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HomeMy WebLinkAboutOWTS Installation Observations 11.04.2024CBO Inc. 129 Cains Lane Carbondale, CO 81623 970.309.5259 carla.ostberg@gmail.com November 4, 2024 Project No. C1739 Jen Hiatt jnh@hiatthallenbeck.com Onsite Wastewater Treatment System (OWTS) Installation Observations 1884 CR 120 Garfield County, Colorado OWTS Permit SEPT-8020 Jen, CBO Inc. observed the installation of the onsite wastewater treatment system (OWTS) on July 8, 2024 for the subject property. El Jebel Concrete and Excavation installed the system. The OWTS design is based on 2-bedrooms. An average daily wastewater flow of 300 GPD was used. The 4-inch diameter Schedule 40 sewer line exiting the residence had a double-sweep clean out and a minimum 2% grade to the septic tank. The system installation included a 1000-gallon, two-compartment septic tank Infiltrator® poly 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 12 ‘Quick 4’ Standard Plus Infiltrator® chambers for a total of 36 chambers and 432 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 Clean out near foundation Sewer line under driveway to septic tank Sewer line from house to septic tank Inlet tee Effluent filter Infiltrator 1060 Septic tank set level Sewer line existing septic tank Distribution box Trenches Trenches View of septic tank, dbox, and trenches Various pipe slope readings   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: 1884 County Road 120, Glenwood Springs, CO 81601    Parcel No.: 218718102029  Owner Name: Jennifer Hiatt     Owner Phone: (970) 366‐6553  Contractor Name: W/W Construction    Contractor Phone: (970) 319‐4353  Designed By: CBO, Inc.       Designer Phone: (970) 309‐5259         Number of Bedrooms _2__Minimum Tank Capacity _1,000‐gal__Minimum Absorption_350 SF  OWTS PERMIT   KEEP AVAILABLE AT PROJECT SITE   Permit Number _SEPT‐8020________________________  Permit Type X New X Repair X Remodel/addition X Tank only X Field Only X Amendment   Issue Date 03/24/2023    Expiration Date 03/24/2024   Permit Conditions:   This OWTS Permit is approved on the condition of compliance with the design as submitted by CBO,  Inc. dated September 10, 2022. Changes 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 1,000‐gallon septic tank set level with access to the compartments provided at grade  and an effluent filter in the outlet tee of the tank. Effluent will gravity flow to a distribution box set  level with access provided at grade that will distribute effluent to 432 ft2 of STA. The new STA will  consist of three gravelless chamber trenches with 12 Quick4 chambers per trench (36 Quick4  chambers total). Inspection ports shall 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.        03/24/2023  Issued By: Garfield County Environmental Health  Department  Date    832‐R‐13‐002