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<br />1. GENERAL INSTALLATION POLICY INFORMATION
<br />The policy contained herein describes specific policy information and purchaser requirements for underground
<br />wastewater precast concrete tanks and structures (hereon referred as TANK, including grease interceptors, sand -oil
<br />interceptors, sand traps, stormwater interceptors, septic tanks, clarifiers and holding tanks. Other Jensen Precast
<br />company policies, including shipping, terms and conditions, ordering instructions, and others also apply. Contact
<br />Jensen Precast for complete information.
<br />In general, Jensen Precast provides delivery and setting of the TANK and sealing of the TANK in accordance with
<br />the provisions of this policy. In a situation where our truck cranes cannot set the TANK for whatever reason, we will
<br />provide a representative to supervise in the proper setting of the TANK and then seal the primary components as
<br />specified herein.
<br />Jensen Precast accepts responsibility for proper setting, assembly, and sealing of the TANK when installed or
<br />supervised by Jensen Precast or an authorized representative. A TANK handled, moved, or installed without Jensen
<br />Precast supervision, could nullify Jensen Precast's responsibility of warranty.
<br />NOTE: Failure to follow proper TANK installation and or sealing procedures may result in structural
<br />damage to the system or compromise its functional design along with nullifying product warranties.
<br />2. EXCAVATION AND SITE PREPARATION
<br />The TANK must be set on a properly prepared base to ensure against movement of either the TANK or the inlet and
<br />outlet lines. The excavation shall be the proper width and length to accept the model selected and shall have enough
<br />extra width and length to allow for safe installation and sealing of the components. Suitable native soil or sub -base
<br />shall be prepared to handle anticipated loads. The excavation shall be bedded with suitable granular material and
<br />shall be compacted to 90% of it's maximum dry density in accordance with ASTM D 1557 or to the requirements of
<br />the project geotechnical engineer. The bottom of the excavation shall be graded level.
<br />The area around the tank must be cleared to a minimum of 2' around the tank and 3' around any joint to be sealed.
<br />The excavation's slope, benching or shoring shall comply with the requirements of OSHA 29 CFR 1926 Subpart P.
<br />Jensen Precast will not violate this OSHA standard in the coarse of setting and sealing the TANK.
<br />On battery TANK systems (multible-tanks joined together) with capacities in excess of 5,000 gallons, redwood
<br />grade boards shall be used to ensure a level and stable tank joint. A minimum of two 2" x 6" grade boards, laid flat,
<br />running the full length of the entire TANK assembly directly under the outside walls shall be used. The top of the
<br />compacted fill material shall match the top of redwood grade boards prior to setting the TANK. A stringline or other
<br />suitable means for aligning tanks shall be provided amd in place prior to installation.
<br />The owner, customer, contractor, or others shall be responsible for the following:
<br />1. Two workers or laborers to direct and assist the setting of, and location of the TANK.
<br />2. Providing a properly prepared, sized, compacted base and graded excavation.
<br />3. Supplying and installing redwood grade boards under battery TANK.
<br />4. Providing job site safety, excavating safety, shoring as required, water and or flotation control.
<br />5. Completing the entire installation and all other site work not specified herein.
<br />3. SETTING AND INSTALLATION
<br />Jensen Precast requires assistance from the customer or contractor in setting, sealing, and placing the TANK La
<br />minimum of two workers is reauiredl. Access and setting location for our boom truck or other equipment must be
<br />acceptable to our driver or representative. Tanks 2000 gallons and larger require extreme caution due to the weight
<br />of the product. There may be situations where an outside crane may be needed to set the product. Contact Jensen
<br />Precast for details.
<br />Since site conditions, products, and delivery equipment vary tremendously, the logistics must be carefully
<br />considered to determine the best possible approach for delivery and setting, including but not limited to:
<br />MANUFACTURER OF PRECAST CONCRETE PRODUCTS 3
<br />Tank Installation Procedures - rev012010.doc
<br />1200 GALLON
<br />GREASE INTERCEPTOR
<br />MODEL JP1200ECE-G
<br />LISTED BY UPC®
<br />NAPA AND PLACER COUNTY,
<br />CITY OF ROSEVILLE
<br />8'-6"
<br />I II I
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<br />TOP VIEW
<br />LIFTING LOOP
<br />(COVERS &RINGS REMOVED)
<br />24" CAST IRON FRAMES AND COVERS
<br />WITH GASKET (GASTIGHT) 3 TOTAL
<br />3", 6" AND 12"
<br />GR2432 GRADE RINGS
<br />~fAS REQUIRED
<br />2'-6" TO 7'-6" a .. a' a' AT EXTRA COST
<br />OUTLET
<br />INVERT
<br />6'-6"
<br />OPERATING CAPACITY: 1,200 GALLONS. SIDE SECTION VIEW
<br />DESIGN LOAD: H-20 TRAFFIC WITH DRY SOIL CONDITIONS
<br />(WATER LEVEL BELOW TANK) AND 1'-6' EARTH COVER.
<br />SUITABLE SUB -BASE BEDDED WITH GRANULAR MATERIAL SHALL BE
<br />PREPARED TO HANDLE ANTICIPATED LOADS.
<br />FOR COMPLETE DESIGN AND PRODUCT INFORMATION
<br />CONTACT JENSEN PRECAST.
<br />Jensen Precast reserves the right to make changes to product design
<br />7/2/07 and/or dimensions without notice. Please contact Jensen Precast
<br />J 007 Jensen
<br />Pre P_A.dwg whenever necessary for confirmation or advice on product design.
<br />m 2007 Jensen Precost
<br />MINIMUM EXCAVATION
<br />7'-0" x 9'-6"
<br />x REQ'D DEPTH
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<br />AW PRECAST
<br />1. The capacity of the crane, whether it's a Jensen Precast truck crane or contractor's crane to be used.
<br />2. The maximum product weight relative to the setting distance from the center of the crane to the center of
<br />the excavation which cannot exceed our truck crane's rated capacity and setback distance from the
<br />excavation.
<br />3. The type of terrain, site slope, and ground conditions for outrigger footing.
<br />4. The access route for boom truck or other equipment.
<br />5. The overhead restrictions (power lines, trees etc) and other physical constraints.
<br />ANY of the above could prevent Jensen Precast from setting the TANK.
<br />NOTE: If for any reason Jensen Precast cannot set the TANK, Jensen Precast will not be responsible or
<br />charged for setting by any other means.
<br />Check that the tank is level while connected to the crane.
<br />The owner, customer, contractor, or others shall be responsible for the following:
<br />1. Finished grading, leveling and positioning of TANK, and access openings.
<br />2. Grouting, sealing, setting and adjusting of grade rings, risers, frames, covers, and all other hardware and
<br />appurtenances.
<br />3. Supplying and installing inlet and outlet pipes.
<br />4. Sealing above the top of the TANK.
<br />5. Any and all permits, licenses, tests, or approvals from any administrative authority that are required for
<br />installation of the TANK.
<br />4. VENTILATION
<br />The TANK is equiped with inlet & outlet tee's which allow gases to escape the TANK atmosphere into the building
<br />plumbing / ventilation system as prescribed by the Uniform Plumbing Code (UPC) unless local regulations
<br />supercede. Failure to provide proper ventilation for the TANK could result in an odor problem. Please consult the
<br />Uniform Plumbing Code and/or local regualtions for additional information. If additional venting requirements are
<br />required, contact Jensen Precast.
<br />5. TANK SEALING (BATTERY TANKS AND TANKS WITH HORIZONAL SEAMS)
<br />For installation of sectional TANKS requiring job site joint sealing, Jensen Precast will seal the TANK only. The
<br />owner, customer, or contractor shall be responsible for sealing or grouting of grade rings, risers, covers, inlets and
<br />outlets if required. The TANK must be dry in order for the sealant to bond properly to the concrete. The sealant
<br />must completly cure according to the time table below before conduction a water -tight testing.
<br />Type of Water Test
<br />Ambient Temperature Cure Time hours
<br />To Operation Level
<br />Greater Than 70' F 24
<br />Less Than 70' F 48
<br />To Top of Tank
<br />All 72
<br />Failure to follow these guidelines or not allowing for a full cure of the joint sealant could cause the TANK to fail
<br />water testing and possibly void Jensen Precast responsibility and product warranty.
<br />6. BACKFILLING
<br />Failure to comply with proper backfill procedures could result in structural damage or leakage from pipe
<br />connections, or leakage from the TANK, due to settling, point loading, impacting, etc. Backfill shall be suitable
<br />clean material and shall be laid in lifts limited to 24" and adequately compacted from bottom to top to prevent
<br />movement or settling under the pipe or fittings. Only mechanical backfilling methods can be utilized; water -
<br />jetting (liquification of backfill dirt) is not acceptable and could damge the TANK.
<br />MANUFACTURER OF PRECAST CONCRETE PRODUCTS 4
<br />Tank Installation Procedures - rev012010.doc
<br />GRADE RINGS/RISERS
<br />MODEL 2432
<br />24" I.D., 4" WALL
<br />CAUTION: High slump or flowable backfill like cement slurries must not be laid in lifts greater than 24" and
<br />must be allowed to set up before the next lift is laid. It is recommended that before using flowable backfills,
<br />contact Jensen Precast to discuss procedures for your application.
<br />7. WATERTIGHT TESTING OVERVIEW
<br />When watertight testing is required during inspection, testing must be completed and approved after installation, but
<br />before the tank is put into service. Testing for watertighness shall be performed using either hydrostatic water test or
<br />vacuum test per ASTM C1227-09 section 9 or ASTM C1613 section 9. Standard water test are conducted up to the
<br />outlet of the tank per ASTM. Although ASTM does not address infiltration tests for tanks equipped with top slabs, if
<br />required they are conducted up to the top of the top of slab following ASTM procedures.
<br />Warning: Water tests conducted above the lid of the tank may have structrual implications and could exceed
<br />the structural design of the tank. Contact Jensen Precast for complete details.
<br />TANK with capacities of 2000 gallons or greater have specific backfill requirements before water testing. See
<br />section 10.
<br />The owner, customer, contractor, or others shall be solely responsible for the following:
<br />1. Conducting and approval of the test.
<br />2. Providing water and means to pump or evacuate water for testing or any subsequent retesting.
<br />3. Providing the vaccum pump, seals for access opening and pipe plugs.
<br />4. Sealing or testing grade rings, risers, covers, other openings, etc.
<br />5. Any required sealing and testing of inlet and outlet pipelines.
<br />8. PRE-TEST INSPECTION
<br />Before any applicable tests are performed and before the TANK is placed into service, a visual inspection is to be
<br />performed to insure that the TANK is free of trash and debris that could prevent the TANK from functioning
<br />properly. All foreign objects such as rocks, trash, tools, or construction materials left inside the TANK from the
<br />installation process should be removed and properly disposed. Check that the tank is level.
<br />Check that the inlet and outlet pipe are properly connected and sealed to the tank. Check the tank inlet, baffle and
<br />outlet have the appropiate pipe fitting attached and have no obstructions.
<br />9. WATER TESTING TANKS UP TO 1500 GALLONS
<br />The TANK shall be filled to the operational liquid level (outlet invert) with water and allowed to stand to achieve
<br />complete concrete absorption, then refilled to the same level. Once refilled, there shall be no measurable liquid loss
<br />in the following hour. (Ref. ASTM C-1227-07 9.2.2)
<br />10. WATER TESTING TANKS 2000 GALLONS AND GREATER
<br />All TANKS of 2000 gallon capacity or greater and all battery TANKS must be backfilled to the outlet pipe when
<br />water testing. Warning: Water testing tanks with a liquid capacity of 2000 gallons or greater without
<br />backfilling could damage the tank. The TANK shall be filled to the operational liquid level with water and
<br />allowed to stand to achieve complete concrete absorption, then refilled to the same level. Once refilled, there shall
<br />be no measurable liquid loss in the following hour. (Ref. ASTM C-1227-07 9.2.2)
<br />If the Administractive Authority requires visusal inspection of the exterior walls during the water test, then use the
<br />following procedures.
<br />SINGLE TANK UNITS: Backfilling in increments can accomplish an exterior wall inspection when done in 2 foot
<br />lifts. To begin introduce, 2 feet of water in the bottom of the TANK. Once inspected, backfill and compact 2 feet of
<br />the outside walls, after compaction add an additional 2 feet of water into the tank. Inspect the outside walls as
<br />previously done and repeat these procedures until completely inspected and backfilled.
<br />MANUFACTURER OF PRECAST CONCRETE PRODUCTS 5
<br />Tank Installation Procedures - rev012010.doc
<br />TRENCH STRUCTURAL DETAIL'I
<br />SECTION A -A
<br />1
<br />12"
<br />DESCRIPTION
<br />APPROX.
<br />WEIGHT
<br />2432 GR -03 GRADE RING
<br />92 LBS.
<br />2432 GR -06 GRADE RING
<br />183 LBS.
<br />2432 GR -12 GRADE RING
<br />366 LBS.
<br />CONFORMS TO CURRENT SPECIFICATIONS:
<br />ASTM C-478 AND AASHTO M-199
<br />HAUNCHING
<br />4" MIN BEDDING
<br />IF WATER OR SOFT GROUND IS PRESEN
<br />9" MIN PLACE COARSE BEDDING MATERIAL IN
<br />GEOTEXTILE WRAP WITH 12" MIN
<br />❑VERLAP @ FABRIC EDGES
<br />CZ PIPE & TRENCH
<br />NOTES:
<br />1. TRENCH WIDTH, PIPE BEDDING & BACKFILL SHALL CONFORM TO THE
<br />APPLICABLE REOUIREMENTS AND PROVISIONS OF SECTION
<br />15.02205 OF THESE SPECIFICATIONS.
<br />2. THESE AREM[N[MUM REQUIREMENTS- IF OTHER JURISDICTIONAL
<br />AGENCY REQUIREMENTS EXCEED THOSE SHOWN, THE GREATER
<br />REQUIREMENTS SHALL BE MET.
<br />3. 1007 AE REQUIRED FOR SIDEWALK OR DRIVEWAY.
<br />COMMERCIAL TANK
<br />EXCAVATION AND SITE PREPARATION
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<br />PLAN VIEW
<br />(COVERS & RISERS REMOVED)
<br />FINISHED
<br />ASE
<br />OTES
<br />ND 4)
<br />EXCAVATION
<br />(NOTES 1 AND 2)
<br />1 BASE,...,...,...,...,
<br />SIDE ELEVATION END ELEVATION
<br />NOTES: SECTION SECTION
<br />1. AREA MUST BE PREPARED AND CLEARED TO 2 FEET MINIMUM SURROUNDING ENTIRE TANK.
<br />2. THE EXCAVATION'S SLOPE, BENCHING OR SHORING SHALL COMPLY WITH THE REQUIREMENTS OF
<br />OSHA 29 CFR 1926 SUBPART P. JENSEN PRECAST WILL NOT VIOLATE THIS OSHA STANDARD IN THE
<br />COURSE OF SETTING AND SEALING THE TANK.
<br />3. BASE MUST BE LEVEL AND EVEN IN ALL DIRECTIONS.
<br />4. THE EXCAVATION SHALL BE BEDDED WITH SUITABLE GRANULAR MATERIAL AND SHALL BE
<br />COMPACTED TO 90% OF IT'S MAXIMUM DRY DENSITY OR TO THE REQUIREMENTS OF THE PROJECT
<br />GEOTECHNICAL ENGINEER.
<br />DRAWING NOT TO SCALE ���Jensen Precost reserves the right to moke chonges to product designand or dimensions without notice. Please contact Jensen Precast whenever/n r f r nfirm tin r vi n r t i n.ecesso o co 0 0 0 od ce o oduc des JEf
<br />RECAST
<br />12/31/2009 Y P 9
<br />COMMERCIAL TANK SITE PREP_A.DWG
<br />02009
<br />TRENCH STRUCTURAL DETAIL 2
<br />TRENCH SECTION IN UNPAVED AREAS
<br />(OFF ROAD EASEMENT OR FUTURE STREETS)
<br />TRENCH WIDTH
<br />{SEE NOTE 11
<br />BENCHED OR
<br />SLOPED TRENCH \
<br />PER
<br />REQUIREMENTS
<br />WARNING TAPE
<br />PER REQUIREMENTS OF
<br />SECTION 15,02205.
<br />HZ PIPE & TRENCH
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<br />RELATIVE ATIVE
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<br />SHADING LL PIPE
<br />< ZONE
<br />90%
<br />RELATIVE
<br />w COMPACTION
<br />HAUNCHING }
<br />BEDDING
<br />IF WATER OR SOFT GROUND
<br />15 PRESENT, PLACE COARSE
<br />BEDDING MATERIAL [N
<br />GEOTEXTILE WRAP WITH 12"
<br />MIN OVERLAP @ FABRIC EDGES
<br />NaTFS-
<br />1. TRENCH WIDTH. PIPE BEDDING & BACKFILL SHALL CONFORM TO
<br />THE APPLICABLE REQUIREMENTS AND PROVISIONS OF SECTION
<br />15.02205 OF THESE SPECIFICATIONS.
<br />2. THESE ARE MINIMUM REQUIREMENTS. IF OTHER JURISDICTIONAL
<br />AGENCY REQUIREMENTS EXCEED THOSE SHOWN, THE GREATER
<br />REQUIREMENTS SHALL BE MET.
<br />GREASE INTERCEPTOR INSTALLATION DETAIL AND SPECIFICATION
<br />SCALE: NTS
<br />STANDARD TRUNK SEWER TRENCH DETAILS
<br />FOR 12" AND LARGER PIPE
<br />EXISTING GROUND OR
<br />PAVEMENT SUB -GRADE
<br />EXISTING GROUND OR
<br />PAVEMENT SUE -GRADE
<br />TRENCH WIDTH TRENCH WIDTH
<br />BACKFILL SEE BACKFILL SEE
<br />DWG -14 a 15 DWc-14 & 15
<br />r+ TYPE [
<br />-TYPE
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<br />.D. IF WATER OR SOFTS j ''
<br />91. GROUND IS PRESENT, �� 9`
<br />PLACE COARSE BEDDING MIN.
<br />MATERIAL IN
<br />GEOTEXTILE WRAP
<br />WITH 12" MIN. OVERLAP
<br />@ FABRIC EDGES.
<br />FOR R.C. AND STEEL PIPE FOR R.C. PIPE
<br />INSTALLATIONS INSTALLATIONS
<br />UP TO 42" 48" AND LARGER
<br />(N.T.S.) (N.T.S.)
<br />NOTES: 1. PIPE BEDDING AND BACKFILL SHALL CONFORM TO THE REQUIREMENTS OF SECTION 15.02205.
<br />2. WARNING TAPE REQUIRED AT TOP OF THE PIPE ZONE.
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<br />ADR: 3119 Central Parkway,
<br />Dublin CA. 94568
<br />TEL: 510-788-6029
<br />CEL: 510-468-0613
<br />FAX: 510-788-6039
<br />Revisions Date
<br />PROGRESS REVIEW 10-01-2018
<br />PERMIT SET 10-29-2018
<br />Preliminary Set
<br />Design Review Set
<br />Plan Check Set X
<br />Plan Check Resubmit
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<br />g"MIN
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<br />GROUND Is PRESENT,
<br />FOR
<br />PLACE COARSE BEDDING
<br />BELL ENDS
<br />MATERIAL IN
<br />GEOTEXTILE WRAP
<br />WITH 12" MIN. OVERLAP
<br />@ FABRIC EDGES.
<br />FOR D.I. PIPE
<br />FOR ALL V.C.,
<br />P.V.C.
<br />INSTALLATIONS ONLY
<br />PIPE INSTALLATIONS
<br />(N.T.S.)
<br />(N.T.S.)
<br />EXISTING GROUND OR
<br />PAVEMENT SUE -GRADE
<br />TRENCH WIDTH TRENCH WIDTH
<br />BACKFILL SEE BACKFILL SEE
<br />DWG -14 a 15 DWc-14 & 15
<br />r+ TYPE [
<br />-TYPE
<br />!
<br />O 1/3 1). D.
<br />.D. IF WATER OR SOFTS j ''
<br />91. GROUND IS PRESENT, �� 9`
<br />PLACE COARSE BEDDING MIN.
<br />MATERIAL IN
<br />GEOTEXTILE WRAP
<br />WITH 12" MIN. OVERLAP
<br />@ FABRIC EDGES.
<br />FOR R.C. AND STEEL PIPE FOR R.C. PIPE
<br />INSTALLATIONS INSTALLATIONS
<br />UP TO 42" 48" AND LARGER
<br />(N.T.S.) (N.T.S.)
<br />NOTES: 1. PIPE BEDDING AND BACKFILL SHALL CONFORM TO THE REQUIREMENTS OF SECTION 15.02205.
<br />2. WARNING TAPE REQUIRED AT TOP OF THE PIPE ZONE.
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<br />ADR: 3119 Central Parkway,
<br />Dublin CA. 94568
<br />TEL: 510-788-6029
<br />CEL: 510-468-0613
<br />FAX: 510-788-6039
<br />Revisions Date
<br />PROGRESS REVIEW 10-01-2018
<br />PERMIT SET 10-29-2018
<br />Preliminary Set
<br />Design Review Set
<br />Plan Check Set X
<br />Plan Check Resubmit
<br />Construction Set
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<br />Sheet
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<br />DETAILS
<br />
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