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ONE
4 GRP�1Y
OWTS DESIGN PLAN
6" MIN.
TRENCH CROSS-SECTION FOR
FORCE MAIN & COMCAST
N.T.S.
INSTALL 2" BLUE BOARD IF
DEPTH OF COVER IS LESS
THAN 3.5'
EXCAVATED MATERIAL
COMPACTED TO 90%
STANDARD PROCTOR
CLA55 6 ROAD BASE
SELECTED BACKFILL
CHAMBER END CAPS
HP @ 45' BEND
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24" OF FILTER SAND
CROSS SECTION SLOPE DE'I
N.T.S.
GENERAL NOTES:
1. THE OWTS AS SHOWN ON THE PLAN AND THE DETAILS WERE DESIGNED BY SOPRIS ENGINEERING.
2. THE EXISTING/ PROPOSED LOT CONDITIONS AND SURVEY INFORMATION SHOWN BY SOPRIS ENGINEERING.
TANK RISERS 3, PRIMARY OWNER NAME AND ADDRESS: MENTAL FLOSS, LLC, P O BOX 620 BASALT, CO 81621
4. SITE PHYSICAL ADDRESS: 1097116 COUNTY RD GLEN WOOD SPRINGS 81601
ALSO A TR IN
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TESTING, INSPECTIONS AND CONSTRUCTION MANAGEMENT
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5. Legal Summary Quarter: Section: 27 Township: 6 Range: 89 TR IN SENE & NESE(8.23A) ALSO A TRT 18A)
SIMPLEX HEAD HEAD NESE(1.22AC)
PUMP W/810 TUBE 6, Parcel Number: 2185-27100-008
VAULT DISCHARGE
ASSEMBLY 7. CONTRACTOR: GOULD CONSTRUCTION, 6874 CO -82, Glenwood Springs, CO 81601 (970) 945-7291
OWTS SYSTEM NOTES
The design Flow is calculated as Automatic trap recommended [olbernstalledrage
toilet for use by a single employee and possible limited transient customer
1. INSPECTIONS AND RECOMMENDATION WILL REMADE BY THE ENGINEER DURING CONSTRUCTION TO APPROVE THE
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From the Regulation 43 usage Table 6-2 :
LAYOUT OF THE SAND FILTER TRENCH SYSTEM AND VERIFY INSTALLATION OF SPECIFIED MATERIALS AND OWTS
COMPONENTS.
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' 1. ALL MATERIALS AND INSTALLATION SHALL CONFORM TO STATE AND COUNTY ONSITE WASTEWATER TREATMENT SYSTEM
CONCRETE SEPTIC (OWTS) REGULATIONS.
TANK 2, IT IS THE RESPONSIBILITY OF THE CONTRACTOR TO CONTACTALL UTILITY COMPANIES FOR FIELD LOCATIONS OF UTILITIES
PRIOR TO CONSTRUCTION AND EXCAVATION.
3. ALL SEWER LINES TO BE SDR -36 BEDDED IN CLASS 6 OR 2 -INCH MINUS SCREENED NATIVE OR SCHEDULE 40 P.V.C. PIPE
BEDDED IN SCREENED NATIVE MATERIAL UNLESS NOTED OTHERWISE.
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2. PRIOR GE CONSTRUCTION OF THE PERMITTED SYSTEM THE ENGINEER SHOULD BE CONTACTED BY THE PROJECT
MANAGER/CONTRACTOR WELL IN ADVANCE 70 PROVIDE ADEQUATE TIME TO DISCUSS THE SYSTEM COMPONENTS WITH
SITE VISITS BASED ON
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4. INSTALL A TWO-WAY CLEAN OUT ADJACENT TO THE BUILDING ON THE SEWER PIPE FROM BUILDING TO TANK.
5. THE CONTRACTOR SHALL ENSURE ALL SEWER PIPES AND SEPTIC TANK RISERS ARE WATERTIGHT.
6. THE SEPTIC TANK SHALL BE INSTALLED LEVEL ON A MINIMUM 6" COURSE OF COMPACTED AGGREGATE BASE MATERIA!.
OVER SUITABLE COMPACTED SUBGRADE. INSTALL WATERTIGHT RISERS WI FH LIDS AS NECESSARY TO BRING ALL ACCESS
POINTS TO THE FINISHED SURFACE GRADE. INSTALL APPROPRIATE GRADE RING RISERS WITH IRON RING AND COVERS
POINTS
THE TANK IS 70 BE INSTALLED IN A TRAFFIC AREA.
7. A SANITARY BAFFLE TEE IS REQUIRED ON THE SEPTIC TANK INLET. INSTALL THE INLET AND OUTLET TEES PLUMB AND
POSITION TO ALLOW EASY INSPECTION AND MAINTENANCE OF TANK FROM THE TANK RISERS.
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Total Design flow Qd = 40 gpd
high head dosing assembly in the third chamber. Total tank capacity is 1500 gallons.
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Septic lank Design: Use a 1000 gallon, three compartment septic tank with a, bio -tube simplex pump,
3. REGULATIONS REQUIRE THAT THE DESIGN ENGINEER OF RECORD PERFORM SITE INSPECTIONS OF THE PERMITTED SYSTEM
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S. AN EFFLUENT FILTER IS REQUIRED. IAN APPROPRIATE BIO TUBE FILTER SYSTEM WILL BE AN INSTALLED COMPONENT
THE DISCHARGE PUMP ASSEMBLY. THE GRAVITY OR PUMP SYSTEM FILTER SHOULD BE INSPECTED EVERY SIX MONTHS.
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 UD.9. THE TREATMENT FIELD MUST BE MARKED AND PROTECTED 70 PREVENT DAMAGE FROM VEHICULAR AND LIVESTOCK
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TRAFFIC.
THE ENTIRE TREATMENT FIELD SURFACE MUST BE SODDED OR RE -VEGETATED WITH GROUND COVER.
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MUST BE CROWNED TO DIVERT SURFACE DRAINAGE AWAY FROM THE BED.
The native soils on site and expected to presentwithintheOWTo al Keatment sysS fi t mlocation are a or 1.0 Gal/S.F./day for aracterized presence of gravels, and small boulders,! am
sand filterr.. D e to limited area, and
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THE TREATMENT FIELD SURFACE
THE OWTS
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12. THE DIMENSIONS SHOWN ON THE PLAN INDICATE MINIMUM AREA AND SEPARATION DISTANCES FOR
COMPONENTS.
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13. THE FIELD SHALL BE LEVEL WITH DISTRIBUTION PIPES INSTALLED FOR EQUAL PRESSURE DISTRIBUTION.
S. OUR DESIGN AND RECOMMENDATIONS ARE BASED UPON OUR EVALUATION Of THE EXITING AND PROPOSED SITE
TO US. IF SITE CONDITIONS ARE FOUND TO BE DIFFERENT FROM CONDITIONS
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14, THE FIELD EXCAVATION SHALL BE OVER EXCAVATED TO ALLOW PLACEMENT OF THE SPECIFIED SAND FILTER TREATMENT
CE SIDEWALLS OF THE TRENCH TO BE SCARIFIED AND RAKED AS NECESSARY
PRIOR
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CONDITIONS AND INFORMATION SUPPLIED
ASSUMED OR INDICATED, WE SHOULD BE NOTIFIED TO EVALUATE ANY EFFECT ON THE PROPOSED OWTS.
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4" TRUE WYE MEDIA LAYER. THE BOTTOM SURFA U
r-- 4' SEWER UNE TO PLACEMENT OF THE LEVELING SAND.
4"x4"x4"WYE
COMCAST
TWO-WAY SEWER CLEAN OUT DETAIL
N. TS.
SELECT BACKFILL
ICK4 INFILTRATOR
JAL BIO DIFFUSERS
ELDS
1 )I" SCHD-40 PIPE
ED HOLES EVERY 2'
OP OF PIPE
4"
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15. LAYERR OR USE AS SPRAY WIELDS. THE CHAMBERS, SAND AND DISTRIBUTION PIPES SHALL BETME14T TRENCH OR BED SHALL BE CONSTRUCTED WITH CHAMBER UNITS PLACED VCOV RED WITH ER THE SPECIFIED
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FABRIC TO THE SIDES OF THE EXCAVATION. v
16. THE MINIMUM COVER OVER THE TOP OF THE CHAMBER SPRAY SHIELD UNITS SHALL BE 12 INCHES NOT TO EXCEED I8". W
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17. THE CHAMBERS WILL BE BACKFILLED TO THE SURFACE WITH EXCAVATED MATERIAL VOID Of ROCKS. THE BACKFILL
MATERIAL SHALL NOT EXCEED 3" DIAMETER. A MINIMUM 4" DEPTH OF TOPSOIL IS TO BE PLACED ABOVE THE BACKFILL TO 0p
THE FINISH SURFACE GRADE.
18. BALL VALVES (SIZE PER PLAN) SHALL BE INSTALLED ON THE TERMINAL ENDS OF THE PERFORATED DISTRIBUTION PIPE JUST m
BELOW THE 4" INSPECTION PORTS.
19. ALL INSTALLATION OF THE CHAMBER UNITS SHALL BE IN CONFORMANCE WITH THE MANUFACTURES INSTALLATION
INSTRUCTIONS.
THE ABSORPTION FIELD SHALL BE INSTALLED PER THE REQUIRED SETBACK DISTANCES:
10 fe,•t from any property line.
25 feat from any potable water supply line.
20 feet from any occupied dwelling.
100 feet from any well, spring or cistern.
OR 25 feet from drainage Swale or ditches
PRAY
DISTRIBUTION SYSTEM NOTES:
W/ 1. EFFLUENT FROM THE SECONDARY SEPTIC TANK COMPARTMENT WILL FLOW TO THE THIRD COMPARTMENT THAT HAS A
A 11RIO TUBE DOSING BASIN WITH A SIMPLEX HIGH HEAD EFFLUENT PUMP ASSEMBLY. EFFLUENT WILL PRESSURE DISCHARGE O
ALONGTO THE TREATMENT FIELD VIA THE SPECIFIED INDIVIDUAL TRANSPORT LINE TO THE HEAD OF THE SINGLE TRENCH. (SEE Ln>
PLAN CALLOUTS NOTES) ui
2. THE SPECIFIED CUSTOM PERFORATED PRESSURE DISTRIBUTION LATERALS WILL BE INSTALLED BELOW THE CENTER OF THE
SPRAY SHETLD CHAMBER ROWS ON THE SAND LAYER SURFACE. THE DISTRIBUTION PIPES WILL HAVE 3/16" ORIFICES
DRILLED AS SPECIFIED AT EQUAL INCREMENTS ALONG THE PIPE. (SEE PLAN CALLOUTS)
3. THE DISTRIBUTION SYSTEM SHALL DISTRIBUTE FLOW EVENLY ACROSS THE INTERMITTENTSAND FILTER BED. THE
CONt71NUOUS SLOPE OF THE TRANSPORT PIPE FROM THE DOSING TANK TO THE TRENCH SHALL SHALL BE A MINIMUM
1.5% TO ALLOW FOR PIPE DRAINAGE INTO THE FIELD. ALL DISTRIBUTION PIPING, CONNECTIONS AND FITTINGS SHALL BE
WATERTIGHT AND INSTALLED TO INSURE EQUAL DISTRIBUTION THROUGH THE SYSTEM.
ELECTRICAL NOTES
1. AN ORENCO SYSTEMS CONTROL PANEL SHALL BE INSTALLED BY A QUALIFIED INSTALLER IN COORDINATION WITH THE
ELECTRICIAN. WE RECOMMEND 110 VOLT ELECTRIC SERVICE BE PROVIDED TO THE PUMP. THE POWER SUPPLY FOR THE
PUMPS AND CONTROLS SHALL CONSIST OF f 1) 20 AMP DOUBLE POLE CIRCUITS FOR THE PUMP AND 10 AMP SINGLE POLE
CIRCUITS FOR CONTROLS. PANELS TO BE INSTALLED IN LINE OF SITE WITH TANK AND OR PUMP BASINS. O
2. THE CONTRACTOR SHALL INSTALL ELECTRICAL SUPPLY WIRE IN CONDUIT FROM THE SERVICE PANEL TO THE WALL
2
RSA /ABSORPTION TREATMENT BED MOUNTED CONTROL PANEL.
SYSTEM DISPE i
3. THE SYSTEM QUALIFIED INSTALLER SHALL INSTALL ELECTRICAL DIRECT BURY WIRES OR WIRES IN CONDUIT FROM THE
CONTROL PANEL(S) TO THE DISCHARGE PUMP ASSEMBLYz'S JUNCTION BOX ON THE RESPECTIVE RISERS OVER THE TANK Q
COONDUIT SE,S. 4 NEAR SPSTALL LICE BOED IRES PER X. ELECTRICIANTO COORDINAL PANEL TE W/SYSTEM INSTALLERM INSTALL ALL WIRES , INSTALLATION CONSUOR PUMP AND LTATION
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BY VALLEY PRECAST, INC. �-
Design Calculations OWTS
follows for low usage commercial facility onsite wastewater systelin the bath plumbing tolity will have a small ldosece l the p --taps de to inath that tequent ues a lse. basin
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TESTING, INSPECTIONS AND CONSTRUCTION MANAGEMENT
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The design Flow is calculated as Automatic trap recommended [olbernstalledrage
toilet for use by a single employee and possible limited transient customer
1. INSPECTIONS AND RECOMMENDATION WILL REMADE BY THE ENGINEER DURING CONSTRUCTION TO APPROVE THE
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and
From the Regulation 43 usage Table 6-2 :
LAYOUT OF THE SAND FILTER TRENCH SYSTEM AND VERIFY INSTALLATION OF SPECIFIED MATERIALS AND OWTS
COMPONENTS.
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Max. Design NOW (Qd) = # of people x (avg.per capita flow)
Qd=daily worker office: 2 persons @ 15 gpd = 2 x 15 = 30 gpd
Qd=Potential/transient use: 2 persons @ 5 gpd = 2 x 5 = 10 gpd
2. PRIOR GE CONSTRUCTION OF THE PERMITTED SYSTEM THE ENGINEER SHOULD BE CONTACTED BY THE PROJECT
MANAGER/CONTRACTOR WELL IN ADVANCE 70 PROVIDE ADEQUATE TIME TO DISCUSS THE SYSTEM COMPONENTS WITH
SITE VISITS BASED ON
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Total Design flow Qd = 40 gpd
high head dosing assembly in the third chamber. Total tank capacity is 1500 gallons.
THE CONTRACTOR, ANSWER QUESTIONS, RESOLVE ANY CONFLICT ISSUES AND SCHEDULE INSPECTION
CONSTRUCTION PROGRESS. APRE-DWS CONSTRUCTION MEETING WITH THE ENGINEER, THE CONTRACTOR, ELECTRICIAN
AND THE QUALIFIED INSTALLER IS REQUIRED PRIOR TO INSTALLATION OF THE OWS COMPONENTS.
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Septic lank Design: Use a 1000 gallon, three compartment septic tank with a, bio -tube simplex pump,
3. REGULATIONS REQUIRE THAT THE DESIGN ENGINEER OF RECORD PERFORM SITE INSPECTIONS OF THE PERMITTED SYSTEM
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Sub Surface Conditions and Testing:
as a soil type 3 of sandy clay loam rp
e with significant acobbles intermitttient sand
DURING CONSTRUCTION AND PROVIDE "AS -BUILT" DOCUMENTATION OF THE INSTALLED SYSTEM TO THE THE COUNTY
AFTER CONSTRUCTION IS COMPLETE. WE RECOMMEND THAT INSTALLED OWTS COMPONENTS BE SURVEYED TO OBTAIN
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The native soils on site and expected to presentwithintheOWTo al Keatment sysS fi t mlocation are a or 1.0 Gal/S.F./day for aracterized presence of gravels, and small boulders,! am
sand filterr.. D e to limited area, and
REQUIRED AS -BUILT INFORMATION.
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effective loading rate of 0.35 Gal/S. F./day�
filter is recommended to provide optimal treatment. Groundwater levels are expected to be below 12 feet from the absorptive surface.
will be performed prior to final construction to verify the soils in the proposed Field excavation.
4. CONTRACTOR SHOULD DISCUSS ISSUES REGARDING SPECIFICATIONS, INSTALLATION AND OPERAT ION OF OWTS
MECHANICAL SYSTEMS AND CONTROLS WITH THE SUPPLIER/INSTALLER ANO/OR THE ENGINEER.
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An additional soil evaluation
Intermittent Sand Filter Treatment Unit/ Absorption System Design:
laterals and
S. OUR DESIGN AND RECOMMENDATIONS ARE BASED UPON OUR EVALUATION Of THE EXITING AND PROPOSED SITE
TO US. IF SITE CONDITIONS ARE FOUND TO BE DIFFERENT FROM CONDITIONS
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field is designed based on utilizing the effective Long Term Acceptance Rate (LIAR) for intermittent sand fitter treatment system utilizing pressure dosed distribution graveness
24 -inch layer of filter sand (ASTM -33, "Concrete sand").
CONDITIONS AND INFORMATION SUPPLIED
ASSUMED OR INDICATED, WE SHOULD BE NOTIFIED TO EVALUATE ANY EFFECT ON THE PROPOSED OWTS.
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The treatment/absorption en
chamber units as spray shields. The new treatment system will consist of a fully pressure Based sand filter Treatment bed System with a
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Long Term Acceptance Rate (I TAR)
Considering the application of the new state regulation 43:
Treatment Level 1; loading rate for sand filter is (1.0 gal./S.F./day) for the minimum 24" depth of treatment media;
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Receiving Wastewater
Loading factors; (Table 10-2, pressure dosed application trench = 0.8)
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A(sf) = Qd.: A = Area;
LTX -R- LIAR = 1.0 Gal/S.F./day for ASTM "Concrete sand"
Qd = flow (gai/daY) = 40 gpd
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A(sf) = 40 gpd x 0.8 = 32 S.F.
1.0 Gal/S.F./day
Excavate a 14' by 3' single trench to a maximum 4.0' depth below finish grade. Scarify surface and backfill with 24 -inches or of ASTM -33, "Concrete sand"
Install 1 run of custom perforated 1.25 -inch distribution lateral on top of sand layer and install with 3 n the p an long) re 2 equivalent bio diffusers (5' long) chamber units in the single trench for use as the pressure
dosed system spray shields. install chamber end caps, inspection ports and tracer wire as delineated on the plan. The trench will be dosed from the simplex high head distribution pump system installed in the third
compartment of the septic tank.
COMPONENT
SUPPLIER OWTS coM Know what's below.
`onta" Call before you di
VALLEY PRECAST, NC y g• DATE: 11/09/2016
719-211-6702 CALL 2 -BUSINESS DAYS IN ADVANCE
28105 C.R. 317 BEFORE YOU DIG, GRADE, OR EXCAVATE
BUENA VISTA, CO 81211 FOR THE MARKING OF UNDERGROUND SOB NO. 15219.01
MEMBER UNITIES
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