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Home My WebLink About26 W Lake Creek Dr 2 - 210518102002Environmental Health Department P.O. Box 179 500 Broadway Eagle, CO 81631-0179 Phone: (970) 328-8730 Fax: (970) 328-7185 Permit Permit No. OWTS-022093-2021 Permit Type: OWTS Permit Work Classification: New Permit Status: Active Issue Date: 8/17/2021 Expires: 12/15/2021 On-Site Wastewater Treatement System Project Address Parcel Number 26 WEST LAKE CRK RD, EDWARDS AREA,210518102002 Owner Information Address Mark Darrington 24265 Choke Cherry LN Golden, CO 80401 Phone: (720) 315-8138 Cell: Email: mark_darrington@msn.com Inspections: For Inspections Call: (970) 328-8755 Engineer Phone Email LKP Engineering, Inc., Luiza Petrovska, PE (970) 390-0307 luiza@lkpeng.com Contractor License Number Phone Email Altitude Septic LLC altitudeseptic@gmail.com(970) 471-6292OWTSPL-000120-20 21 Permitted Construction / Details: Install the new system exactly as depicted in the LKP Engineering Inc design dated, stamped and signed on September 21st, 2020 by Luiza Petrovska, PE. The new system will be designed to accommodate the maximum daily flows for 26 W Lake Creek Rd 1 & 2, Eagle Crest Condo Units 1 & 2 with a total combined number of 7 bedrooms. The replacement of the soil treatment area is intended to restore the system to it's intended function, treating wastewater and protecting ground water, as groundwater is observed to be seasonal high in the location, with a mound system to increase the separation and treatment prior to high groundwater, using the original square footage of the original septic as is allowed by setbacks constraints. The OWTS consists of a new 2,000 gallon three compartment Valley Precast septic tank (2,500 gallon total volume) with an effluent filter and Orenco PF500511 high head effluent pump or equivalent effluent pump capable of delivering 28GPM against 19.3 feet of head in the third compartment. Set the floats to deliver effluent to a mounded soil treatment area consisting of four rows of 15 Infiltrator quick4 plus standard low profile chambers set on top of 11.5' x 60' gravel distribution bed over a 38.2' x 83' secondary sand basal area bed 24 inches deep. Install inspection ports in each corner of the distribution bed. Maintain all setbacks as shown on design drawing. Abandonment of the existing tank must be completed in conformance with ECPHA OWTS Regulation 43.9.C. 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. 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 Danielle Sell Date August 17, 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 Tuesday, August 17, 2021 1 DEPARTMENT OF ENVIRONMENTAL HEALTH P.O. Box 179 (970) 328-8755 500 Broadway FAX: (970) 328-8788 Eagle, CO 81631 TOLL FREE: 800-225-6136 environment@eaglecounty.us www.eaglecounty.us 4L EAGLE COUNTY *************************************************************************** APPLICATION FOR ON -SITE WASTEWATER TREATMENT SYSTEM (OWTS) PERMIT INCOMPLETE APPLICATIONS MAY NOT BE ACCEPTED (SITE PLAN MUST BE INCLUDED) FEE SCHEDULE APPLICATION FEE FOR NEW OWTS OR MAJOR REPAIRS $800.00 MINOR REPAIR FEE $400.00 Fee includes the design review, permitting and maintenance of OWTS records Make all checks payable to: Eagle County Treasurer Property Owner: Mark and Kimberly Darrington Phone: 720-315-8138 Owner Mailing Address: 26 W Lake Creek Rd #2 Edwards,C email: mark_darrington@msn.co Professional Engineer: LKP Engineering, Luiza Petrovska Phone: 970-390-0307 Applicant / Contact Person: Kimberly Darrington Phone: 303-915-8135 Licensed Systems Contractor Name / Company: Altitude Septic/Travor Contractor Mailing Address: PO Box 1534 Eagle, CO 81631 Contractor Phone Number: 970-471-0913 Contractor License #: 120-20. email: altitudespetic@gmail.com OWTS Permit Application is for: a - 1 New Installation 7 Alteration 7 Repair Tax Parcel Number: R016107 and R016106 Assessor's Link: www.eaglecounty.us/patie/ Physical Address: 26 W Lake Creek Road Lot Size: 1,904 AC Legal Description: Lot 39, Block 5 Lake Creek Meadows Subdivision Units #1 and 2 Building Type: Residential / Single Family Number of Bedrooms: Residential / Multi Family Commercial / Industrial Number of Bedrooms: 7 Type of Use: *As of 06/27/2014, all systems require design by a Registered Professional Engineer. Type of Water Supply: F Private Well Spring 11 Surface 17V Public If Public, Name of Supplier: Lake Creek Metropolitan District Applicant S Office Use Only: OWTS PERMIT # _ Amount Paid: Receipt # ate: 2-& BUILDING PERMIT# Check #: 0 Date: '�i P.O. Box 724, Eagle, CO 81631 Tel. (970) 390-0307 www.LKPEngineering.com September 17, 2021 Mark & Kimberly Darrington, 24265 Choke Cherry Ln Golden, CO 80401-9203 mark_darrington@msn.com RE: Inspection of Septic System Installation OWTS-Replacement – for two residences 26 W Lake Creek Rd 1 & 2 Eagle Crest Condo Units 1 & 2 Eagle County, Colorado Project No. 19-3352– OWTS-022093-2021 Dear Mark: At the request of the installer, Travor Dunsdon, Altitude Septic LLC, on August 17 and September 3, 2021, we visited your property at 26 W Lake Creek Rd 1 & 2, Eagle Crest Condo Units 1 & 2, Eagle County, Colorado. The purpose of our site visit was to inspect the installation of the new septic system that replaces the failed septic system, for the existing two residences. The system was installed in overall compliance with the septic system design, Drawing No. 19-3352OWTS-MND.dwg, dated September 21, 2020. At the time of our site visit, we observed the following: They installed 2000-gallons, three-compartments, Concrete Septic Tank by Valley Precast with an effluent filter (the handle was extended to within 12 inches of the riser cover) in the second compartment and with an Orenco PF500511 high-head pump assembly in the third compartment. The tank was anchored with three concrete anchors on each side of the tank and wire cables going over the tank. The inlet of the tank had two Tee’s installed. The tank access ports had corrugated, plastic risers with secured, green, plastic covers. The covers were insulated and were be secured with nuts, bolts and screws. The first compartment had 36-inch riser and the other two had 24-inch risers. Three building sewer lines were found during the excavation of the old septic tank and all three were connected to the new septic tank, as shown on the attached as-built sketch. One of the building sewer lines, connected to the side inlet of the fist compartment, was from the garage area. The other two building sewer lines, from the building side of the tank, were connected together just before the top inlet. A cleanout was constructed on the section of the north building sewer line, as shown on the above-named sketch. The building sewer lines were4-inch diameter SCH40 PVC pipe. The effluent line from the pump chamber to the end manifold of the mound system, was about 17 feet, 1.5-inch diameter, SCH40 PVC pipe. The soil treatment area consisted of a mound system, consisting of a sand fill with four rows of 15 Quick4 Plus Standard, Low Profile, infiltrator chambers in the distribution cell. The sand was from Webster Gravel Pit, was less than 30-days old, and it passed the classification for a secondary 26 W Lake Creek Rd 1 & 2 Project 19-3352 September 17, 2021 Page 2 of 2 P.O. Box 724, Eagle, CO 81631 Tel. (970) 390-0307 www.LKPEngineering.com sand. The pressure dosing system consisted of four, 60-feet long, 1.25-inch diameter sch40 pvc, distribution laterals, perforated at their inverts with 1/8-inch holes at 4-foot intervals, arranged on the sand bed with an end manifold. The end manifold was 8.5 feet long, 1.5-inch, sch40 pvc. The ends of the laterals were equipped with flushing assemblies. A squirt test was performed during the inspection. Four inspection ports were installed, one on each corner of the distribution cell. The end caps installed were different from the ones specified. They had two possible cutouts at the top and all inspection ports were installed in the outside cutout. The septic tank installation was done by Valley Precast. The startup of the pump system was done by Travor Dunsdon, Altitude Septic. The control panel for the pump was on the east side of garage, as shown on the as-built sketch. The old tanks were pumped out, crushed, and hauled to Eagle County Landfill by Travor. 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@eaglecounty.us, environment@eaglecounty.us J:\_WP X4-LKP\_2019\19-3352OSIQ4PLUSLP-SOILMND-PUMPPRESSURE.DOCX 9/17/2021 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: EDWARDS AREA - 26 WEST LAKE CRK - 509878 Permit Number: OWTS-022093-2021 Inspection Date: 09/17/2021 Inspector: Permit Type: OWTS Permit Inspection Type: OWTS Final Inspection Work Classification: NewOwner:Mark Darrington Job Address:26 WEST LAKE CRK RD IVR Pin Number:193817 EDWARDS AREA, CO Project:<NONE> Parcel Number:210518102002 Contractor:Phone: (970) 471-0913 / Cell: (970) 471-6292Altitude Septic LLC Inspection Status: Approved Inspection Notes Inspector Comments Added Item: Septic Tank A 2000-gallon, three-compartment, Concrete Septic Tank by Valley Precast with an effluent filter (the handle was extended to within 12 inches of the riser cover) in the second compartment and with an Orenco PF500511 high-head pump assembly in the third compartment. Added Item: Record Drawing Received 9/17/21 from LKP. Added Item: Record Photos Received 9/17/21 from LKP. Added Item: Site and Soil Added Item: Final Certification Letter Received 9/17/21 from LKP. Added Item: General Plan Received 8/5/21 from LKP. Added Item: Soil Treatment Area (STA) The soil treatment area consists of four rows of 15 Infiltrator quick4 plus standard low profile chambers set on top of 11.5' x 60' gravel distribution bed over a 38.2' x 83' secondary sand basal area bed 24 inches deep. Friday, September 17, 2021 For more information visit: http://www.eaglecounty.us Page 1 of 2 Added Item: Identification of Systems Contractor Altitude Septic was the licensed installer. Friday, September 17, 2021 For more information visit: http://www.eaglecounty.us Page 2 of 2 PROFILE HOLE #10 TO18" TOPSOIL WITH COBBLES ANDBLOCKY CLAY WITH COBBLES18" TO 5 FT" CLAYEY, SANDY GRAVELWITH COBBLES AND BOULDERSGROUND WATER AT 4 FEET, MOTTLINGAT 3 FEET MOUND SYSTEMDUG AUGUST 1, 2019DESIGN CALCULATIONS FOR A MOUND SYSTEMDUE TO HIGH GROUND WATER TABLE A MOUND TYPE SYSTEM WITH A MINIMUM OF 24 INCHES OF SAND FILL BELOWTHE DISTRIBUTION MEDIA AND WITH PRESSURIZED DISTRIBUTION NETWORK IS RECOMMENDED FOR THIS SITE.MAXIMUM SOIL LOADING RATE FOR FOR SOIL TYPE 2 = 0.6GPD/SF - Table 1 OWTS CDPHE MOUND DESIGNCOMBINED NUMBER OF BEDROOMS = 7MAXIMUM DAILY FLOW = QMAXFROM TABLE 6.1 FOR 7 BEDROOMS USE 10 PERSONS X 75 GALLONS/PERSON/DAYQMAX = 750 GPDSITE SLOPE WITHIN ABSORPTION AREA = 17%, RE-GRADE TO 2%SEPTIC TANK1000 GALLONS FOR 2 TO 3 BEDROOMS PLUS 250 GALLONS FOR EACH ADDITIONAL BEDROOMFOR A 7 BEDROOM RESIDENCE:2000 GALLONS, THREE-COMPARTMENTS, ELECTRIC LIFT SEPTIC TANK WITH AN EFFLUENT FILTER BY VALLEY PRECASTABSORPTION AREASOIL LOADING RATE SLR = 0.6 GPD/SFLINEAR LOADING RATE LLR = 9.0 GPD/LFFOR A SECONDARY SAND,SAND FILL LOADING RATE SFLR = 0.8 GPD/SFDISTRIBUTION CELL WIDTH (A)A = LLR/SFLRA = (9.0 GPD/F) / (0.8 GPD/SF)A = 11.25 FEET, INCREASE TO 11.5 FEET FOR 4 ROWS OF CHAMBERSDISTRIBUTION CELL WIDTH (B)B = DESIGN FLOW/LLRB = 525 GPD/9.0GPD/SFB = 58.3 FEET, INCRESE TO 60 FEET FOR 4X15 QUICK FOUR PLUS LOW PROFILE CHAMBERSTHE ABSORPTION BED DIMENSION WITHIN THE MOUND SYSTEM WILL BE 11.5 FEET WIDE BY 60 FEET LONG. THEABSORPTION BED WILL BE PARALLEL TO THE SURFACE CONTOURS. WITH THE ADDITIONAL 1 FOOT ON EACH SIDE THEDISTRIBUTION CELL, THE DIMENSIONS WILL BE 13.5 FEET BY 62 FEET.THE PERIMETER OF THE MOUND WILL BE 38.2 FEET WIDE AND 83 FEET LONG.SITE PREPARATIONSTAKE OUT THE MOUND PERIMETER. CUT AND REMOVE ANY EXCESSIVE VEGETATION.INSTALL THE DELIVERY PIPE FROM THE DOSING CHAMBER TO THE MOUND. BACKFILL AND COMPACT THE PIPETRENCH.FILL PLACEMENTPLACE THE FILL MATERIAL OVER THE PREPARED SITE.THE FILTERING MATERIAL USED IN A SAND FILTER MUST BE CLEAN, COARSE SAND, CLASSIFIED AS PRIMARY SAND ORSECONDARY SAND. THE ABOVE DESIGN WAS PREPARED BASED ON SECONDARY SAND WITH SAND FILL LOADING RATEOF 0.8 GPD/SF.THE CLASSIFICATION OF THE SAND FILL TO BE USED IN THE MOUND SYSTEM MUST BE LESS THAN 30 DAYS OLD ANDSUBMITTED TO THE ENGINEER PRIOR TO THE SAND FILL PLACEMENT. THE RESULTS OF THE SAND FILL SPECIFICATIONMIGHT REQUIRE A REVISION OF THE SYSTEM.THE HEIGHT OF THE SAND FILL SHOULD BE THE ELEVATION OF THE TOP OF THE ABSORPTION BED. SHAPE THE SIDESOF THE MOUND TO THE RECOMMENDED SLOPE, AS SHOWN ON THE DETAILS.DISTRIBUTION NETWORK PLACEMENTASSEMBLE THE 4ROWS WITH 15 QUICK FOUR PLUS LOW PROFILE CHAMBERS EACH ON THE PREPOARED BED FOR THEMOUND SYSTEM. ASSEMBLE THE DISTRIBUTION NETWORK. THE DISTRIBUTION NETWORK WILL CONSIST OF FOUR1-1/4-INCH DIAMETER SCH40 PVC, 60-FEET LONG LATERALS, CONNECTED WITH A 1.5-INCH DIAMETER SCH40 PVC ENDMANIFOLD. THE TOP OF THE LATERALS SHALL BE PERFORATED WITH 1/8-INCH HOLES SPACED EVERY 48 INCHES. FORTHE PRESSURE DISTRIBUTION NETWORK USE SCHEDULE 40 PVC (ASTM D 2665) OR ABS (ASTM 2661) PIPE.THE LATERALS SHALL BE SUSPENDED FROM THE INFILTRATORS, ACCORDING TO THE MANUFACTURERS'RECOMMENDATIONS. CONNECT THE FLUSHING ASSEMBLY AT THE OUTER END OF EACH LATERAL.SQUIRT TEST OF THE RESIDUAL HEAD ON THE MOUND LATERALSREMOVE THE END CAPS OF THE FLUSHING ASSEMBLY IN ORDER TO FLUSH THE LATERALS CLEAN FROM ANY DRILLINGDEBRIS OR DIRT. PROVIDE ONE 1/8-DIAMETER HOLE IN A TEMPORARY CAP ON THE ENDS OF THE FLUSHINGASSEMBLIES FOR THE SQUIRT TEST. RUN THE SQUIRT TEST TO MEASURE THE 5-FT RESIDUAL HEAD (+/-10%)AFTER THE TEST REMOVE THE TEMPORARY, PERFORATED CAPS AND REPLACE WITH THE PERMANENT CAPS.INSPECTION PIPEINSTALL A 4 INCH DIAMETER INSPECTION PIPE ON BOTH ENDS OF THE MOUND SYSTEM IN THE MIDDLE CUT OUT OFEACH OF THE END CAPS. THE INSPECTION PIPES WILL BE COVERED WITH VENT CAPS.OVERING OF THE MOUND SYSTEMDO NOT BACKFILL THE INFILTRATOR CHAMBERS PRIOR TO INSPECTION.DO NOT DRIVE OVER THE SYSTEM. THEINFILTRATOR CHAMBERS CAN BE COVERED WITH ON-SITE SOIL, TOPSOIL, OR IMPORTED FILL MATERIAL. NO ROCKSGREATER THAN 6 INCHES WILL BE USED IN THE BACKFILL MATERIAL. PLACE A FINER TEXTURED SOIL, SUCH AS CLAYOR SILT LOAM OVER THE TOP OF THE BED, TO A MINIMUM THICKNESS OF 10 INCHES.PLACE ADDITIONAL 4-6 INCHES OF GOOD QUALITY TOPSOIL OVER THE ENTIRE MOUND SURFACE. PLANT GRASSESADAPTABLE TO THE CLIMATE OVER THE MOUND SYSTEM.PUMP SELECTIONA PUMP CAPABLE OF DELIVERING 28GPM AGAINST 19.3 FEET OF HEAD CAN BE USED. THE ELEVATIONS BETWEEN THEPUMP INVERT AND THE MANIFOLD INVERT MUST BE FIELD VERIFIED. THE PUMPING SYSTEM MUST ALSO INCLUDE PUMPCONTROLS AND AN ALARM SYSTEM, AUDIBLE AND VISUAL. THE PUMP DOSING WILL BE ON DEMAND WITH 90 GALLONSPER DOSE. USE ORENCO, PF500511 HIGH HEAD EFFLUENT PUMP, 115/230V, 50GPM, 12 HP, OR EQUIVALENT, APPROVEDBY THE ENGINEER. WHEN THE PUMP SHUTS OFF THE EFFLUENT LINE WILL DRAIN BACK INTO THE PUMP CHAMBER. THEPUMP SYSTEM MUST BE TESTED BEFORE THE FINAL INSPECTION OF THE SEPTIC SYSTEM AND A LETTER OF THE TESTSUBMITTED TO THE ENGINEER.PROFILE HOLE #20 TO 2 FOOT TOPSOIL2 TO 4.5 FEET SLIGHTLY CLAYEY, SANDY GRAVEL WITHCOBBLES AND BOULDERS WITH SIGNS OF MOTTLING AT2 FEETNO FREE GROUND WATER ENCOUNTEREDTYPE 2, >35% ROCK>2MM>50% ROCK >34" - MOUND SYSTEMDUG 9-11-2020MOUND DIMENSIONSDESCRIPTION SYMBOLDIMENSION(FEET) BED WIDTH A 11.50 BED LENGTHB60.00 MOUND FILLC1.00 MOUND FILLD3.00 MOUND DEPTH - DISTRIBUTION CELLE0.67 MOUND DEPTH - FINAL COVERF0.83 DOWNSLOPE SETBACKI20.40 UPSLOPE SETBACKJ4.30 SIDESLOPE SETBACKK10.50 MOUND LENGTHL83.00 MOUND WIDTHW38.20EXISTINGRESIDENCECLEANOUTINVin=7505.68'OWTS X-SECTION SKETCHN.T.S34 FEET, 4-INCH DIAMETER,SDR35 BUILDING SEWER LINEABOUT 20 FEET OF 1.5 INCHSCH40 PVC TRANSPORT(EFFLUENT LINE)EL=7510'INVout=7505.43'SAND FILLTOPSOILGROUNDEL=7510'INVout=Assumed 7506'FROMPUMPCLEARED ANDRAKED SURFACEMANIFOLD31~25%~16%~12%INVin=7512.41'D=3.0'C=1'FROMPUMPMOUND SECTIONNOT TO SCALECLEARED ANDRAKED SURFACESAND FILLMANIFOLD60 FEET, 1.25-INCH DIAMETER SCH40PVCLATERALS PERFORATED WITH 1/8-INCH HOLES AT4-FT INTERVALS AT THE TOP OF THE LATERALFILTER FABRIC, MIRAFI 140N,NONWOVENBACKFILL MOUNDED ATTHE MIDDLETOPSOIL8.5-FT, 1.5-INCH DIAMETER SCH40PVC END MANIFOLDI = 20.4'A+2 = 13.5'J=4.3'31~25%GROUND EL=7510'(BASED ON TOPO)TO BE VERIFIEDE=8"F=10"~16%~12%INVin=7512.41'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 SHALLEXTEND TO OR ABOVE FINAL GRADE.4. EACH RISER LID SHALL HAVE A SECURE CLOSING MECHANISM, SUCH AS A LOCK, SPECIALHEADED BOLTS OR SCREWS, OR SUFFICIENT WEIGHT TO PREVENT UNAUTHORIZED ACCESS.5.THE SEPTIC TANK AND ALL THE PIPING WILL BE BACKFILLED UP TO THE INVERTS PRIOR TOSCHEDULING AN INSPECTION.6. THE EFFLUENT FILTER MUST HAVE THE HANDLE EXTENDED TO WITHIN FEW INCHES OF THECOVER FOR INSPECTION AND MAINTENANCE.7. THE FIRST AND LAST FIVE FEET OF THE BUILDING SEWER LINE MUST HAVE A SLOPE OF 2%.8. AVOID VEHICLE TRAFFIC OVER THE SYSTEM.7. ALL INSTALLATIONS SHALL MEET THE RULES AND REGULATIONS OF THE EAGLE COUNTYPUBLIC HEALTH AGENCY AND OWTS REG 43, EFFECTIVE AUGUST 24, 2018.8.FOR THE INSPECTION OF THE SEPTIC SYSTEM - NOTIFY THE EAGLE COUNTY PUBLIC HEALTHAGENCY AND THE DESIGN ENGINEER A MINIMUM OF 72-HOURS PRIOR TO BACKFILLING ANYPART OF THE SYSTEM TO SCHEDULE AN INSPECTION.INFILTRATOR SYSTEMS INC.QUICK4 PLUS STANDARDLOW PROFILE CHAMBERPRODUCT SPECIFICATION(NOT TO SCALE)(EFFECTIVE LENGTH)TOP VIEWSIDE VIEWEND VIEWQUICK4 PLUS ALL-IN-ONE END CAPQUICK4 PLUS END CAPINSPECTION PORT*ALL VIEWS = INSTALLED LENGTHSNOTE:THE SITE PLAN WAS EMAILED BYTHE OWNER AND IT IS NOT CURRENTL=83.00'W=38.20'I=20.40'K=10.50'J=4.30'A+2=13.50'B+2=62. 0 0'K=10.50'EX. SEPTIC TANK TOBE ABANDONEDEX. CLEANOUTEX. ALTERNATINGVALVE CLEANOUTEX. INSPECTION PORTSOBSERVED~53' tocreek61'+/- TANKTO CREEKINVin=7505.68'INVERT OUT NOT AVAILABLE . TO BE VERIFIED PRIOR TOCONSTRUCTION AND REPORTED TO THE ENGINEERASSUMED DISTANCE ~16 FEET OF SDR35 BUILDINGSEWER LINE AT 2% SLOPE (INSULATE THE PIPE WHEREDEPTHS ARE LESS THAN 4 FEET BELOW FINISH GRADE)2000 GALLONS, 3-COMPARTMENTS, CONCRETE SEPTICTANK WITH AN EFFLUENT FILTER AND AN ORENCO PUMPBY VALLEY PRECAST (if ground water is encountered in theseptic tank area, anchoring of the tank must be implemented)TOP OF RISERELEVATION ~ 7510.68'(AT GRADE OR ABOVE)INVoutASSUMED=7506'CLEANOUTABOUT 20 FEET OF 1.5INCH DIAMETER, SCH40PVC TRANSPORT LINEEND CAP (TYP)DRILL ONE 1/4-INCH HOLE AT THEINVERT OF THE FAR END OF THELATERALS FOR DRAINING OF THEREMAINING EFFLUENT FROM THE PIPEBETWEEN DOSING AND PLACE A ROCKUNDER IT (or splash plate) TO PREVENTEROSION (TYPICAL)PROFILEHOLE - 1PROFILEHOLE - 210'76.77'45.65'69.12'22'+/-24'+/-LINED DITCH36'+/-RE-GRADE, IF NECESSARY, TOMAINTAIN NO MARE THAN 4 FEETBACKFILL ABOVE THE TANKTO WEST LAKECREEK ROADMOUND PERIMETER(SAND FILL)MOUND WITH FOUR ROWS OF 15QUICK4 PLUS STANDARD LOWPROFILE INFILTRATOR CHAMBERSFLUSHINGASSEMBLY(TYP)FLUSHING ASSEMBLYN.T.S.(EFFECTIVE LENGTH)SIDE VIEWValve BoxBall ValveSweeping EllGENERAL NOTES1. BEFORE DIGGING NOTIFY ALL APPLICABLE UTILITY COMPANIES.2. OBTAIN OWTS PERMIT FROM THE EAGLE COUNTY ENVIRONMENTAL HEALTH DEPARTMENT PRIOR TOINSTALLATION OF THE SYSTEM.3. ALL WORK SHALL COMPLY WITH ALL APPLICABLE CODES AND ORDINANCES.4. NOTES AND DETAILS ON SPECIFIC DRAWINGS TAKE PRECEDENCE OVER GENERAL NOTES AND TYPICALDETAILS.5. CONFLICTS OR DISCREPANCIES WITH GRADES SHALL BE BROUGHT TO THE ATTENTION OF THE ENGINEERIMMEDIATELY AND PRIOR TO PROCEEDING WITH WORK.6. ALL FINISH GRADES SHALL PROVIDE FOR NATURAL RUNOFF OF WATER WITHOUT LOW SPOTS OR POCKETS.7. ALL DISTURBED AREAS WILL BE RESTORED AND REVEGETATED.DRAWN BY:CHECKED BY:PROJECT NO.:SHEET:DRAWING NO.:DATE:BYDESCRIPTIONDATENO.L.P.L.P.C-119-3352SEPTEMBER 21, 202019-3352OWTS-MND.DWGONSITE WASTEWATER TREATMENT SYSTEMEAGLE CREST CONDO UNITS 1&226 WEST LAKE CREEK ROAD #'S 1&2EAGLE COUNTY, COLORADOPREPARED FORP.O. Box 724 EAGLE, CO 81631Tel (970) 390-0307www.LKPEngineering.comMARK & KIMBERLY DARRINGTON9/21/2020 P.O. Box 724, Eagle, CO 81631 Tel. 970-390-0307 www.LKPEngineering.com September 21, 2020 Mark & Kimberly Darrington, 24265 Choke Cherry Ln Golden, CO 80401-9203 mark_darrington@msn.com RE: Soil and Site Evaluation Replacement OWTS for two residences 26 W Lake Creek Rd 1 & 2 Eagle Crest Condo Units 1 & 2 Eagle County, Colorado Project No. 19-3352 Dear Mark: On September 11, 2020, we visited the subject property on 26 W Lake Creek Rd 1 & 2, Eagle Crest Condo Units 1 & 2, Eagle County, Colorado. The purpose of our site visit was to observe the site and select an area for the new, Onsite Wastewater Treatment System (OWTS). Jose, and excavator for Blue Monster Services, dug the profile holes. The replacement system will service two residences on the property. The two units have 7 combined number of bedrooms, with 4 bedrooms in Unit 1 and 3 bedrooms in Unit 2. The new system was designed in accordance with the OWTS #43 regulations, effective August 24, 2018. The proposed Onsite Wastewater Treatment System (OWTS) will consist of 2000-gallons, three compartments concrete septic tank by Valley Precast. The tank will have an effluent filter and an Orenco Pump. The Soil Treatment Area (STA) was designed for a mound system, due to high ground water table. The mound system was designed in compliance with the CDPHE Technical Guidance for Mounded Wastewater Treatment Systems. The maximum daily flow was calculated with 2 persons per bedroom for the first three bedrooms and one person per bedroom for the remaining four, for a total of 750 gallons per day. Per OWTS #43, we also used the 30% size adjustment for mound systems with less than 24-inches of imported sand, with low profile Quick 4 plus infiltrator chambers in a bed configuration, which brought the final maximum daily flow used in the design to 525 gpd. ! Preliminary Investigation G Address: 26 W Lake Creek Rd 1 & 2, Edwards, Colorado G Legal Description: Eagle Crest Condo Units 1 & 2, Eagle County, Colorado. G Existing Structures: There are two existing residential units and two detached garages on the site. G Location of existing and proposed wells on property: There are no existing wells on the property. The water to the property is provided by Lake Creek Metro. G ECEHD (Eagle County Environmental Health Department) records: There Page 2 of 4 P.O. Box 724, Eagle, CO 81631 Tel. 970-390-0307 www.LKPEngineering.com 26 West Lake Creek Road September 21, 2020 Project No. 19-3352 is an existing septic system on the property. The old system was repaired temporarily last year. G Topography: The topography of the leachfield site has variable slopes, ranging from about 25% on the west end, transitioning to about 16% slope under the area of the proposed bed with infiltrators, and about 12% slope on the downslope edge of the proposed mound. On the long side, the mound was aligned with the contours. G Soil Data: The soil exposed in the profile holes was as follows: Profile Hole #1 0 to18" Topsoil with cobbles and blocky clay with cobbles 18" to 5 ft" Clayey, sandy gravel with cobbles and boulders Ground Water at 4 feet, mottling at 3 feet below the existing grade Profile Hole 1 was excavated on August 1, 2019. Profile Hole No. 2 0 to 2 feet Topsoil 2 to 4.5 feet Slightly clayey, sandy gravel with cobbles and boulders with signs of mottling at 2 feet No free ground water encountered Type 2, >35% rock>2mm >50% rock >3/4" - Mound System Profile Hole 2 was excavated on September 11, 2020 Used design Long Term Acceptance Rate = 0.60 gpd/sf G Location of applicable setbacks in Table 7-1 ! Reconnaissance G Landscape position: The proposed leachfield site will be located in the Back /Side Position of the site and north of the proposed residence. G Topography: The topography of the proposed leachfield site is moderate. G Vegetation: The vegetation within the proposed leachfield site consisted of grass and a flower bed. The site surrounding the leachfield was similar with grass, and trees on the perimeter. G Natural and cultural features: The property is on the west bank of East Lake Creek, Edwards Colorado. The area is mountainous hills and Page 3 of 4 P.O. Box 724, Eagle, CO 81631 Tel. 970-390-0307 www.LKPEngineering.com 26 West Lake Creek Road September 21, 2020 Project No. 19-3352 meadows. G Current and historic land use: The current use is residential. It appears that previous use was possibly ranching and grazing for livestock. ! 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: Two profile holes were observed and logged on August 1, 2019 and September 11, 2020. ! 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: August 1, 2019 and September 11, 2020. G A graphic soil log, to scale: Attached G Setback distances in Table 7-1: Well Potable water Structure with basement Structure w/o basement PL Creek Surface Water Lined Ditch /pond Septic Tank Tank n/a >10’ n/a ~16’ ~65’+ 60’+ >10’ - STA n/a >25’ n/a ~36’ ~77’+ 69’+ >10’ 5’ G G Setback distances in Table 7-2: Items 1-4, observed. There is no well. The pond and the small ditch are lined. The limiting layer is the ground water mottling at about 2 feet. With the minimum of 12 inches of secondary sand in the mound system and the pressure dosing, this obstacle was resolved. 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 # Contours OR slope direction and % slope # Location of any visible or known unsuitable, disturbed, or Page 4 of 4 LKP Engineering, Inc. 26 West Lake Creek Road September 21, 2020 Project No. 19-3352 compacted soils # The proposed elevation of the infiltrative surface of the STA from benchmark or ground surface G Anticipated construction related issues: Ground water might be encountered in the excavation for the new septic tank, in which case anchoring of the tank should be implemented. Also, some grading might be necessary on the west side of the new tank in order to maintain the maximum backfill over the tank to no more than four feet. 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: There were no difficulties encountered during the site evaluation. The graphic soil logs are appended to this report. LKP Engineering, Inc. Luiza Petrovska, PE Enclosure J:\_WP X4-LKP\_2019\19-3352SOIL-SITE-EVAL-MOUND.DOCX 9/21/2020 Pump Selection for a Pressurized System - Single Family Residence Project 19-3352 Darrington / 26 W Lake Creek 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 20 40 1.50 None 11.4 20 40 1.50 4 60 40 1.25 1/8 4 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 64 27.8 4 1.5 4.4 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 1.5 0.9 0.0 0.3 0.2 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 2.1 2.1 18.6 22.9 gals gals gals gals Minimum Pump Requirements Design Flow Rate Total Dynamic Head 27.8 19.3 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: P.O. Box 724, Eagle, CO 81631 Tel. 970-390-0307 www.LKPEngineering.com August 17, 2021 Claire Lewandowski, REHS Environmental Health Specialist III Eagle County Public Health and Environment claire.lewandowski@eaglecounty.us RE: Replacement OWTS for two residences 26 W Lake Creek Rd 1 & 2 Eagle Crest Condo Units 1 & 2 Eagle County, Colorado Project No. 19-3352 Dear Claire: The following letter is more detailed explanation for the soil/site evaluation and the reasoning for the replacement of the existing septic system with the proposed new mound system on 26 W Lake Creek Rd 1 & 2, Eagle Crest Condo Units 1 & 2, Eagle County, Colorado. The replacement system will service the existing two units on the property. The two units have 7 combined number of bedrooms, with 4 bedrooms in Unit 1 and 3 bedrooms in Unit 2. There is one building sewer line running from the building to the septic tank. The existing system consists of two, 1200-gallon, septic tanks and soil treatment area consisting of trenches with infiltrator chambers. We have no information on the number of trenches or the number of infiltrators. Only two inspection ports were observed. The old leachfield is located on the lower part of the property, about 53 feet away from the creek. During the site/soil evaluation for the proposed new system, designed to replace the existing, old septic system, it was observed that the ground water table was shallow, at about 4 feet below the existing grade, with signs of mottling at two feet below the surface. For this reason and to protect the public and the environment, we recommended the mound system for the replacement of the existing, old leachfield with the distribution cell located as high up on the lot as possible, at about 69 feet away from the creek. The proposed Onsite Wastewater Treatment System (OWTS) will consist of 2000- gallons, three compartments concrete septic tank by Valley Precast with an effluent filter in the second compartment and an Orenco pump assembly in the third compartment for pressure dosing. The Soil Treatment Area (STA) was designed for a mound system, due to high ground water table. The mound system was designed in compliance with the CDPHE Technical Guidance for Mounded Wastewater Treatment Systems. The maximum daily flow was calculated with 2 persons per bedroom for the first three bedrooms and one person per bedroom for the remaining four, for a total of 750 gallons per day. Per OWTS #43, we also used the 30% size adjustment for mound systems with less than 24-inches of imported sand, with low profile Quick 4 plus infiltrator chambers in a bed configuration, which brought the final maximum daily 8/17/2021 Eagle County Government Mail - OWTS Documents for a septic Permit for Darrington Residence 26 W Lake Creek Rd 1&2 https://mail.google.com/mail/u/0?ik=da50768ddd&view=pt&search=all&permthid=thread-f%3A1706809422896337575&simpl=msg-f%3A17068094228…1/7 Claire Lewandowski <claire.lewandowski@eaglecounty.us> OWTS Documents for a septic Permit for Darrington Residence 26 W Lake Creek Rd 1&2 10 messages Luiza <luiza@lkpeng.com>Sat, Jul 31, 2021 at 8:04 AM To: "Claire Lewandowski (claire.lewandowski@eaglecounty.us)" <claire.lewandowski@eaglecounty.us>, Danielle Sell <danielle.sell@eaglecounty.us> Cc: "ECPHE (environment@eaglecounty.us)" <environment@eaglecounty.us>, "mailto:mark_darrington@msn.com" <mark_darrington@msn.com>, "Altitude Septic, LLC" <altitudeseptic@gmail.com> Hi Claire, Mark Darrington informed me yesterday that he had filed an application for a septic permit and Travor with Altitude Septic will is the installer. Attached are the design documents for the septic system replacement. Thank you, Luiza Petrovska, PE LKP Engineering, Inc. Civil/Geotechnical P.O. Box 724 Eagle, CO 81631 Cell: 970-390-0307 E-mail: luiza@lkpeng.com<mailto:luiza@lkpeng.com> Email2: lkpeng@centurytel.net<mailto:lkpeng@centurytel.net> www.lkpengineering.com<http://www.lkpengineering.com/> Privileged/Confidential Information may be contained in this message and any related attachments. If you are not the addressee indicated in this message (or responsible for delivery of the message to such person), you may not copy, review, distribute or forward the contents of this message to anyone. In such case, you should delete this message from your computer and kindly notify the sender by reply email. Thank you. 11 attachments IMG_0908STA Site.JPG 539K IMG_0914Prof-2.JPG 496K 8/17/2021 Eagle County Government Mail - OWTS Documents for a septic Permit for Darrington Residence 26 W Lake Creek Rd 1&2 https://mail.google.com/mail/u/0?ik=da50768ddd&view=pt&search=all&permthid=thread-f%3A1706809422896337575&simpl=msg-f%3A17068094228…2/7 IMG_0924Prof-2.JPG 534K IMG_0927Prof2.JPG 542K IMG_6508Prof-1.JPG 582K IMG_6510Prof-1.JPG 668K IMG_6514Prof-1.JPG 727K IMG_6523Prof-1.JPG 644K 8/17/2021 Eagle County Government Mail - OWTS Documents for a septic Permit for Darrington Residence 26 W Lake Creek Rd 1&2 https://mail.google.com/mail/u/0?ik=da50768ddd&view=pt&search=all&permthid=thread-f%3A1706809422896337575&simpl=msg-f%3A17068094228…3/7 19-3352Soil-site-eval-mound(STAMP).pdf 293K 19-3352PumpChart-26 W Lake Creek.pdf 124K 19-3352OWTS-OWTS(STAMP).pdf 977K Luiza <luiza@lkpeng.com>Sat, Jul 31, 2021 at 8:09 AM To: "Claire Lewandowski (claire.lewandowski@eaglecounty.us)" <claire.lewandowski@eaglecounty.us>, Danielle Sell <danielle.sell@eaglecounty.us> Cc: "ECPHE (environment@eaglecounty.us)" <environment@eaglecounty.us>, "Altitude Septic, LLC" <altitudeseptic@gmail.com>, Mark Darrington <mark_darrington@msn.com> [Quoted text hidden] winmail.dat 19K Danielle Sell <danielle.sell@eaglecounty.us>Mon, Aug 2, 2021 at 8:23 AM To: Luiza <luiza@lkpeng.com> Cc: "Claire Lewandowski (claire.lewandowski@eaglecounty.us)" <claire.lewandowski@eaglecounty.us>, "ECPHE (environment@eaglecounty.us)" <environment@eaglecounty.us>, "mailto:mark_darrington@msn.com" <mark_darrington@msn.com>, "Altitude Septic, LLC" <altitudeseptic@gmail.com> Received, thank you. We will get this in our queue for review. Danielle On Sat, Jul 31, 2021 at 8:05 AM Luiza <luiza@lkpeng.com> wrote: Hi Claire, Mark Darrington informed me yesterday that he had filed an application for a septic permit and Travor with Altitude Septic will is the installer. Attached are the design documents for the septic system replacement. Thank you, Luiza Petrovska, PE LKP Engineering, Inc. 8/17/2021 Eagle County Government Mail - OWTS Documents for a septic Permit for Darrington Residence 26 W Lake Creek Rd 1&2 https://mail.google.com/mail/u/0?ik=da50768ddd&view=pt&search=all&permthid=thread-f%3A1706809422896337575&simpl=msg-f%3A17068094228…4/7 Civil/Geotechnical P.O. Box 724 Eagle, CO 81631 Cell: 970-390-0307 E-mail: luiza@lkpeng.com Email2: lkpeng@centurytel.net www.lkpengineering.com [Quoted text hidden] -- Danielle Salinsky, M.S. Environmental Health Specialist I Eagle County Public Health and Environment Office: (970) 328-8755 Direct: (970) 471-6481 danielle.sell@eaglecounty.us Claire Lewandowski <claire.lewandowski@eaglecounty.us>Mon, Aug 2, 2021 at 3:12 PM To: Danielle Sell <danielle.sell@eaglecounty.us> Cc: Luiza <luiza@lkpeng.com>, "ECPHE (environment@eaglecounty.us)" <environment@eaglecounty.us>, "mailto:mark_darrington@msn.com" <mark_darrington@msn.com>, "Altitude Septic, LLC" <altitudeseptic@gmail.com> Thank you, we received the application and check. [Quoted text hidden] -- Claire Lewandowski, REHS Environmental Health Specialist III 970-328-8755 (office) 970-328-8747 (direct) environment@eaglecounty.us www.eaglecounty.us Mark Darrington <mark_darrington@msn.com>Sat, Aug 14, 2021 at 10:50 AM To: Claire Lewandowski <claire.lewandowski@eaglecounty.us>, Danielle Sell <danielle.sell@eaglecounty.us> Cc: Luiza <luiza@lkpeng.com>, "ECPHE (environment@eaglecounty.us)" <environment@eaglecounty.us>, "Altitude Septic, LLC" <altitudeseptic@gmail.com> Claire I need the permit Monday morning. We have the best design person in the country and contractor ready to go for a new system. Really best outcome to get new system vs living with old one! Mark J. Darrington Executive Vice President CBRE Hotels | Capital Markets O +1 303 628 1770 8/17/2021 Eagle County Government Mail - OWTS Documents for a septic Permit for Darrington Residence 26 W Lake Creek Rd 1&2 https://mail.google.com/mail/u/0?ik=da50768ddd&view=pt&search=all&permthid=thread-f%3A1706809422896337575&simpl=msg-f%3A17068094228…5/7 M +1 720 315 8138 From: Claire Lewandowski <claire.lewandowski@eaglecounty.us> Sent: Monday, August 2, 2021 3:12:48 PM To: Danielle Sell <danielle.sell@eaglecounty.us> Cc: Luiza <luiza@lkpeng.com>; ECPHE (environment@eaglecounty.us) <environment@eaglecounty.us>; mailto:mark_darrington@msn.com <mark_darrington@msn.com>; Altude Sepc, LLC <altitudeseptic@gmail.com> Subject: Re: OWTS Documents for a sepc Permit for Darrington Residence 26 W Lake Creek Rd 1&2 [Quoted text hidden] Claire Lewandowski <claire.lewandowski@eaglecounty.us>Mon, Aug 16, 2021 at 8:09 AM To: Mark Darrington <mark_darrington@msn.com> Cc: Danielle Sell <danielle.sell@eaglecounty.us>, Luiza <luiza@lkpeng.com>, "ECPHE (environment@eaglecounty.us)" <environment@eaglecounty.us>, "Altitude Septic, LLC" <altitudeseptic@gmail.com> Hi Mark, I appreciate your enthusiasm and I am sure that you understand that I have to work within the regulations to ensure that the home owners do not have problems in the future, such as meeting regulations if the county adopts a transfer of title program, I want the decision to be firmly supported. I am in communication with the CDPHE representative about the way the number of occupants are counted and should here back from him shortly. Thank you, Claire Claire Lewandowski, REHS Environmental Health Specialist III Eagle County Public Health & Environment 970-328-8747 [Quoted text hidden] Claire Lewandowski <claire.lewandowski@eaglecounty.us>Mon, Aug 16, 2021 at 5:19 PM To: Luiza <luiza@lkpeng.com> Cc: Danielle Sell <danielle.sell@eaglecounty.us>, Mark Darrington <mark_darrington@msn.com>, "ECPHE (environment@eaglecounty.us)" <environment@eaglecounty.us>, "Altitude Septic, LLC" <altitudeseptic@gmail.com> Hi Luiza, I heard back from Chuck Cusino and he is in agreement with your interpretation of the setback distance from the distribution cell to the stream, so we are good there. He is seeing the same issue I am with the daily flow rate and number of persons and as a short term rental unit it should be determined to be a change of use, therefore requiring a replacement to accommodate the expanded use regardless. Here's his reply, "these are two single family homes. The intent is to change the use to short term rentals. If that is the case, secon 43.4.8 of Reg. 43 would apply. It states: A permit must be required for the expanded use of an OWTS. The OWTS must be replaced or modified to handle the increased design flow unless it is determined that the exisng system is adequately designed and constructed for the higher design flow rate. As you have indicated that the property only has enough room for an OWTS sized for 10 persons, I would say that because of the change of use, the property could be restricted to a 10 person occupancy. They may state that they are not adding any addional bedrooms, etc., and the exisng system was permied for the current size of homes, however, I feel that the change of use puts this in a different category." 8/17/2021 Eagle County Government Mail - OWTS Documents for a septic Permit for Darrington Residence 26 W Lake Creek Rd 1&2 https://mail.google.com/mail/u/0?ik=da50768ddd&view=pt&search=all&permthid=thread-f%3A1706809422896337575&simpl=msg-f%3A17068094228…6/7 I have reached out to our legal team so that I fully understand how restricng occupancy would work, and so that I understand my liability in that I don't think I can permit this if it doesn't meet regulaons, without a variance process. If you are interested in a variance process please let me know, review that secon of the regulaons as the burden of proof is in that secon and is on the property owner and their hired PE. I will let you know when I hear something back from the EC Aorney's office. Thank you, Claire [Quoted text hidden] Luiza <luiza@lkpeng.com>Mon, Aug 16, 2021 at 5:26 PM To: Claire Lewandowski <claire.lewandowski@eaglecounty.us> Cc: Danielle Sell <danielle.sell@eaglecounty.us>, Mark Darrington <mark_darrington@msn.com>, "ECPHE (environment@eaglecounty.us)" <environment@eaglecounty.us>, "Altitude Septic, LLC" <altitudeseptic@gmail.com> Hi Claire, Thank you for the inquiry with Chuck and the reply. I’ll check the design with 13 people and see if some rotation might allow us to fit it on the property. Thank you! Sent from my iPhone Luiza Petrovska, PE LKP Engineering, Inc. P. O. Box 724 Eagle, CO 81631 Luiza@lkpeng.com 970-390-0307 On Aug 16, 2021, at 5:20 PM, Claire Lewandowski <claire.lewandowski@eaglecounty.us> wrote: [Quoted text hidden] Mark Darrington <mark_darrington@msn.com>Mon, Aug 16, 2021 at 8:19 PM To: Luiza <luiza@lkpeng.com>, Claire Lewandowski <claire.lewandowski@eaglecounty.us> Cc: Danielle Sell <danielle.sell@eaglecounty.us>, "ECPHE (environment@eaglecounty.us)" <environment@eaglecounty.us>, "Altitude Septic, LLC" <altitudeseptic@gmail.com>, Kimberly Darrington <alohadarringtons@gmail.com> Claire/Luiza, Sorry for the late response but I had a busy day. Unit #1 is NOT a short-term rental and never has been. We have had a long-term tenant in place for 3+ years (has been occupied by one couple-2 people, with only a visit from their son) and our intent is to keep it that way going forward. I can provide a copy of the 12-month lease to verify that. The lease prohibits the tenant from doing any short-term rentals within the unit. There is NO change of use. Please call me at your earliest convenience tomorrow to discuss. Mark (and Kimberly) Darrington 720-315-8138 8/17/2021 Eagle County Government Mail - OWTS Documents for a septic Permit for Darrington Residence 26 W Lake Creek Rd 1&2 https://mail.google.com/mail/u/0?ik=da50768ddd&view=pt&search=all&permthid=thread-f%3A1706809422896337575&simpl=msg-f%3A17068094228…7/7 From: Luiza <luiza@lkpeng.com> Sent: Monday, August 16, 2021 5:26 PM To: Claire Lewandowski <claire.lewandowski@eaglecounty.us> Cc: Danielle Sell <danielle.sell@eaglecounty.us>; Mark Darrington <mark_darrington@msn.com>; ECPHE (environment@eaglecounty.us) <environment@eaglecounty.us>; Altude Sepc, LLC <altitudeseptic@gmail.com> [Quoted text hidden] [Quoted text hidden] Mark Darrington <mark_darrington@msn.com>Mon, Aug 16, 2021 at 9:21 PM To: Luiza <luiza@lkpeng.com>, Claire Lewandowski <claire.lewandowski@eaglecounty.us> Cc: Danielle Sell <danielle.sell@eaglecounty.us>, "ECPHE (environment@eaglecounty.us)" <environment@eaglecounty.us>, "Altitude Septic, LLC" <altitudeseptic@gmail.com> Claire, I have aached of the lease for your review. You will see that there are only two tenants. Mark From: Luiza <luiza@lkpeng.com> Sent: Monday, August 16, 2021 5:26 PM To: Claire Lewandowski <claire.lewandowski@eaglecounty.us> Cc: Danielle Sell <danielle.sell@eaglecounty.us>; Mark Darrington <mark_darrington@msn.com>; ECPHE (environment@eaglecounty.us) <environment@eaglecounty.us>; Altude Sepc, LLC <altitudeseptic@gmail.com> [Quoted text hidden] [Quoted text hidden] Whitmore -Uelze Lease 26 W Lake Creek Unit 1 Final- May 2021.docx 32K 8/5/2021 IMG_0908STA Site.JPG https://mail.google.com/mail/u/0/?zx=ncewt5tddlwb#all/FMfcgzGkZZvBhGtHqLdSTXBTpKPgTfdH?projector=1&messagePartId=0.4 1/1 8/5/2021 IMG_0914Prof-2.JPG https://mail.google.com/mail/u/0/?zx=ncewt5tddlwb#all/FMfcgzGkZZvBhGtHqLdSTXBTpKPgTfdH?projector=1&messagePartId=0.4 1/1 8/5/2021 IMG_0924Prof-2.JPG https://mail.google.com/mail/u/0/?zx=ncewt5tddlwb#all/FMfcgzGkZZvBhGtHqLdSTXBTpKPgTfdH?projector=1&messagePartId=0.4 1/1 8/5/2021 IMG_0927Prof2.JPG https://mail.google.com/mail/u/0/?zx=ncewt5tddlwb#all/FMfcgzGkZZvBhGtHqLdSTXBTpKPgTfdH?projector=1&messagePartId=0.4 1/1 8/5/2021 IMG_6508Prof-1.JPG https://mail.google.com/mail/u/0/?zx=ncewt5tddlwb#all/FMfcgzGkZZvBhGtHqLdSTXBTpKPgTfdH?projector=1&messagePartId=0.4 1/1 8/5/2021 IMG_6510Prof-1.JPG https://mail.google.com/mail/u/0/?zx=ncewt5tddlwb#all/FMfcgzGkZZvBhGtHqLdSTXBTpKPgTfdH?projector=1&messagePartId=0.4 1/1 8/5/2021 IMG_6514Prof-1.JPG https://mail.google.com/mail/u/0/?zx=ncewt5tddlwb#all/FMfcgzGkZZvBhGtHqLdSTXBTpKPgTfdH?projector=1&messagePartId=0.4 1/1 8/5/2021 IMG_6523Prof-1.JPG https://mail.google.com/mail/u/0/?zx=ncewt5tddlwb#all/FMfcgzGkZZvBhGtHqLdSTXBTpKPgTfdH?projector=1&messagePartId=0.4 1/1 Page 2 of 2 LKP Engineering, Inc. 26 West Lake Creek Road August 17, 2021 Project No. 19-3352 flow used in the design to 525 gpd. With calculations for 2 persons per bedroom for the first three bedroom of each of the two units, the daily flow would have increased to 975 gpd, and with the 30% reduction would have been 683gps. This in turn would have required an additional 16 feet in length for the distribution cell. On the lot there isn’t an area that can fit those dimensions. I strongly believe, from an engineering and environmental point of view, that the proposed replacement system will protect the people and the environment, much better than the existing system located in the low laying portion of the lot. If you have any questions, please do not hesitate to call. LKP Engineering, Inc. Luiza Petrovska, PE Enclosure J:\_WP X4-LKP\_2019\19-3352OWTS - MEMO.DOCX 8/17/2021