HomeMy WebLinkAboutAs-Built Evaluation of OWTS 11.2.17H-PVKUMAR 5020 County Road 154
Glenwood Springs, Colorado 81601
Phone: (970) 945-7988
Fax: (970) 945-8454
Email: hpkglenwood @kumarusa.com
Geotechnical Ëngineering I Engineering Geology
Mater¡ais Testing I ÊnvirÕnmental
Ofñce Locations: Parker, Glenwood Springs, and Silverthorne, Colorado
November 2,2017
Eggers Architecture, Inc.
Attn: Don Eggers
P. O. Box 798
Kremmling, Colorado 80459
don.e ggers @ eggersarchitecture.com
Project No. l7 -7 -263.02
Subject:As-Built Evaluation of Onsite Wastewater Treatment System, Proposed Ranch
House, Big Mountain Ranch, 2147 Ute Stock Drive, north of Rifle, Garfield
County, Colorado
Dear Mr. Eggers:
As requested, we observed the installation of the onsite wastewater treatment system (OWTS)
installation at the at the subject site as required by the Garfield County Environmental Health
Department. Our observations and recommendations for the As-Built evaluation are presented in
this report. The services are supplemental to our agreement for professional services to Eggers
Architecture, Inc. dated March 28, 2Ol7 .
H-PlKumar previously designed the OWTS for the proposed residence submitting our
recommendations in a report dated June 23,2417, Project No. l7-7-263.02. The system was
designed for three bedrooms. The OWTS was installed by Western Colorado Excavating, Inc.
We performed our As-Built evaluation on August 1l, September 22 and November t,2017 . On
August 11, the OWTS components observed included: sewer line, cleanout, septic tank, effluent
pump, effluent transport line, 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.
Photographs of the OWTS installation are provided in the attached Photograph Log. At this
time, some changes to the STA piping needed to be done and when observed on September 22,
adequate corrections to the piping had been made. Power and water were not yet supplied to the
OWTS at the time of our inspections. We returned to the site on November I after power and
water had been supplied to the pump so a pump performance test could be performed.
H-P+KUMAR Project No. l7 -7 -263.02
Don Eggers
November 2,20L7
Page2
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 observations 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.
Please feel free to contact us if you have any questions regarding this letter.
Respectfull
David A. Young,
DAY/kac
Attachments: Figure 1 - As-Built Site Plan
OWTS As-Built Photograph Log
cc:Giard Homes - Roger Giard (roger.giard@giardhomes.com)
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H-P\KUMAR Project No. 17 -7 -263.02
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17-7-263.4 H-PVKUMAR Fig. 'l
OWTS AS.BUILT PHOTOGRAPH LOG
PROPOSED RANCI{ HOUSE RESIDENCE
2147 ATE STOCK DRIVE, GARFIELD COUNTY , coLoRADO
Photograph 1: Sewer line
exiting residence with cleanout
and septic tank.
Photograph 2: Three chamber,
1,500 gallon Valley Precast
septic tank and effluent line.
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Proiecl Na 17-79âa ñt
O\ry'T'S AS.BUTLT PHOTOGRAPH LOG
PROPOST]D RANCH HOUSE RESIDENCE
2T47IJTß, STOCK GARütrLD COUNTY COLORADO
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Photograph 3: Effluent line
running from septic tank to STA.
Photograph 4: Effluent line
running from septic tank to STA.
Proiect No- I 7-7-263.o2
OWTS AS.BUILT PHOTOGR,A.PH LOG
PROPOSED RANCH HOUSE RESIDENCE
2I4T TJTE STOCI( DRIVE, GARFIELD COUNTY, COLORADO
Photograph 5: STA with
aggregate bed, manifolds,
laterals, Orenco orifice shields,
inspection ports and cleanouts.
Photograph 6: STA with
aggregate bed, cleanouts,
manifold, laterals, O¡enco orifice
shields and inspection ports.
Proiect No. 17-7-263-02
OWÎS AS.BUILT PHOTOGRAPH LOG
PROPOSED RANCH HOUSE RESIDENCE
2M7 ATE STOCK GARFIELD COUNTY COLORADO
Photograph 7: STA with
aggregate bed and cover soil.
Proiect No. 17-7-263.02