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HomeMy WebLinkAbout1273 Lake Creek Rd - 210507401001Environmental Health
Department
P.O. Box 179
500 Broadway
Eagle, CO 81631-0179
Phone: (970) 328-8730
Fax: (970) 328-7185
Permit
Permit No. OWTS-019190-2020
Permit Type: OWTS Permit
Work Classification: New
Permit Status: Under Review
Issue Date: Not Issued Expires: N/A
On-Site Wastewater
Treatement System
Project Address Parcel Number
1273 LAKE CREEK RD, EDWARDS AREA,210507401001
Owner Information Address
William D Rey Margaret A Decker Phone:
Cell:
Email:
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
Blue Monster Service bluemonsterservice@gmai
l.com
(970) 390-1898OWTSPL-000055-20
20
Permitted Construction / Details:
Install the OWTS exactly as depicted in the LKP Engineering, Inc design stamped, signed, and dated July 24, 2020,
by Luiza Petrovska, PE. The system is designed to completely replace the existing failed septic system from 1972,
and serve the existing three bedroom single family residence. Abandonment of the existing tank must be completed
in conformance with ECPHA OWTS Regulation 43.9.C.
The OWTS consists of a Valley Precast 1000-gallon, three compartment septic tank (1,500 gallon total volume) with
an effluent filter and an Orenco PF500511 pump in the third compartment. Set the float to dose 90 gallons
approximately 27 feet to the manifold at the soil treatment area (STA). The STA consists of 48 Quick 4Plus Standard
Infiltrator chambers arranged in a bed configuration over two feet of unlined sand filter, with three rows of 16
infiltrators in each row. Maintain all elevations as in design drawing, as well and verify and report the elevation
difference between to pump discharge and the manifold to the design engineer.
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.
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
Claire Lewandowski
Date
CONDITIONS
1.
2.ALL INSTALLATIONS MUST COMPLY WITH ALL REQUIREMENTS OF THE EAGLE COUNTY PUBLIC HEALTH AGENCY ON-SITE WASTEWATER TREATMENT SYSTEM
REGULATIONS ADOPTED PURSUANT TO AUTHORITY GRANTED IN CR.S. 25-10-101, et seq., AS AMENDED
3.THIS PERMIT IS VALID ONLY FOR PERFORMING WORK ON OWTS ASSOCIATED WITH STRUCTURES WHICH HAVE FULLY COMPLIED WITH COUNTY ZONING AND
BUILDING REQUIREMENTS CONNECTION TO, OR USE WITH, ANY DWELLING OR STRUCTURE NOT APPROVED BY THE ZONING AND BUILDING DEPARTMENTS
SHALL AUTOMATICALLY BE A VIOLATION OF A REQUIREMENT OF THE PERMIT AND WILL RESULT IN BOTH LEGAL ACTION AND REVOCATION OF THE PERMIT
4.1.6(A)(1) EAGLE COUNTY PUBLIC HEALTH AGENCY ON-SITE WASTEWATER TREATMENT SYSTEM REGULATIONS REQUIRES ANY PERSON WHO CONSTRUCTS,
ALTERS OR INSTALLS AN ON-SITE WASTEWATER TREATMENT SYSTEM TO BE LICENSED
Monday, July 27, 2020 1
INSPECTION WORKSHEET (INSP-502784-2020)
FOR EAGLE COUNTY GOVERNMENT
OWTS-019190-2020Case Number:Case Module:Permit Management
08/24/2020 ApprovedInspection Status:Inspection Date:
OWTS Final InspectionInspection Type:Inspector:Claire Lewandowski
Job Address:Parcel Number:1273 Lake Creek Rd
Edwards Area, CO
210507401001
Company Name NameContact Type
Contractor Blue Monster Service Jose Gonzalez
Engineer LKP Engineering, Inc.Luiza Petrovska, PE
Owner William D Rey Margaret A Decker
CommentsPassedChecklist Item
True Orenco pump assembly completed by Valley Precast.Dosing Chamber/Tank - Dosing Chamber/Tank (when
applicable)
True Observed in complianceSeptic Tank - Septic Tank
True Received September 4, 2020Record Drawing - Record Drawing
True Received September 4 , 2020Record Photos - Record Photos
True Received September 4, 2020 by LKP EngineeringFinal Certification Letter - Final Certification Letter
True Squirt test performed during inspection showed adequate
pressure.
Pressure Distribution - Pressure Distributiion (when
applicable)
True Old septic tank brought to the Eagle County LandfillGeneral Plan - General Plan
True Observed in compliance with plans and regulationsSoil Treatment Area (STA) - Soil Treatment Area (STA)
True Blue Monster, Jose GonzalesIdentification of Systems Contractor - Identification of
Systems Contractor
September 22, 2020 Page 1 of 1P.O. Box 179, 500 Broadway, Eagle, CO 81631-0179
PROFILE HOLE #10 TO 1.5 FEET TOPSOIL1.5 TO 2 FEET BLOCKY CLAY WITH ROOTS2 TO 7 FEET SLIGHTLY CLAYEY, SANDYGRAVEL WITH SUBROUND COBBLES ANDBOULDERSNO GROUND WATER ENCOUNTEREDDESIGN CALCULATIONSDESIGN LONG TERM ACCEPTANCE RATE RATE = 0.8 GPD/SFNUMBER OF BEDROOMS: 3MAXIMUM DAILY FLOW = QMAXQmax = 3 BEDROOMS X 2 PERSONS/BEDROOM X 75 GALLONS/PERSON/DAYQMAX = 450 GPDSEPTIC TANKV = 1000 GALLONS FOR 2 TO 3 BEDROOMS PLUS 250 GALLONS FOR EACH ADDITIONAL BEDROOMUSE 1000-GALLONS THREE COMPARTMENTS, CONCRETE SEPTIC TANK WITH EFFLUENT FILTER,AND HIGH HEAD PUMP BY VALLEY PRECAST OR EQUIVALENT APPROVED BY THE ENGINEER.ABSORPTION AREABASED ON APPLICATION RATE:A = 450GPD/0.8GPD/S.F.A = 563S.F.QUICK 4 PLUS, STANDARD INFILTRATOR CHAMBER SYSTEM IN A BED CONFIGURATIONCONSTRUCTED OVER 2 FOOT OF UNLINED SAND FILTERSURFACE AREA OF ONE QUICK4, PLUS STANDARD INFILTRATOR CHAMBER = 12 S.F.USE 48 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 SHALLEXTEND TO OR ABOVE FINAL GRADE.4. EACH RISER LEAD WILL 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 BED WITH THE INFILTRATOR CHAMBERS SHALL BE INSTALLED LEVEL, ALONG THECONTOUR.7. EXCAVATE NINE (9) FEET WIDE BED8. THE BOTTOM AND THE SIDEWALLS OF THE BEDS SHALL BE RAKED (IF NEEDED) TO ELIMINATESMEARING.8. THE BED WILL BE EXCAVATED ADDITIONAL TWO FEET BELOW THE PROPOSED BOTTOM OFTHE INFILTRATOR CHAMBERS FOR THE SAND FILTER PLACEMENT.9.THE CLASSIFICATION OF THE SAND TO BE USED IN THE BED OF THE SOIL TREATMENT AREA(STA) MUST BE LESS THAN 30 DAYS OLD AND SUBMITTED TO THE ENGINEER PRIOR TO THESAND FILL PLACEMENT.10. MARK A LINE ON THE BED EXCAVATION WALLS AT THE 2-FOOT DEPTH FROM THE BOTTOMWITH SPRAY PAINT 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 THEMANUFACTURERS RECOMMENDATIONS.13. INSTALL THE PERFORATED PRESSURE DISTRIBUTION LATERALS ACCORDING TO THEMANUFACTURERS RECOMMENDATIONS.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 THESOIL TREATMENT 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 COUNTYENVIRONMENTAL HEALTH DEPARTMENT AND THE DESIGN ENGINEER A MINIMUM OF48-HOURS PRIOR TO BACKFILLING ANY PART OF THE SYSTEM TO SCHEDULE AN INSPECTION.PROFILE HOLE NO. 20 TO 1.2 FEET TOPSOIL1.2 TO 1.5 FEET BLOCKY CLAY WITH ROOTS1.5 TO 6.5 FEET SLIGHTLY CLAYEY, SANDYGRAVEL WITH SUBROUND COBBLES ANDBOULDERSNO GROUND WATER ENCOUNTEREDRECOMMENDED: PRESSURE DISTRIBUTION, WITH 2 FEET OF UNLINED SAND FILTERFROM PROFILE #1 - SAMPLE AT 4 FEET, RIBBON <1", TYPE 2A SOIL, >35%ROCK>2MM SANDY LOAM - LTAR = 0.5 GPD/SFmaximum LTAR = 0.8gpd/sfPROFILEHOLE -1PROFILEHOLE -2NORTH1000 GALLONS, THREE COMPARTMENTSCONCRETE SEPTIC TANK WITH EFFLUENTFILTER AND ORENCO PUMP ASSEMBLY BYVALLEY PRECAST OR EQUIVALENTCLEANOUT WITHIN 5FEET OF THE OUTSIDEOF THE HOUSEINVin=7363.5' THE EXISTING SEPTIC TANKTANK TO BE ABANDONEDACCORDING TO OWTS 43.9.C4-INCH DIAMETER SDR35 PVC,NEW BUILDING SEWER LINE(THE FIRST AND LAST 5 FEETTO BE AT 2 TO 5% SLOPETIE INTO THE EXISTINGBUILDING SEWER LINE(ASSUMED LOCATION)INVout=7363.25'INVin=7365'END CAP (TYP)FLUSHINGASSEMBLY(TYPICAL)DRILL ONE 1/4-INCH HOLE AT THE INVERTOF THE FAR END OF THE LATERAL FORDRAINING OF THE REMAINING EFFLUENTFROM THE PIPE BETWEEN DOSING ANDPLACE A ROCK UNDER IT TO PREVENTEROSION (TYPICAL)STA BED WITH THREEROWS OF 16 INFILTRATORCHAMBERS EACHQUICK 4 PLUS, STANDARDINFILTRATOR CHAMBER (TYPICAL)INSPECTION PORT (TYPICAL IN THE FIRST ANDLAST INFILTRATOR CHAMBER OF EACH ROW,INSTALLED IN THE OPENING OF THE CAPOPPOSITE OF THE PRESSURE LINE~66 FEET OF 1.5-INCH SCH40 PVCLATERAL, PERFORATED WITH5/32-INCH HOLES AT 4-FOOTINTERVALS AT THE TOP OF THE PIPE(TYPICAL)~6.6' END MANIFOLD, 1.5INCH DIAMETER SCH40 PVCABOUT 27 FEET TRANSPORT(EFFLUENT) LINE,1.5 INCHDIAMETER SCH 40PVCAPPROXIMATE AREA OFEXISTING LEACHFIELD22.62'17.00'27.40'16.00'21.24'59.85'67.13'46.65'PUMP SELECTIONA DISCHARGE PUMP CAPABLE OFDELIVERING 34.7 GPM AGAINST 15.6 FEET OFTOTAL DYNAMIC HEAD WILL BE USED. THEELEVATIONS BETWEEN THE PUMP INVERT ANDTHE INVERT OF THE DISTRIBUTION VALVESHOULD BE FIELD VERIFIED AND REPORTEDBACK TO THE ENGINEER.FOR THE DISCHARGE PUMP USE ORENCO,PF500511 HIGH HEAD EFFLUENT PUMP. THEPUMP DOSING WILL BE ON DEMAND WITH 90GALLONS PER DOSE.INFILTRATOR SYSTEMS INC.QUICK4 PLUS STANDARD CHAMBERPRODUCT SPECIFICATION(NOT TO SCALE)PRESSURIZED PIPE DRILLPOINTS LOCATIONS(2 PLACES)(EFFECTIVE LENGTH)TOP VIEWSIDE VIEWEND 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-FTEXISTING 3-BRMRESIDENCENEWCLEANOUTPROPOSEDINVin=7363.5'OWTS X-SECTION SKETCHN.T.S6.6' CENTRAL MANIFOLD1.5-INCH SCH40 PVCABOUT 27 FEET OF 1.5 INCH SCH40PVC TRANSPORT (EFFLUENT LINE)EL=7367.5'INVout=7363.25'UNKNOWNINVout =TBDLOWEST FLOOREL=7368.86' 4-INCH DIAM. SDR35PVC,NEW BUILDING SEWER LINEGROUND ELEVATIONVARIES FROM 7366.5 ONTHE EAST TO 7368' ON THEWEST END OF THE STAMANIFOLDINVin=7365'GROUNDELEVATION ~7369'BOTTOM OF ALLINFILTRATORSAT =7364.3'SAND FILTER2'9'Survey by:SAMUEL H. ECKER P.L.S.GORE RANGE SURVEYING LLCVENT 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 THE STA BED LATERALSREMOVE THE END CAPS OF THE FLUSHING ASSEMBLY IN ORDER TO FLUSH THE LATERALSCLEAN FROM ANY DRILLING DEBRIS OR DIRT. DO NOT INSTALL THE LAST INFILTRATORCHAMBER SO THAT THE PERFORATIONS ON THE LATERALS ARE OPEN IN ORDER TO RUN THESQUIRT TEST FOR THE MEASUREMENT OF THE 5-FT RESIDUAL HEAD (+/-10%). THEPREPARATIONS FOR THE SQUIRT TEST MUST BE READY FOR THE TEST TO BE DONE DURINGTHE FINAL INSPECTION.AFTER THE TEST, INSTALL THE LAST CHAMBER ON ALL ROWS.DRAWN BY:CHECKED BY:PROJECT NO.:SHEET:DRAWING NO.:DATE:BYDESCRIPTIONDATENO.L.P.L.P.C-120-3414JULY 24, 202020-3414OWTS.DWGREPLACEMENT OF EXISTINGONSITE WASTEWATER TREATMENT SYSTEMLOT 1 & EXTENSION, LAKE CREEK FILING 11273 LAKE CREEK ROADEAGLE COUNTY, COLORADOPREPARED FORP.O. Box 724 EAGLE, CO 81631Tel (970) 390-0307www.LKPEngineering.comBLUE MONSTER SERVICES, LLC7/24/2020
P.O. Box 724, Eagle, CO 81631 Tel. (970) 390-0307
August 25, 2020
Jose Gonzales
Blue Monster Service
P.O. Box 407
Gypsum, CO 81637
bluemonsterservice@gmail.com
RE: Inspection of Septic System Installation
William/Dedecker – 3 - Bedroom Residence
OWTS-Replacement
Lot 1 and Extension, Lake Creek Filing 1
1273 Lake Creek Road, Eagle County, Colorado
Project No. 20-3414– OWTS-019190-2020
Dear Jose:
At your request on August 13 and 24, 2020, we visited the William/Dedecker property on Lot 1 and
Extension, Lake Creek Filing 1, 1273 Lake Creek Road, Eagle County, Colorado. The purpose of our site
visits was to inspect the installation of the new septic system for the replacement of the old system.
The system was installed in overall compliance with the septic system design, Drawing No. 20-
3414OWTS.dwg, dated July 24, 2020. At the time of the inspection we observed the following:
Three new building sewer lines were constructed to connect the outlets of the existing three building
sewer lines, as shown on the attached as-built sketch. New cleanouts were also constructed within five feet of
the existing building, one on each of the lines. The building sewer lines were 4-inch diameter SDR35 PVC
pipe. They installed new, 1000-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 with a
filter in the third compartment. The control panel for the pump was on the east side of the house, near the
middle cleanout. The two south building sewer lines were connected with a “Y” half way down and the
combined building sewer line entered the south end of the septic tank. The north building sewer line was
connected to the side inlet opening of the septic tank. Two “T’s” were constructed in the inlet manhole opening
of the septic tank. The septic tank access ports had corrugated, plastic risers with secured, green, plastic covers.
The covers were secured with nuts, bolts and screws. All compartments had 48 inches risers, but they will be
cut down to grade, once the tank is backfilled.
The effluent line from the pump chamber to the end manifold and the manifold were 1.5-inch
diameter, sch40 pvc. The soil treatment area consisted of infiltrator chambers arranged in a bed with three rows
of 16 Quick4 plus, standard infiltrator chambers. Two feet of the onsite slightly clayey, sandy gravel with
cobbles and boulders were overexcavated from the bottom of the STA and replaced with two feet of secondary
sand media (the graph is attached to this report). Pressure dosing system consisting of 66-ft, 1.5-inch sch40
laterals perforated at the top with 5/32-inch holes at 4-ft intervals, suspended from the south 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. All inspection ports were installed (in the end caps of the first and last
chamber of each row of infiltrators).
According to the installer, Jose Gonzales, the septic tank installation and startup of the pump system
were done by Valley Precast and the old septic tank was pumped out, and taken to the Eagle County Landfill.
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\_2020\20-3414OSIQ4PLUSBED-SAND-PRESSUREREPLACE.DOCX
8/25/2020
GRADATION ANALYSIS TESTLABORATORY TEST REPORT DATALaboratoryClient:Location / Plant:Sample / Product:Sample Date:Lab Test Date:Job Number:SIEVESIEVE OPENING IN MILLIMETERSPERCENT PASSING THRU SIEVE3"751.537.53/4"193/8"9.5 100.0No. 44.75 98.0No. 82.36 84.0No. 161.18 67.0No. 300.6 44.0No. 500.3 19.0No. 1000.15 5.0No. 2000.075 1.9GRADATION RESULTS COMPARED TO PREFERRED AND SECONDARY SAND FILTER SPECIFICATIONSValue UnitsPreferred Sand ValuePass / Fail Preferred SandSecondary Sand ValuePass / Fail Secondary Sand1.00 millimeters0.204 millimeters 0.25 to 0.60FAIL0.15 to 0.60 PASS4.93 unitless ratio < or = 4.0FAIL< or = 7.0 PASS1.9 millimeters < or = 3 PASS < or = 3 PASSEffective Size - D10 - Diameter that 10 percent of the sample is finer than.ENTER INFORMATION IN BLUE CELLS102_01202-Eagle14111-Gypsum 1/4" Concrete Sand7-12-2020 to 8-12-2020Uniformity Coefficient (D60 / D10)Percent passing thru #200 SieveParameterD60 - Diameter that 60 percent of the sample is finer than.01020304050607080901000.01 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:\OWTS\19-3338-United17-12-2020 to 8-12-2020Sand Gradation Analysis Spreadsheet
P.O. Box 724, Eagle, CO 81631 Tel. 970-390-0307 www.LKPEngineering.com
July 24, 2020
Jose Gonzales
Blue Monster Service
P.O. Box 407
Gypsum, CO 81637
bluemonsterservice@gmail.com
RE: Soil and Site Evaluation
OWTS - REPLACEMENT
Lot 1 and Extension, Lake Creek Filing 1
1273 Lake Creek Road
Eagle County, Colorado
Project No. 20-3414
Dear Jose,
On July 3 and 8, 2020, we visited the William D. Rey and Margaret A. Dedecker Property on Lot
1 and Extension, Lake Creek Filing 1, 1273 Lake Creek Road, Eagle County, Colorado. The purpose of
our site visit on July 3, 2020 was to observe the site of the existing septic system and select an area for
the proposed new Soil Treatment Area for the replacement of the old leachfield. During the following
site visit, you excavated two profile holes.
From the information provided by Claire Lewandowski, REHS, Environmental Health Specialist
III with ECEHD, there was only a filing card on record with very limited information. According to the
filing card, the existing system consists of 750gallon, septic tank and 660 square feet leachfield., and it
was finalized on May 23, 1972.
While on site, we observed the old septic tank, just east of the existing 3-bedroom residence,
whose covers were open and level with the ground surface, with standing liquid almost to the top. We
understand that the old leachfield is just east of the old septic tank (actual location unknown) and it has
failed as well. The selected new site for the STA replacement is the area roughly parallel with the fence
on the northern property line. A survey prepared by Sam Ecker with Gore Range Surveying, LLC, was
used as a basis for the septic system design. Directions to the site are from US Hwy 6 in Edwards to
Lake Creek Road for about 1.2 mi. The property driveway is on the west side of the road.
The proposed new Onsite Wastewater Treatment System will consist of 1000-gallon, top seam,
three compartments, concrete septic tank, with an effluent filter and an Orenco pump, by Valley Precast.
The soil treatment area will consist of 48 Quick 4Plus Standard Infiltrator chambers arranged in a bed
configuration with three rows of 16 infiltrators each. The bed will have two feet of unlined sand filter
under the chambers. The system will be pressure dosed.
! Preliminary Investigation
G Address: The property address is 1273 Lake Creek Road, Eagle County,
Colorado.
G Legal Description: Lot 1 and Extension, Lake Creek Subdivision Filing 1, Lake
County, Colorado.
G Existing Structures: There was an existing 3-bedroom residence and a cabin
without plumbing on the site.
G Location of existing and proposed wells on property: There is no well on the
1273 Lake Creek Road, Rey - Dedecker Residence
July 24, 2020
Page 2 of 4
Project 20-3414
P.O. Box 724, Eagle, CO 81631 Tel. 970-390-0307 www.LKPEngineering.com
property. It is services by a community well for the subdivision, located on the
north side of Angela Lane in Lake Creek.
G ECEHD (Eagle County Environmental Health Department) records: Old record
card was received and reviewed. The old system was built in 1972.
G Topography: The topography of the leachfield site is flat to moderate with an
average slope of 5 to 10 percent. Drainage is to the north and northeast.
G Soil Data: The profile holes were observed on July 8, 2020. The soil
exposed in the profile holes was as follows:
Profile Hole #1
0 to 24 inches Topsoil over blocky clay and roots
2 to 7 feet Slightly clayey, sandy gravel with subround cobbles and
boulders
No ground water encountered
Profile Hole No. 2
0 to 18 inches Topsoil over blocky clay and roots
2 to 6.5 feet Slightly clayey, sandy gravel with subround cobbles and
boulders
No ground water encountered
A soil sample taken from Profile Hole # 1 at 48-inches, Sandy Loam, Type
2A, classified as R Type soil with more than 35% Rock (>2mm)
R-1, Option 1 with maximum LTAR = 0.8 gpd/sf, Pressure Distribution
with a 2-foot unlined sand filter in the soil treatment area.
G Location of applicable setbacks in Table 7-1
! Reconnaissance
G Landscape position: The proposed STA will be located in the Foot/Toe
Slope Position north from the existing residence (down gradient).
G Topography: The topography of the proposed leachfield site is flat to
moderate. The bed with rows of infiltrator will run along the contours,
along the northern property line and fence, just south from the utility
easement.
G Vegetation: The vegetation within the proposed leachfield site consisted of
a grassy meadow bordered by denser vegetation and old (mostly dead)
cottonwood trees. The site surrounding the leachfield was similar.
G Natural and cultural features: The property is located about 1000 feet east
1273 Lake Creek Road, Rey - Dedecker Residence
July 24, 2020
Page 3 of 4
Project 20-3414
P.O. Box 724, Eagle, CO 81631 Tel. 970-390-0307 www.LKPEngineering.com
from Lake Creek and about 1.5 miles south from Eagle River. It is also
about 1.3 miles southwest from Riverwalk at Edwards.
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: Two profile holes were observed and logged on July
8, 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: July 8, 2020.
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 - - ~16’ ~46’NPL - ~47’ -
STA n/a - - 23’ 17’NPL - ~60’ ~22’
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
# Contours OR slope direction and % slope
# Location of any visible or known unsuitable, disturbed, or
compacted soils
1273 Lake Creek Road, Rey - Dedecker Residence
July 24, 2020
Page 4 of 4
Project 20-3414
P.O. Box 724, Eagle, CO 81631 Tel. 970-390-0307 www.LKPEngineering.com
# The proposed elevation of the infiltrative surface of the STA from
benchmark or ground surface
G Anticipated construction related issues: Old and dying cottonwood trees
will have to be cleared.
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 log is appended to this report.
LKP Engineering, Inc.
Luiza Petrovska, PE
Enclosure
J:\_WP X4-LKP\_2020\20-3414SOIL-SITE-EVAL-REPLACEMENT.DOCX
7/24/2020
Pump Selection for a Pressurized System - Single Family Residence Project
20-3414-1273 Lake Creek / 3-bedroom house
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
27
40
1.50
None
6
6.6
40
1.50
3
66
40
1.50
5/32
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
0.68
51
34.7
3
1.9
5.5
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
2.4
1.8
0.0
0.1
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
2.9
0.7
20.9
24.5
gals
gals
gals
gals
Minimum Pump Requirements
Design Flow Rate
Total Dynamic Head
34.7
15.6
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: