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Home My WebLink AboutOWTS Installation Observations 01.01.19 January 1, 2019 Project No. C1406 Eric Kaiter ekaiter@comcast.net Onsite Wastewater Treatment System (OWTS) Installation Observations 7484 CR 100 Garfield County, Colorado Permit Number SEPT-09-18-5459 Eric, ALL SERVICE septic, LLC observed the installation of the onsite wastewater treatment system (OW TS) on October 17, October 30, and November 28, 2018 for the subject property. Black Timber Dirt Works, LLC installed the system. A new, 1000-gallon, two-compartment Valley Precast concrete septic tank with an effluent filter on the outlet tee was installed to serve the detached garage. The effluent filter must be cleaned annually, or as needed. A new, 4-inch diameter SDR-35 sewer line was installed from the outlet of this septic tank to a new, 2000-gallon, two-compartment, Valley Precast concrete septic tank with an Orenco® pumping system in the second compartment of the septic tank to serve the main house. There is an effluent filter in the second compartment of the 2000-gallon septic tank which must be cleaned annually, or as needed. A new, 4-inch diameter SDR-35 sewer line with a double sweep clean out and minimum 2% grade was installed from the main house to the new 2000-gallon septic tank. Sewer lines come together with a “wye” fitting. Manhole lids of both septic tanks must be brought to grade for access. Floats for the pumping system were set to dose approximately 80 gallons each pump cycle, allowing approximately 15 gallons of drain back after each pump cycle. The control panel for the pump is located on the west wall of the residence, within line of sight of the septic tank. Valley Precast performed start-up of the pumping system. We tested the pumping system and observed cycling of the ADV at the time of our November 28, 2018 inspection. A 1.5-inch diameter Schedule 40 pump line was installed from the pump to an Orenco® automatic distributing valve (ADV), model 6402. The pump line was encased as it encroached on the 50-foot setback to the well. The ADV was placed a high point in the system and was installed in an insulated riser with access from grade. Effluent is pressure dosed through a 1.5-inch diameter pump lines to two over-excavated, 12’ x 55’ unlined sand filters with a minimum of 2-feet of sand filter material. Pipes used to disperse the effluent were surrounded by washed coarse screened gravel. The manifolds were 1.5-inches in diameter. Laterals were 1.5-inches in diameter with 5/32-inch diameter orifice holes facing down, spaced 4-feet on center. Laterals were separated by 3.0-feet. Each 1.5-inch diameter lateral ends in a sweeping ell facing up with a ball valve for flushing. A soil separation fabric was placed over the gravel layer followed by approximately 1-foot of topsoil. 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. Over-excavation for sand filters Over-excavation 1000-gallon, two-compartment tank for detached garage View of new septic tank serving garage Existing cast iron line from main house replaced Control panel on west wall of main house Sewer line from upper septic tank pump line from main house tank to ADV location Clean out on sewer line – not tracer wire ADV set ADV / pump lines entering encased because of well setback Sample of sand and gravel laterals set on sand filters Putting together laterals orifice shields on laterals Flushing valves and inspection ports at ends of beds / clean out near garage Inlet tee on 1000-gallon tank Effluent filter (requested handle extension) View of septic tank lids (1000 gal tank) view of lids for 2000-gallon septic tank Inlet tee (2000 gal tank) pumping system (2000 gal tank) Adv in riser 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 3/12/2019 18-07-87 Septic - New 303-817-7445 OWNER 1710 13th St Boulder, CO 80302 N/A New septic installation for existing home and ADU SEPT-09-18-5459 239118100025 New 9/13/2018 Erich Kaiter 7484 CR 100 832‐R‐13‐002