HomeMy WebLinkAbout3434 Gypsum Creek Rd - 211120303001INDIVIDUAL SEWAGE DISPOSAL SYSTEM PERMIT
EAGLE COUNTY DEPARTMENT OF ENVIRONMENTAL HEALTH
P.O. Box 179 - 550 Broadway ® Eagle, Colorado 81631
Telephone: 328-7311 or 949-5257 or 927-3823
YELLOW COPY OF PERMIT MUST BE POSTED AT INSTALLATION SITE. PERMIT NO. 1028'
Please call for final inspection before covering any portion of installed system.
OWNER: Richard Bright PHONE: 425-4522
MAILING ADDRESS:, 112 n w- RRth AVe, Arvada, CD 80002
AGENT: PHONE:
SYSTEM LOCATION: Glypslim valley Wllilqnn qo`
LICENSED INSTALLER: LICENSE NO.
DESIGN ENGINEER OF SYSTEM:
INSTALLATION IS HEREBY GRANTED FOR THE FOLLOWING:
1250 GALLON SEPTIC TANK OR - GALLON AERATED TREATMENT UNIT,
DISPERSAL AREA REQUIREMENTS:
- SQUARE FEET OF SEEPAGE BED ___4D ?-SQUARE FEET OF TRENCH BOTTOM.
SPECIAL REQUIREMENTS: 140 lineal ft. 10" S132 per owner's request. Place system at least
11 Hap— -1--- inspection portals at end of each line.
Tt--
ENVIRONMENTAL HEALTH OFFICER:
DATE:
CONDITIONS:
t ALL INSTALLATIONS MUST COMPLY WITH ALL REQUIREMENTS OF THE EAGLE COUNTY INDIVIDUAL SEWAGE DISPOSAL SYSTEM
REGULATIONS, ADOPTED PURSUANT TO AUTHORITY GRANTED IN 25-10-104, C.R.S. 1973, AS AMENDED.
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 STRUCTURE NOT APPROVED BY THE ZONING AND
BUILDING DEPARTMENTS SHALL AUTOMATICALLY BE A VIOLATION OF A REQUIREMENT OF THE PERMIT AND CAUSE FOR BOTH
LEGAL ACTION AND REVOCATION OF THE PERMIT
3. SECTION 111, 3.21 REQUIRES ANY PERSON WHO CONSTRUCTS, ALTERS OR INSTALLS AN INDIVIDUAL SEWAGE DISPOSAL SYSTEM
TO BE LICENSED ACCORDING TO THE REGULATIONS.
FINAL APPROVAL OF SYSTEM: (TO BE COMPLETED BY INSPECTOR):
NO SYSTEM SHALL BE DEEMED TO BE IN COMLIANCE WITH THE EAGLE COUNTY INDIVIDUAL SEWAGE DISPOSAL SYSTEM REGULATIONS UNTIL THE SYSTEM IS APPROVED
PRIOR TO COVERING ANY PORTION OF THE SYSTEM.
INSTALLED ABSORPTION OR DISPERSAL AREA: 8 r -SQUARE FEET, tl,
INSTALLED SEPTIC TANK: 12:h _6' GALLONS 5— DEGREES S _0 FEET
SEPTIC TANK CLEANOUT TO WITHIN 8" OF FINAL GRADE, OR:
PROPER MATERIALS AND ASSEMBLY YES NO
COMPLIANCE WITH COUNTY/STATE REGULATION REQUIREMENTS: YES NO
ANY ITEM CHECKED NO REQUIRES CORRECTION BEFORE FINAL APPROVAL OF SYSTEM IS MADE. ARRANGE A RE -INSPECTION WHEN WORK IS COMPLETED.
COMMENTS:
ENVIRONMENTAL HEALTH OFFICER: DATE:
ENVIRONMENTAL HEALTH OFFICER: DATE:
(RE -INSPECTION IF NECESSARY)
RETAIN WITH RECEIPT RECORDS PERMIT
APPLICANT/AGENT:
OWNER:
AMOUNT PAID: RECEIPT #: CHECK #: - CASHIER:
'APPLICATION FOR INDIVIDUAL SEWAGE DISPOSAL SYSTEM PERMIT
ENVIRONMENTAL HEALTH OFFICE - EAGLE COUNTY Number:a "2-
P. 0. BOX 179
EAGLE, COLORADO 81631
949-5257 Vail 328-7311 Eagle 927-3823 Basalt
nrprnj_ATTnN TEST FEE 1,125.09
PERMIT APPLICATION FEE $150.00
NAME OF OWNER: � I C k 6-r(
, i A
MAILING ADDRESS: (7,,,2_cc1 a),
NAME OF APPLICANT (If different from owner):
ADDRESS:
_PHONE:
PHONE:
DESIGN ENGINEER OF SYSTEM (If applicable): 1111114--
ADDRESS: PHONE:
PERSON RESPONSIBLE FOR INSTALLATION OF SYSTEM:
LICENSED INSTALLER: YES NO
ADDRESS: �ett = PHONE:
PERMIT APPLICATION IS FOR: O NEW INSTALLATION ALTERATION REPAIR
LOCATION OF PROPOSED INDIVIDUAL,EWAGE DISPOSAL SYSTEM:
Physical Address: ar
-_ S �1 _ 1 4 F 6 0
Parcel Number: Lot Size: ail �14- V _'S 61 c ce-5
Legal Description: Z'4 rzrc/r/1
BUILDING OR SERVICE TYPE (Check applicable category):
(`C) Residential - Single Family Residential - Fourplex
Residential - Duplex Commercial (Type)
Residential - Triplex
NUMBER OF PERSONS: 4 NUMBER OF BEDROOMS -
WASTE TYPES (Check applicable cateciorieST: f,&^
Commercial or Institutional Dwelling
Non -Domestic Wastes Transient Use
Garbage Disposal ( Y) Dishwasher
Automatic Washer Spa Tub
Other (Specify) :
TYPE OF INDIVIDUAL SEWAGE DISPOSAL SYSTEM PROPOSED:
Septic Tank Composting Toilet ( Incineration Toilet
Vault Privy Greywater ( Chemical Toilet
Pit Privy Aeration Plant ( Recycling, Portable Use
Other Recycling, Other Use
WILL EFFLUENT BE DISCHARGED DIRECTLY INTO WATERS OF THE STATE: ( ) YES NO
IS SYSTEM DESIGNED FOR LESS THAN 2,000 GALLONS PER DAY: ( ) YES NO
WATER CONSERVATION PLAN: ( ) YES NO
NOTE: The Environmental Health Office may reduce the required absorption area upon
approval of an adequate water conservation plan.
SOURCE AND TYPE OF WATER SUPPLY: ( ) Well ) Spring Creek/Stream
Give depth of all wells within 200 feet of system: i0o t111L
If sup by co mu 1 Y W, ater, give name of supplier/__,�/,I�s (""A
i
it L=11 I � tP
SIGNATURE: DATE:
INFORMATION BELOW TO BE FILLED OUT BY ENVIRONMENTAL HEALTH OFFICER:
GROUND CONDITIONS: Percent ground slope
Depth to Bedrock (Per 81 profile hole)
Depth to Groundwater table
SOIL PERCOLATION TEST RESULTS: Minutes per inch in Hole #1
Minutes per inch in Hole #2
Minutes per inch in Hole #3
FINAL DISPOSAL BY:
Absorption Trench, Bed or Pit Evapotranspiration
Above Ground Dispersal Sand Filter
Under Ground Dispersal Wastewater Pond
Other
AMOUNT PAID: rw "7(D RECEIPT NUMBER DATE:
NOTE: SITE PLAN MUST BE ATTACHED TO APPLICATION.
MAKE ALL REMITTANCE PAYABLE TO: "EAGLE COUNTY TREASURER".
(Environmental Health Dept. - Rev. 4/88)
r
MADE IN U.S.A. NO. R 752 1/3
0
COMMUNITY DEVELOPMENT
DEPARTMENT
(303) 326.8730
EAGLE COUNTY, COLORADO
Date: November 27, 1990
Richard Bright
13200 W. 58th Ave.
Arvada, CO 80002 -_
RE: Final of ISIS Permit No. 1028
725 CHAMBERS AVE.
P.O. BOX 179
EAGLE, COLORADO S 1631
FAX POO 32V7207
This lezter is to inform you that the above referenced ISDS
Permit has been inspected and finalized. Enclosed is a copy zc
_etain for ycuy records. Also enclosed are informational sheets
regarding the care of your septic system.
If you have any questions regarding this p rmit . please contact
tale Eagin CDu:lt, Envir:,'nmentai Health Officer, P.O. Lot 179,
Eagle, color as 816!1 . We can also be reached Leyending on `: cur
calling area at the following numners: Eagle valley 323-£7.30:
Basalt/El Jebel 27-3EZ3.
Sincerely,
.mot /"' � 1�
Ro er C. Hosea
isst. Eni'ironmentai Health. Officer
e_icl: Informational Sheet.
Final ISDS Permit
CC: =rono file
1SDS file
Euiiding Permit file
H/alm
ISDS FERWT
i
PERCOLATION TEST
EAGLE COUNTY ENVIRONMENTAL HEALTH DEPT.
OWNER:
LEGAL DESCRIPTION:
MAILING ADDRESS:
TYPE OF DWELLING: NUMBER OF BEDROOMS
TEST HOLES PRE-SOAKED: YES
ka W 1: 0
ff*i
wamrp nrpTw TMOPr.c: OV rAT.T. V zirpr qr)TT. VDnrTT.r
11EMMIMMMIMENIal
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Im
=MMMIEEEI
limm=1MOMIUMMI
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Time to drop last inch_ -5,
PERC RATE: j MINIMUM SEPTIC TANK SIZE:
MINIMUM LEACH FIELD SIZE: � (,qz 4:�L-'
V
COMMENTS: /,-/0 -,L`r 10
P 14 4e a 1.eg � -t a(ee,,g mod /,l 5)oe,-�
PERC TEST DONE BY:
nvironmenta
rev. 6/90ks
th officer
DATE: / /— / Y-
COMMUNITY DEVELOPMENT
DEPARTMENT
(303) 328�8730
EAGLE COUNTY, COLORADO
Date: November 15, 1990
Richard Bright
13200 W. 58th Ave.
Arvada, CO 80002
725 CHAMBERS AVE,
P.O. BOX 179
EAGLE, COLORADO 81631
FAX (303) 328-7207
RE: Issuance of Individual Sewage Disposal System Permit No.
Enclosed is your ISDS Permit No. 1028 . The enclosed copy
of the permit must be posted at the installation site. You
must call our office for final inspection before covering any
portion of the installed system; the deadline for final
inspections is December 1.
If you have any questions, please feel free to contact us at
the following numbers for your calling area: Basalt/El Jebel
927-3823 ext. 730; Eagle Valley 328-8730.
Sincerely,
Roger Hosea
Asst. Environmental Health Officer
Community Development
cc: ISDS file
encl.
RH/alm
1028
Page 1 of 1
Janet Kohl
From: Dan Stanek
Sent: Thursday, October 07, 2004 9:16 AM
To: Janet Kohl
Subject: RE: BP-16194 Gerard remodel
The gerads submitted plans showing 4 bedrooms total
Thanks dan
From: Janet Kohl
Sent: Wednesday, October 06, 2004 8:52 AM
To: Dan Stanek
Subject: BP-16194 Gerard remodel
Hi Dan,
Ray talked to Anna Gerard yesterday and she indicated that they will be removing a wall between two of
the three bedrooms they had planned for their remodel. The septic system can only accommodate four
bedrooms and the building permit folder says there will be a total of five. If they end up with only four
we can sign off on it, but not until they submit plans to your department indicating the change. Please
let us know when and if that happens, and send us a copy of the documentation so we can add it to the
ISDS Folder. Thanks!
Janet Kohl
Administrative Technician IV
Eagle County Environmental Health
P.O. Box 179
Eagle, CO 81631
(970) 328-8763, (970) 328-8788 FAX
10/7/2004
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Environmental Health
Department
P.O. Box 179
500 Broadway
Eagle, CO 81631-0179
Phone: (970) 328-8730
Fax: (970) 328-7185
Permit
Permit No. OWTS-027481-2023
Permit Type: OWTS Permit
Work Classification: Major Repair
Permit Status: Approved
Issue Date: 8/8/2023 Expires: N/A
On-Site Wastewater
Treatement System
Project Address Parcel Number
3434 GYPSUM CREEK RD, GYPSUM AREA,211120303001
Owner Information Address
Jesus Ponce 3434 GYPSUM CREEK RD
GYPSUM AREA, CO
Phone: (970) 524-1414
Cell: (970) 390-2414
Email: dirttaxi@earthlink.net
Inspections:
For Inspections Call: (970)
328-8755
Engineer Phone Email
KUMAR & ASSOCIATES, Dave Young (970) 945-7988 dyoung@kumarusa.com
Contractor License Number Phone Email
Stone Corp hans@stonecorp.com(970) 376-0385OWTSPL-000286-20
23
Permitted Construction / Details:
Install the system exactly as depicted in the revised Kumar and Associates design dated August 3, 2023, stamped
and signed on August 8, 2023 by David A. Young, PE. This system is designed to accommodate the maximum daily
flows for a 5 bedroom residence and is replacing the system installed under permit 1028-90IS. The existing tank will
be removed or abandoned per ECPHA OWTS regs. Contact ECPHA and Design Engineer if previous STA is
encountered during installation.
The OWTS consists of one sewer line from the residence to a 2000 gallon, two-compartment, Valley Precast septic
tank with an effluent filter in the outlet tee. Tank risers will be installed to, or above, grade and all connections to
tank must be sealed to be water tight. Effluent will gravity flow from the tank to the Valley Precast 8 hole, concrete
distribution box. Schedule 40 PVC pipe must be used under the driveway surface. Effluent lines from the
distribution box shall be equipped with flow equalizers to ensure equal distribution in the STA. The STA will consist
of four trenches with 18 Infiltrator Quick 4 Plus Standard chambers placed in each trench for 72 chambers total.
Inspection ports should be present at the end of each trench.
Maintain any setback to water supply line as stated in ECPHA OWTS Regs, Table 7-1.
Contact Eagle County Environmental Health and the design engineer well in advance of requesting inspections prior
to backfilling any component of the OWTS. The design engineer is responsible for conducting all inspections
necessary to certify the installation and assure the functionality of the system. System certification, along with
photos and a record drawing is required to be submitted to and approved by Eagle County Environmental Health
prior to the use of the system or occupancy of the dwelling.
THIS PERIMT EXPIRES BY TIME LIMITATION AND BECOMES NULL AND VOID IF THE WORK AUTHORIZED BY THE PERMIT IS NOT COMMENCED WITHIN 120 DAYS
OF ISSUANCE, OR BEFORE THE EXPIRATION OF AN ASSOCIATED BUILDING PERMIT
Issued by: Environmental Health Department, Eagle County, CO
Kirk Weems
Date
August 08, 2023
CONDITIONS
1.
2.ALL INSTALLATIONS MUST COMPLY WITH ALL REQUIREMENTS OF THE EAGLE COUNTY PUBLIC HEALTH AGENCY ON-SITE WASTEWATER TREATMENT SYSTEM
REGULATIONS ADOPTED PURSUANT TO AUTHORITY GRANTED IN CR.S. 25-10-101, et seq., AS AMENDED
3.THIS PERMIT IS VALID ONLY FOR PERFORMING WORK ON OWTS ASSOCIATED WITH STRUCTURES WHICH HAVE FULLY COMPLIED WITH COUNTY ZONING AND
BUILDING REQUIREMENTS CONNECTION TO, OR USE WITH, ANY DWELLING OR STRUCTURE NOT APPROVED BY THE ZONING AND BUILDING DEPARTMENTS
SHALL AUTOMATICALLY BE A VIOLATION OF A REQUIREMENT OF THE PERMIT AND WILL RESULT IN BOTH LEGAL ACTION AND REVOCATION OF THE PERMIT
4.1.6(A)(1) EAGLE COUNTY PUBLIC HEALTH AGENCY ON-SITE WASTEWATER TREATMENT SYSTEM REGULATIONS REQUIRES ANY PERSON WHO CONSTRUCTS,
ALTERS OR INSTALLS AN ON-SITE WASTEWATER TREATMENT SYSTEM TO BE LICENSED
Tuesday, August 8, 2023 1
5020 County Road 154
Glenwood Springs, CO 81601
phone: (970) 945-7988
fax: (970) 945-8454
email: kaglenwood@kumarusa.com
www.kumarusa.com
Office Locations: Denver (HQ), Parker, Colorado Springs, Fort Collins, Glenwood Springs, and Summit County, Colorado
February 2, 2024
JP Trucking, Inc.
Attn: Jesus Ponce
3434 Gypsum Creek Road
Gypsum, Colorado 81637
dirttaxi@earthlink.net
Project No. 23-7-102
Permit No. OWTS-027481-2023
Subject: Certification of Onsite Wastewater Treatment System, Existing Residence,
3434 Gypsum Creek Road, Eagle County, Colorado
Dear Jesus:
A representative of Kumar & Associates observed the installation of the Onsite Wastewater
Treatment System (OWTS) for the residence at the subject site as required by the Eagle County
Environmental Health Department. Our observations and recommendations are presented in this
report. The services are supplemental to Kumar & Associates agreement for professional
services to JP Trucking, Inc. dated January 3, 2023.
We previously designed the OWTS for the residence as submitted in our report dated June 1,
2023, and revised August 3, 2023, Project No. 23-7-102. The system was designed for five
bedrooms. The OWTS was installed by Stone Corp under Permit No. OWTS-027481-2023.
We performed our as-built evaluation on December 14, 2023. The OWTS components observed
included: sewer line, cleanout, septic tank, and soil treatment area (STA) and the locations of
these components. The installation and locations of the system components were verified as
shown on Figure 1. Pictures of the OWTS components made during the site visit are included
with this report. The distance locations to the septic tank shown on Figure 1 were made by
taping.
The previous OWTS had failed. The previous tank was removed and the STA was abandoned in
place. The effluent line was not observed at the time of the site visit. Attached is “OWTS SITE
DOCUMENTATION PACKAGE” provided by the installer with further photo documentation.
It is our opinion that the OWTS was installed in general conformance with the above referenced
design.
The observations and recommendations presented above are based on our site observation and
our experience in the area. We make no warranty either express or implied. Alterations to the
system or improper backfill and site grading could affect the operation and effectiveness of the
OWTS.
Kumar & Associates
OWTS PHOTOGRAPH LOG
EXISTING RESIDENCE
3434 GYPSUM CREEK ROAD
EAGLE COUNTY, COLORADO
Project No. 23-7-102
Photograph 1: Valley Precast
2,000-gallon, 2 chamber septic
tank and cleanout.
Photograph 2: Septic tank and
cleanout.
OWTS PHOTOGRAPH LOG
EXISTING RESIDENCE
3434 GYPSUM CREEK ROAD
EAGLE COUNTY, COLORADO
Project No. 23-7-102
Photograph 3: Tuf-tite 7-hole
distribution box and soil
treatment area (STA).
Photograph 4: Soil treatment
area (STA) observation ports yet
to be installed.
1
OWTS SITE DOCUMENTATION PACKAGE
PROJECT NAME: 3434 GYPSUM CREEK RD.
PLAN DATE: OWTS DESIGN 6/1/2023
INSPECTION DATE: 12/14/2023
INSPECTOR: KIRK WEEMS
PO BOX 4159 I GYPSUM, CO 81637
INFO@STONECORP.COM
2
TABLE OF CONTENTS
3434 GYPSUM CREEK RD. OWTS SYSTEM
OWTS SITE PLAN WITH PHOTO LABELS .......................................................................................................... 3
PIPE SLOPE VERIFICATION LOCATION LABELS ........................................................................................... 4
LOCATION 1 .............................................................................................................................................................. 5
LOCATION 2 .............................................................................................................................................................. 6
LOCATION 3 .............................................................................................................................................................. 7
LOCATION 4 .............................................................................................................................................................. 8
LOCATION 5 .............................................................................................................................................................. 9
LOCATION 6 ............................................................................................................................................................ 10
LOCATION 7 ............................................................................................................................................................ 11
LOCATION 8 ............................................................................................................................................................ 12
TANK INLET DROP ................................................................................................................................................ 13
DISTRIBUTION BOX & FUTURE CONNECTIONS ......................................................................................... 14
SPLASH PAD INSIDE INFILTRATORS ............................................................................................................. 15
SCH 40 DRIVEWAY SUPPLY PIPE ..................................................................................................................... 16
DRIVEWAY CROSSING WITH FOAM INSULATION ....................................................................................... 18
INFILTRATOR CLEANOUTS RUBBERNECKED ............................................................................................... 19
DRIVEWAY CROSSING TO TANK OUTLET PIPE INSTALLATION ............................................................. 20
DISTRIBUTION BOX & RISERS ........................................................................................................................ 22
10'
TBACK TO OPERT LINES
--20 0 20
SCALE-FEET
40
23-7-102 Kumar & Associates
PROPOSED VALLEY PRECAST 8-HOLEDISTRIBUTION BOX
SCH 40 PIPE REQUIRED BELOW DRIVEWAY
PROPOSED SOIL TREATMENT AREA
(STA) CONSISTING OF 4 ROWS OF 18 INFILTRATOR QUICK4 PLUS STANDARD CHAMBERS.
(72 CHAMBERS TOTAL)
OWTS SITE PLAN Fig. 1
3
4
LOCATION 3
LOCATION 2
LOCATION 6
LOCATION 7
SLOPE LOCATIONS ON PIPE
LOCATION 8
LOCATION 5
LOCATION 1
LOCATION 4
5
LOCATION 1
6
LOCATION 2
7
LOCATION 3
8
LOCATION 4
9
LOCATION 5
10
LOCATION 6
11
LOCATION 7
12
LOCATION 8
13
TANK INLET DROP
14
FUTURE CONNECTIONS FOR DISTRIBUTION BOX
15
SPLASH PAD
16
SCH 40 DRIVEWAY SUPPLY PIPE
17
18
DRIVEWAY CROSSING FOAM INSULLATION
19
INFILTRATOR CLEANOUTS RUBBERNECKED
20
DRIVEWAY CROSSING TO TANK OUTLET PIPE INSTALLATION
21
22
DISTRIBUTION BOX & RISERS
23
5020 County Road 154
Glenwood Springs, CO 81601
phone: (970) 945-7988
fax: (970) 945-8454
email: kaglenwood@kumarusa.com
www.kumarusa.com Office Locations: Denver (HQ), Parker, Colorado Springs, Fort Collins, Glenwood Springs, and Summit County, Colorado
ONSITE WASTEWATER TREATMENT SYSTEM DESIGN
EXISTING RESIDENCE
3434 GYPSUM CREEK ROAD
EAGLE COUNTY, COLORADO
PROJECT NO. 23-7-102
JUNE 01, 2023
REVISED AUGUST 3, 2023
PREPARED FOR:
JP TRUCKING INC.
ATTN: JESUS PONCE
3434 GYPSUM CREEK ROAD
GYPSUM, COLORADO 81637
(dirttaxi@earthlink.net)
Kumar & Associates, Inc. Project No. 23-7-102
TABLE OF CONTENTS
INTRODUCTION ...................................................................................................................... - 1 -
PROPOSED CONSTRUCTION ................................................................................................ - 1 -
SITE CONDITIONS ................................................................................................................... - 1 -
SUBSURFACE CONDITIONS ................................................................................................. - 1 -
DISCUSSION ............................................................................................................................. - 2 -
OWTS ANALYSIS .................................................................................................................... - 3 -
DESIGN RECOMMENDATIONS ............................................................................................ - 3 -
SOIL TREATMENT AREA................................................................................................... - 3 -
OWTS COMPONENTS ......................................................................................................... - 4 -
OWTS OPERATION AND MAINTENANCE.......................................................................... - 7 -
OWTS HOUSEHOLD OPERATION .................................................................................... - 7 -
OWTS MAINTENANCE ....................................................................................................... - 8 -
OWTS CONSTRUCTION OBSERVATION ............................................................................ - 8 -
LIMITATIONS ........................................................................................................................... - 8 -
FIGURES
FIGURE 1 – OWTS SITE PLAN
FIGURE 2 – USDA GRADATION TEST RESULTS
FIGURE 3 – SOIL TREATMENT AREA CALCULATIONS
FIGURE 4 – SOIL TREATMENT AREA PLAN VIEW
FIGURE 5 – SOIL TREATMENT AREA CROSS SECTION
ATTACHMENTS
VALLEY PRECAST 2,000 GALLON, TWO-CHAMBER SEPTIC TANK DETAIL
VALLEY PRECAST 8-HOLE DISTRIBUTION BOX
Kumar & Associates, Inc. Project No. 23-7-102
INTRODUCTION
This report provides the results of an onsite wastewater treatment system (OWTS) design for the
existing residence located at 3434 Gypsum Creek Road, South of Gypsum, Eagle County,
Colorado. The subject site is shown on Figure 1. The purpose of the report is to provide design
details for the OWTS in accordance with the 2018 Eagle County Environmental Health
Department Onsite Wastewater Treatment System Regulations and the Colorado Department of
Public Health and Environmental Regulation #43. The design revision was performed to address
concerns about the existing septic system. The services were performed in accordance with our
agreement for professional services to JP Trucking Inc. dated January 3, 2023.
EXISTING CONSTRUCTION
The existing residence has an OWTS that needs to be replaced due to hydraulic failure and
surfacing of effluent. The existing residence is a four-bedroom, two-story structure located on
the lot as shown on Figure 1. For possible future expansion, the OWTS will be designed for five
bedrooms. The proposed soil treatment area (STA) for the OWTS will be located to the
northwest of the residence as shown on Figure 1. Water service is provided by a public source
from Gypsum Creek Road to the west of the residence. The approximate location of the STA for
the existing OWTS is shown on Figure 1.
If existing construction is different than that described, we should be contacted to re-evaluate our
design recommendations.
SITE CONDITIONS
The site is occupied by a single-family residence located on the lot as shown on Figure 1 and
other various outbuildings. The terrain is gently sloping down to the northwest. Vegetation
consists of sagebrush, grass, and weeds.
SUBSURFACE CONDITIONS
The field exploration for the OWTS was conducted on January 6, 2023. Two profile pits (Profile
Pits 1 and 2) were excavated with a backhoe at the approximate locations shown on Figure 1 to
evaluate the subsurface conditions at the planned soil treatment area for the OWTS. The pits
were logged by a representative of Kumar & Associates. Logs of the profile pits are provided
below.
- 2 -
Kumar & Associates, Inc. Project No. 23-7-102
Log of Profile Pit 1
Depth USDA Classification
0’-8’ SANDY LOAM; weak blocky structure, stiff, slightly moist, red.
• Disturbed bulk sample obtained from 5 to 6 feet.
• Bottom of pit @ 8 feet.
• No groundwater or redoximorphic features observed at time of pit excavation.
Log of Profile Pit 2
Depth USDA Classification
0-½’ TOPSOIL; organic Loam, firm, slightly moist, dark brown.
½’-8’ SANDY LOAM; weak blocky structure, stiff, slightly moist, red.
• Bottom of pit @ 8 feet.
• No groundwater or redoximorphic features observed at time of pit excavation.
The soils encountered in the profile pits, below about nil to ½ foot of organic topsoil, consisted
of Sandy Loam down to the pit depths of 8 feet. Hydrometer and gradation analyses were
performed on a disturbed bulk sample of the soils from Profile Pit 1 from 5 to 6 feet depth with
the results provided on Figure 2. The tested sample (minus No.10 size sieve fraction) classifies
as Sandy Loam per the USDA system. No free water was encountered in the pits nor indications
of seasonal high groundwater were observed at the time of the pit excavations.
Based on the subsurface conditions and laboratory testing, the soils at the STA have been
classified as Type 2A per State regulations, which equates to a long-term acceptance rate
(LTAR) of 0.50 gallons per square foot per day.
DISCUSSION
The existing OWTS for the residence appears to be dated to 1990 for a previous residence and is
undersized based on current regulations. The current residence was constructed in 1999,
apparently without updating the OWTS. Due to the age of the system, all components (sewer
line, septic tank and STA) should be replaced. The existing septic tank should be removed or
abandoned per County regulations, and all existing sewer and effluent lines should also be
abandoned with the lines removed or capped at each end.
The existing system appears to have failed due to hydraulic failure as noted in the Notice of
Violation Letter from Eagle County dated April 18, 2022. Signs of the existing STA location
were not evident at the time of our field exploration. Based upon County records, the existing
STA appears to be parallel and east of the proposed STA. Construction of the new STA should
start in the northeast corner of the proposed STA, the most likely area of overlap. If the existing
STA is encountered during the excavation for the new field, the old chambers should be
removed. The trench can be reused with any organics deposited by the previous system removed
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Kumar & Associates, Inc. Project No. 23-7-102
and the upper six inches of the trench then scarified. If the bottom of the refurbished trench is
greater than four feet in depth, sand should be imported and the trench backfilled to less than
four feet in depth. We should review the need for any subexcavation for the new STA at the
time of installation.
OWTS ANALYSIS
Based on the site conditions and profile pit evaluations, the evaluated area should be suitable for
a conventional infiltration disposal system. There is adequate elevation difference from the
residence down to the STA for gravity flow of the sewer effluent. The STA will consist of
chambers in a trench configuration based in the Sandy Loam soils. The STA will be sized for
five bedrooms (eight persons) and an average daily flow of 75 gallons per person, and an LTAR
of 0.50 gallons per square foot per day for the natural Sandy Loam soils.
The effluent will gravity flow from the residence to the septic tank for primary treatment and
then gravity flow to the STA for dispersal and final treatment. The STA will consist of four
trenches with Infiltrator Quick 4 Plus Standard chambers. Equal distribution will be provided
to the chambers and trenches by a distribution box.
Based on our site observations, the proposed OWTS appears to be outside of any required
setbacks. If the water supply line is discovered to be within any setbacks we should be notified
for additional recommendations. The required setback of the water line from the septic tank is
10 feet, 5 feet for sewer and effluent lines, and 25 feet from the STA. We should be notified for
additional recommendations if any part of the OWTS is within these minimum setbacks.
DESIGN RECOMMENDATIONS
The design recommendations presented below are based on the proposed construction, the site
and subsurface conditions encountered and our experience in the area. A layout of the proposed
OWTS components is provided on Figure 1. If conditions encountered during construction are
different than those that are described in this report, we should be contacted to re-evaluate our
design recommendations.
SOIL TREATMENT AREA
• The STA will consist of four trenches with 18 Infiltrator Quick 4 Plus Standard chambers
placed in each trench (72 chambers total) in the native soils. Equal distribution will be
provided to the trenches by a distribution box.
• The STA was sized based on an LTAR of 0.50 gallons per square feet per day.
• Each chamber was allowed 12 square feet of area. A 30% reduction of the STA size was
applied for use of Infiltrator chambers in a trench configuration. The total STA design
size is 864 square feet. Soil treatment area calculations are shown on Figure 3.
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Kumar & Associates, Inc. Project No. 23-7-102
• A minimum of four feet of undisturbed soil between the trenches is required.
• The trench cut depths should be a maximum of 3 feet.
• The trenches should be oriented along ground contours to minimize soil cut and cover.
• The base and sidewalls of the trench excavations should be scarified prior to the chamber
placement.
• A minimum of 12 inches and a maximum of 24 inches of cover soil should be placed
over the chambers.
• Backfill should be graded to deflect surface water away from the STA and should be
sloped at 3 horizontal to 1 vertical or flatter. A swale to divert surface water flow away
from the STA may be needed along the upslope side.
• Disturbed soil should be re-vegetated as soon as possible with a native grass mix. No
trees, shrubs or other plants with deep roots should be planted on or near the STA as this
may damage the system piping.
• Four-inch diameter inspection ports should be installed vertically into the knockouts
provided in the chamber end caps. Install ports at each end of the trench. The inspection
port piping should be screwed into the top to the chambers and should not extend down to
the ground surface inside the chambers. The inspection ports should extend at least
8 inches above the finished ground surface or be protected in a valve box at finished
grade.
• The STA must be a minimum of 5 feet from the septic tank.
• The STA must be a minimum of 25 feet from any potable water supply lines.
• The STA must be a minimum of 20 feet from the residence.
• The STA must be a minimum of 10 feet from any property line.
• The STA must be a minimum of 100 feet from any well or cistern.
• A plan view of the STA is presented on Figure 4 and a cross section of the STA is
presented on Figure 5.
OWTS COMPONENTS
Recommended OWTS components provided below are based on our design details and our
experience with the specific component manufacturers. Equivalent components may be feasible
but need to be approved by us prior to construction.
Septic Tank
• A Valley Precast 2,000 gallon, two-chamber septic tank should be used for primary
treatment to allow for future expansion of the OWTS. A detail of the tank is provided as
an attachment.
• The existing septic tank should be abandoned or removed per Eagle County regulations.
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Kumar & Associates, Inc. Project No. 23-7-102
• An effluent filter should be installed in the tank outlet tee.
• The tank must be a minimum of 5 feet from the residence and STA.
• The tank must be a minimum of 10 feet from any potable water supply lines.
• The tank must be a minimum of 50 feet from any well or cistern.
• The tank must be set level. The excavation bottom must be free of large rocks or other
objects that could damage the tank during placement. A road base or pea gravel bedding
material may be needed to prevent tank damage during placement and act as a leveling
course.
• The tank lids must extend to final surface grade and made to be easily located.
• Install the tank with 2 feet minimum cover soil for frost protection. Maximum tank soil
cover is 3 feet.
Sewer Pipe
• The existing sewer line should be abandoned by capping the ends or be removed.
• The new sewer line to the septic tank should not be less than the diameter of the building
drains and not less than 4 inches in diameter.
• The sewer pipe should have a rating of SDR35 or stronger. Schedule 40 PVC pipe is
required beneath any driveway surfaces.
• The sewer pipe should be sloped between 2% to 4% to help limit disturbance of solids in
the tank and potential sewage bypass of the first chamber of the tank. If a steeper slope is
needed, this can be accomplished with vertical step-downs in the sewer line.
• A minimum 24 inches of cover soil should be provided over the sewer pipe. Paved areas,
patios or other areas without vegetative cover may be more susceptible to frost and we
recommend 48 inches of soil cover over the sewer pipe in these areas, and the pipe be
insulated on top and sides with 2-inch-thick blue foam insulation board. If adequate soil
cover is not possible, we should be contacted for re-evaluation prior to installation.
• The sewer pipe should be bedded in compacted ¾-inch road base or native soils provided
that the native soils contain no angular rocks or rocks larger than 2½ inches in diameter
to help prevent settlement of the pipe. Sags in the pipe could cause standing effluent to
freeze and damage the piping.
• Install cleanout pipes within 5 feet of the building foundation, where the sewer pipe
bends 90 degrees or more and every 100 feet of sewer pipe.
• All 90-degree bends should be installed using a 90-degree long-sweep or by using two
45-degree elbows.
• The sewer line location shown on Figure 1 is considered conceptual. We assume that
there will be only one sewer line exiting the residence. It is the responsibility of the
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Kumar & Associates, Inc. Project No. 23-7-102
owner/contractors to locate all sewer line exit locations and connections to the septic
tank. We should be notified if there are other sewer lines exiting the building.
Effluent Transport Piping
• The existing effluent line should be abandoned by capping the ends or removed.
• The effluent transport pipe should be 4-inch diameter SDR35 piping sloped at a 2%
minimum to flow from the septic tank to the distribution box and from the distribution
box to each trench. Piping should extend at least 6 inches into the top knockout provided
in the Infiltrator end caps and be screwed in place. Splash plates should be installed
beneath the inlet piping to help limit scouring of the infiltrative soil surface in the
chambers.
• The effluent transport pipe should be bedded in compacted ¾-inch road base or native
soils provided that the native soils contain no angular rocks or rocks larger than
2½ inches in diameter to help prevent settlement of the pipe. Sags could cause standing
effluent to freeze and damage to the piping.
• A minimum 18 inches of cover soil should be provided over the effluent transport pipe.
Paved areas, patios or other areas without vegetative cover may be more susceptible to
frost. We recommend 48 inches of soil cover over the effluent pipe and insulation with at
least 2 inches of rigid foam insulation in these areas. If adequate cover soil is not
possible, we should re-evaluate the condition prior to installation.
• Schedule 40 PVC pipe is required underneath driveway surfaces and should be provided
with at least 48 inches of soil cover and be insulated on top and sides with 2-inch-thick
rigid foam insulation board.
• All 90-degree bends should be installed using a 90 degree long-sweep or by using two
45-degree elbows.
Distribution Box
• The distribution box will be used to equally divide effluent flow between the trenches.
We recommend the Valley Precast 8-Hole Distribution Box since it is easily accessible
from ground surface for maintenance. A copy of the distribution box detail is provided as
an attachment to this report.
• The distribution box outlet pipes should be equipped with flow equalizers for ease of
initial setup and adjustment over time.
• The distribution box must be accessible from ground surface for inspection and
maintenance per the State guidelines.
• The effluent line from the septic tank should be directed downward into the distribution
box with a 90-degree elbow inside the box.
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Kumar & Associates, Inc. Project No. 23-7-102
• The distribution box must be installed level on a compacted road base subgrade to ensure
equal effluent distribution. If settlement of the distribution box occurs, unequal effluent
distribution may take place which could cause hydraulic overload of one of the trenches
and potential failure. The distribution box should be monitored periodically, and the
speed levelers should be adjusted as necessary for levelling.
• The ground surface above and around the distribution box should be graded to drain away
surface water to prevent standing water near the distribution box which could freeze or
cause settlement.
OWTS OPERATION AND MAINTENANCE
The OWTS will require periodic inspection and maintenance to function properly. A properly
designed, installed and maintained system can greatly increase its lifespan. The level of
maintenance will vary depending on the complexity of the system and water use habits of the
residents. We recommend that an OWTS Operation and Maintenance (O&M) Manual be
developed. Depending on the complexity of the system, a contract with an OWTS maintenance
provider may be prudent. Below are some basic recommendations for the OWTS O&M.
OWTS HOUSEHOLD OPERATION
• Use of high efficiency water fixtures is recommended to decrease the hydraulic load on
the OWTS system.
• Fix plumbing leaks immediately as this may cause a hydraulic overload of the soil
absorption system.
• Do not irrigate the area on top of or directly upgradient of the soil absorption field as this
may cause a hydraulic overload.
• Do not dispose of household waste down drains as this may clog or damage OWTS
components. Examples of household waste includes: dental floss, cotton swabs, coffee
grounds, paper towels, feminine products and many other kitchen and bath items.
• Use of kitchen garbage disposals is not recommended. If a garbage disposal is utilized,
kitchen wastewater should be screened thoroughly. Many kitchen solids are not
decomposed in the septic tank and may cause increased tank pumping frequency.
• Do not dispose of household chemicals, greases, oils, paints, hot tub water or water
softener backwash in household drains. A separate drywell, if feasible, may be necessary
for hot tub water or water softener backwash disposal.
• Limit the use of bleach as this may harm useful bacteria in the septic tank and soil
treatment area.
• Liquid dishwasher and clothes washer detergent is recommended for households served
by an OWTS. Clay substances used as fillers in powder detergents may result in
clogging of the soils absorption system.
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Kumar & Associates, Inc. Project No. 23-7-102
• The effluent in septic tanks can freeze during extended periods of non-use in cold
weather. We recommend that a tank heater be installed in this system to help prevent
freezing.
OWTS MAINTENANCE
• Inspect the septic tank, distribution box and STA at least annually for problems or signs
of failure.
• The effluent filter for the tank should be cleaned at least annually by spray washing solids
into the first chamber of the septic tank.
• The septic tank should be pumped and cleaned every 3 to 5 years depending on use.
Longer pumping intervals may increase the amount of solids that reach the STA, which
may shorten its life span.
• Pumping of the septic tank should take place when the level of the sludge and scum
layers combined take up 25 to 33% of the capacity of the first chamber of the tank.
OWTS CONSTRUCTION OBSERVATION
The Eagle County Environmental Health Department requires that the designer of the system
provide a record drawing and certification of the OWTS construction (As-Built inspection).
We should be provided with at least 48-hour notice prior to the installer needing the inspections.
Prior to issuance of our certification letter, we require observation of all system components
prior to backfill. The number of site visits required for the inspection will depend on the
installer’s construction schedule.
LIMITATIONS
We have conducted this design in accordance with generally accepted engineering principles and
practices in this area at this time. We make no warranty either expressed or implied. The
recommendations provided in this report are based on the site conditions, profile pit evaluations
and soil texture analysis, the proposed construction and our experience in the area. Variations in
the subsurface conditions may not become evident until excavation is performed. If conditions
encountered during construction appear different from those described in this report, we should
be notified so that re-evaluation of the recommendations may be made.
This report has been prepared for the exclusive use by our client for design purposes. We are not
responsible for technical interpretations by others of our information. As the project evolves, we
should provide continued consultation and field services during construction to review and
monitor the implementation of our recommendations, and to verify that the recommendations
have been appropriately interpreted. Significant design changes may require additional analysis
or modifications to our design.
Kumar & Associates
SILT
COBBLES
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Kumar & Associates
Kumar & Associates
Kumar & Associates
Notes:
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Infiltrator Quick 4 Plus
Standard Chamber
Installed Level
Scarify ground surface prior
to chamber placement.
Excavate 36"
Wide Trench
Approx. Existing Ground Surf
a
c
e
12" min. 24" max.
Cover Soil Graded
to Deflect Surface
Water
Native Soil
4' Min.
Undisturbed
Soil
Between
Trenches
Kumar & Associates
Notes
1.Chambers should be installed level on a scarified ground surface. Concrete
sand may be used as a leveling course if necessary.
2.Care should be taken by the contractor to avoid compaction of the native soils in
the trench areas. The base and side walls of trench excavations should be
scarified prior to chamber installation.
3.Changes to this design should not be made without consultation and approval
by Kumar & Associates.
Inspection Result
Eagle County, Colorado
P.O. Box 179 500 Broadway Eagle, CO
Phone: (970) 328-8730 Fax: (970) 328-7185
IVR Phone: 1-866-701-3307
Inspection Number: INSP-527924-2023 Permit Number: OWTS-027481-2023
Inspection Date: 12/11/2023
Inspector: Weems, Kirk
Permit Type: OWTS Permit
Inspection Type: OWTS Final Inspection
Work Classification: Major RepairOwner:J P Trucking Inc
Job Address:3434 GYPSUM CREEK RD IVR Pin Number:199563
GYPSUM AREA, CO Project:<NONE>
Parcel Number:211120303001
Contractor:Phone: (970) 376-0385 / Cell: (970) 376-0385Stone Corp
Inspection Status: Approved
Inspection Notes
Inspector Comments
Added Item: Septic Tank
12/14/2023 - confirm 2000gal valley precast 2 compart tank, set level on gravel bed. During Prebackfill
inspection, unable to confirm effluent filter, inlet/outlet tee. K&A should provide documentation in
engineer final. 02/05/2024 - Confirmed in PE Final
Added Item: Record Drawing
Added Item: Record Photos
Added Item: Site and Soil
12/08/2023 - In PE approved plan packet
Added Item: Final Certification Letter
Added Item: General Plan
08/08/2023 - Approved design. 12/14/2023 - Observed d-box with speed levels installed on north side
of driveway. Waiting final run of effluent line in Sched. 40, under the driveway surface. Installer
confirmed Sched 40 PVC and foam board would be used under driveway surface. 02/05/24 -
Confirmed via PE Final Cert
Added Item: Soil Treatment Area (STA)
12/08/2023 - 4 rows of 18 ea Infiltrators. Need to confirm 24" depth of cover from infiltrative surface
after backfill. 02/05/24 - Confirmed from final docs.
Monday, February 5, 2024
For more information visit: http://www.eaglecounty.us
Page 1 of 2
Added Item: Identification of Systems Contractor
12/08/2023 - Hans Von/Stonecorp is licensed installer
Monday, February 5, 2024
For more information visit: http://www.eaglecounty.us
Page 2 of 2