HomeMy WebLinkAboutOWTS Installation Observations 02.13.18
February 13, 2018 Project No. C1342
John Bruegger
johnb@sopris.net
Onsite Wastewater Treatment System (OWTS) Installation Observations
6588 Hwy 82
Garfield County, Colorado
Permit Number SEPT-12-17-5061
John,
ALL SERVICE septic, LLC observed the installation of the onsite wastewater treatment system (OW TS)
on January 11, 2018 for the subject property. Sierra Excavation installed the system.
The existing septic tanks were removed. The existing sewer line exiting the residence was connected to
a new 1500-gallon, two-compartment Forterra concrete septic tank. We instructed the installer to add an
effluent filter on the outlet tee. This filter must be cleaned annually, or as needed. The installer opted
to install a cleanout in the inside of the septic tank on the inlet tee. While this was not specified in our
design, we have no objection to this installation.
Effluent gravity flows to a distribution box, and then to two gravelless chamber beds, one on the upper
bench and one on the lower bench. We instructed the installer to assure the distribution box was
accessible from grade and to install flow equalizers, or similar product, on each outlet pipe in the
distribution box to assure equal flow to each bed.
The bed on the upper bench consists of 4 rows of 7 ‘Quick 4’ Standard Plus Infiltrator® chambers
connected with a level manifold, for a total area of 336 square feet of infiltrative area. The bed on the
lower bench consists of 3 rows of 9 ‘Quick 4’ Standard Plus Infiltrator® chambers connected with a level
manifold, for a total area of 324 square feet of infiltrative area. There will be a total of 55 chambers and
660 square feet of infiltrative area between the two beds. Inspection ports were installed in each corner
of each bed. Ports may be cut to grade and placed in sprinkler boxes for access.
I verified with the installer by phone that all recommendations were completed prior to backfill.
Additionally, chambers were encountered during construction of the lower bench, but no contaminated
soils were found.
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 OWTS 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.
Inlet tee (with clean out – choice of installer) effluent filter not installed at the time of our final inspection
View of septic tank looking toward upper STA View of distribution box
View of upper bed
Installation of new bed below old gravel media
832‐R‐13‐002