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HomeMy WebLinkAbout556 Frost Creek Dr - 210925302005Environmental Health Department P.O. Box 179 500 Broadway Eagle, CO 81631-0179 Phone: (970) 328-8730 Fax: (970) 328-7185 Permit Permit No. OWTS-018746-2020 Permit Type: OWTS Permit Work Classification: New Permit Status: Active Issue Date: 5/20/2020 Expires: 9/17/2020 On-Site Wastewater Treatement System Project Address Parcel Number 556 FROST CREEK DR, EAGLE AREA,210925302005 Owner Information Address Susan Weintraub 24 Bridgeport Manhattan Beach, 90266 Phone: Cell: Email: skweintraub@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) 376-6702 Permitted Construction / Details: Install the OWTS exactly as depicted in the JVA, Inc. design stamped, signed and dated May 8, 2020 by Simon A. Farrell, PE. The OWTS is designed with capacity to serve a 5 bedroom residence. The system consists of a Valley Precast 1,250 gallon, single compartment tank (Item #1250T-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 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 500512 pump to 792 square feet of soil treatment area via two beds each consisting of three rows of 11 Infiltrator Quick 4 Plus Standard chambers for a total of 66 Infiltrator 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 May 20, 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, June 1, 2020 1 April 30, 2020 Ms. Claire Lewandowski, REHS Eagle County Environmental Health 590 Broadway Eagle, CO 81631 RE: Frost Creek - Onsite Wastewater Treatment System Design – Lots 62, Eagle County, CO Dear Claire: JVA Inc. (JVA) has prepared a design of an onsite wastewater treatment system (OWTS) to serve Lot 62 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 62 Attachment B - Visual and Tactile Soil Evaluation Attachment C - Discharge pump calculations ATTACHMENT A – OWTS DESIGN – LOT 62 ATTACHMENT B – VISUAL AND TACTILE SOIL EVALUATION May 5, 2020 Claire Lewandowski, REHS Eagle County Environmental Health 590 Broadway Eagle, CO 81631 RE: Frost Creek Lot 62 – Site and Soil Investigation Report for an Onsite Wastewater Treatment System (OWTS) JVA Job No. 1037.17e Dear Claire: Enclosed in this report are the results of the site and soil evaluation for Lot 62’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 April 20, 2020. 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. The HP Geotech report showed that the test holes consisted of a topsoil followed by a silt layer from 0.5 to 8 feet deep. No groundwater was encountered in either test hole. SITE VISIT AND SOIL EVALUATION A site visit and soil evaluation were conducted on April 22, 2020 by James Cochran and Chelsea Fagan; 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 sits on top of a hill and slopes south to north. The dominant vegetation at the proposed OWTS consists of native grasses and sage. 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 to eight feet deep was consistent with a Soil Type R-1; Option 2 with Soil Type 2A. Figures 1 through 4 below show the soil profile holes and corresponding morphology. No redoximorphic features, indicating seasonally high groundwater, were observed in either profile hole. Therefore, R-1; Option 2 with Frost Creek Lot 62 OWTS Site and Soil Investigation 5/5/20 2 of 3 Soil Type 2A was identified as the soil type, the LTAR of soil type 2 treatment level 3N. The proposed STA will be a bed with the existing ground as the infiltrative surface; the contractor will remove, mix, and replace 2 feet of existing material. 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 – 2 0% retained on 20 mm sieve <10% retained on 2 mm sieve Clay loam Granular Moderate 3 2 – 5 30% retained on 20 mm sieve 55% retained on 2 mm sieve Sandy loam None Weak R-1; Option 2 with 2A 2 0 – 2 0% retained on 20 mm sieve <10% retained on 2 mm sieve Clay loam Granular Moderate 3 2 – 5 30% retained on 20 mm sieve 55% retained on 2 mm sieve Sandy loam None Weak R-1; Option 2 with 2A Figure 1 – Profile Hole One Figure 2 – Profile Hole One Soil Morphology Frost Creek Lot 62 OWTS Site and Soil Investigation 5/5/20 3 of 3 Figure 3 – Profile Hole Two Figure 4 – Profile Hole Two Soil Morphology Sincerely, JVA, INCORPORATED By: ____________________________________ James Cochran, P.E. Project Engineer ATTACHMENT C – DISCHARGE PUMP CALCULATIONS Pump Selection for a Pressurized System - Commerical Project Frost Creek Lot 62 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 1.50 40 40 2.00 None 0.44 6 40 1.50 3 100 40 1.50 1/8 2.5 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 0.43 123 54.2 3 6.8 5.2 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 8.8 1.9 0.0 0.3 0.8 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 6.9 0.6 31.7 39.3 gals gals gals gals Minimum Pump Requirements Design Flow Rate Total Dynamic Head 54.2 17.1 gpm feet 0 10 20 30 40 50 60 70 80 0 20 40 60 80 100 120 140 160 Net Discharge (gpm) PumpData PF5005 High Head Effluent Pump 50 GPM, 1/2HP 115/230V 1Ø 60Hz, 200/230V 3Ø 60Hz Legend System Curve: Pump Curve: Pump Optimal Range: Operating Point: Design Point: 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: EAGLE AREA - 556 FROST CREEK - 506992 Permit Number: OWTS-018746-2020 Inspection Date: 05/05/2021 Inspector: Sell, Danielle Permit Type: OWTS Permit Inspection Type: OWTS Final Inspection Work Classification: NewOwner:Weintraub Living Trust Job Address:556 FROST CREEK DR STE Lot 62 IVR Pin Number:190329 EAGLE AREA, CO Project:<NONE> Parcel Number:210925302005 Contractor:Phone: (970) 376-6702 / Cell: (970) 376-6702Defina Construction, INC Inspection Status: Approved Inspection Notes Inspector Comments Added Item: Septic Tank 5/4/2021 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 concrete tank. Added Item: Record Drawing Received 8/12/2021 from JVA Inc. Added Item: Record Photos Received 8/12/2021 from JVA Inc. Added Item: Site and Soil Received 9/10/2020 from JVA Inc. Added Item: Final Certification Letter Received 8/12/2021 from JVA Inc. Added Item: General Plan Received 9/10/2021 from JVA Inc. Added Item: Soil Treatment Area (STA) 5/4/2021 Total of 60 chambers during first inspection. 6 more were going to be ordered and installed to fit the design. 5/15/2021 All chambers were installed per the design. Friday, August 13, 2021 For more information visit: http://www.eaglecounty.us Page 1 of 2 Added Item: Identification of Systems Contractor Defina Construction was the licensed installer. Friday, August 13, 2021 For more information visit: http://www.eaglecounty.us Page 2 of 2 August 10, 2021 Claire Lewandowski, REHS, Environmental Health Specialist III Eagle County Environmental Health 500 Broadway Street Eagle, CO 81631 RE: Onsite Wastewater Treatment System Final Certification – 556 Frost Creek Drive, Lot 62 Dear Claire: The Onsite Wastewater Treatment System (OWTS) covered under Eagle County Permit No. OWTS-018746-2020 was installed by Defina Construction Inc. for 556 Frost Creek Drive and is ready for final certification from Eagle County Environmental Health. The engineer of record for this system is Simon Farrell with JVA, Inc (JVA). The final record drawings from JVA, and construction photographs are provided as attachments. As part of the final approval process JVA ensured that start-up was completed by the manufacturer’s representative (Valley Precast, Inc). The system is connected and can be monitored remotely as required in the PUD. Please proceed with the closeout process for this OWTS permit. Sincerely, JVA, INCORPORATED By: ________________________ Simon Farrell, P.E. Associate Enclosure: Attachment A – Record Drawings Attachment B – Construction Photographs CC: Julie Gustavson, JVA ATTACHMENT A – RECORD DRAWINGS FROST CREEK LOT 62 ONSITE WASTEWATER TREATMENT SYSTEM EAGLE COUNTY, COLORADO PERMIT SET MAY 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 LEGENDS AND NOTESG0.1 REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC.FROST CREEKLOT 62EAGLE, COSHEET NO. 1037.17e MAY 2020 SAF CLF CLF 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 08/2021CLFCLFRECORD DRAWINGS1 CIVIL SITE PLANC1.0 REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC.FROST CREEKLOT 62EAGLE, COSHEET NO. 1037.17e MAY 2020 SAF CLF CLF 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 08/2021CLFCLFRECORD DRAWINGS1 TREATMENT SYSTEM AND SITE DETAILSCD1.0 REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC.FROST CREEKLOT 62EAGLE, COSHEET NO. 1037.17e MAY 2020 SAF CLF CLF 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 08/2021CLFCLFRECORD DRAWINGS1 SOIL TREATMENT AREA DETAILSCD1.1 REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC.FROST CREEKLOT 62EAGLE, COSHEET NO. 1037.17e MAY 2020 SAF CLF CLF 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 08/2021CLFCLFRECORD DRAWINGS1 ATTACHMENT B – CONSTRUCTION PHOTOGRAPHS Lot 62 Claire Lewandowski <claire.lewandowski@eaglecounty.us> Frost Creek Lot 62 - soil type change proposed 4 messages Julie N. Gustavson <jgustavson@jvajva.com>Wed, Sep 9, 2020 at 9:32 AM To: Claire Lewandowski <claire.lewandowski@eaglecounty.us> Cc: "James R. Cochran" <jcochran@jvajva.com>, "Simon A. Farrell" <sfarrell@jvajva.com>, Gary Defina <gary@definaconstruction.com>, Louis Rinn <louis@rinnbuilders.com>, Matt Shoulders <mshoulders@frostcreek.com> Hi Claire, We have a constructability concern for the soil treatment area (STA) at Frost Creek Lot 62 and would like to request changing the soil type as stated in the permitting drawings. The permitted soil type was R-1, Option 2 (soil type 2 with >35-65% rock with >50% of the rock <20mm). For an TL3N the regulations (see snapshot below) say to “remove, mix, replace 2 feet of exiting material”. However, in the regulations there is no guidance on re-compaction of that removed material. Generally compaction is avoided in STA, but there would be settling concerns if no compaction was performed after the soil was removed and replaced. For this reason, we would like to change the soil type to R-1, Option 1 (soil type 2-5 with >35-65% rock with >50% of the rock <20mm). This option limits the maximum LTAR to 0.8 without requiring sand media or remove and replacement of soil for TL3N. An LTAR of 0.8 was used in the permitted R-1, Option 2 design, therefore the size of the STA will not change. Let me know if this is acceptable or if you have any questions. Thanks, JULIE N. GUSTAVSON | Design Engineer JVA, Incorporated 213 Linden Street, Suite 200 , Fort Collins , CO 80524 Direct: 720.975.1435 | Phone: 303.444.1951 www.jvajva.com Boulder | Fort Collins | Winter Park | Glenwood Springs | Denver Claire Lewandowski <claire.lewandowski@eaglecounty.us>Thu, Sep 10, 2020 at 10:24 AM To: "Julie N. Gustavson" <jgustavson@jvajva.com> Cc: "James R. Cochran" <jcochran@jvajva.com>, "Simon A. Farrell" <sfarrell@jvajva.com>, Gary Defina <gary@definaconstruction.com>, Louis Rinn <louis@rinnbuilders.com>, Matt Shoulders <mshoulders@frostcreek.com> That sounds acceptable to me. Thank you for the notification. Can you provide me with the address, or parcel, or permit number for Lot 62 so I may add this correspondence to the permit fil. Unfortunately our database does not have a method for searching by Lot numbers. Thank you! [Quoted text hidden] -- Claire Lewandowski, REHS Environmental Health Specialist III 970-328-8755 (office) 970-328-8747 (direct) environment@eaglecounty.us www.eaglecounty.us Environmental Health in person-hours are Monday, Tuesday, and Thursday, 8 a.m. to noon, or by appointment CovidQuestions@eaglecounty.us | 970-328-9750 Support for You - Eagle River Valley | Roaring Fork Valley | 970-328-8888 Business Resources | 970-328-8750 Mental Health Resources | 844-493-8255 Get the Facts: One Valley Voice on Facebook or visit ECEmergency.org daily. Louis Rinn <louis@rinnbuilders.com>Thu, Sep 10, 2020 at 11:38 AM To: Claire Lewandowski <claire.lewandowski@eaglecounty.us> Cc: "Julie N. Gustavson" <jgustavson@jvajva.com>, "James R. Cochran" <jcochran@jvajva.com>, "Simon A. Farrell" <sfarrell@jvajva.com>, Gary Defina <gary@definaconstruction.com>, Matt Shoulders <mshoulders@frostcreek.com> 556 Frost Creek Drive Thank you, Louis Rinn Rinn Builders, LLC PO Box 426 Eagle, CO 81631 louis@rinnbuilders.com www.rinnbuilders.com 970-331-1150 [Quoted text hidden] Julie N. Gustavson <jgustavson@jvajva.com>Thu, Sep 10, 2020 at 12:06 PM To: Claire Lewandowski <claire.lewandowski@eaglecounty.us> Cc: "James R. Cochran" <jcochran@jvajva.com>, "Simon A. Farrell" <sfarrell@jvajva.com>, Gary Defina <gary@definaconstruction.com>, Louis Rinn <louis@rinnbuilders.com>, Matt Shoulders <mshoulders@frostcreek.com> Hi Claire, Thanks for your quick response to our proposal of the change in documented soil type. The address is 556 Frost Creek Dr, the parcel number is 201925302005, and the permit number is OWTS-018746-2020. Thanks, JULIE N. GUSTAVSON | Design Engineer JVA, Incorporated 213 Linden Street, Suite 200 , Fort Collins , CO 80524 Direct: 720.975.1435 | Phone: 303.444.1951 www.jvajva.com Boulder | Fort Collins | Winter Park | Glenwood Springs | Denver [Quoted text hidden]