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HomeMy WebLinkAboutAs-built Report 09.28.202033 FOUR WHEEL DRIVE ROAD CARBONDALE, CO 81 623 970.309.5259 CARLA.OSTBERG@GMAIL.COM -i:i i'Ic C(IAyi'I'I'ING September 28, 2020 Bill Huffman permitbill@yahoo.com Onsite Wastewater Treatment System (OWTS) Installation Observations 102 Fairway Lane Garfield County, Colorado Permit No. SEPT-6218 Project No. C1515 CBO Inc. observed the installation of the onsite wastewater treatment system (OWTS) design for the subject residence on April 23, 2020 for the subject property. Teagle Excavating installed the system. The existing septic tank was pumped and crushed, and remaining void filled with onsite soils. The existing soil treatment area (STA) was abandoned in place. While the current residence has only 3-bedrooms, the new OWTS design is based on 4-bedrooms. An average daily wastewater flow of 525 GPD was used. The existing sewer line exiting the house was cast iron. This pipe was replaced. The sewer line outside of the patio was replaced with 4-inch diameter SDR-35 sewer line and a double -sweep clean out added to the sewer line between the residence and the new septic tank. The sewer line maintains a minimum 2% grade from the house to the septic tank. A new 1500-gallon, two -compartment Infiltrator® poly septic tank was installed with Orenco® Biotube effluent filter on the outlet tee followed by a 500-gallon, single -compartment Infiltrator® poly septic tank with an Orenco® ProPak pumping system and PF3005 pump. The effluent filters need to be cleaned annually, or as needed. The floats were set to dose approximately 70 gallons each pump cycle, allowing 3.5 gallons for drain back. The control panel was located within line of sight of the septic tank. Valley Precast out of Buena Vista performed start up on the pumping system. A 1.5-inch diameter Schedule 40 pump line was installed from the pump to an Orenco® automatic distributing valve (ADV), model 6404. This pump line has a minimum 1 % grade for proper drain back into the tank after each pump cycle. The ADV was placed at a high point in the system and was placed in an insulated riser with access from grade. Effluent is pressure dosed through FOUR 1.5-inch diameter pipes to two beds, each with 4 rows of 11 `Quick 4' Low Profile Infiltrator® chambers, for a total of 88 chambers and 1056 square feet of infiltrative area. It should be noted that each bed is divided into two sections, so two rows are connected with a single manifold. There was at least 6-feet of undisturbed soil between each bed. Laterals were hung with zip ties from the underside of the chambers. Laterals have 5/32-inch diameter orifices facing up, with the exception of the first and last holes facing down for drainage. The orifices were drilled 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 each corner of each bed. Ports may be 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. CBO Inc. 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, CBO Inc. ow-t(cLav-6A8 Reviewed By: Carla Ostberg, MPH, REHS Romeo Baylosis, P.E. Effluent filter in outlet side of 1500 gal tank View of septic tank and pump chamber New, 4-inch diameter sewer line with clean out exiting house Inlet tee of 1500-gal tank View of pump chamber looking toward ADV ADV Pump chamber prior to wiring Flushing valves at the end of each chamber row 2 rows per bed connected with a single manifold View of bed Low profile chambers Control panel mounted on house Control panel N I 0 10' 20' SCALE: 1 = 20'=0" EXISTING STA ABANDONED EXISTING TANK ABANDONED IN PLACE NEW 4" DIA SDR-35 SEWER PIPE, MIN 2% FALL TO TANK 2' THE LO AT ON OF IMPROVEMENTS SHOWN ARE NOT THE RESULT OF A POP=RTY SURVEY. THE LOCATIONS ARE APPROXIMATE. O RECORD DRAWING Zo 0 2' FENCE 1 \ 39' 1.5" DIA SCH 40 PUMP LINE (WITH 1% DRAIN BACK) 46. 500-GALLON POLY CHAMBER WITH AN ORENCO PUMPING SYSTEM. RISER AND LID TO GRADE. 1500-GALLON, TWO -COMPARTMENT POLY SEPTIC TANK WITH EFFLUENT FILTER ON THE OUTLET, RISERS AND LIDS TO GRADE. FLUSHING VALVES AT END OF EACH LATERAL OBSERVATION PIPE AT EACH CORNER OF EACH BED 04 At�V AT HIGH POINT OF SYSTEM TH A CESS AT GRADE 1.5" DIA SCH-40 SEWER LINE TO EACH BED (MIN. 1% SLOPE TO BEDS) 1.5" DIA LEVEL MANIFOLD. P SPE"TY LINE 12' 8' UTILITY EASEMENT NOTE: IRRIGATION DITCH IN CULV LOCATED EAST OF FENCE LINE. MINIMUM SETBACK 10' FROM DITCH TO STA. Mau.1: • •.1r7.1I, 1.l'1.... CBO Inc. 33 Four Wheel Drive Road Carbondale, Colorado 81623 Phone 970.309.5259 carla.ostberg@gmail.com Huffman Residence 102 Fairway Lane Garfield County, Colorado Project Number: C1515 Date: 12/13/2020 Designed by: CBO Reviewed by: RB Drawn by: DD record Sheet 1 OF 1 195 W. 141" Street Rifle, CO 81650 (970) 625-5200 William Huffman 102 Fairway Lane Glenwood Springs, CO 81601 Garfield County Public Health Subject: Final OWTS Inspection 102 Fairway Lane Glenwood Springs, CO 81601 Final Acceptance Letter OWTS Permit #: SEPT-6218 May 5, 2020 Mr. Huffman, 2014 Blake Avenue Glenwood Springs, CO 81601 (970) 945-6614 On April 23, 2020, we visited 102 Fairway Lane near Glenwood Springs in Garfield County, Colorado to observe the Onsite Wastewater Treatment System (OWTS) installation pursuant to OWTS Permit # SEPT-6218. The contractor had installed a 1,500-gallon poly septic tank with an effluent filter in the outlet tee, a 500-gallon pump chamber and pump, effluent lines, an automatic distribution valve, and two, four row gravelless chamber beds consisting of 44 chambers per bed (88 chambers total) as designed by Carla Ostberg of CBO Septic Consulting, Inc. A cleanout was installed between the building and septic tank at the time of our site visit. Also, the pump control panel was mounted adjacent to the residence. In our opinion, this system was installed in general conformance with Garfield County OWTS Regulations. No further action or review from Garfield County Environmental Health is required regarding this permit. Thank you, Edward R. "Ted" White, P.E. Environmental Health Specialist 111 Garfield County Public Health 2014 Blake Avenue Glenwood Springs, CO 81601 (970) 945-6614 ext. 8106 twhite©garfield-county.com Garfield County Public Health Department — working to promote health and prevent disease Do Your Part, Be SepticSmart: The Do's and Don'ts of Your Septic System Learn these simple steps to protect your home, health, environment and property value: septicsmart U.S. Environmental Protection Agency 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 sink or flush them. Do: • Eliminate or limit the use of a garbage disposal. • Properly dispose of coffee grounds a food. • Put grease in a container to harden before discarding in the trash. 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. 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: • 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 ISEFA 832-R-13-002 • September 2013