HomeMy WebLinkAboutPlans8
10
(RAS)
1Inds • 30 ft.
Cinder Blo
Manhole
Glenwoo
P
UNDERGROUND ELECTRIC
48.64'
40
4" PVC DISTRIBUTION PIPES
EXISTIING LEACH FIELD
TO BE ABONDONED
DISTRIBUTION BOX WITH BAFFLE
INSTALL LEVEL ON COMPACTED BASE.
INSTALL RISERS AND UD TO SURFACE
HIGH POINT TRANSITION
2" TRANSPORT PIPE TO 4" GRAVITY
TANK INFLUENT PIPE
4" PVC GRAVITY SEWER UNE
5' STUBOUT AT 296 SLOPE
PROPOSED 2" SEWAGE PRESSURE
PIPE FROM SEWAGE PUMP
DISCHARGE ASSEMBLY INSTALLED IN
EXISTING SEPTIC TANK
CONVERT EXISTING SEPTIC TANK
TO A SEWAGE PUMP BASIN.
INSTALL SIMPLE( SEWAGE PUMP
ASSEMBLY TO UFT RAW SEWAGE
TO NEW PRIMARY SEPTIC TANK
EXCAVATE TO TOP OF EXISTING SEPTIC TANK
& REMOVE EXISTING ACCESS UD & RISERS.
INSTALL 48" DIA. ECCENTRIC CONCRETE MH
RISER W/ IRON RING/UD, STEPS . OFFSET ON '
TOP SEPTIC TANK UD TO MIN. 2" ABOVE
EXISTING SURFACE GRADES.
EXISTING SINGLE COMPARTMENT
1250 GALLON CONCRETE SEPTIC 7
TANK WITH UD APPROX. 6" BELOW
SURFACE GRADE -
Single Story H use
9663 Highway 8
Basement
INSTALL 2 -COMPARTMENT 1250 -GALLON CONCRETE SEPTIC TANK
W/ CONCRETE RISERS AND UDS INSTALLED AT THE FINISHED
GRADE SURFACE.
INSTALL INLET SANITARY TEE AND OUTLET EFFLUENT FILTER
SANITARY TEE. DEPTH TO TOP OF TANK FROM PROPOSED GRADE
IS APPROXIMATLEY 1.5'.
INSTALL 4" RISER PIPE INSPECTION PORT
AT EACH END CHAMBER (TYP)
INSTALL CHAMBER END CAP ON ALL END
CHAMBERS (TYP)
ABSORPTION/TREATMENT FIELD
54 Q-4 CHAMBERS W/ END CAPS
3 TRENCHES W/ 4' SIDE TRENCH
WALL SEPARATION (TYP)
ABSORPTION/TREATMENT FIELD, INSTALL 3 GRAVITY CHAMBER
/TRENCHES WITH 18 CHAMBERS PER TRENCH FOR A TOTAL •
ABSORPTION AREA OF 648 SF (525 SF REQUIRED). THE SYSTEM
SHALL BE PLUMBED FOR EQUAL GRAVITY DISTRIBUTION. THE
CHAMBERS SHALL BE INSTALLED ON LEVEL GRADE IN EACH TRENCH.
THE BOTTOM OF EACH TRENCH TO BE EXCAVATED TO A MAX DEPTH
OF 3 FT WITHIN THE NATIVE LOAM. INSTALL WITH A MIN 12"
NATIVE BACKFILL COVER OVER TOP OF THE CHAMBERS. SEPTIC
FIELD FINISH SURFACE APPROX. 3" ABOVE DJACENT GRADES.
'a,cet-
ENGINEER TO INSPECT SOILS IN EXCAVATION AT TIME OF
CONSTRUCTION TO CONFIRM REPORTED SOIL CONDITIONS.
LAYOUT OF PROPOSED TRENCHES AND SOIL CONDITIONS TO
BE APPROVED BY THE ENGINEER PRIOR TO INSTALLATION OF
CHAMBERS. MODIFICATIONS TO THE DESIGN OF SYSTEM WILL
BE DEPENDENT ON ADDITIONAL OBSERVATIONS AND/OR
GEO-TECHNICAL EVALUATIONS DURING CONSTRUCTION.
Book ;
7. (
6080
OWTS RETROFIT AND UPGRADE SYSTEM PLAN
,20
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2877
•
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INSTALL #Z4" IRON RING & COVER
EX GRADE
DRIVEWAY CROSSING SECTION
ALL2"-_PRESSURE--PIPE-IN-
6" CMP, DIP, OR C--900 PVC SLEEVE
MMI LEVEL R.00R
CRETE BARREL SECTION
NTRIC CONIC SECTION
2" HOPE DR -9 OR SCHED-40 PVC
PRESSURE TRANSPORT PIPE
INSTALL 2" BLUE BOARD INSULATION
OVER PIPE W/ LESS THAN 3' MIN.
-DEPTH--OF-BURY
EXISTING GRADE
PROPOSED GRADE
DISTRIBUTION BOX
ABSORPTION/TREATMENT FIELD
2 TRENCHES W/ 18 44 CHAMBERS
PER TRENCH W/ END CAPS 4
INSTALL Wt
COVER OVER CHAMBERS NOT TO
EXCEED 3'
6070
BASMIIENT LEVEL ROOR
6060
DATUM ELEV
6055.00
r
SIMPLEX 2" SOLIDS HANDLING
SEWAGE PUMP 3 -HP
OFF FLOAT EL=
2 -COMPARTMENT 1250 -GALLON CONCRETE SEPTIC TANK
W/ MIN. 12" CONCRETE RISERS AND UDS
''-,EXISTING CONCRETE
SEPTIC TANK
1+00
1+50
SCALE:
HORZ. 1 "=20'
VERT. 1 "=20'
2+00
OWTS PROFILE
2+50
3+00
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DATE 04-09-2018
JOB NO. 18020.01
SHEET C1
30
Pump Selection for a Non -Pressurized System - Single Family Residence Protect
18020 :WIRKLER ; SE::'AGE PUI.IP 1250 TANK TO FIELD
GRAPHIC SCALE
16 �O
SO
Parameters
Discharge A.ssemoly Size
Transport Length
Transport Pipe Class
Transport Line Size
Distrioutrng valve Model
May Elevation LIt1
Design Flow Rate
FIDe Meter
Add-on Friction Losses
Calculations
2 00 inches
100 feet
40
2 00 inches
None
12 feet
10 gpm
None inches
0 feet
Transport velocity
Frictional Head Losses
0 0 fps
Loss through Discharge
Loss in Transport
Loss through watve
Loss through Flowmeter
Add-on Friction Losses
Pipe Volumes
02
02
0.0
00
00
feet
feet
feet
feet
Leet
vol of Transport Line
17 4 gals
Minimum Pump Requirements
Design Flow Rate 10 0
Total Dynamic Head 12 4
gpm
Leet
Total Dynamic Head, TDH (Feet)
-
•
43
Net Discharge (gpm)
'_7
ELECTRICAL NOTES (TYPICAL PUMP ASSEMBLY)
1. AN ORENCO comma PANEL SHALL BEI STALLED BY AN ELECTRICIAN IN
CnORDIM nONt WITH THE SYSTEMS IILSTALLER, REQUIRED 110 VOLT ELECTRIC SERVICE
BE PROVIDED TO THE PUMP. TIE POWER SUPPLY FOR THE PUMPS AMD CONTROLS
SHALL CONSIST OF (2) 20 AMP DOUBLE POLE CRICUIT FOR THE PUMPS AIM (1) 10 AMP
SINGLE PROLE CIRCUIT FOR CONTROLS. PANEL TO BE INSTALLED VII UNE OFSITE WITH
DOSING TANK MISTALL Lft'E OF TE DISCONMXT WITH DOSING TANK AS REQUIRED
BY CODE
2. THE ELECTRICIAN OR QUAURED 16Ti LLERSHALL INSTALL ELECTRICAL WIRES W
CONDUIT FROM TI'M CONTROL PANEL TO THE PUMP ASSEMBLYAJNCTION BOX IN THE
ACCESS RISER OVER THE UFT STATION TANK I?$TALL CODED WIRES PER CC)NTROL
PANEL DIAGRAM. INSTALL ALL WRNS FOR PUMPS AND CONTROLS WITH CONDUIT
WAR RRSER SPUCE BO>K ELECTRL4N TO COORDINATE W/ SYSTEM INSTALLER.
INSTALLATION CONSULTATION A QUALN4ED SERVILE PROVIDER.
120
(m )
1 lith NB a1 ft.
'53
•
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Orenco Systems'
Incorporated
( 7nrngrn� rl r lf;ry du
lt'ark/ Don 11:o :ru aver'
Item#
1 250T-2CP
1250 Gallon Top seam
Two Compartment
DE&GN NOTES
• Design per performance test per ASTM
C1227
• Top surfoce oreo 56.25 ft'
• t'c 0 28 days: concrete 6,000 PSI
)lir.
Inst®tiotion:
• Tank to be set on 5" min. sand
bed or peva gravel
• Tank to be bockfiiled uniformly on
an sines in efts less than 24" and
mechanically compacted
• Excavate() material may be used for
backlit!. provided large stones are
removed
• Excavotion should be dewatered and
tank idled with water prior to being
out in service for 'nstollOttOn with
water table less than 2' below grade
• Meets 01644-06 for resilient
connectors
• inlet and Outlet identified above pipe
• Deiivered complete with interroi piping
• PvC or concrete risers ovaiiobie
• Secondary safety screen avoiioble with
VC riser
• Option of pump or s'phon installed
ALLOWABLE BURY
(Based on Water Table)
WA''ER TABLE
AlLOWABIF
EARTH FILL
0'
- 0"
2 -
_ 0"
3' - 0-
2'
- 0"
3' 0.
3'
0'
DR'r
4' - 0 -
Digging Specs lrvect
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Clair Moes
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Boot
Top
View
Dimensions
13' long x 7' Wide Inlet Outlet Length
56" below inlet 56" 53" 135"
Net Copacity
Wdth Height Inlet Side Outlet Toto'
-a
Section
View
'iet We:ght
'onk Total
60" 68" 843 gal 416 gal 1259 go: 3120 lbs '0880 Ihs 14000 lbs
Water' d� �19139 784 2 Ca Rd 317
li Wastewater PD. 800ca5
• Systems Fax; (719) 395.3727 Buena Vida, 0081211
VALLEY . Products
j • Service b&W www.vaPeyprecaet nom
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4" SOLID PVC GRAVITY
DISTRIBUTION PIPES (TYP.)
TO ABSORPTION FEILD
DISTRIBUTION BOX LID
AT GROUND SURFACE
RISER SECTION
BAFFLE
4" DISTRIBUTION
GRAVITY LINE
FROM SEPTIC TANK
ical Height - 24"
w/24" Openings
Steps
12" 0.C.
r�
48" ID Barrel Section
Vertical Height -48"
uick Dirxamriert
+.
NVERT IN
8" AGREGATE BASE COURSE
COMPACTED SUBGRADE
DISTRIBUTION BOX DETAIL
N.T.S
SUITABLE BACKFILL COMPACT
TO 90% STANDARD PROCTOR
CLASS 6 ROAD BASE COMPACT
TO 95% STANDARD PROCTOR
CONCRETE GRADE BEAM
EXISTING TANK RETROFIT STUCTURE DETAIL
COMPACTED SUBGRADE
UNDISTURBED EARTH
CROWN FIELD TRENCH TO
DIVERT SURFACE WATER
REVEGA TA TION
TOPSOIL LAYER
Wirkler-Design Calculations OWTS
The existing OWTS is being upgraded with a replacement absorption field to
serve an existing three bed -bedroom residence. The onsite wastewater
treatment system (OWTS) is designed based on the design flow for a
3 -bedroom residencial capacity with expansion potential.
From the Regulation 43 usage table :
Minimum population based on 3 bedrooms = 6 persons.
Additional population based on bedrooms assuming 1 person per bedroom.
Gallons per day per person =75 gal/person/day, No peaking factor
Max. Design flow (Qd)gallons/day = (# of people) x (avg. flow)gal/person/day.
Design flow Qd = 6*75=450 gpd
Septic Tank Design:
Use a 1,500 gallon, two compartment
filter outlet sanitary tee in the second
sealed concrete risers and lids to the
existing septic tonk to serve as a raw
the the new septic tank.
Sub Surface Conditions and Testing:
concrete septic tank with an effluent
chamber. Tank shall be installed with
finish grade surface. Continue use of
sewage pump station to lift sewage to
Subsurface soil investigations and USDA soil texture method tests were
performed by Sopris Engineering. The soils in the area of the proposed
absorption field were sampled and characterized by application of the USDA
soil texture method analysis. The soils were tested to determine the hydraulic
loading rate and the appropriate absorptive surface depth in the native soils.
The soils below 6 to 8 inches of topsoil consist of medium dense silt loam
with moderate blocky to granular structure overlying deep cobbles and gravel
in a sandy clay loam matrix to the 7 foot depth explored. These soils appear
to consist of glacial outwash materials consisting of sand, silt, clay, gravels,
cobbles and small boulders.
The native soils sampled from 1-2 feet below the surface are characterized as
a soil type 2 consisting of silt loam texture with moderate blocky to granular
structure. This soil has an effective loading rate for conventional soil
treatment of 0.60 gal/S.F./day for a level 1 conventional treatment system.
The equivalent percolation rate is approximately 16-25 minutes per inch.
Increased quantities of cobbles and gravel are encountered at depths below 5
feet. No free water was encountered in excavations on site. Groundwater levels
are expected to be well below 10 feet below the existing surface grades. The
soils appear suitable for a conventional shallow absorption field consisting of
gravelless infiltration chamber units.
Treatment -Soil Treatment Unit/ Absorption System Design:
The treatment/absorption field is designed based on utilizing the effective
Long Term Acceptance Rate (LTAR) for the native soils and the application of
appropriate loading factors for a soil treatment unit (STU) system utilizing
gravity distribution to gravelless infiltrative chamber units in a trench
confirguration, for treatment across the native soil absorptive surface. The new
treatment system will consist of sewage collection and conveyance via a
sewage pump station that will transport raw sewage to a new septic tank for
detention and gravity distribution to the new STU via a distribution box.
Long Term Acceptance Rate (LTAR)
Considering the application of the new state regulation 43:
Receiving Wastewater Treatment Level 1; loading rate for silt loam is (0.60
gal./S.F./day) for soil type 2.;
Loading factors; (Table 10-2, Gravity application trenches = 1.0 ) and
(Table 10-3, gravelless chambers = 0.7)
A(sf) _(fid .: A = Area;
LTAR LTAR = 0.60 GaI/S.F./day for soil type 2, silt loam
Qd = flow (gal/day) = 450 gpd
L.F.1=1.0 Gravity Distribution
L.F.2=0.7 Chambers
A(sf) = 450 gpd x 1.0 x 0.7 = 525 S.F.
0.60 Gal/S.F./day
Number of quick -4 chambers:
525 S.F = 44 chambers Use 54 chambers
12 S.F./Chamber
54 chambers x 12 S.F./chamber provides 648 S.F. of absorption/treatment
area that equates to a Design Capacity of 555 gpd.suitable for an additional
bedroom on the the existing residence or to be used as paritial capactiy for a
future dwelling up to a 3 bedroom capacity with the addition of 2 additional
trenches and tank.
Use 54 Quick -4 chambers in three trenches 74' long by 3' wide with 18
chambers units per trench plus two end caps as delineated on the plan. The
septic tank effluent will be gravity distributed to the head of each chamber
row via individual distribution pipes from a distribution box. Additional soil
evaluation will be performed during construction to verify the soils in the
excavations.
i1.
IVF;t_
4" PVC INLET PORT
IN END CAP
S rM
BACKFILL WITH SCREENED
ONSITE SOILS FREE OF ROCKS IN
EXCESS OF 3" DIAMETER OR USE
3/4" TO 1.5' SCREENED ROCK
FILTER FABRIC
BACKFILL LAYER NATURAL ,t
ONSITE SOILS FREE OF' ROCKS
SCARIFY/TILL BOTTOM SURFACE TO
A DEPTH OF 3" AND RAKE LEVEL
LEACHING
CHAMBER
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NOTE: ALL CHAMBERS IN EACH TRENCH MUST BE INSTALLED
ON LEVEL GRADE. MAINTAIN 6' OF UNDISTURBED SOIL
BETWEEN TRENCHES. THE ELEVATION OF ADJACENT TRENCHES
MAY VARY. MAXIMUM DEPTH OF TRENCHES NOT TO EXCEED
30" BELOW PROPOSED SURFACE GRADES. INLET AND END
CAPS ARE TO BE INSTALLED ON EACH END CHAMBER ROW.
IF EXCESSIVE LARGE COBBLES OR BOULDERS ARE ENCOUNTERED
IN ANY PART OF THE EXCAVATION, OVER EXCVATE AND BACKFILL
WITH SAND OR SUITABLE SCREENED NATIVE SOILS.
LEACHING
CHAMBER
SELECT SOIL REPLACEMENT
AS NEEDED IF EXCESSIVE
COBBLES OR BOULDERS ARE
ENCOUNTERED. USE 4" FILTER
SAND LEVELLING COURSE.
UNDISTURBED EARTH SILT
LOAM SOIL.
CHAMBER TRENCH CROSS SECTION DETAIL
CONNECT INDIVIDUAL 4" DISTRIBUTION PIPE
TO HEAD OF EACH CHAMBER TRENCH (TYPICAL EACH
TRENCH). INSTALL CONNECTION AS NEEDED FROM
END OR SIDE INLET PORT OF EACH INFILTRATOR
CHAMBER END CAP.
CHAMBER END CAP
CHAMBER END CAP CONNECTION DETAIL
N.T.S.
N.T.S.
NATIVE, YARD OR LANDSCAPED
SURFACE
li
1.
/IV/ r I SUITABLE BACKFILL OR
CLASS 6 ROAD BASE
GENERAL NOTES:
1. THE OWTS AS SHOWN ON THE PLAN AND THE DETAILS WERE DESIGNED
BY SOPRIS ENGINEERING.
2. THE PROPOSED LOT CONDITIONS AND SURVEY INFORMATION WAS
PROVIDED BY THE SEXTON SURVEY COMPANY AND SOPRIS
ENGINEERING, LLC.
3. Primary Owner Name and Address: WIRKLER, NORMAN E & MARGARET
& CHRIS, 730 PO BOX 506, Carbondale, CO, 81623
4. LEGAL DESCRIPTION: SectioN 20 Township: 7 Range: 88 A TR IN LOTS
4 & 5 GARFIELD COUNTY, COLORADO 7 ACRES
5. Parcel Number: 2393-202-00-111
6. SITE Address: 009663 State Highway 82, Carbondale, CO 81623
OWTS SYSTEM NOTES
1. ALL MATERIALS AND INSTALLATION SHALL CONFORM TO STATE AND COUNTY
ONSITE WASTEWATER TREATMENT SYSTEM (OWTS) REGULATIONS.
2. IT IS THE RESPONSIBILITY OF THE CONTRACTOR TO CONTACT ALL UTILITY
COMPANIES FOR FIELD LOCATIONS OF UTILITIES PRIOR TO CONSTRUCTION
AND EXCAVATION.
3. ALL SEWER LINES TO BE SDR -35 OR SCHEDULE 40 P.V.C. PIPE UNLESS
NOTED OTHERWISE.
4. INSTALL A TWO-WAY CLEAN OUT ON THE SERVICE LINE FROM THE HOUSE
AND AN ADDITIONAL CLEANOUT WITHIN 100' SECTION OF EFFLUENT
DISCHARGE PIPE .
5. THE SEPTIC TANK SHALL BE INSTALLED LEVEL ON COMPACTED EARTH.
INSTALL WATERTIGHT RISERS AS NECESSARY TO BRING ALL REQUIRED
ACCESS POINTS TO THE FINISHED SURFACE GRADE. BACKFILL WITH
SUITABLE NATIVE SOIL FREE OF BOULDER AND ROCK IN EXCESS OF 3"
DIAMETER.
6. A SANITARY BAFFLE TEE IS REQUIRED ON THE SEPTIC TANK INLET AND
OUTLET. INSTALL THE INLET AND OUTLET TEES PLUMB AND IN A POSITION
TO ALLOW EASY INSPECTION AND MAINTENANCE OF TANK FROM THE TANK
RISERS.
7. INSTALL A 4" EFFLUENT FILTER ON THE 4" OUTLET TEE OF THE SEPTIC
TANK. THE FILTER SHOULD BE INSPECTED EVERY SIX MONTHS. THE
EFFLUENT FILTER SHALL BE MAINTAINED AND CLEANED WHEN THE TANK IS
PERIODICALLY PUMPED OR AS NECESSARY. INSTALL A SUITABLE EXTENSION
ON THE FILTER WITH A HANDLE TO BE WITHIN 6" BELOW THE ACCESS LID.
8. THE CONTRACTOR SHALL ENSURE THAT THE SEWER LINES, SEPTIC TANK AND
RISERS ARE WATERTIGHT. ALL PLUMBING FIXTURES AND OWTS COMPONENTS
SHALL BE INSTALLED AND MAINTAINED TO AVOID SURFACE OR GROUNDWATER
FROM ENTERING THE SYSTEM AND TO PREVENT LEAKAGE FROM THE SYSTEM.
IN-HOUSE PLUMBING FIXTURES SHALL BE MAINTAINED TO PREVENT EXCESS
WATER FROM ENTERING THE SEPTIC SYSTEM.
9. THE DIMENSIONS AND NOTES SHOWN ON THE PLAN INDICATE MINIMUM AREA,
LENGTH, WIDTHS AND SEPARATION DISTANCES FOR THE TRENCHES, BED OR
MOUNDED ABSORPTION FIELD.
10. THE ABSORPTION TRENCHES SHALL BE EXCAVATED TO LEVEL GRADE IN
NATIVE EARTH. THE TRENCH BOTTOM AND SIDEWALLS SHALL BE SCARIFIED
AND/OR RACKED IF SMEARING OCCURS. IF EXCESSIVE LARGE COBBLES OR
BOULDERS ARE ENCOUNTERED IN ANY PART OF THE EXCAVATION OVER 6"
FROM THE PROPOSED TRENCH BOTTOM SURFACE, OVER EXCAVATE AND
BACKFILL WITH SAND.
11.
THE LEACHING CHAMBERS SHALL BE INSTALLED LEVEL WITH A MINIMUM
COVER OF 10 INCHES NOT TO EXCEED 24 INCHES.
12. LEACHING CHAMBERS WILL BE PLACED IN THE EXCAVATION OVER THE NATIVE
SOIL OR SELECT SOIL REPLACEMENT. END CAPS SHALL BE INSTALLED ON
THE END CHAMBERS IN EACH TRENCH.
13. VERTICAL INSPECTION PORTS SHALL BE INSTALLED FROM THE PRE MARKED
HOLE ON THE TOP OF EACH END CHAMBER . (TYP. BOTH ENDS OF EACH
ROW) THE PORTS MAY HAVE THREADED CAPS AT GRADE.
14. THE CHAMBERS WILL BE BACKFILLED WITH EXCAVATED MATERIAL VOID OF
ROCKS, THE BACKFILL MATERIAL SHALL NOT EXCEED 2 1/2" DIAMETER AND
SHALL BE PLACED TO AT LEAST 6 INCHES ABOVE THE TOP OF THE
CHAMBERS. THE TOP OF THE PLACED BACKFILL SHALL BE COVERED WITH A
LAYER OF FILTER FABRIC. A MINIMUM 4" DEPTH OF TOPSOIL IS TO BE
PLACED ABOVE THE BACKFILL TO THE SURFACE & RE VEGETATED.
15. INSTALLATION OF LEACHING CHAMBERS SHALL BE IN CONFORMANCE WITH
THE MANUFACTURES INSTALLATION INSTRUCTIONS.
16. THE ABSORPTION TRENCHES/BED OR MOUND MUST BE GENERALLY MARKED
AT THE FOUR CORNERS WITH INSPECTION PORTS AND/OR BURIED REBAR.
THE FIELDS MUST BE PROTECTED FROM VEHICULAR AND LIVESTOCK TRAFFIC.
17. THE ABSORPTION FIELD SURFACES MUST BE SLOPED OR SLIGHTLY MOUNDED
TO DIVERT SURFACE DRAINAGE AWAY FROM THE FIELD.
18. 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.
100 feet from any well, spring or cistern.
50 feet from any stream or water course.
DISTRIBUTION SYSTEM NOTES:
1. AN EFFLUENT FILTER SHALL BE INSTALLED IN THE DISCHARGE TEE IN
THE SECONDARY COMPARTMENT OF THE SEPTIC TANK. WE RECOMMEND
THE INSTALLATION OF AN ORENCO SYSTEMS 4" EFFLUENT FILTER
FILTERED EFFLUENT WILL DISCHARGE TO A CONCRETE DISTRIBUTION
BOX WITH RISERS AND LID AT THE SURFACE.
2. THE DISTRIBUTION SYSTEM WILL BE INSTALLED TO ALLOW FOR
EFFLUENT TO BE EQUALLY DISTRIBUTED TO THE ABSORPTION TRENCHES
VIA INDIVIDUAL 4" DISTRIBUTION LINES CONNECTED TO THE HEAD OF
EACH CHAMBER TRENCH.
3. THE MINIMUM SLOPE OF THE DISCHARGE LINE FROM THE TANK TO THE
DISTRIBUTION BOX SHALL SHALL BE INSTALLED AT A MINIMUM 2%
SLOPE. THE INDIVIDUAL DISTRIBUTION LINES THE THE HEAD OF THE
TRENCHES SHALL BE INSTALLED AT A MINIMUM OF 2% SLOPE.
EXCAVATED MATERIAL COMPACTED
TO 90% STANDARD PROCTOR
COMPACTED SUBGRADE
TRENCH CROSS-SECTION FOR
PIPES. CONDUITS & SLEEVES
N.T.S.
TESTING, INSPECTIONS AND CONSTRUCTION MANAGEMENT:
1. ADDITIONAL GEOTECHNICAL EVALUATIONS AND INSPECTIONS BY THE ENGINEER
SHOULD BE PERFORMED DURING INITIAL STAGES OF CONSTRUCTION TO VERIFY
SOIL CONDITIONS AND OWTS DESIGN.
2. THE EVALUATIONS AND INSPECTIONS MAY RESULT IN MODIFICATIONS TO THE
DESIGN THAT MAY INCLUDE FIELD SIZE REVISIONS AND POSSIBLE SOIL
REPLACEMENT IN SELECT AREAS IF NEEDED. SUFFICIENT NOTICE TO THE
ENGINEER BY THE PROJECT MANAGER/CONTRACTOR NEEDS TO BE MADE IN
ORDER TO SCHEDULE THE SITE INSPECTIONS.
3. PRIOR TO CONSTRUCTION OF THE PERMITTED SYSTEM THE ENGINEER SHOULD
BE CONTACTED BY THE PROJECT MANAGER/CONTRACTOR WELL IN ADVANCE
TO PROVIDE 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.
4. COUNTY REGULATIONS REQUIRE THAT THE DESIGN ENGINEERS OF RECORD
PERFORM SITE INSPECTIONS OF THE PERMITTED SYSTEM DURING
CONSTRUCTION AND PROVIDE "AS -BUILT" DOCUMENTATION OF THE INSTALLED
SYSTEM TO THE COUNTY AFTER CONSTRUCTION IS COMPLETE. THE ENGINEER
SHOULD BE CONTACTED AND NOTIFIED OF THE CONSTRUCTION SCHEDULE.
5. OUR DESIGN AND RECOMMENDATIONS ARE BASED OUR SITE ASSESSMENT,
SOIL EVALUATION AND UPON INFORMATION SUPPLIED TO US BY OTHERS. IF
SUBSURFACE OR SITE CONDITIONS ARE FOUND TO BE DIFFERENT FROM
CONDITIONS ASSUMED OR INDICATED, WE SHOULD BE NOTIFIED TO EVALUATE
ANY EFFECT ON THE PROPOSED OWTS. IF THE COUNTY REQUESTS
CHANGES OR MODIFICATIONS TO THIS DESIGN, WE SHOULD BE CONTACTED TO
EVALUATE AND RESPOND TO THE REQUEST.
6. CONTRACTOR SHOULD REVIEW ANY CONDITIONS ON THE ISSUED PERMIT AND
COORDINATE WITH THE ENGINEER REGARDING CONSTRUCTION OF THE SYSTEM.
7. IF YOU HAVE ANY QUESTION OR NEED ANY ADDITIONAL INFORMATION,
PLEASE CALL PAUL RUTLEDGE AT SOPRIS ENGINEERING, 704 0311.
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DATE 0449-2018
JOB NO. 18020.01
SHEET C2