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Home My WebLink AboutOWTS Installation Observations 11.16.2022CBO Inc. 129 Cains Lane Carbondale, CO 81623 970.309.5259 carla.ostberg@gmail.com November 16, 2022 Project No. C1637 Nate Kaegebein natekaegebein@kfhomebuilding.com Onsite Wastewater Treatment System (OWTS) Installation Observations 19 Silver Spruce Drive Garfield County, Colorado Permit Number SEPT-09-21-7132 Nate, CBO Inc. observed the installation of the onsite wastewater treatment system (OWTS) on August 10 and September 12, 2022 for the subject property. O’Neill Heating and Plumbing, LLC installed the system. The system had been backfilled prior to our first inspection. Photos were provided by the installer and are enclosed. The OWTS design is based on 5-bedrooms. An average daily wastewater flow of 600 GPD was used. The 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 2000-gallon, two-compartment Valley Precast concrete septic tank with an Orenco® Biotube Pump Vault and an Orenco® PF3005 pump in the second compartment of the septic tank. The septic tank was anchored with Deadmen because of the high seasonal groundwater table. The floats were set to dose approximately 70 gallons each pump cycle. The control panel for the pump is located within line of sight of the septic tank. Valley Precast out of Buena Vista was contracted for start-up of the pumping system. Effluent is pressure dosed through a 1.5-inch diameter pump line to a mounded, unlined sand filter. The sand filter is divided into two zones, each 10’ x 37.5’. Initial measurements at the time of our first site visit showed the laterals were slightly short, and efforts were made to extend the laterals to better achieve the measurements in the design documents. The excavation for the sand filter began 1.0-foot below native grade. A minimum of 3-feet of sand filter material was installed in the over-excavated footprint, resulting in 2- feet of sand filter material extending above native grade. A gradation of the sand media is enclosed. Effluent is pumped through a 1.5-inch diameter pump line from the pump chamber to an Orenco® automatic distributing valve (ADV), model 6402. The ADV was placed at a high point of each zone in an insulated riser with access from grade. Level, 1.5-inch diameter manifolds connect two laterals in each zone. Laterals were 1.5-inches in diameter with 5/32-inch diameter orifices facing down, spaced 2.5-feet on center, installed on the GeoMat™ with the filter fabric over the laterals. Laterals were placed 2-feet from the edges of the bed leaving 3’ between center of laterals. Three 39” wide GeoMat™ were placed on the 10-foot wide bed. Each 1.5-inch diameter lateral ends in a sweeping ell facing up with a ball valve for flushing. Laterals were covered by the gray Geomat™ soil separation fabric and at least 1-foot of topsoil or other suitable soil able to support vegetative growth. Inspection ports were placed into the sand filter material on each corner of the beds. The mound has a minimum 3:1 slope (horizontal:vertical). 11-17-2022 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. Reviewed By: Carla Ostberg, MPH, REHS Romeo Baylosis, P.E. Tank anchored with Deadmen Septic tank set and anchored. Sewer line from house to septic tank Pump line from tank to ADV ADV Conduit for electrical Pump line from tank to STA Building sand mound GeoMat set on sand Laterals under GeoMat (laterals and flushing valves extended beyond initial construction) End of laterals (extended) Flushing valves at the end of laterals Flushing valves Backfill over mound Laterals extended Flushing valves Point where laterals were extended 08/31/2022 To Whom It May Concern: We have been to the following site(s): 19 Silver Spruce Dr, Carbondale We have verified that the system was started properly. The System went through several cycles with no issues. Sincerely, Scott McIntosh Service Manager 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: 19 Silver Spruce Drive, Carbondale, CO 81623 Parcel No.: _239336219001 Owner Name: Nate and Mindy Kaegebein Owner Phone: (970) 379-6228 Designed By: CBO Septic Consulting Designer Phone: (970) 309-5259 Contractor: Kaegebein Fine Homebuilding Contractor Phone: (970) 379-6228 Number of Bedrooms: 5 Minimum Tank Capacity: 1,500-gallon Minimum Absorption: 750 ft 2 OWTS PERMIT KEEP AVAILABLE AT PROJECT SITE Permit Number _SEPT-7132_______________________________ Permit Type X New X Repair X Remodel/addition X Tank only Issue Date _10/05/2021____________________ Expiration Date_10/05/2022_________________ 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 August 11, 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 4-bedroom residence and future 1-bedroom addition. The system will consist of a new, two-compartment minimum 2,000-gallon septic tank set level with access to grade and a high-head pump in the second compartment of the tank. Effluent will be pressure dosed to an automatic distributing valve set level with access to grade at the high point of the system that will distribute effluent to 760 ft2 of STA. The new STA will consist of a mounded three feet deep unlined sand filter constructed with secondary sand media in two zones. Each zone will be 37.5 feet long by 10 feet wide, with three laterals per zone. Laterals will be encased in GeoMat placed directly on the secondary sand media. Laterals and pump lines will consist of 1.5-inch diameter Schedule 40 PVC. Distribution laterals will have 5/32-inch orifices facing down, every 2.5-feet on-center. The laterals will end in a sweeping ell with a ball valve to allow for flushing of the laterals. Inspection ports are to be installed at corner of each bed. 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. 10/05/2021 Issued By: Garfield County Environmental Health Department Date 832‐R‐13‐002