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Home My WebLink AboutOWTS Installation Observations 01.05.2023CBO Inc. 129 Cains Lane Carbondale, CO 81623 970.309.5259 carla.ostberg@gmail.com January 5, 2022 Project No. C1733 Darlene Snyder 174 Black Diamond Mine Road Glenwood Springs, CO 81601 Onsite Wastewater Treatment System (OWTS) Installation Observations 174 Black Diamond Mine Road Garfield County, Colorado Permit Number SEPT-07-22-7650 Darlene, CBO Inc. observed the installation of the onsite wastewater treatment system (OWTS) on September 7, 2022 for the subject property. Finishing Touch Dirtworx (Jesse Schoeller) installed the system. The OWTS design is based on 4-bedrooms. An average daily wastewater flow of 525 GPD was used. The existing soil treatment area (STA) was abandoned in place. The existing sewer line from the house to the septic tank remained. The sewer line entering the existing 1250-gallon, two compartment concrete septic tank was properly aligned. An Orenco® Biotube Effluent Filter was installed in the second compartment, on the outlet tee in the septic tank. This filter should be cleaned annually, or as needed. A new 4-inch SDR-35 sewer line was installed to a new distribution box. The distribution box was accessible from grade with flow equalizers installed on each outlet pipe in the distribution box to assure equal flow to each trench. Five gravelless chamber trenches were installed. Four trenches consisted of 16 ‘ADS’ ARC 36 Low Profile chambers and one trench with 10 ‘ADS’ ARC Low Profile chambers (to avoid removing mature trees) for a total of 74 chambers and 1110 square feet of infiltrative area. There was at least 4-feet of undisturbed soil between each trench. Inspection ports were installed at the beginning and end of each trench. Ports may be cut to grade and placed in sprinkler boxes for access. Design Calculations: Average Design Flow = 75 GPD x 2 people/bedroom x 3 Bedrooms + 75 GPD (4th Bedroom) = 525 GPD LTAR = 0.35 GPD/SF 525 GPD / 0.35 GPD/SF x 1.0 (gravity trenches) x 0.7 (chambers) = Min. 1050 SF 74 chambers installed x 15 SF per chamber = total 1110 SF 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 on the expertise of the installer, soil type, and weather conditions. Please call with questions. Sincerely, CBO Inc. Carla Ostberg, MPH, REHS Trenches Sewer line exiting the septic tank Distribution box Piping to trenches well bedded Inlet tee realigned into septic tank Effluent filter on outlet tee of septic tank Greater than 1% fall from D-box to trenches Distribution box Pipes well bedded ADS ARC 36 Low Profile chambers Chambers level View of trenches Garfield County Public Health 2014 Blake Ave. Glenwood Springs,CO 81601 Phone:970)945 6614 ext.8150 For inspections,call:970 945 6614 ext.8150 and call the Design Engineer,if applicable Project Address:174 Black Diamond Mine Road,Glenwood Springs,CO 81601 Parcel No.:239509100016 Owner Name:Darlene Snyder Owner Phone:970)947 9751 Designed By:CBO Septic Consulting,Inc.Designer Phone:970)309 5259 Number of Bedrooms 4__Minimum Tank Capacity 1,250 gal__Minimum Absorption_1,050 SF OWTS PERMIT KEEP AVAILABLE AT PROJECT SITE Permit Number SEPT 7650________________________ Permit Type X New X Repair X Remodel/addition X Tank only X Field Only X Amendment Issue Date 07/19/2022 Expiration Date 07/19/2023 Permit Conditions: This OWTS Permit is approved on the condition of compliance with the design as submitted by CBO Septic Consulting,Inc.dated July 5,2022.Changes must be approved by Garfield County Public Health and the designer prior to construction. The new OWTS will serve an existing 4 bedroom residence.The system will consist of an existing 1,250 gallon septic tank with a new effluent filter installed in the outlet tee of the tank.Effluent will gravity flow to a distribution box set level with access to grade to distribute effluent to 1,080 ft2 of new STA.A Bull Run valve may be installed to allow alternate flow between the existing,over saturated STA once dried out)and the new STA.The new STA will consist of five chamber trenches. Each trench will consist of 18 chambers per trench 90 Quick4 chambers total).Inspection ports are to be installed at each end of each trench.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 approval of the system will be issued. 07/19/2022 Issued By:Garfield County Environmental Health Department Date Garfield County Public Health Department – working to promote health and prevent disease Public Health Darlene Snyder 174 Black Diamond Mine Road Glenwood Springs, CO 81601 Via email: carla.ostberg@gmail.com Subject:Final Acceptance Letter Snyder Residence 174 Black Diamond Mine Road Glenwood Springs, CO 81601 OWTS Permit #: SEPT‐7650 November 22, 2022 Darlene and Carla, On September 7, 2022, we visited the site of the Snyder Residence at 174 Black Diamond Mine Road near Glenwood Springs in Garfield County, Colorado to observe the OWTS installation pursuant to OWTS Permit # SEPT‐7650. At the time of our site visit, the contractor had installed the new effluent filter in the existing 1,250‐gallon two‐compartment septic tank, the new effluent line, the new distribution box, and the five gravelless chamber trenches. The chamber trenches and the distribution box were installed level. The STA consisted of four trenches of 16 Arc 36 chambers per trench and one row of 10 ARC 36 chambers (74 total chambers, 1,110 ft2 total STA). Additionally, inspection ports were present at each end of each trench. In our opinion, this system was installed in general conformance with Garfield County OWTS Regulations. Please submit an As‐built drawing of the system when available. 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 III Garfield County Public Health 2014 Blake Avenue Glenwood Springs, CO 81601 (970) 945‐6614 ext. 8106 twhite@garfield‐county.com 195 W. 14th Street Rifle, CO 81650 (970) 625-5200 2014 Blake Avenue Glenwood Springs, CO 81601 (970) 945-6614 832‐R‐13‐002