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HomeMy WebLinkAboutOWTS Installation Observations 01.22.2023CBO Inc. 129 Cains Lane Carbondale, CO 81623 970.309.5259 carla.ostberg@gmail.com January 22, 2023 Project No. C1587 Glenn Beaton glennbeaton@gmail.com Onsite Wastewater Treatment System (OWTS) Installation Observations 124 Juniper Drive Garfield County, Colorado Permit Number SEPT-08-21-7014 Glenn, CBO Inc. observed the installation of the onsite wastewater treatment system (OWTS) on August 23, 2022 for the subject property. Dirt Devil Excavation installed the system. The OWTS design is based on 5-bedrooms. An average daily wastewater flow of 600 GPD was used. The 4-inch diameter SDR-35 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 1500-gallon, two-compartment Norwesco® poly septic tank with an effluent filter on the outlet tee. This filter must be cleaned annually, or as needed. Effluent gravity flows to a concrete distribution box, and then to four 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 ‘ADS’ ARC 36 chambers for a total of 48 chambers and 720 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 Looking toward septic tank Norwesco poly septic tank / inlet tee Outlet tee with effluent filter (risers not installed at the time of our inspection Distribution box Distribution pipes to trenches ARC chambers View of chamber trenches with inspection ports View of distribution box looking toward septic tank Garfield County Public Health Garfield County Public Health 2014 Blake Ave. Glenwood Springs, CO 81601 Phone: (970) 945-6614 ext. 8150 Permit Number SEPT-7014 OWTS PERMIT KEEP AVAILABLE AT PROJECT SITE Permit Type X New X Repair X Remodel/addition X Tank only Issue Date 08 13 2021 Expiration Date 08/13/2022 For inspections, call: 970-945-6614 ext. 8150 and call the Design Engineer, if applicable Project Address: 124 Juniper Drive, Glenwood Springs, CO 81601 Parcel No.: 218536312001 Owner Name: Glenn Beaton Owner Phone: (720) 299-7478 Designed By: CBO Septic Consulting, Inc. Contractor: Ridge Runner Construction Designer Phone: (970) 309-5259 Contractor Phone: (970) 945-5543 Number of Bedrooms: 5 Minimum Tank Capacity: 1,500-gallon Minimum Absorption: 700 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 July 12, 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, with the potential for a 1-bedroom addition. The 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 720 ft' of STA. The new STA will consist of four gravelless chamber trenches, each trench consisting of 15 chambers per trench (60 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 instal led 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. A 08/13/2021 Issued By: Garfield County Environmental Health Department Date Garfield County Public Health Department – working to promote health and prevent disease   Public Health Glenn Beaton  2001 Lincoln Street Unit 2513  Denver, CO 80202  Via email: gkbdenver@gmail.com    Subject: Final Acceptance Letter    124 Juniper Lane  Carbondale, CO 81623  OWTS Permit #: SEPT‐7014    September 1, 2022    Glenn,    On August 23, 2022, we visited the residence under construction at 124 Juniper Lane near  Carbondale in Garfield County, Colorado to observe the OWTS installation pursuant to OWTS Permit #  SEPT‐7014. At the time of our site visit, the contractor had installed the new sewer line, the new  cleanout adjacent to the residence, the new 1,500‐gallon two‐compartment septic tank, the new  effluent line, the new distribution box, and the four gravelless chamber trenches. The septic tank and  distribution box were installed level, with access brought to grade. The chamber trenches were level,  with 12 ARC 36 chambers per trench (48 chambers total, 720 ft2). 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. 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  SHEET 1 OF 1 DRAWN CHECKED QA MFG APPROVED Todd Bolzer 5/8/2012 DWG NO TITLE 1500 GALLON LOW PROFILE SEPTIC TANK - IAPMO SIZE B SCALE: 1/16 NORWESCO, INC., ST. BONIFACIUS, MN REV REVISION HISTORY ZONE REV DESCRIPTION DATE APPROVED 40 6 MATERIAL: HIGH-DENSITY POLYETHYLENE WALL THICKNESS: TANK WALL - .250" DIVIDER WALL - .19" LIQUID LEVEL 971 4 481 2 20" LID DIVIDER WALL OUTLET INLET 69 NORWESCO, INC. ST. BONIFACIUS, MN 1500 GALLON CAPACITY MAX. EARTH COVER 3.0 FT SERIAL NUMBER EMBOSSED HERE CAN BE REFERENCED TO THE DATE OF MANUFACTURE 4" INLET1 11 20 3 81 2 4" DIAMETER PASS-THROUGH HOLE IN PARTITION 233 4 1571 4 (external dimension) 1563 4 (internal dimension) 11 14 2 26 OPERATING VOLUME: PRIMARY COMPARTMENT: 1006 GALLONS OPERATING VOLUME: SECONADARY COMPARTMENT: 498 GALLONS CT APPROVED EFFLUENT FILTER 4043 ADS, Inc. Drainage Handbook Specifications  1-42 © ADS, Inc., November 2022 ADS ARC TM SEPTIC LEACHING CHAMBER SPECIFICATIONS Scope This specification describes the Arc chamber units for use in onsite wastewater disposal applications. Chamber Requirements Arc chambers are manufactured from high-density polyethylene with an open bottom, solid top and louvered sidewalls. Sidewall louvers shall be designed to minimize soil intrusion. Chamber shall meet the load rating of H-10 (16,000 lb per axle) with a minimum of 12 inches of cover when tested in accordance with IAPMO PS 63 and installed in accordance with manufacturers installation procedures. Chamber Connection Each chamber shall interlock with an integral articulating joint. Articulating joints shall have a free range of horizontal rotation of 20 degrees, with a maximum of 10 degrees in either direction. Articulating joint shall be constructed by placing the dome with engaging knuckle of the incoming chamber over the post end of the previously-installed chamber. Material Properties Each chamber shall be manufactured from high-density polyethylene as defined and described in IAPMO PS 63. Installation Installation shall be in accordance with ADS installation procedures as well as all state and local health department regulations. Arc 18 Arc 24 Arc 36 Arc 36 HC Arc 36 LP Length (A) 67 in 67 in 63 in 63 in 63 in Repeat Length (E) 60 in 60 in 60 in 60 in 60 in Side Wall Height (B) 7.7 in 7.5 in 7.13 in 10.75 in 5.5 in Overall Height (C) 12 in 12 in 13 in 16 in 8 in Overall Width (D) 16 in 22.5 in 34 in 34 in 34 in Capacity 3.42 cu ft (25.6 gal) 5.02 cu ft (37.5 gal) 8 cu ft (60.1 gal) 10.7 cu ft (80 gal) 5.80 cu ft (43.4 gal) Pallet Quantity 135 chambers 120 chambers 70 chambers 60 chambers 60 chambers Truck Load Quantity* 16 pallets 16 Pallets 24 Pallets 24 Pallets 24 Pallets *End Caps may reduce truck load pallet quantity. B D C A E POST END WITH RECEIVING AREA DOME END WITH "KNUCKLE" 832‐R‐13‐002