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HomeMy WebLinkAboutOWTS Installation Observations 12.09.17 December 9, 2017 Project No. C1136 Habitat for Humanity c/o Dana Dalla Betta habitat.dana@gmail.com Onsite Wastewater Treatment System (OWTS) Installation Observations Habitat for Humanity ReStore 2.0 Lot 4, Fyrwald Exemption Garfield County, Colorado Permit Number SEPT-03-17-4606 Dana, ALL SERVICE septic, LLC observed the installation of the onsite wastewater treatment system (OW TS) on August 10, September 1, September 8, November 10, and December 8, 2017 for the subject property. K & D Construction, Inc. installed the system. The OWTS design was based on 12 employees working 8-hour shifts in the warehouse and customers shopping in the retail space. An average daily wastewater flow of 500 GPD was used. Tracking of water usage is REQUIRED to assure flows from the warehouse remain below the design flow. We recommend weekly readings to assure accurate estimates of average daily flows. We understand water meters have been installed both at the well and on the waterline inside the warehouse. If at any time average daily flows exceed 500 GPD, this office must be contacted. For large events outside of normal customer- based operations, we strongly recommend port-a-potties to accommodate excess usage. The system installation included a 1250-gallon, two-compartment concrete septic tank with an Orenco® ProPak pumping system and PF5005 pump in the second compartment of the septic tank. There is an effluent filter inside the second compartment of the septic tank. This filter must be cleaned annually, or as needed. The control panel for the pump is located inside the warehouse. Valley Precast personnel performed start up on the pumping system on December 6, 2017. We also tested the pump and alarm and flushed the laterals in the soil treatment area (STA) on December 8, 2017. A Schedule 80, 2-inch diameter pump line exits the pump chamber of the septic tank. Effluent is pressure dosed to bed consisting of four rows of 13 ‘Quick 4’ Infiltrator® chambers with 1.5-inch in diameter laterals suspended with zip ties from the underside of the chambers. The chambers were placed no more than 1-foot below native grade and the STA is slightly mounded. Chambers were connected with a 1.5-inch diameter level manifold. Laterals have 5/32-inch diameter orifices facing up, with the exception of the first and last holes facing down for drainage. The holes were placed 3-feet on center. Each lateral ends in a 90 degree ell facing up with a ball valve for flushing. Valves were placed in a valve box, accessible from grade, for access. Inspection ports were placed in all four corners of each bed. Ports were cut to grade and covered with a valve box for access. 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. Clean out outside of warehouse Septic tank before backfill Septic tank after backfill weep hole in pump line View of chamber bed construction of manifold View of chamber bed (looking south) N ~ I I I O' 10' 20' Scale: 1" = 20'-0" LOCATIONS OF OWTS COMPONENTS ON RECORD DRAWING ARE APPROXIMATE AND NOT THE RESULT OF A SURVEY. ALL ~ ~rn1m1 W 33 Four Wheel Drive Road Carbondale, Colorado 81623 Phone 970.309.5259 carla@allserviceseptic.com / > 17~ ~ ..JIU' -0 '/ LOCATION OF CONTROL ---,--,.I/ PANEL INSIDE WAREHOUSE ..JI. "(' 1.5 " DIA SCH-40 LEVEL MANIFOLD 2" DIA SCH-80 PUMP LI ~NDER DRl~WAY (M~ 1% SLO / ...........,._-+--1.5 ' IA SC~40 PVC LATERAL W /32" OR~ICES FACING U 3' 0 .. FIRS1'AND LAST 'QRIFICE FACE D~WN FOR DRAINAGE 'QU~K-4' CH ~- 4 RO~ OF 1 AMBE~ = 624 SP - (11 RECORD DRAWING _ \ Habitat for Humanity Restore 2.0 Lot 4, Fyrwald Exemption Garfield County, Colorado Project Number: C1136 \ \ \ / Date: 12/09/17 Designed By: CBOI record Reviewed By: RHP Drawn By: ANG I Sheet 1 of 1 832‐R‐13‐002 Do Your Part, Be SepticSmart: The Do's and Don'ts of Your Septic System Learn these simple steps to protect your home, health, envi r onment and property value: u*'*"#Mbe1Wt+t+ sept1csmart" U.S. Environmental Protect ion Ag ency P.r.otect It and Inspect It: Do: • Have your system inspected (in general) every three years by a licensed contractor and have the tank pumped, when necessary, generally every three to five years. Don't: • Pour cooking grease or oil down the sink or toilet. • Rinse coffee grounds into the sink. • Pour household chemicals down the Do: • Eliminate or limit the use of a garbage disposal. • Properly dispose of coffee grounds & food. sink or flush them . • Put grease in a container to harden before discarding in the trash. • Flush non -degradable products or • Dispose of these items in the trash can! chemicals, such as feminine hygiene products, condoms, dental floss, diapers, cigarette butts, cat litter, paper towels, pharmaceuticals. 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. Don't • 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: • Consult a septic service professional to advise you of the proper distance for planting trees and shrubs, depending on your septic tank location. 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.