The URL can be used to link to this page

Home My WebLink AboutOWTS Installation Observations 02.17.19 February 17, 2019 Project No. C1315 Nona Niland nonaniland@me.com Onsite Wastewater Treatment System (OWTS) Installation Observations 2331 CR 100 Garfield County, Colorado Permit Number SEPT-03-18-5421 Nona, ALL SERVICE septic, LLC observed the installation of the onsite wastewater treatment system (OW TS) on August 20 and October 25, 2108 for the subject property. Holmes Excavation installed the system. Only the system serving the main house was installed at this time. The system serving the future additional dwelling unit (ADU) was not installed. Prior to construction of the mounded sand filter, a soil profile test pit was excavated in the area of the proposed soil treatment area (STA) to verify assumptions used in the design were correct. The materials encountered in the Test Pit consisted of light brown sandy loam topsoil to 2-feet, underlain by light brown sandy loam with greater than 50% rock to a maximum depth explored of 5.0-feet. Groundwater was encountered in the bottom of the test pit and later filled to within 2.5-feet of native grade. We have estimated groundwater at 1-foot below grade for purposes of this design. Soils The installation included a new 1250-gallon, two-compartment concrete septic tank with an Orenco® Biotube Pump Vault and an Orenco® PF3005 pump in the second compartment of the septic tank. The pumping system was from the original system. The filter in the pump vault must be cleaned annually, or as needed. The septic tank was anchored with Deadmen because of the high seasonal groundwater table. Holmes Excavation performed start up of the pumping system. The control panel is located in the mechanical room under the stairs. Effluent is pressure dosed through a 1.5-inch diameter pump line to a mounded, 10’ x 45’ unlined sand filter. The excavation for the sand filter began approximately at native grade. A minimum of 2-feet of sand filter material was installed in the mound footprint. Washed concrete sand was utilized as the sand filter material. Laterals used to disperse the effluent were surrounded by washed coarse screened gravel. The manifold was 1.5-inches in diameter. Laterals were 1.5-inches in diameter with 5/32-inch diameter orifices facing down, spaced 3-feet on center. Orenco® Orifice Shields were installed on the laterals at each orifice. Laterals began 3-feet from the edges of the filter, with 2-feet between each lateral. Each 1.5-inch diameter lateral ends in a sweeping ell facing up with a ball valve for flushing. A soil separation fabric was placed over the gravel layer followed by approximately 1-foot of topsoil. The mound has a minimum 3:1 slope (horizontal:vertical) extending approximately 9-feet beyond the sand filter on all sides (with a total mound height of 3-feet above native grade). The OWTS was generally installed according to specifications. This observation is not a guarantee of workmanship and/or parts and materials. ALL SERVICE septic, LLC should be notified if changes are made to the OW TS 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 of the expertise of the installer, soil type, and weather conditions. Please call with questions. Sincerely, ALL SERVICE septic, LLC Reviewed By: Carla Ostberg, MPH, REHS Richard H. Petz, P.E. Excavation for tank filling up with groundwater Clean out Septic tank Anchoring Laterals set on gravel orifices Final grading septic tank lids Final cover over field View of mound (looking west) PERMIT KEEP AVAILABLE AT PROJECT SITE Project Address ____________________________________________ Parcel No. ________________________ Subdivision _________________________________ Lot _______ Section-Township-Range ____________ Owner Name ______________________________________________ Owner Phone _____________________ Owner Mailing Address _______________________________________________________________________ Contractor(s) ______________________________________________ Contractor Phone _________________ Work Description: Valuation _________________________________ Square Feet _______________________________ IMPORTANT: APPLICATION IS HEREBY MADE TO THE BUILDING OFFICIAL FOR A PERMIT SUBJECT TO THE CONDITIONS AND RESTRICTIONS SET FORTH ON THIS APPLICATION. PLEASE NOTE: Final inspection of the work authorized by this permit is required. A Certificate of Occupancy must be obtained prior to use and occupancy of new buildings and structures. A Building Permit becomes null and void if the authorized work is not commenced within 180 days of the date of issuance and if work is suspended or abandoned for a period of 180 days after commencement. Permit Type ____________________________________ Work Classification _____________________________ Issue Date ___________ Expiration Date ___________ PERMIT # Community Development Department 108 8th Street, Suite 401 Glenwood Springs, CO 81601 Phone (970) 945-8212 2/20/2019 36-07-88 Septic - ALT/ Repair 512-913-5405 Holmes Excavation Coffman Ranch Exemption 2331 CR 100 Carbondale, CO 81623 970-379-2245 Alteration/ repair to existing septic system Lot 2 SEPT-08-18-5421 239336400271 Alteration 8/24/2018 Nona Niland 2331 CR 100 832‐R‐13‐002