HomeMy WebLinkAboutPitkin.EH.273503301002 (2017)
ONSITE WASTEWATER TREATMENT SYSTEM (OWTS)
CONSTRUCTION PERMIT
76 Service Center Rd· Aspen, CO · 81611
Phone: 970.920.5070 Fax: 970.920.5374
Permit #: 0045.2017.POWT Parcel ID #: 2735-033-01-002
Permit Issued: NEW REPAIR REMODEL/ADDITION TANK ONLY FIELD ONLY AMENDMENT
Owner(s): Placer Enterprises Corp
Property Address: 1313 W Buttermilk Rd
Legal Description:
Size of Lot: 90 Acres Detached Accessory Unit: YES NO
Size of Building: 7855 ft2 Sq. Ft. Size of Accessory
Unit: Sq. Ft.
This replacement system will serve the South Wing of the home and is designed to serve 3 bedrooms
Designed By: Boundaries Unlimited Project #: 17030 Dated:
Phone #: 970-945-5252 Mailing Address: 923 Cooper Ave, Ste 201, Glenwood Springs
Fax #: Email Address:
Perc Rate: .1 LTAR Profile Hole Depth: 8’ Depth to Groundwater or
Bedrock: 8’
Minimum Tank Capacity: 1200 gallons Minimum Absorption
Area:
4485 ft2 w/ reduction
Permit Conditions:
This OWTS Construction Permit is approved on the condition of compliance with the engineer design as submitted with the application and the
specifications cited above. Changes must be approved by this Department and the engineer prior to construction.
This system will consist of a 1,500 gallon 2 compartment concrete tank followed by a single compartment 1000 gallon
dosing tank. Dosing tank will contain an Orenco PF300511 or equivalent to alternately dose 4 beds with an ADV. ADV
must be placed at a high point between the field area and tank to allow drainback. Each bed will consist of 96 “Quick-4”
units (4x24) or 76 “ARC36” units (4x19). Beds must be separated by at least 6’. All tank risers must be accessible from
grade. Well setback of 100’ must be maintained.
This Permit must be kept on-site during installation. The engineer must do a final inspection of the installation and submit an "as -built" letter to this
Department within 30 days of the final inspection, unless a longer period of time has been agreed upon, in writing. This Department must also be called
for the final inspection with a minimum of 48 hours notice.
Minimum horizontal distances between components of the system and physical features shall conform to the requirements of the Pitkin County OWTS
Regulation.
This Permit is conditioned upon the property owner(s) providing for regular inspection, cleaning, and maintenance of the syst em by qualified personnel, in
accordance with the manufacturer's recommendations and the requirements of the Pitkin County OWTS Regulation. Issuance of this OWTS Construction
Permit does not constitute a guarantee, warranty, or representation by the Department that the system will operate properly or will not fail. Issuance of
this permit does not imply compliance with Pitkin County building and/or land use regulations, nor guarantee issuance of building and/or land use permits.
THIS PERMIT IS EXPRESSLY CONDITIONED UPON COMPLIANCE WITH ALL REQUIREMENTS OF THE PITKIN
COUNTY OWTS REGULATION, INCLUDING BUT NOT LIMITED TO THOSE CONDITIONS SPECIFIED ABOVE.
Plans and specifications for the proposed OWTS have been reviewed and are considered satisfactory. Permission is
hereby given to the property owner(s) to perform the work indicated in accordance with the Pitkin County OWTS
Regulation. This Permit will expire 1 year from the date of issuance unless construction on the system has commenced.
An "as-built" drawing must be submitted and approved by EH before final approval of the system will be issued.
Issued By: Bryan Daugherty, REHS Date: 11/3/17 Expires: 3/3/18
Installer: License #: Reactivation Authorized by:
Final Approval Issued By: Date: New Expiration Date:
EH
QNSITE WASTEWATER TREATMENT SYSTEM (OWTS)
00 - - n•� CONSTRUCTION PERMIT APPLICATION
1 -5 76 Service Center Rd • Aspen, CO - 81611
Phone: 970.920.5070 Fax:970.920,5438
arcot [DO (available from the Pitkin County Ass&ssor*s Office 97"20-5160 of at
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❑ PIUVATE WELL ❑ SURFACE WATER
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ame of CommunitylPublic Water System (if applicable):
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Job Number
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rtify that the above information Is complete and accurate and that I have provided complete and accurate information in all of the documents
luded in my application package. I acknowledge that EWNR may fevvkc any Permit
I am issued if my application is found to contain any inaccurate,
e, or misleading information- 1 understand that no construction may be undertaken on an OWTS until an Q TS Construction Permit is ivucd-
ner Signature (Required):
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OFFICE:; USEONLY
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Effective Date 1/1212017
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1-1/2"x1-1/4" SCH.40 PVC
REDUCER BUSHING, TYP.
TP#1
CDPHE APPROVED 1,000-GALLON
ONE-COMPARTMENT PRECAST
CONCRETE SEPTIC TANK W/ HIGH
HEAD DOSING PUMP
INSPECTION PORT,
TYP. (4 PER BED)
FLUSH VALVE ASSEMBLY,
TYP. (4 PER BED)
1-1/2"Ø SCH.40 PVC
DISTRIBUTION LINES
& MANIFOLD, TYP.
AUTOMATIC DISTRIBUTION VALVE
ASSEMBLY. INSTALL UPHILL/HIGHER
THAN BOTH THE TANKS AND THE
ABSORPTION FIELD.
NOTE:
PROPERTY LINES EXTEND
WELL BEYOND THE LIMITS
OF THIS DRAWING.
DEMO EX. TANK
MASTER
BEDROOM
SOUTH WING
TP#2
2 BED
A.D.U.
TP#3 &
PROFILE
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W. BUTTERMILK RD.
EX. WELL LOCATION
PER DIVISION OF
WATER RESOURCES
100'
SETBACK
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GARAGE
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CONNECT TO EX. SEWER
AND INSTALL CLEANOUT
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1,500-GALLON
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CONCRETE SEPTIC TANK
EXTEND NEW
4"Ø SCH40 PVC
100'R SETBACK FROM EX.
WELL LOCATION PER DIVISION
OF WATER RESOURCES
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COL O R A D O LICE
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SSIONA L E N GINEER
11/3/17
00 40'80'
Scale: 1" = 40'
SITE EVALUATION
1.SITE AND SOIL EVALUATIONS WERE PERFORMED BY:
DAVID A. YOUNG, PE
HEPWORTH-PAWLAK GEOTECHNICAL INC.
5020 COUNTY ROAD #154
GLENWOOD SPRINGS, CO 81601
970.945.7988/DAVE@HPGEOTECH.COM
2.EVALUATION DATE: SEPTEMBER 20, 2017.
3.VEGETATION CONSISTS OF NATIVE GRASSES/PLANTS, RABBIT BRUSH AND LOW
SAGE BRUSH.
4.TOPOGRAPHY SLOPES GENTLY TO THE WEST/SOUTHWEST.
5.SOILS CONSIST OF 1-1/2' DARK BROWN TOPSOIL OVER 1-1/2' REDDISH TAN
CLAY W/ WEATHERED SANDSTONE/CLAYSTONE GRAVELS AND 12"-18" ROCKS
OVER 2' OF TANNISH RED CLAY W/ RED WEATHERED SANDSTONE/CLAYSTONE
GRAVELS AND 12"-18" ROCKS OVER BROWN SANDY CLAY WITH SANDSTONE/
CLAYSTONE GRAVELS AND 12"-18" ROCKS. NO WATER WAS ENCOUNTERED IN
THE PROFILE HOLE.
6.SETBACK REQUIREMENTS FOR A TREATMENT LEVEL 1 (TL1) STA TRENCH/BED,
UNLINED SAND FILTER OR SEEPAGE PIT (PER TABLE 6.28-1&2) AND AN
ADWF=640.6 GPD:
6.A.SPRING OR WELL=100'
6.B.POTABLE WATER SUPPLY LINE=25'
6.C.POTABLE WATER SUPPLY CISTERN=25'
6.D.DWELLING=20'
6.E.PROPERTY LINE, PIPE OR LINED IRRIGATION DITCH/POND=10'
6.F.INTERMITTENT IRRIGATION LATERAL, INFILTRATION STRUCTURE=25'
6.G.LAKE, WATER COURSE, IRRIGATION DITCH, STREAM OR WETLAND=100'
6.H.DRY GULCH, CUT BANK OR FILL AREA=25'
6.I.SEPTIC TANK=5'
6.J.RESTRICTIVE LAYER OR GROUNDWATER (VERTICAL): 4' (TREATMENT LEVEL
1, GRAVITY FED)
3.SETBACK REQUIREMENTS FOR THE SEPTIC TANK SHALL BE (PER TABLE 6.28-1):
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/POND=10'
3.F.INTERMITTENT IRRIGATION LATERAL, INFILTRATION STRUCTURE=10'
3.G.LAKE WATER COURSE, IRRIGATION DITCH, STREAM OR WETLAND=100'
3.H.DRY GULCH, CUT BANK OR FILL AREA=10'
3.I.STA TRENCH/BED, UNLINED SAND FILTER OR SEEPAGE PIT=5'
By
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923 Cooper Avenue
Suite 201
Glenwood Springs, CO 81601
tele: 970.945.5252
fax: 970.384.2833
Engineer or Surveyor Seal
Sheet
Client Information:
PROJECT NO.
FILE NAME:
Designer:
Drafter:
Date:
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10/4/17
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17030-c-topo.dwg
17030
970.948.2952
CARBONDALE, CO 81623
783 MOUNTAIN VIEW RD
ACME PROPERTY MANGEMENT, INC.
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SURFACE
8'
±
1.
5
'
±
TOPSOIL
TYPE 5
REDDISH
TAN CLAY
Scale: N.T.S.
Site & Soils Evaluation
Vicinity Map
1"=2000'
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W. Buttermilk Sub.
SYSTEM NOTES
1.ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH PITKIN COUNTY REGULATION 6.28 ONSITE WASTEWATER TREATMENT SYSTEMS (OWTS), 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.THIS RESIDENCE CONTAINS THREE (3) SEPARATE OWTS SYSTEMS PRESUMABLY CONSTRUCTED SOMETIME BETWEEN 1970 AND 1990. THIS DESIGN IS
FOR THE REPLACEMENT OF THE EXISTING OWTS #1 ABSORPTION FIELD THAT SERVES THE SOUTH WING OF THE HOUSE AND THE ATTACHED ACCESSORY
DWELLING UNIT (ADU). THE TWO (2) OTHER OWTS SYSTEMS ARE CURRENTLY OPERATING.
3.RESIDENCE IS GREATER THAN 6,000 SF. THEREFORE, A DESIGN FLOW OF 100 gpdc IS REQUIRED PER SECTION 6.28.05.B.
4.DEMAND CALCULATIONS
4.A.SYSTEM DESIGN PARAMETERS: TWO (2) BEDROOMS + 1 BEDROOM ADU + A KITCHEN SINK WITH GARBAGE GRINDER & A DISHWASHER WHICH
ALSO SERVE THE MASTER BEDROOM AND A 2-PERSON BUNK AREA WHICH ARE OTHERWISE ON A SEPARATE OWTS (OWTS #2).
4.B.AVERAGE DAILY WASTEWATER FLOW (ADWF):
4.B.1.ADWF = 100 gpd * (2 BEDROOMS * 2 PERSONS/BEDROOM) + 100 gpd * (1 BEDROOM ADU * 2 PERSONS/BEDROOM) + (1.8 gpd + 5.8 gpd) *
(2 BEDROOMS * 2 PERSONS/BEDROOM * (100gpd /75 gpd)) = 640.6 gpd
5.SEPTIC TANK:
5.A.ADWF * 2.0 RETENTION FACTOR = 1,282-GALLONS
5.A.1.EXISTING TANK IS AGED AND NOT LIKELY IN SUFFICIENT CONDITION FOR LONG TERM CONTINUED USE. REPLACE WITH NEW.
5.A.2.INSTALL A NEW 1500-GALLON TWO COMPARTMENT TANK IN SERIES WITH A 500 GALLON SINGLE COMPARTMENT TANK WITH AN A PRESSURE
DOSING PUMP SYSTEM.
6.ABSORPTION AREA CALCULATIONS
6.A.GROUNDWATER WAS NOT ENCOUNTERED AND THE PROPERTY CONTAINS SLOPES LESS THAN 20%.
6.B.SOILS WERE ANALYZED BY BOUNDARIES UNLIMITED INC. (SEPTEMBER 20, 2017) TO BE SANDY HEAVY CLAYS WITH GRAVEL AND BOULDERS
(TYPE-5) WITH A TREATMENT LEVEL 1 LONG TERM ACCEPTANCE RATE (LTAR) OF 0.10 gpd/SF (TABLE 6.28-7).
6.C.MINIMUM SOIL TREATMENT AREA, A:
A = ADWF = 640.6 = 6406 S.F.
LTAR 0.10 gpd/S.F.
6.D.SIZE ADJUSTMENT FACTORS:
6.D.1.DOSING IS REQUIRED PER SECTION 6.28.080.H.A (TREATMENT AREA >2000 SF)
6.D.2.PRESSURE DOSED BED (TABLES 6.28-8) = 1.0
6.D.3.CHAMBERS (TABLE 6.28-9)=0.7
6.D.1.A, adj = 6406 SF * 1.0 * 0.7 = 4485 SF
6.E.GRAVELLESS CHAMBER SYSTEM:
6.E.1.INFILTRATOR QUICK4 (STANDARD): 4485 SF / 12 SF/UNIT = 374 UNITS IN A BED CONFIGURATION. USE 384 UNITS IN FOUR (4) 4x24 BEDS.
6.E.2.ADS ARC36 (STANDARD): 4485 SF / 15 SF/UNIT = 299 UNITS IN A BED CONFIGURATION. USE 304 IN FOUR (4) 4x19 BEDS.
7.THIS SYSTEM IS SIZED FOR TYPICAL DOMESTIC WASTES ONLY. BACKWASH OR FLUSHING FLOWS FOR REVERSE OSMOSIS UNITES OR WATER SOFTENERS
AND/OR FILTERS SHOULD NOT BE INTRODUCED INTO THIS SYSTEM.
8.CLEAN OUTS ARE REQUIRED AT THE HOUSE AND AT ALL BENDS AND AT LEAST EVERY 100-FEET BETWEEN THE HOUSE AND THE SEPTIC TANK.
9.THE CONTRACTOR SHALL BE RESPONSIBLE FOR INSTALLING ALL WATER TIGHT COMPONENTS THROUGHOUT THE SYSTEM TO PREVENT INFILTRATION.
10.INSTALL RISERS AS NECESSARY TO BRING ALL ACCESS PORTS TO FINAL GRADE. PORTS SHALL BE MARKED IF CAPS ARE TO BE BURIED.
11.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.
12.LOCATIONS OF ALL COMPONENTS MAY BE VARIED AS NECESSARY AS LONG AS ALL MINIMUM DISTANCES AND SLOPES MEET THOSE REQUIRED.
1.
5
'
±
2'
±
TYPE 5
TANNISH
RED CLAY
TYPE 5
BROWN
SANDY CLAY
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.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.
SEPTIC TANK & PUMP SYSTEM NOTES:
1.SYSTEM TO BE INSTALLED IN CONFORMANCE WITH
MANUFACTURER'S RECOMMENDATIONS.
2.THE DISCHARGE PUMP SYSTEM SHALL BE AN ORENCO
BIOTUBE PROPAK WITH 30 GPM, 1/2 HP, 115 V HIGH HEAD
VERTICAL TURBINE PUMP AND DEMAND DOSE CONTROLS.
FLOATS SHALL BE SET FOR A DOSING VOLUME OF 400
GALLONS (3 DOSES PER DAY). CONTACT SCG ENTERPRISES
AT 303.697.9404 OR VALLEY PRECAST, INC. AT 719.395.6764
FOR SYSTEM SPECIFICATIONS AND INSTALLATION
PROCEDURES.
3.THE SYSTEM SUPPLIER SHALL PROVIDE THE OWNER WITH AN
OPERATIONS AND MAINTENANCE MANUAL WHICH INCLUDES
A MAINTENANCE SCHEDULE.
4.THE PUMP SYSTEMS SHALL BE CONNECTED TO AN ALARM
WHICH SHALL BE BOTH AUDIBLE AND VISIBLE, LOCATED NEAR
A RESIDENCE AND ON A CIRCUIT SEPARATE FROM THE PUMP.
5.TANK DIMENSIONS ARE BASED ON A VALLEY PRECAST, INC.
1,500 GALLON TWO-COMPARTMENT TANK IN SERIES WITH A
1,000 GALLON ONE-COMPARTMENT TANK WITH A HIGH HEAD
PUMP.
Scale: N.T.S.
Septic Tank & Dosing System
1-1/4"Ø PVC
DISTRIBUTION PIPE
1-1/4"Ø PVC
ELBOW
1"Ø BALL VALVE
& TREADED
ASSEMBLY
10"Ø IRRIG.
VALVE BOX
1-1/4" x 1" PVC
REDUCER BUSHING
Scale: N.T.S.
Flush Valve
1-1/2"Ø SCH.80
PVC FROM PUMP
STYROFOAM INSULATED
FIBERGLASS LID WITH
STAINLESS STEEL BOLTS
AND URETHANE GASKET
24"Ø PVC
ENCLOSURE
GRAVEL BASE
ORENCO 4 ZONE
1-1/2"Ø DISTRIBUTING
VALVE ASSEMBLY
(V6404A)CHECK VALVES
Scale: N.T.S.
Automatic Distributing Valve
BOTTOM TO BE LEVEL AND FLAT OVER ENTIRE AREA TO
WITHIN 0.1'±. (TYP.). IF NECESSARY TO ACHIEVE THIS
SURFACE, IMPORT CONCRETE SAND TO USE AS
LEVELING MATERIAL0. REMOVE ANY ENCOUNTERED
BOULDERS AND BACKFILL WITH LOAMY SAND OR SANDY
GRAVELS. DO NOT USE COMPACTED MATERIALS.
GENERAL ABSORPTION AREA NOTES
1.INSTALL CHAMBER UNITS IN ACCORDANCE WITH
MANUFACTURER'S RECOMMENDATIONS.
2.ABSORPTION BEDS SHALL NOT EXCEED 12' WIDE BY
100-FEET IN LENGTH, SHALL PARALLEL THE
TOPOGRAPHY AND SHALL BE INSTALLED IN A
RECTANGULAR PATTERN WHENEVER POSSIBLE.
3.THE BOTTOM OF THE ABSORPTION BED 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 EXCAVATION.
7.TOPSOIL COVER MAY BE VARIED (1-FOOT MINIMUM,
2-FOOT MAXIMUM) TO ALLOW FOR LANDSCAPING.
ATTACH REMOVABLE CAP OR
THREADED CLEANOUT ASSEMBLY.
INSTALL MARKER IF CAP IS TO
BE BURIED.
4"Ø COUPLING (UNION).
USE A HOLE SAW TO CUT
OUT CIRCLE OFF THE
CENTER OF THE UNIT
4"Ø PERFORATED PVC PIPE.
EXTEND PIPE TO REST ON
BOTTOM OF THE BED
4"Ø PVC SOLID
PIPE CUT TO FIT
PREFABRICATED PIPE SUPPORT
OR CHEMICAL RESISTANT ZIP
TIE HANGING SYSTEM (PIPE @
6" MIN. ABOVE BASE )
1-1/4"Ø SCH. 40 PVC
PRESSURE DOSING PIPE WITH
3/16"Ø HOLES DRILLED EVERY
48"O.C., FACING UP. TURN
ONLY THE LAST HOLE FACING
DOWN (FOR DRAINING) AND
INSTALL A 12"x12"
FLAGSTONE OR PAVER ELOW
TO PREVENT SCOUR)
GRAVELLESS CHAMBER SYSTEM:
ADVANCED DRAINAGE SYSTEMS
ARC36 (STANDARD),
INFILTRATOR QUICK 4, OR
ENGINEER APPROVED EQUAL.
COVER WITH 6" OF TOPSOIL
AND REVEGETATE
12
"
M
I
N
.
,
24
"
M
A
X
.
Scale: N.T.S.
Pressure Dosing Chamber Bed
Top
View
5"
Flexible
Boot
106"
56"
Butyl Rubber
Sealant
Section
View
Pump:
·Lowers TSS and improves effluent quality to field
·Easiest pump system to maintain on the market
·Complete installation (wiring, panel, mounting and start-up procedures)
·Complete warranty
Service contracts available for maintenance
111"
11' Long x 7' Wide Inlet Outlet Length Width Height
56" below inlet invert 56" 73" 111" 60" 92" 1,042 gal 2,620 lbs 8,915 lbs 11,735 lbs
60"
68"
Digging Specs Invert Dimensions Net Net Weight
Capacity Lid Tank Total
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' - 0"
DRY 4' - 0"
DESIGN NOTES
·Design per performance test per ASTM C1227
·Top surface area 46.25 ft²
·f'c @ 28 days; concrete = 6,000 PSI Min.
Installation:
·Tank to be set on 5" min. sand bed or pea
gravel
·Tank to be backfilled uniformly on all sides in
lifts less than 24" and mechanically
compacted
·Excavated material may be used for backfill,
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
·Secondary safety screen available with PVC
riser
20" Clear Access
TANK
ID
24" Minimum Height
Ball Valve
73"
19"
4"
Wires to Panel Quick Disconnect
PUMP=30 GPM
400 GAL/DOSE
(Orenco PF300511
or equal)
Water &
Wastewater
·Systems
·Products
·Service
(719) 395-6764
Fax: (719) 395-3727
Website: www.valleyprecast.com
Email: frontdesk@valleyprecast.com
28005 Co. Rd. 317
P.O. Box 925
Buena Vista, CO 81211
Item #
1000T-1CP-HH
Item #
1500T-2CP
1000 Gallon Top Seam
One Compartment with
High Head Pump
1500 Gallon Top Seam
Two Compartment
Water &
Wastewater
·Systems
·Products
·Service
(719) 395-6764
Fax: (719) 395-3727
Website: www.valleyprecast.com
Email: frontdesk@valleyprecast.com
28005 Co. Rd. 317
P.O. Box 925
Buena Vista, CO 81211
Top View
Section View
132"
4"
5"
Butyl Rubber
Sealant
129"
56"
68"
53"
Flexible
Boot
19"19"
20" Clear Access
13' Long x 8' Wide Inlet Outlet Length Width Height
56" below inlet invert 56" 53" 132" 68" 68"
68"
ALLOWABLE BURY
(Based on Water Table)
WATER TABLE ALLOWABLE EARTH
FILL
0' - 0"3' - 0"
1' - 0 "3' - 0"
2' - 0"4' - 0"
3' - 0"4' - 0"
DRY 4' - 0"
DESIGN NOTES
·Design per performance test per ASTM C1227
·Top surface area 62.33 ft²
·f'c @ 28 days; concrete = 6,000 PSI Min.
Installation:
·Tank to be set on 5" min. sand bed or pea
gravel
·Tank to be backfilled uniformly on all sides in
lifts less than 24" and mechanically compacted
·Excavated material may be used for backfill,
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
·PVC or concrete risers available
·Secondary safety screen available with PVC
riser
·Option of pump or siphon installed
TANK
ID
Digging Specs Invert Dimensions
19"
49"
1,002 gal 507 gal 1,509 gal 3,600 lbs 11,180 lbs 14,780 lbs
Net Capacity Net Weight
Inlet Side Outlet Total Lid Tank Total
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
SS
SS
DV
FVFVFVFV
FVFVFVFV
FVFVFVFV
FVFVFVFV
TP#1
CDPHE APPROVED 1,000-GALLON
ONE-COMPARTMENT PRECAST
CONCRETE SEPTIC TANK W/ HIGH
HEAD DOSING PUMP
INSPECTION PORT,
TYP. (4 PER BED)
FLUSH VALVE ASSEMBLY,
TYP. (4 PER BED)
1-1/2"Ø SCH.40 PVC
DISTRIBUTION LINES
& MANIFOLD, TYP.
AUTOMATIC
DISTRIBUTION
VALVE ASSEMBLY
1-1/2"x1-1/4" SCH.40 PVC
REDUCER BUSHING, TYP.
DEMO EX. TANK
MASTER
BEDROOM
NOTE:
PROPERTY LINES EXTEND
WELL BEYOND THE LIMITS
OF THIS DRAWING.
SOUTH WING
TP#2
2 BED
A.D.U.
TP#3 &
PROFILE
W
DIRT ROA
D
D
I
R
T
R
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A
D
EX
.
F
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E
EX. F
E
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PATIO
1 BED
A.D.U.
W. BUTTERMILK RD.
EX. WELL LOCATION
PER DIVISION OF
WATER RESOURCES
100'
SETBACK
GARAGE
GARAGE
C/O
CONNECT TO EX. SEWER
AND INSTALL CLEANOUT
96
(
4
x
2
4
)
Q
U
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4
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7
6
(
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(P
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)
6' MIN, TYP.
35'
30
'
CDPHE APPROVED
1,500-GALLON
TWO-COMPARTMENT PRECAST
CONCRETE SEPTIC TANK
EXTEND NEW
4"Ø SCH40 PVC
100'R SETBACK FROM EX.
WELL LOCATION PER DIVISION
OF WATER RESOURCES
10%-15%
10%
-
1
5
%
15%
-
2
0
%
10%-15%
EX. O
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#
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(REM
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37110DERIC J O N WA
L
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COL O R A D O LICE
N
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D
P
R
O
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E
SSIONA L E N GINEER
10/4/17
00 40'80'
Scale: 1" = 40'
SITE EVALUATION
1. SITE AND SOIL EVALUATIONS WERE PERFORMED BY:
DAVID A. YOUNG, PE
HEPWORTH-PAWLAK GEOTECHNICAL INC.
5020 COUNTY ROAD #154
GLENWOOD SPRINGS, CO 81601
970.945.7988/DAVE@HPGEOTECH.COM
2. EVALUATION DATE: SEPTEMBER 20, 2017.
3. VEGETATION CONSISTS OF NATIVE GRASSES/PLANTS, RABBIT BRUSH AND LOW
SAGE BRUSH.
4. TOPOGRAPHY SLOPES GENTLY TO THE WEST/SOUTHWEST.
5. SOILS CONSIST OF 1-1/2' DARK BROWN TOPSOIL OVER 1-1/2' REDDISH TAN
CLAY W/ WEATHERED SANDSTONE/CLAYSTONE GRAVELS AND 12"-18" ROCKS
OVER 2' OF TANNISH RED CLAY W/ RED WEATHERED SANDSTONE/CLAYSTONE
GRAVELS AND 12"-18" ROCKS OVER BROWN SANDY CLAY WITH SANDSTONE/
CLAYSTONE GRAVELS AND 12"-18" ROCKS. NO WATER WAS ENCOUNTERED IN
THE PROFILE HOLE.
6. SETBACK REQUIREMENTS FOR A TREATMENT LEVEL 1 (TL1) STA TRENCH/BED,
UNLINED SAND FILTER OR SEEPAGE PIT (PER TABLE 6.28-1&2) AND AN
ADWF=640.6 GPD:
6.A. SPRING OR WELL=100'
6.B. POTABLE WATER SUPPLY LINE=25'
6.C. POTABLE WATER SUPPLY CISTERN=25'
6.D. DWELLING=20'
6.E. PROPERTY LINE, PIPE OR LINED IRRIGATION DITCH/POND=10'
6.F. INTERMITTENT IRRIGATION LATERAL, INFILTRATION STRUCTURE=25'
6.G. LAKE, WATER COURSE, IRRIGATION DITCH, STREAM OR WETLAND=100'
6.H. DRY GULCH, CUT BANK OR FILL AREA=25'
6.I. SEPTIC TANK=5'
6.J. RESTRICTIVE LAYER OR GROUNDWATER (VERTICAL): 4' (TREATMENT LEVEL
1, GRAVITY FED)
3. SETBACK REQUIREMENTS FOR THE SEPTIC TANK SHALL BE (PER TABLE 6.28-1):
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/POND=10'
3.F. INTERMITTENT IRRIGATION LATERAL, INFILTRATION STRUCTURE=10'
3.G. LAKE WATER COURSE, IRRIGATION DITCH, STREAM OR WETLAND=100'
3.H. DRY GULCH, CUT BANK OR FILL AREA=10'
3.I. STA TRENCH/BED, UNLINED SAND FILTER OR SEEPAGE PIT=5'
By
Re
v
i
s
i
o
n
No
.
D
a
t
e
923 Cooper Avenue
Suite 201
Glenwood Springs, CO 81601
tele: 970.945.5252
fax: 970.384.2833
Engineer or Surveyor Seal
Sheet
Client Information:
PROJECT NO.
FILE NAME:
Designer:
Drafter:
Date:
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9.8.7.6.5.4.3.2.
10/4/17
BUI
DJW
17030-c-topo.dwg
17030
970.948.2952
CARBONDALE, CO 81623
783 MOUNTAIN VIEW RD
ACME PROPERTY MANGEMENT, INC.
AS
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SURFACE
8'
±
1.
5
'
±
TOPSOIL
TYPE 5
REDDISH
TAN CLAY
Scale: N.T.S.
Site & Soils Evaluation
Vicinity Map
1"=2000'
NO
R
T
H
SITE
To Basalt
To Aspen
H
w
y
.
8
2
O
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C
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W. Buttermilk Sub.
SYSTEM NOTES
1. ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH PITKIN COUNTY REGULATION 6.28 ONSITE WASTEWATER TREATMENT SYSTEMS (OWTS), 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. THIS RESIDENCE CONTAINS THREE (3) SEPARATE OWTS SYSTEMS PRESUMABLY CONSTRUCTED SOMETIME BETWEEN 1970 AND 1990. THIS DESIGN IS
FOR THE REPLACEMENT OF THE EXISTING OWTS #1 ABSORPTION FIELD THAT SERVES THE SOUTH WING OF THE HOUSE AND THE ATTACHED ACCESSORY
DWELLING UNIT (ADU). THE TWO (2) OTHER OWTS SYSTEMS ARE CURRENTLY OPERATING.
3. RESIDENCE IS GREATER THAN 6,000 SF. THEREFORE, A DESIGN FLOW OF 100 gpdc IS REQUIRED PER SECTION 6.28.05.B.
4.DEMAND CALCULATIONS
4.A. SYSTEM DESIGN PARAMETERS: TWO (2) BEDROOMS + 1 BEDROOM ADU + A KITCHEN SINK WITH GARBAGE GRINDER & A DISHWASHER WHICH
ALSO SERVE THE MASTER BEDROOM AND A 2-PERSON BUNK AREA WHICH ARE OTHERWISE ON A SEPARATE OWTS (OWTS #2).
4.B. AVERAGE DAILY WASTEWATER FLOW (ADWF):
4.B.1. ADWF = 100 gpd * (2 BEDROOMS * 2 PERSONS/BEDROOM) + 100 gpd * (1 BEDROOM ADU * 2 PERSONS/BEDROOM) + (1.8 gpd + 5.8 gpd) *
(2 BEDROOMS * 2 PERSONS/BEDROOM * (100gpd /75 gpd)) = 640.6 gpd
5.SEPTIC TANK:
5.A. ADWF * 2.0 RETENTION FACTOR = 1,282-GALLONS
5.A.1. EXISTING TANK IS AGED AND NOT LIKELY IN SUFFICIENT CONDITION FOR LONG TERM CONTINUED USE. REPLACE WITH NEW.
5.A.2. INSTALL A NEW 1500-GALLON TWO COMPARTMENT TANK IN SERIES WITH A 500 GALLON SINGLE COMPARTMENT TANK WITH AN A PRESSURE
DOSING PUMP SYSTEM.
6.ABSORPTION AREA CALCULATIONS
6.A. GROUNDWATER WAS NOT ENCOUNTERED AND THE PROPERTY CONTAINS SLOPES LESS THAN 20%.
6.B. SOILS WERE ANALYZED BY BOUNDARIES UNLIMITED INC. (SEPTEMBER 20, 2017) TO BE SANDY HEAVY CLAYS WITH GRAVEL AND BOULDERS
(TYPE-5) WITH A TREATMENT LEVEL 1 LONG TERM ACCEPTANCE RATE (LTAR) OF 0.10 gpd/SF (TABLE 6.28-7).
6.C. MINIMUM SOIL TREATMENT AREA, A:
A = ADWF = 640.6 = 6406 S.F.
LTAR 0.10 gpd/S.F.
6.D. SIZE ADJUSTMENT FACTORS:
6.D.1. DOSING IS REQUIRED PER SECTION 6.28.080.H.A (TREATMENT AREA >2000 SF)
6.D.2. PRESSURE DOSED BED (TABLES 6.28-8) = 1.0
6.D.3. CHAMBERS (TABLE 6.28-9)=0.7
6.D.1. A, adj = 6406 SF * 1.0 * 0.7 = 4485 SF
6.E. GRAVELLESS CHAMBER SYSTEM:
6.E.1. INFILTRATOR QUICK4 (STANDARD): 4485 SF / 12 SF/UNIT = 374 UNITS IN A BED CONFIGURATION. USE 384 UNITS IN FOUR (4) 4x24 BEDS.
6.E.2. ADS ARC36 (STANDARD): 4485 SF / 15 SF/UNIT = 299 UNITS IN A BED CONFIGURATION. USE 304 IN FOUR (4) 4x19 BEDS.
7. THIS SYSTEM IS SIZED FOR TYPICAL DOMESTIC WASTES ONLY. BACKWASH OR FLUSHING FLOWS FOR REVERSE OSMOSIS UNITES OR WATER SOFTENERS
AND/OR FILTERS SHOULD NOT BE INTRODUCED INTO THIS SYSTEM.
8. CLEAN OUTS ARE REQUIRED AT THE HOUSE AND AT ALL BENDS AND AT LEAST EVERY 100-FEET BETWEEN THE HOUSE AND THE SEPTIC TANK.
9. THE CONTRACTOR SHALL BE RESPONSIBLE FOR INSTALLING ALL WATER TIGHT COMPONENTS THROUGHOUT THE SYSTEM TO PREVENT INFILTRATION.
10. INSTALL RISERS AS NECESSARY TO BRING ALL ACCESS PORTS TO FINAL GRADE. PORTS SHALL BE MARKED IF CAPS ARE TO BE BURIED.
11. 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.
12. LOCATIONS OF ALL COMPONENTS MAY BE VARIED AS NECESSARY AS LONG AS ALL MINIMUM DISTANCES AND SLOPES MEET THOSE REQUIRED.
1.
5
'
±
2'
±
TYPE 5
TANNISH
RED CLAY
TYPE 5
BROWN
SANDY CLAY
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.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.
SEPTIC TANK & PUMP SYSTEM NOTES:
1. SYSTEM TO BE INSTALLED IN CONFORMANCE WITH
MANUFACTURER'S RECOMMENDATIONS.
2. THE DISCHARGE PUMP SYSTEM SHALL BE AN ORENCO
BIOTUBE PROPAK WITH 30 GPM, 1/2 HP, 115 V HIGH HEAD
VERTICAL TURBINE PUMP AND DEMAND DOSE CONTROLS.
FLOATS SHALL BE SET FOR A DOSING VOLUME OF 400
GALLONS (3 DOSES PER DAY). CONTACT SCG ENTERPRISES
AT 303.697.9404 OR VALLEY PRECAST, INC. AT 719.395.6764
FOR SYSTEM SPECIFICATIONS AND INSTALLATION
PROCEDURES.
3. THE SYSTEM SUPPLIER SHALL PROVIDE THE OWNER WITH AN
OPERATIONS AND MAINTENANCE MANUAL WHICH INCLUDES
A MAINTENANCE SCHEDULE.
4. THE PUMP SYSTEMS SHALL BE CONNECTED TO AN ALARM
WHICH SHALL BE BOTH AUDIBLE AND VISIBLE, LOCATED NEAR
A RESIDENCE AND ON A CIRCUIT SEPARATE FROM THE PUMP.
5. TANK DIMENSIONS ARE BASED ON A VALLEY PRECAST, INC.
1,500 GALLON TWO-COMPARTMENT TANK IN SERIES WITH A
1,000 GALLON ONE-COMPARTMENT TANK WITH A HIGH HEAD
PUMP.
Scale: N.T.S.
Septic Tank & Dosing System
1-1/4"Ø PVC
DISTRIBUTION PIPE
1-1/4"Ø PVC
ELBOW
1"Ø BALL VALVE
& TREADED
ASSEMBLY
10"Ø IRRIG.
VALVE BOX
1-1/4" x 1" PVC
REDUCER BUSHING
Scale: N.T.S.
Flush Valve
1-1/2"Ø SCH.80
PVC FROM PUMP
STYROFOAM INSULATED
FIBERGLASS LID WITH
STAINLESS STEEL BOLTS
AND URETHANE GASKET
24"Ø PVC
ENCLOSURE
GRAVEL BASE
ORENCO 4 ZONE
1-1/2"Ø DISTRIBUTING
VALVE ASSEMBLY
(V6404A)CHECK VALVES
Scale: N.T.S.
Automatic Distributing Valve
BOTTOM TO BE LEVEL AND FLAT OVER ENTIRE AREA TO
WITHIN 0.1'±. (TYP.). IF NECESSARY TO ACHIEVE THIS
SURFACE, IMPORT CONCRETE SAND TO USE AS
LEVELING MATERIAL0. REMOVE ANY ENCOUNTERED
BOULDERS AND BACKFILL WITH LOAMY SAND OR SANDY
GRAVELS. DO NOT USE COMPACTED MATERIALS.
GENERAL ABSORPTION AREA NOTES
1. INSTALL CHAMBER UNITS IN ACCORDANCE WITH
MANUFACTURER'S RECOMMENDATIONS.
2. ABSORPTION BEDS SHALL NOT EXCEED 12' WIDE BY
100-FEET IN LENGTH, SHALL PARALLEL THE
TOPOGRAPHY AND SHALL BE INSTALLED IN A
RECTANGULAR PATTERN WHENEVER POSSIBLE.
3. THE BOTTOM OF THE ABSORPTION BED 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 EXCAVATION.
7. TOPSOIL COVER MAY BE VARIED (1-FOOT MINIMUM,
2-FOOT MAXIMUM) TO ALLOW FOR LANDSCAPING.
ATTACH REMOVABLE CAP OR
THREADED CLEANOUT ASSEMBLY.
INSTALL MARKER IF CAP IS TO
BE BURIED.
4"Ø COUPLING (UNION).
USE A HOLE SAW TO CUT
OUT CIRCLE OFF THE
CENTER OF THE UNIT
4"Ø PERFORATED PVC PIPE.
EXTEND PIPE TO REST ON
BOTTOM OF THE BED
4"Ø PVC SOLID
PIPE CUT TO FIT
PREFABRICATED PIPE SUPPORT
OR CHEMICAL RESISTANT ZIP
TIE HANGING SYSTEM (PIPE @
6" MIN. ABOVE BASE )
1-1/4"Ø SCH. 40 PVC
PRESSURE DOSING PIPE WITH
3/16"Ø HOLES DRILLED EVERY
48"O.C. (FACING UP)
GRAVELLESS CHAMBER SYSTEM:
ADVANCED DRAINAGE SYSTEMS
ARC36 (STANDARD),
INFILTRATOR QUICK 4, OR
ENGINEER APPROVED EQUAL.
COVER WITH 6" OF TOPSOIL
AND REVEGETATE
12
"
M
I
N
.
,
24
"
M
A
X
.
Scale: N.T.S.
Pressure Dosing Chamber Bed
Top
View
5"
Flexible
Boot
106"
56"
Butyl Rubber
Sealant
Section
View
Pump:
·Lowers TSS and improves effluent quality to field
·Easiest pump system to maintain on the market
·Complete installation (wiring, panel, mounting and start-up procedures)
·Complete warranty
Service contracts available for maintenance
111"
11' Long x 7' Wide Inlet Outlet Length Width Height
56" below inlet invert 56" 73" 111" 60" 92" 1,042 gal 2,620 lbs 8,915 lbs 11,735 lbs
60"
68"
Digging Specs Invert Dimensions Net Net Weight
Capacity Lid Tank Total
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' - 0"
DRY 4' - 0"
DESIGN NOTES
·Design per performance test per ASTM C1227
·Top surface area 46.25 ft²
·f'c @ 28 days; concrete = 6,000 PSI Min.
Installation:
·Tank to be set on 5" min. sand bed or pea
gravel
·Tank to be backfilled uniformly on all sides in
lifts less than 24" and mechanically
compacted
·Excavated material may be used for backfill,
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
·Secondary safety screen available with PVC
riser
20" Clear Access
TANK
ID
24" Minimum Height
Ball Valve
73"
19"
4"
Wires to Panel Quick Disconnect
PUMP=30 GPM
400 GAL/DOSE
Water &
Wastewater
·Systems
·Products
·Service
(719) 395-6764
Fax: (719) 395-3727
Website: www.valleyprecast.com
Email: frontdesk@valleyprecast.com
28005 Co. Rd. 317
P.O. Box 925
Buena Vista, CO 81211
Item #
1000T-1CP-HH
Item #
1500T-2CP
1000 Gallon Top Seam
One Compartment with
High Head Pump
1500 Gallon Top Seam
Two Compartment
Water &
Wastewater
·Systems
·Products
·Service
(719) 395-6764
Fax: (719) 395-3727
Website: www.valleyprecast.com
Email: frontdesk@valleyprecast.com
28005 Co. Rd. 317
P.O. Box 925
Buena Vista, CO 81211
Top View
Section View
132"
4"
5"
Butyl Rubber
Sealant
129"
56"
68"
53"
Flexible
Boot
19"19"
20" Clear Access
13' Long x 8' Wide Inlet Outlet Length Width Height
56" below inlet invert 56" 53" 132" 68" 68"
68"
ALLOWABLE BURY
(Based on Water Table)
WATER TABLE ALLOWABLE EARTH
FILL
0' - 0"3' - 0"
1' - 0 "3' - 0"
2' - 0"4' - 0"
3' - 0"4' - 0"
DRY 4' - 0"
DESIGN NOTES
·Design per performance test per ASTM C1227
·Top surface area 62.33 ft²
·f'c @ 28 days; concrete = 6,000 PSI Min.
Installation:
·Tank to be set on 5" min. sand bed or pea
gravel
·Tank to be backfilled uniformly on all sides in
lifts less than 24" and mechanically compacted
·Excavated material may be used for backfill,
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
·PVC or concrete risers available
·Secondary safety screen available with PVC
riser
·Option of pump or siphon installed
TANK
ID
Digging Specs Invert Dimensions
19"
49"
1,002 gal 507 gal 1,509 gal 3,600 lbs 11,180 lbs 14,780 lbs
Net Capacity Net Weight
Inlet Side Outlet Total Lid Tank Total
11/3/2017 Pitkin County Mail - 1313 W. Buttermilk
https://mail.google.com/mail/u/0/?ui=2&ik=c2c72bb885&jsver=ZOgYGgvFjfY.en.&view=pt&msg=15f82768caf7edb2&search=inbox&siml=15f82768caf7…1/3
Bryan Daugherty <bryan.daugherty@pitkincounty.com>
1313 W. Buttermilk
Deric Walter <Deric@bu-inc.com>
To: Bryan Daugherty <bryan.daugherty@pitkincounty.com>
Cc: "Greg Peters (c8excavation@gmail.com)" <c8excavation@gmail.com>
Brian,
Please see my responses below in red and the a ached revised plan.
Deric J. Walter, PE
Boundaries Unlimited Inc.
Civil Engineers, Surveyors & Beyond
923 Cooper Ave. | Ste. 201 | Glenwood Springs | CO | 81601
T: (970) 945-5252 Ext 1 | C: (970) 618-7035 | deric@bu-inc.com
Some national parks have long waiting lists for camping reservations.
Something is very wrong when you have to wait a year to sleep next to a tree. (courtesy of gcfl.net)
CONFIDENTIALITY NOTICE: The information contained in this e-mail is privileged and confidential, and is intended only for the use of the individual or entity named above. If you are not the intended recipient, you are notified that any disclosure, copying, distribution, electronic stor
communication in error, please notify us immediately by e-mail, attaching the original message, and delete the original message from your computer and any network to which your computer is connected.
From: Bryan Daugherty [mailto:bryan.daugherty@pitkincounty.com]
Sent: Thursday, November 2, 2017 4:41 PM
To: Deric Walter
Subject: Re: 1313 W. Buttermilk
I was doing to review for the new system for 1313 W Buttermilk. I have a few requests for approval.
- I need the specs for the pump to be used with a pump curve to ensure enough pressure for the ADV to function and system to pressurize. Valley Precast is supplying the Orenco PF300511
11/3/2017 Pitkin County Mail - 1313 W. Buttermilk
https://mail.google.com/mail/u/0/?ui=2&ik=c2c72bb885&jsver=ZOgYGgvFjfY.en.&view=pt&msg=15f82768caf7edb2&search=inbox&siml=15f82768caf7…2/3
- I am concerned about drainage and risk of freezing of the field area with all of the orifices facing upward. I have added a single turned down hole at the end of each chamber row for drainag
scour protection (see attached).
- The drawing is not clear that the ADV is positioned at the highest elevation between the field and tanks to ensure drainback, topography lines will help clarify. I don’t have any topographic co
ADV on the drawing and added an annotation so that it is clearly on the uphill side of the system and higher than the tanks and field.
One other thing I noticed is that the fixtures do not need to be counted if the system is being sized by bedroom count. The fixtures are included in those calculations. If this were a commercia
bedrooms not applicable then the fixture/use calculations would be appropriate. If you recall, this residence has 3 older ISDS systems. This system service 2 bedrooms, a 1 bedroom ADU an
Bedroom/Bath is on a separate system, but the residential use of the kitchen is still for the whole house. That is why the design has an additional fixture inclusion for 2 persons using the kitch
On Fri, Sep 29, 2017 at 10:57 AM, Deric Walter <Deric@bu-inc.com> wrote:
11/3/2017 Pitkin County Mail - 1313 W. Buttermilk
https://mail.google.com/mail/u/0/?ui=2&ik=c2c72bb885&jsver=ZOgYGgvFjfY.en.&view=pt&msg=15f82768caf7edb2&search=inbox&siml=15f82768caf7…3/3
Kurt,
I’ve been discussing the design of a system repair for 1313 W. Buttermilk with Bryan while you’ve been out of the office. He said you’re working, from home and that I should email you.
The property at 1313 W. Buttermilk has 3 separate OWTS systems on it and one of them is failing. I performed percolation test and a soils analysis through observation and we’re dealing wit
uncommon in W. Buttermilk. The soil strata varied in color to 8’, but all layers were laden with low permeability heavy clays. The home as a whole is over 6000, but this particular OWTS is on
attached 1-bedroom ADU and the house kitchen. The master bedroom/bath and a bunkroom (pullout couch) are on a 2nd OWTS and a nearby (20’ away) detached 2 bedroom ADU is on the
(south wing) doesn’t have any lavish showers, tubs or other high demand features typical of larger homes in the Aspen area.
Because this is a repair and a secondary part of the overall home, I’m hoping that the Design Flow for this particular OWTS can be considered at 75 gpdc or that if nothing else, the 1 bedroom
run some preliminary numbers using a gravelless chamber system and an unlined sand filter system (TL3) and both result in over 4000 SF of bed area which has to be broken down into 4 be
system were sized according to the older Q*sqrt(t)/5 rule, we’d only be looking at about 2200 SF of bed. I’m told that this OWTS operated just fine since the early 1980s, so it seems reasona
using 75 gpdc instead of 100 gpd. As an FYI, we priced out the unlined sand filter option and it’s more than double the cost of Infiltrators, so the client doesn’t want to go there.
If this is confusing, then please call me. It’s always easier to talk over the phone than through these emails.
Thanks!
-Deric
Deric J. Walter, PE
Boundaries Unlimited Inc.
Civil Engineers, Surveyors & Beyond
923 Cooper Ave. | Ste. 201 | Glenwood Springs | CO | 81601
T: (970) 945-5252 Ext 1 | C: (970) 618-7035 | deric@bu-inc.com
Thank you for your email. Your credit card has been charged $4.99 for the first 10 words
and $1.99 for each additional word in your message. (JOKE courtesy of gcfl.net)
CONFIDENTIALITY NOTICE: The information contained in this e-mail is privileged and confidential, and is intended only for the use of the individual or entity named above. If you are not the intended recipient, you are notified that any disclosure, copying, distribution, electronic stor
communication in error, please notify us immediately by e-mail, attaching the original message, and delete the original message from your computer and any network to which your computer is connected.
--
Bryan Daugherty, REHS
Pitkin County Environmental Health
970-920-5076
17030-OWTS.pdf
1676K
October 5, 2017
Darrell Rankin
c/o ACME Property Management Inc.
783 Mountain View Road
Carbondale, CO 81623
RE: Soils Investigation: 1313 W. Buttermilk Road, Aspen, CO
BUI #17030.01
Mr. Rankin:
Per your request, Boundaries Unlimited Inc. (BUI) performed a soils investigation using percolation
testing and a visual and tactile evaluation of a soil profile test pit on September 20, 2017 at the following
address:
1313 W. Buttermilk Road
Aspen, CO
PIN#2735-033-01-001
Section 3 & 10, T.10S., R.85W.
The 57.4 acre property is currently developed with a 6,000+ SF single family residence with an attached
ADU, a detached ADU. Wastewater is currently managed of by three (3) separate Onsite Wastewater
Treatment Systems (OWTS) as follows:
OWTS #1: South Wing - 2 secondary bedrooms/baths, attached 1 bedroom ADU, and the house kitchen.
OWTS #2: West Wing - master bedroom/bath and a secondary 2-person bunkroom (pullout couch)
OWTS #3: Detached ADU - 2 bedrooms
The absorption field for OWTS #1 has failed, while OWTS #2 and #3 continue to function under the
currently loads. This soils investigation is for the purpose of repairing or altering OWTS #1 downhill
and to the west of the existing absorption field at a location which is outside the irrigated lawn. Please
see Figure 1 on the next page.
The site topography in the area of the proposed absorption field slopes gently from northeast to
southwest at a grade of approximately 10%-15% and is vegetated with native grasses, rabbitbrush and
low lying sagebrush. No streams, lakes, ponds, ditches or wetlands exist within 100’ of the proposed
absorption filed. Observed soils consist of 1-1/2’ dark brown topsoil over 1-1/2' of moist stiff reddish
tan clay w/ weathered sandstone/claystone gravels and 12"Ø-18"Ø rocks over 2' of moist stiff tannish
red clay w/ red weathered sandstone/claystone gravels and 12"Ø -18"Ø rocks over moist stiff brown
sandy clay with sandstone/claystone gravels and 12"Ø -18"Ø rocks to a profile depth of 8’. When hand
kneaded and rolled, the three clay layers each quickly formed smooth ribbons. No groundwater, soil
mottling (indicative of seasonal high ground water) or bedrock was encountered in the profile hole. See
the attached Results of Percolation Test.
Darrell Rankin
RE: Soils Investigation: 1313 W. Buttermilk Road, Aspen, CO
BUI #17030.01
Page 2 of 3
Three (3) percolation tests were performed in proposed absorption field area at depths of 46”-54” below
the surface in the tannish red clays with infiltration rates of 60-150 minutes per inch (mpi) with an
average of 120 mpi. Test pits were excavated using a mini-track hoe excavator. The profile/evaluation
pit was excavated in the location of Test Pit #3 after the percolation tests had been completed. An
additional undocumented test was performed in the deeper brown sandy clay, to estimate if the deeper
soils might be have a faster infiltrative rate, but no improvement was observed.
Based on the investigation, the soils are Soil Type-5 with Long Term Acceptance Rate (LTAR) of 0.10
gallons per square foot under a Treatment Level 1 (TL1) or 0.15 gallons per square foot for a Treatment
Level 2 (TL2) or higher.
Darrell Rankin
RE: Soils Investigation: 1313 W. Buttermilk Road, Aspen, CO
BUI #17030.01
Page 3 of 3
The anticipated typical setback requirements for a TL1 STA trench/bed, unlined sand filter or seepage
pit are (per Tables 6.28-1&2):
Spring or well=100'
Potable water supply line=25'
Potable water supply cistern=25'
Dwelling=20'
Property line, pipe or lined irrigation ditch/pond=10'
Intermittent irrigation lateral, infiltration structure=25'
Lake, water course, irrigation ditch, stream or wetland=100'
Dry gulch, cut bank or fill area=25'
Septic tank=5'
Restrictive layer or groundwater (vertical): 4' (treatment level 1, gravity fed)
The anticipated typical setback requirements for the septic tank are (per table 6.28-1):
Spring or well=50'
Potable water supply line=10'
Potable water supply cistern=25'
Dwelling=5'
Property line, pipe or lined irrigation ditch/pond=10'
Intermittent irrigation lateral, infiltration structure=10'
Lake water course, irrigation ditch, stream or wetland=100'
Dry gulch, cut bank or fill area=10'
Sta trench/bed, unlined sand filter or seepage pit=5'
If you have any questions, please feel free to contact me at 945.5252 x 1.
Sincerely,
Deric J. Walter, PE #37110
Boundaries Unlimited Inc.
deric@bu-inc.com
Enc.
RESULTS OF PERCOLATION TEST BUIPROJECT #
ADDRESS DESCRIPTION DATE
DEPTH AND DIAMETER OF HOLE #1 " @ " 0 #2 119 " O #3 119 10
APPROX. GALS. ADDED: HOLE #1 HOLE #2 HOLE #3
TEST HOLES WERE PRE-SOAKED FROM: (Date) (Time) TO: (Date) (Time)
1 Inl r- -L4 1 1!\1 r lcn 1 Ir\1 r- Jtn
AVERAGE PERCOLATION RATE: MPI PROFILE HOLE
AND SOIL DESCRIPTION
REMARKS , (ie. topography, ambient/soil/water temperatures,
insulation on site, weather, vegetation, site description)
BY
Surveying 923 Cooper Avenue Scale: 1"=
& vr�Pd Suite 201 Date:
Glenwood Springs, CO 81601
p.. tele: 970.945.5252 Proj #:
fax:970.384.2833 File: