HomeMy WebLinkAboutFinal Acceptance Letter from PH 06.11.2020195 W. 14th Street
Rifle, CO 81650
(970) 625-5200
Matt and Sarah Cova
109 Oakland Knoll
Glenwood Springs, CO 81601
Garfield County
Subject: Final OWTS Inspection
109 Oakland Knoll
Glenwood Springs, CO 81601
Final Acceptance Letter
OWTS Permit #: SEPT-6275
June 11, 2020
Mr. and Mrs. Cova,
Public Health
Health
2014 Blake Avenue
Glenwood Springs, CO 81601
(970) 945-6614
On May 21 and 22, 2020, we visited the Cova Residence at 109 Oakland Knoll near Glenwood
Springs in Garfield County, Colorado to observe the Onsite Wastewater Treatment System (OWTS)
installation pursuant to OWTS Permit # SEPT-6275. At the time of our May 21 site visit, the contractor
had installed a 500-gallon pump chamber, pump lines, an automatic distributing valve, and effluent lines
and distribution laterals to distribute effluent to five chamber trenches. The pump chamber was installed
level, with access brought to grade. The control panel was mounted to the house within line of sight of the
pump chamber. The design specified using a chamber unit in the trenches with a surface area of 15 ft2.
The contractor had installed chamber units with a surface area of 12 ft2, but had not lengthened the
trenches and added the appropriate number of chambers to compensate for the reduced STA. We
informed the homeowner of this issue, who called his engineer. The engineer recommended adding the
required number of chamber units (4 per trench, or 20 additional chamber units). An electrician was
onsite wiring the pump and control panel during our first site visit. At the time of our May 22 site visit, the
contractor had installed the additional chamber units. The five gravelless chamber trenches consist of 21
chamber units per trench (105 chamber units total). The far end of the trenches was greater than the
maximum 48 inches from the top of the chamber to the top of the trench specified in the plans. We
understand the contractor intended to grade the ground surface above the chambers to maintain a
maximum 48 inch bury depth of the chamber units. In our opinion, this system was installed in general
conformance with Garfield County OWTS Regulations. No further action or review from Garfield County
Environmental Health is required regarding this permit. Please provide an As -Built drawing of the system,
when available, for our files.
Thank yo
dward R. "Ted" White, P.E.
Environmental Health Specialist III
Garfield County Public Health
2014 Blake Avenue
Glenwood Springs, CO 81601
(970) 945-6614 ext. 8106
twhite@garfield-county,com
Garfield County Public Health Department — working to promote health and prevent disease