The URL can be used to link to this page

Home My WebLink AboutOWTS Installation Observations 07.18.2021 July 18, 2021 Project No. C1469 Shane David s.david@davidelectric.us Onsite Wastewater Treatment System (OWTS) Installation Observations 422 CR 162 Garfield County, Colorado Permit Number SEPT-02-20-6131 Shane, ALL SERVICE septic, LLC observed the installation of the onsite wastewater treatment system (OWTS) on May 31 and June 24, 2021 for the subject property. You, the property owner, installed the system. The existing OWTS serving the residence was abandoned. The septic tank was pumped, and the sides crushed, top, and bottom crushed and the void filled with onsite material. The existing STA was abandoned in place. The OWTS design is based on 5-bedrooms in a single-family residence. An average daily wastewater flow of 600 GPD was used. The existing sewer line from the existing portion of the residence remained in use. A new sewer line with a double sweep cleanout exits the new portion of the residence and ties into the sewer line entering the septic tank with a minimum of 2% grade. The system installation includes A 2000-gallon, two-compartment Valley Precast concrete septic tank with an Orenco® ProPak and PF3005 pump in the second compartment of the septic tank. The floats were set to dose approximately 60 gallons each pump cycle, allowing for approximately 1 gallon of drain back into the pump chamber after each pump cycle. Risers were installed on the septic tank to bring access to grade. The control panel was located within line of sight of the septic tank, mounted on a post to the east of the septic tank. We recommend Valley Precast out of Buena Vista perform start up on the pumping system. Pump line (1.5-inch diameter Schedule 40) was installed from the pump to an Orenco® automatic distributing valve (ADV), model 6404. The ADV was placed at a high point in the system in an insulated riser with access from grade. Effluent is pressure dosed through 1.5-inch diameter pipes to four trenches, each with 12 ARC ‘ADS’ chambers, for a total of 48 chambers and 720 square feet of infiltrative area. There was at least 4-feet of undisturbed soil between each trench. Effluent was pressure dosed to 1.5-inch diameter laterals, which 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 placed 3-feet on center. Each lateral ends in a 90 degree ell facing up with a ball valve for flushing. Valves may be placed in a valve box, accessible from grade, for access. Inspection ports must be placed at the beginning and end of each trench. 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. 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, Septic tank set 7/21/2021 Sewer line with clean out from residence Inlet tee Level on septic tank ADV Distribution lines to STA trenches Flushing valves and inspection ports at end of trenches Garfield County Public Health Garfield County Public Health 2014 Blake Ave. Glenwood Springs, CO 81601 Phone: (970) 945-6614 ext. 8150 OWTS PERMIT KEEP AVAILABLE AT PROJECT SITE Permit Number SEPT -6131 Permit Type X New X Repair X Remodel/addition X Tank only X Field Only X Amendment Issue Date 02/27/2020 Expiration Date 02/27/2021 For inspections, call: 970-945-6614 ext. 8150 and call the Design Engineer, if applicable Project Address: 422 County Road 162, Carbondale, CO 81623 Parcel No.: 2391-292-05-021 Owner Name: Shane & Amanda David Owner Phone: (970) 618-9845 Designed By: Carla Ostberg with ALL SERVICE septic, LLC Contractor Designer Phone: (970) 309-5259 Contractor Phone Number of Bedrooms 5 Minimum Tank Capacity 2,000 gal Minimum Absorption 672 SF Permit Conditions: This OWTS Permit is approved on the condition of compliance with the design as submitted by All Service Septic, LLC dated February 27, 2020. Changes must be approved by Garfield County Public Health and the designer prior to construction. The existing tank and OWTS at the site will be abandoned and replaced with a new OWTS. Existing OWTS components shall be abandoned as specified in the report prepared by All Service Septic, LLC dated February 27, 2020. The new OWTS will serve a five -bedroom residence and consist of a 2,000 - gallon, two-compartment concrete septic tank set level and accessible at grade with a pump in the second compartment of the tank, followed by an automatic distribution valve set level and accessible at grade at the high point of the system with four outlets to distribute effluent to 672 square feet of Soil Treatment Area (STA). Pump lines shall be 1.5" diameter Schedule 40 PVC pipe. The STA consists of 4 level gravelless chamber trenches, with 14 Infiltrator chambers each (56 total) with inspection ports at the beginning and end of each trench. Laterals shall be hung from the top of the chambers and consist of 1.5" diameter PVC pipe. Maintain all setbacks and elevations as designed. Contact the designer and Garfield County Public Health at least 48 hours prior to requesting final inspection of the installed system prior to backfill. Agreement All installations must comply with all requirements of the Garfield County OWTS regulations including but not limited to the conditions specified above. In consideration of the issuance of the permit, the applicant hereby agrees to comply with all laws and regulations related to the zoning, location, construction and erection of the proposed OWTS and associated structures for which this permit is granted. The applicant further agrees that if the above said regulations are not fully complied with in the zoning, location, erection and construction of the above described OWTS and structure, the permit may then be revoked by notice from the Health Department and immediately become null and void. The issuance of a permit and specifications of terms and conditions therein will not constitute assumption of liability, nor create presumption that the local public health agency or its employees may be liable for the failure or malfunctioning of any system. Permit issuance will not constitute a certification that the system, the equipment used in the system, or any component used for system operation will ensure continuous compliance with the provision of the OWTS Act, the regulations adopted thereunder, or any terms and conditions of a permit. Permit Approval Plans and specifications for the proposed OWTS have been reviewed and are considered satisfactory. Permission is hereby given to the property owner(s) to perform the work indicated in accordance with the Garfield County OWTS Regulation. This Permit will expire 1 year from the date of issuance unless construction on the system has commenced. An "as -built" drawing must be submitted and inspection of the system must be completed by GCPH before final approvayster,will be issued. 1E, X. -0/.0- z/Z ?-/z--oO Issued By: Garfield County Environmental Health Department Date 832‐R‐13‐002