribution system is documented in the
Water Treatment and Distribution System Design Report. The Water Supply Plan
documents the legal supply and source for the potable and raw water systems are
available.
Once built, the raw water system described in this Plan will be owned and operated by
the River Edge Colorado Property Owners Association, Inc. ("POA"). The ownership and
operation of the potable water supply system is documented in the Water Treatment
and Distribution System Design Report.
B. PURPOSE AND SCOPE OF PLAN
The primary purpose of this Plan is to provide evidence that provision has been made
for adequate raw water supply and distribution to serve the Project in accordance with
Section 7-105 and 7-106 of the ULUR.
The Water Supply Plan provides adequate evidence that a legal water supply and
appropriate sources are available for the Project. Pursuant to the Water Supply Plan for
the Project, the Project must be served by a raw water system if demand for potable
water to support irrigation within the Project will exceed 7 acres. Based on the
development plans, irrigation water demand will exceed the potable water allowance
for irrigation and, as a result, all additional irrigation demand associated with the Project
shall be met by a raw water system utilizing the Glenwood and Staton Ditch water rights
detailed in the Water Supply Plan. Pursuant to Section 7-105, the Water Supply Report
provides the following documentation as evidence for such findings, which evidence is
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Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
summarized in this Plan with respect to water to support the raw water demands of the
Project:
• An estimate of the water supply requirements for the proposed
development through build -out conditions;
• A description of the physical source of water supply that will be used to
serve the proposed development;
• A description documenting the ability of the supply to meet water
quality requirements;
• An estimate of the amount of water yield projected from the proposed
water supply under various hydrologic conditions;
• Water conservation measures, if any, that may be implemented within
the development;
• Water demand management measures, if any, that may be
implemented within the development to account for hydrologic
variability;
• Proof of a legal water supply
The primary goal of this Plan is to provide a preliminary layout and design of a raw water
system that would provide irrigation water to the individual residential lots, community
space tracts (i.e., parks, open space, common areas, orchard/garden, and neighborhood
center), and utility and right-of-way tracts within the Project. In accordance with Section
7-106.A, this Plan documents that a properly sized and adequate delivery system
meeting the minimum design standards in Section 7-106A.3, in consideration of the
concurrently proposed potable water delivery system, can be designed, built and
operated to support the development of the Project. This Plan explains and summarizes
the irrigation water supply system and includes evaluating identified areas that would
be supplied with raw water service; reviewing irrigation ditch delivery capabilities;
providing necessary hydraulic analyses and calculations; and documenting appropriate
preliminary raw water irrigation system modeling. Hydraulic analyses and calculations
were prepared to aid in the layout and design of the raw water irrigation system. These
include demand calculations identifying the application and delivery rates of raw water
to the irrigated areas
The proposed raw water irrigation system was modeled to determine distribution pipe
layout, sizing, and the pump requirements. Modeling assumptions, methods and results
are presented in later sections of this Plan.
C. FINDINGS
The preliminary design of the raw water supply and distribution system has been
completed under the direction and review of William S. Otero P.E. (Colorado
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Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
Registration #32163). William S. Otero P.E. has determined that the Project can be
adequately served by a raw water distribution system, as shown herein and as depicted
in the raw water system engineering plans shown on the Irrigation System Plan, Series
SW05 in the Drawing Package, which proposed system meets generally accepted
engineering standards for the distribution of raw water, and requirements of the ULUR.
In addition, William S. Otero P.E. has determined that said distribution system can be
adequately supplied by the water rights associated with the Glenwood and Staton
Ditches as detailed in the Water Supply Report.
II. PROJECT LOCATION AND DESCRIPTION
A. PROJECT LOCATION
The Project is located along State Highway 82 ("SH 82") between the City of Glenwood
Springs and Town of Carbondale near the junction of County Road 110/113 ("CR 113")
and SH 82. The property is located almost entirely west of the Roaring Fork Transit
Authority ("RFTA") right-of-way and east of the Roaring Fork River and the Roaring Fork
Conservancy ("RFC") Conservation Easement (i.e., Grant of Conservation Easement
dated February 3, 2000, recorded at Reception Number 559036 and survey map,
recorded December 24th, 2008, recorded at Reception Number 760571 in the real
property records of Garfield County, Colorado). The Project straddles Cattle Creek which
is also located within the RFC Conservation Easement. A vicinity map is provided as
Exhibit 1 in Appendix A. The Project covers approximately 160 acres ("Project Site") as
shown and described on the Project Site drawing [Exhibit 2(a -d), Appendix A]. The
Project is proposed by Carbondale Investments, LLC ("CI").
B. PROJECT DESCRIPTION
The Project is a proposal to create a walkable clustered -form of residential development
with neighborhood amenities including naturalized open space and enhanced wildlife
habitat, community recreation, parks, and neighborhood agriculture that is designed to
serve the residents and preserve and provide reference to the rural character and
agricultural roots of the Roaring Fork Valley. The Project aims to have a strong historic
identity back to the days of 'old Colorado' when compact neighborhoods formed with a
strong sense of community based on the land and surrounding landscape. The REC
landscape aesthetic will be simple, informal, and place emphasis in the use of plant and
landscape materials local, adaptable and appropriate to the climate and environment of
the area. The Project will include approximately 366 residential units of various sizes
and types including 55 affordable homes and one exclusive executive lot for a custom
home. Housing types will range from attached homes to small single family attached
and detached garden homes, village homes, and larger estate homes. Smaller garden
homes are anticipated to be designed for younger residents that are looking for their
first home in the County, while village homes and estate homes will provide move up
opportunities for growing families. Densities in the Project are proposed at less than 21/2
units per acre. Lot sizes will vary from over 1 acre to approximately 5,000 square feet for
single family homes, and 1,700-5000 square feet of lot area for each garden home. Most
of the units back to either proposed active parks or reclaimed open space to help
enhance the connection to the land. The REC layout and design is depicted in the PUD
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Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
Plan, PUD01-03 Series and the Preliminary Plan PRPN01-03 Series of the Drawing
Package.
The architectural theme will be complementary to the traditional architecture of the
valley. Generally, exterior materials will include wood, stone, brick, stucco and cement
board siding. Varied roof heights and articulation of the front elevations will be used to
break up the massing and provide street -level appeal. Front porches and covered stoops
are included on homes to emphasize the entry and connection to the sidewalk and
street. Roofing will include dimensional shingles, metal, or other materials appropriate
to the building style and that roofs will generally be pitched. Gables, wall plane and
roofline articulation, bays, balconies, porches, canopies and arcades will be used in the
design of various buildings. The selection of materials will minimize the exterior
maintenance of the homes to help maintain a quality appearance for the long term.
The street pattern and pedestrian network are designed to facilitate community
interaction. Streets have detached sidewalks with designated cross walks at major
intersections and landscaped areas that create a comfortable environment for walking.
On -street parking in most areas will further buffer vehicular and pedestrian uses.
Internal circulation is maximized and dead-end streets are limited. Alleys are used
where appropriate to enhance the streetscape and achieve a mix of housing styles. A
soft trail system is used to connect open spaces and other common elements with the
sidewalk network. The homes are placed close to the streets to help define the
streetscape space and provide visual interest to pedestrians. Street trees and plantings
are proposed to enhance the aesthetics of the street.
The community is served with a variety of recreational facilities and a neighborhood
center that could include meeting room(s), fitness room, offices, kitchen, restrooms,
recreational facilities, and limited community service use such as a day care facility,
deli/coffee shop, or health club. Parks will provide informal recreational opportunities
within the community and will likely include tot lots, playfields, and trail system. The
west portion of the property is generally set aside as the naturalized area that buffers
the RFC Conservation Easement along the Roaring Fork River. The soft trails around the
property allow residents to enjoy the river and wetland areas without disrupting the
environment in conformance with the terms of the RFC Conservation Easement. More
than the minimum open space requirements will be met by the project. Nearly 50% of
the Project Site is in some form of open space, common area or park. Finally,
opportunities for productive and edible landscapes, including community gardens and
neighborhood orchards are integrated and dispersed in between the residential land
uses as gathering and focal places for residents connecting REC to its agricultural
heritage.
The combination of trails, recreation areas, and open space system with the ability to
engage in `interactive community agriculture' on a small scale will make REC a very
desirable place to live, filling a unique niche not yet met in Garfield County. This unique
combination will help establish a sense of place, foster community, and engage
residents with their immediate environment. It is intended this overall outdoor focus
will set the tone and become a major driver of the identity of REC.
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
III. IRRIGATED AREAS, REQUIREMENTS AND DEMAND
A. IRRIGATED AREAS
The potential irrigated areas were identified based on the PUD Plan, in consideration of
the landscape plans and standards included as part of the PUD Guide and planting
schedules and allowances. The lots and tracts discussed below are depicted on the PUD
Plan, PUD Series in the Drawing Package. The preliminary analysis represents a relatively
conservative approach to estimating overall demand. As a result, the system design
parameters represent a logical or reasonable maximum design framework.
1. COMMUNITY SPACE TRACTS
The proposed open space, parks and other community space areas shown on
the Preliminary Plan and PUD Plan were identified and the irrigated area for
each location was determined. Table 1 in Appendix B lists the gross acreage for
each community space based on the Preliminary and PUD Plans. Because many
community space areas contain a combination of parking lots, playgrounds,
sidewalks, non -irrigated areas, athletic courts, etc., only a percentage of each
area will be irrigated. Based on a preliminary program of uses, the resultant
irrigated areas were identified. The results from these assessments are also
shown in Table 1. Finally, each portion of the irrigated area was broken down by
vegetation type. There are four types of irrigated areas. These areas include
High Performance Lawn, Traditional Lawn, Low Maintenance Lawn and non-
irrigated areas. These categories are further discussed in Section III.B of this
Plan. The irrigated area breakdowns are also shown in Table 1. The total
irrigated area for community space areas is 32.51 acres per Table 1.
The Project proposes a series of pre -development reclamation activities
pursuant to the Reclamation Plan in Appendix U of the Impact Report. These
activities include grading and revegetating, in both permanent and temporary
forms of vegetative cover, nearly the entire Project Site. As such, it is anticipated
that areas outside of Filings 1 and 1B, which are anticipated to be developed
immediately following pre -development reclamation, will require some form of
temporary irrigation to assist in the establishment of the planned vegetative
cover over the first 2 to 5 years of growth. As a result, both the permanent and
temporary irrigation areas were also calculated and are also provided in Table 1.
2. RESIDENTIAL LOT AREAS
The proposed residential lots shown on the Preliminary Plan and PUD Plan were
identified and the irrigated area for these areas was determined based on the
average lot area coverage at buildout by homes, driveways, sidewalks, decks
and other impervious areas. It should be noted that the irrigated areas
identified herein differ from those used to determine developed stormwater
runoff. In each case, the assumptions used represent the most conservative lot
coverage rate for the analysis being performed. Table 2 in Appendix B lists the
gross acreage for each residential lot based on the Preliminary and PUD Plans.
Based on a preliminary coverage analysis in accordance with the standards
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Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
contained in the PUD Guide, the resultant irrigated areas were identified. The
result of this analysis is also shown in Table 2. Although the landscape plan and
standards contained in the PUD Guide promote the use of non -irrigated and
naturalized areas that would require less irrigation water, this Plan assumes that
all undeveloped or non -irrigated areas are placed into more highly consumptive
Traditional Lawn. This category is further discussed in Section III.B of this Plan.
The total irrigated area for residential lots is 24.58 acres per Table 2.
3. OTHER TRACTS WITHIN THE PROJECT
The Project includes right-of-way and utilities tracts. Both of these tracts include
a variety of landscaping requirements and landscaped areas. Table 3 in
Appendix B lists the gross acreage for each right-of-way and utility tract based
on the Preliminary and PUD Plans. Based on a preliminary program of uses and
landscaping plans and standards in the PUD Guide, the resultant irrigated areas
were identified. The results from these assessments are also shown in Table 3.
Finally, each portion of the irrigated area was broken down by vegetation type.
There are four types of irrigated areas. These areas include High Performance
Lawn, Traditional Lawn, Low Maintenance Lawn and non -irrigated areas. These
categories are further discussed in Section III.B of this Plan. The irrigated area
breakdowns are also shown in Table 3. The total irrigated area for right-of-way
and utility tract areas is 25.89 acres per Table 3.
4. AREAS OUTSIDE THE PROJECT
Two properties, to the north and east of the Project Site, have rights to
Glenwood Ditch and Staton Ditch water at the same point of diversion/or
diversion structure. These properties lie east of the RFTA right-of-way and north
of the Project site and comprise approximately 67 acres of property. These
properties are not proposed to be irrigated from the raw water system at
present but may choose to be served in the future by the raw water system
through an agreement to expand the facility and share costs. The point of
diversion is designed to accommodate these properties so that they may
continue to obtain their irrigation water at this location or may choose to obtain
their water at the north end of the ditch as it enters their property. Agreements
and reservations are in place to accommodate the needs of these properties.
B. IRRIGATION DEMAND
1. METHODOLOGY
The basis for determining irrigation demand is based on the work of the
Northern Colorado Water Conservancy District ("NCWCD") as documented by
Brent Mecham in "Historical Reference ET for Northern Colorado Front Range"
dated December 2006. The established procedure for calculating the irrigation
demand is a function of several variables including the evapotranspiration
("ETo"), lawn type, precipitation, and irrigation application efficiency. The
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Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
following presents how the methodology was specifically utilized in this
environment.
The irrigation demand is a function of the local climate and the type of
landscaping to be irrigated. These parameters determine the ETo rate, which is
defined as the process of transferring moisture from the earth to the
atmosphere by evaporation of water and transpiration from plants. The ET() rate
is the historical grass reference evapotranspiration for the growing season of
April 1 through October 31 and is used to determine the amount of water a
typical landscape would require during this period. The ETo requirement is
satisfied in two ways, irrigation and precipitation. The historical ETo was used as
a preliminary planning tool to determine landscape water requirements and
determine raw water irrigation needs. The key inputs for determining irrigation
demand are:
(1) ET0 = Historical Grass Reference evapotranspiration for the growing
season of April 1 to October 31;
(2) IQ = Crop coefficient for cool season turf grass mowed at 2.0 to 3.0
inches and depending upon the various uses of the lawn;
(3) ETiawn = Water requirement for the lawn ETo x IQ;
(4) Rain = Historical rainfall;
(5) Eff. Rain = Effective rainfall 100% for April, 50% all other months;
(6) Water Need = ETiawn - Eff. Rainfall;
(7) I.E. = Irrigation efficiency which includes sprinkler system performance
and management capability; and
(8) IWR = Irrigation Water Requirement in inches (IWR = Water Need / I.E.).
Detailed ET0 data is not available for the immediate area. For purposes of initial
raw water system sizing, ET0 data collected and recorded by the NCWCD was
utilized. NCWCD collects the data at twenty four (24) weather station locations
within the District. The ET0 data is logged daily during the months of March
through October and the precipitation data is logged daily.
For this Plan, three foothill weather stations were selected as most similar to
the Project Site in elevation and climatic conditions. The three weather stations
utilized include Boulder (elevation 5430 ft), Hotchkiss (elevation 5547 ft), and
Cedaredge (elevation 6404 ft). Data from the weather stations was taken for the
period 2006-2009. Data was obtained from the Colorado Agricultural
Meteorological Network ("COAGMET") found at:
http://ccc.atmos.colostate.edu/"coagmet/index.php. The ETo was then broken
down for each site into a total monthly value for each growing year. The ETo
was then averaged amongst all monthly values into a single monthly number
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Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
over the four seasons. Boulder alfalfa (ET0) and Boulder grass (ETo) were used to
determine a grass to alfalfa conversion ratio that could be applied to the
Cedaredge and Hotchkiss sites to determine grass growth rates for those sites.
While the Cedaredge and Hotchkiss sites provided verification of the Boulder
grass (ET0) numbers, the averaged grass (ET0) amongst all three sites was not
conservative enough to utilize for determining the irrigation demand. Therefore,
the Boulder grass (ET0) numbers were used to estimate irrigation demand. The
data and calculations are summarized in Table 1 in Appendix C.
The irrigation demand has been calculated for the following lawn types. The
crop coefficients (Kc) were taken from the NCWCD.
■ High -Performance Lawn ("HPL") — Ideal for heavy use such as
sports fields, high -use parks, or requires an aesthetic
appearance because of surrounding uses. The High Performance
Lawn has a crop coefficient of Kc = 0.90.
• Traditional Performance Lawn ("TPL") — Found in most
residential neighborhoods, parks, businesses, shopping centers,
etc. where foot traffic and uses are not excessive. The
Traditional Lawn has a crop coefficient of lc = 0.81.
• Low Maintenance Performance Lawn ("LPL") — Seldom used for
activities but is used to cover the ground to control erosion,
weed infestation, or serve as a firebreak. Traffic medians,
greenbelts, detention ponds, or even home lawns can fall into
this category. Typically these lawns require less mowing,
fertilizer and water. The Low Maintenance Lawn has a crop
coefficient of Kc = 0.72.
The water requirement for a lawn (ETiawn) was calculated per the NCWCD
methodology of: ETiawn = ETO x KC.
The average monthly precipitation data (Rain) from the Carbondale weather
station as provided by http://countrystudies.us/united-
states/weather/colorado/carbondale.htm. The effective rain ratio (Eff. Rain)
was taken from the NCWCD. The Effective Rain Ratio is assumed to be 100% for
April, 50% for all other months. The irrigation efficiency (I.E.) was taken from the
NCWCD. The irrigation efficiency is assumed to be 80% effective with a 20% loss.
These values were determined to be sufficiently conservative based on the
extensive water saving measures proposed at REC and the percent of the total
irrigated area under the direct control of the raw water system operator.
Table 2 in Appendix B summarizes the resulting irrigation demand for each type
of lawn on a monthly basis based on the variables discussed above.
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Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
2. CALCULATED IRRIGATION DEMANDS
Table 3 and 4 in Appendix C summarize the resulting irrigation demand for the
Project by Filing based on the irrigation demand by lawn type and the irrigated
area distribution in Table 1, 2 and 3 in Appendix B.
The total irrigation demand for the Project excluding temporary irrigation is
172.61 acre/ft annually or a flow rate of 0.59 cfs in October to 2.08 cfs in July
over eight hours six days per week. Peak delivery rates are assumed to be 1.3
twice the calculated demand rate of 2.08 cfs or about 2.6 cfs to provide for
offsite water delivery north of the Project Site. Delivery demands are considered
to be similar on the adjacent property at about 12 acres of irrigated land for
purposes of preliminary analysis.
IV. RAW WATER IRRIGATION SOURCES
A. DELIVERY CAPABILITIES AND LOCATIONS
The Project has irrigation rights on the Glenwood and Staton Ditches. These irrigation
ditches are the most feasible sources of raw water for the irrigation system.
Hydrographs were not created for the irrigation ditch since the Glenwood Ditch flows
full under all conditions from April 1 until October 31.
The Glenwood Ditch currently is tapped where it intersects Cattle Creek. The Staton
Ditch diverts water upstream from the point of intersection with the Glenwood Ditch.
Staton Ditch water may be alternatively left in Cattle Creek to deliver the water to a new
point of diversion at the intersection of Cattle Creek and Glenwood Ditch. Alternative
delivery is being reviewed by CI to simplify irrigation programs within the Project.
B. WATER AVAILABILITY
As documented in Appendix B of the Water Supply Plan, Resources Engineering reports
the Glenwood Ditch is decreed for 50 cfs for irrigation uses and Staton Ditch is decreed
for 5.18 cfs for irrigation uses. CI owns 24.47% of the shares in the Glenwood Ditch
Company, equating to 12.23 cfs. Historically, the Glenwood Ditch has had a full water
supply, even in critically dry years. A review of diversion records shows an average
diversion of approximately 15,000 acre feet per year and a dry year diversion of 22,000
acre feet. CI's share of the Glenwood Ditch is 3,700 acre feet per year and 5,400 acre
feet in dry years. The Staton Ditch diversions from Cattle Creek averaged 900 acre feet
per year. CI owns 4.36 cfs of the 5.18 cfs decreed to the Staton Ditch.
Together, these water rights have historically irrigated 260 acres. The water court Case
No. W-2206 for the Unocal Sanders Ranch determined that the historic consumptive use
is 439 acre feet on 260 irrigated acres of which the Project Site represents
approximately 150 acres of the total irrigated areas. There has always been an adequate
physical supply to meet the full irrigation demand on the property. River Edge Colorado
does not anticipate the need for any water conservation or water demand management
measures due to variations in hydrologic conditions.
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Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
V. POTENTIAL DETENTION PRE-TREATMENT AND TREATMENT
A. GENERAL INFORMATION
The irrigation system will consist of diverting the raw water from the irrigation ditch
(inflow); transferring it to a temporary pre-treatment detention to dropout larger debris
and treating it, as necessary; and distributing (outflow) it to the residential, community
spaces and utility and right-of-way tracts for irrigation. A pre-treatment detention basin
may or may not be necessary to remove sediment and balance the irrigation inflow and
outflow, but has been provided for in the preliminary design. This is further explained in
the following subsections.
B. TRACT AC PRE-TREATMENT DETENTION BASIN
Tract AC was chosen as a preferred location for the pre-treatment detention basin and
Tract AG for the treatment and distribution system for the Project's raw water system.
The tracts are centrally located along the eastern edge of the Project and located near
the current diversion point from the Glenwood Ditch. The PUD Plan shows the location
and maximum extent of the proposed pre-treatment detention basin. The pre-
treatment detention basin would be approximately four to 6 feet deep, with the entire
volume available for raw water irrigation pre-treatment detention. The detention pond
would be designed to provide turnover at least once in every 72 hours. Appendix D
shows the schematic intake facility assuming the need for a pre-treatment basin. Again,
a pre-treatment basin may be determined to be unnecessary based on more detailed
analysis of the water supply quality. The pre-treatment basin shall be designed with an
overflow to allow excess water to return to Cattle Creek or be transferred to drainage
facilities serving the constructed wetland pond within the RFC Conservation Easement.
C. TREATMENT
The physical source of water will be from the Roaring Fork River via diversion into the
Glenwood Ditch and from Cattle Creek via diversion into the Staton Ditch. Neither
source includes any irrigation water return flows which might add pollutants. As a result,
treatment is anticipated to minimal. At a maximum, treatment is anticipated to include
basic filtering. The filtering will benefit the overall operation and maintenance of the
system. Prior to final design, the water will be sampled to determine the necessary
treatment program. Cross connection controls and education/signage are important in
ensuring the proper use of the irrigation water and limiting potential effects to users
caused by improper use. Appendix D shows the schematic pumping / distribution facility
including the treatment facility.
VI. RAW WATER SYSTEM DIVERSION (TRANSFER PUMP STATION) AND
DISTRIBUTION PUMP STATION DESIGNS
Raw water will be diverted from the Glenwood Ditch near the intersection with Cattle
Creek, diverted to a temporary settling basin utilizing either a wet well or pre-treatment
pond, as described above, and then be distributed to the community through a
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Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
treatment system utilizing a distribution pump. Appendix D provides a schematic of
both the diversion facility/transfer pump station and distribution pump station.
A. DIVERSION FACILITY OR TRANSFER PUMP STATION
The main function of the Diversion Facility or Transfer Pump ("TP") station is to move
the raw water from the irrigation ditch or other raw water source to the pre-treatment
detention. It is anticipated that a direct diversion from the ditch to the pre-treatment
detention basin will be utilized, however, a TP has been also considered in the design.
Because the TP station may transfer the irrigation water directly from an irrigation ditch,
it is designed to pump at a constant flow rate, unlike the distribution system which will
pump at higher, variable flow rates over a shorter period of time.
The diversion facility or TP station must be capable of meeting the maximum irrigation
demands to keep the pre-treatment detention above the minimum water level
necessary to provide adequate flow to the distribution pump. The demands in acre-feet
were taken from Appendix C. The pump will be sized or diversion construction to deliver
an average rate of flow of 0.5 to 1.5 cfs, which level of flow will be determined at final
design, based on the inclusion of or lack of a pre-treatment basin. Any excess flow shall
return to Cattle Creek or diverted to the constructed wetlands within the RFC
Conservation Easement as may be provided for by changes in water rights being
requested to fulfill such purposes as required by the RFC Conservation Easement.
Adopted regulations and criteria are preferred to ensure consistency and compatibility
between the multiple components of the raw water irrigation system. If a TP station(s) is
utilized, it shall meet the following criteria at a minimum:
• The location shall be located on property that is owned or will be
conveyed to the River Edge Property Owners Association, Inc. The pump
station shall be located outside any regulatory floodplain and at least 18
inches above the water surface for the 100 -year design storm.
• The site and facility should be adequately sized to allow convenient
access for operation and maintenance. The diversion shall be accessible
via an all weather access.
• The system shall be designed with multiple pumps, each equipped with
a variable frequency drive ("VFD"). The pumps shall be vertical turbines
when pumping from a storage reservoir and rail mounted submersibles
when pumping directly from an irrigation ditch. The pump system shall
include one additional pump that is regularly engaged in the pumping
cycle to ensure that all pumps experience similar run times. The
additional pump shall be sized to allow for any single pump to be taken
out of service for repair or maintenance without reducing the capacity
of the pump system. All pump stations shall include a wet -well design
with an intake pipe and isolation valve.
• The system shall have a capacity of not less than one -hundred and
twenty percent (120%) of the irrigation demand while maintaining the
14
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
minimum delivery pressure. Pump efficiency shall be a minimum eighty
percent (80%) at the design operating point, whenever possible.
• The system shall be designed to function in an outdoor environment
and have enclosures and covers as required for proper operation and
maintenance of the system. The pump shall include a skid or rail
assembly to support all pump components during shipment and to
serve as the installed mounting base. The skid or rail assembly shall be
of sufficient size to handle hydraulic forces and support the full weight
of all mounted components.
• Additional pump system design components shall include, but not be
limited to, motors, valves, gauges, mounting and support structures,
power and electrical equipment, control systems, operator interface
devices, alarms, supervisory control and data acquisition ("SCADA")
systems, monitoring devices, building requirements, installation and
operation instructions, and recommended maintenance procedures.
• The Construction Drawings for the irrigation pumping system shall show
a typical layout, elevation and plan views, and critical dimensions for the
pump system, building, wet well, etc.
Appendix D provides a schematic and process flow diagram of both the diversion
facility/transfer pump and distribution pump facility. It is anticipated that the required
TP pump would not likely exceed 5-10 hp.
B. DISTRIBUTION PUMP STATION
The main function of the Distribution Pump ("DP") station is to pressurize and distribute
the raw water from the pre-treatment detention or wet well. Because the DP station
will be designed to pump at higher, variable flow rates over a shorter period of time
than any TP station. Again, the initial design considerations involve a likely maximum
design scenario which will be refined at final design.
The DP station must be capable of meeting the maximum irrigation demands. The
demands in acre-feet were taken from Appendix C. The pump will be sized to deliver an
average rate of flow of 0.5 to 2.6 cfs (which level of flow will be determined at final
design); and total dynamic head ("TDH") set so that the minimum dynamic system
pressure is 70 psi and the maximum pipe velocity in the distribution system is less than
5 feet per second. Preliminarily, the DP station was assumed to generally be sized to
pump at a maximum 1,200 gpm at 231 feet TDH, which is equivalent to a discharge
pressure of 100 psi. Preliminarily, the DP station and pipe network has been sized to
meet the irrigation application rates which are dependent on the irrigation demands
presented in Appendix C.
Booster pumps and pressure reducing valves ("PRV") are not anticipated to be necessary
but the need for either will be evaluated at final design to ensure that pressures within
acceptable irrigation ranges are delivered to all lots and tracts. It is anticipated that the
15
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
DP station will include a wet well, which will be sized in accordance with the system
depending on the nature of the pre-treatment basin, if any.
Adopted regulations and criteria are preferred to ensure consistency and compatibility
between the multiple components of the raw water irrigation system. The DP station(s)
shall meet the same basic design criteria as the TP station except that additionally the
pump system shall include a pressure maintenance (jockey) pump for sustaining the
design pressure in the distribution system at all times. The requirement will be
determined during the pump station design and may be satisfied by one of the primary
pumps with a VFD.
If a pre-treatment pond is utilized, the intake structure will designed and installed
approximately one to two feet above the bottom. This configuration will keep debris on
the surface and the bottom from being pulled into the DP station wet well. This will also
allow the top three feet to be utilized for irrigation without exposing the intake
structure during normal drawdown. The additional depth of the intake structure will
allow the distribution system to use additional volume in the reservoir when necessary
(i.e. emergency situation, etc.).
The intake structure will consist of a self cleaning screen and an intake pipe
(approximately 10 -18 -inches in diameter) that connects to the pump station wet well.
The intake structure will be designed with a slight slope towards the pre-treatment
pond. If the pre-treatment pond is ever drained, the DP station intake structure and wet
well will also drain. The intake pipe will also be installed with an isolation valve so the
wet well can be pumped out when the pump station is winterized or needs to be
serviced.
Appendix D provides a schematic and process flow diagram of both the diversion
facility/transfer pump and distribution pump facility. It is not anticipated that the
required TP pump would not exceed 25 hp.
VII. RAW WATER DISTRIBUTION SYSTEM DESIGN
It is intended that all tracts and lots within the REC will eventually be irrigated by a
distribution system that will originate at and be supplied by the Glenwood Ditch. The
distribution system was generally aligned along and through existing and future streets,
parks, open space areas, and other similar corridors. The distribution system was laid
out with the intent of providing service to all areas while minimizing the amount of
infrastructure required. The distribution system is shown on the Irrigation System Plan,
Series SW05 in the Drawing Package.
The pipe network has been sized to meet the irrigation application rates which are
dependent on the irrigation demands presented in Appendix C. The pipe sizes and pump
TDH were set so that the minimum dynamic system pressure is 70 psi and the maximum
pipe velocity in the distribution system is less than 5 feet per second.
Criteria are preferred to ensure consistency and compatibility between the multiple
components of the raw water irrigation system. The distribution system shall meet the
following criteria at a minimum:
16
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
• The current proposed designed raw water diameter is 8 inches but
detailed modeling will determine actual diameters required. Raw water
irrigation lines shall be at least 4 inches in diameter. The minimum
depth of cover shall be 4 feet and the maximum shall be 6 feet,
whenever possible. The preliminary design anticipates that the system
will be purged of water each fall and winterized. Deeper burial depths
may be necessary under a different operation and management
strategy.
• The raw water irrigation system shall be designed with a minimum
dynamic pressure of 70 psi and a maximum dynamic pressure of 130 psi.
Pressures greater than 130 psi shall be reduced with a PRV. The
maximum velocity within raw water irrigation lines shall be 5 feet per
second.
• The preliminary design assumes the use of high density polyethylene
("HDPE") pipe. The raw water irrigation lines shall be AWWA C900 or
C905 polyvinyl chloride ("PVC") pressure pipe (pressure class 165) or
HDPE pipe. HDPE raw waterline is allowed to bend to a minimum radius
of 18 feet. The pipe shall be purple in color, if possible. Pipe markings
shall include the designation "CAUTION NON -POTABLE WATER" in
addition to the standard factory labeling required by AWWA.
• Underground marking tape shall be installed above raw water irrigation
lines when purple color pipe or appurtenances are not used for
construction.
• Accessible appurtenances (i.e. hatches, manhole covers, meter pit lids,
valve boxes, etc.), shall be stamped "IRRIGATION" and shall be primed
and painted with 2 coats of an approved purple rust inhibitive paint.
• Raw waterlines are required spaced a minimum of 10 feet from potable
waterlines.
17
APPENDIX A: VICINITY MAP AND PROJECT SITE DRAWING
App. A-1
BITS\MISC REPORT FIGURES \PUD-VICMAP.DWG
02 PRELIM PLAT \ENGINEERING & DESIGN\CAC
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SCALE IN FEET
Owner/Developer:
RiVentige
COLORADO
Carbondale Investments, LLC
7999 HWY 82
Carbondale, CO 81623
Phone No:
970.456.5325
Title:
VICINITY MAP
Prepared by:
8140 Partners, LLC
Date:
12/01/10
Exhibit:
App. A-2
BITS \MISC REPORT FIGURES \PUD -L
02 PRELIM PLAT\ENGINEERING & DESIGN \CAE
06.00 DESIGN TASKS \06.0
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LEGAL DESCRIPTION - PARCEL A (NORTH PARCEL) - RIVERS EDGE PUD
A TRACT OF LAND SITUATED IN THE EAST HALF OF SECTION 12, TOWNSHIP 7 SOUTH, RA1400 89 WEST, AND IN
THE WEST HALF OF SECTION 7, TOWNSHIP 7 SOUTH, RANGE 88 WEST OF THE 6TH PRINCIPAL MERIDIAN,
COUNTY OF GARFIELD, STATE OF COLORADO, BEING MORE PARTICULARLY DESCRIBED AS FOLLOWS:
B EGINNING GARFIELD COUNTY SURVEYOR'S 2 1/2" BRASS, FOUND IN PLACE, AND CORRECTLY MARKED AS THE
SOUTHEAST CORNER OF SAID SECTION 7, THENCE S 402515" E A DISTANCE OF 5479.54 FEET TO THE TRUE
P OINT OF BEGINNING;
THENCE, 5 891130" E A DISTANCE OF 1005.44 FEET TO A POINT ON THE WESTERLY LINE OF THE ROARING
FORK TRANSIT AUTHORITY TRANSPORTATION CORRIDOR EASEMENT;
THENCE, ALONG THE WESTERLY LINE OF SAID EASEMENT S 103052" E A DISTANCE OF 2644.53 FEET;
THENCE, 494.34 FEET ALONG THE ARC OF A CURVE TO THE RIGHT, HAVING A RADIUS OF 2815.00 FEET, A
CENTRAL ANGLE OF 10'03'42 AND SUBTENDING A CHORD BEARING OF S 149701" E A DISTANCE OF 493.70
FEET;
THENCE, 0 0995'09" E A DISTANCE OF 120.78 FEET;
THENCE, DEPARTING THE WESTERLY LINE OF SAID EASEMENT N 653814" W A DISTANCE OF 60,45 FEET;
THENCE, N 49'54'10" W A DISTANCE OF 64.72 FEET;
THENCE, N 49'54'10" W A DISTANCE OF 86.97 FEET;
THENCE, N 4811'10" W A DISTANCE OF 54.30 FEET;
THENCE, N 56'47'27" W A DISTANCE OF 123.97 FEET,
THENCE, N 8047'24" W A DISTANCE OF 93.00 FEET;
THENCE, N 203531" W A DISTANCE OF 11958 FEET;
THENCE, N 78'00'43" W A DISTANCE OF 33.84 FEET;
THENCE, S 7911'48" W A DISTANCE OF 37.80 FEET,
THENCE, S 2297'52" W A DISTANCE OF 56.05 FEET;
THENCE, 0 503557" W A DISTANCE OF 4548 FEET;
THENCE, N 82'32'35" W A DISTANCE OF 28.23 FEET;
THENCE, N 5997'03" W A DISTANCE OF 95.71 FEET,
THENCE, N 71'2014" W A DISTANCE OF 85.73 FEET;
THENCE, N 304310" W A DISTANCE OF 93.22 FEET;
THENCE, N 25'3992" W A DISTANCE OF 181.92 FEET;
THENCE, N 6510'24" W A DISTANCE OF 98.43 FEET;
THENCE, 0 85'02'33" W A DISTANCE OF 52.20 FEET;
THENCE, 0 56'33'52" W A DISTANCE OF 3934 FEET;
THENCE, S 2049'33" W A DISTANCE OF 42.96 FEET;
THENCE, 0 37'27'43" E A DISTANCE OF 21.60 FEET;
THENCE, N 7702'57" W A DISTANCE OF 89.66 FEET;
THENCE, S 7024'18" W A DISTANCE OF 70.95 FEET;
THENCE, N 88'59'39" W A DISTANCE OF 55.55 FEET;
THENCE, 5 84'28'58" W A DISTANCE OF 49.93 FEET;
THENCE, N 14'22'48" E A DISTANCE OF 68.20 FEET;
THENCE, N 0511'46" W A DISTANCE OF 77.59 FEET,
THENCE, N 18'20'05" E A DISTANCE OF 10,82 FEET;
THENCE, N 229310" E A DISTANCE OF 44.14 FEET;
THENCE, N 1034'58" E A DISTANCE OF 35.11 FEET;
THENCE, N 08'59'51" E A DISTANCE OF 47.16 FEET;
THENCE, N 03'48'08" E A DISTANCE OF 36.48 FEET;
THENCE, N 04'4552" E A DISTANCE OF 71.03 FEET;
THENCE, N 0737'51" E A DISTANCE OF 5466 FEET;
THENCE, N 29'28'14 W A DISTANCE OF 63.68 FEET;
THENCE, N 3290'44" W A DISTANCE OF 61.05 FEET;
THENCE, N 251729" W A DISTANCE OF 5552 FEET;
THENCE, N 3814'36" W A DISTANCE OF 44.36 FEET;
THENCE, N 5011'32" W A DISTANCE OF 37.73 FEET;
THENCE, N 585448" W A DISTANCE OF 54.16 FEET;
THENCE, N 87'51'35" W A DISTANCE OF 3697 FEET;
THENCE, N 57'33'47" W A DISTANCE OF 65.70 FEET;
THENCE, N 81'56'22" W A DISTANCE OF 85.02 FEET;
THENCE, N 0411'29" W A DISTANCE OF 158,65 FEET;
THENCE, N 3550'41" W A DISTANCE OF 41.30 FEET;
THENCE, N 54'46'03" W A DISTANCE OF 24.70 FEET;
THENCE, N 2851'45" W A DISTANCE OF 20999 FEET;
THENCE, N 11'5837" W A DISTANCE OF 3382 FEET;
THENCE, N 41'0396" E A DISTANCE OF 78.19 FEET;
THENCE, N 0629'01" W A DISTANCE OF 117.20 FEET;
THENCE, N 2005'27" W A DISTANCE OF 94.24 FEET;
THENCE, N 11'32'03" W A DISTANCE OF 63.83 FEET;
THENCE, N 07'57'46" W A DISTANCE OF 141.45 FEET;
THENCE, N 005814" E A DISTANCE OF 50,76 FEET;
THENCE, N 1917'44" W A DISTANCE OF 91.04 FEET;
THENCE, N 4411'59" W A DISTANCE OF 134.55 FEET;
THENCE, N 1023'49" W A DISTANCE OF 74.18 FEET;
THENCE, N 1993'06" W A DISTANCE OF 43.27 FEET;
THENCE, N 21'30'01" W A DISTANCE OF 72.23 FEET;
THENCE, N 0016'30" E A DISTANCE OF 217.77 FEET;
THENCE, N 0016'30" E A DISTANCE OF 312.94 FEET TO THE POINT OF BEGINNING, CONTAINING AN AREA OF
73.003 ACRES, MORE OR LESS.
THE NAME AND ADDRESS OF THE PERSON WHO CREATED THIS LEGAL DESCRIPTION IS:
JEFFREY ALLEN TUTTLE, P.LS. 33638
727 BLAKE AVENUE
GLENWOOD SPRINGS, COLORADO 81601
LEGAL DESCRIPTION - PARCEL C (SOUTHEAST PARCEL) - RIVERS EDGE PUD
A TRACT OF LAND SITUATED IN THE SOUTHWEST QUARTER OF SECTION 7, TOWNSHIP 7 SOUTH, RANGE 88
WEST OF THE SIXTH PRINCIPAL MERIDIAN, COUNTY OF 001100LD, STATE OF COLORADO, BEING MORE
PARTICULARLY DESCRIBED AS FOLLOWS:
BEGINNING AT A POINT ON THE WESTERLY RIGHT OF WAY UNE OF COLORADO STATE HIGHWAY 82, WHENCE A
2 1/2" BRASS CAP, FOUND IN PLACE AND PROPERLY MARKED AS THE SOUTHEAST CORNER OF SAID SECTION
7, BEARS S 7001'43" E A DISTANCE OF 2054.18 FEET;
THENCE, ALONG SAID WESTERLY RIGHT OF WAY LINE N 09'35'10" W A DISTANCE OF 188.14
THENCE, 282.60 FEET ALONG THE ARC OF A CURVE TO THE LEFT HAVING A RADIUS OF 2915.00 FEET, A
CENTRAL ANGLE OF 53117" AND SUBTENDING A CHORD BEARING OF N 12'21'49" W A DISTANCE OF 28249
FEET;
THENCE, DEPARTING SAID RIGHT OF WAY UNE S 900000" E A DISTANCE OF 49.74 FEET;
THENCE, S 0501'00" E A DISTANCE OF 202.70 FEET;
THENCE, 5 0494'58" E A DISTANCE OF 260.70 FEET TO THE POINT OF BEGINNING, CONTAINING AN AREA OF
0.234 ACRES, MORE OR LESS.
THE NAME AND ADDRESS OF THE PERSON WHO CREATED THIS LEGAL DESCRIPTION IS:
JEFFREY ALLEN TUTILE, P.L.S, 33638
727 BLAKE AVENUE
GLENWOOD SPRINGS, COLORADO 81601
Owner/Developer:
RiVerEdge
COLORADO
Carbondale Investments, LLC
7999 HWY 82
Carbondale, CO 81623
Phone No:
970.456.5325
LEGAL DESCRIPTION - PARCEL 8 (SOUTH PARCEL) - RIVERS EDGE PUD
A TRACT OF LAND SITUATED IN THE EAST HALF OF SECTION 12, TOWNSHIP 7 SOUTH, RANGE 89 WEST, AND IN
THE WEST HALF OF SECTION 7 AND IN THE NORTH HALF OF SECTION 18 TOWNSHIP 7 SOUTH, RANGE 88
WEST OF THE 6TH PRINCIPAL MERIDIAN, COUNTY OF GARFIELD, STATE OF COLORADO, BEING MORE
PARTICULARLY DESCRIBED AS FOLLOWS:
BEGINNING AT A POINT ON THE WESTERLY RIGHT OF WAY LINE OF COLORADO STATE HIGHWAY 82, WHENCE A
2 1/2" BRASS CAP, FOUND IN PLACE AND CORRECTLY MARKED A5 THE SOUTHEAST CORNER OF SAID SECTION
7, BEARS S 78'49'20" E A DISTANCE OF 2150.14 FEU;
THENCE, ALONG SAID RIGHT OF WAY LINE S 09'35'09 E A DISTANCE OF 401.79 FEET;
THENCE, S 099509 E A DISTANCE OF 1545.87 FEET;
THENCE, 626.05 FEET ALONG THE ARC OF A CURVE TO THE LEFT HAVING A RADIUS OF 1482.50 FEET, A
CENTRAL ANGLE OF 24'11'44" AND SUBTENDING A CHORD BEARING OF 5 21'41'02" E A OISTANCE OF 621,41
FEET;
THENCE, 5 3046'54 E A DISTANCE OF 387.28 FEET;
THENCE, 294.32 FEET ALONG THE ARC OF A CURVE TO THE RIGHT, HAVING A RADIUS OF 281500 FEET, A
CENTRAL ANGLE OF 559'26" AND SUBTENDING A CHORD BEARING OF 5 301711 E A DISTANCE OF 294.19
FEET;
THENCE, DEPARTING SAID RIGHT OF WAY LINE N 89'53'16 W A DISTANCE OF 218.07 FEET;
THENCE, N 40'23'30 W A DISTANCE OF 69,38 FEET,
THENCE, S 87'2029 W A DISTANCE OF 36.35 FEET;
THENCE, S 83'52'12 W A DISTANCE OF 10.80 FEET;
THENCE, N 58'27'19 W A DISTANCE OF 41.45 FEET;
THENCE, N 29'51'31 W A DISTANCE OF 8.28 FEET;
THENCE, N 24'1524 W A DISTANCE OF 25.22 FEET;
THENCE, N 69'0053 W A DISTANCE OF 9.87 FEET;
THENCE, S 87'31'44 W A DISTANCE OF 22.60 FEET;
THENCE, N 57'25'01 W A DISTANCE OF 17,28 FEET;
THENCE, N 5009'49 W A DISTANCE OF 26.07 FEET;
THENCE, N 46'21'12 W A DISTANCE OF 9.99 FEET;
THENCE, N 44'2005 W A DISTANCE OF 21.45 FEET;
THENCE, N 55'5008 W A DISTANCE OF 49,05 FEET;
THENCE, N 56'25'40 W A DISTANCE OF 49.94 FEET,
THENCE, N 68'12'23 W A DISTANCE OF 36.45 FEET;
THENCE, N 455494 W A DISTANCE OF 55.18 FEET;
THENCE, N 6049'21 W A DISTANCE OF 25.14 FEET;
THENCE, N 4741'50 W A DISTANCE OF 7878 FEET;
THENCE, N 30'26'40 W A DISTANCE OF 24.58 FEET;
THENCE, N 254701 W A DISTANCE OF 30.08 FEET;
THENCE, N 18'11'39 W A DISTANCE OF 34.61 FEET;
THENCE, N 305021 W A DISTANCE OF 29.32 FEET;
THENCE, N 21'5914 W A DISTANCE OF 27.50 FEET;
THENCE, N 30'1697 W A DISTANCE OF 22.97 FEET;
THENCE, N 2541'38 W A DISTANCE OF 769.44 FEET;
THENCE, N 41'1739 E A DISTANCE OF 82.61 FEET;
THENCE, N 38'3492 E A DISTANCE OF 15.89 FEET;
THENCE, N 349614 W A DISTANCE OF 262.40 FEET;
THENCE, N 57'5009 W A DISTANCE OF 702.47 FEET;
THENCE, N 504131 W A DISTANCE OF 105.38 FEET;
THENCE, N 555811 W A DISTANCE OF 726.73 FEET;
THENCE, N 56'1497 W A DISTANCE OF 118.42 FEET;
THENCE, N 49'1694 W A DISTANCE OF 736.33 FEET;
THENCE, N 44'3051 W A DISTANCE OF 150.05 FEET;
THENCE, N 304055 W A DISTANCE OF 702.74 FEET;
THENCE, 9 37'4419 W A DISTANCE OF 552.12 FEET;
THENCE, N 18'1002 W A DISTANCE OF 47.26 FEET;
THENCE, N 27'5819 W A DISTANCE OF 109.20 FEET;
THENCE, N 3501'36 W A DISTANCE OF 71.09 FEET;
THENCE, 9 41'3217 W A DISTANCE OF 152.23 FEET;
THENCE, N 4022'24 W A DISTANCE OF 33982 FEET;
THENCE, N 64'2053 W A DISTANCE OF 34.06 FEET;
THENCE, N 450036 W A DISTANCE OF 52.42 FEET;
THENCE, N 449041 W A DISTANCE OF 154,66 FEET;
THENCE, N 32'3548 W A DISTANCE OF 86.59 FEET;
THENCE, N 5701'32 W A DISTANCE OF 44.89 FEET;
THENCE, N 303312 W A DISTANCE OF 85.72 FEET;
THENCE, N 373002 W A DISTANCE OF 7909 FEET;
THENCE, N .373730 W A DISTANCE OF 63.32 FEET;
THENCE, N 200015 W A DISTANCE OF 33.98 FEET;
THENCE, N 39'52'25 W A DISTANCE OF 42.02 FEET;
THENCE, N 253694 W A DISTANCE OF 107,17 FEET;
THENCE, N 3034'08 W A DISTANCE OF 164.72 FEET;
THENCE, N 1173001 W A DISTANCE OF 107,90 FEET;
THENCE, N 2496'06 E A DISTANCE OF 163.60 FEET;
THENCE, N 63'3033 E A DISTANCE OF 177.81 FEET;
THENCE, N 83'1413 E A DISTANCE OF 393.54 FEET;
THENCE, N 077526 W A DISTANCE OF 21.79 FEET;
THENCE, N 8051'11 E A DISTANCE OF 50.00 FEET;
THENCE, N 891506 E A DISTANCE OF 65.56 FEET;
THENCE, N 5750'04 E A DISTANCE OF 50.12 FEET;
THENCE, S 8491'15 E A DISTANCE OF 33,08 FEET,
THENCE, S 81'3050 E A DISTANCE OF 8961 FEET;
THENCE, N 56'07'00 E A DISTANCE OF 26.86 FEET;
THENCE, N 073031 E A DISTANCE OF 27.93 FEET;
THENCE, N 3741'57 W A DISTANCE OF 28.06 FEET;
THENCE, N 50'00'75 E A DISTANCE OF 22.23 FEET;
THENCE, N 82'02'30 E A DISTANCE OF 36.49 FEET;
THENCE, S 63'34'38 E A DISTANCE OF 54.05 FEET;
THENCE, 5 455058 E A DISTANCE OF 20.95 FEET,
THENCE, S 1414'20 E A DISTANCE OF 29.18 FEET;
THENCE, 5 11'11'17 W A DISTANCE OF 26.42 FEET;
THENCE, 5 149041 E A DISTANCE OF 30.14 FEET;
THENCE, 5 43'42'10 E A DISTANCE OF 6977 FEET,
THENCE, S 31'3699 E A DISTANCE OF 56.76 FEET;
THENCE, 5 403046 E A DISTANCE OF 4012 FEET,
THENCE, 5 45'3095 E A DISTANCE OF 40.88 FEET;
THENCE, 5 601038 E A DISTANCE OF 43.39 FEET,
THENCE, S 73'1024 E A DISTANCE OF 67.60 FEET;
THENCE, 5 5005'15 E A DISTANCE OF 15.86 FEET,
THENCE, S 63'3730 E A DISTANCE OF 52.31 FEET;
THENCE, 5 802021 E A DISTANCE OF 46.95 FEET,
THENCE, N 802027 E A DISTANCE OF 61.04 FEET;
THENCE, N 319999 E A DISTANCE OF 47.07 FEET;
THENCE, N 055038 E A DISTANCE OF 32.16 FEET;
THENCE, N 700897 E A DISTANCE OF 7.98 FEET;
THENCE, S 2491'03 E A DISTANCE OF 72.35 FEET;
THENCE, 5 419217 E A DISTANCE OF 5071 FEET,
THENCE, 5 5414'21 E A DISTANCE OF 38.31 FEET;
THENCE, S 83'3939 E A DISTANCE OF 87,15 FEET,
THENCE, S 5711'12 E A DISTANCE OF 77.06 FEU;
THENCE, S 41'51'16 E A DISTANCE OF 88.65 FEET,
THENCE, S 57'39'73 E A DISTANCE OF 65.80 FEET;
THENCE, 5 4055'38 E A DISTANCE OF 74.96 FEET,
THENCE, 5 67'04'52 E A DISTANCE OF 43.44 FEET;
THENCE, 5 71'46'03 E A DISTANCE OF 55.45 FEET TO THE POINT OF BEGINNING, CONTAINING. AN AREA OF
85.924 ACRES, MORE OR LESS.
THE NAME AND ADORESSS OF THE PERSON WHO CREATED THIS LEGAL DESCRIPTION IS:
JEFFREY ALLEN TUTTLE, P,LS. 33638
727 BLAKE AVENUE
GLENWOOD SPRINGS, COLORADO 81601
Title:
PROJECT SITE LOCATION AND DESCRIPTION
(1 OF 4)
Prepared by:
8140 Partners, LLC
Date:
12/01/10
Exhibit:
App. A-3
BITS\MISC REPORT FIGURES \PUD -L
02 PRELIM PLAT\ENGINEERING & DESIGN\CAC
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Owner/Developer:
RiVerEdge
COLORADO
Carbondale Investments, LLC
7999 HWY 82
Carbondale, CO 81623
Phone No:
970.456.5325
PARCEL B
(SOUTH PARCEL)
Title:
PROJECT SITE LOCATION AND DESCRIPTION
(2 OF 4)
Prepared by:
8140 Partners, LLC
Date:
L- IL: f CREEK
12/01/10
Exhibit:
App. A-4
BITS\MISC REPORT FIGURES \PUD -L
02 PRELIM PLAT\ENGINEERING & DESIGN\CAC
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PARCEL B
(SOUTH PARCEL)
MATCHLINE
\
200 0 zoo 400
SCALE IN FEET
Owner/Developer:
RiVerEdge
COLORADO
Carbondale Investments, LLC
7999 HWY 82
Carbondale, CO 81623
Phone No:
970.456.5325
PARCEL C
(SOUTHEAST
PARCEL)
Title:
PROJECT SITE LOCATION AND DESCRIPTION
(3 OF 4)
Prepared by:
8140 Partners, LLC
Date:
12/01/10
Exhibit:
App. A-5
CURVE TABLE
(PROPERTY BOUNDARY)
CURVE
RADIUS
LENGTH
CHORD
BEARING
DELTA
C1
281500
494.34
49370
N 14'37'1" W
1003'42"
C2
1482.50
626.05
621.41
5 21'41'2" E
24'11'44"
C3
2815.00
29432
294.19
N 30'47'11" W
5'59'26"
C4
2915.00
282.60
282.49
N 12'21'49" W
533'17"
Owner/Developer:
e _ _fie
COLORADO
Carbondale Investments, LLC
7999 HWY 82
Carbondale, CO 81623
Phone No:
970.456.5325
LINE TABLE
(PROPERTY BOUNDARY)
LINE
LENGTH
8
ARM
LINE
LENGTH
BEARING
Ll
1005.44
89'4330 E
L85
25.14
N 604021° W
L2
2644.53
19'38'52" E
L86
78.78
N 47'41'50" W
L3
120.78
5 96359" E
L87
24.58
N 30'26'40" W
L4
60.45
0536'13" W
L88
30.08
N 25'47'1" W
L5
64.72
49'54'10" W
L89
3461
N 18'11'39" W
L6
86.97
49'54'10" W
L90
29.32
N 30'5021" W
L7
5430
4017'10" W
L91
27.50
N 21'59'14" W
L8
123.97
56'47'27" W
L92
22.97
N 30107" W
L9
93.00
83'47'24" W
L93
169.44
N 2841'38" W
610
119.58
29'35'31" W
L94
82.61
N 41'17'39" E
L11
33.84
N 70043 8
L95
15.89
N 38'34'52" E
612
37.80
79'41'48" W
L96
262.40
N 34'26'44" W
613
56.05
22'57'52" W
L97
102.47
N 5758'9" W
L14
4548
59'31'57° W
698
10538
N 53'4031° W
L15
2823
82'32'35" 8
L99
126.13
9 5858'11' W
616
95.71
N 59'73" W
6100
11842
N 58'14'57° W
117
85.73
71'20'44" W
L101
136.33
N 49'104" W
618
93.22
36'4010° W
L102
150.05
N 44'3051" W
L19
181.92
25'39'22" W
L103
102.14
N 32'4055" W
L20
98.43
65'10'24" W
L104
552.12
N 37'44'19" W
L21
52.20
S 85'2'33" W
L105
47.26
N 18'10'2° W
L22
39.34
56'3352° W
1106
109.20
N 275019° W
L23
42.96
2049'33" W
L107
71.09
N 301'36" W
L24
21.60
3727'43" E
L108
152.23
N 41'32'47" W
L25
89.66
N 77'2'57" W
L109
339.82
N 4022'24" W
L26
70.95
70'24'18" W
6110
3406
N 64'20'53" W
L27
55.55
88'5939 8
L111
52.42
N 45036" 19
L28
49.93
84'28'58" W
L112
154.66
N 44'5041° W
L29
68.20
14'22'48" E
L113
86.59
N 32'35'48" W
L30
77.59
N 5'11'46" W
L114
44.89
4 571'32" W
L31
1082
9 18'20'5" E
6115
85.72
N 30'33'12" 8
L32
44.14
N 22'53'40" E
L116
79.09
N 3739'2" W
L33
35.11
N 10'34'58" E
6117
63.32
N 37'32'30" 8
L34
47.16
N 8'59'51" E
L118
33.98
N 222'15° W
L35
36.48
N 348'9" E
L119
42.02
N 3952'25" W
L36
71.03
9 4'40'52" E
L120
107.17
N 25'304" W
L37
54.66
N 73751" E
L121
16472
N 3034'8" W
L38
63.68
29'28'14" W
6122
107.90
N 11'301" W
L39
61.05
N 32'0'44" W
[123
16360
N 24'56'6' E
L40
55.52
26'17'29" W
L124
177.81
N 63'39'33" E
L41
44.36
38'14'36" W
L125
393.54
N 83'14'43" E
L42
37.73
53'11'32" W
L126
21.79
N 7'15'26" W
L43
54.16
59'54'48" W
L127
50.00
N 8051'11" E
L44
36.97
8751'35" W
6128
6556
N 8915'6" E
L45
65.70
5733'47" W
L129
50.12
9 57'50'4" E
L46
85.02
81'56'22" W
L130
33.08
5 8451'15° E
L47
158.65
9 4'11'29" W
L131
89.61
S 81'39'50" E
L48
41 30
35'5041" W
L132
26.86
N 56'7'0° E
L49
2470
N 54'46'3" W
L133
27.93
N 738'31' E
650
209.99
28'51'45" W
L134
2806
N 37'41'57" W
L51
33.82
11'58'37" W
6135
22.23
N 50'0'15" E
L52
78.19
N 41'3'46" E
L136
36.49
N 82'2'30° E
L53
117.20
N 6201" W
6137
54.05
S 653430 E
L54
94.24
6 205'27 W
L138
20.95
5 45'59'58" E
L55
63.83
N 11'32'3" W
L139
29.18
S 1444'20" E
L56
141.45
9 7'57'46" W
L140
26.42
9 11'11'17° W
L57
50.76
N 056'14" E
6141
30.14
S 14158'41" E
L58
91.04
N 19'17'44" W
L142
69.77
5 43'42'10" E
L59
134.55
N 44'41'59" W
L143
56.76
5 31'36'59" E
160
74.18
N 19'2049° W
L144
40.12
5 4038'46" E
L61
43.27
N 19'33'6" W
L145
40.88
5 45'30'55" E
662
72.23
N 21'30'1" W
L146
43.39
5 6216'38" E
L63
217.77
N 716'30" E
L147
67.60
S 73'16'24" E
L64
31294
N 0'1030" E
LI48
15.86
5 53'5'15" E
L65
401.79
S 9'35'9" E
L149
5231
S 63'37'30" E
L66
1545.87
5 9'35'9" E
LI 50
46.95
5 83'28'21° E
[67
387.28
33'46'54" E
L151
61.04
N 8620'27° E
L68
218.07
59'53'16" W
L152
47.07
N 31'59'9" E
669
69.38
402030" W
6153
32.16
N 6'58'38" E
L70
36.35
8728'29 W
6154
7.98
N 72'8'7° E
L71
10.80
83'52'12" W
6155
72.35
S 24'51'3" E
L72
41.45
5.027'19" W
6756
50.71
5 41'52'47" E
L73
8.28
29'51'31" W
6157
38.31
S 54'44'21" E
L74
25.22
24'1024" W
6758
87.15
5 03'39'39" E
L75
9.87
N 69'053" W
L159
77.06
5 5711'12" E
L76
22.60
8731'44" W
6160
88.65
5 41'51'16" E
L77
1728
N 57201" W
L161
6560
5 5739'13" E
L78
26.07
N 58049" W
6162
74.96
5 49'55'38" E
L79
999
N 4621'12" W
L163
4344
S 61'4'52" E
L80
21.45
N 44'285 W
L164
5545
5 71'46'2" E
681
49.05
N 55'50'8" W
L165
188.14
N 035'10' W
L82
49.94
N 56'25'40" W
6166
49.74
E
LB3
36.45
N 68'12'23" W
6167
202.70
5 01'0" E
L84
55.18
N 46'54'4" W
6168
260.70
5 4'34'58" E
Title:
PROJECT SITE LOCATION AND DESCRIPTION
(4 OF 4)
Prepared by:
8140 Partners, LLC
Date:
12/01/10
Exhibit:
App. A-6
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
APPENDIX B: IRRIGATED AREA CALCULATIONS
App. B-1
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
Table 1. Community Space Irrigation
TRACT USE
FILING
TRACT ID
AREA
(SQFT)
HIGH
PERFORMANCE
LAWN (SQFT)
IRRIGATED AND NON -IRRIGATED AREAS
LOW
TRADITIONAL MAINTENANCE TEMPORARY
PERFORMANCE PERFORMANCE IRRIGATION
LAWN (SQFT) LAWN (SQFT) (SQFT)
NON -
IRRIGATED
(SQFT)
Common Area
1
AC
173,540
10,113
30,338
60,675
-
72,415
1
AE
1,046
105
314
628
-
-
1
AV
20,736
1,870
5,609
11,217
-
2,040
1
AY
10,205
1,021
3,062
6,123
-
-
2
BD
8,397
840
2,519
5,038
8,397
-
2
BE
7,856
408
1,224
2,449
4,081
3,775
2
BF
3,575
358
1,073
2,145
3,575
-
2
BG
16,881
1,688
5,064
10,129
16,881
-
3
BT
2,514
251
754
1,508
2,514
-
3
BU
4,395
440
1,319
2,637
4,395
-
3
BV
16,015
1,602
4,805
9,609
16,015
-
4
BK
17,550
1,755
5,265
10,530
17,550
-
4
BL
5,957
596
1,787
3,574
5,957
-
4
BQ
43,379
3,852
11,557
23,113
38,522
4,857
4
BR
4,811
384
1,151
2,302
3,837
974
4
BS
5,190
405
1,214
2,428
4,046
1,144
5
AL
94,265
9,427
28,280
56,559
94,265
-
5
AZ
7,570
757
2,271
4,542
7,570
-
6
AT
29,908
2,991
8,972
17,945
29,908
-
6
CD
41,523
3,677
11,031
22,062
36,770
4,753
Neighborhood
Center
1
AA
100,109
5,005
50,055
45,049
-
-
Garden/Orchard
1
AB
107,019
26,099
8,700
52,198
-
20,023
2
BA
62,323
16,769
5,590
33,538
55,897
6,426
5
AM
51,038
14,005
4,668
28,010
46,683
4,355
Open Space
1
AH
13,043
-
-
-
13,043
-
1
AP
102,372
-
-
-
102,372
-
1
AU
18,335
-
-
-
18,335
-
2
BH1 & BH2
73,448
-
-
-
73,448
-
3
BB
306,225
-
-
-
306,225
-
4
BN
343,044
-
-
-
343,044
-
4
BO
68,465
-
-
-
68,465
-
5
AN
137,118
-
-
-
137,118
-
6
AQ
64,760
-
-
-
64,760
-
6
CE
637,236
-
-
-
637,236
-
App. B-2
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
TRACT USE
FILING
TRACT ID
AREA
(SQFT)
E
HIGH
PERFORMANCE
LAWN (SQFT)
IRRIGATED AND NON -IRRIGATED AREAS
LOW
MAINTENANCE
PERFORMANCE
LAWN (SQFT)
TRADITIONAL
PERFORMANCE
LAWN (SQFT)
TEMPORARY
IRRIGATION
(SQFT)
NON-
IRRIGATED
(SQFT)
Park
1
Al
243,291
48,421
193,682
1,188
3
BI
213,052
38,981
155,922
194,903
18,149
4
BJ
107,098
21,420
85,678
107,098
6
AX
180,613
31,378
125,513
156,891
23,722
Total
3,343,902
244,613
757,414
414,008
2,619,801
163,821
App. B-3
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
Table 2. Residential Lot Irrigation
FILING
1
I
BLOCK NO.
B3
LOT NO.
1
AREA
(SQFT)
5,921
DESIGNATION
Attached Home
II
LOT
COVERAGE
(SQFT)
2,350
IRRIGATED AND
AREAS
IRRIGATION
(SQFT)
2,678
NON -IRRIGATED
NON -IRRIGATED
(SQFT)
893
1
B3
2
5,000
Attached Home
2,350
1,988
663
1
B3
3
5,000
Attached Home
2,350
1,988
663
1
B3
4
4,999
Attached Home
2,350
1,987
662
1
B3
5
5,513
Attached Home
2,350
2,372
791
1
B3
6
5,522
Attached Home
2,350
2,379
793
1
B3
7
5,823
Attached Home
2,350
2,605
868
1
B3
8
5,931
Attached Home
2,350
2,686
895
1
B3
9
6,229
Attached Home
2,350
2,909
970
1
B3
10
9,451
Attached Home
2,350
5,326
1,775
1
B3
11
10,645
Attached Home
2,350
6,221
2,074
1
B3
12
10,111
Attached Home
2,350
5,821
1,940
1
B3
13
5,481
Attached Home
2,350
2,348
783
1
B3
14
6,206
Attached Home
2,350
2,892
964
1
B3
15
5,568
Attached Home
2,350
2,414
805
1
B3
16
5,000
Attached Home
2,350
1,988
663
1
B3
17
5,000
Attached Home
2,350
1,988
663
1
B3
18
5,267
Attached Home
2,350
2,188
729
1
B3
19
5,260
Attached Home
2,350
2,183
728
1
B3
20
5,260
Attached Home
2,350
2,183
728
1
B4
1
5,880
Town
2,800
2,310
770
1
B4
2
5,880
Town
2,800
2,310
770
1
B4
3
5,880
Town
2,800
2,310
770
1
B4
4
6,332
Town
2,800
2,649
883
1
B4
5
5,933
Town
2,800
2,350
783
1
B4
6
6,988
Town
2,800
3,141
1,047
1
B4
7
5,952
Town
2,800
2,364
788
1
B4
8
5,888
Town
2,800
2,316
772
1
B4
9
5,880
Town
2,800
2,310
770
1
B5
1
7,706
Town
2,800
3,680
1,227
1
B5
2
7,321
Town
2,800
3,391
1,130
1
B5
3
6,531
Town
2,800
2,798
933
1
B5
4
6,592
Town
2,800
2,844
948
1
B5
5
7,044
Town
2,800
3,183
1,061
App. B-4
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
FILING
BLOCK NO.
LOT NO.
AREA
(SQFT)
DESIGNATION
LOT
COVERAGE
(SQFT)
IRRIGATED AND
AREAS
IRRIGATION
(SQFT)
NON -IRRIGATED
NON -IRRIGATED
(SQFT)
1
B6
1
8,330
Town
2,800
4,148
1,383
1
B6
2
7,815
Town
2,800
3,761
1,254
1
B6
3
6,615
Town
2,800
2,861
954
1
B6
4
6,600
Town
2,800
2,850
950
1
B6
5
6,600
Town
2,800
2,850
950
1
B6
6
6,600
Town
2,800
2,850
950
1
B6
7
6,600
Town
2,800
2,850
950
1
B6
8
6,600
Town
2,800
2,850
950
1
B6
9
6,600
Town
2,800
2,850
950
1
B6
10
7,107
Town
2,800
3,230
1,077
1
B6
11
7,016
Town
2,800
3,162
1,054
1
B6
12
6,503
Town
2,800
2,777
926
1
B6
13
6,600
Town
2,800
2,850
950
1
B6
14
6,632
Town
2,800
2,874
958
1
B6
15
7,237
Town
2,800
3,328
1,109
1
B6
16
6,869
Town
2,800
3,052
1,017
1
B6
17
7,074
Town
2,800
3,206
1,069
1
B6
18
7,704
Town
2,800
3,678
1,226
1
B6
19
6,600
Town
2,800
2,850
950
1
B6
20
6,600
Town
2,800
2,850
950
1
B6
21
6,600
Town
2,800
2,850
950
1
B6
22
6,600
Town
2,800
2,850
950
1
B6
23
6,600
Town
2,800
2,850
950
1
B6
24
6,600
Town
2,800
2,850
950
1
B6
25
6,604
Town
2,800
2,853
951
2
B7
1
7,588
Village
2,500
3,816
1,272
2
B7
2
5,431
Village
2,500
2,198
733
2
B7
3
5,431
Village
2,500
2,198
733
2
B7
4
5,431
Village
2,500
2,198
733
2
B7
5
5,431
Village
2,500
2,198
733
2
B7
6
5,431
Village
2,500
2,198
733
2
B7
7
5,432
Village
2,500
2,199
733
2
B7
8
5,432
Village
2,500
2,199
733
2
B7
9
5,432
Village
2,500
2,199
733
2
B7
10
5,432
Village
2,500
2,199
733
App. B-5
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
FILING
BLOCK NO.
LOT NO.
AREA
(SQFT)
DESIGNATION
LOT
COVERAGE
(SQFT)
IRRIGATED AND
AREAS
IRRIGATION
(SQFT)
NON -IRRIGATED
NON -IRRIGATED
(SQFT)
2
B7
11
5,484
Village
2,500
2,238
746
2
B7
12
8,752
Village
2,500
4,689
1,563
2
B7
13
6,217
Attached Home
2,350
2,900
967
2
B7
14
4,993
Attached Home
2,350
1,982
661
2
B7
15
5,000
Attached Home
2,350
1,988
663
2
B7
16
5,000
Attached Home
2,350
1,988
663
2
B7
17
5,000
Attached Home
2,350
1,988
663
2
B7
18
5,000
Attached Home
2,350
1,988
663
2
B7
19
5,000
Attached Home
2,350
1,988
663
2
B7
20
5,000
Attached Home
2,350
1,988
663
2
B7
21
5,000
Attached Home
2,350
1,988
663
2
B7
22
5,000
Attached Home
2,350
1,988
663
2
B7
23
8,414
Attached Home
2,350
4,548
1,516
2
B8
1
7,000
Town
2,800
3,150
1,050
2
B8
2
7,000
Town
2,800
3,150
1,050
2
B8
3
7,000
Town
2,800
3,150
1,050
2
B8
4
7,000
Town
2,800
3,150
1,050
2
B8
5
7,000
Town
2,800
3,150
1,050
2
B8
6
5,909
Attached Home
2,350
2,669
890
2
B8
7
5,250
Attached Home
2,350
2,175
725
2
B8
8
6,300
Attached Home
2,350
2,963
988
2
B8
9
5,775
Attached Home
2,350
2,569
856
2
B8
10
6,300
Attached Home
2,350
2,963
988
2
B8
11
5,775
Attached Home
2,350
2,569
856
2
B8
12
6,300
Attached Home
2,350
2,963
988
2
B8
13
7,009
Attached Home
2,350
3,494
1,165
3
B10
1
7,873
Town
2,800
3,805
1,268
3
B10
2
7,127
Town
2,800
3,245
1,082
3
B10
3
7,128
Town
2,800
3,246
1,082
3
B10
4
7,523
Town
2,800
3,542
1,181
3
B10
5
7,510
Town
2,800
3,533
1,178
3
B10
6
7,420
Town
2,800
3,465
1,155
3
B10
7
7,150
Town
2,800
3,263
1,088
3
B10
8
7,150
Town
2,800
3,263
1,088
3
B10
9
7,150
Town
2,800
3,263
1,088
App. B-6
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
FILING
BLOCK NO.
LOT NO.
AREA
(SQFT)
DESIGNATION
LOT
COVERAGE
(SQFT)
IRRIGATED AND
AREAS
IRRIGATION
(SQFT)
NON -IRRIGATED
NON -IRRIGATED
(SQFT)
3
B10
10
7,150
Town
2,800
3,263
1,088
3
B10
11
7,150
Town
2,800
3,263
1,088
3
B10
12
7,522
Town
2,800
3,542
1,181
3
B10
13
7,640
Town
2,800
3,630
1,210
3
B10
14
7,684
Town
2,800
3,663
1,221
3
B10
15
7,775
Town
2,800
3,731
1,244
3
B10
16
7,487
Town
2,800
3,515
1,172
3
B10
17
7,159
Town
2,800
3,269
1,090
3
B10
18
7,082
Town
2,800
3,212
1,071
3
B9
1
7,444
Town
2,800
3,483
1,161
3
B9
2
5,000
Village
2,500
1,875
625
3
B9
3
6,356
Town
2,800
2,667
889
3
B9
4
5,967
Town
2,800
2,375
792
3
B9
5
6,000
Town
2,800
2,400
800
3
B9
6
6,000
Town
2,800
2,400
800
3
B9
7
6,000
Town
2,800
2,400
800
3
B9
8
6,000
Town
2,800
2,400
800
3
B9
9
6,000
Town
2,800
2,400
800
3
B9
10
6,000
Town
2,800
2,400
800
3
B9
11
6,000
Town
2,800
2,400
800
3
B9
12
6,000
Town
2,800
2,400
800
3
B9
13
6,000
Town
2,800
2,400
800
3
B9
14
6,000
Town
2,800
2,400
800
3
B9
15
6,000
Town
2,800
2,400
800
3
B9
16
6,000
Town
2,800
2,400
800
3
B9
17
6,007
Town
2,800
2,405
802
3
B9
18
7,533
Town
2,800
3,550
1,183
4
B11
1
6,000
Town
2,800
2,400
800
4
B11
2
6,000
Town
2,800
2,400
800
4
B11
3
6,000
Town
2,800
2,400
800
4
B11
4
6,000
Town
2,800
2,400
800
4
B11
5
6,000
Town
2,800
2,400
800
4
B11
6
6,000
Town
2,800
2,400
800
4
B11
7
6,000
Town
2,800
2,400
800
4
B11
8
7,282
Town
2,800
3,362
1,121
App. B-7
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
FILING
BLOCK NO.
LOT NO.
AREA
(SQFT)
DESIGNATION
LOT
COVERAGE
(SQFT)
IRRIGATED AND
AREAS
IRRIGATION
(SQFT)
NON -IRRIGATED
NON -IRRIGATED
(SQFT)
4
B11
9
7,200
Town
2,800
3,300
1,100
4
B11
10
6,000
Town
2,800
2,400
800
4
B11
11
6,000
Town
2,800
2,400
800
4
B11
12
6,000
Town
2,800
2,400
800
4
B11
13
6,000
Town
2,800
2,400
800
4
B11
14
6,000
Town
2,800
2,400
800
4
B11
15
6,000
Town
2,800
2,400
800
4
B11
16
6,000
Town
2,800
2,400
800
4
B12
1
6,000
Village
2,500
2,625
875
4
B12
2
6,000
Village
2,500
2,625
875
4
B12
3
6,000
Village
2,500
2,625
875
4
B12
4
6,000
Village
2,500
2,625
875
4
B12
5
6,000
Village
2,500
2,625
875
4
B12
6
6,000
Village
2,500
2,625
875
4
B12
7
7,258
Village
2,500
3,569
1,190
4
B12
8
7,555
Village
2,500
3,791
1,264
4
B13
1
8,044
Town
2,800
3,933
1,311
4
B13
2
7,717
Town
2,800
3,688
1,229
4
B13
3
7,717
Town
2,800
3,688
1,229
4
B13
4
7,618
Town
2,800
3,614
1,205
4
B13
5
8,785
Town
2,800
4,489
1,496
4
B13
6
7,533
Town
2,800
3,550
1,183
4
B13
7
7,090
Town
2,800
3,218
1,073
4
B13
8
7,626
Town
2,800
3,620
1,207
4
B13
9
7,626
Town
2,800
3,620
1,207
4
B13
10
7,626
Town
2,800
3,620
1,207
4
B13
11
7,936
Town
2,800
3,852
1,284
4
B14
1
7,150
Town
2,800
3,263
1,088
4
B14
2
7,572
Town
2,800
3,579
1,193
4
B14
3
7,880
Town
2,800
3,810
1,270
4
B14
4
7,837
Town
2,800
3,778
1,259
4
B14
5
7,350
Town
2,800
3,413
1,138
4
B15
1
7,656
Town
2,800
3,642
1,214
4
B15
2
7,606
Town
2,800
3,605
1,202
4
B15
3
7,150
Town
2,800
3,263
1,088
App. B-8
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
FILING
BLOCK NO.
LOT NO.
AREA
(SQFT)
DESIGNATION
LOT
COVERAGE
(SQFT)
IRRIGATED AND
AREAS
IRRIGATION
(SQFT)
NON -IRRIGATED
NON -IRRIGATED
(SQFT)
4
B15
4
7,150
Town
2,800
3,263
1,088
4
B15
5
7,700
Town
2,800
3,675
1,225
4
B15
6
7,700
Town
2,800
3,675
1,225
4
B15
7
7,700
Town
2,800
3,675
1,225
4
B15
8
7,150
Town
2,800
3,263
1,088
4
B15
9
7,150
Town
2,800
3,263
1,088
4
B15
10
7,651
Town
2,800
3,638
1,213
4
B15
11
7,919
Town
2,800
3,839
1,280
4
B15
12
10,161
Town
2,800
5,521
1,840
5
B1
1
10,221
Town
2,800
5,566
1,855
5
B1
2
6,970
Town
2,800
3,128
1,043
5
B1
3
8,924
Town
2,800
4,593
1,531
5
B1
4
8,634
Town
2,800
4,376
1,459
5
B1
5
7,150
Town
2,800
3,263
1,088
5
B1
6
7,150
Town
2,800
3,263
1,088
5
B1
7
7,150
Town
2,800
3,263
1,088
5
B1
8
7,150
Town
2,800
3,263
1,088
5
B1
9
7,055
Town
2,800
3,191
1,064
5
B1
10
8,595
Town
2,800
4,346
1,449
5
B1
11
6,000
Town
2,800
2,400
800
5
B1
12
6,000
Town
2,800
2,400
800
5
B1
13
6,000
Town
2,800
2,400
800
5
B1
14
6,000
Town
2,800
2,400
800
5
B1
15
6,000
Town
2,800
2,400
800
5
B1
16
6,604
Town
2,800
2,853
951
5
B1
17
6,971
Town
2,800
3,128
1,043
5
B1
18
10,007
Town
2,800
5,405
1,802
5
B2
1
8,329
Town
2,800
4,147
1,382
5
B2
2
7,700
Town
2,800
3,675
1,225
5
B2
3
7,703
Town
2,800
3,677
1,226
5
B2
4
8,689
Town
2,800
4,417
1,472
5
B2
5
8,323
Town
2,800
4,142
1,381
5
B2
6
7,551
Town
2,800
3,563
1,188
5
B2
7
6,000
Town
2,800
2,400
800
5
B2
8
6,000
Town
2,800
2,400
800
App. B-9
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
FILING
BLOCK NO.
LOT NO.
AREA
(SQFT)
DESIGNATION
LOT
COVERAGE
(SQFT)
IRRIGATED AND
AREAS
IRRIGATION
(SQFT)
NON -IRRIGATED
NON -IRRIGATED
(SQFT)
5
B2
9
6,274
Town
2,800
2,606
869
6
B16
1
5,288
Village
2,500
2,091
697
6
B16
2
5,500
Village
2,500
2,250
750
6
B16
3
5,500
Village
2,500
2,250
750
6
B16
4
5,500
Village
2,500
2,250
750
6
B16
5
5,500
Village
2,500
2,250
750
6
B16
6
5,500
Village
2,500
2,250
750
6
B16
7
5,500
Village
2,500
2,250
750
6
B16
8
5,500
Village
2,500
2,250
750
6
B16
9
5,500
Village
2,500
2,250
750
6
B16
10
5,636
Village
2,500
2,352
784
6
B16
11
9,062
Village
2,500
4,922
1,641
6
B17
1
5,500
Village
2,500
2,250
750
6
B17
2
5,500
Village
2,500
2,250
750
6
B17
3
5,500
Village
2,500
2,250
750
6
B17
4
5,500
Village
2,500
2,250
750
6
B17
5
5,500
Village
2,500
2,250
750
6
B17
6
5,500
Village
2,500
2,250
750
6
B17
7
5,500
Village
2,500
2,250
750
6
B17
8
5,500
Village
2,500
2,250
750
6
B17
9
5,500
Village
2,500
2,250
750
6
B17
10
5,500
Village
2,500
2,250
750
6
B17
11
5,500
Village
2,500
2,250
750
6
B17
12
5,500
Village
2,500
2,250
750
6
B17
13
5,500
Village
2,500
2,250
750
6
B18
1
5,500
Village
2,500
2,250
750
6
B18
2
5,500
Village
2,500
2,250
750
6
B18
3
5,500
Village
2,500
2,250
750
6
B18
4
5,500
Village
2,500
2,250
750
6
B18
5
5,500
Village
2,500
2,250
750
6
B18
6
6,000
Village
2,500
2,625
875
6
B18
7
5,500
Village
2,500
2,250
750
6
B18
8
5,500
Village
2,500
2,250
750
6
B18
9
5,500
Village
2,500
2,250
750
6
B18
10
5,500
Village
2,500
2,250
750
App. B-10
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
FILING
BLOCK NO.
LOT NO.
AREA
(SQFT)
DESIGNATION
LOT
COVERAGE
(SQFT)
IRRIGATED AND
AREAS
IRRIGATION
(SQFT)
NON -IRRIGATED
NON -IRRIGATED
(SQFT)
6
B18
11
5,500
Village
2,500
2,250
750
6
B19
1
11,981
Estate
3,200
6,586
2,195
6
B19
2
9,938
Estate
3,200
5,054
1,685
6
B19
3
9,428
Estate
3,200
4,671
1,557
6
B19
4
9,965
Estate
3,200
5,074
1,691
6
B19
5
9,922
Estate
3,200
5,042
1,681
6
B19
6
10,497
Estate
3,200
5,473
1,824
6
B19
7
10,331
Estate
3,200
5,348
1,783
6
B19
8
11,350
Estate
3,200
6,113
2,038
6
B20
1
7,285
Town
2,800
3,364
1,121
6
B20
2
6,936
Town
2,800
3,102
1,034
6
B20
3
6,986
Town
2,800
3,140
1,047
6
B20
4
6,864
Town
2,800
3,048
1,016
6
B20
5
7,432
Town
2,800
3,474
1,158
6
B20
6
8,984
Town
2,800
4,638
1,546
6
B20
7
6,391
Town
2,800
2,693
898
6
B20
8
9,864
Town
2,800
5,298
1,766
6
B20
9
8,965
Town
2,800
4,624
1,541
6
B20
10
9,995
Town
2,800
5,396
1,799
6
B20
11
8,791
Town
2,800
4,493
1,498
6
B20
12
8,800
Town
2,800
4,500
1,500
6
B20
13
8,800
Town
2,800
4,500
1,500
6
B21
1
6,010
Town
2,800
2,408
803
6
B21
2
6,000
Town
2,800
2,400
800
6
B21
3
6,000
Town
2,800
2,400
800
6
B21
4
5,929
Town
2,800
2,347
782
6
B22
1
97,842
Estate
3,200
70,982
23,661
1A
B25
1
4,966
Garden Home
1,600
2,525
842
1A
B25
2
4,557
Garden Home
1,600
2,218
739
1A
B25
3
3,935
Garden Home
1,600
1,751
584
1A
B25
4
3,903
Garden Home
1,600
1,727
576
1A
B25
5
4,267
Garden Home
1,600
2,000
667
1A
B25
6
4,272
Garden Home
1,600
2,004
668
1A
B25
7
4,774
Garden Home
1,600
2,381
794
1A
B25
8
5,284
Garden Home
1,600
2,763
921
App. B-11
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
FILING
BLOCK NO.
LOT NO.
AREA
(SQFT)
DESIGNATION
LOT
COVERAGE
(SQFT)
IRRIGATED AND
AREAS
IRRIGATION
(SQFT)
NON -IRRIGATED
NON -IRRIGATED
(SQFT)
1A
B25
9
4,788
Garden Home
1,600
2,391
797
1A
B25
10
3,947
Garden Home
1,600
1,760
587
1A
B25
11
3,812
Garden Home
1,600
1,659
553
1A
B25
12
4,809
Garden Home
1,600
2,407
802
1A
B25
13
4,150
Garden Home
1,600
1,913
638
1A
B25
14
4,338
Garden Home
1,600
2,054
685
1A
B25
15
4,354
Garden Home
1,600
2,066
689
1A
B25
16
4,741
Garden Home
1,600
2,356
785
1A
B25
17
5,521
Garden Home
1,600
2,941
980
1A
B25
18
6,149
Garden Home
1,600
3,412
1,137
1A
B25
19
4,728
Garden Home
1,600
2,346
782
1A
B25
20
3,922
Garden Home
1,600
1,742
581
1A
B25
21
5,277
Garden Home
1,600
2,758
919
1B
B26
1
4,529
Garden Home
1,600
2,197
732
1B
B26
2
3,832
Garden Home
1,600
1,674
558
1B
B26
3
3,895
Garden Home
1,600
1,721
574
1B
B26
4
2,826
Garden Home
1,600
920
307
1B
B26
5
2,429
Garden Home
1,600
622
207
1B
B26
6
2,753
Garden Home
1,600
865
288
1B
B26
7
3,170
Garden Home
1,600
1,178
393
1B
B26
8
3,906
Garden Home
1,600
1,730
577
1B
B26
9
5,886
Garden Home
1,600
3,215
1,072
1B
B26
10
4,851
Garden Home
1,600
2,438
813
1B
B26
11
5,812
Garden Home
1,600
3,159
1,053
1B
B26
12
4,934
Garden Home
1,600
2,501
834
1B
B26
13
4,401
Garden Home
1,600
2,101
700
2A
B24
1
4,104
Garden Home
1,600
1,878
626
2A
B24
2
3,573
Garden Home
1,600
1,480
493
2A
B24
3
4,157
Garden Home
1,600
1,918
639
2A
B24
4
3,044
Garden Home
1,600
1,083
361
2A
B24
5
2,771
Garden Home
1,600
878
293
2A
B24
6
3,626
Garden Home
1,600
1,520
507
2A
B24
7
3,525
Garden Home
1,600
1,444
481
2A
B24
8
3,366
Garden Home
1,600
1,325
442
2A
B24
9
3,602
Garden Home
1,600
1,502
501
App. B-12
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
FILING
BLOCK NO.
LOT NO.
AREA
(SQFT)
DESIGNATION
LOT
COVERAGE
(SQFT)
IRRIGATED AND
AREAS
IRRIGATION
(SQFT)
NON -IRRIGATED
NON -IRRIGATED
(SQFT)
2A
B24
10
2,994
Garden Home
1,600
1,046
349
2A
B24
11
2,862
Garden Home
1,600
947
316
2A
B24
12
3,258
Garden Home
1,600
1,244
415
2A
B24
13
3,639
Garden Home
1,600
1,529
510
2A
B24
14
3,201
Garden Home
1,600
1,201
400
2A
B24
15
2,804
Garden Home
1,600
903
301
2A
B24
16
2,756
Garden Home
1,600
867
289
2A
B24
17
3,794
Garden Home
1,600
1,646
549
2A
B24
18
3,844
Garden Home
1,600
1,683
561
2A
B24
19
4,666
Garden Home
1,600
2,300
767
2A
B24
20
4,909
Garden Home
1,600
2,482
827
2A
B24
21
5,335
Garden Home
1,600
2,801
934
2A
B24
22
5,117
Garden Home
1,600
2,638
879
2A
B24
23
5,087
Garden Home
1,600
2,267
1,220
2A
B24
24
4,304
Garden Home
1,600
1,758
946
2A
B24
25
4,346
Garden Home
1,600
1,785
961
2A
B24
26
5,076
Garden Home
1,600
2,259
1,217
2A
B24
27
4,487
Garden Home
1,600
1,877
1,010
2A
B24
28
4,567
Garden Home
1,600
1,929
1,038
4A
B23
1
5,048
Garden Home
1,600
2,241
1,207
4A
B23
2
4,323
Garden Home
1,600
2,042
681
4A
B23
3
6,787
Garden Home
1,600
3,890
1,297
4A
B23
4
6,266
Garden Home
1,600
3,500
1,167
4A
B23
5
6,596
Garden Home
1,600
3,747
1,249
4A
B23
6
4,459
Garden Home
1,600
2,144
715
4A
B23
7
5,548
Garden Home
1,600
2,961
987
4A
B23
8
4,598
Garden Home
1,600
2,249
750
4A
B23
9
5,448
Garden Home
1,600
2,501
1,347
4A
B23
10
4,617
Garden Home
1,600
1,961
1,056
4A
B23
11
4,822
Garden Home
1,600
2,094
1,128
4A
B23
12
3,990
Garden Home
1,600
1,554
837
4A
B23
13
6,417
Garden Home
1,600
3,613
1,204
4A
B23
14
6,360
Garden Home
1,600
3,570
1,190
4A
B23
15
6,165
Garden Home
1,600
3,424
1,141
4A
B23
16
5,640
Garden Home
1,600
3,030
1,010
App. B-13
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
FILING
BLOCK NO.
LOT NO.
AREA
(SQFT)
DESIGNATION
LOT
COVERAGE
(SQFT)
IRRIGATED AND NON -IRRIGATED
AREAS
IRRIGATION NON -IRRIGATED
(SQFT) (SQFT)
4A
B23
17
4,025
Garden Home
1,600
121
2,304
4A
B23
18
5,575
Garden Home
1,600
199
3,776
4A
B23
19
5,666
Garden Home
1,600
203
3,863
5A
B27
1
5,141
Garden Home
1,600
2,656
885
5A
B27
2
3,153
Garden Home
1,600
1,165
388
5A
B27
3
3,172
Garden Home
1,600
1,179
393
5A
B27
4
2,732
Garden Home
1,600
849
283
5A
B27
5
2,293
Garden Home
1,600
520
173
5A
B27
6
2,326
Garden Home
1,600
545
182
5A
B27
7
2,427
Garden Home
1,600
620
207
5A
B27
8
2,494
Garden Home
1,600
671
224
5A
B27
9
3,905
Garden Home
1,600
1,729
576
5A
B27
10
3,712
Garden Home
1,600
1,584
528
5A
B27
11
3,768
Garden Home
1,600
1,626
542
5A
B27
12
4,878
Garden Home
1,600
2,459
820
5A
B27
13
3,690
Garden Home
1,600
1,568
523
5A
B27
14
4,028
Garden Home
1,600
1,821
607
Total
2,321,854
880,050
1,070,608
371,196
App. B-14
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
Table 3. Utility and Right -of -Way Irrigation
TRACT USE
FILING
TRACT ID
AREA
(SQFT)
IRRIGATED AND NON -IRRIGATED AREAS
LOW
HIGH TRADITIONAL MAINTENANCE TEMPORARY
PERFORMANCE PERFORMANCE PERFORMANCE IRRIGATION
LAWN (SQFT) LAWN (SQFT) LAWN (SQFT) (SQFT)
NON -
IRRIGATED
Right -of -Way
1
RC
225,152
-
112,576
112,576
-
-
1
RF
66,876
-
12,658
12,658
-
20,780
2
RB
139,192
-
59,884
59,884
129,480
9,712
3
RD
88,815
-
40,994
40,994
85,401
3,414
4
RA
167,649
-
79,265
79,265
163,090
4,559
4
RH
73,186
-
35,208
35,208
71,801
1,385
5
RG
77,902
-
38,951
38,951
77,902
-
6
RE
150,916
-
61,648
61,648
137,106
13,810
1A
AD1
34,504
-
34,504
-
34,504
-
1B
AJ1
16,702
-
16,702
-
-
-
2A
BC1
28,684
-
28,684
-
28,684
-
4A
BM1
24,073
-
24,073
-
24,073
-
4A
BM2
1,928
-
1,928
-
1,928
-
5A
AK1
15,319
-
15,319
-
15,319
-
Utility
Irrigation &
Maintenance
1
AG
58,252
-
15,574
15,574
27,104
Water&
Wastewater Utility
5
AO
47,383
-
21,412
21,412
45,103
2,280
Water &
Wastewater Utility
6
AR
50,021
5,002
15,006
30,013
50,021
-
Total
1,266,554
5,002
614,386
508,182
864,412
83,044
App. B-15
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
APPENDIX C: IRRIGATION DEMAND CALCULATIONS
App. C-1
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
Table 1. Evapotranspiration Data'
Year
2006
March
Apri
May
Monthly ETD (inches)
Jun July
August
September
OctobeI
Alfalfa Boulder
3.90
7.08
8.19
9.35
8.90
7.48
5.24
4.01
Grass Boulder
2.89
5.17
6.26
7.31
6.91
5.84
3.99
2.78
Alfalfa Cedaredge-
Alfalfa Cedaredge
2.55
5.14
6.57
6.34
5.57
4.12
-
Alfalfa Hotchkiss
-
2.50
6.67
8.74
8.01
6.93
5.03
-
2007
March
=
May
Jun
July
August
September
October
Alfalfa Boulder
4.88
5.01
6.64
8.42
9.29
8.03
6.01
4.83
Grass Boulder
3.53
3.89
5.28
6.65
7.37
6.26
4.50
3.34
Alfalfa Cedaredge
-
2.60
4.71
6.87
6.82
5.94
4.65
-
Alfalfa Hotchkiss
-
2.55
5.43
7.93
8.18
7.01
5.51
-
2008
March
April
May
Jun
July
August
September
October
Alfalfa Boulder
4.72
6.49
7.16
8.88
9.34
7.15
5.22
4.06
Grass Boulder
3.34
4.76
5.54
6.93
7.23
5.60
4.04
2.87
Alfalfa Cedaredge
-
2.93
5.43
6.52
6.58
6.09
4.90
-
Alfalfa Hotchkiss
-
2.70
5.88
8.15
8.00
7.24
5.52
-
2009
March
April
May
Jun
July
August
September
October
Alfalfa Boulder
5.32
4.90
6.85
6.64
7.53
7.49
5.45
3.09
Grass Boulder
3.76
3.77
5.36
5.43
6.14
5.88
4.11
2.20
Alfalfa Cedaredge-
-
2.06
4.88
5.99
7.04
6.05
3.72
-
Alfalfa Hotchkiss-
-
2.10
5.23
6.91
8.59
6.98
4.80
-
Average
March
Ap"
Il ay
Jun
July
August
September
October
Alfalfa Boulder
4.71
5.87
7.21
8.32
8.77
7.54
5.48
4.00
Grass Boulder
3.38
4.40
5.61
6.58
6.91
5.90
4.16
2.80
Percentage Relation Boulder
Grass to Alfalfa Ratio
-
74.91%
77.81%
79.06%
78.86%
78.21%
75.91%
-
Alfalfa Cedaredge
-
2.53
5.04
6.49
6.70
5.91
4.35
-
Assumed Grass Cedaredge
-
1.90
3.92
5.13
5.28
4.62
3.30
-
Alfalfa Hotchkiss
-
2.46
5.80
7.93
8.20
7.04
5.22
-
Assumed Grass Hotchkiss
-
1.84
4.51
6.27
6.46
5.51
3.96
-
Average (Grass Boulder,
Assumed Cedaredge, Assumed
Hotchkiss)
-
2.71
4.68
5.99
6.22
5.34
3.81
-
1 Data was obtained from the Colorado Agricultural Meteorological Network (COAGMET) found at: http://ccc.atmos colostate.edu/-coagmet/index.php
App. C-2
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
Table 2. Irrigation Demand by Cover Type
High Performance Lawn (HPL)
Description
Units
April
May
June
Month
July
August
September
October
Total
May
ET0 Grass
Inches
4.40
5.61
6.58
6.91
5.90
4.16
2.80
36.35
Ko
0.81
0.90
0.90
0.90
0.90
0.90
0.90
0.90
-
ETLawn
Inches
3.96
5.05
5.92
6.22
5.31
3.74
2.52
32.72
Rain
Inches
1.50
1.50
1.30
1.30
1.30
1.70
1.70
10.30
Effective Rain Ratio
0.50
1.00
0.50
0.50
0.50
0.50
0.50
0.50
-
Effective Rain
Inches
1.50
0.75
0.65
0.65
0.65
0.85
0.85
5.90
Irrigation Need
Inches
2.46
4.30
5.27
5.57
4.66
2.89
1.67
26.82
I.E.
0.80
0.80
0.80
0.80
0.80
0.80
0.80
0.80
-
Irrigation Required
Inches
3.07
5.37
6.59
6.96
5.82
3.62
2.08
33.52
Irrigation Required
Acre-Ft/Acre
0.26
0.45
0.55
0.58
0.48
0.30
0.17
2.79
Irrigation Required
Gal/Acre
83,423
145,920
178,947
189,104
158,021
98,231
56,608
910,254
Traditional Performance Lawn (TPL)
Description
Units
April
May
June
Month
July August
September
October
Total
ETD Grass
Inches
4.40
5.61
6.58
6.91
5.90
4.16
2.80
36.35
Ko
0.81
0.81
0.81
0.81
0.81
0.81
0.81
-
ETLawn
Inches
3.56
4.54
5.33
5.60
4.77
3.37
2.27
29.45
Rain
Inches
1.50
1.50
1.30
1.30
1.30
1.70
1.70
10.30
Effective Rain Ratio
1.00
0.50
0.50
0.50
0.50
0.50
0.50
-
Effective Rain
Inches
1.50
0.75
0.65
0.65
0.65
0.85
0.85
5.90
Irrigation Need
Inches
2.06
3.79
4.68
4.95
4.12
2.52
1.42
23.55
I.E.
0.80
0.80
0.80
0.80
0.80
0.80
0.80
-
Irrigation Required
Inches
2.58
4.74
5.85
6.19
5.16
3.15
1.77
29.43
Irrigation Required
Acre-Ft/Acre
0.21
0.40
0.49
0.52
0.43
0.26
0.15
2.45
Irrigation Required
Gal/Acre
69,989
128,783
158,846
167,987
140,013
85,522
48,062
799,202
App. C-3
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
Low Maintenance Performance Lawn (LPL)
Description
Units
-
April
-
June
Month
-
July August
September
October
Total
May
ETo Grass
Inches
4.40
5.61
6.58
6.91
5.90
4.16
2.80
36.35
Ko
0.72
0.72
0.72
0.72
0.72
0.72
0.72
-
ETLawn
Inches
3.17
4.04
4.74
4.98
4.24
3.00
2.01
26.17
Rain
Inches
1.50
1.50
1.30
1.30
1.30
1.70
1.70
10.30
Effective Rain Ratio
1.00
0.50
0.50
0.50
0.50
0.50
0.50
-
Effective Rain
Inches
1.50
0.75
0.65
0.65
0.65
0.85
0.85
5.90
Irrigation Need
Inches
1.67
3.29
4.09
4.33
3.59
2.15
1.16
20.27
I.E.
0.80
0.80
0.80
0.80
0.80
0.80
0.80
-
Irrigation Required
Inches
2.08
4.11
5.11
5.41
4.49
2.68
1.46
25.34
Irrigation Required
Acre-Ft/Acre
0.17
0.34
0.43
0.45
0.37
0.22
0.12
2.11
Irrigation Required
Gal/Acre
56,556
111,645
138,745
146,871
122,004
72,814
39,516
688,151
Notes:
ETo = Historical Grass Reference evapotranspiration for the growing season of April 1 to Oct 31
Kc = Crop coefficient for cool season turfgrass mowed at 2.0 to 3.0 inches and depending upon the various uses of the lawn
ETiawn = Water requirement for the lawn (ETo x Kc)
Rain = Historical rainfall
Eff. Rain = Effective rainfall 100% for April, 50% for all other months
Water Need = ETawn - Eff. Rainfall
I.E. = Irrigation efficiency which includes sprinkler system performance and management capability
IWR = Irrigation Water Requirement in inches. IWR = Water Need / I.E.
Lawn Types:
High Performance Lawn describes a lawn that is heavily used such as sports fields or high -use parks or requires a very high aesthetic appearance because of
surrounding uses.
Traditional Performance Lawn describes the type of lawn found in most residential neighborhoods, parks, businesses, shopping centers etc. where foot traffic
and uses are not excessive.
Low Maintenance Performance Lawn describes a lawn that is seldom used for activities but is used to cover the ground to control erosion, or weed infestation
or serve as a firebreak. Traffic medians, greenbelts, detention ponds or even home lawns could be in this category. Typically these lawns require less mowing
and fertilizer as well as less water.
App. C-4
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
Table 3. Summary of Irrigated Areas by Filing
Tract ID or
Block # Tract or Lot Use
High Performance Traditional Low Maintenance
Unusable Lawn Performance Lawn Performance Lawn
Area Area
(Acre) (SQ FT) (SQ FT) (Acre) (SQ FT) (Acre) (SQ FT) (Acre)
TOTAL
6,932,310
157.93 3,927,327
249,615
5.73
2,442,408
56.07 6,932,310 21.17
Filing 1
AC
Common Area
173,540
3.98
101,125
10,113
0.23
30,338
0.70
60,675
1.39
AE
Common Area
1,046
0.02
1,046
105
0.00
314
0.01
628
0.01
AV
Common Area
20,736
0.48
18,696
1,870
0.04
5,609
0.13
11,217
0.26
AY
Common Area
10,205
0.23
10,205
1,021
0.02
3,062
0.07
6,123
0.14
AB
Garden/Orchard
107,019
2.46
86,996
26,099
0.60
8,700
0.20
52,198
1.20
AG
Irrigation &
Maintenance
58,252
1.34
31,148
0
0.00
15,574
0.36
15,574
0.36
AA
Neighborhood Center
100,109
2.30
100,109
5,005
0.11
50,055
1.15
45,049
1.03
AH
Open Space
13,043
0.30
10,921
0
0.00
0
0.00
0
0.00
AP
Open Space
102,372
2.35
102,372
0
0.00
0
0.00
0
0.00
AU
Open Space
18,335
0.42
18,335
0
0.00
0
0.00
0
0.00
Al
Park
243,291
5.59
242,103
48,421
1.11
193,682
4.45
0
0.00
RC
ROW
225,152
5.17
225,152
0
0.00
112,576
2.58
112,576
2.58
RF
ROW
66,876
1.54
46,096
0
0.00
12,658
0.29
12,658
0.29
B3
Attached Home
123,187
2.83
-
0
0.00
57,140
1.31
0
0.00
B4
Town
54,613
1.25
-
0
0.00
22,060
0.51
0
0.00
B5
Town
35,194
0.81
-
0
0.00
15,896
0.36
0
0.00
B6
Town
171,306
3.93-
0
0.00
75,980
1.74
0
0.00
Filing 1 Total
1,524,276
34.99
994,304
92,632
2.13
603,641
13.86
316,698
7.27
Filing 2
BD
Common Area
8,397
0.19
8,397
840
0.02
2,519
0.06
5,038
0.12
BE
Common Area
7,856
0.18
4,081
408
0.01
1,224
0.03
2,449
0.06
BF
Common Area
3,575
0.08
3,575
358
0.01
1,073
0.02
2,145
0.05
BG
Common Area
16,881
0.39
16,881
1,688
0.04
5,064
0.12
10,129
0.23
BA
Neighborhood
Garden/Orchard
62,323
1.43
55,897
16,769
0.38
5,590
0.13
33,538
0.77
BH
Open Space
73,448
1.69
73,448
0
0.00
0
0.00
0
0.00
RB
ROW
139,192
3.20
129,480
0
0.00
59,884
1.37
59,884
1.37
B7
Village/Attached
Home
130,331
2.99-
0
0.00
55,861
1.28
0
0.00
B8
Village/Attached
Home
83,618
1.92
-
0
0.00
38,114
0.87
0
0.00
Filing 2 Total
525,621
12.07
291,760
20,063
0.46
169,329
3.89
Filin• 3
BT
Common Area
2,514
0.06
2,514
251
0.01
754
0.02
1,508
0.03
BU
Common Area
4,395
0.10
4,395
440
0.01
1,319
0.03
2,637
0.06
BV
Common Area
16,015
0.37
16,015
1,602
0.04
4,805
0.11
9,609
0.22
App. C-5
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
Tract ID or
Block #
Tract or Lot Use
Area
(SQ FT)
Area
(Acre)
Unusable
Area
(SQ FT)
High Performance
Lawn
(SQ FT) (Acre)
Traditional
Performance Lawn
(SQ FT) (Acre
Low Maintenance
Performance Lawn
(SQ FT) (Acre)
BB
Open Space
306,225
7.03
205,048
0
0.00
0
0.00
0
0.00
BI
Park
213,052
4.89
194,903
38,981
0.89
155,922
3.58
0
0.00
RD
ROW
88,815
2.04
85,401
0
0.00
40,994
0.94
40,994
0.94
B9
TownNillage
110,307
2.53
-
0
0.00
45,155
1.04
0
0.00
B10
Town
132,680
3.05
-
0
0.00
61,710
1.42
0
0.00
Filing 3 Total
874,003
20.06
508,276
41,273
0.95
310,658
7.13
54,748
1.26
Filing 4
BK
Common Area
17,550
0.40
17,550
1,755
0.04
5,265
0.12
10,530
0.24
BL
Common Area
5,957
0.14
5,957
596
0.01
1,787
0.04
3,574
0.08
BQ
Common Area
43,379
1.00
38,522
3,852
0.09
11,557
0.27
23,113
0.53
BR
Common Area
4,811
0.11
3,837
384
0.01
1,151
0.03
2,302
0.05
BS
Common Area
5,190
0.12
4,046
405
0.01
1,214
0.03
2,428
0.06
BN
Open Space
343,044
7.88
308,063
0
0.00
0
0.00
0
0.00
BO
Open Space
68,465
1.57
65,939
0
0.00
0
0.00
0
0.00
BJ
Park
107,098
2.46
107,098
21,420
0.49
85,678
1.97
0
0.00
RA
ROW
167,649
3.85
163,090
0
0.00
79,265
1.82
79,265
1.82
RH
ROW
73,186
1.68
71,801
0
0.00
35,208
0.81
35,208
0.81
B11
Town
98,482
2.26
-
0
0.00
40,262
0.92
0
0.00
B12
Village
50,813
1.17
-
0
0.00
23,110
0.53
0
0.00
B13
Town
85,318
1.96
-
0
0.00
40,889
0.94
0
0.00
B14
Town
37,789
0.87
-
0
0.00
17,842
0.41
0
0.00
B15
Town
92,693
0.92
-
0
0.00
44,320
1.02
0
0.00
Filing 4 Total
1,201,424
26.37
785,902
28,411
0.65
387,546
8.90
156,420
3.59
Filing 5
AL
Common Area
94,265
2.16
9,427
9,427
0.22
28,280
0.65
56,559
1.30
AZ
Common Area
7,570
0.17
7,570
757
0.02
2,271
0.05
4,542
0.10
AM
Neighborhood
Garden/Orchard
51,038
1.17
46,683
14,005
0.32
4,668
0.11
28,010
0.64
AN
Open Space
137,118
3.15
137,118
0
0.00
0
0.00
0
0.00
RG
ROW
77,902
1.79
77,902
0
0.00
38,951
0.89
38,951
0.89
AO
Water&Wastewater
Utility
47,383
1.09
45,103
0
0.00
21,412
0.49
21,412
0.49
B1
Town
132,581
3.04
-
0
0.00
61,636
1.41
0
0.00
B2
Town
66,569
1.53-
0
0.00
31,027
0.71
0
0.00
Filing 5 Total
614,426
14.11
323,803
24,188
0.56
188,244
4.32
149,473
3.43
„
Filing 6
AR
Common Area
50,021
1.15
50,021
5,002
0.11
15,006
0.34
30,013
0.69
AT
Common Area
29,908
0.69
29,908
2,991
0.07
8,972
0.21
17,945
0.41
CD
Common Area
41,523
0.95
36,770
3,677
0.08
11,031
0.25
22,062
0.51
App. C-6
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
Tract ID or
Block #
Tract or Lot Use
Area
(SQ FT)
Area
(Acre)
Unusable
Area
(SQ FT)
High Performance
Lawn
(SQ FT)
(Acre)
Traditional
Performance
(SQ FT)
Lawn
(Acre)'I
Low Maintenance
Performance Lawn
(SQ FT) (Acre)
AQ
Open Space
64,760
1.49
40,229
0
0.00
0
0.00
0
0.00
CE
Open Space
637,236
14.63
451,147
0
0.00
0
0.00
0
0.00
AX
Park
180,613
4.15
156,891
31,378
0.72
125,513
2.88
0
0.00
RE
ROW
150,916
3.46
137,106
0
0.00
61,648
1.42
61,648
1.42
B17
Village
135,486
3.11
-
0
0.00
56,615
1.30
0
0.00
B18
Village
61,000
1.40
-
0
0.00
25,125
0.58
0
0.00
B19
Estate
83,412.00
1.91
-
0
0.00
43,359
1.00
0
0.00
B20
Town
106,093
2.44
-
0
0.00
52,270
1.20
0
0.00
B21
Town
23,939
0.55-
0
0.00
9,554
0.22
0
0.00
B22
Estate
97,842
2.25
-
0
0.00
70,982
1.63
0
0.00
Filing 6 Total
1,662,749
38.17
902,072
43,048
0.99
480,074
11.02
131,667
3.02
Filing 1A
AD1
ROW
34,504
0.79
34,504
0
0.00
34,504
0.79
0 0.00
B25
Garden Home
96,494
2.22-
0
0.00
47,171
1.08
0 0.00
Filing 1A Total
130,998
3.01
34,504
0
0.00
81,675
1.87
Filing 1B
AJ1
ROW
16,702
0.38
16,702
0
0.00
16,702
0.38
0 0.00
B26
Garden Home
53,224
1.22
0
0
0.00
24,318
0.56
0 0.00
Filing 1B Total
69,926
1.61
16,702
0
0.00
41,020
0.94
0 0.00
Filin . 2A
BC1
ROW
28,684
0.66
28,684
0
0.00
28,684
0.66
0
0.00
B24
Garden Home
108,814
2.50-
0
0.00
46,184
1.06
0
0.00
Filing 2A Total
137,498
3.16
28,684
0
0.00
74,868
1,72
0
0.00
Filing 4A
BM1 ROW
24,073
0.55
24,073 0
0.00
24,073
0.55
0
0.00
BM2 ROW
1,928
0.04
1,928 0
0.00
1,928
0.04
0
0.00
B23 Garden Horne
102,350
2.35
- 0
0.00
45,044
1.03
0
0.00
Filing 4A Total
128,351
3laj
0
i
t&.3
0
0.00
AK1 ROW
0
0.35
0
0.00
15,319
0.35
15,319
0.00
15,319
B27 Garden Home
47,719
1.10
- 00.00
18,989
0.44
0
0.00
Filing 5A Total
63,038
1.45
a
0.00
34,308
0.79
0
0.00
App. C-7
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
Table 4. Monthly and Total Raw Water Demand
Description
nits
April
MONTH
July
September
October
Total
May June
August
High Performance Lawn (HPL) Demand
Gal/Acre
83,423
145,920
178,947
189,104
158,021
98,231
56,608
910,254
Acre-ft/Acre
0.26
0.45
0.55
0.58
0.48
0.30
0.17
Traditional Performance Lawn (TPL) Demand
Gal/Acre
60,146
110,671
136,506
144,362
120,322
73,495
41,303
686,806
Acre-ft/Acre
0.21
0.40
0.49
0.52
0.43
0.26
0.15
Low Performance Lawn (LPL) Demand
Gal/Acre
48,602
95,944
119,232
126,215
104,846
62,574
33,959
591,372
Acre-ft/Acre
0.17
0.34
0.43
0.45
0.37
0.22
0.12
2.13
Filing 1: HPL Area
Acre
Filing 1: TPL Area
Acre
13.86
Filing 1: LPL Area
Acre
7.27
Filing 1 Raw Water Demand1
Acre -ft
4.19
7.80
9.63
10.19
8.49
5.16 2.88 48.34
ft3/s
0.239
0.445
0.550
0.582
0.484
0.295 0.165
Gal/Min.
107.24
199.79
246.76
261.01
217.41
132.25 73.87
Filing 1A ,
Filing 1A: HPL Area
Acre
0.00
Filing 1A: TPL Area
Acre
1.87
Filing 1A: LPL Area
Acre
0.00
Filing 1A Raw Water Demand1
Acre -ft
0.35
0.64
0.79
0.83
0.69
0.42
0.24
3.95
ft3/s
0.020
0.036
0.045
0.047
0.040
0.024
0.014
Gal/Min.
8.87
16.31
20.12
21.28
17.73
10.83
6.09
Filing 1 B: HPL Area
Acre
0.00
Filing 1B: TPL Area
Acre
0.94
Filing 1B: LPL Area
Acre
0.00
Filing 18 Raw Water Demand1
Acre -ft
0.17
0.32
0.39
0.42
0.35
0.21
0.12
1.98
ft3/s
0.010
0.018
0.023
0.024
0.020
0.012
0.007
Gal/Min.
4.45
8.19
10.11
10.69
8.91
5.44
3.06
Filing 2 AIM
Filing 2: HPL Area
Acre
0.46
Filing 2: TPL Area
Acre
3.89
Filing 2: LPL Area
Acre
2.60
Filing 2 Raw Water Demand1
Acre -ft
1.22
2.29
2.83
3.00
2.49
1.51
0.84
14.20
ft3/s
0.070
0.131
0.162
0.171
0.142
0.086
0.048
Gal/Min.
31.33
58.70
72.55
76.74
63.90
38.80
21.61
Filing 2A: HPL Area
Acre
0.00
App. C-8
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
■ Description
MONTH -11
Units Total
April May June July August September October
Acre 1.72
Filing 2A: TPL Area
Filing 2A: LPL Area Acre 0.00
Filing 2A Raw Water Demand1
Acre -ft 0.32
0.58
0.72
0.76
0.63
0.39 0.22
3.62
ft3/s 0.018
0.033
0.041
0.043
0.036
0.022 0.012
Gal/Min. 8.13
14.95
18.44
19.50
16.26
9.93 5.58
Filing 3
Filing 3: HPL Area
Acre
0.95
Filing 3: TPL Area
Acre
7.13
Filing 3: LPL Area
Acre
1.26
Filing 3 Raw Water Demand1
Acre -ft
1.75 3.22 3.97 4.20 3.50
2.14 1.20 19.96
ft3/s
0.100 0.184 0.226 0.240 0.200
0.122 0.068
Gal/Min.
44.74 82.39 101.64 107.49 89.59
54.70 30.73
Acre
0.65
Filing 4: HPL Area
Filing 4: TPL Area
Acre
8.90
Filing 4: LPL Area
Acre
3.59
Filing 4 Raw Water Demand1
Acre -ft
2.34
4.37
5.40 5.71 4.76 2.89
1.62
27.09
ft3/s
0.134
0.249
0.308 0.326 0.272 0.165
0.092
Gal/Min.
60.06
111.97
138.30 146.29 121.85 74.10
41.38
Filing 4A
Filing 4A: HPL Area
Acre
0.00
Filing 4A: TPL Area
Acre
1.63
Filing 4A: LPL Area
Acre
0.00
Filing 4A Raw Water Demand1
Acre -ft
0.30
0.55
0.68
0.72
0.60
0.37
0.21
3.44
ft3/s
0.017
0.032
0.039
0.041
0.034
0.021
0.012
Gal/Min.
7.71
14.19
17.50
18.51
15.43
9.42
5.30
Filing 5
•
Acre
0.56
•
Acre
4.32
•
Acre
3.43
•
Acre -ft
1.45 2.73 3.37 3.57
2.97
1.80
1.00
16.89
ft3/s
0.083 0.156 0.192 0.204
0.169
0.103
0.057
Gal/Min.
37.18 69.85 86.35 91.34
76.06
46.13
25.66
Filing 5A: HPL Area
Acre
0.00
Filing 5A: TPL Area
Acre
0.79
Filing 5A: LPL Area
Acre
0.00
App. C-9
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
Description
Units
MONTH
Total
April
0.15
May
0.27
June
0.33
July
0.35
August
0.29
September
0.18
October
0.10
Filing 5A Raw Water Demand1
Acre -ft
1.66
ft3/s
0.008
0.015
0.019
0.020
0.017
0.010
0.006
Gal/Min.
3.72
6.85
8.45
8.94
7.45
4.55
2.56
Filing 6
Filing 6: HPL Area
Acre
0.99
Filing 6: TPL Area
Acre
11.02
Filing 6: LPL Area
Acre
3.02
Filing 6 Raw Water Demand1
Acre -ft
2.74
5.08
6.27
6.63
5.52
3.36
1.88
31.48
ft3/s
0.156
0.290
0.358
0.378
0.315
0.192
0.108
Gal/Min.
70.14
130.02
160.50
169.75
141.43
86.17
48.25
Total Demand Acre -ft
Total Demand CFS1 ft31s
14.97
0.85
27.84
1.59
34.38
1.96
36.37
2.08
30.29
1.73
18.44
1.05
10.31
0.59
172.61
1 CFS rate assumes 8 hours a day, six days a week for the month.
App. C-10
Raw Water Supply and Distribution Plan
River Edge Colorado, Garfield County, Colorado
APPENDIX D: DIVERSION/TP STATION, TREATMENT, AND
DP STATION SCHEMATIC AND PROCESS FLOW DIAGRAM
App. D-1
r pp
RiVenttge
COU)R ADO
Raw Water System Design Considerations
River Edge Colorado, Garfield County, Colorado
RAW WATER SYSTEM DESIGN CONSIDERATIONS
Source water: Glenwood Ditch
Total Raw Water system demand: 109.50 ac. ft. (0.37 cfs to 1.318 cfs)
Transfer Pump (TP) or Diversion Facility
• Maximum capacity and HP: 0.5 to 1.5 cfs or 224 to 673 gpm; 5 to 10 HP
• Transfer pipe size and material: 18 -inch HDPE
• Approximate Glenwood Ditch invert at diversion: 6014
• Approximate diversion design: 4 ft.(w) by 3 ft.(d); min. 0.5% slope
Pre-treatment Detention Pond
• Approximate crest and bottom elevations: 6016 and 6006
• Approximate emergency outlet elevation: 6013
• Approximate average storage volume: 120,000 to 140,000 cu. ft. (max.
72 hours of retention time)
Diversion Pump (DP)
• Maximum capacity and HP: 0.5 to 2.6 cfs or 224 to 1,211 gpm; <25 HP
• Discharge pressure: 100 psi
Distribution System:
• Pipe size and material: 4- to 8 -inches; HDPE
• Maximum pipe velocity: 5 fps
Filing
Approx. Length of Pipe (ft.)
Min. Elevation
Max. Elevation
1
7,975
5,998
6,024
2
2,290
6,008
6,024
3
4,325
6,000
6,024
4
3,240
6,014
6,022
5
3,280
5,989
5,998
6
6,130
6,016
6,034
App. D-2
Notes:
RIVET -Edge
C:OLORAIJO
Raw Water System Design Considerations
River Edge Colorado, Garfield County, Colorado
RAW WATER SYSTEM
PROCESS FLOW DIAGRAM (FIGURE 2)
Glenwood Ditch'
TP (Diversion or Pump) - 0.5 to 1.5 cfs
Overflow to Conveyance 1
Channels/Wetlands or
Cattle Creek
(Elev. 6,013)
Primary Filtration (Screen)
Pretreatment
Detention Basin
(120,000 to
140,000 cu. ft.)
DP (Pump) - 0.5 to 2.7 cfs
Secondary Filtration and/or Treatment
(If necessary)2
Line Pressure - 100 psi
1
Distribution
1. Treatment process considerations for Final Design include the following (at a minimum): suspended solids and organics.
Due to differential and seasonal considerations, these process considerations will be tested on the Glenwood Ditch at the
selected diversion site over a full irrigation season.
2. Secondary filtration and/or treatment will be evaluated based on the results of the tests conducted. Filtration technologies
will very depending on the irrigation equipment requirements and operational considerations.
App. D-3
`‘ \
I' F lT A .'A
I.
•
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\
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gas - -•. .-
�c.-\ A ,t \ o 1 I I
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EMERGENCY OUTFALL '',1<<\.\- y
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(ELEV. 6013)' C�p (COMMON AR �1v
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l
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\'‘,\`
•. \ ,> r
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.�adM
J, y I.
i++++ 0110 p +++
ARM-
5267 S.F 1�340 + + +
' L6 INTAKE + + S. + +
6 �- (ELEv 6008) + + +
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F; + + + +
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d6 + +:
+ + +
• ; 50006.7/,/, � + +
/ LOT 15 + +
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ice, I/0T D:7,- CD 1 0
��'` �� �� 6206 S.F\ ,j4) Tm� 1 I 40 �\
.Fi/,i`�S/ A' OVERFLOW TO CONVEYANCE /I 1 1 / V
/ix,
�/-�� `_ CHANNEL WETLANDS `r ,17- --- ---- -
---- - ----;;/;;---21 \
r I II / 1
%'622.9T S.F.,,' o' 1,.„-',-,-'
`\ % 548i r "a',� l T 1 1/ 1 I 1 a I 1
1 ,' /; % I 1 1
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L0610,' / 1' ��,
/ 9451 SF ; I v,v� %/ i i 1 1j
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\, 10645 11 ai' �'1 111 ;�/ ;.
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TRANSFER PUMP STATION (TP)
OR DIVERSION FACILITY
I I \'
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I
I1
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I I 11
DISTRIBUTION STATION (DP) j 1 I
BUILDING <100 SF1 I
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Ir
Owner/Developer:
Rimit-dge
COLORADO
Carbondale Investments, LLC
7999 HWY 82
Carbondale, CO 81623
Phone No:
970.456.5325
°P"LOT 1 `I
5288 S.F.
li''
t;+------------ 1 1
LOT 10 I
I' 5636 SF 1 I I
50
\
0
50 100
SCALE IN FEET
Title:
Raw Water Irrigation Schematic
Prepared by:
8140 Partners, LLC
01/14/2011
Exhibit:
1
App. D-4