HomeMy WebLinkAbout11 Walter Rd - 246511301001Work Classification: ReplacePermit 11 Walter RD Basalt CO 81621- Address Owner Information Permit Status: Active Project Address 246511301001 Permit Type: OWTS Permit Permit NO. OWTS-7-15-13022 Expires: 11/27/2015 Issue Date: 7/30/2015 Parcel No. 11 WALTER RD Private Wastewater System Environmental Health Department P.O. Box 179 500 Broadway Eagle, CO 81631-0179 Phone: (970)328-8755 Fax: (970)328-8788 Phone: (970)927-3502 Cell: Inspection For Inspections call: (970) 328-8755 Inspections: IVR PhoneEngineer(s) (970)309-5259All Service Septic, LLC Contractor(s)Phone Primary ContractorLicense Number D & D Septic Services, LLC (970)328-0174 Yes41-15 C8-15 ANNE CLAPPER Permitted Construction / Details: Install the OWTS exactly as depicted in the All Service Septic, LLC design report signed, stamped and dated July 2, 2015 by Richard H. Petz, PE. The system consists of the installation of a new state approved 1,250 gallon, two compartment septic tank with a screened effluent pump vault with pump installed in the second compartment; and a 12' X 37.5' (450sq.ft.), 3' deep, pressure dosed unlined sand filter. The system is designed to serve a three bedroom home. Be sure to install risers on the septic tank to have access at or above grade. The existing tank must be abandoned in accordance with WQCC Regulation 43.9 (C.). Irrigation above the new soil treatment must be restricted in accordance with WQCC Regulation 43.8 (I.). Contact the design engineer to conduct all inspections necessary to certify the installation and to prepare the as-built drawings. System certification along with as-built drawings, photos and documentation of proper tank abandonment is required to be submitted to, and approved by, Eagle County Environmental Health prior to using the replacement system. Issued by: Environmental Health Department, Eagle County, CO July 31, 2015 Date Customer Copy Ray Merry CONDITIONS: 1. THIS PERMIT EXPIRES BY TIME LIMITATION AND BECOMES NULL AND VOID IF THE WORK AUTHORIZED BY THE PERMIT IS NOT COMMENCED WITHIN 120 DAYS OF ISSUANCE, OR BEFORE THE EXPIRATION OF AN ASSOCIATED BUILDING PERMIT 2. ALL INSTALLATIONS MUST COMPLY WITH ALL REQUIREMENTS OF THE EAGLE COUNTY INDIVIDUAL SEWAGE DISPOSAL SYSTEM REGULATIONS ADOPTED PURSUANT TO AUTHORITY GRANTED IN C.R.S. 25-10-101, et seq., AS AMENDED 3. THIS PERMIT IS VALID ONLY FOR CONNECTION TO STRUCTURES WHICH HAVE FULLY COMPLIED WITH COUNTY ZONING AND BUILDING REQUIREMENTS. CONNECTION TO, OR USE WITH ANY DWELLING OR STRUCTURE NOT APPROVED BY THE ZONING AND BUILDING DEPARTMENTS SHALL AUTOMATICALLY BE A VIOLATION OF A REQUIREMENT OF THE PERMIT, AND WILL RESULT IN BOTH LEGAL ACTION AND REVOCATION OF THE PERMIT 4. CHAPTER IV, SECTION 4.03.29 REQUIRES ANY PERSON WHO CONSTRUCTS, ALTERS OR INSTALLS AN INDIVIDUAL SEWAGE DISPOSAL SYSTEM TO BE LICENSED Work Classification: ReplacePermit 11 Walter RD Basalt CO 81621- Address Owner Information Permit Status: Active Project Address 246511301001 Permit Type: OWTS Permit Permit NO. OWTS-7-15-13022 Expires: 11/27/2015 Issue Date: 7/30/2015 Parcel No. 11 WALTER RD Private Wastewater System Environmental Health Department P.O. Box 179 500 Broadway Eagle, CO 81631-0179 Phone: (970)328-8755 Fax: (970)328-8788 Phone: (970)927-3502 Cell: Inspection For Inspections call: (970) 328-8755 Inspections: IVR PhoneEngineer(s) (970)309-5259All Service Septic, LLC Contractor(s)Phone Primary ContractorLicense Number D & D Septic Services, LLC (970)328-0174 Yes41-15 C8-15 ANNE CLAPPER Permitted Construction / Details: Install the OWTS exactly as depicted in the All Service Septic, LLC design report signed, stamped and dated July 2, 2015 by Richard H. Petz, PE. The system consists of the installation of a new state approved 1,250 gallon, two compartment septic tank with a screened effluent pump vault with pump installed in the second compartment; and a 12' X 37.5' (450sq.ft.), 3' deep, pressure dosed unlined sand filter. The system is designed to serve a three bedroom home. Be sure to install risers on the septic tank to have access at or above grade. The existing tank must be abandoned in accordance with WQCC Regulation 43.9 (C.). Irrigation above the new soil treatment must be restricted in accordance with WQCC Regulation 43.8 (I.). Contact the design engineer to conduct all inspections necessary to certify the installation and to prepare the as-built drawings. System certification along with as-built drawings, photos and documentation of proper tank abandonment is required to be submitted to, and approved by, Eagle County Environmental Health prior to using the replacement system. Office Copy July 31, 2015 Issued by: Environmental Health Department, Eagle County, CO Date Ray Merry CONDITIONS: 1. THIS PERMIT EXPIRES BY TIME LIMITATION AND BECOMES NULL AND VOID IF THE WORK AUTHORIZED BY THE PERMIT IS NOT COMMENCED WITHIN 120 DAYS OF ISSUANCE, OR BEFORE THE EXPIRATION OF AN ASSOCIATED BUILDING PERMIT 2. ALL INSTALLATIONS MUST COMPLY WITH ALL REQUIREMENTS OF THE EAGLE COUNTY INDIVIDUAL SEWAGE DISPOSAL SYSTEM REGULATIONS ADOPTED PURSUANT TO AUTHORITY GRANTED IN C.R.S. 25-10-101, et seq., AS AMENDED 3. THIS PERMIT IS VALID ONLY FOR CONNECTION TO STRUCTURES WHICH HAVE FULLY COMPLIED WITH COUNTY ZONING AND BUILDING REQUIREMENTS. CONNECTION TO, OR USE WITH ANY DWELLING OR STRUCTURE NOT APPROVED BY THE ZONING AND BUILDING DEPARTMENTS SHALL AUTOMATICALLY BE A VIOLATION OF A REQUIREMENT OF THE PERMIT, AND WILL RESULT IN BOTH LEGAL ACTION AND REVOCATION OF THE PERMIT 4. CHAPTER IV, SECTION 4.03.29 REQUIRES ANY PERSON WHO CONSTRUCTS, ALTERS OR INSTALLS AN INDIVIDUAL SEWAGE DISPOSAL SYSTEM TO BE LICENSED October 12, 2015 Anne Clapper 011 Walter Rd. Basalt, CO 81621 Aaclapper8@gmail.com RE: Final approval of septic permit OWTS-7-15-13022; Tax parcel #246511301001; Property location: 11 Walter Rd., Basalt Area Anne: This letter is to inform you that the above-referenced septic permit has been inspected and finalized. This permit was approved and sized for a 3 bedroom dwelling. Additional information about the maintenance your septic system needs as well as information about private wells can be accessed through web site links provided on the Environmental Health Department’s home page at http://www.eaglecounty.us/envHealth/ Be aware that changes in the use of your property or alterations of your building may require commensurate changes to, or relocation of, your septic system. Landscape features, trees with tap roots, irrigation systems and parking areas above the drain field can cause premature system failure. It is equally important that you notice and immediately repair dripping faucets and hissing toilets as this will certainly cause the system to fail. By following a few simple guidelines, like avoiding grease or other additives down the drain and making sure your septic tank is on a pumping schedule, your system has been designed to last for many years. If you have any questions regarding this information, please contact us at (970) 328-8755 and reference the OWTS septic permit number. Sincerely, Terri Vroman Administrative Technician IV cc: OWTS electronic permit folder Energov electronic file DEPARTMENT OF ENVIRONMENTAL HEALTH (970) 328-8755 FAX: (970) 328-8788 TOLL FREE: 800-225-6136 www.eaglecounty.us RAYMOND P. MERRY, REHS Director October 4, 2015 Project No. C1160 Anne Clapper Aaclapper8@gmail.com Onsite Wastewater Treatment System (OWTS) Installation Observations 11 Walter Road Eagle County, Colorado Permit Number OWTS-7-15-13022 Anne, ALL SERVICE septic, LLC observed the installation of the onsite wastewater treatment system (OWTS) on August 9, 10, and 12, 2015 for the subject property. D&D Septic Services installed the system. The existing OWTS was property abandoned in-place. A new, 1250-gallon, two-compartment septic tank with an Orenco® Biotube pump vault and PF3005 pump in the second compartment was installed. Valley Precast personnel performed start up on the pump system. The control panel was installed within line of sight of the septic tank. The STA consists of an over-excavated 12-foot by 37.5-foot area. Over-excavation extended the entire depth of the clay layer, to the base of the very gravelly sand horizon. Three feet of sand filter material was placed in the over-excavated area. The over-excavated area was inspected and approved on August 9, 2015. Effluent is pressure distributed to the unlined (open bottom) sand filter through 1.5-inch diameter Schedule 40 pump line. This pipe had a minimum of 1% grade for proper drain back into the septic tank after each dose. A level manifold with 1.5-inch diameter pipe connects to 1.25-inch diameter laterals with 1/8-inch orifice holes facing down, spaced 2-feet on center. Each lateral ends in a 90-degree sweeping ell facing up with a ball valve in a 10-inch valve box, accessible at grade. One inspection port was installed at each corner of the STA. 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. Over-excavated area Placement of sand filter material Sand filter with gravel on top Permit displayed on site Trench for sewer line to tank Tank installation View of septic tank and pump chamber with riser View of inlet pipe Inlet tee With risers Pump line to STA Control panel Pump chamber Distribution pipe installation Separation fabric Tank abandonment Final cover 832‐R‐13‐002 July 2, 2015 Project No. C1160 Anne Clapper Aaclapper8@gmail.com Subsurface Investigation and Onsite Wastewater Treatment System Design 3-Bedroom Residence 11 Walter Road Eagle County, Colorado Anne, ALL SERVICE septic, LLC performed a subsurface investigation and completed an onsite wastewater treatment system (OWTS) design for the subject residence. The 1.8-acre property is located outside of Basalt, in an area where OW TSs and wells are necessary. The legal description of the property is Lot 1, Dreager Subdivision. SITE CONDITIONS A 3-bedroom, single-family residence presently exists and is utilizing an existing OWTS. The existing soil treatment area (STA) is experiencing problems. After some investigation, it appears the gravelless chambers have collapsed. The existing STA will not be able to be salvaged and must be replaced. The existing septic tank is intact, but will also be replaced as part of the overall design. Inlet and outlet tees Page 2 Collapsed chambers Heavy clay backfill over chambers The property is relatively flat, sloping slightly to the north toward the Roaring Fork River. The area of the proposed STA is an irrigated grass yard. An irrigation ditch runs along the west property boundary. This ditch will be greater than 50 -feet from any OWTS component. The residence is served by a shared subdivision well, located on a neighboring property. This well is located greater than 100-feet from the proposed STA and greater than 50-feet from the proposed septic tank. SUBSURFACE The subsurface was investigated on June 11, 2015 by digging two soil profile test pit excavations (Test Pits). A visual and tactile soil analysis was completed by Carla Ostberg at the time of excavation.1 The materials encountered in the Test Pit #1 consisted of dark brown, moist, clay to 3-feet, underlain by medium brown, moist, very gravelly sand to a maximum depth explored of 7.0-feet. The below the clay layer have a single grain structure shape, a strong structure grade, and loose consistence. No bedrock or groundwater was encountered. The materials encountered in Test Pit #2 consisted of dark brown, moist, clay to 4-feet, underlain by medium brown, moist, very gravelly sand to a maximum depth explored of 7.0-feet. The below the clay layer have a single grain structure shape, a strong structure grade, and loose consistence. No bedrock or groundwater was encountered. Soils below the clay layer are classified as Soil Type 0, Sand with greater than 35% rock. The clay layer must be over-excavated to the very gravelly layer and replaced with ASTM C33 concrete sand. A long term acceptance rate (LTAR) of 1.0 gallons per square foot, will be used to design the OWTS, in accordance requirements for an unlined (open bottom) sand filter presented in Eagle County On-Site Wastewater Treatment System Regulations, adopted May 13, 2014. 1 Carla Ostberg holds a Certificate of Attendance and Examination from the CPOW Visual and Tactile Evaluation of Soils Training. Page 3 Test Pits observed June 11, 2015 Test Pit #1 Clay horizon 0 – 3 feet in Test Pit #1 Test Pit #2 Very gravelly sand below 4 feet in Test Pit #2 DESIGN SPECIFICATIONS Design considerations for this OWTS included location of the ditch on the west property boundary, location of the exiting OWTS, and ease of installation for a cost-effective over-excavation. There was insufficient space between the driveway and existing STA to accommodate trenches. Considerations for the proposed STA to the west of the existing STA encroached on the required ditch setback. A buried electrical line also runs through this area. Over-excavation and sand replacement in a bed configuration is the most cost and space efficient design choice for this OWTS. The existing septic tank and OWTS will be abandoned in place. The septic tank must be collapsed and remaining void filled with gravel, sand, or compacted soil. A new, 1250-gallon, two-compartment septic tank with an Orenco® Biotube pump vault and PF3005 pump in the second compartment will be utilized. The septic tank may be either concrete or plastic and either choice must be on the Colorado Department of Public Health and Environment septic tank summary list (https://www.colorado.gov/pacific/sites/default/files/Accepted%20Septic%20Tanks.pdf). If a plastic septic tank is chosen, an Orenco® Biotube EasyPak pumping package must be utilized. Page 4 The control panel for the pump must be located in within line of sight of the septic tank. Floats must be set to dose approximately 80 gallons to the STA each pump cycle. The STA will consist of an over-excavated 12-foot by 37.5-foot area. Over-excavation must extend the entire depth of the clay layer, to the base of the very gravelly sand horizon. A minimum of 3-feet of sand filter material must be placed in the over-excavated area. Sand filter material must be clean, coarse sand, all passing a screen having four meshes to the inch. The sand must have an effective size between 0.25 and 0.60 mm. The uniformity coefficient must be 4.0 or less. Material meeting ASTM 33, for concrete sand, with one percent or less fines passing 200 mesh sieve may be used. Pipes used to disperse the effluent must be surrounded by washed coarse screened gravel or crushed stone. All of the gravel or stone must pass a 2 ½-inch screen and must be retained on a ¾-inch screen. Effluent will be pressure distributed to the unlined (open bottom) sand filter through 1.5-inch diameter Schedule 40 pump line. This pipe must have a minimum of 1% grade for proper drain back into the septic tank after each dose. A level manifold with 1.5-inch diameter pipe connects to 1.25-inch diameter laterals with 1/8-inch orifice holes facing down, spaced 2-feet on center. Each lateral will end in a 90- degree sweeping ell facing up with a ball valve in a 10-inch valve box, accessible at grade (see flushing assembly detail 4/W2.0). One inspection port must be installed at each corner of the STA. Inspection ports may be capped and installed below grade in a sprinkler box. The component manufacturers are typical of applications used by contractors and engineers in this area. Alternatives may be considered or recommended by contacting our office. Construction must be according to Eagle County On-Site Wastewater Treatment System Regulations, the OWTS Permit provided by Eagle County Environmental Health Department, and this design. REVEGETATION REQUIREMENTS An adequate layer of good quality topsoil capable of supporting revegetation shall be placed over the entire disturbed area of the OWTS installation. A mixture of native grass seed that has good soil stabilizing characteristics (but without taproots), provides a maximum transpiration rate, and competes well with successional species. No trees or shrubs, or any vegetation requiring regular irritation shall be placed over the area. Until vegetation is reestablished, erosion and sediment control measures shall be implemented and maintained on site. The owner of the OWTS shall be responsible for maintaining proper vegetation cover. OPERATION INFORMATION AND MAINTENANCE The property owner shall be responsible for the operation and maintenance of each OWTS servicing the property. The property owner is responsible for maintaining service contracts for manufactured units, alternating STAs, and any other components needing maintenance. Geo-fabrics or plastics should not be used over the STA. No heavy equipment, machinery, or materials should be placed on the backfilled STA. Livestock should not graze on the STA. Plumbing fixtures should be checked to ensure that no additional water is being discharged to OWTS. For example, a running toilet or leaky faucet can discharge hundreds of gallons of water a day and harm a STA. If an effluent filter or screen has been installed in the OWTS, we recommend this filter or screen be cleaned annually, or as needed. If the OWTS consists of a pressurized pump system, we recommend the laterals be flushed annually, or as needed. Page 5 The homeowner should pump the septic tank every two years, or as needed gauged by measurement of solids in the tank. Garbage disposal use should be minimized, and non-biodegradable materials should not be placed into the OWTS. Grease should not be placed in household drains. Loading from a water softener should not be discharged into the OWTS. No hazardous wastes should be directed into the OWTS. Mechanical room drains should not discharge into the OWTS. The OWTS is engineered for domestic waste only. ADDITIONAL CONSTRUCTION NOTES If design includes a pump, air release valves and weep holes must be installed to allow pump lines to drain to minimize risk of freezing. The pump shall have an audible and visual alarm notification in the event of excessively high water conditions and shall be connected to a control breaker separate from the high water alarm breaker and from any other control system circuits. The pump system shall have a switch so the pump can be manually operated. Excavation equipment must not drive in excavation of the STA due to the potential to compact soil. Extensions should be placed on all septic tank components to allow access to them from existing grade. Backfill over the STA must be uniform and granular with no material greater than minus 3-inch. INSTALLATION OBSERVATIONS ALL SERVICE septic, LLC must view the OWTS during construction. The OWTS observation should be performed before backfill, after placement of OWTS components. Septic tanks, distribution devices, pumps, dosing siphons, and other plumbing, as applicable, must also be observed. ALL SERVICE septic, LLC should be notified 48 hours in advance to observe the installation. LIMITS: The design is based on information submitted. If soil conditions encountered are different from conditions described in report, ALL SERVICE septic, LLC should be notified. All OWTS construction must be according to the county regulations. Requirements not specified in this report must follow applicable county regulations. The contractor should have documented and demonstrated knowledge of the requirements and regulations of the county in which they are working. Licensing of Systems Contractors may be required by county regulation. Please call with questions. Sincerely, ALL SERVICE septic, LLC Reviewed By: Carla Ostberg, MPH, REHS Pump Selection for a Pressurized System - Single Family Residence Project Clapper Residence / 11 Walter Road, Basalt, CO Parameters Discharge Assembly Size Transport Length Transport Pipe Class Transport Line Size Distributing Valve Model Max Elevation Lift Manifold Length Manifold Pipe Class Manifold Pipe Size Number of Laterals per Cell Lateral Length Lateral Pipe Class Lateral Pipe Size Orifice Size Orifice Spacing Residual Head Flow Meter 'Add-on' Friction Losses 1.25 45 40 1.50 None 5 9 40 1.25 3 35.5 40 1.25 1/8 2 5 None 0 inches feet inches feet feet inches feet inches inches feet feet inches feet Calculations Minimum Flow Rate per Orifice Number of Orifices per Zone Total Flow Rate per Zone Number of Laterals per Zone % Flow Differential 1st/Last Orifice Transport Velocity 0.43 54 23.4 3 1.1 3.7 gpm gpm % fps Frictional Head Losses Loss through Discharge Loss in Transport Loss through Valve Loss in Manifold Loss in Laterals Loss through Flowmeter 'Add-on' Friction Losses 3.8 1.5 0.0 0.2 0.1 0.0 0.0 feet feet feet feet feet feet feet Pipe Volumes Vol of Transport Line Vol of Manifold Vol of Laterals per Zone Total Volume 4.8 0.7 8.3 13.7 gals gals gals gals Minimum Pump Requirements Design Flow Rate Total Dynamic Head 23.4 15.6 gpm feet 0 5 10 15 20 25 30 35 40 0 50 100 150 200 250 300 Net Discharge (gpm) PumpData PF3005 High Head Effluent Pump 30 GPM, 1/2HP 115/230V 1Ø 60Hz, 200V 3Ø 60Hz PF3007 High Head Effluent Pump 30 GPM, 3/4HP 230V 1Ø 60Hz, 200/460V 3Ø 60Hz PF3010 High Head Effluent Pump 30 GPM, 1HP 230V 1Ø 60Hz, 200/460V 3Ø 60Hz PF3015 High Head Effluent Pump 30 GPM, 1-1/2HP 230V 1Ø 60Hz, 200/230/460V 3Ø 60Hz Legend System Curve: Pump Curve: Pump Optimal Range: Operating Point: Design Point: ® 1-800-348-9843 www.orenco.com www.vericomm.net Orenco Systems Incorporated Changing the Way the Wo rld Does Wastewater® • A complete system in one box • Drops right into a pump tank • All parts designed to work together • Vault keeps out sludge, but allows pumping to nearly the bottom of the tank to meet large reserve capacity requirements • Turbine pump lasts four times longer than centrifugal pumps and is war- rantied for five years • Turbine pump with- stands the frequent starts and stops that timed dosing requires • Patented Biotube® filter has 14 ft2 of filter area • Snap-in float stem and adjustable float collars keep floats securely in position, speeding installa- tion and servicing • Built of molded ABS and PVC for long life • Demand dosing and timed dosing sys- tems available • Easy to select, install, and maintain • To order your free EasyPak Design Aid CD-ROM, call Orenco at 800-348- 9843. Or you can download every- thing on the CD by visiting the home page of orenco.com and clicking on “New Products" or the EasyPak graphic. Biotube ® EasyPak ™ Pump Package Applications Orenco’s Biotube® EasyPak™ Pump Package is the first pump package designed specifically for use in pump tanks to filter and pump effluent to dispersal.* It includes the following components: • EasyPak ™ pump vault • 4-inch turbine effluent pump • Biotube ® filter cartridges (3) • Flow inducer • Float switches with sliding collars • Discharge plumbing assembly • Splice box • Control panel (demand dosing or timed dosing) The kit saves time for the installer and protects the drainfield from clog- ging. Choose a system for demand dosing (to a gravity drainfield) or timed dosing (to a pressurized drainfield or mound). * Patent pending Standard Features & Benefits The EasyPak™ Pump Package replaces “pump-on-a-block” systems with a complete package that’s easy to install and maintain. APS-PTV-1 Rev. 1.2, © 05/09 Orenco Systems®, Inc. Combining components for filtration, pumping, and control, the EasyPak™ Pump Package installs quickly in any pump tank (purchased separately) and allows pump- ing to nearly the bottom of the tank. Model Code for Ordering Biotube® EasyPak™ Components To Order Call your nearest Orenco Systems®, Inc. distributor. For nearest distributor, call Orenco at (800) 348-9843, or go to orenco.com and click on “Distributor Locator.” Float switches with collars • Demand-dosing systems: high-level and on/off • Timed-dosing systems: high-level, timer off, and redundant off Control panel • Demand-dosing systems: Simplex electro- mechanical panel • Timed-dosing systems: Choice of analog or digital timer panel Splice box* 4-in. turbine effluent pump (10, 30, or 50 gpm) Distributed By: Pump flow rate (nominal): 10 = 10 gpm (0.6 L/sec) with ¼-in. (6-mm) flow control 30 = 30 gpm (1.9 L/sec) 50 = 50 gpm (3.2 L/sec) Biotube EasyPak™ pump vault, 15-inch (380-mm) vault Panel: DD = Demand dosing TDA = Timed dosing, analog TDD = Timed dosing, digital Discharge assembly: Blank = Standard DB = Drainback CW = Cold weather BEP EasyPak™ vault Flow inducer Biotube® filter cartridges (3) Float tree Float tree bracket Discharge plumbing assembly (Cold-weather and drainback discharge assemblies also available) *External splice box also available