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Home My WebLink AboutOWTS Installation Observations 10.31.2023CBO Inc. 129 Cains Lane Carbondale, CO 81623 970.309.5259 carla.ostberg@gmail.com October 31, 2023 Project No. C1624 Michael Ritter mcritter@live.com Onsite Wastewater Treatment System (OWTS) Installation Observations 2053 Grass Mesa Road Garfield County, Colorado OWTS Permit SEPT-7346 Michael, CBO Inc. observed the installation of the onsite wastewater treatment system (OWTS) on October 11, 2022 for the subject property. TM Landworks installed the system. Notes from our inspection are enclosed. Punchlist items were photo documented and are included in this letter. The OWTS design is based on 2-bedrooms in the residence. An average daily wastewater flow of 300 GPD was used. A temporary water tank was present and measured 51-feet to the septic tank. The permanent cistern is located approximately 83-feet from the septic tank. The 4-inch diameter SDR-35 sewer line exiting the residence has a double-sweep clean out and a minimum 2% grade to the septic tank. The system installation included a 1000-gallon, two-compartment poly Norwesco® septic tank with an effluent filter on the outlet tee. This filter must be cleaned annually, or as needed. Risers bring the manhole lids to grade for access. Effluent gravity flows to a distribution box, and then to three gravelless chamber trenches. 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. Each trench consists of 8 ‘ADS’ ARC 36 chambers for a total of 24 chambers and 360 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. 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 View of clean out looking toward temp water tank / septic tank Sewer line exiting septic tank ADS ARC 26 chambers Chamber trenches View of temporary water tank temp water tank looking towards house to the east Inlet tee Outlet tee with filter and handle extension / note sewer line angles downward outside of tank Distribution box with angled inlet (remove if it blocks outlet pipe) Inspection ports View of final grading Garfield County Public Health Department – working to promote health and prevent disease Public Health Michael Ritter 2053 Grass Mesa Road Rifle, CO 81650 Via email: mcritter@live.com Subject: Final Acceptance Letter Ritter Residence 2053 Grass Mesa Road Rifle, CO 81650 OWTS Permit #: SEPT-7346 December 14, 2022 John, On October 10, 2022, we visited the site of the Ritter Residence under construction at 2053 Grass Mesa Road near Rifle in Garfield County, Colorado to observe the OWTS installation pursuant to OWTS Permit # SEPT-7346. At the time of our site visit, the contractor had installed the new sewer line and cleanout adjacent to the residence, the new poly 1,000- gallon two-compartment septic tank, the new effluent line, the concrete distribution box, and the three gravelless chamber trenches. The septic tank was installed level with access brought to grade. An effluent filter had been installed in the outlet tee of the septic tank. The trenches were level, with 4-feet between the trenches. The trenches consisted of 8 Arc36 chambers per trench (24 total chambers, 360 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 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: 2053 Grass Mesa Rd, Silt, CO 81652 Parcel No.: _217726300324 Owner Name: Michael Ritter Owner Phone: (970) 366-0386 Designed By: CBO, Inc. Designer Phone: (970) 309-5259 Number of Bedrooms: 2 Minimum Tank Capacity: 1,000-gallon Minimum Absorption: 350 ft 2 OWTS PERMIT KEEP AVAILABLE AT PROJECT SITE Permit Number _SEPT-7346_______________________________ Permit Type X New X Repair X Remodel/addition X Tank only Issue Date _02/22/2022____________________ Expiration Date_02/22/2023_________________ Permit Conditions: This OWTS Permit is approved on the condition of compliance with the report and design as submitted by CBO, Inc. dated June 27, 2021. Changes to the design and permit must be approved by Garfield County Public Health and the designer prior to construction. The new OWTS will serve a new 2-bedroom residence. The system will consist of a new, two- compartment minimum 1,000-gallon septic tank set level with access to grade and an effluent filter in the outlet tee of the tank. Effluent will gravity flow to a distribution box set level with access to grade that will distribute effluent to 360 ft2 of STA. The new STA will consist of three gravelless chamber trenches. Each trench will consist of 10 Quick4 chambers (30 Quick4). Inspection ports are to be installed at the beginning and terminal ends 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. 02/22/2022 Issued By: Garfield County Environmental Health Department Date 832‐R‐13‐002