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Home My WebLink AboutEngineer's Final Inspection Report 01.22.2015ALt SIRVICI 33 Four Wheel Drive Rd Carbondale, Co 01623 970-309-5259 January 22, 2014 Larry Singer Issinger@comcast.net Onsite Wastewater Treatment System (OWTS) Installation Observations 2621 CR 100 Garfield County, Colorado Garfield County Permit No. SEPT -8-14-3344 Larry, Project No. C1072 ALL SERVICE septic, LLC observed the installation of the onsite wastewater treatment system (OWTS) on December 151 and 4u', 2014 for the subject property. PifCo installed the system. The OWTS will serve a 5 -bedroom main residence, 1 -bedroom cabin, and a future RV parking structure with plumbing to be used by residents of the property. The existing OWTSs serving the main residence (septic tank and soil treatment area) and cabin (cesspool) were properly abandoned. The new OWTS installation included a new Valley Precast 1500 -gallon, three -compartment septic tank (specifications enclosed). This variation from the original design was approved by Andy Schwaller with Garfield County Community Development Department. "Dead men" were installed under the septic tank to avoid floating of the tank during high seasonal groundwater. We recommend the septic tank NOT be pumped during high groundwater conditions. At the time of our installation observations, only the cables were visible. Additionally, backfill around the septic tank appeared to have some Targe rocks. We recommended the installer remove the larger rocks and replace with smaller diameter material for backfill. The Orenco® duplexing pumping system was installed in the third compartment of the septic tank and pump start up performed by Valley Precast. There is an effluent filter in this compartment that must be cleaned annually, or as needed. The control panel is located within line of sight of the septic tank, mounted on the outside wall of the residence. On January 20, 2015, we reviewed the operation of the OWTS and demonstrated how to remove and clean the filter in the septic tank. Effluent is pumped through a 1.5 -inch diameter pump line to the mound. The minimum separation of 4 -feet between the infiltrative area and high seasonal groundwater was maintained. The mound consisted of a 15' x 56' footprint of concrete sand, 2 -feet deep. The 1.5 -inch diameter laterals with 1/8 -inch orifice holes (facing down) spaced 3 -feet on center were placed on gravel and geofabric was used to cover the distribution laterals. Inspection ports were installed on opposite corners of the sand filter. 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 oft h (a Os -f )6 ( g Carla Ostberg, MPH, RENS Reviewed By: Clean out and 4 -inch sewer pipe from house to septic tank Control pancl 4 -inch sewer pipe from cabin to septic tank control panel for pump View of septic tank and risers Inlet tee (first compartment) Note cable holding dead men Note larger cobbles - recommended smaller diameter backfill material Pump chamber and effluent filter (third compartment) E 2 Pump line from septic tank to mound (second pipe is electrical conduit) Mound prepared for sand filter material Distribution laterals on sand and gravel gravel sand Sand filter material Laterals with orifice holes Inspection port Geofabric over laterals. Missing caps on observation pipes on mound (Jan. 20, 2015) Pump Selection for a Pressurized System - Single Family Residence Project Singer Residence / Project C1072 Parameters Discharge Assembly Size 1.25 inches Transport Length 220 feet Transport Pipe Class 40 Transport Line Size 1.50 inches Distributing Vabe Modd None Max Elevation Lift 6 feet Manifold Length 9 feet Manifold Pipe Class 40 Manifold Pipe Size 1.50 inches Number of Laterals per CeII 3 Lateral Length 47 feet Lateral Pipe Class 40 Lateral Pipe Sia 1.50 inches Orifice Size 118 inches Orifice Spadng 3 feel Residual Head 5 feet Flow Meter None inches 'Add-on' Friction Losses 0 feet Calculations Minimum Flow Rate per Orifice 0,43 gpm Number of Orfrrxs per Zone 48 Total Flow Rate per Zone 20.8 gpm Number of Laterals per Zone 3 % Flow Differential 1 stlLasl Orifice 0.5 % Transport Velodty 3.3 fps Frictional Head Losses Loss through Discharge Loss in Transport Loss through Value Loss in Manifold Loss in Laterals Lass through Flowmeter Add-on Fridion Losses Pipe Volumes 3.0 feet 5,8 feet 0 0 feet 01 feet 0.1 feet 0.0 feet 0.0 feet Vol of Transport Line Vol of Manifold Vol of Laterals per Zone Total Volume Minimum Pump a33 09 149 39.1 Requirements gals gals gals gals Design Flow Rate Total Dynamic Head Orsnro thr•kemr r*hImaotec Elorit r. Flo MeV rte. irrr.rr 20.8 gpm 20.0 feet Total Dynamic Head, TDH (Feat) 300 250 200 150 TT u•c 1� 1 15 20 25 Net Discharge (gpm) PumpData PF3005 High Heed Effluent Pump 30 GPM 1I2HP 115/233V 10 601Z 20134 306 0Hz PF3007 High Head Effluent Pump 30 GPM 314HP 230V 10 601-lZ 200/460V 30 60Hz PF3010 High Head Effluent Pump 30 GPM 1HP 230V 10 601-lz, 200/460V 30 60Hz PF3015 High Head Effluent Pump 30 GPM t-1I2HP 230V 10601tz, 200/230I460V 30601-tz Legend 35 System Cure._ Pump Curve Pump Optimal Range Operating Paint Deagn Point° 40 Item # 1500T-3CP-HH 1500 Gallon Top Seam Three Compartment with High Head Pump Top View Section View 7 162 Tank: "Meets ASTM C-1227 spec including C-1644-06 for resilient connectors • 6000 psi concrete • Delivered complete with internal piping Service contracts available for maintenance Inlet Bide Dipping 8pses Welt 15' Long x 8' Wide Inlet Outlet 56" below inlet Invert 56" 73" Net Capedly 157" Pump: • Lowers TSS and Improves effluent Quality to fleld • Easiest pump system to maintain on the market • Complete installation (wiring, panel, mounting and start-up procedures) • Complete warranty ame dons Length Width Height 162" 76" 92" Net weight Middle Outlet Side Total Lid Tank Total 1,018 gallons 505 gallons 505 gedlone 2,026 gallons 5,420 lbs 16,240 Ms 21,860 lbs Water & (719) 395478428005 Co. 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Don't: • Flush non -degradable products or chemicals, such as feminine hygiene products, condoms, dental floss, diapers, cigarette butts cat litter, paper towels, pharmaceuticals. Do: • Dispose of these items in the trash can! Don't: • Park or drive on your drainfield. The weight can damage the drain lines. • Plant trees or shrubs too close to your drainfield, roots can grow into your system and clog it. Do: • Consult a septic service professional to advise you of the proper distance for planting trees and shrubs, depending on your septic tank location. Dont • Concentrate your water use by using your dishwasher, shower, washing machine, and toilet at the same time. All that extra water can really strain your septic system. Do: - Stagger the use of water -generating appliances. This can be helpful especially if your system has not been pumped in a long time. • Become more water efficient by fixing plumbing leaks and consider installing bathroom and kitchen faucet aerators and water -efficient products. For more SepticSmart tips, visit: www.epa.gov/septicsmart 832-R-13-002 • September 24t 3