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Home My WebLink About151 Gray Rock Dr - 210926401003Work Classification:New 11222 MESA RUN LITTLETON CO 80125- AddressOwner Information Permit Status:Active Project Address 210926401003 Permit Type:OWTS Permit Permit NO.OWTS-4-18-18971 Expires:9/19/2018Issue Date:5/22/2018 Parcel No. 151 GRAY ROCK DR 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:(303)898-1884 Cell:(303)898-1884 Inspection For Inspections call:(970)328-8755 Inspections: IVR OWTS Final Inspection 095 PhoneEngineer(s) (303)565-4941JVA Consulting Engineers Contractor(s)Phone Primary ContractorLicense Number BEAUMONT EXCAVATING (970)390-9393 Yes24-18 Richard Stocking Permitted Construction /Details: Installation of the OWTS exactly as depicted in the JVA, Inc.design packet stamped, signed and dated April 18,2018 by Joshua J.McGibbon, PE.The OWTS is designed to serve a 5 bedroom residence. The system consists of a Valley Precast 1,500 gallon, single compartment tank (Model 1500T-1CP)with effluent screen and alarm placed on the outlet, followed by a 2,000 gallon Valley Precast 3 compartment recirculating/dose tank which will send wastewater to two, Advantex AX20 pods for nitrification using an Orenco PF 300512 pump.Nitrified effluent flows to the splitter valve (mode 3B)for recirculation to the 1,500 gallon tank for denitrification, then is dosed using an Orenco PF751012 to 1,500 square feet of soil treatment area (prior to adjusting 30%for using chambers)consisting of two beds of Infiltrator Quick 4 Plus standard chambers, each bed arranged in 4 rows of 11Infiltrator chambers as shown on the design drawing.The contractor must verify that the electrical components are covered under the electrical permit associated with the Orenco Vericom control panel and pump connections. Contact Eagle County Environmental Health and the design engineer well in advance of requesting inspections prior to backfilling any component of the OWTS.The design engineer is responsible for conducting all inspections necessary to certify the installation and assure functionality of the system. System certification, along with photos and a record drawing is required to be submitted to, and approved by, Eagle County Environmental Health prior to the use of the system or occupancy of the dwelling. Issued by:Environmental Health Department, Eagle County, CO May 23, 2018 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 4.03.29REQUIRES ANY PERSON WHO CONSTRUCTS, ALTERS OR INSTALLS AN INDIVIDUAL SEWAGE DISPOSAL SYSTEM TO BE LICENSED PAID $800 - CHK# 73013 0417/2018 excavation 178 alpine Ranch- Gypsum - 24-18 - 970-390-9393 bexic@mail.com July 12th, 2019 Mr. Richard Stocking 11222 Mesa Run Littleton, CO. 80125 RE: Final approval of the: Septic System Installation, OWTS-4-18-18971 Property location: 151 Gray Rock Drive – Eagle County Area. Mr. Stocking: This letter is to inform you that the above-referenced, OWTS-4-18-18971 permit, has been inspected and finalized. This OWTS permit was approved and sized to serve a five (5) bedroom residence. Additional information about the maintenance your septic system needs can be accessed through our website links, provided on the Environmental Health Department’s septic system resource page. 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 soil treatment area 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. If you have any questions regarding this information, please contact us at (970) 328-8755 and reference the OWTS septic permit number. Best Regards, Giovanna Harkay. Administrative Fiscal Tech IV Attachments: Certification Letter and Design – Septic System Flyer – Final Letter PUBLIC HEALTH & ENVIRONMENT (970) 328-8755 FAX: (970) 328-8788 Environment@eaglecounty.us RAYMOND P. MERRY, REHS Manager 7/11/19 July 11, 2019 Mr. Ray Merry, Director of Environmental Health Eagle County Environmental Health 500 Broadway Street Eagle, CO 81631 RE: Onsite Wastewater Treatment System Final Certification – 151 Gray Rock Drive, Lot 57 Dear Ray: The Onsite Wastewater Treatment System (OWTS permit number 4-18-18971) serving 151 Gray Rock Drive in Frost Creek has been installed by Beaumont Excavation and is ready for final certification from Eagle County Environmental Health. As part of the final approval process, JVA Inc. (JVA) conducted site visits and ensured that start-up was completed by the manufacturer’s representative (Valley Precast). After startup, JVA confirmed that the system is functioning and can be monitored remotely as required in the PUD. The final record drawings from JVA and construction photographs are provided as attachments. Please proceed with the closeout process for this OWTS permit. Sincerely, JVA, INCORPORATED By: ________________________ Kevin Tone, P.E., LEED AP President Enclosure: Attachment A – JVA Record Drawings Attachment B – Construction Photographs CC: Simon Farrell, JVA April 11, 2018 Mr. Ray Merry, REHS Director of Environmental Health PO Box 179 Eagle, CO 81631 RE: Frost Creek - Onsite Wastewater Treatment System Design – Lot 57, Eagle County, CO Dear Ray: JVA Inc. (JVA) has prepared a design of an onsite wastewater treatment system (OWTS) to serve Lot 57 within the Frost Creek PUD. JVA Inc. (JVA) is the designated engineer to process all OWTS permit applications within Frost Creek. JVA has prepared the OWTS design to be in general conformance with OWTS requirements of the PUD. The most recently reported sampling results from the Water Quality Monitoring and Mitigation Plan (dated December 4th, 2017) did not result in any exceedances of the water quality trigger limits. Please proceed with the permit review of this OWTS design. Sincerely, JVA, INCORPORATED By: _______________________ Simon Farrell, P.E. Project Manager By: ____________________ Josh McGibbon, P.E. Vice President Attachment A - OWTS design – Lot 57 Attachment B - Visual and Tactile Soil Evaluation Attachment C - Discharge pump calculations ATTACHMENT A – OWTS DESIGN – LOT ATTACHMENT B – VISUAL AND TACTILE SOIL EVALUATION April 18, 2018 Mr. Ray Merry, Director Eagle County Environmental Health 590 Broadway Eagle, CO 81631 RE: Frost Creek Lot 57 – Site and Soil Investigation Report for an Onsite Wastewater Treatment System (OWTS) JVA Job No. 2476.14c Dear Ray: Enclosed in this report are the results of the site and soil evaluation for Lot 57’s proposed OWTS located in Frost Creek, Colorado. This report provides all the necessary information to characterize the soils at the site to support the design of an OWTS including: results from the preliminary investigation, the site (reconnaissance) visit, and the soil evaluation. PRELIMINARY INVESTIGATION In preparation for a more efficient and informed site visit and soil evaluation, a preliminary investigation was conducted throughout the week of March 19 th, 2018. Site constraints; locations of septic tanks, advanced treatment system, and the soil treatment area (STA); and topographic features were found from previous topographic surveys and aerial imagery. Geotechnical investigations were performed by HP Geotech in October, 2002 across Frost Creek; this geotechnical investigation has been submitted to Eagle County. Profile hole A consists of a topsoil followed by a silt layer from 0.2 to 8 feet deep. Profile hole B consist of a topsoil followed by a silt layer from 0.2 to 2 feet, and a sandstone/siltstone layer from 2 to 8 feet deep. No groundwater was encountered in either profile holes. SITE VISIT AND SOIL EVALUATION A site visit and soil evaluation was conducted on March 23 rd, 2018 by James Cochran; James Cochran has passed the Colorado Professionals in Onsite Wastewater (CPOW) Soils Evaluation Course and Soils Evaluation Test, and deemed competent in visual and tactile evaluation of soils. The purpose of the site visit and soil testing was to identify the topography, landscape position, vegetation and site constraints for the proposed OWTS, and to conduct a visual and tactile soil evaluation of the underlying soils of the STA for suitability and sizing. The topography varies throughout the site with steeper areas dominating the northern and eastern sides of the property, and gentler slopes on the south-west corner of the property. The dominant vegetation at the proposed OWTS consists of native grasses and sage. Site Constraints listed in Table 7-1 of the Colorado Department of Public Health & Environment (CDPHE) Regulation 43 are shown in the Permit Documents, which include a property line. Frost Creek Lot 57 OWTS Site and Soil Investigation 4/18/18 2 of 2 Two soil profile holes were excavated using a tracked excavator in the approximate locations identified in the Permit Documents. As seen in Table 1below, the soil texture, soil structure shape, soil structure grade, and resulting soil type were classified throughout the soil profile horizon for each profile hole. For each soil profile hole, the top of the soil horizon corresponded to a Loamy Sand topsoil and Silt Loam at the bottom of the soil horizon. Soil Type 2A (Silt Loam) was identified as the soil type for the soil evaluation and used for the STA design; design calculations are included in the Permit Documents. No redoximorphic features, indicating seasonally high groundwater, were observed in either profile hole. Figures 1 through 4 below show the soil profile hole and horizon. Table 1 – Visual and Tactile Soil Results Profile Hole Depth (ft.)Soil Texture Soil Structure Type Soil Structure Grade Soil Type 1 0 – 1 Loamy Sand Single Grain 0 (Structureless) 1 1 - 8 Silt Loam Massive 1 (Weak) 2A 2 0 – 1 Loamy Sand Single Grain 0 (Structureless) 1 1 - 8 Silt Loam Massive 1 (Weak) 2A Figure 1 – Profile Hole One Figure 2 – Profile Hole One Soil Horizon Figure 3 – Profile Hole Two Figure 4 – Profile Hole Two Soil Horizon Sincerely, JVA, INCORPORATED By: ____________________________________ Simon Farrell, P.E. Senior Project Engineer ATTACHMENT C – DISCHARGE PUMP CALCULATIONS Pump Selection for a Pressurized System - Single Family Residence Project Frost Creek Lot OWTS 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 Pump Off to High Point 2.00 160 40 2.00 None -4 20 40 1.50 4 100 40 1.50 1/8 2.5 5 None 6 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 0.43 164 72.2 4 6.8 6.9 gpm gpm % fps Frictional Head Losses Loss through Discharge Loss in Transport Loss through Valve Loss in Manifold Loss in Laterals Loss through Flowmeter Pump Off to High Point 10.4 12.6 0.0 1.5 0.8 0.0 6.0 feet feet feet feet feet feet feet Pipe Volumes Vol of Transport Line Vol of Manifold Vol of Laterals per Zone Total Volume 27.9 2.1 42.3 72.3 gals gals gals gals Minimum Pump Requirements Design Flow Rate Total Dynamic Head 72.2 32.3 gpm feet 0 20 40 60 80 100 0 20 40 60 80 100 Net Discharge (gpm) PumpData PF7515 High Head Effluent Pump 75 GPM, 1HP 230V 1Ø 60Hz Legend System Curve: Pump Curve: Pump Optimal Range: Operating Point: Design Point: