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HomeMy WebLinkAbout280 Red Bluffs Wy - 210925303004Environmental Health Department P.O. Box 179 500 Broadway Eagle, CO 81631-0179 Phone: (970) 328-8730 Fax: (970) 328-7185 Permit Permit No. OWTS-019615-2020 Permit Type: OWTS Permit Work Classification: New Permit Status: Final Issue Date: 9/15/2020 Expires: 8/30/2021 On-Site Wastewater Treatement System Project Address Parcel Number 280 RED BLUFFS WY, EAGLE AREA,210925303004 Owner Information Address James & Kari McDonald Phone: Cell: (303) 946-2104 Email: jmcdonald@trybaarchitects.com Inspections: For Inspections Call: (970) 328-8755 Engineer Phone Email JVA Inc, Simon Farrell (303) 444-1951 sfarrell@jvajva.com Contractor License Number Phone Email Defina Construction, INC gary@definaconstruction. com (970) 376-6702OWTSPL-000140-20 21 Permitted Construction / Details: Install the OWTS exactly as depicted in the JVA, Inc design stamped, signed, and dated July 1, 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 500512 pump to 936 square feet of soil treatment area (STA). The STA consists of two beds, each arranged with of three rows of 13 Infiltrator Quick 4 Plus Standard chambers for a total of 78 chambers. The infiltrative surface must be at least two feet above seasonally high groundwater, so the infiltrative surface of the beds must be no deeper than two feet below existing ground. 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. Tuesday, October 19, 2021 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 15, 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 PERMIT4.1.6(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 Tuesday, October 19, 2021 2 Environmental Health Department P.O. Box 179 500 Broadway Eagle, CO 81631-0179 Phone: (970) 328-8730 Fax: (970) 328-7185 Permit Permit No. OWTS-019615-2020 Permit Type: OWTS Permit Work Classification: New Permit Status: Active Issue Date: 9/15/2020 Expires: 1/13/2021 On-Site Wastewater Treatement System Project Address Parcel Number 280 RED BLUFFS WY, EAGLE AREA,210925303004 Owner Information Address James & Kari McDonald Phone: Cell: (303) 946-2104 Email: jmcdonald@trybaarchitects.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 July 1, 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 two beds, each arranged with of three rows of 13 Infiltrator Quick 4 Plus Standard chambers for a total of 78 chambers. The infiltrative surface must be at least two feet above seasonally high groundwater, so the infiltrative surface of the beds must be no deeper than two feet below existing ground. 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 September 15, 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 Tuesday, September 15, 2020 1 July 1, 2020 Ms. Claire Lewandowski, REHS Eagle County Environmental Health 590 Broadway Eagle, CO 81631 RE: Frost Creek - Onsite Wastewater Treatment System Design – Lot 79, Eagle County, CO Dear Claire: JVA Inc. (JVA) has prepared a design of an onsite wastewater treatment system (OWTS) to serve Lot 79 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 79 Attachment B - Visual and Tactile Soil Evaluation Attachment C - Discharge pump calculations FROST CREEK LOT 79 ONSITE WASTEWATER TREATMENT SYSTEM EAGLE COUNTY, COLORADO PERMIT SET JULY 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 GENERAL NOTESG0.1 REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC.FROST CREEKLOT 79 OWTSEAGLE, COLORADOSHEET NO. 1037.15e JULY 2020 SAF PMH PMH JVA, Inc.1319 Spruce Street www.jvajva.com Boulder, CO 80302 303.444.1951 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver 7201.08 7201.61 7201.42 7202.81 CIVIL SITE PLANG0.1 REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC.FROST CREEKLOT 79 OWTSEAGLE, COLORADOSHEET NO. 1037.15e JULY 2020 SAF PMH PMH JVA, Inc.1319 Spruce Street www.jvajva.com Boulder, CO 80302 303.444.1951 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver TREATMENT SYSTEM AND SITE DETAILSCD1.0 REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC.FROST CREEKLOT 79 OWTSEAGLE, COLORADOSHEET NO. 1037.15e JULY 2020 SAF PMH PMH JVA, Inc.1319 Spruce Street www.jvajva.com Boulder, CO 80302 303.444.1951 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver SOIL TREATMENT AREA DETAILSCD1.1 REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC.FROST CREEKLOT 79 OWTSEAGLE, COLORADOSHEET NO. 1037.15e JULY 2020 SAF PMH PMH JVA, Inc.1319 Spruce Street www.jvajva.com Boulder, CO 80302 303.444.1951 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver June 8, 2020 Ms. Claire Lewandowski, REHS Eagle County Environmental Health 590 Broadway Eagle, CO 81631 RE: Frost Creek Lot 79 – Site and Soil Investigation Report for an Onsite Wastewater Treatment System (OWTS) JVA Job No. 1037.15e Dear Claire: Enclosed in this report are the results of the site and soil evaluation for Lot 79’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 To prepare for a more efficient and informed site visit and soil evaluation, a preliminary investigation was conducted throughout the week of November 4th, 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 the first test hole consisted of a topsoil followed by a sandy clay layer from 0.5 to 3 feet deep and a clayey gravel layer from 3 to 8 feet deep. The second test hole consisted of a topsoil followed by a sandy clay layer from 0.5 to 4 feet deep and a clayey gravel layer from 4 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 November 8th, 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 in the bottom of a small valley that slopes gently from southwest to northeast. 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 up to four feet deep was consistent with a Soil Type 3, and from four to Frost Creek Lot 79 OWTS Site and Soil Investigation June 8, 2020 2 of 3 approximately eight feet deep was bedrock. Figures 1 through 4 below show the soil profile holes and corresponding morphology. Redoximorphic features, indicating seasonally high groundwater, were observed in both profile holes starting approximately four feet below grade and extending to the bottom of the profile holes. Therefore, Soil Type 3 was identified as the soil type; the LTAR of soil type 3 treatment level 3N will be used. Since there is greater than two feet between a limiting layer and the infiltrative surface, the proposed STA will be a bed with the infiltrative surface two feet below the existing ground. 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 – 4 0% retained on 20 mm sieve 5% retained on 2 mm sieve Clay Loam Granular Moderate 3 4 – 7 100% retained on 20 mm sieve 100% retained on 2 mm sieve - - - Bedrock 2 0 – 4 0% retained on 20 mm sieve 0% retained on 2 mm sieve Clay Loam Granular Moderate 3 4 – 8 100% retained on 20 mm sieve 100% retained on 2 mm sieve - - - 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 Frost Creek Lot 79 OWTS Site and Soil Investigation June 8, 2020 3 of 3 Sincerely, JVA, INCORPORATED By: _______________________ Peter Hassinger, EIT Project Engineer Pump Selection for a Pressurized System - Single Family Residence Project Frost Creek Lot 79 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 55 40 2.00 None 7 9 40 1.50 6 55 40 1.50 1/8 3 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 0.43 114 49.4 6 0.9 4.7 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 7.3 2.2 0.0 0.3 0.1 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 9.6 0.9 34.9 45.4 gals gals gals gals Minimum Pump Requirements Design Flow Rate Total Dynamic Head 49.4 21.9 gpm feet 0 1020304050607080 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: PERMIT INSPECTION HISTORY REPORT (OWTS-019615-2020) FOR EAGLE COUNTY GOVERNMENT OWTS Permit 09/15/2020Application Date:Permit Type:Owner:James & Kari McDonald ParcelNew09/15/2020Work Class:Issue Date:210925303004 Final 08/30/2021Expiration Date:Status:Address:280 RED BLUFFS WY EAGLE AREA, CO 191222IVR Number: Scheduled Date Inspection Type Inspection No.Inspection Status Primary Inspector Reinspection CompleteActual Start Date 10/19/2021 OWTS Final Inspection EAGLE AREA - 280 RED BLUFFS - 510659 Approved Complete COMMENTS PassedChecklist Item Septic Tank 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. Yes Record Drawing Received 10/18/21 from JVA.Yes Record Photos Received 10/18/21 from JVA.Yes Site and Soil Received 8/31/21 from JVA.Yes Final Certification Letter Received 10/18/21 from JVA.Yes General Plan Received 8/31/21 from JVA.Yes Soil Treatment Area (STA)The STA consists of 2 beds of 3 rows of 13 infiltrators for a total of 78 and 936 square feet. Yes Identification of Systems Contractor Defina Construction was the licensed installer. Yes October 19, 2021 Page 1 of 1P.O. Box 179, 500 Broadway, Eagle, CO 81631-0179 October 18, 2021 Claire Lewandowski, Environmental Health Specialist III Eagle County Environmental Health 500 Broadway Street Eagle, CO 81631 RE: Onsite Wastewater Treatment System Final Certification – 280 Red Bluffs Way, Lot 79 Dear Claire: The Onsite Wastewater Treatment System (OWTS) covered under Eagle County Permit No. OWTS-019615-2020 was installed by Defina Construction Inc. for 280 Red Bluffs Way. 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 FROST CREEK LOT 79 ONSITE WASTEWATER TREATMENT SYSTEM EAGLE COUNTY, COLORADO PERMIT SET JULY 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 GENERAL NOTESG0.1 REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC.FROST CREEKLOT 79 OWTSEAGLE, COLORADOSHEET NO. 1037.15e JULY 2020 SAF PMH PMH JVA, Inc.1319 Spruce Street www.jvajva.com Boulder, CO 80302 303.444.1951 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver RECORD DRAWINGSPMHPMH10/20211CONFORMED TO CONSTRUCTION RECORD 7201.08 7201.61 7201.42 7202.81 CIVIL SITE PLANG0.1 REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC.FROST CREEKLOT 79 OWTSEAGLE, COLORADOSHEET NO. 1037.15e JULY 2020 SAF PMH PMH JVA, Inc.1319 Spruce Street www.jvajva.com Boulder, CO 80302 303.444.1951 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver RECORD DRAWINGSPMHPMH10/20211CONFORMED TO CONSTRUCTION RECORD TREATMENT SYSTEM AND SITE DETAILSCD1.0 REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC.FROST CREEKLOT 79 OWTSEAGLE, COLORADOSHEET NO. 1037.15e JULY 2020 SAF PMH PMH JVA, Inc.1319 Spruce Street www.jvajva.com Boulder, CO 80302 303.444.1951 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver RECORD DRAWINGSPMHPMH10/20211CONFORMED TO CONSTRUCTION RECORD SOIL TREATMENT AREA DETAILSCD1.1 REVISION DESCRIPTIOND'WNDES'DDATENO.DESIGNED BY: DRAWN BY: CHECKED BY: JOB #: DATE: © JVA, INC.FROST CREEKLOT 79 OWTSEAGLE, COLORADOSHEET NO. 1037.15e JULY 2020 SAF PMH PMH JVA, Inc.1319 Spruce Street www.jvajva.com Boulder, CO 80302 303.444.1951 Boulder ● Fort Collins ● Winter Park Glenwood Springs ● Denver RECORD DRAWINGSPMHPMH10/20211CONFORMED TO CONSTRUCTION RECORD ATTACHMENT B – CONSTRUCTION PHOTOGRAPHS Frost Creek Lot 79 October 8, 2021 To Whom It May Concern: We have been to the following site(s): Lot 79, 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