HomeMy WebLinkAboutEngineer's OWTS Design Plan129 Cains Lane
Carbondale, CO 81623
970.309.5259
carla.ostberg@gmail.com
October 17, 2025 Project No. C1966
Ross and Lindey Brooks
lindseynunnbrooks@gmail.com
Subsurface Investigation and Onsite Wastewater Treatment System Design
4-Bedroom Residence
507 Westbank Road
Garfield County, Colorado
Ross and Lindsey,
CBO Inc. performed a subsurface investigation and completed an onsite wastewater treatment system
(OWTS) design for the subject residence. The 1.4-acre property is located outside of Glenwood Springs,
in an area where OWTSs are necessary.
Legal Description: Section: 2 Township: 7 Range: 89 Subdivision: WESTBANK RANCH SUB. #2 Lot: 7
Parcel ID: 2395-021-02-007
SITE CONDITIONS The property is currently developed with a 4-bedroom residence. The residence is served by an existing
OWTS. The system consists of a ‘Jet Aeration’ tank followed by a 10’ x 10’ x 12’ deep seepage pit. This
original system is documented by Garfield County Individual Sewage Disposal Permit 336 and received
final approval on November 10, 1976. ISDS Permit 1962 documents a repair for additional disposal area.
375 square feet of infiltrative area (or 20 ‘Standard’ Infiltrator® chambers) were installed and the permit
received final approval on February 28, 1992. Both permits indicate the system was designed to
accommodate a 3-bedroom residence.
The chamber system was experiencing saturation, and several efforts were made to determine the
cause. A Bull Run Valve was present after the septic tank. We ran a camera toward the old seepage pit
and toward the chamber system below. No cause of the issues were identified in that process; however,
we were able to determine the sewer line was clear and in good condition from the Bull Run Valve to
below the ditch crossing where we entered water in the sewer line. Attempts were also made to
excavated in the area of the seepage pit. While digging, we discovered saturation in the soil and gravels.
A portion of the ditch was also lined to see if water from the ditch might be migrating along the sewer line
towards the STA, but after completion of lining and monitoring of the saturation conditions, not a
significant amount of improvement was noted.
The septic tank and both existing STAs will be abandoned and replaced with the OWTS outlined in this
design.
The residence will continue to be served by a community water system. No OWTS component will come
within 25-feet of the water line.
A ditch bisects the property. A portion of the ditch is lined. The STA will be greater than 50-feet from any
unlined portion of the ditch.
Page 2
The proposed soil treatment area (STA) location is relatively flat. The proposed area will parallel
Westbank Road.
There should be no traffic or staging of material over the future STA site to avoid compaction of soils
prior to construction of the STA.
The site plan created for this design is not the result of a survey. We used the resources available to us,
including Google Earth images, a subdivision plat, and Garfield County GIS.
SUBSURFACE
The subsurface was investigated on May 28, 2025 by digging one soil profile test pit excavation (Test Pit). A
visual and tactile soil analysis was completed by Carla Ostberg at the time of excavation.1 Only one test pit
was excavated at that time because we were trying to formulate a plan for repair and replacement was not
contemplated. An additional Test Pit must be excavated prior to construction of the STA. This office
must be called to verify soils are consistent with those described in this design.
1 Carla Ostberg holds a Certificate of Attendance and Examination from the CPOW Visual and Tactile
Evaluation of Soils Training.
Page 3
The materials encountered in Test Pit #1 consisted of dark brown, moist loam to a maximum depth
explored of 7.0-feet. No bedrock or groundwater was encountered.
A sample of the soil was taken from Test Pit #1 at 3-feet below grade. Soil structure grade was
moderate. The soil formed a ball and a ribbon less than 1-inch in length before breaking. Soil structure
shape was blocky and consistence was friable. Soil texture was both gritty and smooth.
We have researched soils in the area through USGS Web Soil Survey. The report is enclosed. The area of
the proposed STA is identified by map unit symbol 6. The map unit name is Almy Loam, 1 to 12% slopes.
Typical soil profile from 0 to 8-inches consist of loam, 8 to 26-inches consist of fine sandy loam, and 26 to
60-inches of sandy clay loam.
Based on information provided from the available documented resources and our knowledge of soils in
the area, the soil is consistent with Soil Type 2, Loam, with moderate structure grade. A long-term
acceptance rate (LTAR) of 0.6 gallons per square foot will be used to design the STA.
Efforts to mitigate moisture levels in the soil include lining the upgradient ditch and minimizing irrigation
on the portion of the yard that will contain the STA. Photos of the proposed STA were taken in October
and not when the test pits were excavated.
Page 4
DESIGN SPECIFICATIONS The existing septic tank will be abandoned by pumping the tank and removing it or crushing the top,
bottom, and sides and filling in the void with onsite materials. The existing STAs will be abandoned in
place.
Design Calculations:
Average Design Flow = 75 GPD x 2 people/bedroom x 3 Bedrooms + 75 GPD (4th Bedroom) = 525 GPD
LTAR = 0.6 GPD/SF
525 GPD / 0.6 GPD/SF = 875 SF x 1.2 (gravity, bed) x 0.7 (chambers) = 735 SF
The OWTS design is based on 4-bedrooms. An average daily wastewater flow of 525 GPD will be used.
For the purposes of this OWTS design, Benchmark Elevation has been established as 100’ (existing
sewer line exiting the residence). CBO Inc. should be notified of any discrepancies or problems with
grade elevations of proposed components during installation of the OWTS.
OWTS Component Minimum Elevation
Primary Tank Inlet Invert Approximate horizontal distance 21’ / min. 2% fall /
min. 5.25” fall
Distribution Box Approximate horizontal distance 158’ / min. 1% fall
/ min. 19.75” fall
Infiltrative Surface Approximate horizontal distance 24’ to furthest bed
/ min. 1% fall to STA / min. 3” fall
*Elevations are based upon standard OWTS installation practices. Component elevations may change during
installation due to site conditions. Minimum grade refers to piping between components.
Page 5
The 4-inch sewer line should be replaced as close to the foundation as possible, eliminating any cast iron
sewer line. The sewer line must be minimum 4-inch Schedule 40 exiting the residence (this is an area
subject to traffic) and must have a double-sweep clean out and a minimum 2% grade to the septic tank.
The system installation must include a minimum 1250-gallon, two-compartment septic tank with an
Orenco® Biotube effluent filter on the outlet tee. We have specified a 1500-gallon, two-compartment
Infiltrator® poly septic tank as they are locally available. Any state-approved concrete or poly septic tank
may be substituted. Risers must bring the manhole lids to grade for access. If more than one riser is
added to the septic tank, an extension handle must be installed on the effluent filter.
The existing sewer line from going down the hill towards the ditch may remain in use. The sewer line
must be encased at least 10-feet on each side of the ditch crossing. See Encasement Detail (W4.0/5).
A double-sweep clean out should be placed on the 4-inch SDR-35 sewer line after the ditch. There
should be a minimum 1% fall to the distribution box.
Effluent will gravity flow to a distribution box, and then to two gravelless chamber beds. The distribution
box must be accessible from grade and must have flow equalizers, or similar product, installed on each
outlet pipe in the distribution box to assure equal flow to each bed.
A 4-inch diameter SDR-35 level manifold must be installed to connect each row of the chamber beds.
The chamber beds will consist of 3 rows of 11 ‘Quick 4’ Low Profile Plus Standard Infiltrator® chambers
for a total of 66 chambers and 792 square feet of infiltrative area. There must be at least 6-feet of
undisturbed soil between each bed. Inspection ports must be installed at each corner of the beds. Ports
may be cut to grade and placed in sprinkler boxes for access.
Irrigation directly over the STA should be minimized to the extent possible.
COMPONENT SPECIFICATIONS
The component manufacturers are typical of applications used by contractors and engineers in this area.
CBO Inc. must approve alternative components prior to installation of the OWTS. Requests must
be submitted, in writing, to our office for approval prior to installation. Component technical data
sheets are available upon request.
COMPONENT MANUFACTURER MODEL NO. COMMENTS
Septic Tank Infiltrator® IM-1530-2CP 1500-gallon, two-
compartment poly septic
tank (min. 1250-gallons)
Effluent Filter Orenco® 4” diameter full size filter
Tank Risers and Lids Orenco® Double-walled PVC Risers and Lids (24” diameter)
Distribution Box Polylok Distribution box, risers, lid, flow
equalizers (2) Chambers Infiltrator® ‘Quick 4’ Plus Standard Low Profile Chamber 66 ‘Quick 4’ Low Profile chambers
Construction must be according to the jurisdiction’s adopted On-Site Wastewater Treatment System
Regulations, the OWTS Permit, and this design.
Page 6
PERMIT APPLICATION INSTRUCTIONS
An OWTS Permit Application must be submitted to Garfield County Environmental Health Department.
https://www.garfield-county.com/environmental-health/filesgcco/sites/16/OWTS-Application-Complete-
Packet-Dec.-2019.pdf. If the OWTS Permit Application will be submitted with a Building Permit
Application, it should be submitted directly to Garfield County Building Department.
All questions regarding permit submission can be directed to Garfield County Environmental Health
Department, 970-945-6614 x8150.
VALIDITY PERIOD OF DESIGN DOCUMENTS
This design is valid for submission of an application for permitting for two (2) years from the date of the
design packet or upon a change in the county OWTS Regulation that could impact compliance with code
requirements. Continued use beyond this period or following a change in the regulation is not
recommended without review and update of design documents.
INSTALLATION CONTRACTOR
CBO Inc. expects that the installer be experienced and qualified to perform the scope of work outlined in this
design. The installer must review this design thoroughly and coordinate with our office in advance of
installation. Any additional conditions in this design or county permit must be completed and documented
prior to final approval of the OWTS installation. Communication between the installer and this office is
expected throughout the installation.
INSTALLATION OBSERVATIONS CBO Inc. must view the OWTS during construction. The OWTS observation should be performed before
backfill, after placement of OWTS components. Septic tanks, distribution devices, pumps, dosing
siphons, and other plumbing, as applicable, must also be observed. CBO Inc. should be notified 48 hours
in advance to observe the installation.
In an effort to improve the accuracy of the record drawing, we request that the installer provide a
sketch of the installation, including path of the sewer lines, water line installation (if applicable),
septic tank location, STA location, and measurements from building corners or another fixed
objects on the property. This sketch is most easily provided on Sheet W2.0 of the OWTS Design
Packet. Photographs of the installation and final cover are also requested to supplement our installation
documentation.
REVEGETATION REQUIREMENTS
An adequate layer of good quality topsoil capable of supporting revegetation shall be placed over the entire
disturbed area of the OWTS installation. A mixture of native grass seed that has good soil stabilizing
characteristics (but without taproots), provides a maximum transpiration rate, and competes well with
successional species. No trees or shrubs, or any vegetation requiring regular irrigation shall be placed over
the STA. Until vegetation is reestablished, erosion and sediment control measures shall be implemented
and maintained on site. The owner of the OWTS shall be responsible for maintaining proper vegetation
cover.
OPERATION INFORMATION AND MAINTENANCE
The property owner shall be responsible for the operation and maintenance of each OWTS servicing the
property. The property owner is responsible for maintaining service contracts for manufactured units,
alternating STAs, and any other components needing maintenance.
Page 7
Geo-fabrics or plastics should not be used over the STA. No heavy equipment, machinery, or materials
should be placed on the backfilled STA. Machines with tracks (not wheels) should be used during
construction of the STA for better weight distribution. Livestock should not graze on the STA. Plumbing
fixtures should be checked to ensure that no additional water is being discharged to OWTS. For example, a
running toilet or leaky faucet can discharge hundreds of gallons of water a day and harm a STA.
If an effluent filter or screen has been installed in the OWTS, we recommend this filter or screen be cleaned
annually, or as needed. If the OWTS consists of a pressurized pump system, we recommend the laterals be
flushed annually, or as needed.
The homeowner should pump the septic tank every two years, or as needed gauged by measurement of
solids in the tank. Garbage disposal use should be minimized, and non-biodegradable materials should not
be placed into the OWTS. Grease should not be placed in household drains. Loading from a water softener
should not be discharged into the OWTS. No hazardous wastes should be directed into the OWTS.
Mechanical room drains should not discharge into the OWTS. The OWTS is engineered for domestic waste
only.
ADDITIONAL CONSTRUCTION NOTES If design includes a pump, weep holes must be installed to allow pump lines to drain to minimize risk of
freezing. The pump shall have an audible and visual alarm notification in the event of excessively high-
water conditions and shall be connected to a control breaker separate from the high-water alarm breaker
and from any other control system circuits. The pump system shall have a switch so the pump can be
manually operated.
Excavation equipment must not drive in the excavation of the STA due to the potential to compact soil.
Extensions should be placed on all septic tank components to allow access to them from existing grade.
Backfill over the STA must be uniform and granular with no material greater than minus 3-inch.
LIMITS: The design is based on information submitted. If soil conditions encountered are different from conditions
described in this report, CBO Inc. should be notified. All OWTS construction must be according to the
county regulations. Requirements not specified in this report must follow applicable county regulations.
The contractor should have documented and demonstrated knowledge of the requirements and
regulations of the county in which they are working. Licensing of Systems Contractors may be required
by county regulation.
Please call with questions.
Sincerely,
CBO Inc.
Carla Ostberg, MPH, REHS
507 Westban k Ro ad Legend
507 W es tbank Rd
200 ft
N
➤➤
N
Soil Map—Aspen-Gypsum Area, Colorado, Parts of Eagle, Garfield, and Pitkin Counties
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
10/18/2025
Page 1 of 3
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302600 302630 302660 302690 302720 302750 302780
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39° 28' 36'' N
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Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 13N WGS84
0 50 100 200 300
Feet
0 15 30 60 90
Meters
Map Scale: 1:1,220 if printed on A portrait (8.5" x 11") sheet.
Soil Map may not be valid at this scale.
MAP LEGEND MAP INFORMATION
Area of Interest (AOI)
Area of Interest (AOI)
Soils
Soil Map Unit Polygons
Soil Map Unit Lines
Soil Map Unit Points
Special Point Features
Blowout
Borrow Pit
Clay Spot
Closed Depression
Gravel Pit
Gravelly Spot
Landfill
Lava Flow
Marsh or swamp
Mine or Quarry
Miscellaneous Water
Perennial Water
Rock Outcrop
Saline Spot
Sandy Spot
Severely Eroded Spot
Sinkhole
Slide or Slip
Sodic Spot
Spoil Area
Stony Spot
Very Stony Spot
Wet Spot
Other
Special Line Features
Water Features
Streams and Canals
Transportation
Rails
Interstate Highways
US Routes
Major Roads
Local Roads
Background
Aerial Photography
The soil surveys that comprise your AOI were mapped at
1:24,000.
Warning: Soil Map may not be valid at this scale.
Enlargement of maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
scale.
Please rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Aspen-Gypsum Area, Colorado, Parts of
Eagle, Garfield, and Pitkin Counties
Survey Area Data: Version 16, Aug 29, 2025
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Aug 25, 2021—Sep
5, 2021
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
Soil Map—Aspen-Gypsum Area, Colorado, Parts of Eagle, Garfield, and Pitkin Counties
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
10/18/2025
Page 2 of 3
Map Unit Legend
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
6 Almy loam, 1 to 12 percent
slopes
4.3 69.1%
109 Uracca, moist-Mergel complex,
12 to 25 percent slopes,
extremely
1.9 30.9%
Totals for Area of Interest 6.2 100.0%
Soil Map—Aspen-Gypsum Area, Colorado, Parts of Eagle, Garfield, and Pitkin Counties
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
10/18/2025
Page 3 of 3
Aspen-Gypsum Area, Colorado, Parts of Eagle,
Garfield, and Pitkin Counties
6—Almy loam, 1 to 12 percent slopes
Map Unit Setting
National map unit symbol: jq6l
Elevation: 6,000 to 7,800 feet
Mean annual precipitation: 12 to 14 inches
Mean annual air temperature: 42 to 46 degrees F
Frost-free period: 85 to 105 days
Farmland classification: Farmland of statewide importance
Map Unit Composition
Almy and similar soils:80 percent
Minor components:20 percent
Estimates are based on observations, descriptions, and transects of
the mapunit.
Description of Almy
Setting
Landform:Hills, alluvial fans
Landform position (two-dimensional):Footslope
Down-slope shape:Linear
Across-slope shape:Linear
Parent material:Alluvium derived from calcareous sandstone
and/or alluvium derived from calcareous shale
Typical profile
H1 - 0 to 8 inches: loam
H2 - 8 to 26 inches: fine sandy loam
H3 - 26 to 60 inches: sandy clay loam
Properties and qualities
Slope:1 to 12 percent
Depth to restrictive feature:More than 80 inches
Drainage class:Well drained
Runoff class: Medium
Capacity of the most limiting layer to transmit water
(Ksat):Moderately high to high (0.20 to 2.00 in/hr)
Depth to water table:More than 80 inches
Frequency of flooding:None
Frequency of ponding:None
Available water supply, 0 to 60 inches: Moderate (about 8.6
inches)
Interpretive groups
Land capability classification (irrigated): 4e
Land capability classification (nonirrigated): 4e
Hydrologic Soil Group: B
Map Unit Description: Almy loam, 1 to 12 percent slopes---Aspen-Gypsum Area, Colorado,
Parts of Eagle, Garfield, and Pitkin Counties
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
10/18/2025
Page 1 of 2
Ecological site: R048AY306UT - Upland Loam (Wyoming Big
Sagebrush)
Other vegetative classification: ROLLING LOAM (null_20)
Hydric soil rating: No
Minor Components
Other soils
Percent of map unit:20 percent
Hydric soil rating: No
Data Source Information
Soil Survey Area: Aspen-Gypsum Area, Colorado, Parts of Eagle, Garfield, and
Pitkin Counties
Survey Area Data: Version 16, Aug 29, 2025
Map Unit Description: Almy loam, 1 to 12 percent slopes---Aspen-Gypsum Area, Colorado,
Parts of Eagle, Garfield, and Pitkin Counties
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
10/18/2025
Page 2 of 2
9,028
1,504.7
Map Viewer
This product is for informational purposes and may not have been prepared for, or be suitable for legal,
engineering, or surveying purposes. Users of this information should review or consult the primary data and
information sources to ascertain the usability of the information.
7,0161:
Feet1,1690
Legend
585
Notes
Location
1,169
Date Prepared: 10/4/2025 1:27:10 PM
Well Constructed
Final Permit
Ground Water
Geophysical Log
County
4
GARFIELD COUNTY BUILDING AND SANITATION DEPARTMENT
109 8th Street Suite 303
e Glenwood Splines, Colorado 81601 kel a 1-5,/,et50 he c e'en e 4 . 1
Phone(303) 945.8212 c' 7C 4 is p e t S < 4 /f /Y (' 44. •
c. EE f;G.s ftx'Mlr
This does not constitute
INDIVIDUAL SEWAGE DISPOSAL PERMIT N 1962 a building or use permit.
Owner Jeff and Nancy Carlson
System Location 0507 Westbank Road. Glenwood _Springs
Licensed Installer Wat rays (Inner run ti np
Conditional Construction approval is hereby granted for a:' ^1k gallon aT y Air; 7i9N r To
REMAIN. PAP G E
Septic Tank or _Aerated treatment unit.P 1O j E c 7 /o n•l Yh I 0 t) tJ U
rourtF t NJAs NepA lRPt'
Absorption area (or dispersal area) computed as follows:R (on) 1 PACT 0 F •
Perc rate of one inch in V minutes requires a minimum of sq. ft. of absorption area per bedroom.
Therefore the no. of bedrooms 3 x
1 / F.
ft, minimum ^ requirement =sq. ft. of absorption area.a total of
May we sug 3 g q / gyp O P Z A/ F l ..rI IM i G H i f' ( c r S )
Date 7, 4 / 1 17"Inspecto f i 1,,,L,.........._ . _
FINAL'APPROVAL OF SYSTEM:
No system shall be deemed to be in compliance with the Sewage Disposal Laws until the assembled system is approved prior to cover•
ing any part.
71 1 n y Septic Tank access for inspection and cleaning within 12" of ground surface or aerated access ports above ground
1,, t Pwk• surface.
I l Proper materials and assembly.
I I Trade name of septic tank or aerated treatment unit.
Adequate absorption (or dispersal) area. ZOP/ ("te 1 ( 75 Jo / /i -et 10 F Inn 1rlIP[1,
Y" \ _ Adequate compliance with permit requirements.
C -' teCT. Adequate compliance with County and State regulations /requirements.
other
Date 0- /3 / / Z^'Inspector '
1
RETAIN WITH RECEIPT RECORDS • PaNSTRUCTION SITE
CONDITIONS:
1. All installation must comply with all requirements oftheColorado State Board of Health Individual Sewage Disposal Systems
Chapter 26, 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. Connection to or use with any dwelling or structures not approved by the Building and Zoning office shall
automatically be a violption of 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
5500.00 fine — 6 months In (ail or both.).
Applicant: Green Copy O.partmant: Pink Copy
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Application
INDIVIDUAL SEWAGE DISPOSAL SYSTEM APPLICATION Approval by
County Official:
OWNER tJP 7f i r/ G h ( J . C L / or?bPSipers c+-
ADDRESS 03% 7 14)k c PHONE ctf t
CONTRACTOR i"Ur,7Y r)N Ch try e.
ADDRESS 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: County i/c)('p t(
Near what City of Town Ci (enw om 4 C 0f s Lot Size
Legal Description D S'O Gt/e. fbit. Pc /c 4 /e5tLk f L , )
3 L
WASTES TYPE:1 Dwelling Transient Use
Commercial or Institutional Non- domestic Wastes
Other - Describe
BUILDING OR SERVICE TYPE:r s an-) r t.
Number of bedrooms Number of persons
Garbage grinder 90 Automatic washer Dishwasher
SOURCE AND TYPE OF WATER SUPPLY: well spring stream or creek
Give depth of all wells within 180 feet of system:OA
If supplied by community water, give name or supplier: 1/14t / %Ac. C, h
GROUND CONDITIONS:
Depth to bedrock:0/1 G_2o wr
Depth to first Ground Water Table: Ai / / , o w h7
Percent ground slope:R f
DISTANCE TO NEAREST COMMUNITY SEWER SYSTEM:r'
Was an effort made to connect to community system? No
TYPE OF INDIVIDUAL SEWAGE DISPOSAL SYSTEM PROPOSED:
1/1 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? V(7
SOIL PERCOLATION TEST RESULTS: To be completed by Registered Professional Engineer.)
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 Mo.
Nance, address and telephone of RPE who made soil absorption tests:
Name, address and telephone of RPE responsible for design of the system:
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
purposes of the evaluation of the application; and the issuance of the periutt subject to
such terms and conditions as deemed necessary to insure compliance with rules and regulations
adopted under Article 10, Title 25, C.R.S. 1973, as amended. The undersigned hereby certifies
that all statements 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 under-
stand 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 per-
jury as provided _ by /law.
Date ydd /9a—Signed ` ytt-e- -ei -9 attic -4397-t)
if
PLEASE DRAW AND ACCURATE MAP TO YOUR PROPERTY
4
This does not constitute
a building or use permit.
GARFIELD CgUNTY DEPARTMENT OF ENVIRONMENTAL HEALTH
2014 Blake Avenue
pA
Glenwood Springs, Colorado 81601 10 knAptv.plr
INDIVIDUAL SEW/jGE DISPOSAL PERMIT 21 V 836
zti q Z 1q -
Gerald W. Fairbanks, Jr. Owner Iu! :.. . l ._ t 1.
Lot 7, Filing 2 - WestbankSystemLocation 1A u.i lrn.v..k .,
Licensed Contractor owner
o
Conditional Construction approval is hereby granted for a OD gallon
Septic Tank or Aerated treatment unit.
Absorption area (or diapersal area) computed as follows:
If Perc
rate of one inch in S minutes requires a minimum of 2 t sq. ft. of absorption area per bedroom.
y Therefore the no of bedrooms _d x / ft. minimum requirement = a total of q, ft. of absorption area.
I May we suggest bee fl fie<s yi,0 ' q cc j /-z ' Pc 4 er
Date r/ /// /7'Inspector dC./G Get/-- r c2./.,y
ii
FINAL APPROVAL OF SYSTEM:I
No system shall be deemed to be in compliance with the Sewage Disposal Laws until the assembled system is approved prior to cover•
ing any part.
7 Septic Tank cleanout to within 12" of final grade or aerated access ports above grade.
Proper materials and assembly.
Trade name of septic tank or aerated treatment um
4 XC — Adequate absorption (or dispersal) area
et - Adequate compliance with permit requirements.
tm Adequate compliance with County and State regulations /requirements.
xCJaatcurm re) Cv r c- - it_ o /Lo P7-0 e /.r) c c'rOtheri°i. QeJUC", r..rJG r.E 5 c "% t) e uJ e 1 0°C
fir - ai.ri z
2'Inspector .
Fi F c -
Date _Inspector
RETAIN WITH RECEIPT RECORDS AT CONSTRUCTION SITE
CONDITIONS:
1. All installation must comply with All requirements of the County Individual Sewage Disposal Regulations, adopted pursuant to au. 1thoritygrantedin66-44-4, CRS 1963, amended 66 -3.14, CRS 1963.
2. This permit is valid only for connection to structures which have fully complied with County Zoning and building requirements.Connection to or use with any dwelling or structures not approved by the building and Zoning office shall automatically be a viola-
tion of a requirement of the permit and cause for both legal action and revocation of the permit.
3. Section III, 3.24 requires any person who constructs, alters, or installs an individual sewage disposal system in a manner which in-
volves a knowing and material variation from the terms or specifications contained in the application of permit commits a Class 1,Petty Offense ($500.00 fine — 6 months in jail or both.
Building Official — Permit White Copy Applicant — Green Copy Dept. — Pink Copy
Fees Paid $'75
INDIVIDUAL SEWAGE DISPOSAL SYSTEMS APPLICATION
Date c
s,NOTIFICATION OF PROPOSED DISCHARGE TO WATERS OF THE STATE
INDIVIDUAL
HOME
SEWAGE TREATMENT SYSTEM
Owner: Gerd/c1 4/ FA, r YJ// f 7 r
Mail Address: !' 7 e4 f o... 9 '`'2C City: c /,rA,,b,o, J Zip: Fc/6' Phone: 5 -52 a7
INFORMATION REGARDING PROJECT SUBMITTED FOR REVIEW
Attach separate sheets or report showing entire area with respect to surrounding areas,
topography of area, habitable buildings, location of potable water wells, soil percola-
tion test holes, soil profiles in test holes.
1. Location of 1i County G/v f'r /tl City or Town 6 /e, ,Sr
Legal Description t o f , 2 f, ' /',,, 7 2 Lot Size r
oO
2. No. of Bedrooms 3 Septic Tank Capacity GO G Aeration Unit Capacity v
3. Source of Domestic Water: Public (name):0 x , jv
Private: Well Depth Other Depth to first ground water table
4. Is facility within boundaries of a city /town or sanitation district?e
5. Distance to nearest sewer system:el y
Have you attempted to arrange a connection with the system?4 v
If rejected, what was the reason? v )
6. Rate of absorption in test holes shown on the location map, in minutes per inch of
7dropinwaterlevelafterholeshavebeensoakedfor24hours: 5CZ
7. Name, address, and telephone of person who made soil absorption tests:
SC -- z ' btu e7
8. Name, address, and telephone of person responsible for design of the system:
SC— C/t //
9. Express permission is hereby granted for the inspection of the above property by any
member of the Garfield County Environmental Health Department and /or such persons as
they may designate. Any withdrawal of this permission shall be in writing and receipt
acknowledged by the County Environmental Health Department.
10. I have been given an opportunity to read the Individual Disposal Systems Regulations of
Garfield County and I hereby agree to comply with all terms, conditions and requirements
included therein.
Datd Signature of Applicant
TO BE RETURNED TO HEALTH DEPT.)
PLEASE DRAW AN ACCURATE MAP TO YOUR PROPERTY
INDICATE BELOW THE LOCATION OF YOUR BUILDINGS, WATER SUPPLY AND DISTRI-
BUTION LINES, STREAMS, IRRIGATION DITCHES, ROADWAYS, AND BOUNDARY LINES
i
I
I
prt tr liZZ> ^n cam-
I
c__t. TO HEALTH DEPT.) 26:7
View Map
BROOKS, ROSS A & LINDSEY R
507 WESTBANK ROAD
GLENWOOD SPRINGS CO 81601
Summary
Account R010043
Parcel 239502102007
Property
Address
507 WESTBANK RD, GLENWOOD SPRINGS, CO 81601
Legal
Description
Section: 2 Township: 7 Range: 89 Subdivision: WESTBANK RANCH
SUB. #2 Lot: 7
Acres 1.4
Land SqFt 0
Tax Area 10
Mill Levy 74.4230
Subdivision WESTBANK RANCH SUB. #2
Map
Owner
Land
Unit Type SINGLE FAM.RES.-LAND - 1112 (RESIDENTIAL PROPERTY)
Square Feet 0
Acres 1.4
Garfield County, CO
10/4/25, 11:28 AM qPublic - Garfield County, CO - Property Record Card: R010043
https://qpublic.schneidercorp.com/Application.aspx?AppID=1038&LayerID=22381&PageTypeID=4&PageID=9447&Q=1567330110&KeyValue=R0100…1/3
Building #1
Units 1
Building Type SFR
Abstract Codes / (Property Type)SINGLE FAM.RES-IMPROVEMTS-1212 (RESIDENTIAL PROPERTY)
Architectural Style 2-STORY
Stories 2
Frame WOOD FRAME
Actual Year Built 1977
Gross Living Area 3,365
Total Heated SqFt 3,365
Bedrooms 4
Baths 3
Heating Fuel ELECTRIC
Heating Type ELEC BS BD
Air Conditioning NONE
Roof Type GABLE
Roof Cover CEDAR SHAK
Tax Year 2025 2024 2023 2022 2021
Actual Value $1,385,570.00 $1,200,580.00 $1,200,580.00 $798,770.00 $798,770.00
Tax Year 2025 2024 2023 2022 2021
Non School Assessed Value $86,600.00 n/a n/a n/a n/a
School Assessed Value $97,680.00 n/a n/a n/a n/a
Pre 2025 Assessed Value n/a $80,440.00 $80,440.00 $55,520.00 $57,110.00
*House Bill 24B-1001 established a separate assessment rate for school district residential properties, effective for the 2025 tax year and beyond. Click here for Assessor
FAQs
Tax Year 2025 2024 2023 2022 2021
Non School District Levy 31.271 n/a n/a n/a n/a
School District Levy 43.152 n/a n/a n/a n/a
Total Levy 74.423 74.423 72.518 81.025 79.78
Tax Year 2024 2023 2022 2021
Taxes Billed $5,986.60 $5,833.36 $4,498.52 $4,556.24
Click here to view the tax information for this parcel on the Garfield County Treasurer's website.
Sale Date Deed Type Reception Number Book - Page Sale Price
11/1/2012 Warranty Deed 826422 $640,000
5/10/2006 WARRANTY DEED 697636 1799-29 $665,000
5/13/2005 SPECIAL WARRANTY DEED 674190 1687-540 $0
3/13/2002 QUIT CLAIM DEED 599269 1338-161 $0
3/30/2000 SPECIAL WARRANTY DEED 562010 1182-201 $0
5/31/1991 SPECIAL WARRANTY DEED 0805-0336 $0
7/27/1988 Deeds 0738-0520 $0
3/11/1987 Deeds 0707-0034 $0
1/1/1900 Deeds 0535-0867 $0
Click here to view Property Related Public Documents
Buildings
Actual Values
Assessed Values
Mill Levies
Tax History
Transfers
Property Related Public Documents
Photos
10/4/25, 11:28 AM qPublic - Garfield County, CO - Property Record Card: R010043
https://qpublic.schneidercorp.com/Application.aspx?AppID=1038&LayerID=22381&PageTypeID=4&PageID=9447&Q=1567330110&KeyValue=R0100…2/3
Sketches
The Garfield County Assessor's Office makes every effort to produce the most accurate
information possible. No warranties, expressed or implied are provided for the data herein, its
use or interpretation. Data is subject to constant change and its accuracy and completeness
cannot be guaranteed.
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Last Data Upload: 10/3/2025, 8:27:30 PM
Contact Us Developed by
10/4/25, 11:28 AM qPublic - Garfield County, CO - Property Record Card: R010043
https://qpublic.schneidercorp.com/Application.aspx?AppID=1038&LayerID=22381&PageTypeID=4&PageID=9447&Q=1567330110&KeyValue=R0100…3/3
Gar eld County, CO
Developed by
Account Number R010043
Parcel Number 239502102007
Acres 1
Land SqFt 0
Tax Area 010
Mill Levy 74.4230
Physical Address 507 WESTBANK RD
GLENWOOD SPRINGS 81601
Owner Address BROOKS, ROSS A & LINDSEY R
507 WESTBANK ROAD
GLENWOOD SPRINGS CO 81601
Total Actual Value $0 Last 2 Sales
Date Price
11/1/2012 $640,000
5/10/2006 $665,000
Date created: 10/4/2025
Last Data Uploaded: 10/3/2025 10:27:30 PM
187 ft
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