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Home My WebLink AboutOWTS Installation Observations 12.27.18 December 27, 2018 Project No. C1233 Jeff Klarner jklarner@earthlink.net Onsite Wastewater Treatment System (OWTS) Installation Observations 6441 CR 117 Garfield County, Colorado Permit Number SEPT-03-17-4619 Jeff, ALL SERVICE septic, LLC observed the installation of the onsite wastewater treatment system (OW TS) on May 5, 2017 and September 21, 2018 for the subject property. Ty Trulove installed the system. A minimum setback of 50-feet was maintained to Four Mile Creek. Drainage on the property is managed by a culvert to the north of the proposed soil treatment area (STA). The system installation included 4-inch diameter sewer lines from both the barn and main house. Double-sweep cleanouts were installed near the structures, in addition to the location where the sewer lines “wye” together. The sewer line exiting the residence is deep because of plumbing in the basement level. The system installation included a 1250-gallon, two-compartment concrete septic tank with an Orenco® Biotube Pump Vault and a PF3005 Orenco® pump in the second compartment of the septic tank. The location was different from the design documents and a decision was made to anchor the tank due to the potential for high seasonal groundwater in the new location. The floats were set to dose approximately 80 gallons each pump cycle. The control panel for the pump is located on the north side of the residence. We tested the pumping system at the time of our September 21, 2018 visit. Effluent is pressure dosed through a 1.5-inch diameter pump line to a mounded, 12’ x 28’ unlined sand filter. The excavation for the sand filter began between native grade and 1-foot below native grade to achieve a level base for the sand filter. The mound consists of a minimum of 2-feet of sand filter material. Pipes used to disperse the effluent were surrounded by washed coarse screened gravel or crushed stone. All of the gravel or stone must pass a 2 ½-inch screen and must be retained on a ¾-inch screen. The manifold was 1.5-inches in diameter. Laterals were 1.5-inches in diameter with 5/32-inch diameter orifice holes facing down, spaced 3-feet on center. Laterals were separated by 3-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 or other suitable soil able to support vegetative growth. The mound had a minimum 3:1 slope (horizontal:vertical). 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. Clean out near residence Laying sand for mounded sand filter View of mounded area, looking toward CR 117 View of septic tank septic tank, located below retaining wall Inspection ports flushing valves Pump panel located on north side of residence wiring diagram Pump Selection for a Pressurized System - Single Family Residence Project Klarner Parameters Discharge Assembly Size Transport Length Transport Pipe Class Transport Line Size Distributing Valve Model Max Elevation Lift Manifold Length Manifold Pipe Class Manifold Pipe Size Number of Laterals per Cell Lateral Length Lateral Pipe Class Lateral Pipe Size Orifice Size Orifice Spacing Residual Head Flow Meter 'Add-on' Friction Losses 1.25 30 40 1.50 None 7 6 40 1.50 3 28 40 1.50 5/32 3 5 None 0 inches feet inches feet feet inches feet inches inches feet feet inches feet Calculations Minimum Flow Rate per Orifice Number of Orifices per Zone Total Flow Rate per Zone Number of Laterals per Zone % Flow Differential 1st/Last Orifice Transport Velocity 0.68 30 20.3 3 0.3 3.2 gpm gpm % fps Frictional Head Losses Loss through Discharge Loss in Transport Loss through Valve Loss in Manifold Loss in Laterals Loss through Flowmeter 'Add-on' Friction Losses 2.9 0.8 0.0 0.0 0.0 0.0 0.0 feet feet feet feet feet feet feet Pipe Volumes Vol of Transport Line Vol of Manifold Vol of Laterals per Zone Total Volume 3.2 0.6 8.9 12.7 gals gals gals gals Minimum Pump Requirements Design Flow Rate Total Dynamic Head 20.3 15.7 gpm feet 0 5 10 15 20 25 30 35 40 0 50 100 150 200 250 300 Net Discharge (gpm) PumpData PF3005 High Head Effluent Pump 30 GPM, 1/2HP 115/230V 1Ø 60Hz, 200V 3Ø 60Hz PF3007 High Head Effluent Pump 30 GPM, 3/4HP 230V 1Ø 60Hz, 200/460V 3Ø 60Hz PF3010 High Head Effluent Pump 30 GPM, 1HP 230V 1Ø 60Hz, 200/460V 3Ø 60Hz PF3015 High Head Effluent Pump 30 GPM, 1-1/2HP 230V 1Ø 60Hz, 200/230/460V 3Ø 60Hz Legend System Curve: Pump Curve: Pump Optimal Range: Operating Point: Design Point: 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 10/4/2017 15-07-89 Septic - New 303-408-2042 OWNER Traul Amd Exemption 1910 Glen Dale Dr. Lakewood, CO 80215 New OWTS for s/f dwelling and detached barn A SEPT-03-17-4619 239515400014 New 4/7/2017 Jeff Klarner & Sandy Linn TBD CR 117 $0.00 832‐R‐13‐002