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HomeMy WebLinkAbout414 Hunters View Ln - 210925211014Environmental Health Department P.O. Box 179 500 Broadway Eagle, CO 81631-0179 Phone: (970) 328-8730 Fax: (970) 328-7185 Permit Permit No. OWTS-019732-2020 Permit Type: OWTS Permit Work Classification: New Permit Status: Active Issue Date: 9/25/2020 Expires: 1/25/2021 On-Site Wastewater Treatement System Project Address Parcel Number 434 HUNTERS VIEW LN, EAGLE AREA,210925211013 Owner Information Address Hunters View JVCO Land, LLC PO Box 1609 Silverthorne, CO 80498 Phone: (970) 406-1785 Cell: Email: adam@hvbldrs.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 September 11, 2020 by Kevin A. Tone, PE. The OWTS is designed with capacity to serve three single family residences, Lots 114, 115, and 116 in Hunters View, with twelve bedrooms maximum total between the three. 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 filter 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 water line 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. Friday, October 2, 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 September 25, 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 Friday, October 2, 2020 2 September 9th, 2020 Ms. Claire Lewandowski, REHS Environmental Health Specialist III PO Box 179 Eagle, CO 81631 RE: Frost Creek - Onsite Wastewater Treatment System Design – Hunter’s View Lots 114, 115, 116, Eagle County, CO Dear Claire: JVA Inc. (JVA) has prepared a design of an onsite wastewater treatment system (OWTS) to serve Hunter’s View Lots 114, 115 and 116 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 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 Attachment A - OWTS design – Lot 114, 115, 116 Attachment B - Visual and Tactile Soil Evaluation Attachment C - Discharge pump calculations WSWSWS OWTS NOTES & SITE PLANC3.0 REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC. SHEET NO. 1037.6e KAT JNG 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 114, 115, 116HUNTERS VIEW LANEFROST CREEK, EAGLE COUNTY, COSEPTEMBER 2020 WSWSCIVIL UTILITY PLANC3.1 REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC. SHEET NO. 2476.15.1c JLS QDH/RMM QDH/RMM 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 HUNTERS VIEW LANEFROST CREEK, EAGLE COUNTY, CO9/2/2020 FORCEMAIN PLAN AND PROFILEC3.2 REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC. SHEET NO. 1037.6e KAT JNG 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 114, 115, 116HUNTERS VIEW LANEFROST CREEK, EAGLE COUNTY, COSEPTEMBER 2020 OPEN CLOSE OPEN CLOSE CLOSE OPEN OPEN CLOSE OPEN CLOSE OPEN CLOSE OPEN CLOSE OPEN CLOSE TREATMENT SYSTEM DETAILSCD3.0 REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC. SHEET NO. 1037.6e KAT JNG 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 114, 115, 116HUNTERS VIEW LANEFROST CREEK, EAGLE COUNTY, COSEPTEMBER 2020 SOIL TREATMENT AREA DETAILSCD3.1 REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC. SHEET NO. 1037.6e KAT JNG 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 114, 115, 116HUNTERS VIEW LANEFROST CREEK, EAGLE COUNTY, COSEPTEMBER 2020 September 11, 2020 Ms. Claire Lewandowski, REHS Eagle County Environmental Health 590 Broadway Eagle, CO 81631 RE: Frost Creek, Hunter’s View Lots 114, 115 & 116 – 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 6 serving lots 114, 115, & 116 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 just below grade to eight feet deep. Test Hole B had a gravel-sand layer from just below grade 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 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 locations identified in the Permit Documents. As seen in Table 1 below, soil morphology for each soil profile hole from the surface to three feet deep was consistent with a Soil Type 4, and from three to five feet deep bedrock was encountered. Figures 1 through 4 below show the soil profile holes and corresponding morphology. No redoximorphic features, Frost Creek, Hunter’s View OWTS 6 Site and Soil Investigation 11/4/2019 2 of 2 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 one foot below existing 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 – 3 0% Clay Blocky Strong 4 3 – 5 Bedrock (Limiting Layer) 2 0 – 3 0% Clay Blocky Strong 4 3 – 5 Bedrock (Limiting Layer) 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 Job Name: Hunters View OWTS 6 Job Number: 1037.6e Date: 9/9/2020 By: JNG Line Variable Description Value Unit Note Lateral Distribution Piping Nlaterals Number of Laterals being feed by one pump cycle = 4.0 -- 20 total laterals. ADV feeds 4 at once Llateral Lateral Length = 91 ft Orifice Spacing = 2.5 ft Manual Input Norifices Number of Orifices per Lateral = 36 -- Orifice Discharge and Total Flow Corifice Orifice Discharge Coefficient = 0.63 -- Sharp Edge Dorifice Diameter of Orifice = 0.13 in 1/8'' diameter orifice g Acceleration due to Gravity = 32.2 ft/s2 hn Residual Head at last Orifice = 4.22 ft Chosen value. Qn Discharge from Single Orifice = 0.40 gpm = 2.45Corfice·(Dorfice)2·(2ghn)0.5 Qlateral Flow into Each Lateral = 14.47 gpm = Qn x Norifice Qtotal Total Flow into Soil Treatment Area = 57.9 gpm = Qlateral x Nlaterals Headloss in Lateral Distribution Piping (Hazen-Williams) Clateral Hazen-Williams Coefficient = 150 -- For PVC dLateral Lateral Inside Diameter = 1.59 in For 1.5'' SCH 40 hlateral Headloss due to Friction in Lateral = 1.31 ft = 10.5Llateral·(Qlateral/Clateral)1.85·(dlateral)-4.87 hf-lateral Actual Headloss due to Friction in Lateral = 0.436 ft = 1/3 x hlateral (Accounting for Orifices) Headloss in Manifold (Hazen-Williams) Lmanifold Length of Manifold = 12 ft Same as the STA Max Width dmanifold Manifold Inside Diameter = 1.59 in For 1.5'' SCH 40 Cmanifold Hazen-Williams Coefficient = 150 -- For PVC hmanifold Headloss due to Friction in Manifold = 2.24 ft = 10.5Lmanifold·(Qtotal/Cmanifold)1.85·(dmanifold)-4.87 hf-manifold Actual Headloss due to Friction in Manifold = 0.75 ft = 1/3 x hmanifold (Accounting for Orifices) Headloss in Delivery Piping (Hazen-Williams) Lpipe Length of Delivery Pipe = 400 ft From Dosing chamber to ADV, and ADV to manifold dpipe Delivery Pipe Inside Diameter = 1.82 in For 2'' HDPE DR 9 Cpipe Hazen-Williams Coefficient = 150 -- For HDPE Pipe hf-pipe Headloss due to Friction in Pipe = 39.59 ft = 10.5Lpipe·(Qtotal/Cpipe)1.85·(dpipe)-4.87 Total Dynamic Head (Hazen-Williams) hf-fittings Headloss due to Fittings = 2.88 ft One 90 deg bend to STA. Six 90 deg bends to laterals Headloss through Automatic Distirbuting Valve = 23.00 ft hs Static Head = 13.00 ft Max Elevation difference (typically in tank or to ADV) TDH Total Dynamic Head = 83.87 ft = hs + hf-fittings + hf-pipe + hf-manifold + hf-lateral + hn Volume of pipes Delivery Pipe (drainback to tank) = 54 gal = ((3.14/4)*(dpipe/12)2*(Lpipe))*7.48 STA Laterals = 38 gal = ((3.14/4)*(dpipe/12)2*(Lpipe))*7.49 Total Volume = 91 gal Duty Point Flowrate =58 gpm Total Dynamic Head =84 ft HUNTERS VIEW OWTS 6 (Lots 114 115 116) PUMP CALCULATIONS OWTS 6 Pump Calculation - Pump Design Calculations Page 1 of 1 Inspection Result Eagle County, Colorado P.O. Box 179 500 Broadway Eagle, CO Phone: (970) 328-8730 Fax: (970) 328-7185 IVR Phone: 1-866-701-3307 Inspection Number: INSP-509027-2021 Permit Number: OWTS-019732-2020 Inspection Date: 08/09/2021 Inspector: Permit Type: OWTS Permit Inspection Type: OWTS Final Inspection Work Classification: NewOwner:Hunters View Job Address:434 HUNTERS VIEW LN IVR Pin Number:191340 EAGLE AREA, CO Project:<NONE> Parcel Number:210925211013 Contractor:Phone: (970) 390-9393 / Cell: Beaumont Excavating Inspection Status: Approved Inspection Notes Inspector Comments Added Item: Septic Tank 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 filter 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. Added Item: Record Drawing Received 8/6/2021 from JVA Inc. Added Item: Record Photos Received 8/6/2021 from JVA Inc. Added Item: Site and Soil Received 9/25/2020 from JVA Inc. Added Item: Final Certification Letter Received 8/6/2021 from JVA Inc. Added Item: General Plan Received 9/25/2020 from JVA Inc. Added Item: Soil Treatment Area (STA) 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. Monday, August 9, 2021 For more information visit: http://www.eaglecounty.us Page 1 of 2 Added Item: Identification of Systems Contractor Beaumont Excavating was the licensed installer for this system. Monday, August 9, 2021 For more information visit: http://www.eaglecounty.us Page 2 of 2 August 6, 2021 Claire Lewandowski, Environmental Health Specialist III Eagle County Environmental Health 500 Broadway Street Eagle, CO 81631 RE: Onsite Wastewater Treatment System Final Certification – 434, 414, & 448 Hunters View Lane, Lots 114 115 116 Dear Claire: The Onsite Wastewater Treatment System (OWTS) covered under Eagle County Permit No. OWTS-019732-2020 was installed by Beaumont Excavating for 434, 414, & 448 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 WSWSWS OWTS NOTES & SITE PLANC3.0 08/2021JNGJNGRECORD DRAWINGS1REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC. SHEET NO. 1037.6e KAT JNG 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 114, 115, 116HUNTERS VIEW LANEFROST CREEK, EAGLE COUNTY, COSEPTEMBER 2020 WSWSCIVIL UTILITY PLANC3.1 8/6/2020RMMRMMTHREE CAR GARAGE OPTION ADDED1REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC. SHEET NO. 2476.15.1c JLS QDH/RMM QDH/RMM 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 HUNTERS VIEW LANEFROST CREEK, EAGLE COUNTY, CO12/02/2020 CONFORMED TO CONSTRUCTION RECORD FORCEMAIN PLAN AND PROFILEC3.2 08/2021JNGJNGRECORD DRAWINGS1REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC. SHEET NO. 1037.6e KAT JNG 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 114, 115, 116HUNTERS VIEW LANEFROST CREEK, EAGLE COUNTY, COSEPTEMBER 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 08/2021JNGJNGRECORD DRAWINGS1REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC. SHEET NO. 1037.6e KAT JNG 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 114, 115, 116HUNTERS VIEW LANEFROST CREEK, EAGLE COUNTY, COSEPTEMBER 2020 CONFORMED TO CONSTRUCTION RECORD SOIL TREATMENT AREA DETAILSCD3.1 08/2021JNGJNGRECORD DRAWINGS1REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC. SHEET NO. 1037.6e KAT JNG 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 114, 115, 116HUNTERS VIEW LANEFROST CREEK, EAGLE COUNTY, COSEPTEMBER 2020 CONFORMED TO CONSTRUCTION RECORD ATTACHMENT B – CONSTRUCTION PHOTOGRAPHS Hunters View Lots 114 115 116 OWTS Photographs: August 03, 2021 To Whom It May Concern: We have been to the following site(s): Lots 114-116, 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 At the time of startup, no phone connection was available from CenturyLink. Once established, the system will be verified with Vericomm for remote monitoring.