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HomeMy WebLinkAbout82 Hunters View Ln - 210925211001Environmental Health Department P.O. Box 179 500 Broadway Eagle, CO 81631-0179 Phone: (970) 328-8730 Fax: (970) 328-7185 Permit Permit No. OWTS-018538-2020 Permit Type: OWTS Permit Work Classification: New Permit Status: Active Issue Date: 4/13/2020 Expires: 8/11/2020 On-Site Wastewater Treatement System Project Address Parcel Number 82 HUNTERS VIEW LN, EAGLE AREA,210925211001 Owner Information Address Lynda KnightDaigle 148 Youngs Preserve Road Silverthorne, CO 80498 Phone: (970) 406-1785 Cell: (970) 409-7174 Email: lknightdaigle@mcrbuilders.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 Beaumont Excavating bexinc@mail.com(970) 390-9393OWTSPL-000063-20 20 Permitted Construction / Details: Install the OWTS exactly as depicted in the JVA, Inc. design stamped, signed and dated March 26, 2020 by Kevin A. Tone, PE. The OWTS is designed with capacity to serve three residences and a maximum of twelve bedrooms, four bedrooms maximum in each residence. The primary treatment for the system consists of a two Valley Precast 2,000 gallon, single compartment tanks (Item #2000T-1CP) in series with an effluent screen and alarm placed at the outlet tee of the second tank. The primary treatment tanks are followed by a 2,000 gallon Valley Precast three-compartment recirculating/dose tank which will send wastewater to an Advantex AX 100 pod for nitrification using an Orenco PF 500712 pump. Nitrified effluent flows to the splitter valve for recirculation to the first 2,000 gallon tank for denitrification then is dosed using an Orenco PF 500512 pump to and automatic distribution valve (ADV), set level at the high point of the system and made accessible at grade. The ADV will alternate dosed effluent to 5,280 square feet of soil treatment area between five beds, each consisting of four rows of 22 Infiltrator Quick 4 Plus Standard chambers for a total of 440 Infiltrator chambers. Maintain all elevations and setbacks, including encasement at waterline crossings, as shown in the design drawing. NOTE: The contractor must verify that all electrical components and inspections are covered under the electrical permit associated with the Orenco Vericom control panel 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 dwellings. Monday, April 13, 2020 1 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 April 13, 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, April 13, 2020 2 March 26, 2020 Ms. Claire Lewandowski, REHS Environmental Health Specialist III PO Box 179 Eagle, CO 81631 RE: Frost Creek - Onsite Wastewater Treatment System Design – Lots 102, 103, 104, Eagle County, CO Dear Claire: JVA Inc. (JVA) has prepared a design of an onsite wastewater treatment system (OWTS) to serve Lots 102, 103 and 104 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 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 Attachment A - OWTS design – Lot 102, 103, 104 Attachment B - Visual and Tactile Soil Evaluation Attachment C - Discharge pump calculations November 4, 2019 Ms. Claire Lewandowski, REHS Eagle County Environmental Health 590 Broadway Eagle, CO 81631 RE: Frost Creek, Hunter’s View Lots 102, 103 & 104 – Site and Soil Investigation Report for an Onsite Wastewater Treatment System (OWTS) JVA Job No. 1037.6e Dear Claire: Enclosed in this report are the results of the site and soil evaluation for proposed Hunter’s View OWTS 2 serving lots 102, 103, & 104 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 October 1st, 2019. Architectural site plans, 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 had a consistent silt layer from grade to eight feet deep. Test Hole B had a silt layer from grade to six feet deep, and a clay gravel layer from six to nine feet deep. No groundwater was encountered in either test holes. SITE VISIT AND SOIL EVALUATION A site visit and soil evaluation were conducted on October 9th, 2019 by James Cochran; James has passed the Colorado Professionals in Onsite Wastewater (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 is on a ridge gently sloping from west to east. The dominant vegetation at the proposed OWTS 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 in the approximate locations identified in the Permit Documents. As seen in Table 1 below, soil morphology for each soil profile hole from the surface up to seven foot deep was consistent with a Soil Type 4, and from seven to eight feet deep with bedrock. Figures 1 through 4 below show the soil profile holes and corresponding morphology. No redoximorphic Frost Creek, Hunter’s View OWTS 2 Site and Soil Investigation 11/4/19 2 of 2 features, indicating seasonally high groundwater, were observed in either profile hole. Therefore, Soil Type 4 was identified as the soil type. The proposed STA will be five beds with the infiltrative surface two feet below grade. 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 – 8 0% Silty Clay Blocky Strong 4 2 0 – 7 0% Silty Clay Blocky Strong 4 7 – 8 100% Bedrock 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: _______________________ James Cochran, P.E. Project Engineer Pump Selection for a Pressurized System - Multiple Family Residence Project Hunter's View 102,103,104 - 1037.6e Parameters Discharge Assembly Size Transport Length Before Valve Transport Pipe Class Transport Line Size Distributing Valve Model Transport Length After Valve Transport Pipe Class Transport Pipe Size 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 1.50 508 40 2.00 6605 82.5 40 1.50 17 12 40 1.50 20 91 40 1.50 1/8 2.5 3 None 0 inches feet 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 Before Valve Transport Velocity After Valve 0.34 148 50.3 4 5.2 4.8 7.9 gpm gpm % fps fps Frictional Head Losses Loss through Discharge Loss in Transport Before Valve Loss through Valve Loss in Transport after Valve Loss in Manifold Loss in Laterals Loss through Flowmeter 'Add-on' Friction Losses 7.6 20.5 17.9 11.2 0.5 0.3 0.0 0.0 feet feet feet feet feet feet feet feet Pipe Volumes Vol of Transport Line Before Valve Vol of Transport Line After Valve Vol of Manifold Vol of Laterals per Zone Total Vol Before Valve Total Vol After Valve 88.6 8.7 1.3 38.5 88.6 48.5 gals gals gals gals gals gals Minimum Pump Requirements Design Flow Rate Total Dynamic Head 50.3 77.9 gpm feet 0 10 20 30 40 50 60 70 80 0 20 40 60 80 100 120 140 160 Net Discharge (gpm) PumpData PF5015 High Head Effluent Pump 50 GPM, 1-1/2HP 230V 1Ø 60Hz, 200V 3Ø 60Hz Legend System Curve: Pump Curve: Pump Optimal Range: Operating Point: Design Point: PERMIT INSPECTION HISTORY REPORT (OWTS-018538-2020) FOR EAGLE COUNTY GOVERNMENT OWTS Permit 04/13/2020Application Date:Permit Type:Owner:Hunters View ParcelNew04/13/2020Work Class:Issue Date:210925211001 Final 02/09/2021Expiration Date:Status:Address:82 HUNTERS VIEW LN EAGLE AREA, CO 190115IVR Number: Scheduled Date Inspection Type Inspection No.Inspection Status Primary Inspector Reinspection CompleteActual Start Date 04/07/2021 OWTS Final Inspection EAGLE AREA - 90 HUNTERS VIEW - 502651 Approved Danielle Sell Complete COMMENTS PassedChecklist Item Dosing Chamber/Tank Dosing chamber pump: Orenco submersible 50GPM PF501512. Yes Septic Tank 2 Valley Precast 2,000 gallon single compartment tanks. 1 Valley Precast 2,000 gallon three-compartment tank. Yes Record Drawing Received from JVA April 19th, 2021.Yes Record Photos Received from JVA April 19th, 2021.Yes Site and Soil Received from JVA April 14th, 2020.Yes Higher Level Treatment System 1 Advantex AX-100.Yes Final Certification Letter Received from JVA April 19th, 2021.Yes Pressure Distribution Recirculation chamber pump: Orenco Submersible 50GPM PF500712. Yes General Plan Effluent line is approximately 400 feet at 2% grade Pure Core with pure core fittings not constriction fittings.. Yes Soil Treatment Area (STA)Observed in compliance with approve design. Yes Identification of Systems Contractor Jeff Beaumont of Beaumont Excavating.Yes COMMENTS PassedChecklist Item Dosing Chamber/Tank Dosing chamber pump: Orenco submersible 50GPM PF501512. Yes Septic Tank 2 Valley Precast 2,000 gallon single compartment tanks. 1 Valley Precast 2,000 gallon three-compartment tank. Yes Record Drawing Received from JVA April 19th, 2021.Yes Record Photos Received from JVA April 19th, 2021.Yes Site and Soil Received from JVA April 14th, 2020.Yes Higher Level Treatment System 1 Advantex AX-100.Yes Final Certification Letter Received from JVA April 19th, 2021.Yes Pressure Distribution Recirculation chamber pump: Orenco Submersible 50GPM PF500712. Yes General Plan Effluent line is approximately 400 feet at 2% grade Pure Core with pure core fittings not constriction fittings.. Yes Soil Treatment Area (STA)Observed in compliance with approve design. Yes Identification of Systems Contractor Jeff Beaumont of Beaumont Excavating.Yes April 19, 2021 Page 1 of 2P.O. Box 179, 500 Broadway, Eagle, CO 81631-0179 PERMIT INSPECTION HISTORY REPORT (OWTS-018538-2020) OWTS Permit 04/13/2020Application Date:Permit Type:Owner:Hunters View ParcelNew04/13/2020Work Class:Issue Date:210925211003 Final 02/09/2021Expiration Date:Status:Address:82 HUNTERS VIEW LN EAGLE AREA, CO 190115IVR Number: Scheduled Date Inspection Type Inspection No.Inspection Status Primary Inspector Reinspection CompleteActual Start Date COMMENTS PassedChecklist Item Dosing Chamber/Tank Dosing chamber pump: Orenco submersible 50GPM PF501512. Yes Septic Tank 2 Valley Precast 2,000 gallon single compartment tanks. 1 Valley Precast 2,000 gallon three-compartment tank. Yes Record Drawing Received from JVA April 19th, 2021.Yes Record Photos Received from JVA April 19th, 2021.Yes Site and Soil Received from JVA April 14th, 2020.Yes Higher Level Treatment System 1 Advantex AX-100.Yes Final Certification Letter Received from JVA April 19th, 2021.Yes Pressure Distribution Recirculation chamber pump: Orenco Submersible 50GPM PF500712. Yes General Plan Effluent line is approximately 400 feet at 2% grade Pure Core with pure core fittings not constriction fittings.. Yes Soil Treatment Area (STA)Observed in compliance with approve design. Yes Identification of Systems Contractor Jeff Beaumont of Beaumont Excavating.Yes April 19, 2021 Page 2 of 2P.O. Box 179, 500 Broadway, Eagle, CO 81631-0179 April 19, 2021 Claire Lewandowski, Environmental Health Specialist III Eagle County Environmental Health 500 Broadway Street Eagle, CO 81631 RE: Onsite Wastewater Treatment System Final Certification – 82, 86 & 90 Hunters View Lane, Lots 102, 103, & 104 Dear Claire: The Onsite Wastewater Treatment System (OWTS) covered under Eagle County Permit No. OWTS-018538-2020 was installed by Beaumont Excavating for 82, 86, & 90 Hunters View Lane. 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. Although all unit processes function properly, the system cannot currently be remotely monitored via Vericomm due to lack of internet infrastructure. CenturyLink is aware of the issue and is upgrading the main panel in Eagle Spur. In the interim Frost Creek will have a more concerted onsite effort by stopping biweekly to check the OWTS and respond to local visual and audio alarms. 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 ARTVARTVOWTS NOTES & SITE PLANC3.0LOT 102, 103, 10404/2021JNGJNGRECORD DRAWINGS1REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC. SHEET NO. 1037.6e KAT JNG JRC/JNG JVA, Inc.JVA, Inc.817 Colorado Ave., Suite 301 www.jvajva.com 970.404.3100 Glenwood Springs, CO Zip 81601 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver LOT 102, 103, 104HUNTERS VIEW LANEFROST CREEK, EAGLE COUNTY, CO03/26/2020 CONFORMED TO CONSTRUCTION RECORD WSARTVTVCIVIL UTILITY PLANC3.1 04/2021JNGJNGRECORD DRAWINGS1REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC. SHEET NO. 1037.6e KAT JNG JRC/JNG JVA, Inc.JVA, Inc.817 Colorado Ave., Suite 301 www.jvajva.com 970.404.3100 Glenwood Springs, CO Zip 81601 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver LOT 102, 103, 104HUNTERS VIEW LANEFROST CREEK, EAGLE COUNTY, CO03/26/2020 CONFORMED TO CONSTRUCTION RECORD A R TV A R TV OWTS FORCEMAIN PLAN AND PROFILEC3.2LOT 102, 103, 10404/2021JNGJNGRECORD DRAWINGS1REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC. SHEET NO. 1037.6e KAT JNG JRC/JNG JVA, Inc.JVA, Inc.817 Colorado Ave., Suite 301 www.jvajva.com 970.404.3100 Glenwood Springs, CO Zip 81601 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver LOT 102, 103, 104HUNTERS VIEW LANEFROST CREEK, EAGLE COUNTY, CO03/26/2020 CONFORMED TO CONSTRUCTION RECORD OPEN CLOSE OPEN CLOSE CLOSE OPEN OPEN CLOSE OPEN CLOSE OPEN CLOSE OPEN CLOSE OPEN CLOSE TREATMENT SYSTEM DETAILSCD3.0 04/2021JNGJNGRECORD DRAWINGS1REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC. SHEET NO. 1037.6e KAT JNG JRC/JNG JVA, Inc.JVA, Inc.817 Colorado Ave., Suite 301 www.jvajva.com 970.404.3100 Glenwood Springs, CO Zip 81601 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver LOT 102, 103, 104HUNTERS VIEW LANEFROST CREEK, EAGLE COUNTY, CO03/26/2020 CONFORMED TO CONSTRUCTION RECORD SOIL TREATMENT AREA DETAILSCD3.1 04/2021JNGJNGRECORD DRAWINGS1REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC. SHEET NO. 1037.6e KAT JNG JRC/JNG JVA, Inc.JVA, Inc.817 Colorado Ave., Suite 301 www.jvajva.com 970.404.3100 Glenwood Springs, CO Zip 81601 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver LOT 102, 103, 104HUNTERS VIEW LANEFROST CREEK, EAGLE COUNTY, CO03/26/2020 CONFORMED TO CONSTRUCTION RECORD ATTACHMENT B – CONSTRUCTION PHOTOGRAPHS