HomeMy WebLinkAboutOWTS Installation Observations 01.02.2015
January 2, 2015 Project No. C1094
Nicole Holowaty
ECOS Environmental & Disaster Restoration Inc.
nholowaty@ecosenvironmental.com
Onsite Wastewater Treatment System (OWTS) Installation Observations
Commercial Office Building
6690 Hwy 82
Garfield County, Colorado
Garfield County Permit No. SEPT-10-14-3412
Nicole,
ALL SERVICE septic, LLC observed the installation of the onsite wastewater treatment system (OWTS)
on November 7, 2014 for the subject property. Underhill Excavating installed the system.
The plumbing in the commercial warehouse building includes two toilets, two lavatories, one shower, a
kitchen sink, a dishwasher, and a washing machine for use by eight, 8-hour office shift employees and
two field employees. We highly recommended installation of a flow meter to monitor actual flows
into the OWTS. No floor drains are discharged into the OWTS. The OWTS is designed to
accommodate domestic wastewater only, using an estimated design flow of 270 gallons per day.
The installation included a new 1000-gallon, two-compartment concrete septic tank with an H-20 rated lid
for installation under the existing driveway and an effluent filter on the outlet tee, followed by an additional
500-gallon dosing chamber with an H-20 rated lid and an Orenco® 300 series dosing siphon. The
effluent filter in the first septic tank and screen around the dosing siphon should be cleaned
annually, or as needed.
The soil treatment area (STA) consists of an 8’ x 41’ area with twelve-inches of concrete sand (ASTM 33)
and three rows of 10 Eljen® A42 Modules connected with a level manifold. A geotextile fabric covers the
sand and modules.
The plumbing into septic tanks and placement of the chambers was not entirely com plete at the time of
the observations. Additional photographs were provided by the installer after placement of the modules.
The OWTS was generally installed according to specifications. This observation is not a guarantee of
workmanship and/or parts and materials. ALL SERVICE septic, LLC should be notified if changes are
made to the OW TS in the future. Any additional OWTS construction must be according to the county
regulations.
LIMITS:
Observations are limited to components that are visible at the time of the inspection. The installer must
have documented and demonstrated knowledge of the requirements and regulations of the county in
which they are working. The quality of the installation is dependent of the expertise of the installer, soil
type, and weather conditions.
Please call with questions.
Sincerely,
ALL SERVICE septic, LLC Reviewed By:
Carla Ostberg, MPH, REHS Richard H. Petz, P.E.
November 7, 2014
Sewer line exiting building
1000-gallon Valley Precast septic tank
Clean out
500-gallon dosing chamber View of tank and dosing chamber
Modules and piping prior to installation
Modules being placed on sand
Additional photographs provided by installer
832‐R‐13‐002