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HomeMy WebLinkAboutOWTS Installation ObservationsCBO Inc. 129 Cains Lane Carbondale, CO 81623 970.309.5259 carla.ostberg@gmail.com April 1, 2025 Project No. C1701 Bradley Walters bradley@r yobifoundation.org Onsite Wastewater Treatment System (OWTS) Installation Observations 13112 Hwy 82 Garfield County, Colorado OWTS Permit SEPT-7454 Bradley, CBO Inc. observed the installation of the onsite wastewater treatment system (OWTS) on July 12, 2022 for the subject property. AV Services installed the system. The OWTS design is based on 5-bedrooms. An average daily wastewater flow of 750 GPD was used. A new 4-inch SDR-35 diameter sewer line was installed with a double-sweep clean out and a minimum 2% grade to the septic tank. Schedule 40 conduit was installed for the approximate 20-feet that extends under the driveway. The system installation included a 1500 -gallon, two-compartment Infiltrator® poly septic tank with an effluent filter on the outlet tee. The effluent filter must be cleaned annually, or as needed. Effluent gravity flows to a distribution box, and then to six 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 15 ‘Quick 4’ Standard Plus Infiltrator® chambers for a total of 90 chambers and 1080 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 Sewer line to house with Sched 40 conduit under driveway View of septic tank and STA Inlet tee Effluent filter 90 degree angle eliminated / distribution box View of piping to chamber trenches Chamber trenches with inspection ports at beginning and end Punch list of items corrected after inspection Clean outs installed near residence Piing into and out of septic tank Leveling chamber trenches View of STA Drone photos 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: 13112, Hwy 82, Glenwood Springs, CO 81673 Parcel No.: 239327103003 Owner Name: Ryobi Foundation Owner Phone: (970) 309-4132 Designed By: CBO, Inc. Designer Phone: (970) 309-5259 Number of Bedrooms: 5 Minimum Tank Capacity: 1,500-gallon Minimum Absorption: 840 ft 2 OWTS PERMIT KEEP AVAILABLE AT PROJECT SITE Permit Number _SEPT-7454_______________________________ Permit Type X New X Repair X Remodel/addition X Tank only Issue Date _05/09/2022____________________ Expiration Date_11/09/2023_________________ Permit Conditions: This OWTS Permit is approved on the condition of compliance with the report and design as submitted by CBO, Inc. dated March 26, 2022. 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 an existing 5-bedroom residence. The existing septic tank will be crushed and abandoned in place. The new system will consist of a new, two-compartment minimum 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 1080 ft2 of STA. The new STA will consist of six gravelless chamber trenches. Each trench will consist of 15 Quick4 chambers (90 Quick4 total). Inspection ports are to be installed at the terminal 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. 05/09/2022 Issued By: Garfield County Environmental Health Department Date 832‐R‐13‐002