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HomeMy WebLinkAbout720 Andorra Rd - 210701303014Environmental Health Department P.O. Box 179 500 Broadway Eagle, CO 81631-0179 Phone: (970) 328-8730 Fax: (970) 328-7185 Permit Permit No. OWTS-021642-2021 Permit Type: OWTS Permit Work Classification: New Permit Status: Active Issue Date: 6/25/2021 Expires: 10/25/2021 On-Site Wastewater Treatement System Project Address Parcel Number 720 ANDORRA RD, EDWARDS AREA,210701303014 Owner Information Address John McCarty 500 E Grant ST STE 2601 Minneapolis, MN 55404-1498 Phone: (612) 963-1106 Cell: (612) 963-1106 Email: jmcca29920@aol.com Inspections: For Inspections Call: (970) 328-8755 and call the Design Engineer Engineer Phone Email LKP Engineering, Inc., Luiza Petrovska, PE (970) 390-0307 luiza@lkpeng.com Contractor License Number Phone Email RDM Excavating (970) 524-1386OWTSPL-000132-20 21 Permitted Construction / Details: Install the OWTS exactly as depicted in the LKP Engineering, Inc design stamped, signed, and dated March 30, 2021 by Luiza Petrovska, PE. The OWTS is designed to serve a new four bedroom single family residence. The OWTS consist of a 1500-gallons, three-compartment concrete septic tank by Valley Precast with an effluent filter, and an Orenco Pump assembly. Set the pump floats to pressure dose approximately 90 gallons of effluent on demand to 684 square feet of soil treatment area with three rows of 19 Quick 4 Plus Standard chambers arrange in bed configuration over a 3-foot sand filter of secondary sand media. Install inspection ports in all four corners of the bed. 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 the 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. Note: Gradation of the sand media use must be completed within one month prior to the installation and confirmed with the design engineer. If the sand does not conform to secondary or preferred sand media requirements, it cannot be used for the sand treatment media. 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 June 25, 2021 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, June 25, 2021 1 INSPECTION WORKSHEET (INSP-516309-2022) FOR EAGLE COUNTY GOVERNMENT OWTS-021642-2021Case Number:Case Module:Permit Management 07/22/2022 ApprovedInspection Status:Inspection Date: OWTS Final InspectionInspection Type:Inspector: Job Address:Parcel Number:720 Andorra Rd Edwards Area, CO 210701303014 Company Name NameContact Type Applicant Custom House Construction Corp Lori Mowder Contractor RDM Excavating Rodney Morgan Engineer LKP Engineering, Inc.Luiza Petrovska, PE Owner John A. McCarty Revocable Trust John McCarty CommentsPassedChecklist Item True A 1500-gallon, three compartments, precast, concrete, septic tank by Valley Precast with an effluent filter in the second compartment and an Orenco PF500511 high-head pump assembly in the third compartment was used. Septic Tank - Septic Tank True Received 7/22/2022 from LKP.Record Drawing - Record Drawing True Received 7/22/2022 from LKP.Record Photos - Record Photos True Received 6/10/2021 from LKP.Site and Soil - Site & Soil True Received 7/22/2022 from LKP.Final Certification Letter - Final Certification Letter True Received 6/10/2021 from LKP.General Plan - General Plan True The soil treatment area consisted of infiltrator chambers arranged in a bed configuration with three rows of 19 Quick Four Plus Standard Infiltrator Chambers in each. Soil Treatment Area (STA) - Soil Treatment Area (STA) True RDM Excavating was the licensed installer.Identification of Systems Contractor - Identification of Systems Contractor July 22, 2022 Page 1 of 1P.O. Box 179, 500 Broadway, Eagle, CO 81631-0179 P.O. Box 724, Eagle, CO 81631 Tel. (970) 390-0307 www.LKPEngineering,com July 22, 2022 John McCarty 500 E Grant St Apt 2601 Minneapolis, MN 55404-1498 jmcca29920@aol.com RE: Inspection of Septic System Installation McCarty - 4 Bedroom Residence Lot 56, Cordillera Filing No. 3 720 Andorra Road Eagle County, Colorado Project No. 21-3485– OWTS-021642-2021 Dear John: At the request of the installer, Rodney Morgan, RDM Excavating, on July 20, 2022, we visited your property on Lot 56, Cordillera Filing No. 3, 720 Andorra Road, Eagle County, Colorado. The purpose of our site visit was to inspect the installation of the septic system. The system was installed in overall compliance with the septic system design, Drawing No. 21- 3485OWTS.dwg, dated March 30, 2021. At the time of the inspection, we observed the following: The building sewer line was connected to the south side of the residence, west of the SE corner. The cleanout will be level with the lower patio, as shown on the attached as-built sketch. The building sewer line was about 29 feet of 4-inch diameter SDR35 PVC pipe. They installed 1500-gallons, three compartments, precast, concrete, septic tank by Valley Precast with an effluent filter in the second compartment and an Orenco PF500511 high-head pump assembly in the third compartment. The inlet of the tank had the sanitary Tee installed. The tank access ports had corrugated, plastic risers with secured, green, plastic covers. The covers were secured with nuts, bolts and screws. All risers were 38-inch high. The control panel was installed on the south side of the residence, at the SE corner. The effluent line from the pump chamber to end manifold of the soil treatment area, was about 28 feet long, 1.5-inch diameter, sch40 pvc pipe. The end manifold was about 7 feet long, 1.5-inch sch40 pvc. The soil treatment area consisted of infiltrator chambers arranged in a bed configuration with three rows of 19 Quick Four Plus Standard Infiltrator Chambers in each. Three feet of the onsite silty, clayey, rocky soil was overexcavated from the bottom of the trenches and replaced with three feet of secondary sand media (the graph is attached to this report). Pressure dosing system consisting of 78-ft, 1.5-inch sch40 laterals perforated at the top with 1/8-inch holes at 4-ft intervals, suspended from the inside side of each row of infiltrator chambers. The ends of the laterals were equipped with flushing assemblies. A squirt test was performed during the inspection and it was satisfactory. Claire and Kurt from the ECEH Department were present during the inspection and the squirt test as well. All inspection ports were installed (in the end caps of the first and last chamber of each row of infiltrators) in the opening opposite the pressure distribution lines. The septic tank installation and startup of the pump system were done by the installer, Rodney Morgan and his crew. The control panel for the pump was on the back of the house. There is no other warranty either expressed or implied. Sincerely, LKP Engineering, Inc. Luiza Petrovska, PE cc: Eagle County Environmental Health Department E-mail: Claire Lewandowski claire.lewandowski@eaglecounty.us; environment@eaglecounty.us J:\_WP X4-LKP\_2021\21-3485OSIQ4PLUS-BEDSAND-PRESSURE.DOCX 7/22/2022 ANDORR A R O A D ( 1 0 0 ' R . O . W . ) Main Lev e l 65' Garage 64.5' Lower Le v e l 54' Lower Patio 53. 5 ' Parking & Turn Aro u n d Master Bedroom Patio 64. 5 ' 1500 GALLONS, THREE COMPARTMENTS CONCRETE SEPTIC TANK WITH EFFLUENT FILTER AND ORENCO PUMP ASSEMBLY BY VALLEY PRECAST ABOUT 29 FEET OF 4-INCH DIAMETER SDR35 PVC, NEW BUILDING SEWER LINE (THE FIRST AND LAST 5 FEET AT 2 TO 5% SLOPE) FLUSHING ASSEMBLY (TYPICAL) QUICK 4 PLUS, STANDARD INFILTRATOR CHAMBER (TYPICAL) ~ 7' END MANIFOLD, 1.5 INCH DIAMETER SCH40 PVC Boulder Wall 2'-6' Tall TOW:7654' BOW:7648' ABOUT 28 FEET OF 1.5 INCH SCH40 PVC TRANSPORT (EFFLUENT LINE) 54' END CAP (TYP) DRILLED ONE 1/4-INCH HOLE AT THE INVERT OF THE FAR END OF EACH LATERAL FOR DRAINING OF THE REMAINING EFFLUENT FROM THE PIPE BETWEEN DOSING AND ROCK PLACED UNDER STA BED WITH THREE ROWS OF 19 INFILTRATOR CHAMBERS EACH INSPECTION PORTS (TYPICAL IN THE FIRST AND LAST INFILTRATOR CHAMBER OF EACH ROW, INSTALLED IN THE OPENING OF THE CAP OPPOSITE OF THE PRESSURE LINE ~78 FEET OF 1.5-INCH SCH40 PVC LATERAL, PERFORATED WITH 1/8-INCH HOLES AT 4-FOOT INTERVALS AT THE TOP OF THE PIPE (TYPICAL) 53' 30' CLEANOUT CONTROL PANEL SKETCH PROJECT NO.: DATE: PROJECT DESCRIPTION: LKP Engineering, Inc. CIVIL/GEOTECHNICAL PERMIT NO.:AS-BUILT 21-3485 OWTS-021642-2021 JULY 20, 2022 P.O. Box 724 Eagle, CO 81631, (970) 390-0307, www.LKPEngineering.com McCARTY RESIDENCE LOT 56, CORDILLERA AT THE DIVIDE FILING No. 3 720 ANDORRA ROAD EAGLE COUNTY, COLORADO GRADATION ANALYSIS TESTLABORATORY TEST REPORT DATALaboratoryClient:Location / Plant:Sample / Product:Sample Date:Lab Test Date:Job Number:SIEVESIEVE OPENING IN MILLIMETERSPERCENT PASSING THRU SIEVE3"75 100.01.537.5 100.03/4"19 100.03/8"9.5 100.0No. 44.75 97.0No. 82.36 82.0No. 161.18 66.0No. 300.6 44.0No. 500.3 21.0No. 1000.15 6.0No. 2000.075 2.9GRADATION RESULTS COMPARED TO PREFERRED AND SECONDARY SAND FILTER SPECIFICATIONSValue UnitsPreferred Sand ValuePass / Fail Preferred SandSecondary Sand ValuePass / Fail Secondary Sand1.02 millimeters0.190 millimeters 0.25 to 0.60FAIL0.15 to 0.60 PASS5.38 unitless ratio < or = 4.0FAIL< or = 7.0 PASS2.9 millimeters < or = 3 PASS < or = 3 PASSUniformity Coefficient (D60 / D10)Percent passing thru #200 Sieve07/11/202221-3485ParameterD60 - Diameter that 60 percent of the sample is finer than.Effective Size - D10 - Diameter that 10 percent of the sample is finer than.ENTER INFORMATION IN BLUE CELLSUnitedRodney Morgan - McCarty ResidenceUnited14111-Gypsum 1/4" Concrete Sand06/01/202201020304050607080901000.01 0.1 1 10 100Percent Passing SieveDiameter of Particle in MillimetersPlot of Gradation Analysis3"1.5"3/4"3/8"#4#8#30#50#100#200#16J:\_WP X4-LKP\_2021\21-3485McCarty\OSI\21-3485 United Sand Gradation Analysis Spreadsheet PROFILE HOLE #10 TO 1.0 FEET TOPSOIL1.0 TO 4 FEET LIGHT BROWN, SANDYSILT - LOAM4 TO 8 FEETLIGHT BROWN, SANDY,SILTY, CLAYEY GRAVEL (WEATHEREDSILTSTONE AND SHALE BEDROCK)NO GROUND WATER ENCOUNTEREDDESIGN CALCULATIONSDESIGN LONG TERM ACCEPTANCE RATE RATE = 0.8 GPD/SFNUMBER OF BEDROOMS: 4MAXIMUM DAILY FLOW = QMAXQmax = 3 BEDROOMS X 2 PERSONS/BEDROOM X 75 GALLONS/PERSON/DAY + 1 BEDROOM AT 75 GPDQMAX = 525 GPDSEPTIC TANKV = 1000 GALLONS FOR 2 TO 3 BEDROOMS PLUS 250 GALLONS FOR EACH ADDITIONAL BEDROOMUSE 1500-GALLONS THREE COMPARTMENTS, CONCRETE SEPTIC TANK WITH EFFLUENT FILTER, AND HIGHHEAD PUMP BY VALLEY PRECAST OR EQUIVALENT APPROVED BY THE ENGINEER.ABSORPTION AREABASED ON APPLICATION RATE:A = 525GPD/0.8GPD/S.F.A = 656.3S.F.QUICK 4 PLUS, STANDARD INFILTRATOR CHAMBER SYSTEM IN A BED CONFIGURATION CONSTRUCTED OVER 3FOOT OF UNLINED SAND FILTERSURFACE AREA OF ONE QUICK4, PLUS STANDARD INFILTRATOR CHAMBER = 12 S.F.USE 57 QUICK4, PLUS, STANDARD, INFILTRATOR CHAMBERS IN BED AS SHOWN ON THE PLAN.NOTES:1. BENDS IN THE BUILDING SEWER SHALL BE LIMITED TO 45 DEGREES.2. THE SEPTIC TANK SHALL BE INSTALLED LEVEL.3. THE TANK SHALL HAVE RISERS OVER EACH ACCESS MANHOLE AND ALL RISERS SHALL EXTEND TO ORABOVE FINAL GRADE.4. EACH RISER LEAD WILL HAVE A SECURE CLOSING MECHANISM, SUCH AS A LOCK, SPECIAL HEADED BOLTSOR SCREWS, OR SUFFICIENT WEIGHT TO PREVENT UNAUTHORIZED ACCESS.5.THE SEPTIC TANK AND ALL THE PIPING WILL BE BACKFILLED UP TO THE INVERTS PRIOR TO SCHEDULINGAN INSPECTION.6. THE BED WITH THE INFILTRATOR CHAMBERS SHALL BE INSTALLED LEVEL, ALONG THE CONTOUR.7. EXCAVATE NINE (9) FEET WIDE BED8. THE BOTTOM AND THE SIDEWALLS OF THE BED SHALL BE RAKED (IF NEEDED) TO ELIMINATE SMEARING.8. THE BED WILL BE EXCAVATED ADDITIONAL THREE FEET BELOW THE PROPOSED BOTTOM OF THEINFILTRATOR CHAMBERS FOR THE SAND FILTER PLACEMENT.9.THE CLASSIFICATION OF THE SAND TO BE USED IN THE BED OF THE SOIL TREATMENT AREA (STA) MUSTBE LESS THAN 30 DAYS OLD AND SUBMITTED TO THE ENGINEER PRIOR TO THE SAND FILL PLACEMENT.10. MARK A LINE ON THE BED EXCAVATION WALLS AT THE32-FOOT DEPTH FROM THE BOTTOM WITH SPRAYPAINT BEFORE THE SAND PLACEMENT11. PLACE THE SEND FILTER IN THE PREPARED BED TO THE MARKED DEPTH12. ASSEMBLE AND INSTALL THE INFILTRATOR CHAMBERS IN THE BED ACCORDING TO THE MANUFACTURERSRECOMMENDATIONS.13. INSTALL THE PERFORATED PRESSURE DISTRIBUTION LATERALS ACCORDING TO THE MANUFACTURERSRECOMMENDATIONS.14. SCHEDULE A SQUIRT TEST OF THE LATERALS15. BACKFILL THE SIDEWALL AREA WITH NATIVE ON-SITE SOIL FOR PROPER SUPPORT.16. BACKFILL THE BED WITH A MINIMUM OF 12 INCHES OF TAMPED SOIL COVER.17. THE FINAL GRADING OVERT THE STA WILL PROVIDE FOR UNIFORM RUNOFF AWAY FROM THE SOILTREATMENT AREA, WITHOUT ALLOWING WATER TO PUDDLE ON TOP.18. AVOID VEHICLE TRAFFIC OVER THE SYSTEM.19. ALL INSTALLATIONS SHALL MEET THE RULES AND REGULATIONS OF THE EAGLE COUNTYENVIRONMENTAL HEALTH DEPARTMENT AND OWTS REG 43 EFFECTIVE AUGUST 24, 2018 .20.FOR THE INSPECTION OF THE SEPTIC SYSTEM - NOTIFY THE EAGLE COUNTY ENVIRONMENTAL HEALTHDEPARTMENT AND THE DESIGN ENGINEER A MINIMUM OF 48-HOURS PRIOR TO BACKFILLING ANY PART OFTHE SYSTEM TO SCHEDULE AN INSPECTION.PROFILE HOLE NO. 20 TO 0.5 FEET TOPSOIL0.5 TO 1.7 FEET SILTY SAND ANDGRAVEL1.7 TO 4 FEET WEATHERED TO FIRMSILTSTONE AND GYPSUM BEDROCKNO GROUND WATER ENCOUNTEREDRECOMMENDED: PRESSURE DISTRIBUTION, WITH 3 FEET OF UNLINED SAND FILTERFROM PROFILE #1 - SAMPLE AT 4 FEET, RIBBON 1"-2", TYPE 2 SOIL, <35%ROCK>2MM LOAM - LTAR = 0.6 GPD/SFPROFILE HOLE NO. 30 TO 1.0 FEET TOPSOIL1 TO 8 FEET WEATHERED TOFIRM SILTSTONE AND GYPSUMBEDROCKNO GROUND WATERENCOUNTEREDANDORRA ROAD (100' R.O.W.)7616.117621.527629.247Main Level65'Garage64.5'Lower Level54'LowerPatio 53.5'64'63.5'64'63.5'Parking &Turn Around70'66'68'70'72'64'63.5'Existing Treeto Remain, Typ.MasterBathMasterBedroomLowerGuest Rm.LowerGuest Rm.62'64'66'6860'58'56'54'54'56'58'60'62'64'666866Patio 64.5'6456'54'52'50'48'48'50'46'46'50'54'52'64'60'58'56'60'60'62'66'SDPROF - 2PROF - 31500 GALLONS, THREE COMPARTMENTSCONCRETE SEPTIC TANK WITH EFFLUENTFILTER AND ORENCO PUMP ASSEMBLY BYVALLEY PRECAST OR EQUIVALENTABOUT 24 FEET OF 4-INCH DIAMETERSDR35 PVC, NEW BUILDING SEWERLINE (THE FIRST AND LAST 5 FEET TOBE AT 2 TO 5% SLOPEINVin=7641'END CAP (TYP)FLUSHINGASSEMBLY (TYPICAL)DRILL ONE 1/4-INCH HOLE AT THE INVERT OFTHE FAR END OF EACH LATERAL FOR DRAININGOF THE REMAINING EFFLUENT FROM THE PIPEBETWEEN DOSING AND PLACE A ROCK UNDERIT TO PREVENT EROSION (TYPICAL)STA BED WITH THREEROWS OF 19 INFILTRATORCHAMBERS EACHQUICK 4 PLUS, STANDARDINFILTRATOR CHAMBER(TYPICAL)INSPECTION PORT (TYPICAL IN THE FIRSTAND LAST INFILTRATOR CHAMBER OF EACHROW, INSTALLED IN THE OPENING OF THECAP OPPOSITE OF THE PRESSURE LINE~78 FEET OF 1.5-INCH SCH40 PVCLATERAL, PERFORATED WITH 1/8-INCHHOLES AT 4-FOOT INTERVALS AT THETOP OF THE PIPE (TYPICAL)~ 6' END MANIFOLD,1.5 INCH DIAMETERSCH40 PVC76'Boulder Wall2'-6' TallTOW: 7654'BOW: 7648'ABOUT 23 FEET OF 1.5 INCH SCH40PVC TRANSPORT (EFFLUENT LINE)PROF - 111'30'21'24'INFILTRATOR SYSTEMS INC.QUICK4 PLUS STANDARD CHAMBERPRODUCT SPECIFICATION(NOT TO SCALE)PRESSURIZED PIPE DRILLPOINTS LOCATIONS(2 PLACES)(EFFECTIVE LENGTH)TOP VIEWSIDE VIEW END VIEWQUICK4 PLUS ALL-IN-ONE 12 END CAPINSPECTION PORTSAND FILL PLACEMENTPLACE THE SAND FILL MATERIAL IN THE EXCAVATED BED.THE FILTERING MATERIAL USED IN A SAND FILTER MUST BE CLEAN, COARSE SAND, CLASSIFIED ASPRIMARY SAND OR SECONDARY SAND. THE ABOVE DESIGN WAS PREPARED BASED ON SECONDARYSAND.THE CLASSIFICATION OF THE SAND TO BE USED IN THE TRENCHES OF THE SOIL TREATMENT AREA(STA) MUST BE LESS THAN 30 DAYS OLD AND SUBMITTED TO THE ENGINEER PRIOR TO THE SAND FILLPLACEMENT.INFILTRATOR SYSTEMS INC.QUICK4 PLUS STANDARD CHAMBERTYPICAL BED DETAILSECTION VIEW(NOT TO SCALE)NATIVE BACKFILLTOPSOIL2'SAND FILTERPRESSUREDISTRIBUTIONLINES4-FT MAX.ESTABLISH VEGETATIVE COVER9-FTPROPOSED 4-BRMRESIDENCECLEANOUTPROPOSEDINVin=7644'OWTS X-SECTION SKETCHN.T.S6.6' CENTRAL MANIFOLD1.5-INCH SCH40 PVCABOUT 23 FEET OF 1.5 INCH SCH40PVC TRANSPORT (EFFLUENT LINE)EL=7647'INVout=7643.75'INVout =7649'LOWEST FLOOREL=7654'ABOUT 24 FEET OF 4-INCHDIAMETER SDR35 PVC,BUILDING SEWER LINE (THEFIRST AND LAST 5 FEET TOBE AT 2 TO 5% SLOPEGROUND ELEVATION VARIESFROM 7644' ON THE UPPERSIDE TO 7642' ON THE LOWERSIDE OF THE STAMANIFOLDINVin=7640'GROUND ELEVATION~7653.5'BOTTOM OF ALLINFILTRATORSAT =~7639.5'SAND FILTER3'9'SITE PLAN BYALM ARCHITECTS, INC.VENT CAPOPEN BOTTOMVENT CAPINSPECTION PORT4-INCH DIAMETERSDR35 WITHPERFORATIONS ONTHE BOTTOM 8-INCHES2'12"+ATTACH TOINFILTRATORWITH A RING ORSCREWSINSPECTION PORTN.T.S.FINISHEDGRADEOPEN BOTTOMPRESSURE DISTRIBUTIONLATERAL (TYP.)(EFFECTIVE LENGTH)SIDE VIEWValve BoxBall ValveSweeping EllFLUSHING ASSEMBLYN.T.S.SQUIRT TEST OF THE RESIDUAL HEAD OF THESTA BED LATERALSREMOVE THE END CAPS OF THE FLUSHINGASSEMBLY IN ORDER TO FLUSH THE LATERALSCLEAN FROM ANY DRILLING DEBRIS OR DIRT.DO NOT INSTALL THE LAST INFILTRATORCHAMBER SO THAT THE PERFORATIONS ONTHE LATERALS ARE OPEN IN ORDER TO RUNTHE SQUIRT TEST FOR THE MEASUREMENT OFTHE 4-FT RESIDUAL HEAD (+/-10%). THEPREPARATIONS FOR THE SQUIRT TEST MUSTBE READY FOR THE TEST TO BE DONE DURINGTHE FINAL INSPECTION.AFTER THE TEST, INSTALL THE LAST CHAMBERON ALL ROWS.PUMP SELECTIONA DISCHARGE PUMP CAPABLE OFDELIVERING 23.3 GPM AGAINST 11 FEET OFTOTAL DYNAMIC HEAD WILL BE USED. THEELEVATIONS BETWEEN THE PUMP INVERTAND THE INVERT OF THE DISTRIBUTIONVALVE SHOULD BE FIELD VERIFIED ANDREPORTED BACK TO THE ENGINEER.FOR THE DISCHARGE PUMP USEORENCO, PF500511 HIGH HEAD EFFLUENTPUMP. THE PUMP DOSING WILL BE ONDEMAND WITH 90 GALLONS PER DOSE.DRAWN BY:CHECKED BY:PROJECT NO.:SHEET:DRAWING NO.:DATE:BYDESCRIPTIONDATENO.L.P.L.P.C-121-3485MARCH 30, 202121-3485OWTS.DWGONSITE WASTEWATER TREATMENT SYSTEMP.O. Box 724 EAGLE, CO 81631Tel (970) 390-0307www.LKPEngineering.comMcCARTY RESIDENCEMAP~1"=500'SITELOT 56, CORDILLERA AT THE DIVIDE FILING No. 3720 ANDORRA ROADEAGLE COUNTY, COLORADO03/30/2021 P.O. Box 724, Eagle, CO 81631 Tel. 970-390-0307 www.LKPEngineering.com March 30, 2021 John McCarty 500 E Grant St Apt 2601 Minneapolis, MN 55404-1498 jmcca29920@aol.com RE: Soil and Site Evaluation OWTS – 4 Bedroom Residence Lot 56, Cordillera Filing No. 3 720 Andorra Road Eagle County, Colorado Project No. 21-3485 Dear John, On March 25, 2021, we visited your property on Lot 56, Cordillera Filing No. 3, 720 Andorra Road, Eagle County, Colorado. The purpose of our site visit was to select an area on the property for the proposed Soil Treatment Area. During the same site visit, the excavator/installer Travor Dunsdon, with Altitude Septic, dug two profile holes. The OWTS is for a proposed 4-bedroom residence, and it will consist of a 1500-gallons, three-compartments concrete septic tank by Valley Precast with an effluent filter, and an Orenco Pump assembly, and the Soil Treatment Area will consist of 57 Quick 4 Plus, Standard Infiltrator Chambers in a bed configuration with a 3-foot sand filter and pressure dosing. The site plan by Brent Alm, AIA, Alm Architects, Inc., was used as a basis for the septic system design. Directions to the site from Edwards are as follows: from US Highway- 6 turn left onto Squaw Creek Road, continue for 2 miles and turn left onto Cordillera Way, continue for 0.7 miles and turn left onto Andorra Road. The lot is at the end of the road, just before the cul-de- sac, on the right (uphill) side of the road. ! Preliminary Investigation G Address: 720 Andorra Road, Edwards, CO 81632. G Legal Description: Lot 56, Cordillera Filing No. 3, Eagle County, Colorado. G Existing Structures: There were no existing structures on the lot. G Location of existing and proposed wells on property: There are no wells on the property. It is services by public water. G ECEHD (Eagle County Environmental Health Department) records: There were no old record. The property was vacant. G Topography: The topography of the leachfield site is moderate with an average slope of about 27 percent. Drainage is to the south. G Soil Data: The profile holes were observed on March 25, 2021. The soil McCarty Res- 720 Andorra Road March 30, 2021 Page 2 of 4 Project 21-3485 P.O. Box 724, Eagle, CO 81631 Tel. 970-390-0307 www.LKPEngineering.com exposed in the profile holes was as follows: Profile Hole #1 0 to 1.0 feet topsoil 1.0 to 4 feet light brown, sandy silt - loam 4 to 8 feet light brown, sandy, silty, clayey gravel (weathered siltstone and shale bedrock) No ground water encountered Profile Hole No. 2 0 to 0.5 feet topsoil 0.5 to 1.7 feet silty sand and gravel 1.7 to 4 feet weathered to firm siltstone and gypsum bedrock No ground water encountered Profile Hole No. 3 0 to 1.0 feet topsoil 1.0 to 8.0 feet weathered to firm siltstone and gypsum bedrock No ground water encountered A soil sample taken from Profile Hole # 1 at 48-inches was classified as Type 2, LTAR = 0.6 gpd/sf with <35% Rock (>2mm) LOAM Recommended: Due to the weathered bedrock with consistency of sandy gravelly soil, encountered in both, Profile Hole Numbers 2 and 3, STA in a bed configuration with 3 rows of 19 infiltrators in each, over 3 feet of unlined sand filter and with pressure distribution will be used. G Location of applicable setbacks in Table 7-1 ! Reconnaissance G Landscape position: The proposed STA will be located in the Back/Side Slope Slope Position south from the proposed residence (down gradient) G Topography: The topography of the proposed leachfield site is moderate. The rows of infiltrators in the bed will run along the contours. G Vegetation: The vegetation within the proposed leachfield site consisted of grass, sage brush, and juniper trees. The site surrounding the leachfield McCarty Res- 720 Andorra Road March 30, 2021 Page 3 of 4 Project 21-3485 P.O. Box 724, Eagle, CO 81631 Tel. 970-390-0307 www.LKPEngineering.com was similar. G Natural and cultural features: The property is located within the Cordillera Subdivision at The Divide, a residential subdivision in a gated community, above US Highway 6 and Eagle River, west of Edwards, Eagle County, Colorado. G Current and historic land use: The current use is residential. Prior use was ranching. ! Detailed Soil Investigation G Visual and tactile evaluation of two or more soil profile test pit excavation; Two profile holes were dug, observed and logged and visual and tactile evaluation test was done. G Percolation tests plus one or more soil profile holes or one or more profile test pit excavations: Three profile holes were observed and logged on March 25, 2021. ! Report and Site Plan G Name, address, telephone number, email address, and credentials and qualification of individual who conducted site evaluation: This site evaluation was completed by Luiza Petrovska, PE, of LKP Engineering, Inc. LKP Engineering, Inc., is located at 67 Robins Egg Lane, Eagle, Colorado. The phone number is 970-390-0307 and Luiza=s email is luiza@lkpeng.com G Dates of preliminary and detailed evaluation: March 25, 2021. G A graphic soil log, to scale: Attached G Setback distances in Table 7-1: G Main House Well Potable water Structure with basement Structure w/o basement PL Lake Surface Water Intermittent Irrigation lateral (old) Septic Tank Tank n/a - - ~24’ ~22’SPL n/a n/a - STA n/a - - ~30’ 21’SPL n/a n/a ~11’ G Setback distances in Table 7-2: Items 1-4, observed. No ground water encountered. G A drawing (to scale) with complete property boundary lines on minimum of 8.5 x 11" # Label profile test pits/holes # North Arrow # Graphic scale # Horizontal and vertical reference points of proposed STA McCarty Res- 720 Andorra Road March 30, 2021 Page 4 of 4 Project 21-3485 P.O. Box 724, Eagle, CO 81631 Tel. 970-390-0307 www.LKPEngineering.com # Contours OR slope direction and % slope # Location of any visible or known unsuitable, disturbed, or compacted soils # The proposed elevation of the infiltrative surface of the STA from benchmark or ground surface G Anticipated construction related issues: none G Assessment of known or foreseeable land use changes expected to affect the system performance: None known. G Narrative explaining difficulties encountered during site evaluation: none The graphic soil log is appended to this report. LKP Engineering, Inc. Luiza Petrovska, PE Enclosure J:\_WP X4-LKP\_2021\21-3485SOIL-SITE-EVAL-BED-PRESS-SAND.DOCX 03/30/2021 Pump Selection for a Pressurized System - Single Family Residence Project 21-3485 McCarty Residence / 720 Andorra Road, Cordillera 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 23 40 1.50 None 5 6 40 1.50 3 78 40 1.50 1/8 4 4 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 0.39 60 23.3 3 1.4 3.7 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 1.1 0.8 0.0 0.1 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 2.4 0.6 24.7 27.8 gals gals gals gals Minimum Pump Requirements Design Flow Rate Total Dynamic Head 23.3 11.0 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: 7/22/22, 11:56 AM IIIF5547.JPG https://mail.google.com/mail/u/0/#all/FMfcgzGpHHKDKsHpzVTsNhVWGpTXTwpm?projector=1&messagePartId=0.2 1/1 10/18/22, 2:18 PM IIIF5547.JPG https://mail.google.com/mail/u/0/#all/FMfcgzGqQwDMlmCkHQLHbzbCRhmvWtdL?projector=1&messagePartId=0.2 1/1 7/22/22, 12:03 PM IMG_2405STA.JPG https://mail.google.com/mail/u/0/#all/FMfcgzGpHHKDKsHpzVTsNhVWGpTXTwpm?projector=1&messagePartId=0.2 1/1 10/18/22, 2:19 PM IMG_2406Pump assembly.JPG https://mail.google.com/mail/u/0/#all/FMfcgzGqQwDMlmCkHQLHbzbCRhmvWtdL?projector=1&messagePartId=0.2 1/1 7/22/22, 12:03 PM IMG_2408Inlet T.JPG https://mail.google.com/mail/u/0/#all/FMfcgzGpHHKDKsHpzVTsNhVWGpTXTwpm?projector=1&messagePartId=0.2 1/1 7/22/22, 12:03 PM IMG_2410BldgSwrLine.JPG https://mail.google.com/mail/u/0/#all/FMfcgzGpHHKDKsHpzVTsNhVWGpTXTwpm?projector=1&messagePartId=0.2 1/1 7/22/22, 12:03 PM IMG_2413Flushing Assemblies.JPG https://mail.google.com/mail/u/0/#all/FMfcgzGpHHKDKsHpzVTsNhVWGpTXTwpm?projector=1&messagePartId=0.2 1/1 7/22/22, 12:07 PM IMG_2414Squirt Test.JPG https://mail.google.com/mail/u/0/#all/FMfcgzGpHHKDKsHpzVTsNhVWGpTXTwpm?projector=1&messagePartId=0.2 1/1 7/22/22, 12:07 PM IMG_2417Effluent filter.JPG https://mail.google.com/mail/u/0/#all/FMfcgzGpHHKDKsHpzVTsNhVWGpTXTwpm?projector=1&messagePartId=0.2 1/1 7/22/22, 12:07 PM IMG_2418Effl to STA.JPG https://mail.google.com/mail/u/0/#all/FMfcgzGpHHKDKsHpzVTsNhVWGpTXTwpm?projector=1&messagePartId=0.2 1/1 7/22/22, 12:08 PM IMG_2420Tank.JPG https://mail.google.com/mail/u/0/#all/FMfcgzGpHHKDKsHpzVTsNhVWGpTXTwpm?projector=1&messagePartId=0.2 1/1 7/22/22, 12:08 PM IMG_2424BldgSewer- perim drain.JPG https://mail.google.com/mail/u/0/#all/FMfcgzGpHHKDKsHpzVTsNhVWGpTXTwpm?projector=1&messagePartId=0.2 1/1 7/22/22, 12:08 PM NICT6240.JPG https://mail.google.com/mail/u/0/#all/FMfcgzGpHHKDKsHpzVTsNhVWGpTXTwpm?projector=1&messagePartId=0.2 1/1