HomeMy WebLinkAbout21053-OWTS PlanS81° 37' 18"W 2
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CabinWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWS
PROPERTY LINE (S89°41'17"E 1063.86')PROPERTY L
INE
(S16°47
'59"E
379
.15
')
PROPERTY LINE (N89°40'44"W 665.30')C/OCounty Road No. 312 (Garfield Creek)SS>>>PP
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696069506940693069206910690068906970
6980
6990
6964SITE BENCHMARK
FND MONUMENT
INSPECTION PORT
AT EACH END OF
EACH LATERAL, TYP.
4"Ø SCH.40 OR SDR35
PVC @ 2% MIN.
EXISTING CDPHE APPROVED 1,000-GALLON
TWO (2) CHAMBER SEPTIC TANK. INSTALL AN
EFFLUENT FILTER IN OUTLET TEE AND EXTEND
THE ACCESS RISERS TO THE SURFACE.
CLEANOUT AT
THE BUILDING
TIE TO PROPERTY CORNER TO
BE ASBUILT UPON COMPLETION
CONSTRUCT A 12" DEEP
SWALE ABOVE THE
ABSORPTION FILED
5' MIN.20'MIN.10' MIN.
PROFILE TEST HOLE, TYP.
THE WELL (SHARED WITH PROPERTY
TO THE NORTH) IS LOCATED
APPROXIMATELY 750' TO THE NORTH
OF THE ABSORPTION FIELD.25'MIN.EX. WATER SERVICE
4-WAY LEVELED DISTRIBUTION BOX
37110DERIC J O N WA
L
T
ERCOLOR A D O LICE
N
S
EDPROF
E
SSIONA L E N GINEER9/30/21
SITE EVALUATION
1.SITE EVALUATION WAS PERFORMED BY:
DERIC J. WALTER, PE
BOUNDARIES UNLIMITED INC.
923 COOPER AVE., STE. 201
GLENWOOD SPRINGS, CO 81601
970.945.5252
2.EVALUATION DATE(S): SEPTEMBER 2021.
3.SETBACK REQUIREMENTS FOR A TREATMENT LEVEL 1 STA TRENCH/BED, UNLINED
SAND FILTER OR SEEPAGE PIT (PER TABLE 7-1) AND AN ADWF < 1000 GPD:
3.A.SPRING OR WELL=100'
3.B.POTABLE WATER SUPPLY LINE=25'
3.C.POTABLE WATER SUPPLY CISTERN=25'
3.D.DWELLING=20'
3.E.PROPERTY LINE, PIPE OR LINED IRRIGATION DITCH=10'
3.F.INTERMITTENT IRRIGATION LATERAL, INFILTRATION STRUCTURE=25'
3.G.LAKE, WATER COURSE, IRRIGATION DITCH, STREAM OR WETLAND=50'
3.H.DRY GULCH, CUT BANK OR FILL AREA=25'
3.I.SEPTIC TANK=5'
3.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 OR WELL=50'
3.B.POTABLE WATER SUPPLY LINE=10'
3.C.POTABLE WATER SUPPLY CISTERN=25'
3.D.DWELLING=5'
3.E.PROPERTY LINE, PIPE OR LINED IRRIGATION DITCH=10'
3.F.INTERMITTENT IRRIGATION LATERAL, INFILTRATION STRUCTURE=10'
3.G.LAKE WATER COURSE, IRRIGATION DITCH, STREAM OR WETLAND=50'
3.H.DRY GULCH, CUT BANK OR FILL AREA=10'
3.I.STA TRENCH/BED, UNLINED SAND FILTER OR SEEPAGE PIT=5'
NORTH
ByRevisionNo.Date923 Cooper Ave., Ste. 201
Glenwood Springs, CO 81601
(T) 970.945.5252
www.bu-inc.com
Engineer or Surveyor Seal
Sheet
Client Information:
PROJECT NO.
File Name:
Designer:
Drafter:
Date:N:\PROJECTS\2021\21053-Appleton OWTS\dwg\21053-V-Topo.dwg 9/30/2021 2:41 PMSubsurface Utility Engineering (SUE)
Required Project:
If "Yes", SUE Certification by:
Firm:
Job #:
Date:987654329/30/21
DJW
DJW
21053-v-topo.dwg
21053
970.948.5520
New Castle, CO 81647
7625 County Road #312
Joshua & Ashlie Appleton
Garfield County, Colorado1.Parcel ID: 2183-322-00-078Onsite Wastewater Treatment System (OWTS)Appleton OWTSC.1
NO
N/A
N/A
N/A
SURFACE
12"-18"
TOPSOIL
7'-6"BROWN, VERY
CONSISTENT
FINE SILTY
CLAY
00 40'80'
Scale: 1" = 40'
ATTACH REMOVABLE CAP OR
THREADED CLEANOUT ASSEMBLY.
INSTALL MARKER IF CAP IS TO
BE BURIED.
FLOW
FINISH GRADE
4"Ø PVC RISER
4"Ø 45° BEND
4" PVC WYE
4"Ø SEWER LINE
Vicinity Map
Scale: N.T.S.
Site & Soils Evaluation
SOIL EVALUATION
1.SOIL EVALUATION WAS PERFORMED BY:
DERIC J. WALTER, PE
BOUNDARIES UNLIMITED INC.
923 COOPER AVE., STE. 201
GLENWOOD SPRINGS, CO 81601
970.945.5252
2.EVALUATION DATE(S): SEPTEMBER 2021 OF TWO (2) EXCAVATED PROFILE PITS
EACH TO A DEPTH OF APPROXIMATELY 7'-6" (SEE TYPICAL PROFILE).
3.EVIDENCE OF WATER: NONE. SOILS WERE MOIST, BUT NO IDENTIFIABLE
SEASONAL WATER TABLE LAYERS EXISTED.
4.COLOR: BROWN, CONSISTENT.
5.USDA SOIL STRUCTURE TYPE: MASSIVE.
6.USDA SOIL STRUCTURE GRADE: STRUCTURELESS (HAVING NO OBSERVABLE
AGGREGATION AND NO DEFINITE ARRANGEMENT OF THE SOIL PARTICLES).
4.USDA SOIL TEXTURE CALCULATOR RESULTS: SILTY CLAY.
4.1.% SAND: 5±
4.2.% CLAY: 55±
4.3.% SILT: 40±
5.USDA WEBSOIL DATA:
5.1.MAP UNIT: 23 - DETRA FINE SANDY LOAM, 12-25 PERCENT SLOPES
5.2.PLASTICITY INDEX: 7.5
5.3.LIQUID LIMIT: 27.5
5.4.SEWAGE DISPOSAL RATING: VERY LIMITED
6.ASSESSMENT: SOIL TYPE 4A WITH A TREATMENT LEVEL 1 LONG TERM
ACCEPTANCE RATE (LTAR) OF 0.15 gpd/SF.
Scale: N.T.S.
Cleanout NORTHMAINTENANCE 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.B.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.F.KEEP SAND AND DIRT OUT 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 DRAINO, OVEN-OFF, OR OTHER
STRONG CLEANING AGENTS.
1.I.DO NOT PUT ANY “ROOT DETERRENTS” DOWN THE DRAIN.
1.J.DO NOT POUR PAINT THINNER, PESTICIDES, PAINTS OR PHOTO LAB CHEMICALS DOWN THE DRAIN
1.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.
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 (1-FOOT MINIMUM,
2-FOOT MAXIMUM) TO ALLOW FOR LANDSCAPING.
Scale: N.T.S.
Typical Chamber Trench System
36" MAX.
UNDISTURBED NATIVE SOILS
6' (MIN.)
BOTTOM TO BE LEVEL AND FLAT OVER
ENTIRE AREA TO WITHIN 0.05'±. (TYP.)
REMOVE ANY ENCOUNTERED
BOULDERS AND BACKFILL WITH LOAMY
SAND OR SANDY GRAVELS. DO NOT
USE COMPACTED MATERIALS.
DO NOT WALK ON OR COMPACT
BOTTOM OF TRENCH.
FINISHED GROUND - MAINTAIN POSITIVE
SLOPE AWAY FROM TOP SURFACE OF
THE CHAMBER TRENCHES.
PVC COUPLING FOR SUPPORT
STANDARD INSPECTION PORT, TYP. (4"Ø PVC
SOLID PIPE CUT TO FIT. LOCATE PER PLAN
VIEW. ATTACH REMOVABLE CAP OR THREADED
CLEANOUT ASSEMBLY.
INFLOW AND OVERFLOW
PIPES SHALL ENTER THE
UPPER KNOCKOUTS
GRAVELLESS CHAMBER SYSTEM:
INFILTRATOR QUICK 4, ADVANCED
DRAINAGE SYSTEMS BIODIFFUSER
(STANDARD), OR ENGINEER
APPROVED EQUAL.
EX. GRA
D
E
1
0
%
±
1% MIN
3:1 M
A
X
G
R
A
D
E
FILL
CIRCULAR IRRIGATION-STYLE VALVE
BOX & COVER - LID COLOR PURPLE OR
GREEN - LABEL "SEWER"
3:1
M
A
X
G
R
A
D
E18" MIN1' MIN
2' MAX
1% MIN
FILL
SYSTEM NOTES
1.ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH CDPHE 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 DETAILS AS ARE REFERRED TO IN THE ABOVE MENTIONED REGULATIONS. THIS DRAWING DOES NOT
CONSTITUTE AN OWTS PERMIT. A PERMIT MUST BE OBTAINED FROM APPROPRIATE LOCAL AGENCY. THE ENGINEER MUST OBSERVE THE CONSTRUCTED SYSTEM
BEFORE BACKFILL AND PROVIDE A LETTER OF INSPECTION AS REQUIRED BY THE LOCAL AGENCY. A REQUEST FOR INSPECTION MUST BE MADE BY THE
CONTRACTOR AT LEAST 48-HOURS PRIOR TO THE EXPECTED TIME OF BACKFILLING.
2.DEMAND CALCULATIONS (SEC.43.6.A.2.h)
2.A.RECREATIONAL CABIN USING TREATMENT LEVEL 1 (TL1).
2.B.AVERAGE DAILY WASTEWATER FLOW (ADWF) AND ORGANIC LOAD RATE (BOD5):
2.B.1.SYSTEM SIZED FOR TWO (2) PERSONS.
2.B.2.ADWF = 75 gpdc * 2 PERSONS = 150 gpd
2.B.3.BOD5 = 0.20 lbs/day * 2 PERSONS = 0.40 lbs/day
BOD5 mg/L = BOD5*1,000,000 = 0.40 lbs/day*1,000,000 = 320 mg/L
ADWF*8.34 150 gpd*8.34
2.B.4.CBOD5 = BOD5 * 0.85 = 272 mg/L
3.SEPTIC TANK (SEC.43.9.B.2.a):
3.A.UTILIZE THE EXISTING 1,000-GALLON TWO (2)-COMPARTMENT TANK (PER TABLE 9-1).
3.B.THE TANK IS NOT SUBJECT TO BUOYANCY.
4.ABSORPTION AREA CALCULATIONS
4.A.GROUNDWATER WAS NOT ENCOUNTERED, THE SITE SLOPES AT THE OWTS ARE BETWEEN 2-6%. THEREFORE, THE SYSTEM SHALL BE A SHALLOW
GRAVELLESS CHAMBER SYSTEM IN A PARALLEL TRENCH CONFIGURATION.
4.B.SOILS WERE ANALYZED BY BOUNDARIES UNLIMITED INC (SEPTEMBER, 2021). THE LONG TERM ACCEPTANCE RATE (LTAR) IS ESTIMATED AT 0.15 gpd/SF
(SEE THE SITE & SOILS EVALUATIONS DETAIL).
4.C.MINIMUM SOIL TREATMENT AREA, A:
A = ADWF = 150 = 1000 SF
LTAR 0.15 gpd/SF
4.D.SIZE ADJUSTMENT FACTORS: GRAVITY TRENCH= 1.0; CHAMBERS= 0.7
4.D.1.A, adj = 1000 SF * 1.0 * 0.7 = 700 SF
4.E.GRAVELLESS CHAMBER SYSTEM:
4.E.1.INFILTRATOR QUICK4: 700 SF / 12 SF/UNIT = 59 UNITS IN TRENCH CONFIGURATION. USE 60 UNITS IN A 4 x 15 CONFIGURATION.
4.E.2.ADS ARC 36: 700 SF / 15 SF/UNIT = 47 UNITS IN A TRENCH CONFIGURATION. USE 48 UNITS IN A 4 x 12 CONFIGURATION.
5.THIS SYSTEM IS SIZED FOR TYPICAL DOMESTIC WASTES ONLY. BACKWASH OR FLUSHING FLOWS FOR REVERSE OSMOSIS UNITS OR WATER SOFTENERS AND/OR
FILTERS SHOULD NOT BE INTRODUCED INTO THIS SYSTEM.
6.CLEAN OUTS ARE REQUIRED AT THE HOUSE AND AT ALL BENDS 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.
8.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 5-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.
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SITE
I-70
BROWN,
SANDY-SILTY
CLAY
BROWN,
SANDY-SILTY
CLAY
4'-0"New Castle
Glenwood
Springs