HomeMy WebLinkAboutOWTS Installation Observations 02.17.19
February 17, 2019 Project No. C1297
Ryan Pratt
Rpratt2311@gmail.com
Onsite Wastewater Treatment System (OWTS) Installation Observations
Lot A, Panorama Reserve
Garfield County, Colorado
Permit Number SEPT-06-17-4764
Ryan,
ALL SERVICE septic, LLC observed the installation of the onsite wastewater treatment system (OW TS)
on December 12 and 29, 2018 for the subject property. Advanced Underground installed the system.
The configuration of the soil treatment area (STA) was modified from our original design due to large
rocks on the area of the proposed STA. We met with the owner and installer and approved the
alternative design prior to installation.
Design Calculations (STA):
75 GPD x 2 people/bedroom x 3 bedrooms + 150 GPD (4th and 5th bedrooms) = 600 GPD
600 GPD / 0.5 gal/SF = 1200 SF
1200 SF x 1.2 (gravity, bed) x 0.7 (chamber) = 1008 SF
The installation included a new 1500-gallon, two-compartment Norwesco® poly septic tank with an
Orenco® Biotube Effluent Filter on the outlet tee. This filter must be cleaned annually, or as needed.
Effluent gravity flows from the septic tank to a distribution box, which was accessible from grade. Flow
equalizers were installed on each pipe exiting the distribution box to equalize flow to each trench.
The STA consists two beds, each with 3 rows of 12 ‘ARC 36’ chambers, for a total area of 1080 square
feet of infiltrative area. Each row was individually plumbed from the distribution box. There was at least
6-feet of undisturbed soil between the beds. Inspection ports must be installed at both the beginning and
end of each trench. These ports may be cut to grade and covered with a sprinkler box for access.
The OW TS 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.
Clean out sewer line to septic tank
View of septic tank / inlet outlet with effluent filter
View of outlet toward STA
Distribution box each row in bed piped individually
View of distribution box piping into top of end cap (ARC 36 chamber)
View of beds, benched into hillside
PERMIT
KEEP AVAILABLE AT PROJECT SITE
Project Address ____________________________________________ Parcel No. ________________________
Subdivision _________________________________ Lot _______ Section-Township-Range ____________
Owner Name ______________________________________________ Owner Phone _____________________
Owner Mailing Address _______________________________________________________________________
Contractor(s) ______________________________________________ Contractor Phone _________________
Work Description:
Valuation _________________________________
Square Feet _______________________________
IMPORTANT: APPLICATION IS HEREBY MADE TO THE BUILDING OFFICIAL FOR A PERMIT SUBJECT TO THE CONDITIONS AND
RESTRICTIONS SET FORTH ON THIS APPLICATION. PLEASE NOTE: Final inspection of the work authorized by this permit is required. A
Certificate of Occupancy must be obtained prior to use and occupancy of new buildings and structures. A Building Permit becomes null and
void if the authorized work is not commenced within 180 days of the date of issuance and if work is suspended or abandoned for a period of
180 days after commencement.
Permit Type ____________________________________
Work Classification _____________________________
Issue Date ___________ Expiration Date ___________
PERMIT #
Community Development Department 108 8th Street, Suite 401 Glenwood Springs, CO 81601
Phone (970) 945-8212
1/24/2018
17-07-87
Septic - New
970-319-6439
OWNER
Panorama Reserve
PO Box 1627, Carbondale, CO 81623
new OWTS installation for single family residence
A
SEPT-06-17-4764
239117402001
New
7/28/2017
Ryan Pratt
TBD Panorama Dr.
832‐R‐13‐002