HomeMy WebLinkAboutAs-built Report 10.12.20205020 County Road 154
Glenwood Springs, CO 81601
phone: (970) 945-7988
fax: (970) 945-8454
email: kaglenwood@kumarusa.com
An Employee Owned Company www.kumarusa.com
Office Locations: Denver (HQ), Parker, Colorado Springs, Fort Collins, Glenwood Springs, and Summit County, Colorado
October 12, 2020
Mike Ruiz
775 Fir Avenue
Rifle, Colorado 81650
(mike.unicorp@gmail.com)
Project No. 17-7-798.02
Subject: Certification of Onsite Wastewater Treatment System, Proposed Residence, Lot 7,
Native Springs, 19 Native Springs Drive, Garfield County, Colorado
Dear Mike:
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 Garfield
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 you dated October 24, 2017.
We previously designed the OWTS for the residence as submitted in our report dated
September 17, 2020, Project No. 17-7-798.02. The system was designed for three bedrooms.
We performed our evaluation on September 28, 2020. The OWTS components observed
included: sewer line, cleanout, septic tank, effluent line, distribution box 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 designed Tuf-tite 6-hole distribution box was changed to a precast concrete 8-hole
distribution box. The designed Infiltrator Quick4 Plus Standard chambers (75 total chambers)
were changed to Arc36 chambers and the size of the field adjusted to be similar to the design
(60 chambers total). These changes are acceptable to us.
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.
Mike Ruiz
October 12, 2020
Page 2
Please feel free to contact us if you have any questions regarding this letter.
Sincerely,
Kumar & Associates, Inc.
`7K, -;_/1 400,e/Z,
Shane M. Mello, Staff Engineer
Reviewed by:
David A. Young, P.E.
SMM/kac
attachments: Figure 1 -
OWTS Photo
cc: Jim Gornick (jgornick1988(a�gmail.com)
Kumar & Associates, Inc. Project No. 17-7-798.02
PER
SPIT
PROF LE
PIT 1
NORWESCO 1,000 GALLON
TWO CHAMBER LOW
PROFILE SEPTIC TANK
PERC
PIT 3
ROFILE /
C-)1 PIT 2 . CONCRETE 8-HOLE
DISTRIBUTION BOX
SOIL TREATMENT AREA (STA)
CONSISTING OF 5 TRENCHES WITH
12 ARC36 CHAMBERS IN EACH
TRENCH. 60 CHAMBERS TOTAL.
17-7-798.02
Kumar & Associates
E : RI►GS /
3 DROOM
SIDENCE
FF=5394.75'
RECORD DRAWING
Fig. 1
OWTS PHOTOGRAPH LOG
PROPOSED RESIDENCE
LOT 7, NATIVE SPRINGS
19 NATIVE SPRINGS DRIVE
GARFIELD COUNTY, COLORADO
Photograph 1: Cleanout and
sewer line exiting residence.
Photograph 2: Norwesco 1,000
gallon, two -chamber septic tank.
Project No. 17-7-798.02
OWTS PHOTOGRAPH LOG
PROPOSED RESIDENCE
LOT 7, NATIVE SPRINGS
19 NATIVE SPRINGS DRIVE
GARFIELD COUNTY, COLORADO
Photograph 3: Inlet tee in septic
tank.
Photograph 4: Outlet tee and
effluent filter.
Project No. 17-7-798.02
OWTS PHOTOGRAPH LOG
PROPOSED RESIDENCE
LOT 7, NATIVE SPRINGS
19 NATIVE SPRINGS DRIVE
GARFIELD COUNTY, COLORADO
Photograph 5: Effluent line
exiting septic tank to distribution
box and to soil treatment area
(STA).
Photograph 6: 8-hole concrete
distribution box with levelers in
outlet effluent lines.
Project No. 17-7-798.02
OWTS PHOTOGRAPH LOG
PROPOSED RESIDENCE
LOT 7, NATIVE SPRINGS
19 NATIVE SPRINGS DRIVE
GARFIELD COUNTY, COLORADO
Photograph 7: Typical STA
trench, partially backfilled,
consisting of 12 Arc36
chambers.
Photograph 8: Observation
ports and STA.
Project No. 17-7-798.02