HomeMy WebLinkAboutAs-Built OWTS Design Plan 11.01.2023O
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comer. NOTES
OPRIS ENGINEERING,
LLC.
5497
1250 Gallon Tv SZCP
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CONNECT INDIVIDUAL 4" DISTRIBUTION PIPE
1. THE OWTS AS SHOWN ON THE PLAN AND THE DETAILS WERE DESIGNED BY 50PRI5
CIVIL CONSULTANTS
TO HEAD DE EACH CHAMBER TRENCH {TYPICAL EACH TRENCH). ENGINEERING.
INSTALL CONNECTION AS NEEDED FROM END OR SIDE INLET
502 MAIN STREET
LOWER LEVEL FFE: 5595.33'
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PORT OF EACH INFILTRATOR CHAMBER END CAP.
2. THE PROPOSED LOT CONDITIONS BY SOPRIS ENGINEERING
CARBONDALE, CO 91623
I970j 704.0311DOOR
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TO UPPER DECK
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FAX- (970)-704-0313
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3. THE EXI5ITNG LOT CONDITIONS PER COUNTY G15 DATA BASE, LIDAR TOPOGRAPHY AND
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AERIAL MAPPING.
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CHAMS R END CAP
4. PRIMARY OWNER NAME & ADDRESS: NILS5ON, STEVEN & CHRISTINE, 787 CANYON CREEK
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S. LEGAL SUM MARY: Section: 12 Township.- 5 Range: 92 Subdivision: RIVERVIEW RANCH
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SUBDIVISION Lot: 2 AMENDED, AS PER SECOND AMENDED FINAL PLAT RECEPTION NO.
INSTALLED 4" 5DR-35
PVC SEWER PIPE @ 296
550z 18" 45" STEP FITTINGS
UPPER LEVEL FFE:
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965010 5.608 ACRES
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4" CLEANOUT
INTERIOR EJECTOR PUMP
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CHAMBER END CAP CONNECTION DETAIL
N.T.S.
6. SITE ADDRESS: 167 SHORE DR, SILT, CO 81652
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BASIN ASSEMBLY W/ INTERIOR
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7. PARCEL NUMBER: 217912301002`�0#VAL.
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B. NEW GAR FIELD COUNTY PERMIT # 5EPT-O8-22-7743
DESIGNED BY
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9. CONTRACTOR:
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CROWN FIELD TRENCH TO
DRAWN BY
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DIVERT SURFACE WATER
CHECKED BY
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NILES-ON DESIGN CALCULATIONS OWTS
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4" PVC INLET PORT
THE PROPOSED ONSITE WASTEWATER TREATMENT SYSTEM (OWTS) IS BEING INSTALLED
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IN END CAP
TO SERVE A SINGLE FAMILY RESIDENCE. THE PROPOSED RESIDENTIAL STRUCTURE HAS 4
DATE: 11-01-23
3' MIN 4' MIN
BEDROOMS PROPOSED WITH A DESIGN FLOW BASED ON A TOTAL RESIDENTIAL
32029
ELEVATION NOTES:
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POPULATION OF 7 PERSONS. THE RE51DENTIAL FACILITY OWTS CAPACITY DESIGN IS BASED
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BACKFILL WITH SCREENED EVEG.ATAi"lCiN
ON DESIGN FLOW FOR A 4-BEDROOM SINGLE FAMILY RESIDENCE.
100 = 5505.00'
G
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ONSITE SOILS FREE OF ROCKS IN EXCESS TOPSOIL NYC
FFE MAIN LEVEL: 5505.125
55a 3
OF 3" DIAMETER OR USE 3/4" TO 1.5' 12"-24"
SCREENED ROCK
THE DESIGN FLOW TREATMENT CAPACITY IS CALCULATED AS FOLLOWS FOR A MINIMUM
Pho„e: 71194954M
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EQUIVALENT 2-BEDROOM SINGLE FAMILY RESIDENCE.
FFE LOWER LEVEL: 5495.33'
FIX 71941654M
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FROM THE REGULATION 43 USAGE TABLE:
FFE GARAGE BAY 1: 5503.57'
PI:2+07.70
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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 BEDROOM. 4TH
E IC TANK DETAIL
FILTER FABRIC LEACHING 32"
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FFE GARAGE BAY 2: 5S03.67'
GARAGE FFE: 5503.66' d �
CHAMBER
BEDROOM = 1 PERSON FOR ATOTAL OF 7 PERSONS. GALLONS PER DAY PER PERSON =75
BACKFILL LAYER NATURAL ONSITE
GAL/PERSON/DAY, NO PEAKING FACTOR
SOILS FREE OF ROCKS 6
MAX. DESIGN FLOW (QD)GALLONS/DAY = (# OF PEOPLE) X (AVG. FLOW)GAL/PERSON/DAY.
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SCARIFY/TILL BOTTOM SURFACE TO A DEPTH UNDISTURBED EARTH SIL
DESIGN FLOW QD = 7 75 = 525 GPD
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pF 3" LOAM SOIL.
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COLORADO RIVER
NOTE: ALL CHAMBERS IN EACH TRENCH MUST BE INSTALLED ON LEVEL
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GRADE OVER 3" ASTM-33 FILTER SAND LEVELING COURSE.
SEPTIC TANK DESIGN
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MAXIMUM DEPTH OF TRENCHES NOT TO EXCEED 36" BELOW PROPOSED
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GARAGE FFE: 5503.66'
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SURFACE GRADES. INLET AND END CAPS ARE TO BE INSTALLED ON EACH
USE A 1250 GALLON, TWO COMPARTMENT CONCRETE SEPTIC TANK WITH AN EFFLUENT
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END CHAMBER ROW. IF EXCESSIVE LARGE COBBLES OR BOULDERS ARE
FILTER OUTLET SANITARY TEE IN THE SECOND CHAMBER. TANK SHALL BE I NSTALLED WITH
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ENCOUNTERED IN ANY PART OF THE EXCAVATION, OVER EXCVATE AND
SEALED CONCRETE RISERS AND LIDS TO THE FINISH GRADE SURFACE.
BACKFILL WITH SAND OR SUITABLE SCREENED NATIVE SOILS.
CHAMBER TRENCH CROSS SECTION DETAIL
PRELIMINARY SUB SURFACE CONDITIONS AND TESTING
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INSTALLED 1250 GALLON 2-COMPARTMENT CONCRETE SEPTIC
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A PREVIOUS SUBSURFACE SOIL INVESTIGATION WAS PERFORMED BY KUMAR &
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TANK (USE VALLEY PRECAST ITEM # IM 1000-2CP) W/ SEALED
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ASSOCIATES, INC JUNE 9TH, 2022. THE RESULT OF THE SOILS EVALUATION IS PRESENTED IN
RISERS AND LIDS INSTALLED AT THE FINISHED GRADE SURFACE.
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DISTRIBUTION Box LID
THE SUBSOIL STUDY FOR FOUNDATION DE51GN AN D PERCOLATION TEST, PROP05ED
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INSTALL INLET SANITARY TEE AND OUTLET EFFLUENT FILTER
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AT GROUND SURFACE
RESIDENCE OF LOT 2 RIVER VIEW RANCH SUBDIVISION AT 167 SHORE DRIVE IN GARFIELD
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SANITARY TEE. DEPTH TO TOP OF TANK FROM PROPOSED GRADE IS
APPROXIMATELY 24'.
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COUNTY COLORADO.THE SOILS ENCOUNTERED IN THE BUILDING ENVELOPE BORI NGS
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RISER SECTION
CONSISTS OF VERY STIFF, SLIGHTLY CLAYEY, SLIGHTLY 5AN DY TO SANDY SILT IN ALL THREE
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PLASTIC DISTRIBUTION BOX WITH BAFFLE
GA UTO CURT
BAFFLE
TEST BORINGS. THE SOILS ARE CHARACTERIZED AS A SANDY SILT LOAM WITH SLIGHTLY
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-INSTALLED LEVEL ON COMPACTED BASE
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4" DISTRIBUTION
BLOCKY AND GRANULAR STRUCTURE WITH MODERATE STRUCTURAL GRADE HAVING AN
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INSTALLED RISERS AND LID TO SURFACE
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GRAVITY LINE
LTAR OF 0.60 G/5F/D.
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FROM SEPTIC TANK
A SUBSURFACE SOIL INVESTIGATION AND SITE ASSESSMENT WAS PERFORMED BY 50PRIS
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0." PVC DISTRIBUTION PIPES (TYP.)
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4" SOLID PVC GRAVITY
ENGINEERING IN ON JULY 20, 2022. THE 501LS IN THE PROP05ED FIELD ENVELOPE AREA
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INSTALLED 4" RISER PIPE INSPECTION PORT EXTEND RISER
LOT 2
DISTRIBUTION PIPES (TYP.)
WERE SAMPLED AND CHARACTERIZED BY APPLICATION OF THE USDA VISUAL/TACTILE SOIL
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W/ CAP MIN. 4" BELOW FINISH GRADE & COVER WITH 6"
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TO ABSORPTION FEILD INVERT IN
TEXTURE METHOD ANALYSIS FROM SAMPLES IN TWO PROFILE PITS. GENERALLY THE SOILS
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DIA. VALVE BOX SET WITH LID 1" ABOVE FINSH GRADE
9 5.608 ACRES.
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B" AGREGATE BASE COURSE
BELOW APPROXIMATELY 18 -24 INCHES OF PREVIOUSLY PLACED FILL CONSIST OF MEDIUM
DENSE SILT LOAM TEXTURE SOIL WITH SLIGHTLY BLOCKY TO GRANULAR STRUCTURE TO
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(TYP. EACH CORNER CHAMBER END CAP)
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COMPACTED SUBGRADE
THE PROFILE PIT DEPTH OF 8 FEET. THE SOILS CONTAIN LESS THAN 5% SCATTERED GRAVEL
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EXCAVATION DEPTH 12 MIN.-4' MAX. BELOW SURFACE
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OR ROCK CONTENT TO THE 8-FEET DEPTH EXPLORED BELOW THE SURFACE GRADES. NO
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GRADE MINIMUM. 12" COVER OVER TOP OF CHAMBERS
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DISTRIBUTION BOX DETAIL
FREE WATER WAS ENCOUNTERED IN THE PIT EXCAVATIONS. NO EVIDENCE OF SEASONAL
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FILL &GRADE FIELD AREA APPROXIMATELY 3"-6" ABOVE
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N.T.S.
HIGH GROUND WATER OR REDOX CONDITIONS WAS OBSERVED IN THE PROFILE PITS.
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EXISTING SURFACE GRADES
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SEASONAL HIGH GROUNDWATER LEVELS ARE EXPECTED TO BE BELOW 20 FEET FROM THE
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EXISTING SURFACE GRADES ON THE RELATIVELY FLAT TERRAIN.
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EXISTING WELL
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ABSORPTION/TREATMENT FIELD
INSTALLED 52 QUICK-4 CHAMBERS IN 4 TRENCHES WITH 13 CHAMBERS PER ROW FORA
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PERMIT NO. 66673-F
EXTEND 4" RISER PIPE
MIN. 3" THROUGH END
THE NATIVE SOILS SAMPLED FROM THE PITS, 2-3 FEET BELOW THE SURFACE, IN THE
SITE PLAN
CAP OR CHAMBER PRE
VICINITY OF THE PROPOSED FIELD, ARE CHARACTERIZED AS A SOIL TYPE 2 CONSISTING OF
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TOTAL ABSORPTION AREA OF 625 S.F. THE SYSTEM WAS PLUMBED FOR EQ,UALGRAVITY ,4n
DISTRIBUTION. THE CHAMBERS WAS INSTALLED ON LEVEL GRADE IN EACH TRENCH. THE
FORMED PENETRATION
SILT LOAM TEXTURE WITH GRANULAR STRUCTURE. THIS SOIL HAS AN EFFECTIVE LOADING
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BOTTOM OF EACH TRENCH WAS EXCAVATED TO A MAXIMUM AVERAGE DEPTH OF 36
b VALVE BOX 6" VALVE BOX SECURE WITH SCREWS
RATE FOR CONVENTIONAL SOIL TREATMENT OF 0.6 GAL/S.F./DAY FOR A LEVEL 1
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INCHES BELOW THE EXISTING SURFACE GRADES, WITHIN THE UPPER HORIZON OF THE
THROUGH PENETRATION
CONVENTIONAL TREATMENT SYSTEM. THE EQUIVALENT PERCOLATION RATE IS ASSUMED
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NATIVE SANDY SILT LOAM SOILS & BACKFILLED WITH A MINIMUM 12-INCHES OF COVER
CAP FLANGE INTO PIPE
TO BE 20-30 M INUTES PER INCH. THE SOILS ARE SUITABLE FOR A SHALLOW
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OVER THE CHAMBERS. THE FINISH GRADE ACROSS THE FIELD IS SLIGHTLY MOUNDED A
CONVENTIONAL ABSORPTION FIELD CONSISTING OF GRAVELLESS INFILTRATION CHAMBER
❑
54.0'
MINIMUM 4-INCHES ABOVE EXISTING ADJACENT GRADES.
UNITS.
4" INSPECTION PORT RISE - -
1
4" EFFLUENT PIPE FROM
ADDITIONAL OBSERVATIONS AND SOIL EVALUATION WILL BE PERFORMED DURING
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DISTRIBUTION BOX
CONSTRUCTION, BY 50PRIS ENGINEERING IN THE AREA OF THE PROP05ED ABSORPTION
FIELD TO CONFIRM THE SOIL EVALUATIONS AND DESIGN CRITERIA. IF SOIL CONDITIONS
ENCOUNTERED REQUIRE ADJUSTMENTS TO DESIGN CRITERIA OR THE DESIGN PLAN,
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NOTICE WILL BE MADE TO COUNTY EHD AND APPLICABLE REVISIONS TO
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DESIGN/CONSTRUCTION PLANS AND REPORT WILL BE SUBMITTED. THE RESULTS OF ANY
NiEC 5 TE•: f %•,.i i n
QUICK-4 INFILTRATOR
ADDITIONAL SOIL EVALUATION AND SOIL CHARACTERIZATION WI LL BE INCLUDED I N THE
PROPERTY LINE
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QUICK-4 INFILTRATOR OR EQUAL BIO DIFFUSER
AS -CONSTRUCTED DOCUMENTATION.
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END CAP CHAMBER
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SOIL TREATMENT UNIT/ ABSORPTION SYSTEM DESIGN
INSPECTION PORT CONNECTION DETAIL
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THE TREATMENT/ABSORPTION FIELD 15 DESIGNED BASED ON UTILIZING THE EFFECTIVE
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LONG TERM ACCEPTANCE RATE (LTAR) FOR THE NATIVE 501LS AND THE APPLICATION OF
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APPROPRIATE LOADING FACTORS FOR A SOIL TREATMENT UNIT SYSTEM UTILIZING
GRAVITY DISTRIBUTION TO GRAVELLE5S CHAMBER TRENCHES. THE NEW TREATMENT
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SYSTEM AND ABSORPTION FIELD WILL CONSIST OF GRAVITY DISTRIBUTION OF SEPTIC TANK
INSTALLED 4" RISER PIPE INSPECTION PORT EXTEND RISER W/�. .. ' . EFFLUENT VIA A DISTRIBUTION BOX TO INDIVIDUAL CHAMBER TRENCHES WITH
CAP MIN. 4" BELOW FINISH GRADE & COVER WITH 6" DIA. , •. NATIVE, YARD OR LANDSCAPED SURFACE
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12.8'
VALVE BOX SET WITH LID 1" ABOVE FINSH GRADE
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TREATMENT ACROSS THE NATIVE SOIL ABSORPTIVE SURFACE.
RECORD DRAWING
l 30.3'
(TYP. EACH TRENCH CHAMBER END CAP).
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LONG TERM ACCEPTANCE RATE (LTAR)
} INSTALLED CHAMBER END
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! R100.00 sso
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CONSIDERING THE APPLICATION OF THE STATE REGULATION 43.
RECEIVING WASTEWATER TREATMENT LEVEL 1;
CAP
WELL SETBACK s
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ON ALL END CHAMBERS
;
6" MIN, EXCAVATED MATERIAL COMPACTED
LTAR; (TABLE 10-1 501L TYPE 2 LOADING RATE IS (0.60 GAL./S.F./DAY);
DESIGN FLOW; FLOW 525 GPD
PROFILE PIT (TYP.)
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TO 90% STANDARD PROCTOR
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QD = (GAL/DAY) =
LOADING FACTORS; (TABLE 10-2, GRAVITY APPLICATION TRENCHES, L.F.1 = 1.0)
(TABLE 10-3, GRAVELLE55 CHAMBERS, L.F.2 = 0.7)
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4 MIN.
STU ABSORPTION TREATMENT AREA; A = AREA S.F.;
OWTS ENVELOPE f
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SUITABLE BACKFILL OR
4" 4„ f CLASS &ROAD SASE
A(SF) = QD X L.F.1 X L.F.2 .: A(SF) = 525 GPD X 1.0 X 0.7 = 612.50 S.F.
LTAR 0.6 GAL/S.F./DAY
DATE
REVISION
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COMPACTED SUBGRADE
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NUMBER OF QUICK-4 INFILTRATOR CHAMBERS 4'X3'XI2"CHAMBEIRS.
TRENCH CROSS-SECTION FOR 612.50 S.F. = 51 CHAMBERS; USE 52 CHAMBERS
VINCINITY AERIAL MAP
SDR-35.26 OR SCHD-40 PIPES
12S.F./CHAMBER
N.T.S.
NUMBER OF EQUIVALENT ARC CHAMBERS 5'X3'X12"CHAMBERS:
f 612.50 S.F. = 40 CHAMBERS; USE 44 CHAMBERS
15 S. F./CHAMBER
USED 52 QUICK-4 INFILTRATOR CHAMBERS IN 4 TRENCHES 54' LONG BY 3' WIDE WITH 13
CHAMBERS UNITS PER TRENCH PLUS TWO END CAPS AS DELINEATED ON THE PLAN.
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TITLE
GRAPHIC SCALE
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OWTS PLAN
10 a
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( IN FEET }
Know what's below.
DRAWING N0.
1 inch - 10 ft.
Call before you dig,
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CALL 2-BUSINESS DAYS IN ADVANCE
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DIG,
BEFORE YOU DIG, GRADE, OR EXCAVATE
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FOR THE MARKING OF UNDERGROUND
MEMBER LJTI LITI ES