HomeMy WebLinkAboutSystem Drawings 10.07.20201 Design Calculations OWTS GENERAL NOTES:
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Design Flow 1. THE OWTS AS SHOWN ON THE PLAN AND T!• DETAILS WERE DESIGNED BY SOPRIS ENGINEERING:..
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J'� 1060 Gallon - 2CP
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I 1060-2CP Infiltrator® Poly Tank
The design flow is calculated as follows for the total current and anticipated future waste flows
of the existing single family dwelling. The replacement OWTS is designed for a treatment 2. THE PROPOSED LOT CONDITIONS BY SOPRIS ENGINEERING AND OWNERS.
capacity of 600 gallons per day based on the design wastewater flow to serve a 5-bedroom
3. THE EXISITNG LOT CONDITIONS PER COUNTY GIS DATA BASE, AERIAL MAPPING, LIDAR
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capacity residence in accordance with Table 6-2 values, Section 43.6, A.4. Regulation 43:
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127' TOP
TOPOGRAPHY AND SURVEY INFORMATION BY PEAK LAND SURVEYING LLC
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Minimum population based on 2 person per bedroom for the first 3 bedrooms = 6 persons and
1 person per bedroom for each additional 2 bedrooms = 2 persons for a total of 8 persons. 75 ¢ PRIMARY OWNER NAME & ADDRESS: JAM1 5 P r�FLZY JO1VA5 C'Lz avl_lt
gafjpersanjday, No PF 37�4 COUNTY RD ! I5
[;LENWooD SPRINGS. co III6O!
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Max. Design (Qd]garlans/day - (# of people) x (avg. flow}galJperson/day.
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Design flow Qd = 8'75=600 gpd 5. LEGAL SUMMARY: A TRACT IN LOT 1 SEC 20, LOTS 3 & 8, SECTION 29 T6S R88W 6TH PM
Septic Tank Design 6. 51TEADDRE55: 3724 CCIUNTY RD 1I5, GLENWOOD SPRINGS, CD $1601
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The septic tank capacity required for a minimum 48 hour retention time is calculated as follows:
V = 600 2 1,200 Use the 1,000
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Mid -Height Seam
gal/day = gallons. existing gallon, single compartment concrete 7. PARCEL NUMBER: 2187-292-00-077
tank and a new 1,060gallon 2-compartment reinforcedplastic septic tank installed in series for
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INSTALL NEW 24" DIA BY 3Q" TALL RIBBED PVC
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total septic tank capacity of 2,060 gallons. All tank to be installed with sealed ribbed PVC 8. NEW GARFIELD COUNTY OWTS PERMIT #: ISSUED
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EXISTINGrisers
BEDROOMA
RISERS WITH BOLT DOWN KIT &FIBER LIDS (TYP)g
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PM
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and fiber lass lids set to the finish lade surface. The art anal 7S0 aNan tank will be
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pumped, breached, partially crushed and backfilled for abandonment in place. 9. PREVIOUS CURRENT OWTS PERMIT NUMBERS 1094 & IK5? ISSUED 1981 & 1990
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EXISTING 1000 GA N SEPTIC TANK
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EXCAVATE /EXPOSE TANK LID & PIPE TO INSPECT,
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Tank Mika itY
Sub Surface Conditions and Observation 10. CONTRACTOR: GREAT LAKES CONSTRUCTION
A subsurface soil investigation and site assessment was performed by Sopris Engineering in on
DATE
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- a EXISTING CLEANOlJ1
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REPAIR &INSTALL NEW PVC RISERS, PIPE CONNECTIONS, SANITARY TEES & CLEANOUTS
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October 15, 2020. The soils from two profile pits, in the vicinity of the proposed STU field
OWTS SYSTEM NOTES
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envelope area were sampled and characterized by application of the USDA visual/tactile soil
EXISTING 4" PVC GRAVITY SEWER PIPE
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texture method analysis. The soils below 18- 24 inches of topsoil consist of medium dense silt
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1. ALL MATERIALS AND INSTALLATION SHALL CONFORM TO STATE AND COUNTY ONSITE
INSTALL 1060 GALLON 2-COMPARTMENT INFILTRATOR SEPTIC TANK WITH
REPAIR/RESET/REPLACE PIPINGJFITTINGAAS NECESSARY
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loam soil with less than 2% scattered gravel or rock content to 8 feet below the surface grades.
WASTEWATER TREATMENT SYSTEM (DWTS/ REGULATJONS.
SEALED RISERS AND LIDS INSTALLED AT TIE FINISHED GRADE SURFACE.
INSTALL INLET SANITARY TEE AND OUTLET EFFLUENT FILTER SANITARY TEE.
. RE INSTALL SANITARY TEE FOR ACCESS/MAINTENANCE
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and IpPNO sta,darae
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The soils a ear to be consistent across the site from observations in the excavated rofile its.
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2. IT IS THE RESPONSIBILITY OF THE CONTRACTOR TO CONTACT ALL UTILITY COMPANIES FOR
native soils sampled from 2-5 feet below the surface are characterized as a soil type 2 to
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DEPTH TO TOP OF TANK FROM PROPOSED GRADE IS APPRaXIMATLEY 30".
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INSTALL NEW TWO WRY CLEAN OUT, PIPE SECTION &
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• eie.lmum hurkl depth
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Itype
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2A loam texture fine This
has FIELD LOCATIONS OF UTILITIES PRIOR TQ CONSTRUCTION AND EXCAVATION.CONNECTION
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Minimum hurl) depth
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consisting of silt with granular to weak massive structure. soil
INSTALL INTERMEDIATE CLEAN OUT
FITTINGS AT INLET TO EX SEPTIC TANK
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vehicular trams l.ackg uariasn� �#
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an effective loading rate for conventional soil treatment of 0.5 Gal/S.F./day it a level 1
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EXISTAIG 4" PVC GRAVITY SEWER PPE
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• Exterior of manhole
craning: 'DANCER DO
cover inetud•r the fallowing tr+; -l. _
NOT ENTER: prism
End
3. ALL SEWER LINES TO BE 5DR-35 OR SCHEDULE 40 P.V.C.PIPE UNLESS NOTED OTHERWISE.
conventional treatment system. The soils from 5-7 feet below the surface are characterized as a
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WITH EXISTING INTERNAL CLEANOUT
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soil type 2A consisting of slightly sandy silt loam texture with weak massive structure having an 4. INSTALL A TWO-WAY CLEAN OUT ON THE SERVICE LINE FROM THE HOUSE AND AN
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PROPOSED 4" EFFLUENT PIPE TO DISTRIBUTION
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effective loadingrate of 0.5 Gal/S.F./day for a level 1 conventional treatments stem. The soils
YYADDITIONAL CLEANOUT WITHIN 100' SECTION OF EFFLUENT DISCHARGE PIPE .
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BOX 5DR 25@ MIN. 2% WITH 45°GRADE BREAK
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Digging Specs
Invert Dimensions
Net
Weight
below 7' to the depth of the 8.5 deep profile pit consist of slightly sandy silt loam with massive
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STEPS WITH CLEANOUTS AS REQUIRED
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t2' Lan . 7' Wide
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Outlet Length
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Width
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FILMRATOR'
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structure and slight evidence of mottling speckles, indicating minor redox conditions from 5. THE SEPTIC TANK SHALL BE INSTALLED LEVEL ON COMPACTED EARTH. INSTALL WATERTIGHT
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1094 gal
320 16s �,� IL
infrequent maximum high ground water conditions below 7 feet from surface. No free water RISERS AS NECESSARY TO BRING ALL REQUIRED ACCESS POINTS TO THE FINISHED SURFACE
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was encountered in the two profile pit excavations on site near the proposed STU area. Normal GRADE. BACKFILL WITH SUITABLE NATIVE SOk FREE OF BOULDER AND ROCK IN EXCESS OF 3"
EX 750-GALLON SEPTIC TANK:
TO BE PUMPED, & BACKFILLED
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Phone: 719-395-6764
Seasonal high Groundwater levels are expected to be below 10 feet from the existing surface DIAMETER.
grades. The soils are suitable fora shallow conventional shallow absorption field consisting of
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ABANDONED IN PLACE
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EXISTING 4-6'EDRC+OM HOUSE
C VALLEY Fax: 719-39 -3727
gravelless infiltration chamber units. 6. A SANITARY BAFFLE TEE 15 REQUIRED ON THE SEPTIC TANK INLET AND OUTLET. INSTALL THE
REMOVE RISERS & LID
❑ PRECAST, Inc. Wanalte: wnw.valleyprocastcom
INLET AND OUTLET TEES PLUMB AND IN A POSITION TO ALLOW EASY INSPECTION AND
PROPERTY LINE
CRUSH BREACH TANK
Buena Vista, Colorado Email: frontdesk +vallaypreca9tG m
Treatment -Soil Treatment Unit/ Absorption System Design MAINTENANCE OF TANK FROM THE TANK RISERS.
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The treatment/absorption field is designed based on utilizing the effective Long Term
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W. 1 •i 4" PVC SEWER PIPE @ 2%,
Acceptance Rate (LTAR) for the native soils and the application of appropriate loading factors 7. INSTALL A 4" EFFLUENT FILTER ON THE 4" OUTLET TEE OF THE SEPTIC TANK. THE FILTER
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USE SCHD-40 OR SDR-35 for a soil treatment unit system utilizing gravity distribution to gravelless chamber trenches. The SHOULD BE INSPECTED EVERY SIX MONTHS. THE EFFLUENT FILTER SHALL BE MAINTAINED
!_ �� REINFORCED PLASTIC SEPTIC TANK DETAIL new treatment system and absorption field will consist of grays*y distribution of septic tank AND CLEANED WHEN THE TANK IS PERIODICALLY PUMPED OR AS NECESSARY. INSTALL A
'RIS ENGINEERING,
CIVIL CONSULTANTS
502 MAIN STREET
CARBONC LE, CO 81623
(970) 704-0311
FAX: (970)-704-0313
distribution box SUITABLE EXTENSION ON THE FILTER WITH A HANDLE TO BE WITHIN 6" BELOW THE ACCESS
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CONCRETE 7-PORT OUTLET DISTRISUT1ON SOX
W/ BAFFLE INSTALLED LEVEL ON COMPACTED
EASE. INSTALL RISERS & LID TO :;121'1rACt GRADE
N.T.S.effluent via a to individual chamber trenches with treatment across the native
.v .- sail absorptive surface. Lk/.
a S. THE CONTRACTOR SHALL ENSURE THAT THE SEWER LINES, SEPTIC TANK AND RISERS ARE
The shallow STU trenches shall be installed with a maximum depth to the absorptive surface of
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A" PVC EFFLUENT PIPE @ MIN. 195,
USE SCHD-40 OR SDR-35
WATERTIGHT. ALL PLUMBING, FIXTURES AND OWTS COMPONENTS SHALL BE INSTALLED AND
3S inches from finish surface grades and barkfifled with approximately 3 inches of final grading MAINTAINED TO AVOID SURFACE OR GROUNDWATER FROM ENTERING THE SYSTEM AND TO
topsoil mounded over the trenches placed to allow positive drainage away from the surface.
PREVENT LEAKAGE FROM THE SYSTEM. IN-HOUSE PLUMBING FIXTURES SHALL BE
4" PVC DISTRIBUTION PIPES (TYP.) INSTALL CliAMI: EMDCAPS (TV.) Chambers shall be installed level in native soil. Each trench will be constructed level along the MAINTAINED TO PREVENT EXCESS WATER FROM ENTERING THE SEPTIC SYSTEM.
TO HEAD OF EACH TRENCH END CAP contours with successive trenches installed following natural contour grades accordingly. A
+ s, , minimum separation distance of 4 feet will be maintained between the individual trench
■ ' 9. THE DIMENSIONS AND NOTES SHOWN ON THE PLAN INDICATE MINIMUM AREA, LENGTH,
f - ■ sidewalls. WIDTHS AND SEPARATION DISTANCES FOR THE TRENCHES, BED OR MOUNDED ABSORPTION
PP sJ a �7- ; FIELD.
% .+ The engineer, prior to installation shall inspect the trench excavation to confirm sail conditions
INSTALL 4" RISER PIPE INSPECTION PORT EXTEND RISER W/ CAP
�� and installation procedures. Al! septic system components and trench installations are to be 10. THE ABSORPTION TRENCHES SHALL BE EXCAVATED TO LEVEL GRADE IN NATIVE EARTH. THE
approved by the Engineer to backfilling.
MIN. 1" ABOVE FINISH GRADE (TYP. EACH CHAMBER END CAP)
- prior TRENCH BOTTOM AND SIDEWALLS SHALL BE SCARIFIED AND/OR RACKED IF SMEARING
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• OCCURS. IF EXCESSIVE LARGE COBBLES OR BOULDERS ARE ENCOUNTERED J.'V ANY PART OF
` rl Field Sizing: THE EXCAVATION OVER 6" FROM THE PROPOSED TRENCH BOTTOM SURFACE, OVER
10.0' N� 74.0%' 1 Long Term Acceptance Rate (LTAR)EXCAVATE AND 6ACKFiLL WITH SAND,+ .
f ; [ Considering the application of the state regulation 43:
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L1 Receiving Wastewater Treatment Level 1; 11. THE LEACHING CHAMBERS SHALL BE INSTALLED LEVEL WITH A MINIMUM COVER OF 10
EXCAVATION DEPTH 2' MiN.-4' MAX. BELOW SURFACE Soil type 2A loading rate for silt loam with weak massive structure is (0.5 gal./S.F./day). INCHES NOT TO EXCEED 24
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10-02-2019
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GRADE MINi1iAllltf. 12" COVER C.NER TOP OF CHANiAERS .' Loading factors; (Table 10-2, Gravity application trenches = 1.0) and
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ABSORPTIONjTREATMENT FIELD
USE 70 QUICK-4 CHAMBERS IN 2 TRENCHES WITH 18 CHAMBERS UNITS PER
TRENCH AND IN 2 TRENCHES WITH 17 CHAMBERS UNITS PER TRENCH FOR A
FILL &GRADE FI=LD AREA APPROXIMATELY 3" ABOVE ' iti __ _ �+ (Table 10-3, gravelless chambers = 0.7) 12. LEACHING CHAMBERS WV_I. BE PLACED IN THE EXCAVATION OVER THE NATIVE SOIL OR
EXISTING SURFACE GRADES . - - SELECT SOIL REPLACEMENT OR ASTM-33 SAND LEVELING COURSE. END CAPS SHALL BE
TOTAL ABSORPTION AREA OF 840 S.F. THE SYSTEM SHALL BE PLUMBED FOR
-
I 70.0' ti A(sf) = Qd x L.F.1 x L.F.2 .: A Area; - INSTALLED ON THE END CHAMBERS IN EACH TRENCH.CC
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EQUAL GRAVITY DISTRIBUTION. THE CHAMBERS SHALL BE INSTALLED ON LEVEL
GRADE VN EACH TRENCH. THE BOTTOM OF EACH TRENCH TO BE EXCAVATED TO A
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INSTALL 4" RISER PIPE INSPECTION PORT EXTEND
RISER W/ CAP MIN. 1" ABOVE FINISH GRADE
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'\ LTAR LIAR = 0.5 Gal/S.F./day for silt loam
I t; I Qd = flaw (gal/day) - 600 gpd 13. VERTICAL :INSPECTION PORTS SHALL BE INSTALLED FROM THE PRE MARKED HOLE ON THE
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MAXIMUM AVERAGE DEPTH OF 36 INCHES BELOW THE EXISTING SURFACE
GRADES, WITHIN UPPER HORIZON OF SILT LOAM SOILS &
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(TYP. EACH CHAMBER END CAP)
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r' y . L.F.1=1.0 Gravity Distribution TOP OF EACH END CHAMBER CFAP. (TYP. BOTH ENDS OF EACH ROW) THE PORTS MAY HAVE
., - THREADED CAPS AT GRADE.
INCORPORATE GEOLOGICAL ASSESSMENT NOTES
THE THE NATIVE
BACKFILLED WITH A MINIMUM 12-INCHES OF COVER OVER THE CHAMBERS. THE
FINISH GRADE AiCROSS THE FIELD SHALL BE SLIGHTLY MOUNDED A MINIMUM
3-INCHES ABOVE EXISTING ADJACENT GRADES.
, _ 1 l e . L.F.2=0.7 Chambers
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'' ' i 90 <if) err • .- A(sf) = 600gpd x 1.Dx 0.7 = 840 S.F. 14. THE CHAMBERS WILL BE BACKFILLED WITH EXCAVATED MATERIAL VOID OF ROCKS, THE
BACKFILL DAATERIAL SHALL NOT EXCEED 2 1/2" DIAMETER AND SHALL BE PLACED TO AT
0.5 Gal/S.F./day 24.0'
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R.EXIT WELL, PERMIT # 113117, PROV!DI!i G WATER TO • LEAST INCHES ABOVE THE TOP OF THE CHAMBERS. THE TOP OF THE PLACED BACKFFLL
THIS' OPERTY LOCATED A€ PROXIMATELY 300' EAST". Number of Quick-4lnfiitrator chambers 4'x3'x12"chambers: SHALL BE COVERED WITH A LAYER OF FILTER FABRIC, A MINIMUM 4" DEPTH OF TOPSOIL IS
' \ 44. A .SOUTH EAST FROM PROPOSED cons FIELD SHOWN 1 840 S.F = 70 chambers; Use 70 chambers TO BE PLACED ABOVE THE BACKFILL TO TI •t SURFACE & RE VEGETATED.
- - ' - + 12 S.F./Chamber
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APPROXIMATE LOCATION PROFILE PIT (TYPi
, 15. INSTALLATION OF LEACHING CHAMBERS SHALL BE .IN CONFORMANCE WITH THE
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- _• -_ STU Layout MANUFACTURES INSTALLATION INSTRUCTIONS.
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ABSORPTION/TREATMENT REATMENT FIELD INSTALLATION NOTE:
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i. THE BOTTOM OF EACH TRENCH TO BE EXCAVATED TO A MAXIMUM DEPTH OF
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APPROXIMATE LOCATION EXISTING
ABSORPTION FIELD CHAMBER BED
TO 8E ABANDONED IN PLACE.
a Use 70 Quick-4 Infiltrator chambers in two trenches 70' long and two trenches 74' long each by
+ - # 16. THE ABSORPTION TRENCHES/BED OR MOUND MUST BE GENERALLY MARKED AT THE FOUR
3' wide with 17 and 1$ chamber units per trench respectively pies two end caps as delineated
�" +0 = CORNERS WITH INSPECTION PORTS AI D/OR BURIED REBAR. THE FIELDS MUST BE PROTECTED
on the plan or equivalent Arc/Bio Diffuser chamber trenches. The septic tank effluent will be
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distributed to the head of each chamber trench via individual distribution from a
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36-INCHES BELOW THE EXISTING SURFACE GRADES, WITHIN THE NATIVE SANDY SILT
LOAM SOILS. THE TRENCHES SHALL BE EXCAVATED TO THE SPECIFIED DEPTH WITH THE
BOTTOM ABSORPTIVE SURFACE SCARIFIED 8Y A FINAL PASS OF THE EXCAVATOR
BUCKET TEETH.
2. THE CHAMBERS SHALL BE INSTALLED ON LEVEL GRADE IN EACH TRENCH OVER THE
SCARIFIED SOIL . THE INSTALLED CHAMBERS & END CAPS SHALL BE COVERED WITH
NON -WOVEN FILTER FABRIC & BACKFILLED WITH A MINIMUM 12-INCHES OF COVER
OVER THE TOP OF THE CHAMBERS.
3. THE FINISH GRADE ACROSS THE FIELD SHALL BE SLIGHTLY MOUNDED ABOVE EXISTING
ADJACENT GRADES A MINIMUM 6-INCHES ALONG THE CENTER OF THE FIELD & A
MINIMUM 3-INCHES AROUND THE FE:t D PERIMETER ABOVE EXISTING GRADES.
�._ gravity pipes
' distribution box.
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tIr- , ' - \ + '� ! * _ . CONNECT INDIVIDUAL 4" DISTRIBUTION PIPE
4 = Y \� N AEL CONNECTION AS NEEDED FROM END OR SIDE INLETOF EACH CHAMBER TRENCH (TYPICAL EACH
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X-. I • *le`\Ilk PORT OF EACH �7FILTRATOR CHAMBER END CAP. •'�
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"I p I. CHAMBER END CAP �. +.:
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17. THE ABSORPTION FIELD SURFACES MUST BE SLOPED OR SLIGHTLY MOUNDED TO DIVERT
SURFACE DRAINAGE AWAY FROM THE FIELD.
1$. THE ENTIRE ABSORPTION FIELD SURFACE MUST BE RE VEGETATED.
19. THE ABSORPTION FIELD SHALL BE INSTALLED PER THE REQUIRED SETBACK DISTANCES: 10
feet from any property line.
25 feet from any potable water supply line.
20 feet from any occupied dwelling.
1OO feet from any well, spring or cistern.
104 feet from any stream or water course.
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NOTES:
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4. INSTALL 4" PVC RISER PIPE INSPECTION PORT AT EACH CHAMBER END CAP. FOR
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g•tVilly i j'Atif �'Cy� DISTRIBUTION SYSTEM
-
IPENETRATION
QUICK-4 CHAMBERS, INSTALL 4" PIPE RISER IN ONE OF THE PAIRED END CAP TOP
PENETRATION CUT OUTS OR FOR BIODIFFUSER INSTALL 4" PIPE RISER IN THE TOP
CUT OUT ON EACH END CHAMBER. EXTEND RISER WJ THREADED CAP
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'�3ttK+xi 1. FILTERED EFFLUENT WILL DISCHARGE TO A CONCRETE DISTRIBUTION BOX WITH RISERS
AND LI.D ATTHE SURFACE.
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MIN. 12' ABOVE FINISH GRADE. INSTALL FITTING AND/OR SCREWS TO HOLD BOTTOM
e 2. THE DISTRIBUTION SYSTEM WILL BE INSTALLED TO ALLOW FOR EFFLUENT TO 8E EQUALLY
44•
OF RISER MIN. 9" ABOVE INFILTRATIVE SURFACE (TYP.EACH CHAMBER ROW END CAP)
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CHAMBER END CAP CONNECTION DETAIL
ATGROt1ND SURFACE DISTRIBUTED TO THE ABSORPTION TRENCHES VIA INDIVIDUAL 4" DISTRIBUTION LINES
5. ENGINEER TO INSPECT EXCAVATION AT TIME OF CONSTRUCTION TO VERIFY SOIL
CONDITIONS & LAYOUT OF TRENCHES. ALL WORK TO BE APPROVED BY THE ENGINEER
• 1 \..� _ �+ ■ N.T.S.
I I X GRAPHIC SCALE * •
RISER SECTION CONNEETED TO THE HEAD OF EACH CHAMBER TRENCH.
BAFFLE 3. THE MINIMUM SLOPE OF THE DISCHARGE LINE FROM THE TANK TO THE DISTRIBUTION
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PRIOR TO BACKFILL OF TANK, PIPING AND CHAMBERS.
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4" DISTRIBUTION BOX SHALL SHALL BE INSTALLED AT A MINIMUM 1% SLOPE. THE INDIVIDUAL
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a 10 20
40 a
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GRAVITY LINE DISTRIBUTION LINES AT THE HEAD OF THE TRENCHES SHALL BE INSTALLED AT A MINIMUM
FROM SEPTIC TANK OF 2% SLOPE.
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TESTING, INSPECTIONS AND CONSTRUCTION MANAGEMENT:
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(IN FEET) # • 4" SOLID PVC GRAVITY
1 DISTRIBUTION PIPES (TYP.) 1. ADDITIONAL GEOTECI-WJCAL EVALUATIONS AND INSPECTIONS BY TI- E ENGINEER SHOULD BE
r 1 inch = 20 ft. - t ■ - TO ABSORPTION FEILD �INVER7IN PERFORMED DURING INITIAL STAGES OF CONSTRUCTION TO VERIFY SOIL CONDITIONS AND
s - OWTS DESIGN. SUFFICIENT NOTICE TO THE ENINEER BY THE
GN
IDENC:E
WOOD SPRIT
COLORADO
TMENT SYSTEI
iTRUCTION DOC'JI
- 8" AGREGATE BASE COURSE MANAGER/CONTRACTOR NEEDS TO BE MADE ORDER TO SCHEDULE THE SITE
COMPACTED SUBGRADE I'NSPECTION5.
DESIGN PLAN
DISTRIBUTION
BOX DETAIL 2. PRIOR TO CONSTRUCTION OF THE PERMITTED SYSTEM THE ENGINEER SHOULD BE
CONTACTED BY THE PROSECT MANAGER/CONTRACTOR WELL IN ADVANCE TO PROVIDE
N.T.S. ADEQUATE TIME TO DISCUSS THE SYSTEM COMPONENTS WITH THE CONTRACTOR, ANSWER
QUESTIONS, RESOLVE ANY CONFLICT ISSUES AND SCHEDULE INSPECTION SITE VISITS BASED
ON CONSTRUCTION PROGRESS,
CROWN FIELD TRENCH TO
VER, RES
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AaAP:OPL L.,.1vsm:ATculncvetLLOTi.sta-kiite.i:Te-TPUs=envR.stAllErm
To.saluY a slwix kK t WEST THLe 1-1PPt
tiff wow W
Cot NTT OFOMR u STATE LW COLORADO
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DIVERT SURFACE WATER
3. COUNTY REGULATIONS REQUIRE THAT THE DESIGN ENGnNEERS OF RECORD PERFORM SITE
l'iNSPECTIONS OF THE PERMITTED SYSTEM DURING CONSTRUCTION AND PROVIDE "AS -BUILT"
4" PVC INLET PORT
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IN END CAP
6' MIN
DOCUMENTATION OF THE INSTALLED SYSTEM TO THE COUNTY AFTER CONSTRUCTION I5
COMPLETE. THE ENGINEER SHOULD BE CONTACTED AND NOTIFIED OF THE CONSTRUCTION
SCHEDULE.
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NATIVE, YARD OR LANDSCAPED SURFACE
3' MIN
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BACKFILL WITH SCREENED
r 4. OUR DESIGN ANR7 RECOMMENDATIONS ARE BASED OUR SITE ASSESSMENT, SOSL
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,,... -:. ..'VEGATATIUN0
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ONSITE SOILS FREE OF ROCKS IN EXCESS
TOPSOIL LAYEP
EVALUATION AND UPON INFORMATION SUPPLIED TO US BY OTHERS. IF SL)3SURFACE OR
COUNTY RD
GARFIEL
ITE WASTEWA1
PERMIT APPLI
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OF 3" DIAMETER DR USE 3j4" TO 1.5'
4 SCREENED ROCK
SITE CONDITIONS ARE FOUND TO BE DIFFERENT FROM CONDITIONS ASSUMED OR
12"-36" INDICATED, WE SHOULD BE NOTIFIED TO EVALUATE ANY EFFECT ON THE PROPOSED OWTS.
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IF THE COUNTY REQUESTS CHANGES OR MODIFICATIONS TO THIS DESIGN, WE SHOULD BE
CONTACTED TO EVALUATE AND TO THE REQUEST.
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7
EXCAVATED MATERIAL COMPACTED FILTER FABRIC LEACHING
S. CONTRACTOR SHOULD REVIEW ANY CONDITIONS ON THE ISSUED PERMIT AND COORDINATE
12 WITH THE ENGINEER REGARDING CONSTRUCTION OF THE SYSTEM.
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TO 90% STANDARD PROCTOR
BACKFILL LAYER NATURAL ONSITE
CHAMBER
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SOILS FREE OF ROCKS
UNDISTURBED EARTH 5A!1IIDT'{
SILT LOAM SOIL,
6. iY YOU HAVE ANY QUESTION OR NEED ANY ADDITIONAL INFORMATION, PLEASE CALL PAUL
6 RUTLEDGE AT SOPRIS ENGINEERING, 704 0311.
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SCARIFY/TILL BOTTOM SURFACE TO A DEPTH
-
r
r ��% SUITABLE BACKFILL OR OF 3" AND PLACE MIN. 3" OF ASTM-33
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��`' ' 4,. 1'� CLASS 6 ROAD BASE SAND LEVELING COU SE. NOTE: ALL CHAMBERS IN EACH TRENCH MUST BE INSTALLED ON LEVEL
COMPACTED SUBGRADE GRADE OVER 3" ASTM 33 FILTER SAND LEVELING COURSE.
DEPTH Ck TRENCHES NOT TO EXCEED 36" BELOW PROPOSED
SURFACE GRADES. INLET AND END CAPS ARE TO 8E INSTALLED ON EACH
TRENCH CROSS-SECTION FOR END CHAMBER ROW. IF EXCESSIVE LARGE COBBLES OR BOULDERS ARE
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ENCOUNTERED IN ANY PART OF THE EXCAVATION, OVER EXCVATE AND
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SDR-35,26 O R SCHD-40 PIPES
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BACKFILL WITH SAND OR SUITABLE SCREENED NATIVE SOILS.
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N.T.S.
DATE: 10 07 2Q
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CHAMBER TRENCH CROSS SECTION DETAIL
N.T.S.
,.:D$ NO. 30169.01
PREVIOUS SURVEY PLAT VINCINITY AERIAL MAP
G:\2020\30169\CIVIL\CIVIL DWG5\DE\30169-DE-OWTS PLAN, DWG - Oct 08, 202D - 11,22am
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