HomeMy WebLinkAboutEngineer's OWTS Design PlanI
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i 36 QUICK 4INFlLTRATOR 12119) I ,f • _ �4
OR 28 ADS ARC36 UNITS (2 a 14
IN A TRENCH CONFIGURATION
TP (B070M OF TRENCHES TO EACH BE LEVEL; a
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PROPOSED
H 1-BEDRO0
M oLvrsalsraJBLTaNBOY �.
• :r1 RESIDENCE �iKSTAL_io00-GAL-ord "`.
1CC'SEUACENT SEPTICKFRON NELL TWO-COMPARTM,g
4 - TP TANK WITH AN EFFLUENT F,
4 0 S HAC PV FLTER IN THE OUTLET RISER
F4 f SEOFE TrfL"PI' (SEE SBBnCK NOTES)
P,
IAISIALL ,C j'Ay
CI EAHOLT OLTSIDE x
THE BUILDING
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NOTES:
PROPERTY LINES ARE BEYOND THE MAPPED EX. POND ^
AREA. 5o AIRAYi A
LOCATIONS OF ALL COMPONENTS MAY BE '.
VARIED AS NECESSARY AS LONG AS ALL
MINIMUM DISTANCES AND SLOPES MEE_
THOSE REQUIRED.
Item # 1000 Gallon Top Seam - 2CP
1000T-2CP
DESIGN NOTES
• Design per performance test per
ASTM C1227
• Top surface area 45.25 fix
• fc ® 28 days; concrete = 6,000 PSI
Min.
Installation:
• Tank to be set on 5" min. sand
bed or pea gravel
• Tank to be backfllled uniformly on
all sides in lifts less than 24 and
mechanically compacted
• Excavated material may be used for
backfll, provided large stones are
removed
• Excavation should be dewatered and
tank filled with water prior to being
put in service for installation with
water table less than 2' below grade
• Meets C1644-06 for resilient
connectors
• Inlet and Outlet identified above pipe
• Delivered complete with internal
piping
• 4' Maximum bury depth
ALLOWABLE BURY
(Based on Water Table)
WATER TABLE
ALLOWABLE
EARTH FILL
0' - 0'
2--0'
1'- 0'
3' -0'
2'-0'
3'-0'
3' - 0"
4' - O"
DRY •
4' - 0'
Fleldble
PVC TEE/RISER
Top
View
tD Grade
tyl Rubber
Sealant
WITH EFFLUENT
FILTER ON THE
TANK OUTLET
Section
View
Digging Specs
Invert
I Dimensions
J Net Capacity
Net Weight
11' Long x 7' Wide
56" below inlet
Inlet
Outlet
Length
I Width
I Height
Inlet SideiOutlet
Total
Lid
Tank
9380 Ibs -
Total
120010 Ibs
56"
I 53"
111"
6D"
fib"
687 gal
323 gal 1010 gal 2620 fibs
• • Distribution•
Risers and Lid
UD-BOX 6 & UD-BOX 6
L - 22.45" D-BOX SEAL
,�,Lro•oxool,�awml 4411eN81
kl
1 n r}, ,enF"vy SIDE CUT OUT
TO ACCEPT
PO YLOK SEAL
N
'N "
NI TEAR OUT FOR
4'SDR-35 OR
SCHD-40
NOT TO SCALE
UD-BOX 8' RISER \ I I4 REQUIRED
ROTO-FLOW 4"
Ia ) `
4"
ACCESS TO GRADE
'tvf
REQUIRED UD-BOX 12" RISER NOT TO SCALE
L OR
', � REQU9tED
�i POLYLOCK EQUALIZER
1 ' ` "V-NOTCH" WEIR
Y/aRSFNPEI
8
T
k
RIBA PROVIDE ' PIPE ID- �
FIT FORALL4D ,�-
20" COVER FOR RISER & D43OX
NOT TO SCALE
^P
GASKETED SEAL ON
LID & RISER
F12
SI1RfAP,F
\\ \ \ \ \
T P\I \ \ \
+I
/ SA D SILT ACA C M,
/ CARBONATE MATRIX, /
/ GRAVEL, COBBLES, CLAY,
/WHITE, TAN, DRY TO MOIST. /
SAND, SILTGRAVEL,
COBBLES, BROWN MOIST
}
SITE EVALUATION
1. SITE AND SOIL EVALUATIONS WERE PERFORMED BY:
DERICJ. WALTER, PE KEVIN DYE, PE
BOUNDARIES UNLIMITED INC. GEO QUEST
923 COOPER AVE., STE. 201 PO BOX 1372
GLENWOOD SPRINGS, CO 81601 RIFLE, COLORADO 81650
970,945.5252 970,318.6784
2. EVALUATION DATE(S): NOVEMBER 17, 2025.
3, 3.SOIL WAS CLASSIFIED BY THE GEOTECHNICAL ENGINEER USED QUEST (PROJECT #25-159,
NOVEMBER 17, 2025) AS USDA SILTY LOAM, TYPE 2A; WITH AN LTAR OF 0,50 GPD/SF.
4. - SETBACK REQUIREMENTS FOR A TREATMENT LEVEL 1 STA TRENCH/BED, UNUNED SAND FILTER
OR SEEPAGE PIT (PER TABLE 7-1) AND AN ADWF=300 GPD:
4.A. SPRING, WELL OR POTABLE CISTERN =100'
4.B. POTABLE WATER SUPPLY LINE =25'
4.0. STRUCTURE W/ BASEMENT/CRAWL SPACE =20'
4.1). STRUCTURE W/O BASEMENT/CRAWL SPACE =10'
4.E. PROPERTY LINE, PIPE OR LINED IRRIGATION DITCH =10'
TF. INTERMITTENT IRRIGATION LATERAL, INFILTRATION STRUCTURE=25'
TO. LAKE, WATER COURSE, IRRIGATION DITCH, STREAM OR WETLAND=50'
4.H. DRY GULCH, CUT BANK OR FILL AREA-25'
4.1. SEPTIC TANK=5'
4.J. RESTRICTIVE LAYER OR GROUNDWATER (VERTICAL): 4' (TREATMENT LEVEL 1, GRAVITY
FEED)
3, SETBACK REQUIREMENTS FOR THE SEPTIC TANK SHALL BE (PER TABLE 7-1):
3.A. SPRING, WELL OR POTABLE CISTERN=50'
3.13. POTABLE WATER SUPPLY LINE=10'
3.C. STRUCTURE W/BASEMENT/CRAWL SPACE-5'
3.D. STRUCTURE W/O BASEMENT/CRAWL SPACE=5'
&E. PROPERTY LINE, PIPE OR LINED IRRIGATION DITCH=10'
3.F. INTERMITTENT IRRIGATION LATERAL, INFILTRATION STRUCTURE =1 0'
3.G. LAKE WATER COURSE, IRRIGATION DITCH, STREAM OR WETLAND=50'
3.H. DRY GULCH, CUT BANK OR FILL AREA =I IT
3.1. STA TRENCH/BED, UNLINED SAND FILTER OR SEEPAGE PIT=5'
0 SITE E SOILS EVALUATION
Scale: N.T.S.
MAINTENANCE NOTES
1. TO ENCOURAGE THE HEALTH AND LONGEVITY OF THE OWTS SYSTEM, THE OWNER SHALL
CONSIDER THE FOLLOWING:
1.A. MINIMIZE THE AMOUNT OF WATER THAT GOES DOWN THE DRAIN, THE BETTER YOUR
SYSTEM WILL WORK.
1.13. MINIMIZE SOLIDS GOING DOWN THE DRAIN.
1.C. ELIMINATE GARBAGE DISPOSALS OR KEEP THE USE OF GARBAGE DISPOSALS TO A
MINIMUM.
1.D. MINIMIZE GREASE AND OILS THAT GO DOWN THE DRAIN.
1.E. USE LINT FILTERS ON LAUNDRY MACHINE DRAINS.
1.E KEEP SAND AND DIRT CUT OF THE BUILDING DRAIN.
1.G. AVOID FLUSHING SANITARY NAPKINS OR PAPER PRODUCTS OTHER THAN TOILET PAPER.
1.H. DO NOT USE LYE -BASED DRAIN UNCLOGGER CHEMICALS SUCH AS GRAINO, OVEN -OFF,
OR OTHER STRONG CLEANING AGENTS.
1.1. DO NOT PUT ANY "ROOT DETERRENTS" DOWN THE DRAIN.
U. DO NOT POUR PAINT THINNER, PESTICIDES, PAINTS OR PHOTO LAB CHEMICALS DOWN
THE DRAM
I.K. MINIMIZE USE OF CHLORINE BLEACH AND TOILET ADDITIVES. -
2. THE OWNER SHALL CONTRACT WITH A SEPTIC TANK INSPECTOR TO INSPECT THE TANK
ANNUALLY FOR GREASE AND SEDIMENT ACCUMULATION. THE INSPECTOR SHALL REMOVED
AND PROPERLY DISPOSED OF ACCUMULATED GREASE AND SEDIMENT AS NEEDED TO ENSURE
PROPER FUNCTION OF THE SYSTEM.
12" Su, NYLOPLAST H-20
SOLID COVER ASSEMBLY
REMOVABLE PVC CAP
FLUSH WITH SURFACE
24"x24"x6"CONCRETE
IN HANDSCAPE
EX_=0E
ATTACH REMOVABLE CAP OR
THREADED CLEANOUT ASSEMBLY,
INSTALL MARKER IF CAP IS TO
BE BURIED.
4" 9 PVC TWO-WAY
CLEANOUTTEE
�4"6 SEWER LINE
IN LANDSCAPE
TWO-WAY CLEANOUT
Scale: IN
p * °� y��y Phone: 719'395'6764 VALLEY
r p '� * �,1»v Phone: 719395.6764 INFILTRATOR QUICK 4,VELLESS EADVANC D
R SYSTEM:
N70'V
'dp�i�lidE iFax: 71�95'-3727 0 M L�.NLE i Fax: 719-395-3727 DRAINAGE SYSTEMS BIODIFFUSER P�,LJ1 CAST' Inc•• Webelte: www.valleyprecastoom InImf% � 4 Web8lte: WWW.v2IIeypreCBSt.cont (STANDARD), OR ENGINEER
PRECAST Inc. APPROVED EQUAL.
Buena Vista, Colorado Email: trontdesk@vaHeyprecastoom Buena Vista, Colorado Email: frontdeskQvaHeyprecastcom�
BOTTOM TO BE LEVEL AND FLAT OVER 36" MAX. -
ENTIRE AREA TO WITHIN 0.05'm. (TYR)
REMOVE ANY ENCOUNTERED INFLOW PIPE SHALL ENTER
BOULDERS AND BACKFILL WITH THE UPPER KNOCKOUTS
LOAMY SAND OR SANDY GRAVELS. DO
NOT USE COMPACTED MATERIALS.
DO NOT WALK ON OR COMPACT
BOTTOM OF TRENCH.
GRADE
PVC RISER
V MIN
2' MAX
TBD County Road 301, Parachute
County of Garfield,
State of Colorado
Parcel No: 2405 062-00-089
NOTES:
THIS PLAN SET IS INTENDED TO BE PLOTTED IN
COLOR. FAILURE TO DO SO MAY RESULT IN MISSING
NTA t INFORMATION CRITICAL TO THE PROJECT
'9
Rom'
Vicinity Map
SYSTEM DESIGN & CONSTRUCTION NOTES',
1. ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH GDPHE REGULATION 43 ONSITE WASTEWATER TREATMENT SYSTEM (OWTS) REGULATION, MOST CURRENT
EDITION AND LOCAL AGENCY REQUIREMENTS WHICH MAY OR MAY NOT SPECIFICALLY BE NOTED ON THE DRAWINGS. THE CONTRACTOR SHALL BE RESPONSIBLE FOR
KNOWING AND CONFORMING TO SUCH SPECIFIC
I IC DETAILS AS ARE REFERRED TO IN THE ABOVE MENTIONED REGULATIONS. THIS DRAWI
NG DOES NOT CONSTITUTE AN
OWTS PERMIT. A PERMIT MUST BE OBTAINED FROM APPROPRIATE LOCAL AGENCY. THE CONTRACTOR MUST CONTACT THE LOCAL AGENCY HEALTH DEPARTMENT
AND THE PROJECT ENGINEER FOR INSPECTIONS
I S OF THE CONSTRUCTED SYSTEM BEFORE BACKFILL. A REQUEST FOR INSPECTION BY THE PROJECT ENGINEER AND
THE COUNTY ENVIRONMENTAL HEALTH OFFICER MUST BE MADE AT LEAST 72-HOURS PRIOR TO THE DESIRED TIME OF BACKFILLING.
2. DEMAND CALCULATIONS (SEC.43.6.A.2.h)
2.A. ONE (1) BEDROOM PRIMARY RESIDENCE USING TREATMENT LEVEL 1 (111).
2.B. AVERAGE DAILY WASTEWATER FLOW (ADWF) AND ORGANIC LOAD RATE (BODS):
2.B.1. SINGLE FAMILY DWELLING: 75 gpdc & 0.20 BOD5Ibs/day
2.6.2. ADWF
2.13.2.1. PRIMARY RESIDENCE (1 BEDROOM) = 300 Opel (MINIMUM PER TABLE 6-1)
2.82.2. ADWF = 300 Opel
2.5.3. BODS = 0.201bs/day * 4 PERSONS = 0.8 Ibs/day
BOD, mg/L = BODs'1,000,000 = 0.8lbs/day*1,000,000 = 320 mg/L
ADWF*8.34 300 gpd*8.34
2.B.4. CBODS = BODS * 0.85 = 272 mg/L
3. SEPTIC TANK (SEC.43.9.B.2.a):.
3.A. INSTALL A 1,D00 GALLON TWO -COMPARTMENT SEPTIC TANK WITH EFFLUENT FILTER IN THE OUTLET RISER. (TABLE 9-1)
3. B. THE TANK IS NOT SUBJECT TO BUOYANCY.
4. ABSORPTION AREA CALCULATIONS:
4.A, THE ABSORPTION AREA SLOPES ARE GENTLY,
4.B. LONG TERM ACCEPTANCE RATE (LTAR) FOR TREATMENT LEVEL 1 (TL1) OF 0.50 gpd/SF (SEE SITE & SOILS EVALUATION NOTES/DETAIL).
4.0. MINIMUM SOIL TREATMENT AREA, A (PHASE 1):
A - ADWF = 300 = 600 S.F.
LTAR 0.50 gpd/S.F.
4.D. SIZE ADJUSTMENT FACTORS: GRAVITYTRENCH = 1.0; CHAMBERS = 0.7 (TABLE 10-1A).
4.E. A,adj = 600 SF * 1.0* 0.7 = 420 SF
4.F. GRAVELLESS CHAMBER TRENCH SYSTEM:
41.1. INFILTRATOR QUICK4: 420 SF/ 12 SFNNIT = 35 UNITS. INSTALL 36 UNITSIN IWO (2) TRENCHES CONTAINING EIGHTEEN (18) UNITS EACH.
4.P2. ADS ARC 36: 420 SF/ 15 SF/UNIT = 28 UNITS. INSTALL 26 UNITS IN TWO (2) TRENCHES CONTAINING FOURTEEN (14) UNITS EACH.
5. THIS SYSTEM IS SIZED FOR TYPICAL HOUSEHOLD WASTES ONLY. BACKWASH OR FLUSHING FLOWS FOR REVERSE OSMOSIS UNITS OR WATER SOFTENERS AND/OR
FILTERS SHOULD NOT BE INTRODUCED INTO THIS SYSTEM. BACKWASH AND FLUSHING FLOWS SHALL BE DISPOSED OF WITHIN A SEPARATE INFILTRATIVE SYSTEM.
6. CLEAN. OUTS ARE REQUIRED AT THE HOUSE AND AT ALL BENDS GREATER THAN 45' AND AT LEAST EVERY 100-FEET BETWEEN THE HOUSE AND THE SEPTIC TANK.
7. THE CONTRACTOR SHALL BE RESPONSIBLE FOR INSTALLING ALL WATER TIGHT COMPONENTS THROUGHOUT THE SYSTEM TO PREVENT INFILTRATION.
B. INSTALL RISERS AS NECESSARY TO BRING ALL ACCESS PORTS TO FINAL GRADE. PORTS SHALL BE MARKED IF CAPS ARE TO BE BURIED.
9. INSTALL 3-INCHES OF BLUEBOARD INSULATION, 3-FEET WIDE, OVER SEWER AND EFFLUENT PIPE WHEREVER DEPTH IS LESS THAN 3-FEET: UNDER NO
CIRCUMSTANCES SHALL COVER BE LESS THAN 2-FEET,
10. SITE PLAN INFORMATION FROM OTHERS. LOCATIONS OF ALL COMPONENTS MAY BE VARIED AS NECESSARY AS LONG AS ALL MINIMUM DISTANCES AND SLOPES
MEET THOSE REQUIRED.
GENERAL ABSORPTION AREA NOTES
1. INSTALL CHAMBER UNITS IN ACCORDANCE WITH MANUFACTURER'S RECOMMENDATIONS.
2. ABSORPTION TRENCHES SHALL BE 3' WIDE OR LESS AND PARALLEL THE GROUND SURFACE CONTOURS.
PARALLELING TRENCHES SHALL BE SEPARATED BY A DISTANCE OF 6' MIN.
3. THE BOTTOM OF THE ABSORPTION TRENCHES SHALL BE LEVEL AND THE BOTTOM AND SIDEWALLS MUST
BE RAKED TO REMOVE ANY SOIL SMEARS INCURRED DURING THE EXCAVATION. FAILURE TO DO SO. MAY
REQUIRE THE CONTRACTOR TO REPLACE THE ABSORPTION FIELD AT HIS/HER OWN EXPENSE.
4. DRAINAGE SWALES ARE TO BE PROVIDED ABOVE AND AROUND THE FIELD, AS NECESSARY, TO PREVENT
SURFACE RUNOFF FROM ENTERING ABSORPTION AREA.
5. NO EXCAVATION OF THE ABSORPTION FIELD IS TO BE DONE DURING WET WEATHER AND USE OF RUBBER
TIRE VEHICLES OVER THE ABSORPTION AREA IS STRICTLY PROHIBITED.
6. UNSUITABLE MATERIAL EXISTING WITHIN THE FIELD SHALL BE EXCAVATED AND BACKFILL SHALL CONSIST
OF IMPORTED LOAMY SAND OR SANDY GRAVEL. THE ENGINEER SHALL BE CONTACTED IF BEDROCK OR
GROUNDWATER IS ENCOUNTERED IN THE OVER -EXCAVATION.
7. TOPSOIL COVER MAY BE VARIED N-FOOT MINIMUM, 2-FOOT MAXIMUM) TO ALLOW FOR LANDSCAPING.
CIRCULAR IRRIGATION -STYLE VALVE'
BOX & COVER - LID COLOR PURPLE
OR GREEN - LABEL "SEWER"
FINISHED GROUND - MAINTAIN POSITIVE
SLOPE AWAY FROM TOP SURFACE OF
THE CHAMBER TRENCHES.
1 % MIN
6' (MIN.) -'
GRAVELESS CHAMBER ABSORPTION TRENCH
Scale: N.T.S.
FILL
STANDARD INSPECTION PORT, TYP. (4"B
PVC SOLID PIPE CUT TO FIT. LOCATE PER
PLAN VIEW. ATTACH REMOVABLE CAP OR
THREADED CLEANOUT ASSEMBLY.
\r PVC COUPLING FOR SUPPORT
`- zr
- Mq,(.SR
) L✓
4'L P'T'RATD PVC PIPE.
EXTEND PIPE TO REST ON
BOTTOM OF THE BED
BOUNDARIES
UNLIMITED INC.
CIVIL ENGINEERING,
LAND SURVEYING C BEYOND
923 Cooper Avenue, Ste.201
Glenwood Springs, CO 81601
tele:970.945.5252
www.bu-inc.com
SSSSSS
Engineer or Surveyor. Seal _
O\ \c�CNibq:�trc�
U; oe 4/6/26 A
37110
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Client Informatiom
PATTIARNETT
5338 COUNTY ROAD 309,
PARACHUTE, CO 81635
970.274.9775
Subsurface Utility Engineering (SUE)
Required Project: ND
If "Yes-, SUE Certification by:
Firm: NIA
Job #: NIA
Date: NIA
NORTH
0 50, 00'
Scale: 1" = 50'
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Agency Approval
Agency:
Dept:
By:
Date:
Comments:
Date
Revision
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