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Home My WebLink AboutOWTS Installation Observations 03.16.2022CBO Inc. 129 Cains Lane Carbondale, CO 81623 970.309.5259 carla.ostberg@gmail.com March 16, 2022 Project No. C1629 Edgar Cuc Valenz Construction c/o Jeff Johnson jeff@jjarchitectual.com Onsite Wastewater Treatment System (OWTS) Installation Observations Lot 27, Callicotte Ranch Garfield County, Colorado Permit Number SEPT-08-21-7032 Edgar, CBO Inc. observed the installation of the onsite wastewater treatment system (OWTS) on October 4, 2021 for the subject property. Valenz Construction installed the system. The OWTS design is based on 4-bedrooms. An average daily wastewater flow of 525 GPD was used. The system installation included a 1500-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 four gravelless chamber rows (trenches). The distribution box was accessible from grade and had flow equalizers, or similar product, installed on each outlet pipe in the distribution box to assure equal flow to each trench. Each row (trench) consists of 14 ‘ARC’ ADS chambers for a total of 56 chambers and 840 square feet of infiltrative area. The soil treatment area (STA) was excavated, and chambers were set on top of the cleared area rather than typical trenching. The STA was installed cross gradient instead of parallel to the existing topography. While this is a variation from the design, there was at least 4-feet of undisturbed soil between each row and backfill over the chambers may not exceed 3-feet. 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 Sewer line from house to septic tank / clean out / view towards tank View of septic tank Inlet tee Outlet side of septic tank with effluent filter (add handle extension) Effluent filter View of STA with chambers on grade (cross gradient installation) View of Distribution Box and STA (grading on distribution side of excavation was proposed to be cut to no more than 3-feet over the chambers. Distribution box Backfill over chambers not to exceed 3-feet KdkL Garfield Cou,rzty Public Health Garfield County Public Health 2014 Blake Ave. Glenwood Springs, CO 81601 Phone: (970) 945-6614 ext. 8150 Permit Number SEPT-7032 OWTS PERMIT KEEP AVAILABLE AT PROJECT SITE Permit Type X New X Repair X Remodel/addition X Tank only Issue Date 08/27/2021 Expiration Date 08/27/2022 For inspections, call: 970-945-6614 ext. 8150 and call the Design Engineer, if applicable Project Address: Lot 27, Callicotte Ranch, Carbondale, CO 81623 Parcel No.: 239324306027 Owner Name: Keila Valenzuela Owner Phone: (970) 987-2509 Designed By: CBO Septic Consulting, Inc. Designer Phone: (970) 309-5259 Number of Bedrooms: 4 Minimum Tank Capacity: 1,250-gallon Minimum Absorption: 735 ft2 Permit Conditions: This OWTS Permit is approved on the condition of compliance with the report and design as submitted by CBO Septic Consulting, Inc. dated June 19, 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 four -bedroom residence. The new system will consist of a new, two - compartment 1,500-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 768 ft2 of STA. The new STA will consist of four gravelless chamber trenches, each trench consisting of 16 Infiltrator Quick4 chambers per trench (64 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 instaPled system prior to bac'kfill. 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. 08/27/2021 Issued By: Garfield County Environmental Health Date Department Garfield County Public Health Department – working to promote health and prevent disease Public Health Keila Valenzuela 1853 County Road 109 Glenwood Springs, CO 81601 Via email: kel_valenz@yahoo.com Subject: Final Acceptance Letter Lot 27, Callicotte Ranch Carbondale, CO 81623 OWTS Permit #: SEPT-7032 November 1, 2021 Keila, On October 5, 2021, we visited the residence under construction at Lot 27 of Callicotte Ranch near Carbondale in Garfield County, Colorado to observe the OWTS installation pursuant to OWTS Permit # SEPT-7032. At the time of our site visit, the contractor had installed the new sewer line and cleanout adjacent to the residence, the new poly 1,500-gallon two- compartment septic tank, the new effluent line, the distribution box, and the four chamber trenches. The septic tank and distribution box were installed level with access brought to grade. An effluent filter had been installed in the outlet tee of the septic tank. The chamber trenches were level, with 4-feet between the trenches. Each trench consisted of 14 ARC 36 chambers per trench (56 total, 840 ft2 total STA). Additionally, inspection ports were present at the distal end of each trench. 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. Please provide an As-Built drawing of the system, when available, for our files. 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