Loading...
HomeMy WebLinkAbout100 Metheny Wy - 210935401007Environmental Health Department P.O. Box 179 500 Broadway Eagle, CO 81631-0179 Phone: (970) 328-8730 Fax: (970) 328-7185 Permit Permit No. OWTS-019416-2020 Permit Type: OWTS Permit Work Classification: New Permit Status: Active Issue Date: 8/24/2020 Expires: 12/22/2020 On-Site Wastewater Treatement System Project Address Parcel Number 100 METHENY WY, EAGLE AREA,210935401007 Owner Information Address John Stafford 701 S Elizabeth ST Denver, CO Phone: Cell: (612) 889-4247 Email: stafford.johnh@gmail.com Inspections: For Inspections Call: (970) 328-8755 and call the Design Engineer Engineer Phone Email JVA Inc, Simon Farrell (303) 444-1951 sfarrell@jvajva.com Contractor License Number Phone Email Defina Construction, INC gary@definaconstruction.c om (970) 376-6702OWTSPL-000081-20 20 Permitted Construction / Details: Install the OWTS exactly as depicted in the JVA, Inc design stamped, signed, and dated June 26, 2020 by Simon A. Farrell, PE. The system is designed to serve a 5 bedroom single family residence. The system consists of a Valley Precast 1,250 gallon, single compartment tank 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 AX-20 pods for nitrification using an Orenco PF 500512 pump. Nitrified effluent flows to the splitter valve (mode 3B) for recirculation to the 1,250 gallon first tank for denitrification then is dosed using an Orenco PF 751012 pump to 960 square feet of soil treatment area (STA). The STA consists of one bed arranged with of four rows of 20 Infiltrator Quick 4 Plus Standard chambers for a total of 80 chambers. Distribution lateral details, along with orifice size, spacing and orientation are on the design drawing. The contractor must verify that all electrical components and inspections are covered under the electrical permit associated with the Orenco Vericom control panel (Model VCOM-AX20B2) and pump connections. The alarm must be connected to a separate circuit. Additional pump details are on the design drawing. Advantex systems must conform to the CDPHE technology approval letter dated May 1, 2018. 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. THIS PERIMT 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 Issued by: Environmental Health Department, Eagle County, CO Claire Lewandowski Date August 24, 2020 CONDITIONS 1. 2.ALL INSTALLATIONS MUST COMPLY WITH ALL REQUIREMENTS OF THE EAGLE COUNTY PUBLIC HEALTH AGENCY ON-SITE WASTEWATER TREATMENT SYSTEM REGULATIONS ADOPTED PURSUANT TO AUTHORITY GRANTED IN CR.S. 25-10-101, et seq., AS AMENDED 3.THIS PERMIT IS VALID ONLY FOR PERFORMING WORK ON OWTS ASSOCIATED WITH 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 4.1.6(A)(1) EAGLE COUNTY PUBLIC HEALTH AGENCY ON-SITE WASTEWATER TREATMENT SYSTEM REGULATIONS REQUIRES ANY PERSON WHO CONSTRUCTS, ALTERS OR INSTALLS AN ON-SITE WASTEWATER TREATMENT SYSTEM TO BE LICENSED Monday, August 24, 2020 1 June 11, 2020 Ms. Claire Lewandowski, REHS Eagle County Environmental Health 590 Broadway Eagle, CO 81631 RE: Frost Creek - Onsite Wastewater Treatment System Design – Lots 37, Eagle County, CO Dear Claire: JVA Inc. (JVA) has prepared a design of an onsite wastewater treatment system (OWTS) to serve Lot 37 within the Frost Creek PUD. 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 2019 annual Water Quality Monitoring Report prepared by Wright Water Engineers documents exceedances of the 85th percentile background concentrations during sampling events in 2019. The report states the following ‘The trends of water quality parameters seen throughout the sampling of groundwater and surface water at the Frost Creek PUD have not reflected a marked upward increase in concentrations of the sampled parameters. As more homes are constructed on the Frost Creek PUD during 2020, the surface water and groundwater sampling location will continue to be monitored’ Sincerely, JVA, INCORPORATED By: _______________________ Simon Farrell, P.E. Project Manager, Associate Attachment A - OWTS design – Lot 37 Attachment B - Visual and Tactile Soil Evaluation Attachment C - Discharge pump calculations ATTACHMENT A – OWTS DESIGN – LOT 37 FROST CREEK LOT 37 ONSITE WASTEWATER TREATMENT SYSTEM EAGLE COUNTY, COLORADO PERMIT SET JUNE 2020 Set No._______ JVA, Inc.1319 Spruce Street www.jvajva.com Boulder, CO 80302 303.444.1951 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver 49466SIMON A . FAR RELLPROF E S SIONA L E N G INEERCOLOR A D O REGIS T E RED06/26/2020 DESIGN CRITERIA AND NOTESG0.1 REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC.FROST CREEKLOT 37 OWTSEAGLE, COLORADOSHEET NO. 1037.12e JUNE 2020 SAF AR / PMH AR / PMH JVA, Inc.1319 Spruce Street www.jvajva.com Boulder, CO 80302 303.444.1951 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver 49466SIMON A . FAR R ELLPROF E S SIONA L E N G INEERCOLOR A D O REGIS T E RED06/29/2020 12.50 '25.00'12. 5 0 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX7507.34 7506.97 7506.85 7506.38 7505.96 REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC.FROST CREEKLOT 37 OWTSEAGLE, COLORADOSHEET NO. 1037.12e JUNE 2020 SAF AR / PMH AR / PMH JVA, Inc.1319 Spruce Street www.jvajva.com Boulder, CO 80302 303.444.1951 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver 49466SIMON A . FAR R ELLPROF E S SIONA L E N G INEERCOLOR A D O REGIS T E RED06/29/2020 CIVIL SITE PLANC1.0 TREATMENT SYSTEM AND SITE DETAILSCD1.0 REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC.FROST CREEKLOT 37 OWTSEAGLE, COLORADOSHEET NO. 1037.12e JUNE 2020 SAF AR / PMH AR / PMH JVA, Inc.1319 Spruce Street www.jvajva.com Boulder, CO 80302 303.444.1951 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver 49466SIMON A . FAR R ELLPROF E S SIONA L E N G INEERCOLOR A D O REGIS T E RED06/29/2020 SOIL TREATMENT AREA DETAILSCD1.1 REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC.FROST CREEKLOT 37 OWTSEAGLE, COLORADOSHEET NO. 1037.12e JUNE 2020 SAF AR / PMH AR / PMH JVA, Inc.1319 Spruce Street www.jvajva.com Boulder, CO 80302 303.444.1951 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver 49466SIMON A . FAR R ELLPROF E S SIONA L E N G INEERCOLOR A D O REGIS T E RED06/29/2020 ATTACHMENT B – VISUAL AND TACTILE SOIL EVALUATION June 26, 2020 Ms. Claire Lewandowski, REHS Eagle County Environmental Health 590 Broadway Eagle, CO 81631 RE: Frost Creek Lot 37 – Site and Soil Investigation Report for an Onsite Wastewater Treatment System (OWTS) JVA Job No. 1037.12e Dear Claire: Enclosed in this report are the results of the site and soil evaluation for Lot 37’s proposed OWTS located in Frost Creek, Colorado. This report provides information needed to support the design of an OWTS including: results from the preliminary investigation, the site visit, and the soil evaluation. Design calculations are included in the drawing Permit Set attached. PRELIMINARY INVESTIGATION In preparation for a more efficient and informed site visit and soil evaluation, a preliminary investigation was conducted the week of November 8th, 2019. Aerial imagery, and previous Geotechnical investigations were used for the preliminary investigation. Geotechnical investigations were performed by HP Geotech in October 2002 across Frost Creek for OWTS suitability; this geotechnical investigation has been submitted to Eagle County previously. Results from the HP Geotech report showed that Test Hole A and B had bedrock from zero to three feet deep, then a clay layer from three to eight feet deep. No groundwater was encountered in either test holes. SITE VISIT AND SOIL EVALUATION A site visit and soil evaluation were conducted on November 8th, 2019 by James Cochran; James has passed the CPOW Soils Evaluation Course. The purpose of the site visit and soil evaluation was to confirm hypotheses from the preliminary investigation, 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 where the proposed soil treatment area (STA) is to be located for both suitability and sizing. The topography of the site slopes from west to east, and the dominant vegetation consists of native grasses. Site Constraints are shown in the Permit Documents. For the visual and tactile soil evaluation, two soil profile holes were excavated using a tracked excavator. As seen in Table 1 below, Soil Type 3 was identified as the soil type. No redoximorphic features, indicating seasonally high ground water, were found in either holes. Figures 1 through 4 below show the soil profile holes and corresponding morphology. The proposed STA will be with beds and the infiltrative surface will be located three feet under the ground. Frost Creek Lot 37 Site and Soil Investigation 6/26/20 2 of 2 Table 1 – Visual and Tactile Soil Results Profile Hole Depth (ft.) Percent Rock Soil Texture Soil Structure Type Soil Structure Grade Soil Type 1 0 – 3 100% retained on 20 mm sieve 100% retained on 2 mm sieve - - - Bedrock 3 – 8 0% retained on 20 mm sieve 10% retained on 2 mm sieve Silty Clay Loam Granular Moderate 3 2 0 – 3 100% retained on 20 mm sieve 100% retained on 2 mm sieve - - - Bedrock 3 – 6 0% retained on 20 mm sieve 0% retained on 2 mm sieve Silty Clay Loam Blocky Moderate 3 Figure 1 – Profile Hole One Figure 2 – Profile Hole One Soil Morphology Figure 3 – Profile Hole Two Figure 4 – Profile Hole Two Soil Morphology Sincerely, JVA, INCORPORATED By: _______________________ Arden Rose, E.I.T Design Engineer ATTACHMENT C – DISCHARGE PUMP CALCULATIONS Pump Selection for a Pressurized System - Single Family Residence Project Frost Creek Lot 37 20200610 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 2.00 43 40 2.00 None 6.9 12 40 1.50 4 83 40 1.50 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 0.43 168 73.8 4 5.8 7.1 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 10.9 3.5 0.0 0.9 0.6 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 7.5 1.3 35.1 43.9 gals gals gals gals Minimum Pump Requirements Design Flow Rate Total Dynamic Head 73.8 27.9 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: INSPECTION WORKSHEET (INSP-511487-2021) FOR EAGLE COUNTY GOVERNMENT OWTS-019416-2020Case Number:Case Module:Permit Management 11/22/2021 ApprovedInspection Status:Inspection Date: OWTS Final InspectionInspection Type:Inspector:Claire Lewandowski Job Address:Parcel Number:100 Metheny Wy Eagle Area, CO 210935401007 Company Name NameContact Type Applicant Rinn Builders LLC Louis Rinn Contractor Defina Construction, INC Gary Defina Engineer JVA Inc Simon Farrell Owner John Stafford Property Owner Hunters View Lynda KnightDaigle CommentsPassedChecklist Item TrueDosing Chamber/Tank - Dosing Chamber/Tank (when applicable) TrueHigher Level Treatment System - Higher Level Treatment System (when applicable) TrueSeptic Tank - Septic Tank TrueRecord Drawing - Record Drawing TrueRecord Photos - Record Photos TrueSite and Soil - Site & Soil TrueFinal Certification Letter - Final Certification Letter TrueGeneral Plan - General Plan TrueSoil Treatment Area (STA) - Soil Treatment Area (STA) True Eagle County Licensed OWTS Contractor Gary Defina installed the system. Identification of Systems Contractor - Identification of Systems Contractor November 22, 2021 Page 1 of 1P.O. Box 179, 500 Broadway, Eagle, CO 81631-0179 November 17, 2021 Claire Lewandowski, Environmental Health Specialist III Eagle County Environmental Health 500 Broadway Street Eagle, CO 81631 RE: Onsite Wastewater Treatment System Final Certification – 100 Metheny Way, Lot 37 Dear Claire: The Onsite Wastewater Treatment System (OWTS) covered under Eagle County Permit No. OWTS-019416-2020 was installed by Defina Construction Inc 100 Metheny Way, and is ready for final certification from Eagle County Environmental Health. This letter certifies that the construction of the OWTS was completed as per the approved design plan. The final record drawings from JVA, and construction photographs are provided as attachments. As part of the final approval process JVA observed that start-up was completed by the manufacturer’s representative, and completed a site visit to check all system components. The system is connected and can be monitored remotely as required in the PUD. Sincerely, JVA, INCORPORATED By: ________________________ Simon Farrell, P.E. Project Manager, Associate Enclosure: Attachment A – Record Drawings Attachment B – Construction Photographs CC: James Cochran, JVA ATTACHMENT A – RECORD DRAWINGS FROST CREEK LOT 37 ONSITE WASTEWATER TREATMENT SYSTEM EAGLE COUNTY, COLORADO PERMIT SET JUNE 2020 Set No._______ JVA, Inc.1319 Spruce Street www.jvajva.com Boulder, CO 80302 303.444.1951 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver DESIGN CRITERIA AND NOTESG0.1 11/2021ARARRECORD DRAWINGS1REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC.FROST CREEKLOT 37 OWTSEAGLE, COLORADOSHEET NO. 1037.12e JUNE 2020 SAF AR / PMH AR / PMH JVA, Inc.1319 Spruce Street www.jvajva.com Boulder, CO 80302 303.444.1951 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver CONFORMED TO CONSTRUCTION RECORD 12.50 '25.00'12.5 0 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX7506.97 7506.85 7506.38 7505.96 11/2021ARARRECORD DRAWINGS1REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC.FROST CREEKLOT 37 OWTSEAGLE, COLORADOSHEET NO. 1037.12e JUNE 2020 SAF AR / PMH AR / PMH JVA, Inc.1319 Spruce Street www.jvajva.com Boulder, CO 80302 303.444.1951 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver CIVIL SITE PLANC1.0CONFORMED TO CONSTRUCTION RECORD TREATMENT SYSTEM AND SITE DETAILSCD1.0 11/2021ARARRECORD DRAWINGS1REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC.FROST CREEKLOT 37 OWTSEAGLE, COLORADOSHEET NO. 1037.12e JUNE 2020 SAF AR / PMH AR / PMH JVA, Inc.1319 Spruce Street www.jvajva.com Boulder, CO 80302 303.444.1951 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver CONFORMED TO CONSTRUCTION RECORD SOIL TREATMENT AREA DETAILSCD1.1 11/2021ARARRECORD DRAWINGS1REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC.FROST CREEKLOT 37 OWTSEAGLE, COLORADOSHEET NO. 1037.12e JUNE 2020 SAF AR / PMH AR / PMH JVA, Inc.1319 Spruce Street www.jvajva.com Boulder, CO 80302 303.444.1951 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver CONFORMED TO CONSTRUCTION RECORD ATTACHMENT B – CONSTRUCTION PHOTOGRAPHS Lot 37 October 25, 2021 To Whom It May Concern: We have been to the following site(s): LOT 37, (100 Metheney) Frost Creek/Eagle Pump startup has been completed. We have verified that the system was started properly. The System went through several cycles with no issues. Sincerely, Travis Nall Service Manager