HomeMy WebLinkAboutApplication- Permitt f
pit 50, 0t_377(ci
GARFIELD COUNTY BUILDING AND SANITATION DEPARTMENT Permit N° 3 9 31
109 8th Street Suite 303
Glenwood Springs, Colorado 81601
Phone (303) 945-8212
PROPERTY
SEWAGE DISPOSAL PERMIT
Assessor's Parcel No.
This does not constitute
a building or use permit.
Owner's Name 4' fi ICC Ill' �j ��L .P.resent Address 1 1 [ c IAtoSc- 4pt.,o Phone r - Pu / 13
System Location %'()fi Irio� `^"'GC.UUt V tv\ , �I�Y\� Irl — — 3, J4yja. 4 Lk r lv`
Legal Description of Assessor's Parcel No t — 1 s C ' Jl G to plkt se/(6_,
SYSTEM DESIGN
Septic Tank Capacity (gallon) Other
Percolation Rate (minuteslinch) Number of Bedrooms (or other)
Required Absorption Area - See Attached
Special Setback Requirements.
Date Inspector
FINAL SYSTEM INSPECTION AND APPROVAL (as installed)
Call for Inspection (24 hours notice) Before Covering Installation
System Installer
Septic Tank Capacity
Septic Tank Manufacturer or Trade Name
Septic Tank Access within 8" of surface
Absorption Area
r
isdp
Absorption Area Type and/or Manufacturer or Trade Name
Adequate compliance with County and State regulations/requirements
Other
Dater 11-141, 24 Inspector S /14Q1 0444 MY
RETAIN WITH RECEIPT RECORDS AT CONSTRUCTION SITE
*CONDITIONS:
1. All installation must comply with all requirements of the Colorado State Board of Health Individual Sewage Disposal Systems Chapter
25. Article 10 C R S 1973. Revised 1984
2. This permit is valid only for connection to structures which have fully complied with County zoning and building requirements. Con-
nection to or use with any dwelling or structures not approved by the Building and Zoning office shall automatically be a violation or a
requirement of the permit and cause for both legal action and revocation of the permit
3 Any person who constructs.alters, or installs an individual sewage disposal system in a manner which involves a knowing and material
variation from the terms or specifications contained in the application of permit commits a Class I, Petty Offense ($500.00 fine — 6
months in Jail or both).
White - APPLICANT Yellow - DEPARTMENT
ll INDIVIDUAL SEWAGE DISPOSAL SYSTEM APPLICATION
OWNER eO N \1 I YV Cie lin—
ADDRESS 114E 4-a c_ 4 -SPA) Lo PHONE q o (13 9
CONTRACTOR 90 n) V,�—
ADDRESS 5A -n4 % PHONE
PERMIT REQUEST FOR ( NEW INSTALLATION ( ) ALTERATION ( ) REPAIR
Attach separate sheets or report showing entire area with respect to surrounding areas, topography of area. habitable
building, location of potable water wells, soil percolation test holes, soil profiles in test holes (See page 4).
LOCATION OF PROPOSED FACILITY:
Near what City of Town (,G (1.Aux2 oil) SQ t;_ Size of Lot 36 , A- ate 5
Legal Description or Address Lo 'r ZZ Loo k.oc.33 NouNfr4'it) k4wc l i -
WASTES TYPE: ( DWELLING CIQ /2 O ( ) TRANSIENT USE
( ) COMMERCIAL OR INDUSTRIAL ( ) NON-DOMESTIC WASTES
( ) OTHER -DESCRIBE
BUILDING OR SERVICE TYPE: 11 C42,974 -"r to 13 CAc (1)
Number of Bedrooms 1 Number of Persons
( ) Garbage Grinder ( ) Automatic Washer (f),Dishwasher
SOURCE AND TYPE OF WATER SUPPLY: (JO WELL ( ) SPRING ( ) STREAM OR CREEK
If supplied by Community Water, give name of supplier:
DISTANCE TO NEAREST COMMUNITY SEWER SYSTEM: 12-
Was an effort made to connect to the Community System?
A site , lan is re s uired to be submitted that indicates the followin • MINIMUM distances:
(
Leach Field to Well:
Septic Tank to Well:
Leach Field to Irrigation Ditches, Stream or Water Course:
Septic System (septic tank & disposal field) to Property Lines:
100 feet
50 feet
50 feet
10 feet
YOUR INDIVIDUAL SEWAGE DISPOSAL SYSTEM PERMIT WILL NOT BE ISSUED WITHOUT
A SITE PLAN.
GROUND CONDITIONS:
Depth to first Ground Water Table 14) Geou,1 p i4-- 3
Percent Ground Slope ti' "(0 7 o tP vk L.
to
TYPE OF INDIVIDUAL SEWAGE DISPOSAL SYSTEM PROPOSED:
( SEPTIC TANK ( ) AERATION PLANT ( ) VAULT
( ) VAULT PRIVY ( ) COMPOSTING TOILET ( ) RECYCLING, POTABLE USE
( ) PIT PRIVY ( ) INCINERATION TOILET ( ) RECYCLING, OTHER USE
( ) CHEMICAL TOILET( ) OTHER -DESCRIBE
FINAL DISPOSAL BY:
( ) ABSORPTION TRENCH, BED OR PIT ( ) EVAPOTRANSPIRATION
( ) UNDERGROUND DISPERSAL ( ) SAND FILTER
( ) ABOVE GROUND DISPERSAL ( ) WASTEWATER POND
( ) OTHER -DESCRIBE
WILL EFFLUENT BE DISCHARGED DIRECTLY INTO WATERS OF THE STATE? 00
PERCOLATION TEST RESULTS: (To be completed by Registered Professional Engineer, if the Engineer does the
Percolation Test) S G e_ NQ tt7C—
Minutes per inch in hole No. 1 Minutes per inch in hole No. 3
Minutes per inch in hole No. 2 Minutes per inch in hole No.
Name, address and telephone of RPE who made soil absorption tests:
Name, address and telephone of RPE responsible for design of the system: SDQQ. 15 E ru4 r 11-4412iZ- i v c -
C 14-a, g e vv OA i rE (0
Applicant acknowledges that the completeness of the application is conditional upon such further mandatory and
additional tests and reports as may be required by the local health department to be made and furnished by the applicant
or by the local health department for purposed of the evaluation of the application; and the issuance of the permit is
subject to such terms and conditions as deemed necessary to insure compliance with rules and regulations made,
information and reports submitted herewith and required to be submitted by the applicant are or will be represented to
be true and correct to the best of my knowledge and belief and are designed to be relied on by the local department of
health in evaluating the same for purposes of issuing the permit applied for herein. I further understand that any
falsification or misrepresentation may result in the denial of the application or revocation of any permit granted based
upon said application and in legal action for perjury as provided by law.
Signed / • - � Date 5'- c_. D f
PLEASE DRAW AN ACCURATE MAP TO YOUR PROPERTY!!
\
}
\
1
County Road (Note the Road Number and Name)
5.:000'9)3n Q N
c
! 04
\/
2
5
Q ®
0
0 C40
C.
c
9 _\
0
Moll' 111.10N aleudisau
May 4, 2004
Ron Vincent
119 C AABC
Aspen, CO 81611
RE: Vincent Property Barn/Recreation cabin — Proposed OWS System, Lot 22, Lookout
Mountain Ranch Subdivision, Garfield County, CO
SE Job No. 24064.01
Dear Ron:
Pursuant to your request this letter/report presents our findings in regard to the feasibility and design of an
engineered Onsite Wastewater System (OWS) for the above referenced Site. This design is based on our
evaluation of the site conditions with information provided by others for use in supporting your application
to Garfield County. Our recommendations are in accordance with Garfield County and the State of
Colorado ISDS Regulations. Garfield County must permit any proposed improvement to the site. We
have reviewed the information forwarded to us, formulated an OWS design and created a site sketch with
construction details as part of our scope of work.
Conclusions
Based on our findings we believe that the design and installation of an approved OWS system is feasible in
accordance with the Regulations of Garfield County and the State of Colorado. We recommend that a
new 1000 gallon septic tank be installed that will discharge effluent to a 186 square foot soil absorption
trench system. The soil absorption system can be installed in natural soils and will be located within the
required setbacks down gradient of the proposed cabin, as delineated on the attached plan. The system will
meet all required setbacks and be installed within the general boundaries indicated on the plan. Our
Design is outlined below and delineated on the attached site plan.
Site Location and Existing Conditions
The subject site is located on Lot 22, Lookout Mountain Ranch Subdivision, Garfield County, CO off
County Road 120, in Garfield County, Colorado. The Site comprises approximately 10.23 acres. The site
is bounded in all directions by range lands and adjacents lots. The site has a moderate slope (15%-25%)
eastward. The site is covered with native and pasture grasses and scrub brush. Domestic water will be
supplied by an onsite well. There are no wells within 100' of the general vicinity of the absorption field.
Proposed Site Conditions
It is our understanding that you intend to construct an 800 S.F. cabin adjacent to the existing barn. The
maximum number of rooms to be utilized as bedrooms in the structure is 1. The proposed improvements
will include a new OWS system with appropriate site grading. The new structure is to be generally located
as shown on the plan.
502 Main Street • Suite A3 • Carbondale, CO 81623 • (970) 704-0311• Fax (970) 704-0313
SOPRIS ENGINEERING LLC
civil consultants
Ron Vincent
SE Job No. 24064.01
May 4, 2004
Page 2
Subsurface Conditions
A subsurface investigation was conducted on May 2, 2002 by Hepworth-Pawlak Geotechnical, Inc. (HP).
The HP report is dated May 8, 2004, Job Number 102 302. The subsoil encountered at the site consists of
topsoil overlying basalt fragments and cobbles in a silty sand matrix. Groundwater was not encountered in
the excavations observed at the time of the observations.
Percolation testing at the site was performed in June of, 2003. The results indicate a rate of 3-9 minutes
per inch. We are using 15 minutes per inch for design purposes. Additional testing and evaluations will
be performed during construction to confirm assumption made and assess any design changes that may be
required.
Design Criteria
The design flow is calculated as follows:
1 bedroom recreation cabin — design for equivalent 2 bedroom home population @ 2 person /bedroom = 4
persons.
From the Garfield County 1. S. D. S. Regulation:
Max. Design flow (Qd) = # of people x (avg. flow) x 1.5 gal/person/day.
Gallons per day per person for the subject house = 75 gal/person/day
Assume 4 -person population.
Qd = 4*75*1.5* =450 gal/day
Septic Tank Design
Based on Design Flow Qd.
Qd = 450 gal/day
Volume (V) of tank = Design Flow * 1.25
(30 hour retention time)
V = 450 gal/day * 1.25 days = 563 gallons
Use one 1000 -gallon dual compartment concrete septic tank
Ron Vincent
SE Job No. 24064.01
May 4, 2004
Page 3
Soil Absorption System Design
The field is sized by using the standard absorption area equation. A soil absorption trench system,
utilizing gravelless chambers is recommended. The State allows a 50% area reduction for the use of
gravelless infiltration chambers in a trench configuration. The chamber units may be installed in native
soils. Soil replacement with sand may be used in select locations if any scattered cobbles or rocks are
encountered. We are using 15 minutes/inch for design to account for permeability through the biomat.
Based upon the design percolation rate, the standard absorption area equation is:
A (SF) = Qd *(t)1
: where A = Area; Qd = Design flow (gal/day)
5 t = time in minutes
This design calculation results in a recommended minimum absorption area:
A= 450*(15)1/2 =349 sq. ft.
5
Apply a 50% reduction for utilizing gravelless infiltration chambers in a trench configuration.
349 x 0.5 = 175sq. ft.
Assume 15.5 square feet per chamber: 175 sq.ft. = 11.2 chambers Use 12 chambers
15.5 sq.ft/chamber(50%)
Use 186 SF of trench with gravelless chambers: Assume 3 -foot wide trenches with 6.25 -foot long chamber
units.
We recommend using a trench system composed of 2 trenches 38 feet long and 3 foot wide, containing 6
standard leaching chamber units in each trench. Excavate absorption trenches to accommodate a
minimum 186 SF of interior surface area.
Effluent Distribution System
A gravity distribution system will be utilized to transport effluent from the new concrete septic tank to a
distribution tee and to the head chamber of each trench via individual distribution lines. An effluent filter
will be installed in the secondary compartment of the septic tank to reduce suspended solid loading to the
absorption trenches and extend the life of the treatment media in the trenches. A 4" PVC effluent line will
discharge effluent to a distribution tee installed level, up gradient and adjacent to multiple trenches. The 4"
PVC line will be installed with a minimum 2% slope. The discharge pipe(s) will connect to the head of
the chamber row(s). Appropriate chamber end plates shall be installed on the inlet ends to prevent
scouring of the trench bottom surface. An inspection port should be installed on the top mid -point cut out
at the end chamber in each trench. This will allow for checking the performance of the system over time.
OWS Operation and Maintenance
Ron Vincent
SE Job No. 24064.01
May 4, 2004
Page 4
The engineered system shall be inspected on a regular basis and be properly maintained. The
responsibility for repair and maintenance of the system will remain with the Lot Owner. The owner shall
inspect the OWS and perform maintenance and repairs necessary to ensure that the system is operating
properly. The effluent filter shall be maintained when the tank is pumped or as needed. Suitable
component handles and extensions on the filter assembly will be installed to provide easy maintenance.
We recommend a periodic inspection be performed every 6 months.
The OWS system should require minimal maintenance. Several factors influencing the need for
maintenance include: actual wastewater flows versus design flows, the volume of kitchen/domestic waste
(excluding human waste and toilet paper), excessive household chemicals and other toxic liquids. The
tank, dispersal field and other applicable treatment system components should be visually inspected bi-
annually for debris, wear, damage, leaks, or other potential problems. In general, for a properly utilized
system, septic tanks should be pumped and inspected every 2 - 4 years. The effluent filters should be
cleaned every six months and at the time of pumping. Absorption fields should be maintained with
suitable cover and kept free of root invasive plants. Positive surface drainage away from the absorption
field should be maintained.
Construction and Inspections
Prior to construction of the permitted system the engineer should be contacted by the contractor and owner
well in advance to provide adequate time to discuss the system components with the contractor, answer
questions, resolve any conflict issues and schedule inspection site visits based on construction progress.
County Regulations require that the Design Engineers of record perform site inspections of the permitted
system during construction and provide "As -Built" documentation of the installed system to the County
after construction is complete.
General Notes
1) All materials and installation practices shall conform to the Garfield County Individual Sewage
Disposal Regulation.
2) All sewer lines and distribution lines in the system shall be 4" Schedule 40 or SDR -35 PVC unless
specified otherwise on the plans.
3) Add a two-way clean out on the service lines from the house and detached barn.
4) The system shall be plumbed to distribution effluent into the trenches with equal distribution.
5) The contractor shall ensure that the concrete septic tank and sewer lines are watertight.
6) The trench area must be protected to prevent damage from vehicular or livestock traffic and must be
crowned to divert drainage runoff away from the trenches to minimize surface infiltration.
7) The leaching chambers shall be installed level in each trench. A splash plate shall be installed on the
trench bottom surface below the inlet in each trench to prevent scouring from the effluent. The top of
the backfill over the chambers shall be covered with filter fabric or other suitable pervious material to
prevent the migration of fines from the overlying topsoil layer.
8) The trenches must have a minimum cover of 12 inches. A final cover of topsoil suitable for vegetation,
a minimum 4" deep, shall be placed from the top of the pervious cover layer to the finished surface
grade.
Ron Vincent
SE Job No. 24064.01
May 4, 2004
Page 5
9) The absorption trenches must be sodded or covered with vegetative ground cover.
Our design and recommendations are based upon data supplied to us by others. If subsurface or site
conditions are found to be different from those presented in this report, we should be notified to evaluate
the effect it may have on the proposed OWS.
If you have any question or need any additional information, please call.
Sincerely,
SOPRIS ENGINEERING, LLC
Paul E. Rutledge
Design Engineer
Mark Butler, P.E.
Project Engineer
10/12/2006 11:25 970-704-0313
.1
SOPRIS ENGINEERING
PAGE 01
FAX Transmittal
Ti: Janelle
ICea>IUen t Garfield County Planning and Zoning
Fn# 384-3470
Nate. October 12, 2006
Tetel Feint 3
SE Protect Ma. 24064.01
Fre.; Paul Rutledge
Messan Letter to Ron Vincent
0 Original not to follow
0 Original to follow by mail
0 Original to be delivered by messenger
0 Original to be picked up
502 main street • suite A3 n carbondale, CO 81623 n (970) 704.0311
fax (970) 704-0313
SOPRIS ENGINEERING LLC
civil consultants
10/12/2006 11:25 970-704-0313
SOPRIS ENGINEERING
PAGE 02
.i June 22, 2004
Ron Vincent
119 C AABC
Aspen, CO 81611
RE: AS -BUILT OWS -Vincent Property Barn/Recreation cabin —Lot 22, Lookout
Mountain Ranch Subdivision, Garfield County, CO
SE Job No. 24064.01
Dear Ron:
Pursuant to requirements, this letter provides documentation that the new Onsite Wastewater System (OWS)
recently installed at the above referenced site is in general compliance with the permitted design. Sopris
Engineering inspected the excavations and the installation of system components at various times during
construction prior to final backfill. The system constructed on site was designed and built to serve the needs of the
constructed 800 S.F. cabin adjacent to the existing ham. Sopris Engineering performed visits to inspect and
document the as built conditions of the constructed system. We have coordinated our efforts with the system
installer. The as built conditions and installation of the new OWS components is in compliance with the permitted
design specifications for the system.
The System was installed in accordance with Garfield County Regulations; the design presented in the Sopris
Engineering design drawing dated May 4, 2004. A 1000 -gallon dual compartment concrete septic tank was
installed with appropriate sanitary tees and an effluent filter in the outlet tee. The absorption field was constructed
with a total of 12 standard leaching chambers in two 38 foot long trenches with 6 chambers per trench. The
chambers were placed over approximately 12" of sand overlying approximately I-2 feet of onsite -screened pit run
type material in certain excavated areas. The chambers were backfilled with screened native soil consisting of
basalt fragments and cobbles in a silty sand matrix. The trenches were installed level. Inspection ports were
installed on each row at the end chamber. The chambers were installed in suitable soils across the field. No
ground water was encountered to a depth of 10 fret.
The field has individual distribution lines to the head of each chamber row from a distribution tee. The distribution
tee was installed level approximately 4 inches above the chamber inlets. The construction was completed utilizing
specified materials installed according to design. The minimum setback distances have been maintained.
OWS Operation and Maintenance
All components of the engineered OWS shall be inspected on a regular basis and be properly maintained.
The re establishment of vegetative cover over the field and responsibility for inspection and maintenance of
the system will remain with the Lot Owner or the owners representative. The owner shall periodically
inspect the OWS and to perform all maintenance and repairs as necessary to ensure that the system is in
good operating condition and performing as designed.
The OWS should require minimal maintenance. Several factors influencing the need for maintenance
include: actual wastewater flows versus design flows, the volume of kitchen/domestic waste (excluding
human waste and toilet paper), excessive household chemicals and other toxic liquids, The tank, sanitary
tees and effluent filter should be visually inspected bi-annually for clogging debris, damage. leaks, or other
502 Main Street • Suite A3 • Carbondale, CO 81623 • (970) 704-0311 • Fax (970) 704-0313
SOPRIS ENGINEERING ILO
civil consultants
•
Paul E. Rutledge
Design Engineer
10/12/2006 11:25 970-704-0313 SOPRIS ENGINEERING
PAGE 03
Ron Vincent
SE Job No. 24064.01
June 22, 2004
Page 2
potential problems. In general, for a properly utilized system, septic tanks should be pumped and inspected
every 3 - 7 years. The effluent filter should be cleaned every six months and at the time of pumping.
Absorption fields should be maintained with suitable vegetative cover and kept free of root invasive plants.
Positive surface drainage away from the absorption field should be maintained.
If you have any question or need any additional information, please call.
Sincerely,
SOPRIS ENGINEERING, LLC