Hollister City Council
February 4, 2025

WG 1011-0003-41 PAINTING AND COATING October 2024
City of Hollister IWTP/Bridge Road
Stormwater Improvements Page 09 90 00 -9 REV-A

4. Prior to application of finish coats, clean shop-primed surfaces free of dirt, oil, and grease and apply mist coat of specified primer, 1-mil dry film thickness.

5. After welding, prepare and prime holdback areas as required for specified paint system. Apply primer in accordance with manufacturer’s instructions.

D. Manufacturer Applied Paint Systems:

1. Repair abraded areas on factory finished items in accordance with equipment manufacturer’s directions.

2. Carefully blend repaired areas into original finish.

E. Film Thickness and Coverage:

1. Number of Coats:
a. Minimum required, irrespective of coating thickness. b. Additional coats may be required to obtain minimum required paint thickness, depending on method of application, differences in manufacturers’ products, and atmospheric conditions.

2. Application Thickness:
a. Do not exceed coating manufacturer’s recommendations. b. Use wet film thickness gauge to measure proper coating thickness during application.

F. Film Thickness Measurement and Electrical Inspection of Coated Surface:

1. Perform with properly calibrated instruments.

2. Recoat and repair as necessary for compliance with Specifications.

3. Coats will be subject to inspection by Engineer and coating manufacturer’s representative.

4. Visually inspect concrete, nonferrous metal, plastic, and wood surfaces to ensure proper and complete coverage has been attained.

5. Give particular attention to edges, angles, flanges, and other similar areas, where insufficient film thickness are likely to be present, and ensure proper millage in these areas.

6. Apply additional coats as required to complete hiding of underlying coats.

Hiding shall be so complete that additional coats would not increase hiding.

G. Galvanized Metal, Copper, and Nonferrous Metal Alloys:

1. Concealed galvanized, copper, and nonferrous metal alloy surfaces (behind building panels or walls) do not require painting, unless specifically indicated herein.

2. Prepare surface and apply primer in accordance with System No. 10 specification.

WG 1011-0003-41 PAINTING AND COATING October 2024
City of Hollister IWTP/Bridge Road
Stormwater Improvements Page 09 90 00 -10 REV-A

3. Apply intermediate and finish coats of the coating system appropriate for the exposure.

H. Protective Coatings Systems

1. System No. 5 Exposed Metal—Mildly Corrosive:

Surface Prep. Paint Material Min. Coats, Cover
SP 10, Near-White
Metal Blast Cleaning
Epoxy Primer 1 coat, 2.5 MDFT
Polyurethane Enamel 1 coat, 3 MDFT

2. System No. 25 Exposed FRP, PVC:

Surface Prep. Paint Material Min. Coats, Cover
In accordance with
Paragraph Plastic and
FRP Surface
Preparation
Acrylic Latex
Semigloss, Gloss, Flat
2 coats, 320 SFPGPC

3.07 Field Quality Control
A. Testing Equipment:

1. Provide magnetic type dry film thickness gauge, to test coating thickness specified in mils, as manufactured by Nordson Corp., Anaheim, CA; Mikrotest, or equal.

2. Provide electrical holiday detector, low voltage, wet sponge type, to test completed coating systems, 20 mils or less MDFT, for holidays and discontinuities as manufactured by Tinker and Rasor, San Gabriel, CA, Model M-1, or equal.

3. Provide high voltage holiday detector for coatings in excess of 20 mils MDFT. Unit as recommended by coating manufacturer.

B. Testing:

1. Thickness and Continuity Testing:
a. Measure coating thickness specified in mils with magnetic type dry film thickness gauge in accordance with SSPC PA 2.
b. Check each coat for correct millage. Do not make measurement within 8 hours, minimum, after application of coating.

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Stormwater Improvements Page 09 90 00 -11 REV-A

c. Test finish coat, 20 mils thick or less, except zinc primer, galvanizing, and elastomeric coatings, for holidays and discontinuities with electrical holiday detector, low voltage, wet sponge type in accordance with NACE RP0188.
d. Holiday detect coatings in excess of 20 mils MDFT with high voltage units recommended by coating manufacturer, and in accordance with NACE RP0188.
e. After repaired and recoated areas have dried sufficiently, retest each repaired area. Final test may also be conducted by Engineer.

C. Unsatisfactory Application:

1. Clean and top coat surfaces found to have improper finish color or insufficient film thickness.

2. Evidence of runs, bridges, shiners, laps, or other imperfections shall be cause for rejection.

3. Repair defects in coating system per written recommendations of coating manufacturer.

4. Leave staging up until Engineer has inspected surface or coating.

Replace staging removed prior to approval by Engineer.

D. Damaged Coatings, Pinholes, and Holidays:

1. Feather edges and repair in accordance with recommendations of paint manufacturer.

2. Hand or power sand visible areas of chipped, peeled, or abraded paint, and feather edges. Follow with primer and finish coat in accordance with Specifications. Depending on extent of repair and appearance, finish sanding and topcoat may be required.

3. Repair fusion bonded coatings as recommended by original applicator.

4. Apply finish coats, including touchup and damage-repair coats, in a manner, which will present uniform texture and color-matched appearance.

3.08 Manufacturer’s Services

1. Not required

3.09 Cleanup
A. Place cloths and waste that might constitute fire hazard in closed metal containers or destroy at end of each day.

B. Upon completion of work, remove staging, scaffolding, and containers from Site or destroy in legal manner.

WG 1011-0003-41 PAINTING AND COATING October 2024
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Stormwater Improvements Page 09 90 00 -12 REV-A

C. Completely remove paint spots, oil, or stains from adjacent surfaces and floors and leave entire job clean.

3.010 Application Schedule
A. Surfaces Not Requiring Painting:

1. Unless otherwise stated herein or shown, the following areas or items will not require painting:
a. Concrete and masonry surfaces.
b. Nonferrous and corrosion-resistant ferrous alloys such as copper, bronze, Monel, aluminum, chromium plate, atmospherically exposed weathering steel, and stainless steel, except where:
1) Required for electrical insulation between dissimilar metals.
2) Color coding of equipment and piping is required.
c. Prefinished electrical and architectural items such as motor control centers, switchboards, switchgear, panelboards, transformers, disconnect switches, cabinets, , color coding of equipment is required.
d. Non-submerged electrical conduits attached to unpainted concrete surfaces.
e. FRP Grating
f. Manhole lids
B. Painting Systems
C.

Equipment System Number
Bollards 5
Generator Enclosure Exterior Factory Coating
Handrails/Stair rails Galvanized – No painting required Pipe Supports (non SST) 5
Exposed Process Piping 25

3.011 Supplements
A. The supplements listed in the following subsections are a part of this Specification:

1. Paint System Data Sheet (PSDS)

2. Product Data Sheet (PDS).

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Stormwater Improvements Page 09 90 00 -13 REV-A

PAINT SYSTEM DATA SHEET
Complete this PSDS for each coating system, include all components of the system (surface preparation, primer, intermediate coats, and finish coats). Include all components of a given coating system on a single PSDS.

Paint System Number (from Spec.):

Paint System Title (from Spec.):

Coating Supplier:

Representative:

Surface Preparation:

Paint Material
(Generic)
Product Name/Number
(Proprietary) Min. Coats, Coverage

PAINT PRODUCT DATA SHEET
Complete and attach manufacturer’s Technical Data Sheet to this PDS for each product submitted. Provide manufacturer’s recommendations for the following parameters at temperature (F)/relative humidity:

Temperature/RH 50/50 70/30 90/25
Induction Time
Pot Life
Shelf Life
Drying Time
Curing Time
Min. Recoat Time

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Stormwater Improvements Page 09 90 00 -14 REV-A

Temperature/RH 50/50 70/30 90/25
Max. Recoat Time
Provide manufacturer’s recommendations for the following:

Mixing Ratio:

Maximum Permissible Thinning:

Ambient Temperature Limitations: min.: max.:

Surface Temperature Limitations: min.: max.:

Surface Profile Requirements: min.: max.:

Attach additional sheets detailing manufacturer’s recommended storage requirements and holiday testing procedures.

END OF SECTION

WG 1011-0003-41 SIGNAGE October 2024
City of Hollister IWTP/Bridge Rd
Stormwater Improvements Page 10 14 00-1 REV-A
SECTION 10 14 00

SIGNAGE
PART 1 GENERAL

1.01 SECTION INCLUDES
A. Informational and accident prevention signs.

B. This Section includes a standard listing of signage. Provide signs only where listed on the Sign Schedule 2.03.A.

1.02 DESIGN REQUIREMENTS
A. Regulatory Compliance

1. Accident Prevention Signs: Conform to design required by OSHA Section 1910.145 of Subpart J, Part 1910, Chapter XVII, Title 29 of the Code of Federal Regulations.

2. Exit Signs: Conform with Section 1910.37(g) of the OSHA Safety and Health Standard for General Industry, Article 10, Section 10.113 of the Uniform Fire Code, and where applicable with local fire regulations.

3. State Water Board grant funding signage shall conform with Stormwater Grant Agreement No. D2112167 Paragraph A.6.

B. Size Requirements

1. Sign sizes shall be as follows:
a. Size A: 14” x 20”
b. Size B: 10” x 14”
c. Size C: 7” x 10”
d. Size D: 24” x 24”
e. Size E: 36” x 36”
f. Size F: 48” x 96”
C. Color Requirements

1. Danger Signs:
a. Background: White.
b. Heading: White lettering in a red oval with a white border around the oval. Position oval in a black rectangular field in the upper portion of the sign.
c. Message: Black lettering.

2. Warning Signs:
a. Background: Orange.
b. Heading: Black lettering in an orange diamond with black border forming the diamond. Position orange diamond in the upper portion of the sign. c. Message: Black lettering.

3. Grant Funding Informational Sign:
a. Background: White
b. Heading: Color Logo as shown in section 1.03
c. Message: Black lettering

WG 1011-0003-41 SIGNAGE October 2024
City of Hollister IWTP/Bridge Rd
Stormwater Improvements Page 10 14 00-2 REV-A

1.03 SIGN TYPES
A. Sign Types and Messages

Type Message

DANGER SIGNS
I DANGER—HIGH VOLTAGE
II DANGER—480 VOLTS
III DANGER—CONFINED SPACE ENTRY
IV DANGER—CONFINED SPACE—HAZARDOUS ATMOSPHERE

WARNING SIGNS
V WARNING—AUTOMATIC EQUIPMENT MAY START AT ANY TIME

INFORMATIONAL SIGNS
VI

Funding for this project has been provided in full or in part under the Proposition 1 – the Water Quality, Supply, and Infrastructure Improvement Act of 2014 and Proposition 13 though an agreement with the State Water Resources Control Board

1.04 SUBMITTALS
A. Comply with City Special Provision Section 01310.

B. Samples: Submit 1 mock-up set, for each typical of sign type. The mock-up samples will be retained by the CM, other returned to Contractor.

C. Color samples of each color, 150 mm x 150 mm (6”x 6”). Show anticipated range of color and texture.

D. Sample of typeface, arrow, and symbols in a typical full size layout.

E. Manufacturer’s Literature: Manufacturer’s printed specifications, anchorage details, installation and maintenance instructions.

WG 1011-0003-41 SIGNAGE October 2024
City of Hollister IWTP/Bridge Rd
Stormwater Improvements Page 10 14 00-3 REV-A
PART 2 PRODUCTS

2.01 GENERAL
A. Sign Lettering: Single stroke and contrasting in color with the background.

B. Use standard and commonly accepted international symbols on signs with messages that include such symbols.

C. Chain Mounted Signs: Provide signs with lettering on both sides.

2.02 MATERIALS
A. Grant funding signs shall be made of ¾-inch thick exterior grade plywood or other material approved by the State Water Resources Control Board.

B. Other signs shall be 0.100” thick fiberglass with embedded fade-proof legends.

2.03 SIGN SCHEDULE
A. Provide signs in accordance with the following schedule:

Location Size Type Mount
Automatic Equipment B V Generator and
Stormwater Pump Station
Stormwater Control Structures B III Access Hatches
Wastewater Control Structure B IV Access Hatches
Generator & Pump Control Panels B I & II Control Panel
Bridge Road Parking Lot Entrance F VI Sign Post
IWTP Entrance at South Street F VI Sign Post
PART 3 EXECUTION

3.01 INSTALLATION
A. Mount signs in locations as shown in drawings.

B. Mount signs using round head stainless steel bolts or screws.

C. Securely mount signs level, plumb and true to plane positions.

D. Sign post to be provided and installed by contractor

END OF SECTION

WG 1011-0003-41 EQUIPMENT October 2024
City of Hollister IWTP/Bridge Rd
Stormwater Improvements Page 11 00 00-1 REV-A
SECTION 11 00 00

EQUIPMENT
PART 1 GENERAL

1.01 SECTION INCLUDES
A. General requirements applicable to mechanical equipment and systems.

B. Equipment mounting requirements, including fabricated steel equipment bases, concrete equipment pads, supports, anchorage, and accessories.

1.02 GENERAL REQUIREMENTS
A. Ensure mechanical equipment meets the requirements of this Section in addition to the specific requirements of the individual equipment specification Sections.

B. Equipment shall be of new construction and comply with the following requirements:

1. Equipment shall be manufacturer’s standard product and only be modified as necessary to comply with the Drawings and individual equipment specification Sections.

2. Designed for the service intended.

3. Designed for all stresses that may occur during fabrication, transportation, erection, and during continuous or intermittent operations.

4. Adequately anchored, leveled, aligned, and ready for operation without binding or overloading of critical components or motors.

5. Installed with necessary appurtenances required for proper operation and installation in a neat and workmanlike manner.

6. Tested by factory trained service mechanics or engineers.

7. Produced by reputable manufacturers having adequate experience in the manufacture of these particular items.

8. For uniformity, only one manufacturer shall be accepted for each type of product.

1.03 UNIT RESPONSIBILITY
A. Where specified, equipment systems shall be assembled as a unit by a single manufacturer responsible for the entire unit.

1. Responsibility extends to selecting components of the system to assure compatibility, proper operation, and compliance with specified performance requirements.

2. Unit responsibility does not relieve Contractor of responsibility to Owner for performance of the Work.

1.04 QUALITY ASSURANCE
A. Arrangement

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Stormwater Improvements Page 11 00 00-2 REV-A

1. The arrangement of equipment shown on the Drawings is based upon information available at the time of design and is not intended to show exact dimensions peculiar to a specific manufacturer.

2. Some features of the illustrated equipment installation may require revision to meet actual equipment installation requirements.

3. Structural supports, foundations, connected piping, and valves shown may have to be altered to accommodate the equipment provided. Additional payment will not be made for such revisions and alterations.

4. Provide supports, anchorage, and equipment mounts that are sized and designed to resist the calculated forces and that are in accordance with the manufacturer’s recommendations, the current Uniform Building Code (UBC), and industry standards requirements.

B. Balancing

1. Fully assemble all rotating elements in motors and pumps before performing static and dynamic balance.

2. Where specified, submit balancing reports, demonstrating compliance with this requirement.

C. Equipment Mounting Design Requirements

1. Design equipment mounts and anchorages to resist the minimum lateral force required by the latest edition of the UBC, the manufacturer of the equipment, or a lateral seismic force of 60% of the operating weight of the equipment, whichever is greater.

D. Equipment and Material Samples

1. When required by the individual equipment specification Sections or requested by the Owner, the Supplier shall submit equipment or material samples for test or evaluation.

2. The samples shall be furnished with information as to their source and prepared in such quantities and sizes as may be required for proper examination and tests, with all freight and charges prepaid.

3. All samples shall be submitted before shipment of the equipment or material to the job site and in ample time to permit the making of proper tests, analyses, examinations, rejections, and resubmissions before incorporated into the Work.

1.05 SUBMITTALS
A. Comply with City Special Provisions Section 01300, Submittals.

B. General: Provide separate submittals for each equipment item or group of related equipment items.

C. Equipment Anchorage: Submit anchor bolt sizing calculations. Coordinate with related submittals required in Section 05 50 01, Anchor Bolts and Anchoring Devices.

1.06 OPERATION AND MAINTENANCE MANUALS
A. Furnish operation and maintenance manuals for each equipment system in accordance with City Special Provisions Section 01300, Submittals.

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PART 2 PRODUCTS

2.01 PIPING CONNECTIONS ON EQUIPMENT
A. Flanges on Equipment: Conform to dimensions and drilling specified in ANSI B16.1, Class 125 unless otherwise required by Division 33 pipe specifications or the Drawings.

B. Pipe Flanges: Conform to dimensions and drilling specified in AWWA C207, Class D, 125 lb flanges provided on connecting pipe.

C. Threaded Flanges: Flat faced with standard taper pipe thread conforming to ANSI B1.20.1.

D. Pipe Threads: Conform in dimension and limits of size to ANSI B1.1, coarse thread series, Class 2 fit.

E. Flange Assembly Bolts and Nuts

1. Heavy pattern, hexagonal head, carbon steel machine bolts with heavy pattern, hot pressed, hexagonal nuts conforming to ANSI B18.2.1 and B18.2.2.

2. Threads: Unified Screw Threads, Standard Coarse Thread Series, Class 2A and 2B, ANSI B1.1.

2.02 BEARINGS
A. Service: Unless otherwise specified, equipment bearings shall be oil or grease lubricated, ball or roller type, designed to withstand the stresses of the service specified.

B. Rating:

1. L-10 Rating Life: Minimum 50,000 hours unless otherwise specified.

Determine rating life using the maximum equipment operating speed.

2. Determine rating in accordance with the latest revisions of ABMA Methods of Evaluating Load Ratings of ball and Roller Bearings.

3. Where individual equipment Sections specify higher bearing life ratings, those requirements supersede the minimum bearing life specified above.

C. Grease Lubricated Bearings

1. Fit with easily accessible grease supply, flush, drain and relief fittings, except those bearing specified to be factory sealed and lubricated.

2. Extend non-accessible grease fittings to an easily accessible location using ¼- inch diameter stainless steel tubing as an extension tube.

3. Grease supply fittings: Standard hydraulic Alemite or Zerk type.

D. Oil Lubricated Bearings

1. Equip with either a pressure lubricating system or a separate oil reservoir type system.

2. Size all lubrication systems to safely absorb the hat energy normally generated in the bearing under a maximum ambient temperature of 60 degrees Celsius.

3. Equip with a filler pipe and an external level indicator gage.

E. Incorporate bearing housings with sufficient cooling to maintain surface temperature at 65 degrees Celsius or less for continuous operation at bearing rated load and a 50

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degrees Celsius ambient temperature, or install appropriate shielding on bearings that are accessible to touch.

F. Gear Reducers

1. Provide drivers with nominal input horsepower rating equal to or greater than the nameplate horsepower of the drive motor.

2. Provide gear drives manufactured in accordance with AGMA Class II service requirements.

2.03 SHAFT COUPLINGS
A. Type and Rating: Non-lubricated, designed for a minimum of 50,000 hours operating life.

B. Equipment with a driver greater than ½ horsepower and where the input shaft of a driven unit is directly connected to the output shaft of the driver, shall have its two shafts connected by a flexible coupling which can accommodate angular misalignment, parallel misalignment and end float, and which cushions shock loads and dampens torsional vibrations.

C. Provide couplings recommended by the coupling manufacturer for the specified applications, considering horsepower, speed of rotation, and type of service.

D. Install couplings in conformance to the manufacturer’s instructions.

2.04 GUARDS AND CAUTION SIGNS
A. Guards: Enclose exposed moving parts with guards that meet the requirements of federal and state OSHA requirements. Enclose drive shafts to at least 7 feet above floors or operating platforms.

B. Materials

1. Fabricate guards of 14 gauge steel and expanded metal screen to provide visual inspection of moving parts without removal of the guard.

2. Galvanize after fabrication and paint with the equipment.

3. Fasteners; Type 304 stainless steel.

C. Warning Signs: Provide warning signs near equipment with moving parts that operate automatically or by remote control. Provide warning signs with wording, size and colors specified in Section 10 14 00, Signage.

2.05 NAMEPLATES AND LIFTING EYES
A. Nameplates: Provide on each item of equipment with the specified equipment name or abbreviation and equipment number. Engrave or stamp on stainless steel tag, and fasten to the equipment in an accessible location with stainless steel screws or drive pins.

B. Lifting Eyes: Provide on all equipment weighing over 80 pounds.

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2.06 SPARE PARTS AND LUBRICANTS
A. Spare Parts: Provide for each item of mechanical, electrical, and instrumentation equipment a supply of spare parts and special tools required for the starting, testing, adjustments, and initial operation. Pack spare parts required by individual equipment specifications:

1. Pack spare parts with individual weights less than 50 pounds in a heavily constructed painted wood box with hinged cover and a locking clasp.

2. Provide a typed inventory of spare parts stapled to the underside of the cover.

3. Tag and wrap each part of the waterproof container. Spare bearings shall be encapsulated in an airtight plastic film.

B. Lubricants: Provide for each item of mechanical equipment of the type recommended by the equipment manufacturer a supply of the lubricant for startup, testing, and initial operation.

1. Provide a list showing the required lubricants for each item of mechanical equipment. List estimated quantity of lubricant needed for a full year’s operation, assuming the equipment will operate continuously.

2. Lubricants shall be products of the Owner’s current lubricant supplier.

3. Limit the various types of lubricants by consolidating them, with the equipment manufacturer’s approval, into the least number of different types.

2.07 ANCHOR BOLTS AND CONCRETE ANCHORS
A. Size anchor bolts and concrete anchors for equipment as specified herein and in Section 05 50 01, Anchor Bolts and Anchoring Devices.

2.08 FACTORY APPLIED COATINGS
A. Ship each item of equipment to the site of the work with a shop applied coating prepared in accordance with the requirements of Section 09 90 00, Painting and Coating, and compatible with the finish coatings.

B. Finish Painting of Motors: Factory-apply finish coats using manufacturer’s standard coating, unless otherwise specified in Section 09 90 00, Painting and Coating.

2.09 SPECIAL TOOLS AND ACCESSORIES
A. Furnish with each piece of equipment all tools, instruments, or accessories of a special nature that are required to assemble, disassemble, maintain, or repair any item of equipment.

1. Tag and mark each piece indicating their service and the piece of equipment for which their use is intended.

2. Include a list and description or pictorial representation of all special tools required for a ginvne piece of equipment for insertion into the equipment operation and maintenance manual.

2.010 FASTENERS AND DIELECTRIC ISOLATION
A. Fasteners for Aluminum: Stainless steel.

B. Isolate steel surfaces, other than stainless steel, from aluminum with stainless steel, neoprene, non-metallic washers or other acceptable material.

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C. Dissimilar Metals: Protect from galvanic corrosion by means of pressure tapes, coatings and isolators, dielectric insulating flange kits.

PART 3 EXECUTION

3.01 INSTALLATION
A. Install, align and test each item of equipment within the tolerances recommended by the equipment manufacturer.

B. When specified in individual Sections, install and test equipment under the direction of installation engineers who have been factory trained by the equipment manufacturer.

C. Perform all Work in accordance with manufacturer’s recommendations.

3.02 QUALITY CONTROL
A. Test equipment in accordance with corresponding Technical Sections, and Section 01 75 00, Starting and Adjusting.

B. Furnish written certification from the equipment manufacturers that each item has been installed, aligned, and tested correctly and that the instillation meets the manufacturer’s requirements for efficient, trouble-free operation.

C. Equipment manufacturer’s certification shall not be construed as relieving the Contractor of his overall responsibility for this portion of the Work.

END OF SECTION

1011-0003-41
City of Hollister IWTP/Bridge Rd
Stormwater Improvements
26 05 05 -1 Selective Demolition for Electrical
SECTION 26 05 05

SELECTIVE DEMOLITION FOR ELECTRICAL
PART 1 GENERAL

1.01 SECTION INCLUDES
A.Electrical demolition.

PART 2 PRODUCTS

2.01 MATERIALS AND EQUIPMENT
A.Materials and equipment for patching and extending work: As specified in individual sections.

PART 3 EXECUTION

3.01 EXAMINATION
A.Verify that abandoned wiring and equipment serve only abandoned facilities.

B.Demolition drawings are based on casual field observation and existing record documents.

C.Report discrepancies to Engineer before disturbing existing installation.

D.Beginning of demolition means installer accepts existing conditions.

3.02 PREPARATION
A.Disconnect electrical systems in walls,floors,and ceilings to be removed.

B.Coordinate utility service outages with utility company.

C.Provide temporary wiring and connections to maintain existing systems in service during construction. When work must be performed on energized equipment or circuits,use personnel experienced in such operations.

D.Existing Electrical Service: Maintain existing system in service until new system is complete and ready for service. Disable system only to make switchovers and connections. Minimize outage duration.

1.Obtain permission from Owner at least 24 hours before partially or completely disabling system.

2.Make temporary connections to maintain service in areas adjacent to work area.

E.Existing Wastewater Treatment System: Maintain existing system in service until new system is complete and ready for service. Disable system only to make switchovers and connections.

Minimize outage duration.

1.Obtain permission from Owner at least 24 hours before partially or completely disabling system.

3.03 DEMOLITION AND EXTENSION OF EXISTING ELECTRICAL WORK A.Remove,relocate,and extend existing installations to accommodate new construction.

B.Remove abandoned wiring to source of supply.

C.Remove exposed abandoned conduit,including abandoned conduit above accessible ceiling finishes. Cut conduit flush with walls and floors,and patch surfaces.

D.Disconnect abandoned outlets and remove devices. Remove abandoned outlets if conduit servicing them is abandoned and removed. Provide blank cover for abandoned outlets that are not removed.

E.Disconnect and remove abandoned panelboards and distribution equipment.

F.Disconnect and remove electrical devices and equipment serving utilization equipment that has been removed.

G.Repair adjacent construction and finishes damaged during demolition and extension work.

H.Maintain access to existing electrical installations that remain active. Modify installation or provide access panel as appropriate.

1011-0003-41
City of Hollister IWTP/Bridge Rd
Stormwater Improvements
26 05 05 -2 Selective Demolition for Electrical
I.Extend existing installations using materials and methods compatible with existing electrical installations,or as specified.

END OF SECTION

1011-0003-41
City of Hollister IWTP/Bridge Rd
Stormwater Improvements
26 05 19 -1 Low-Voltage Electrical Power
Conductors and Cables
SECTION 26 05 19

LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES
PART 1 GENERAL

1.01 SECTION INCLUDES
A.Single conductor building wire.

B.Variable-frequency drive cable.

C.Wiring connectors.

D.Electrical tape.

E.Heat shrink tubing.

F.Wire pulling lubricant.

G.Cable ties.

1.02 RELATED REQUIREMENTS
A.Section 26 05 26 -Grounding and Bonding for Electrical Systems: Additional requirements for grounding conductors and grounding connectors.

1.03 REFERENCE STANDARDS
A.ASTM B3 -Standard Specification for Soft or Annealed Copper Wire;2013.

B.ASTM B8 -Standard Specification for Concentric-Lay-Stranded Copper Conductors,Hard, Medium-Hard,or Soft;2011 (Reapproved 2017).

C.ASTM B33 -Standard Specification for Tin-Coated Soft or Annealed Copper Wire for Electrical Purposes;2010 (Reapproved 2014).

D.ASTM B787/B787M -Standard Specification for 19 Wire Combination Unilay-Stranded Copper Conductors for Subsequent Insulation;2004 (Reapproved 2014).

E.ASTM D3005 -Standard Specification for Low-Temperature Resistant Vinyl Chloride Plastic Pressure-Sensitive Electrical Insulating Tape;2017.

F.ASTM D4388 -Standard Specification for Nonmetallic Semi-Conducting and Electrically Insulating Rubber Tapes;2013.

G.NECA 1 -Standard for Good Workmanship in Electrical Construction;2015.

H.NEMA WC 70 -Power Cables Rated 2000 Volts or Less for the Distribution of Electrical Energy;2009.

I.NETA ATS -Acceptance Testing Specifications for Electrical Power Equipment and Systems; 2017.

J.NFPA 70 -National Electrical Code;Most Recent Edition Adopted by Authority Having Jurisdiction,Including All Applicable Amendments and Supplements.

K.NFPA 79 -Electrical Standard for Industrial Machinery;2018.

L.UL 44 -Thermoset-Insulated Wires and Cables;Current Edition,Including All Revisions.

M.UL 83 -Thermoplastic-Insulated Wires and Cables;Current Edition,Including All Revisions.

N.UL 486A-486B -Wire Connectors;Current Edition,Including All Revisions.

O.UL 486C -Splicing Wire Connectors;Current Edition,Including All Revisions.

P.UL 486D -Sealed Wire Connector Systems;Current Edition,Including All Revisions.

Q.UL 510 -Polyvinyl Chloride,Polyethylene,and Rubber Insulating Tape;Current Edition, Including All Revisions.

R.UL 2277 -Outline of Investigation for Flexible Motor Supply Cable and Wind Turbine Tray Cable;Current Edition,Including All Revisions.

1.04 ADMINISTRATIVE REQUIREMENTS
A.Coordination:

1011-0003-41
City of Hollister IWTP/Bridge Rd
Stormwater Improvements
26 05 19 -2 Low-Voltage Electrical Power
Conductors and Cables

1.Coordinate sizes of raceways,boxes,and equipment enclosures installed under other sections with the actual conductors to be installed,including adjustments for conductor sizes increased for voltage drop.

2.Coordinate the installation of direct burial cable with other trades to avoid conflicts with piping or other potential conflicts.

3.Coordinate with electrical equipment installed under other sections to provide terminations suitable for use with the conductors to be installed.

4.Notify Engineer of any conflicts with or deviations from Contract Documents. Obtain direction before proceeding with work.

1.05 SUBMITTALS
A.Product Data: Provide manufacturer's standard catalog pages and data sheets for conductors and cables,including detailed information on materials,construction,ratings,listings,and available sizes,configurations,and stranding.

B.Project Record Documents: Record actual installed circuiting arrangements.Record actual routing for underground circuits.

1.06 QUALITY ASSURANCE
A.Comply with requirements of NFPA 70.

1.07 DELIVERY,STORAGE,AND HANDLING
A.Receive,inspect,handle,and store conductors and cables in accordance with manufacturer's instructions.

PART 2 PRODUCTS

2.01 CONDUCTOR AND CABLE APPLICATIONS
A.Do not use conductors and cables for applications other than as permitted by NFPA 70 and product listing.

B.Provide single conductor building wire installed in suitable raceway unless otherwise indicated, permitted,or required.

1.Exceptions:
a.Use variable-frequency drive cable for connection between variable-frequency motor controllers and associated motors.

2.02 CONDUCTOR AND CABLE GENERAL REQUIREMENTS
A.Provide products that comply with requirements of NFPA 70.

B.Provide products listed,classified,and labeled as suitable for the purpose intended.

C.Unless specifically indicated to be excluded,provide all required conduit,boxes,wiring, connectors,etc.as required for a complete operating system.

D.Comply with NEMA WC 70.

E.Thermoplastic-Insulated Conductors and Cables: Listed and labeled as complying with UL 83.

F.Thermoset-Insulated Conductors and Cables: Listed and labeled as complying with UL 44.

G.Conductors for Grounding and Bonding: Also comply with Section 26 05 26.

H.Conductor Material:

1.Provide copper conductors only. Aluminum conductors are not acceptable for this project.

Conductor sizes indicated are based on copper.

2.Copper Conductors: Soft drawn annealed,98 percent conductivity,uncoated copper conductors complying with ASTM B3,ASTM B8,or ASTM B787/B787M unless otherwise indicated.

3.Tinned Copper Conductors: Comply with ASTM B33.

I.Conductor Color Coding:

1.Color code conductors as indicated unless otherwise required by the authority having jurisdiction. Maintain consistent color coding throughout project.

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Conductors and Cables

2.Color Coding Method: Integrally colored insulation.
a.Conductors size 4 AWG and larger may have black insulation color coded using vinyl color coding electrical tape.

3.Color Code:
a.480Y/277 V,3 Phase,4 Wire System:
1)Phase A: Brown.
2)Phase B: Orange.
3)Phase C: Yellow.
4)Neutral/Grounded: Gray.
b.208Y/120 V,3 Phase,4 Wire System:
1)Phase A: Black.
2)Phase B: Red.
3)Phase C: Blue.
4)Neutral/Grounded: White.
c.240/120 V High-Leg Delta,3 Phase,4 Wire System:
1)Phase A: Black.
2)Phase B (High-Leg): Orange.
3)Phase C: Blue.
4)Neutral/Grounded: White.
d.240/120 V,1 Phase,3 Wire System:
1)Phase A: Black.
2)Phase B: Red.
3)Neutral/Grounded: White.
e.Equipment Ground,All Systems: Green.

2.03 SINGLE CONDUCTOR BUILDING WIRE
A.Description: Single conductor insulated wire.

B.Conductor Stranding:

1.Feeders and Branch Circuits:
a.Size 10 AWG and Smaller: Solid.
b.Size 8 AWG and Larger: Stranded.

C.Insulation Voltage Rating: 600 V.

D.Insulation:

1.Copper Building Wire: Type THHN/THWN or THHN/THWN-2,except as indicated below.

2.04 VARIABLE-FREQUENCY DRIVE CABLE
A.Description: Flexible motor supply cable listed and labeled as complying with UL 2277 in accordance with NFPA 79;specifically designed for use with variable frequency drives and associated nonlinear power distortions.

B.Conductor Stranding: Stranded.

C.Insulation Voltage Rating: 2000 V.

D.Insulation: Use only thermoset insulation types;thermoplastic insulation types are not permitted.

E.Grounding: Full-size integral equipment grounding conductor or symmetrical arrangement of multiple conductors of equivalent size.

F.Provide metallic shielding.

G.Jacket: PVC or Chlorinated Polyethylene (CPE).

2.05 WIRING CONNECTORS
A.Description: Wiring connectors appropriate for the application,suitable for use with the conductors to be connected,and listed as complying with UL 486A-486B or UL 486C as applicable.

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B.Connectors for Grounding and Bonding: Comply with Section 26 05 26.

C.Wiring Connectors for Splices and Taps:

1.Copper Conductors Size 8 AWG and Smaller: Use twist-on insulated spring connectors, mechanical connectors,or compression connectors.

2.Copper Conductors Size 6 AWG and Larger: Use mechanical connectors or compression connectors.

D.Do not use insulation-piercing or insulation-displacement connectors designed for use with conductors without stripping insulation.

E.Do not use push-in wire connectors as a substitute for twist-on insulated spring connectors.

F.Twist-on Insulated Spring Connectors: Rated 600 V,221 degrees F (105 degrees C)for standard applications and 302 degrees F (150 degrees C)for high temperature applications; pre-filled with sealant and listed as complying with UL 486D for damp and wet locations.

G.Mechanical Connectors: Provide bolted type or set-screw type.

H.Compression Connectors: Provide circumferential type or hex type crimp configuration.

2.06 ACCESSORIES
A.Electrical Tape:

1.Vinyl Color Coding Electrical Tape: Integrally colored to match color code indicated;listed as complying with UL 510;minimum thickness of 7 mil (0.18 mm);resistant to abrasion, corrosion,and sunlight;suitable for continuous temperature environment up to 221 degrees F (105 degrees C).

2.Vinyl Insulating Electrical Tape: Complying with ASTM D3005 and listed as complying with UL 510;minimum thickness of 7 mil (0.18 mm);resistant to abrasion,corrosion,and sunlight;conformable for application down to 0 degrees F (-18 degrees C)and suitable for continuous temperature environment up to 221 degrees F (105 degrees C).

3.Rubber Splicing Electrical Tape: Ethylene Propylene Rubber (EPR)tape,complying with ASTM D4388;minimum thickness of 30 mil (0.76 mm);suitable for continuous temperature environment up to 194 degrees F (90 degrees C)and short-term 266 degrees F (130 degrees C)overload service.

4.Moisture Sealing Electrical Tape: Insulating mastic compound laminated to flexible,all- weather vinyl backing;minimum thickness of 90 mil (2.3 mm).

B.Heat Shrink Tubing: Heavy-wall,split-resistant,with factory-applied adhesive;rated 600 V; suitable for direct burial applications;listed as complying with UL 486D.

C.Wire Pulling Lubricant: Listed;suitable for use with the conductors or cables to be installed and suitable for use at the installation temperature.

D.Cable Ties: Material and tensile strength rating suitable for application.

PART 3 EXECUTION

3.01 EXAMINATION
A.Verify that interior of building has been protected from weather.

B.Verify that work likely to damage wire and cable has been completed.

C.Verify that raceways,boxes,and equipment enclosures are installed and are properly sized to accommodate conductors and cables in accordance with NFPA 70.

D.Verify that field measurements are as indicated.

E.Verify that conditions are satisfactory for installation prior to starting work.

3.02 PREPARATION
A.Clean raceways thoroughly to remove foreign materials before installing conductors and cables.

3.03 INSTALLATION
A.Circuiting Requirements:

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Conductors and Cables

1.Unless dimensioned,circuit routing indicated is diagrammatic.

2.When circuit destination is indicated without specific routing,determine exact routing required.

3.Maintain separation of Class 1,Class 2,and Class 3 remote-control,signaling,and power- limited circuits in accordance with NFPA 70.

B.Install products in accordance with manufacturer's instructions.

C.Perform work in accordance with NECA 1 (general workmanship).

D.Installation in Raceway:

1.Tape ends of conductors and cables to prevent infiltration of moisture and other contaminants.

2.Pull all conductors and cables together into raceway at same time.

3.Do not damage conductors and cables or exceed manufacturer's recommended maximum pulling tension and sidewall pressure.

4.Use suitable wire pulling lubricant where necessary,except when lubricant is not recommended by the manufacturer.

E.Paralleled Conductors: Install conductors of the same length and terminate in the same manner.

F.Secure and support conductors and cables in accordance with NFPA 70 using suitable supports and methods approved by the authority having jurisdiction. Provide independent support from building structure. Do not provide support from raceways,piping,ductwork,or other systems.

G.Terminate cables using suitable fittings.

H.Variable-Frequency Drive Cable: Terminate shielding at both variable-frequency motor controller and associated motor using glands or termination kits recommended by manufacturer.

I.Neatly train and bundle conductors inside boxes,wireways,panelboards and other equipment enclosures.

J.Make wiring connections using specified wiring connectors.

1.Make splices and taps only in accessible boxes.Do not pull splices into raceways or make splices in conduit bodies or wiring gutters.

2.Remove appropriate amount of conductor insulation for making connections without cutting,nicking or damaging conductors.

3.Do not remove conductor strands to facilitate insertion into connector.

4.Clean contact surfaces on conductors and connectors to suitable remove corrosion, oxides,and other contaminates.Do not use wire brush on plated connector surfaces.

5.Mechanical Connectors: Secure connections according to manufacturer's recommended torque settings.

6.Compression Connectors: Secure connections using manufacturer's recommended tools and dies.

K.Insulate splices and taps that are made with uninsulated connectors using methods suitable for the application,with insulation and mechanical strength at least equivalent to unspliced conductors.

1.Dry Locations: Use insulating covers specifically designed for the connectors,electrical tape,or heat shrink tubing.
a.For taped connections,first apply adequate amount of rubber splicing electrical tape, followed by outer covering of vinyl insulating electrical tape.

2.Damp Locations: Use insulating covers specifically designed for the connectors,electrical tape,or heat shrink tubing.
a.For connections with insulating covers,apply outer covering of moisture sealing electrical tape.
b.For taped connections,follow same procedure as for dry locations but apply outer covering of moisture sealing electrical tape.

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3.Wet Locations: Use heat shrink tubing.

L.Insulate ends of spare conductors using vinyl insulating electrical tape.

M.Field-Applied Color Coding: Where vinyl color coding electrical tape is used in lieu of integrally colored insulation as permitted in Part 2 under "Color Coding",apply half overlapping turns of tape at each termination and at each location conductors are accessible.

N.Unless specifically indicated to be excluded,provide final connections to all equipment and devices,including those furnished by others,as required for a complete operating system.

3.04 FIELD QUALITY CONTROL
A.Inspect and test in accordance with NETA ATS,except Section 4.

B.Perform inspections and tests listed in NETA ATS,Section 7.3.2.The insulation resistance test is only required for conductors larger than #6.The resistance test for parallel conductors listed as optional is required.

1.Resistance testing is required for existing cables being spliced onto.Perform testing both prior to splicing and after splicing.

2.Disconnect surge protective devices (SPDs)prior to performing any high potential testing.

Replace SPDs damaged by performing high potential testing with SPDs connected.

C.Correct deficiencies and replace damaged or defective conductors and cables.

1.Existing cables that fail per NETA ATS recommended values shall be replaced as part of a change order or additional alternative to be paid at client's expense.

END OF SECTION

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26 05 26 -1 Grounding and Bonding for Electrical
Systems
SECTION 26 05 26

GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS
PART 1 GENERAL

1.01 SECTION INCLUDES
A.Grounding and bonding requirements.

B.Conductors for grounding and bonding.

C.Connectors for grounding and bonding.

D.Ground rod electrodes.

E.Ground access wells.

1.02 RELATED REQUIREMENTS
A.Section 26 05 19 -Low-Voltage Electrical Power Conductors and Cables: Additional requirements for conductors for grounding and bonding,including conductor color coding.

1.Includes oxide inhibiting compound.

B.Section 26 05 53 -Identification for Electrical Systems: Identification products and requirements.

1.03 REFERENCE STANDARDS
A.IEEE 81 -IEEE Guide for Measuring Earth Resistivity,Ground Impedance,and Earth Surface Potentials of a Grounding System;2012.

B.NECA 1 -Standard for Good Workmanship in Electrical Construction;2015.

C.NEMA GR 1 -Grounding Rod Electrodes and Grounding Rod Electrode Couplings;2007.

D.NETA ATS -Acceptance Testing Specifications for Electrical Power Equipment and Systems; 2017.

E.NFPA 70 -National Electrical Code;Most Recent Edition Adopted by Authority Having Jurisdiction,Including All Applicable Amendments and Supplements.

F.UL 467 -Grounding and Bonding Equipment;Current Edition,Including All Revisions.

1.04 ADMINISTRATIVE REQUIREMENTS
A.Coordination:

1.Verify exact locations of underground metal water service pipe entrances to building.

2.Coordinate the work with other trades to provide steel reinforcement complying with specified requirements for concrete-encased electrode.

3.Notify Engineer of any conflicts with or deviations from Contract Documents.Obtain direction before proceeding with work.

B.Sequencing:

1.Do not install ground rod electrodes until final backfill and compaction is complete.

1.05 SUBMITTALS
A.Product Data: Provide manufacturer's standard catalog pages and data sheets for grounding and bonding system components.

B.Field quality control test reports.

1.06 QUALITY ASSURANCE
A.Comply with requirements of NFPA 70.

PART 2 PRODUCTS

2.01 GROUNDING AND BONDING REQUIREMENTS
A.Existing Work: Where existing grounding and bonding system components are indicated to be reused,they may be reused only where they are free from corrosion,integrity and continuity are verified,and where acceptable to the authority having jurisdiction.

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26 05 26 -2 Grounding and Bonding for Electrical
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B.Do not use products for applications other than as permitted by NFPA 70 and product listing.

C.Unless specifically indicated to be excluded,provide all required components,conductors, connectors,conduit,boxes,fittings,supports,accessories,etc.as necessary for a complete grounding and bonding system.

D.Where conductor size is not indicated,size to comply with NFPA 70 but not less than applicable minimum size requirements specified.

E.Grounding System Resistance:

1.Achieve specified grounding system resistance under normally dry conditions unless otherwise approved by Engineer.Precipitation within the previous 48 hours does not constitute normally dry conditions.

2.Grounding Electrode System: Not greater than 25 ohms to ground,when tested according to IEEE 81 using "fall-of-potential"method.

3.Between Grounding Electrode System and Major Electrical Equipment Frames,System Neutral,and Derived Neutral Points: Not greater than 0.5 ohms,when tested using "point- to-point"methods.

F.Grounding Electrode System:

1.Provide connection to required and supplemental grounding electrodes indicated to form grounding electrode system.
a.Provide continuous grounding electrode conductors without splice or joint. b.Install grounding electrode conductors in raceway where exposed to physical damage.Bond grounding electrode conductor to metallic raceways at each end with bonding jumper.

2.Ground Ring:
a.Provide a ground ring encircling the building or structure consisting of bare copper conductor not less than 3/0 AWG in direct contact with earth,installed at a depth of not less than 30 inches (750 mm).

3.Ground Rod Electrode(s):
a.Provide single electrode unless otherwise indicated or required. b.Space electrodes not less than 10 feet (3.0 m)from each other and any other ground electrode.
c.Where location is not indicated,locate electrode(s)at least 5 feet (1.5 m)outside building perimeter foundation as near as possible to electrical service entrance; where possible,locate in softscape (uncovered)area.

4.Provide additional ground electrode(s)as required to achieve specified grounding electrode system resistance.

5.Ground Riser: Provide common grounding electrode conductor not less than 3/0 AWG for tap connections to multiple separately derived systems as permitted in NFPA 70.

G.Separately Derived System Grounding:

1.Separately derived systems include,but are not limited to:
a.Transformers (except autotransformers such as buck-boost transformers). b.Generators,when neutral is switched in the transfer switch.

2.Provide grounding electrode conductor to connect derived system grounded conductor to common grounding electrode conductor ground riser.Unless otherwise indicated,make connection at neutral (grounded)bus in source enclosure.

3.Provide bonding jumper to connect derived system grounded conductor to nearest metal building frame and nearest metal water piping in the area served by the derived system, where not already used as a grounding electrode for the derived system.Make connection at same location as grounding electrode conductor connection.

4.Where common grounding electrode conductor ground riser is used for tap connections to multiple separately derived systems,provide bonding jumper to connect the metal building frame and metal water piping in the area served by the derived system to the common grounding electrode conductor.

5.Outdoor Source: Where the source of the separately derived system is located outside the building or structure supplied,provide connection to grounding electrode at source in

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accordance with NFPA 70.

6.Provide system bonding jumper to connect system grounded conductor to equipment ground bus.Make connection at same location as grounding electrode conductor connection.Do not make any other connections between neutral (grounded)conductors and ground on load side of separately derived system disconnect.

7.Where the source and first disconnecting means are in separate enclosures,provide supply-side bonding jumper between source and first disconnecting means.

H.Bonding and Equipment Grounding:

1.Provide bonding for equipment grounding conductors,equipment ground busses,metallic equipment enclosures,metallic raceways and boxes,device grounding terminals,and other normally non-current-carrying conductive materials enclosing electrical conductors/equipment or likely to become energized as indicated and in accordance with NFPA 70.

2.Provide insulated equipment grounding conductor in each feeder and branch circuit raceway.Do not use raceways as sole equipment grounding conductor.

3.Where circuit conductor sizes are increased for voltage drop,increase size of equipment grounding conductor proportionally in accordance with NFPA 70.

4.Unless otherwise indicated,connect wiring device grounding terminal to branch circuit equipment grounding conductor and to outlet box with bonding jumper.

5.Terminate branch circuit equipment grounding conductors on solidly bonded equipment ground bus only.Do not terminate on neutral (grounded)or isolated/insulated ground bus.

6.Provide bonding jumper across expansion or expansion/deflection fittings provided to accommodate conduit movement.

2.02 GROUNDING AND BONDING COMPONENTS
A.General Requirements:

1.Provide products listed,classified,and labeled as suitable for the purpose intended.

2.Provide products listed and labeled as complying with UL 467 where applicable.

B.Conductors for Grounding and Bonding,in Addition to Requirements of Section 26 05 26:

1.Use insulated copper conductors unless otherwise indicated. a.Exceptions:
1)Use bare copper conductors where installed underground in direct contact with earth.
2)Use bare copper conductors where directly encased in concrete (not in raceway).

C.Connectors for Grounding and Bonding:

1.Description: Connectors appropriate for the application and suitable for the conductors and items to be connected;listed and labeled as complying with UL 467.

2.Unless otherwise indicated,use exothermic welded connections for underground, concealed and other inaccessible connections.
a.Exceptions:
1)Use mechanical connectors for connections to electrodes at ground access wells.

3.Unless otherwise indicated,use mechanical connectors or exothermic welded connections for accessible connections.
a.Exceptions:
1)Use exothermic welded connections for connections to metal building frame.

4.Manufacturers -Mechanical and Compression Connectors:
a.Burndy LLC;______: www.burndy.com .
b.Thomas &Betts Corporation;______: www.tnb.com .

5.Manufacturers -Exothermic Welded Connections:
a.Burndy LLC;______: www.burndy.com .
b.Cadweld,a brand of Erico International Corporation;__________: www.erico.com .

D.Ground Rod Electrodes:

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26 05 26 -4 Grounding and Bonding for Electrical
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1.Comply with NEMA GR 1.

2.Material: Copper-bonded (copper-clad)steel.

3.Size: 3/4 inch (19 mm)diameter by 10 feet (3.0 m)length,unless otherwise indicated.

4.Where rod lengths of greater than 10 feet (3.0 m)are indicated or otherwise required, sectionalized ground rods may be used.

5.Manufacturers:
a.Erico International Corporation;__________: www.erico.com .

E.Ground Access Wells:

1.Description: Open bottom round or rectangular well with access cover for testing and inspection;suitable for the expected load at the installed location.

2.Size: As required to provide adequate access for testing and inspection,but not less than minimum size requirements specified.
a.Round Wells: Not less than 8 inches (200 mm)in diameter. b.Rectangular Wells: Not less than 12 by 12 inches (300 by 300 mm).

3.Depth: As required to extend below frost line to prevent frost upheaval,but not less than 10 inches (250 mm).

4.Cover: Factory-identified by permanent means with word "GROUND".

PART 3 EXECUTION

3.01 EXAMINATION
A.Verify that work likely to damage grounding and bonding system components has been completed.

B.Verify that field measurements are as indicated.

C.Verify that conditions are satisfactory for installation prior to starting work.

3.02 INSTALLATION
A.Install products in accordance with manufacturer's instructions.

B.Perform work in accordance with NECA 1 (general workmanship).

C.Ground Rod Electrodes: Unless otherwise indicated,install ground rod electrodes vertically.

Where encountered rock prohibits vertical installation,install at 45 degree angle or bury horizontally in trench at least 30 inches (750 mm)deep in accordance with NFPA 70 or provide ground plates.

1.Outdoor Installations: Unless otherwise indicated,install with top of rod 6 inches (150 mm)below finished grade.

2.Indoor Installations: Unless otherwise indicated,install with 4 inches (100 mm)of top of rod exposed.

D.Make grounding and bonding connections using specified connectors.

1.Remove appropriate amount of conductor insulation for making connections without cutting,nicking or damaging conductors.Do not remove conductor strands to facilitate insertion into connector.

2.Remove nonconductive paint,enamel,or similar coating at threads,contact points,and contact surfaces.

3.Exothermic Welds: Make connections using molds and weld material suitable for the items to be connected in accordance with manufacturer's recommendations.

4.Mechanical Connectors: Secure connections according to manufacturer's recommended torque settings.

5.Compression Connectors: Secure connections using manufacturer's recommended tools and dies.

E.Identify grounding and bonding system components in accordance with Section 26 05 53.

3.03 FIELD QUALITY CONTROL
A.Inspect and test in accordance with NETA ATS except Section 4.

B.Perform inspections and tests listed in NETA ATS,Section 7.13.

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26 05 26 -5 Grounding and Bonding for Electrical
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C.Perform ground electrode resistance tests under normally dry conditions.Precipitation within the previous 48 hours does not constitute normally dry conditions.

D.Investigate and correct deficiencies where measured ground resistances do not comply with specified requirements.

E.Submit detailed reports indicating inspection and testing results and corrective actions taken.

END OF SECTION

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26 05 29 -1 Hangers and Supports for Electrical
Systems
SECTION 26 05 29

HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS
PART 1 GENERAL

1.01 SECTION INCLUDES
A.Support and attachment requirements and components for equipment,conduit,cable,boxes, and other electrical work.

1.02 RELATED REQUIREMENTS
A.Section 26 05 33.13 -Conduit for Electrical Systems: Additional support and attachment requirements for conduits.

1.03 REFERENCE STANDARDS
A.ASTM A123/A123M -Standard Specification for Zinc (Hot-Dip Galvanized)Coatings on Iron and Steel Products;2017.

B.ASTM A153/A153M -Standard Specification for Zinc Coating (Hot-Dip)on Iron and Steel Hardware;2016a.

C.ASTM B633 -Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel; 2015.

D.MFMA-4 -Metal Framing Standards Publication;2004.

E.NECA 1 -Standard for Good Workmanship in Electrical Construction;2015.

F.NFPA 70 -National Electrical Code;Most Recent Edition Adopted by Authority Having Jurisdiction,Including All Applicable Amendments and Supplements.

1.04 SUBMITTALS
A.Product Data: Provide manufacturer's standard catalog pages and data sheets for channel (strut)framing systems and post-installed concrete and masonry anchors.

PART 2 PRODUCTS

2.01 SUPPORT AND ATTACHMENT COMPONENTS
A.General Requirements:

1.Provide all required hangers,supports,anchors,fasteners,fittings,accessories,and hardware as necessary for the complete installation of electrical work.

2.Provide products listed,classified,and labeled as suitable for the purpose intended,where applicable.

3.Do not use products for applications other than as permitted by NFPA 70 and product listing.

4.Steel Components: Use corrosion resistant materials suitable for the environment where installed.
a.Outdoor and Damp or Wet Indoor Locations: Use galvanized steel or stainless steel unless otherwise indicated.
b.Zinc-Plated Steel: Electroplated in accordance with ASTM B633. c.Galvanized Steel: Hot-dip galvanized after fabrication in accordance with ASTM A123/A123M or ASTM A153/A153M.

B.Conduit and Cable Supports: Straps,clamps,etc.suitable for the conduit or cable to be supported.

1.Conduit Straps: One-hole or two-hole type;malleable iron.

2.Conduit Clamps: Bolted type unless otherwise indicated.

C.Outlet Box Supports: Hangers,brackets,etc.suitable for the boxes to be supported.

D.Metal Channel (Strut)Framing Systems: Factory-fabricated continuous-slot metal channel (strut)and associated fittings,accessories,and hardware required for field-assembly of supports.

1.Comply with MFMA-4.

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2.Channel Material:
a.Outdoor and Damp or Wet Indoor Locations: Use galvanized steel.

3.Minimum Channel Thickness: Steel sheet,12 gage,0.1046 inch (2.66 mm).

4.Minimum Channel Dimensions: 1-5/8 inch (41 mm)width by 13/16 inch (21 mm)height.

E.Anchors and Fasteners:

1.Unless otherwise indicated and where not otherwise restricted,use the anchor and fastener types indicated for the specified applications.

2.Concrete: Use preset concrete inserts,expansion anchors,screw anchors,or anchors approved/allowed by structural plans and specifications..

3.Preset Concrete Inserts: Continuous metal channel (strut)and spot inserts specifically designed to be cast in concrete ceilings,walls,and floors. a.Comply with MFMA-4.
b.Channel Material: Use galvanized steel.
c.Manufacturer: Same as manufacturer of metal channel (strut)framing system.

4.Post-Installed Concrete and Masonry Anchors: Evaluated and recognized by ICC Evaluation Service,LLC (ICC-ES)for compliance with applicable building code.

PART 3 EXECUTION

3.01 EXAMINATION
A.Verify that field measurements are as indicated.

B.Verify that mounting surfaces are ready to receive support and attachment components.

C.Verify that conditions are satisfactory for installation prior to starting work.

3.02 INSTALLATION
A.Install products in accordance with manufacturer's instructions.

B.Perform work in accordance with NECA 1 (general workmanship).

C.Install anchors and fasteners in accordance with ICC Evaluation Services,LLC (ICC-ES) evaluation report conditions of use where applicable.

D.Provide independent support from building structure.Do not provide support from piping, ductwork,or other systems.

E.Unless specifically indicated or approved by Engineer,do not provide support from suspended ceiling support system or ceiling grid.

F.Unless specifically indicated or approved by Engineer,do not provide support from roof deck.

G.Do not penetrate or otherwise notch or cut structural members without approval of Structural Engineer.

H.Equipment Support and Attachment:

1.Use metal fabricated supports or supports assembled from metal channel (strut)to support equipment as required.

2.Use metal channel (strut)secured to studs to support equipment surface-mounted on hollow stud walls when wall strength is not sufficient to resist pull-out.

3.Use metal channel (strut)to support surface-mounted equipment in wet or damp locations to provide space between equipment and mounting surface.

4.Securely fasten floor-mounted equipment.Do not install equipment such that it relies on its own weight for support.

I.Conduit Support and Attachment: Also comply with Section 26 05 33.13.

J.Preset Concrete Inserts: Use manufacturer provided closure strips to inhibit concrete seepage during concrete pour.

K.Secure fasteners according to manufacturer's recommended torque settings.

L.Remove temporary supports.

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3.03 FIELD QUALITY CONTROL
A.Inspect support and attachment components for damage and defects.

B.Repair cuts and abrasions in galvanized finishes using zinc-rich paint recommended by manufacturer.Replace components that exhibit signs of corrosion.

C.Correct deficiencies and replace damaged or defective support and attachment components.

END OF SECTION

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Stormwater Improvements
26 05 33.13 -1 Conduit for Electrical Systems
SECTION 26 05 33.13

CONDUIT FOR ELECTRICAL SYSTEMS
PART 1 GENERAL

1.01 SECTION INCLUDES
A.Galvanized steel rigid metal conduit (RMC).

B.PVC-coated galvanized steel rigid metal conduit (RMC).

C.Liquidtight flexible metal conduit (LFMC).

D.Electrical metallic tubing (EMT).

E.Rigid polyvinyl chloride (PVC)conduit.

F.Conduit fittings.

G.Accessories.

1.02 RELATED REQUIREMENTS
A.Section 26 05 19 -Low-Voltage Electrical Power Conductors and Cables.

B.Section 26 05 26 -Grounding and Bonding for Electrical Systems.

1.Includes additional requirements for fittings for grounding and bonding.

C.Section 26 05 29 -Hangers and Supports for Electrical Systems.

D.Section 26 05 33.16 -Boxes for Electrical Systems.

E.Section 26 05 53 -Identification for Electrical Systems: Identification products and requirements.

F.Section 26 21 00 -Low-Voltage Electrical Service Entrance: Additional requirements for electrical service conduits.

G.Section 31 23 16 -Excavation.

H.Section 31 23 23 -Fill: Bedding and backfilling.

1.03 REFERENCE STANDARDS
A.ANSI C80.1 -American National Standard for Electrical Rigid Steel Conduit (ERSC);2015.

B.ANSI C80.3 -American National Standard for Electrical Metallic Tubing --Steel (EMT-S);2015.

C.NECA 1 -Standard for Good Workmanship in Electrical Construction;2015.

D.NECA 101 -Standard for Installing Steel Conduits (Rigid,IMC,EMT);2013.

E.NECA 111 -Standard for Installing Nonmetallic Raceways (RNC,ENT,LFNC);2003.

F.NEMA FB 1 -Fittings,Cast Metal Boxes,and Conduit Bodies for Conduit,Electrical Metallic Tubing,and Cable;2014.

G.NEMA RN 1 -Polyvinyl-Chloride (PVC)Externally Coated Galvanized Rigid Steel Conduit and Intermediate Metal Conduit;2005 (Reaffirmed 2013).

H.NEMA TC 2 -Electrical Polyvinyl Chloride (PVC)Conduit;2013.

I.NEMA TC 3 -Polyvinyl Chloride (PVC)Fittings for Use with Rigid PVC Conduit and Tubing; 2016.

J.NFPA 70 -National Electrical Code;Most Recent Edition Adopted by Authority Having Jurisdiction,Including All Applicable Amendments and Supplements.

K.UL 6 -Electrical Rigid Metal Conduit-Steel;Current Edition,Including All Revisions.

L.UL 360 -Liquid-Tight Flexible Steel Conduit;Current Edition,Including All Revisions.

M.UL 514B -Conduit,Tubing,and Cable Fittings;Current Edition,Including All Revisions.

N.UL 651 -Schedule 40,80,Type EB and A Rigid PVC Conduit and Fittings;Current Edition, Including All Revisions.

O.UL 797 -Electrical Metallic Tubing-Steel;Current Edition,Including All Revisions.

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26 05 33.13 -2 Conduit for Electrical Systems
P.UL 1203 -Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified)Locations;Current Edition,Including All Revisions.

1.04 ADMINISTRATIVE REQUIREMENTS
A.Coordination:

1.Coordinate minimum sizes of conduits with the actual conductors to be installed,including adjustments for conductor sizes increased for voltage drop.

2.Coordinate the arrangement of conduits with structural members,ductwork,piping, equipment and other potential conflicts installed under other sections or by others.

3.Verify exact conduit termination locations required for boxes,enclosures,and equipment installed under other sections or by others.

4.Coordinate the work with other trades to provide roof penetrations that preserve the integrity of the roofing system and do not void the roof warranty.

5.Notify Engineer of any conflicts with or deviations from Contract Documents.Obtain direction before proceeding with work.

B.Sequencing:

1.Do not begin installation of conductors and cables until installation of conduit is complete between outlet,junction and splicing points.

1.05 SUBMITTALS
A.Product Data: Provide manufacturer's standard catalog pages and data sheets for conduits and fittings.

B.Project Record Documents: Record actual routing for conduits installed underground,conduits embedded within concrete slabs,and conduits 2 inch (53 mm)trade size and larger.

1.06 QUALITY ASSURANCE
A.Comply with requirements of NFPA 70.

1.07 DELIVERY,STORAGE,AND HANDLING
A.Receive,inspect,handle,and store conduit and fittings in accordance with manufacturer's instructions.

PART 2 PRODUCTS

2.01 CONDUIT APPLICATIONS
A.Do not use conduit and associated fittings for applications other than as permitted by NFPA 70 and product listing.

B.Unless otherwise indicated and where not otherwise restricted,use the conduit types indicated for the specified applications.Where more than one listed application applies,comply with the most restrictive requirements.Where conduit type for a particular application is not specified, use galvanized steel rigid metal conduit.

C.Underground:

1.Under Slab on Grade: Use galvanized steel rigid metal conduit,PVC-coated galvanized steel rigid metal conduit,or rigid PVC conduit.

2.Exterior,Direct-Buried: Use galvanized steel rigid metal conduit,PVC-coated galvanized steel rigid metal conduit,or rigid PVC conduit.

3.Exterior,Embedded Within Concrete: Use galvanized steel rigid metal conduit,PVC- coated galvanized steel rigid metal conduit,or rigid PVC conduit.

4.Where rigid polyvinyl (PVC)conduit is provided,transition to galvanized steel rigid metal conduit where emerging from underground.

5.Where rigid polyvinyl (PVC)conduit larger than 2 inch (53 mm)trade size is provided,use galvanized steel rigid metal conduit elbows for bends.

6.Where steel conduit is installed in direct contact with earth,use corrosion protection tape to provide supplementary corrosion protection or use PVC-coated galvanized steel rigid metal conduit.

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26 05 33.13 -3 Conduit for Electrical Systems

7.Where steel conduit emerges from concrete into soil,use corrosion protection tape to provide supplementary corrosion protection for a minimum of 4 inches (100 mm)on either side of where conduit emerges or use PVC-coated galvanized steel rigid metal conduit.

D.Exposed,Exterior: Use galvanized steel rigid metal conduit or PVC-coated galvanized steel rigid metal conduit.

E.Concealed,Exterior,Not Embedded in Concrete or in Contact With Earth: Use galvanized steel rigid metal conduit.

F.Hazardous (Classified)Locations: Use galvanized steel rigid metal conduit or PVC-coated galvanized steel rigid metal conduit.

G.Connections to Vibrating Equipment:

1.Damp,Wet,or Corrosive Locations: Use liquidtight flexible metal conduit.

2.Maximum Length: 6 feet (1.8 m)unless otherwise indicated.

3.Vibrating equipment includes,but is not limited to:
a.Transformers.
b.Motors.
c.Generators.

2.02 CONDUIT REQUIREMENTS
A.Existing Work: Where existing conduits are indicated to be reused,they may be reused only where they comply with specified requirements,are free from corrosion,and integrity is verified by pulling a mandrel through them.

B.Electrical Service Conduits: Also comply with Section 26 21 00.

C.Fittings for Grounding and Bonding: Also comply with Section 26 05 26.

D.Provide all conduit,fittings,supports,and accessories required for a complete raceway system.

E.Provide products listed,classified,and labeled as suitable for the purpose intended.

F.Minimum Conduit Size,Unless Otherwise Indicated:

1.Branch Circuits: 1/2 inch (16 mm)trade size.

2.Branch Circuit Homeruns: 3/4 inch (21 mm)trade size.

3.Control Circuits: 1/2 inch (16 mm)trade size.

4.Flexible Connections to Luminaires: 3/8 inch (12 mm)trade size.

5.Underground,Interior: 3/4 inch (21 mm)trade size.

6.Underground,Exterior: 1 inch (27 mm)trade size.

G.Where conduit size is not indicated,size to comply with NFPA 70 but not less than applicable minimum size requirements specified.

2.03 GALVANIZED STEEL RIGID METAL CONDUIT (RMC)
A.Description: NFPA 70,Type RMC galvanized steel rigid metal conduit complying with ANSI C80.1 and listed and labeled as complying with UL 6.

B.Fittings:

1.Non-Hazardous Locations: Use fittings complying with NEMA FB 1 and listed and labeled as complying with UL 514B.

2.Hazardous (Classified)Locations: Use fittings listed and labeled as complying with UL 1203 for the classification of the installed location.

3.Material: Use malleable iron or die cast zinc.

4.Connectors and Couplings: Use threaded type fittings only.Threadless set screw and compression (gland)type fittings are not permitted.

2.04 PVC-COATED GALVANIZED STEEL RIGID METAL CONDUIT (RMC) A.Description: NFPA 70,Type RMC galvanized steel rigid metal conduit with external polyvinyl chloride (PVC)coating complying with NEMA RN 1 and listed and labeled as complying with UL

6. B.Exterior Coating: Polyvinyl chloride (PVC),nominal thickness of 40 mil (1.02 mm).

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C.PVC-Coated Fittings:

1.Manufacturer: Same as manufacturer of PVC-coated conduit to be installed.

2.Non-Hazardous Locations: Use fittings listed and labeled as complying with UL 514B.

3.Hazardous (Classified)Locations: Use fittings listed and labeled as complying with UL 1203 for the classification of the installed location.

4.Material: Use steel or malleable iron.

5.Exterior Coating: Polyvinyl chloride (PVC),minimum thickness of 40 mil (1.02 mm).

D.PVC-Coated Supports: Furnish with exterior coating of polyvinyl chloride (PVC),minimum thickness of 15 mil (0.38 mm).

2.05 LIQUIDTIGHT FLEXIBLE METAL CONDUIT (LFMC)
A.Description: NFPA 70,Type LFMC polyvinyl chloride (PVC)jacketed steel flexible metal conduit listed and labeled as complying with UL 360.

B.Fittings:

1.Manufacturers:
a.O-Z/Gedney,a brand of Emerson Electric Co: www.emerson.com . b.Thomas &Betts Corporation: www.tnb.com .

2.Description: Fittings complying with NEMA FB 1 and listed and labeled as complying with UL 514B.

3.Material: Use malleable iron,aluminum,or die cast zinc.

2.06 ELECTRICAL METALLIC TUBING (EMT)
A.Description: NFPA 70,Type EMT steel electrical metallic tubing complying with ANSI C80.3 and listed and labeled as complying with UL 797.

B.Fittings:

1.Description: Fittings complying with NEMA FB 1 and listed and labeled as complying with UL 514B.

2.Material: Use malleable iron or die cast zinc.

3.Connectors and Couplings: Use compression (gland)type. a.Do not use indenter type connectors and couplings.
b.Do not use set-screw type connectors and couplings.

2.07 RIGID POLYVINYL CHLORIDE (PVC)CONDUIT
A.Description: NFPA 70,Type PVC rigid polyvinyl chloride conduit complying with NEMA TC 2 and listed and labeled as complying with UL 651;Schedule 40 unless otherwise indicated, Schedule 80 where subject to physical damage;rated for use with conductors rated 90 degrees C.

B.Fittings:

1.Manufacturer: Same as manufacturer of conduit to be connected.

2.Description: Fittings complying with NEMA TC 3 and listed and labeled as complying with UL 651;material to match conduit.

2.08 ACCESSORIES
A.Corrosion Protection Tape: PVC-based,minimum thickness of 20 mil (0.51 mm).

B.Conduit Joint Compound: Corrosion-resistant,electrically conductive;suitable for use with the conduit to be installed.

C.Solvent Cement for PVC Conduit and Fittings: As recommended by manufacturer of conduit and fittings to be installed.

D.Pull Strings:Use nylon cord with average breaking strength of not less than 500 pound-force (2225 N).

E.Sealing Compound for Sealing Fittings: Listed for use with the particular fittings to be installed.

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PART 3 EXECUTION

3.01 EXAMINATION
A.Verify that field measurements are as indicated.

B.Verify that mounting surfaces are ready to receive conduits.

C.Verify that conditions are satisfactory for installation prior to starting work.

3.02 INSTALLATION
A.Install products in accordance with manufacturer's instructions.

B.Perform work in accordance with NECA 1 (general workmanship).

C.Install galvanized steel rigid metal conduit (RMC)in accordance with NECA 101.

D.Install intermediate metal conduit (IMC)in accordance with NECA 101.

E.Install PVC-coated galvanized steel rigid metal conduit (RMC)using only tools approved by the manufacturer.

F.Install rigid polyvinyl chloride (PVC)conduit in accordance with NECA 111.

G.Conduit Routing:

1.Unless dimensioned,conduit routing indicated is diagrammatic.

2.When conduit destination is indicated without specific routing,determine exact routing required.

3.Conduits installed underground or embedded in concrete may be routed in the shortest possible manner unless otherwise indicated.Route all other conduits parallel or perpendicular to building structure and surfaces,following surface contours where practical.

4.Arrange conduit to provide no more than the equivalent of four 90 degree bends between pull points.

5.Arrange conduit to provide no more than 500 feet (1650 m)between pull points.

6.Route conduits above water and drain piping where possible.

7.Maintain minimum clearance of 12 inches (300 mm)between conduits and piping for other systems.

H.Conduit Support:

1.Secure and support conduits in accordance with NFPA 70 and Section 26 05 29 using suitable supports and methods approved by the authority having jurisdiction.

2.Provide independent support from building structure.Do not provide support from piping, ductwork,or other systems.

3.Use metal channel (strut)with accessory conduit clamps to support multiple parallel surface-mounted conduits.

I.Connections and Terminations:

1.Use approved zinc-rich paint or conduit joint compound on field-cut threads of galvanized steel conduits prior to making connections.

2.Where two threaded conduits must be joined and neither can be rotated,use three-piece couplings or split couplings.Do not use running threads.

3.Use suitable adapters where required to transition from one type of conduit to another.

4.Provide drip loops for liquidtight flexible conduit connections to prevent drainage of liquid into connectors.

5.Terminate threaded conduits in boxes and enclosures using threaded hubs or double lock nuts for dry locations and raintight hubs for wet locations.

6.Where spare conduits stub up through concrete floors and are not terminated in a box or enclosure,provide threaded couplings equipped with threaded plugs set flush with finished floor.

7.Provide insulating bushings or insulated throats at all conduit terminations to protect conductors.

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8.Secure joints and connections to provide maximum mechanical strength and electrical continuity.

J.Penetrations:

1.Do not penetrate or otherwise notch or cut structural members,including footings and grade beams,without approval of Structural Engineer.

2.Make penetrations perpendicular to surfaces unless otherwise indicated.

3.Conceal bends for conduit risers emerging above ground.

4.Seal interior of conduits entering the building from underground at first accessible point to prevent entry of moisture and gases.

5.Where conduits penetrate waterproof membrane,seal as required to maintain integrity of membrane.

K.Underground Installation:

1.Minimum Cover,Unless Otherwise Indicated or Required:
a.Underground,Exterior: 24 inches (610 mm).
b.Under Slab on Grade: 12 inches (300 mm)to bottom of slab.

2.Provide underground warning tape in accordance with Section 26 05 53 along entire conduit length for service entrance where not concrete-encased.

L.Hazardous (Classified)Locations: Where conduits cross boundaries of hazardous (classified) locations,provide sealing fittings located as indicated or in accordance with NFPA 70.

M.Provide grounding and bonding in accordance with Section 26 05 26.

3.03 FIELD QUALITY CONTROL
A.Repair cuts and abrasions in galvanized finishes using zinc-rich paint recommended by manufacturer.Replace components that exhibit signs of corrosion.

B.Where coating of PVC-coated galvanized steel rigid metal conduit (RMC)contains cuts or abrasions,repair in accordance with manufacturer's instructions.

C.Correct deficiencies and replace damaged or defective conduits.

3.04 CLEANING
A.Clean interior of conduits to remove moisture and foreign matter.

3.05 PROTECTION
A.Immediately after installation of conduit,use suitable manufactured plugs to provide protection from entry of moisture and foreign material and do not remove until ready for installation of conductors.

END OF SECTION

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Stormwater Improvements
26 05 33.16 -1 Boxes for Electrical Systems
SECTION 26 05 33.16

BOXES FOR ELECTRICAL SYSTEMS
PART 1 GENERAL

1.01 RELATED REQUIREMENTS
A.Section 26 05 29 -Hangers and Supports for Electrical Systems.

1.02 REFERENCE STANDARDS
A.NECA 1 -Standard for Good Workmanship in Electrical Construction;2015.

B.NECA 130 -Standard for Installing and Maintaining Wiring Devices;2010.

C.NEMA FB 1 -Fittings,Cast Metal Boxes,and Conduit Bodies for Conduit,Electrical Metallic Tubing,and Cable;2014.

D.NEMA OS 1 -Sheet-Steel Outlet Boxes,Device Boxes,Covers,and Box Supports;2013.

E.NEMA 250 -Enclosures for Electrical Equipment (1000 Volts Maximum);2014.

F.NFPA 70 -National Electrical Code;Most Recent Edition Adopted by Authority Having Jurisdiction,Including All Applicable Amendments and Supplements.

G.UL 50 -Enclosures for Electrical Equipment,Non-Environmental Considerations;Current Edition,Including All Revisions.

H.UL 50E -Enclosures for Electrical Equipment,Environmental Considerations;Current Edition, Including All Revisions.

I.UL 508A -Industrial Control Panels;2013.

J.UL 514A -Metallic Outlet Boxes;Current Edition,Including All Revisions.

K.UL 1203 -Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified)Locations;Current Edition,Including All Revisions.

1.03 SUBMITTALS
A.Product Data: Provide manufacturer's standard catalog pages and data sheets for cabinets and enclosures,boxes for hazardous (classified)locations,floor boxes,and underground boxes/enclosures.

1.04 QUALITY ASSURANCE
A.Comply with requirements of NFPA 70.

1.05 DELIVERY,STORAGE,AND HANDLING
A.Receive,inspect,handle,and store products in accordance with manufacturer's instructions.

PART 2 PRODUCTS

2.01 BOXES
A.General Requirements:

1.Do not use boxes and associated accessories for applications other than as permitted by NFPA 70 and product listing.

2.Provide all boxes,fittings,supports,and accessories required for a complete raceway system and to accommodate devices and equipment to be installed.

3.Provide products listed,classified,and labeled as suitable for the purpose intended.

4.Where box size is not indicated,size to comply with NFPA 70 but not less than applicable minimum size requirements specified.

5.Provide grounding terminals within boxes where equipment grounding conductors terminate.

B.Outlet and Device Boxes Up to 100 cubic inches (1,650 cu cm),Including Those Used as Junction and Pull Boxes:

1.Use sheet-steel boxes for dry locations unless otherwise indicated or required.

2.Use cast iron boxes or cast aluminum boxes for damp or wet locations unless otherwise indicated or required;furnish with compatible weatherproof gasketed covers.

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3.Use cast iron boxes or cast aluminum boxes where exposed galvanized steel rigid metal conduit is used.

4.Use suitable concrete type boxes where flush-mounted in concrete.

5.Use suitable masonry type boxes where flush-mounted in masonry walls.

6.Use raised covers suitable for the type of wall construction and device configuration where required.

7.Use shallow boxes where required by the type of wall construction.

8.Do not use "through-wall"boxes designed for access from both sides of wall.

9.Sheet-Steel Boxes: Comply with NEMA OS 1,and list and label as complying with UL 514A.

10.Cast Metal Boxes: Comply with NEMA FB 1,and list and label as complying with UL 514A;furnish with threaded hubs.

C.Cabinets and Enclosures,Including Junction and Pull Boxes Larger Than 100 cubic inches (1,650 cu cm):

1.Comply with NEMA 250,and list and label as complying with UL 50 and UL 50E,or UL 508A.

2.NEMA 250 Environment Type,Unless Otherwise Indicated:
a.Indoor Clean,Dry Locations: Type 1,painted steel.
b.Outdoor Locations: Type 3R,painted steel.

3.Junction and Pull Boxes Larger Than 100 cubic inches (1,650 cu cm):
a.Provide hinged-cover enclosures unless otherwise indicated. b.Boxes 6 square feet (0.56 sq m)and Larger: Provide hinged-cover enclosures.

4.Cabinets and Hinged-Cover Enclosures,Other Than Junction and Pull Boxes:
a.Provide lockable hinged covers,all locks keyed alike unless otherwise indicated. b.Back Panels: Painted steel,removable.

D.Boxes for Hazardous (Classified)Locations: Listed and labeled as complying with UL 1203 for the classification of the installed location.

E.Underground Boxes/Enclosures:

1.Description: In-ground,open bottom boxes furnished with flush,non-skid covers with legend indicating type of service and stainless steel tamper resistant cover bolts.

2.Size: As indicated on drawings.

PART 3 EXECUTION

3.01 EXAMINATION
A.Verify that field measurements are as indicated.

B.Verify that mounting surfaces are ready to receive boxes.

C.Verify that conditions are satisfactory for installation prior to starting work.

3.02 INSTALLATION
A.Install products in accordance with manufacturer's instructions.

B.Install boxes in accordance with NECA 1 (general workmanship)and,where applicable,NECA 130,including mounting heights specified in those standards where mounting heights are not indicated.

C.Arrange equipment to provide minimum clearances in accordance with manufacturer's instructions and NFPA 70.

D.Unless otherwise indicated,provide separate boxes for line voltage and low voltage systems.

E.Box Supports:

1.Secure and support boxes in accordance with NFPA 70 and Section 26 05 29 using suitable supports and methods approved by the authority having jurisdiction.

F.Install boxes plumb and level.

G.Underground Boxes/Enclosures:

1.Install enclosure on gravel base,minimum 6 inches (150 mm)deep.

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2.Install additional bracing inside enclosures in accordance with manufacturer's instructions to minimize box sidewall deflections during backfilling.Backfill with cover bolted in place.

H.Install permanent barrier between ganged wiring devices when voltage between adjacent devices exceeds 300 V.

I.Close unused box openings.

J.Install blank wall plates on junction boxes and on outlet boxes with no devices or equipment installed or designated for future use.

K.Provide grounding and bonding in accordance with Section 26 05 26.

3.03 CLEANING
A.Clean interior of boxes to remove dirt,debris,plaster and other foreign material.

3.04 PROTECTION
A.Immediately after installation,protect boxes from entry of moisture and foreign material until ready for installation of conductors.

END OF SECTION

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26 05 53 -1 Identification for Electrical Systems
SECTION 26 05 53

IDENTIFICATION FOR ELECTRICAL SYSTEMS
PART 1 GENERAL

1.01 SECTION INCLUDES
A.Electrical identification requirements.

B.Identification nameplates and labels.

C.Wire and cable markers.

D.Voltage markers.

E.Underground warning tape.

F.Warning signs and labels.

1.02 RELATED REQUIREMENTS
A.Section 26 05 19 -Low-Voltage Electrical Power Conductors and Cables: Color coding for power conductors and cables 600 V and less;vinyl color coding electrical tape.

1.03 REFERENCE STANDARDS
A.ANSI Z535.2 -American National Standard for Environmental and Facility Safety Signs;2011.

B.ANSI Z535.4 -American National Standard for Product Safety Signs and Labels;2011.

C.NFPA 70 -National Electrical Code;Most Recent Edition Adopted by Authority Having Jurisdiction,Including All Applicable Amendments and Supplements.

D.NFPA 70E -Standard for Electrical Safety in the Workplace;2017.

E.UL 969 -Marking and Labeling Systems;Current Edition,Including All Revisions.

PART 2 PRODUCTS

2.01 IDENTIFICATION REQUIREMENTS
A.Existing Work: Unless specifically excluded,identify existing elements to remain that are not already identified in accordance with specified requirements.

B.Identification for Equipment:

1.Use identification nameplate to identify each piece of electrical distribution and control equipment and associated sections,compartments,and components. a.Enclosed switches,circuit breakers,and motor controllers:
1)Identify voltage and phase.
2)Identify power source and circuit number.Include location when not within sight of equipment.
3)Identify load(s)served.Include location when not within sight of equipment. b.Transfer Switches:
1)Identify voltage and phase.
2)Identify power source and circuit number for both normal power source and standby power source.Include location when not within sight of equipment. 3)Identify short circuit current rating based on the specific overcurrent protective device type and settings protecting the transfer switch.

2.Emergency System Equipment:
a.Use identification nameplate or voltage marker to identify emergency system equipment in accordance with NFPA 70.
b.Use identification nameplate at each piece of service equipment to identify type and location of on-site emergency power sources.

3.Available Fault Current Documentation: Use identification label to identify the available fault current and date calculations were performed at locations requiring documentation by NFPA 70 including but not limited to the following.
a.Service equipment.
b.Industrial control panels.

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c.Motor control centers.

4.Arc Flash Hazard Warning Labels: Use warning labels to identify arc flash hazardsnew equipment provided as part of this project.
a.Minimum Size: 3.5 by 5 inches (89 mm by 127 mm).
b.Legend: Include orange header that reads "WARNING",followed by the word message "Arc Flash and Shock Hazard;Appropriate PPE Required;Do not operate controls or open covers without appropriate personal protection equipment;Failure to comply may result in injury or death;Refer to NFPA 70E for minimum PPE requirements"or approved equivalent.

5.Use warning signs to identify electrical hazards for entrances to all rooms and other guarded locations that contain exposed live parts operating at 600 V nominal or less with the word message "DANGER;Electrical hazard;Authorized personnel only"or approved equivalent.

6.Use warning labels to identify electrical hazards for equipment,compartments,and enclosures containing exposed live parts or exposed conductors operating at over 600 V nominal with the word message "DANGER;HIGH VOLTAGE;KEEP OUT".

C.Identification for Conductors and Cables:

1.Color Coding for Power Conductors 600 V and Less: Comply with Section 26 05 19.

2.Use identification nameplate or identification label to identify color code for ungrounded and grounded power conductors inside door or enclosure at each piece of feeder or branch-circuit distribution equipment when premises has feeders or branch circuits served by more than one nominal voltage system.

2.02 IDENTIFICATION NAMEPLATES AND LABELS
A.Identification Nameplates:

1.Materials:
a.Indoor Clean,Dry Locations: Use plastic nameplates.
b.Outdoor Locations: Use plastic,stainless steel,or aluminum nameplates suitable for exterior use.

2.Plastic Nameplates: Two-layer or three-layer laminated acrylic or electrically non- conductive phenolic with beveled edges;minimum thickness of 1/16 inch (1.6 mm); engraved text.
a.Exception: Provide minimum thickness of 1/8 inch (3 mm)when any dimension is greater than 4 inches (100 mm).

3.Stainless Steel Nameplates: Minimum thickness of 1/32 inch (0.8 mm);engraved or laser- etched text.

4.Aluminum Nameplates: Anodized;minimum thickness of 1/32 inch (0.8 mm);engraved or laser-etched text.

5.Mounting Holes for Mechanical Fasteners: Two,centered on sides for sizes up to 1 inch (25 mm)high;Four,located at corners for larger sizes.

B.Identification Labels:

1.Materials: Use self-adhesive laminated plastic labels;UV,chemical,water,heat,and abrasion resistant.

2.Text: Use factory pre-printed or machine-printed text.Do not use handwritten text unless otherwise indicated.

C.Format for Equipment Identification:

1.Minimum Size: 1 inch (25 mm)by 2.5 inches (64 mm).

2.Legend:
a.Equipment designation or other approved description.

3.Text:All capitalized unless otherwise indicated.

4.Minimum Text Height:
a.Equipment Designation: 1/2 inch (13 mm).
b.Other Information: 1/4 inch (6 mm).

5.Color:
a.Normal Power System:Black text on white background.

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26 05 53 -3 Identification for Electrical Systems

2.03 WIRE AND CABLE MARKERS
A.Markers for Conductors and Cables: Use wrap-around self-adhesive vinyl self-laminating or heat-shrink sleeve type markers suitable for the conductor or cable to be identified.

B.Markers for Conductor and Cable Bundles: Use plastic marker tags secured by nylon cable ties.

C.Legend: Power source and circuit number or other designation indicated.

D.Text: Use machine-printed text,all capitalized unless otherwise indicated.

E.Minimum Text Height: 1/8 inch (3 mm).

F.Color: Black text on white background unless otherwise indicated.

2.04 VOLTAGE MARKERS
A.Minimum Size:

1.Markers for Equipment: 1 1/8 by 4 1/2 inches (29 by 110 mm).

B.Color: Black text on orange background unless otherwise indicated.

2.05 UNDERGROUND WARNING TAPE
A.Materials: Use foil-backed detectable type polyethylene tape suitable for direct burial,unless otherwise indicated.

B.Foil-backed Detectable Type Tape: 3 inches (76 mm)wide,with minimum thickness of 5 mil (0.1 mm),unless otherwise required for proper detection.

C.Legend: Type of service,continuously repeated over full length of tape.

D.Color:

1.Tape for Buried Power Lines: Black text on red background.

2.Tape for Buried Communication,Alarm,and Signal Lines: Black text on orange background.

2.06 WARNING SIGNS AND LABELS
A.Comply with ANSI Z535.2 or ANSI Z535.4 as applicable.

B.Warning Signs:

1.Materials:
a.Indoor Dry,Clean Locations: Use factory pre-printed self-adhesive vinyl signs. b.Outdoor Locations: Use factory pre-printed rigid aluminum signs.

2.Rigid Signs: Provide four mounting holes at corners for mechanical fasteners.

3.Minimum Size: 7 by 10 inches (178 by 254 mm)unless otherwise indicated.

C.Warning Labels:

1.Materials: Use factory pre-printed or machine-printed self-adhesive polyester or self- adhesive vinyl labels;UV,chemical,water,heat,and abrasion resistant;produced using materials recognized to UL 969.
a.Do not use labels designed to be completed using handwritten text.

2.Machine-Printed Labels: Use thermal transfer process printing machines and accessories recommended by label manufacturer.

3.Minimum Size: 2 by 4 inches (51 mm by 102 mm)unless otherwise indicated.

PART 3 EXECUTION

3.01 PREPARATION
A.Clean surfaces to receive adhesive products according to manufacturer's instructions.

3.02 INSTALLATION
A.Install products in accordance with manufacturer's instructions.

B.Install identification products to be plainly visible for examination,adjustment,servicing,and maintenance.Unless otherwise indicated,locate products as follows:

1.Surface-Mounted Equipment: Enclosure front.

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2.Flush-Mounted Equipment: Inside of equipment door.

3.Free-Standing Equipment: Enclosure front;also enclosure rear for equipment with rear access.

4.Elevated Equipment: Legible from the floor or working platform.

5.Interior Components: Legible from the point of access.

6.Conductors and Cables: Legible from the point of access.

C.Install identification products centered,level,and parallel with lines of item being identified.

D.Secure nameplates to exterior surfaces of enclosures using stainless steel screws and to interior surfaces using self-adhesive backing or epoxy cement.

E.Install self-adhesive labels and markers to achieve maximum adhesion,with no bubbles or wrinkles and edges properly sealed.

F.Install underground warning tape above buried lines with one tape per trench at 3 inches (75 mm)below finished grade.

G.Secure rigid signs using stainless steel screws.

3.03 FIELD QUALITY CONTROL
A.Replace self-adhesive labels and markers that exhibit bubbles,wrinkles,curling or other signs of improper adhesion.

END OF SECTION

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SECTION 26 32 13

ENGINE GENERATORS

GENERAL

1.01 RELATED DOCUMENTS
A.Drawings and general provisions of the Contract,including General Conditions and Division 01 Specification Sections,apply to this Section.

B.SUMMARY

1.This Section includes packaged engine-generator sets suitable for use in applications with the features as specified and indicated where the engine generators will be used as the Standby power source for the system.

C.DEFINITIONS

1.Emergency Standby Power (ESP):Per ISO 8528:The maximum power available during a variable electrical power sequence,under the stated operating conditions,for which a generating set is capable of delivering in the event of a utility power outage or under test conditions for up to 200 hours of operation per year with the maintenance intervals and procedures being carried out as prescribed by the manufacturers.The permissible average power output (Ppp)over 24 hours of operation shall not exceed 70 percent of the ESP unless otherwise agreed by the RIC engine manufacturer.

2.Prime Power (PRP):Per ISO 8528:The maximum power which a generating set is capable of delivering continuously whilst supplying a variable electrical load when operated for an unlimited number of hours per year under the agreed operating conditions with the maintenance intervals and procedures being carried out as a prescribed by the manufacturer. The permissible average power output (Ppp)over 24 hours of operation shall not exceed 70 percent of the PRP unless otherwise agreed by the RIC engine manufacturer.

3.Limited Time running Power (LTP):Per ISO 8528:The maximum power available,under the agreed operating conditions,for which the generating set is capable of delivering for up to 500 hours of operation per year with the maintenance intervals and procedures being carried out as prescribed by the manufacturers.

4.Continuous Operating Power (COP):Per ISO 8528:The maximum power which a generating set is capable of delivering continuously whilst supplying a constant electrical load when operated for an unlimited number of hours per year under the agreed operating conditions with the maintenance intervals and procedures being carried out as a prescribed by the manufacturer.

5.Data Center Continuous (DCC):The maximum power which a generating set is capable of delivering continuously whilst supplying a variable or constant electrical load when operated for an unlimited number of hours in a data center application under the agreed operating conditions with the maintenance intervals and procedures being carried out as a prescribed by the manufacturer. The permissible average power output (Ppp)over 24 hours of operation shall not exceed 100 percent of the DCC rating.

6.Operational Bandwidth: The total variation from the lowest to highest value of a parameter over the range of conditions indicated,expressed as a percentage of the nominal value of the parameter.

D.ACTION SUBMITTALS

1.Product Data: For each type of packaged engine generator indicated. Include rated capacities,operating characteristics,and furnished specialties and accessories. In addition,include the following:
a.Thermal damage curve for generator.
b.Time-current characteristic curves for generator protective device. c.Sound test data,based on a free field requirement.

2.Shop Drawings: Detail equipment assemblies and indicate dimensions,weights,and location and size of each field connection.
a.Dimensioned outline plan and elevation drawings of engine-generator set and other components specified.

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b.Wiring Diagrams: Control interconnection,Customer connections.

3.Certifications:
a.Submit statement of compliance which states the proposed product(s)is certified to the emissions standards required by the location for EPA,stationary emergency application.
b.Submit statement of compliance which states the proposed product(s)are seismically certified in compliance with local requirements signed and sealed by a qualified professional engineer.

E.INFORMATIONAL SUBMITTALS

1.Manufacturer Seismic Qualification Certification: Submit certification that the 24 Hour(s) fuel tank,the Sound Attenuated enclosure,engine-generator set,and components will withstand seismic forces defined in Division 26 Section "Vibration and Seismic Controls for Electrical Systems."Include the following:
a.Dimensioned Outline Drawings of Equipment Unit: Identify center of gravity and locate and describe mounting and anchorage provisions.
b.Detailed description of equipment anchorage devices on which the certification is based and their installation requirements.

2.Source quality-control test reports.
a.Certified summary of prototype-unit test report. See requirements in Part 2 "Source Quality Control"Article Part A.Include statement indicating torsional compatibility of components.
b.Certified Test Report: Provide certified test report documenting factory test per the requirements of this specification,as well as certified factory test of generator set sensors per NFPA110 level 1.
c.List of factory tests to be performed on units to be shipped for this Project. d.Report of exhaust emissions and compliance statement certifying compliance with applicable regulations.

3.Warranty:
a.Submit manufacturer’s warranty statement to be provided for this Project.

F.QUALITY ASSURANCE

1.Installer Qualifications: Manufacturer's authorized representative who is trained and approved for installation of units required for this Project.

2.Manufacturer Qualifications: A qualified manufacturer.Maintain,within 150 miles of Project site,a service center capable of providing training,parts,and emergency maintenance repairs.

3.Source Limitations: Obtain packaged generator sets and auxiliary components through one source from a single manufacturer.

4.Comply with NFPA 37 (Standard For the Installation and Use of Stationary Combustion Engines and Gas Turbines).

5.Comply with NFPA 70 (National Electrical Code. Equipment shall be suitable for use in systems in compliance to Article 700,701,and 702).

6.Comply with NFPA 110 (Emergency and Standby Power Systems)requirements for Level 1 emergency power supply system.

G.PROJECT CONDITIONS

1.Environmental Conditions: Engine-generator system shall withstand the following environmental conditions without mechanical or electrical damage or degradation of performance capability:
a.Ambient Temperature: 0.0 deg C (32.0 deg F)to 25.0 deg C (77.0 deg F). b.Relative Humidity: 0 to 95 percent.
c.Altitude: Sea level to 361.0 feet (110.0 m).

H.WARRANTY

1.Base Warranty:Manufacturer shall provide base warranty coverage on the material and workmanship of the generator set for a minimum of twenty-four (24)months for Standby product and twelve (12)months for Prime/Continuous product from registered

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commissioning and start-up.

2.Extended Warranty:Manufacturer shall offer extend coverage of 5 years from date of registered commissioning and start-up.

1.02 PRODUCTS
A.MANUFACTURERS

1.Manufacturers:The basis for this specification is Cummins Power Generation equipment, approved equals may be considered if equipment performance is shown to meet the requirements herein.

B.ENGINE-GENERATOR SET

1.Factory-assembled and -tested,engine-generator set.

2.Mounting Frame:Maintain alignment of mounted components without depending on concrete foundation;and have lifting attachments.
a.Rigging Information:Indicate location of each lifting attachment,generator-set center of gravity,and total package weight in submittal drawings.

3.Capacities and Characteristics:
a.Power Output Ratings:Electrical output power rating for Standby operation of not less than 100.0kW,at 80 percent lagging power factor,277/480,Series Wye,Three phase,3 -wire,60 hertz.
b.Alternator shall be capable of accepting maximum 607.0 kVA in a single step and be capable of recovering to a minimum of 90%of rated no load voltage. Following the application of the specified kVA load at near zero power factor applied to the generator set.
c.Nameplates: For each major system component to identify manufacturer's name and address,and model and serial number of component. The engine-generator nameplate shall include information of the power output rating of the equipment.

4.Generator-Set Performance:
a.Steady-State Voltage Operational Bandwidth: 0.5 percent of rated output voltage from no load to full load.
b.Transient Voltage Performance:Not more than 20 percent variation for 50 percent step-load increase or decrease. Voltage shall recover and remain within the steady- state operating band within 5 seconds. On application of a 100%load step the generator set shall recover to stable voltage within 10 seconds. c.Steady-State Frequency Operational Bandwidth: 0.25 percent of rated frequency from no load to full load.
d.Steady-State Frequency Stability: When system is operating at any constant load within the rated load,there shall be no random speed variations outside the steady- state operational band and no hunting or surging of speed. e.Transient Frequency Performance:Not more than 10 percent variation for 50 percent step-load increase or decrease. Frequency shall recover and remain within the steady-state operating band within 3 seconds.On application of a 100%load step the generator set shall recover to stable frequency within 10 seconds. f.Output Waveform: At full load,harmonic content measured line to line or line to neutral shall not exceed 5 percent total and 3 percent for any single harmonic.

Telephone influence factor,determined according to NEMA MG 1,shall not exceed

50. g.Sustained Short-Circuit Current:(For engine-generator sets using a PMG-excited alternator) For a 3-phase,bolted short circuit at system output terminals,system shall supply a minimum of 300 percent of rated full-load current for not less than 8 seconds without damage to generator system components. For a 1-phase,bolted short circuit at system output terminals,system shall regulate both voltage and current to prevent over-voltage conditions on the non-faulted phases. h.Start Time: Comply with NFPA 110,Level 1,Type 10,system requirements. i.Ambient Condition Performance:Engine generator shall be designed to allow operation at full rated load in an ambient temperature under site conditions,based on highest ambient condition. Ambient temperature shall be as measured at the air inlet

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to the engine generator for enclosed units,and at the control of the engine generator for machines installed in equipment rooms.

C.ENGINE

1.Fuel:ASTM D975 #2 Diesel Fuel

2.Rated Engine Speed: 1800RPM.

3.Lubrication System: The following items are mounted on engine or skid:
a.Lube oil pump:shall be positive displacement,mechanical,full pressure pump. b.Filter and Strainer: Provided by the engine manufacturer of record to provide adequate filtration for the prime mover to be used.
c.Crankcase Drain: Arranged for complete gravity drainage to an easily removable container with no disassembly and without use of pumps,siphons,special tools,or appliances.

4.Engine Fuel System: The engine fuel system shall be installed in strict compliance to the engine manufacturer’s instructions

5.Main Fuel Pump: Mounted on engine. Pump ensures adequate primary fuel flow under starting and load conditions.

6.Governor: Adjustable isochronous,with speed sensing.The governing system dynamic capabilities shall be controlled as a function of engine coolant temperature to provide fast, stable operation at varying engine operating temperature conditions. The control system shall actively control the fuel rate as appropriate to the state of the engine generator. Fuel rate shall be regulated as a function of starting,accelerating to start disconnect speed, accelerating to rated speed,and operating in various isochronous states.

7.Cooling System: Closed loop,liquid cooled
a.The generator set manufacturer shall provide prototype test data for the specific hardware proposed demonstrating that the machine will operate at rated standby load in an outdoor ambient condition of 50 deg C.
b.Coolant: Solution of 50 percent ethylene-glycol-based antifreeze and 50 percent water,with anticorrosion additives as recommended by engine manufacturer. c.Size of Radiator overflow tank: Adequate to contain expansion of total system coolant from cold start to 110 percent load condition.
d.Expansion Tank: Constructed of welded steel plate and rated to withstand maximum closed-loop coolant system pressure for engine used. Equip with gage glass and petcock.
e.Temperature Control: Self-contained,thermostatic-control valve modulates coolant flow automatically to maintain optimum constant coolant temperature as recommended by engine manufacturer.
f.Duct Flange: Generator sets installed indoors shall be provided with a flexible radiator duct adapter flange.

8.Muffler/Silencer: Selected with performance as required to meet sound requirements of the application,sized as recommended by engine manufacturer and selected with exhaust piping system to not exceed engine manufacturer's engine backpressure requirements.

For generator sets with outdoor enclosures the silencer shall be inside the enclosure.

9.Air-Intake Filter:Engine-mounted air cleaner with replaceable dry-filter element and restriction indicator.

10.Starting System: 12 or 24V,as recommended by the engine manufacturer;electric,with negative ground.
a.Components: Sized so they will not be damaged during a full engine-cranking cycle with ambient temperature at maximum specified in Part 1 "Project Conditions"Article. b.Cranking Cycle:As required by NFPA 110 for level 1 systems. c.Battery Cable: Size as recommended by engine manufacturer for cable length as required. Include required interconnecting conductors and connection accessories. d.Battery Compartment: Factory fabricated of metal with acid-resistant finish. e.Battery-Charging Alternator: Factory mounted on engine with solid-state voltage regulation. The battery charging alternator shall have sufficient capacity to recharge the batteries with all parasitic loads connected within 4 hours after a normal engine

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starting sequence.
f.Battery Chargers:Unit shall comply with UL 1236,provide fully regulated,constant voltage,current limited,battery charger for each battery bank. It will include the following features:
1)Operation: Equalizing-charging rate based on generator set manufacturer’s recommendations shall be initiated automatically after battery has lost charge until an adjustable equalizing voltage is achieved at battery terminals. Unit shall then be automatically switched to a lower float-charging mode and shall continue to operate in that mode until battery is discharged again. 2)Automatic Temperature Compensation: Adjust float and equalize voltages for variations in ambient temperature from minus 20 deg C to plus 40 deg C to prevent overcharging at high temperatures and undercharging at low temperatures.
3)Automatic Voltage Regulation: Maintain constant output voltage regardless of input voltage variations up to plus or minus 10 percent. 4)Safety Functions: Sense abnormally low battery voltage and close contacts providing low battery voltage indication on control and monitoring panel. Sense high battery voltage and loss of ac input or dc output of battery charger. Either condition shall close contacts that provide a battery-charger malfunction indication at system control and monitoring panel.
5)Provide LED indication of general charger condition,including charging,faults, and modes. Provide a LCD display to indicate charge rate and battery voltage.

Charger shall provide relay contacts for fault conditions as required by NFPA110.
6)Enclosure and Mounting: NEMA,Type 1,wall-mounted cabinet.

D.FUEL OIL STORAGE

1.Comply with NFPA 30.

2.Sub Base-Mounted Fuel Oil Tank: Provide a double wall secondary containment type sub base fuel storage tank. The tank shall be constructed of corrosion resistant steel and shall be UL 142 listed and labeled. The fuel tank shall include the following features:
a.Capacity: Fuel for 24 Hour(s)continuous operation at 100 percent rated power output.
b.Tank rails and lifting eyes shall be rated for the full dry weight of the tank,genset,and enclosure.
c.Electrical stub up(s)
d.Normal &emergency vents
e.Lockable fuel fill
f.Mechanical fuel level gauge
g.High and low level switches to indicate fuel level
h.Leak detector switch
i.Sub base tank shall include a welded steel containment basin,sized at a minimum of 110%of the tank capacity to prevent escape of fuel into the environment in the event of a tank rupture.
j.Fill port with overfill prevention valve (OFPV)
k.5 gallon fill/spill dam or bucket
l.Tank design shall meet the regional requirements for the Project location E.CONTROL AND MONITORING

1.Engine generator control shall be microprocessor based and provide automatic starting, monitoring,protection and control functions for the unit.

2.Automatic Starting System Sequence of Operation: When mode-selector switch on the control and monitoring panel is in the automatic position,remote-control contacts in one or more separate automatic transfer switches initiate starting and stopping of generator set.

When mode-selector switch is switched to the on position,generator set starts.The off position of same switch initiates generator-set shutdown.(Switches with different configurations but equal functions are acceptable.) When generator set is running,

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specified system or equipment failures or derangements automatically shut down generator set and initiate alarms.Operation of the local (generator set-mounted)and/or remote emergency-stop switch also shuts down generator set.

3.Manual Starting System Sequence of Operation: Switching on-off switch on the generator control panel to the on position starts generator set. The off position of same switch initiates generator-set shutdown. When generator set is running,specified system or equipment failures or derangements automatically shut down generator set and initiate alarms. Operation of the local (generator set-mounted)and/or remote emergency-stop switch also shuts down generator set.

4.Configuration: Operating and safety indications,protective devices,system controls, engine gages and associated equipment shall be grouped in a common control and monitoring panel. Mounting method shall isolate the control panel from generator-set vibration. AC output power circuit breakers and other output power equipment shall not be mounted in the control enclosure.

5.Indicating and Protective Devices and Controls: As required by NFPA 110 for Level 1 system,and the following:
a.AC voltmeter (3-phase,line to line and line to neutral values). b.AC ammeter (3-phases).
c.AC frequency meter.
d.Ammeter-voltmeter displays shall simultaneously display conditions for all three phases.
e.Emergency Stop Switch: Switch shall be a red “mushroom head”pushbutton device complete with lock-out/tag-out provisions. Depressing switch shall cause the generator set to immediately stop the generator set and prevent it from operating. f.Fault Reset Switch: Supply a dedicated control switch to reset/clear fault conditions. g.DC voltmeter (alternator battery charging).
h.Engine-coolant temperature gauge.
i.Engine lubricating-oil pressure gauge.
j.Running-time meter.
k.Generator-voltage and frequency digital raise/lower switches. Rheostats for these functions are not acceptable.The control shall adjustment of these parameters in a range of plus or minus 5%of the voltage and frequency operating set point (not nominal voltage and frequency values.) The voltage and frequency adjustment functions shall be disabled when the paralleling breaker is closed. l.Fuel tank derangement alarm.
m.Fuel tank high-level shutdown of fuel supply alarm.
n.AC Protective Equipment: The control system shall include over/under voltage, reverse kVAR over current,loss of voltage reference,and over excitation shut down protection.There shall be a overload warning,and overcurrent warning alarm. o.Status LED indicating lamps to indicate remote start signal present at the control, existing shutdown condition,existing alarm condition,not in auto,and generator set running.
p.A graphical display panel with appropriate navigation devices shall be provided to view all information noted above,as well as all engine status and alarm/shutdown conditions (including those from an integrated engine emission control system). The display shall also include integrated provisions for adjustment of the gain and stability settings for the governing and voltage regulation systems. q.Panel lighting system to allow viewing and operation of the control when the generator room or enclosure is not lighted.
r.Data Logging: The control system shall log the latest 20 different alarm and shut down conditions,the total number of times each alarm or shutdown has occurred, and the date and time the latest of these shutdown and fault conditions occurred. s.DC control Power Monitoring: The control system shall continuously monitor DC power supply to the control,and annunciate low or high voltage conditions. It shall also provide an alarm indicating imminent failure of the battery bank based on degraded voltage recover on loading (engine cranking).

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t.Paralleling Breaker control switches: The control shall include manual open and close provisions for the paralleling breaker,and LED status lamps indicating whether the breaker is open or closed.

6.Remote Emergency-Stop Switch: Flush;wall mounted,unless otherwise indicated;and labeled. Push button shall be protected from accidental operation.

F.GENERATOR,EXCITER,AND VOLTAGE REGULATOR

1.Comply with NEMA MG 1.

2.Drive: Generator shaft shall be directly connected to engine shaft. Exciter shall be rotated integrally with generator rotor.

3.Electrical Insulation: Class H

4.Temperature Rise: 125 /Class H environment.

5.Construction shall prevent mechanical,electrical,and thermal damage due to vibration, over speed up to 125 percent of rating,and heat during operation at 110 percent of rated capacity.

6.Permanent Magnet Generator (PMG)shall provide excitation power for optimum motor starting and short circuit performance.

7.Enclosure: Drip-proof.

8.Voltage Regulator:SCR type,Separate from exciter,providing performance as specified.

The voltage regulation system shall be microprocessor-controlled,full wave rectified,and provide a pulse-width modulated signal to the exciter. No exceptions or deviations to these requirements will be permitted.

9.Windings: Two-thirds pitch stator winding and fully linked amortisseur winding.

10.Subtransient Reactance:15 percent maximum,based on the rating of the engine generator set.

G.OUTDOOR GENERATOR-SET ENCLOSURE

1.Description: SWeather Aluminum housing. Multiple panels shall be lockable and provide adequate access to components requiring maintenance. Instruments,control,and battery system shall be mounted within enclosure.

2.Construction:
a.Hinged Doors: With padlocking provisions.Restraint/Hold back hardware to prevent door to keep door open at 180 degrees during maintenance. Rain lips over all doors. b.Exhaust System:
1)Muffler Location: Within enclosure.
c.Hardware:All hardware and hinges shall be stainless steel. d.Mounting Base:Suitable for mounting on sub-base fuel tank or housekeeping pad. e.A weather protective enclosure shall be provided which allows the generator set to operate at full rated load with a static pressure drop equal to or less than 0.5 inches of water.

3.Engine Cooling Airflow through Enclosure: Housing shall provide ample airflow for engine generator operation at rated load in an ambient temperature of 50 deg C. a.Louvers: Fixed-engine,cooling-air inlet and discharge.

4.Sound Performance:Reduce the sound level of the engine generator while operating at full rated load to a maximum of 80 dBA measured at any location 7 m from the engine generator in a free field environment.

5.Site Provisions:
a.Lifting:Complete assembly of engine generator,enclosure,and sub base fuel tank (when used)shall be designed to be lifted into place as a single unit,using spreader bars.

H.VIBRATION ISOLATION DEVICES

1.Vibration Isolation: Generators installed on grade shall be provided with elastomeric isolator pads integral to the generator,unless the engine manufacturer requires use of spring isolation.

I.FINISHES

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1.Indoor and Outdoor Enclosures and Components: Powder-coated and baked over corrosion-resistant pretreatment and compatible primer.Manufacturer’s standard color or as directed on the drawings.

J.SOURCE QUALITY CONTROL

1.Prototype Testing: Factory test engine-generator set using same engine model, constructed of identical or equivalent components and equipped with identical or equivalent accessories.
a.Tests: Comply with NFPA 110,Level 1 Energy Converters. In addition,the equipment engine,skid,cooling system,and alternator shall have been subjected to actual prototype tests to validate the capability of the design under the abnormal conditions noted in NFPA110. Calculations and testing on similar equipment which are allowed under NFPA110 are not sufficient to meet this requirement.

2.Project-Specific Equipment Tests: Before shipment,factory test engine-generator set manufactured specifically for this Project. Perform tests at rated load and power factor.

Include the following tests:
a.Test engine generator set manufactured for this Project to demonstrate compatibility and functionality.
b.Full load run.
c.Maximum power.
d.Voltage regulation.
e.Steady-state governing.
f.Single-step load pickup.
g.Simulated safety shutdowns.
h.Provide 14 days'advance notice of tests and opportunity for observation of tests by Owner's representative.

1.03 EXECUTION
A.INSTALLATION

1.Comply with packaged engine-generator manufacturers'written installation,application, and alignment instructions and with NFPA 110.

2.Equipment shall be installed by the contractor in accordance with final submittals and contract documents. Installation shall comply with applicable state and local codes as required by the authority having jurisdiction. Install equipment in accordance with manufacturer's instructions and instructions included in the listing or labeling of UL listed products.

3.Installation of equipment shall include furnishing and installing all interconnecting wiring between all major equipment provided for the on-site power system. The contractor shall also perform interconnecting wiring between equipment sections (when required),under the supervision of the equipment supplier.

4.Equipment shall be installed on concrete housekeeping pads. Equipment shall be permanently fastened to the pad in accordance with manufacturer’s instructions and seismic requirements of the site.

5.Equipment shall be initially started and operated by representatives of the manufacturer.

All protective settings shall be adjusted as instructed by the consulting engineer.

6.All equipment shall be physically inspected for damage. Scratches and other installation damage shall be repaired prior to final system testing. Equipment shall be thoroughly cleaned to remove all dirt and construction debris prior to initial operation and final testing of the system.

7.On completion of the installation by the electrical contractor,the generator set supplier shall conduct a site evaluation to verify that the equipment is installed per manufacturer’s recommended practice.

B.ON-SITE ACCEPTANCE TEST

1.The complete installation shall be tested to verify compliance with the performance requirements of this specification following completion of all site work. Testing shall be conducted by representatives of the manufacturer,with required fuel supplied by

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Contractor. The Engineer shall be notified in advance and shall have the option to witness the tests. The generator set manufacturer shall provide a site test specification covering the entire system. Tests shall include:

2.Prior to start of active testing,all field connections for wiring,power conductors,and bus bar connections shall be checked for proper tightening torque.

3.Installation acceptance tests to be conducted on site shall include a "cold start"test,a two hour full load (resistive)test,and a one-step rated load pickup test in accordance with NFPA 110. Provide a resistive load bank and make temporary connections for full load test,if necessary.

4.Perform a power failure test on the entire installed system. This test shall be conducted by opening the power supply from the utility service,and observing proper operation of the system for at least 2 hours. Coordinate timing and obtain approval for start of test with site personnel.

C.FIELD QUALITY CONTROL

1.Manufacturer's Field Service: Engage a factory-authorized service representative to inspect components,assemblies,and equipment installations,including connections,and to assist in testing.

D.SERVICE AND SUPPORT

1.The generator set supplier shall maintain service parts inventory for the entire power system at a central location which is accessible to the service location 24 hours per day, 365 days per year. The inventory shall have a commercial value of $3 million or more.

The manufacturer of the generator set shall maintain a central parts inventory to support the supplier,covering all the major components of the power system,including engines, alternators,control systems,paralleling electronics,and power transfer equipment.

2.The generator set shall be serviced by a local service organization that is trained and factory certified in generator set service. The supplier shall maintain an inventory of critical power system replacement parts in the local service location. Service vehicles shall be stocked with critical replacement parts. The service organization shall be on call 24 hours per day,365 days per year. The service organization shall be physically located within 150 miles of the site.

3.The manufacturer shall maintain model and serial number records of each generator set provided for at least 20 years.

END OF SECTION

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26 36 00 -1 Transfer Switches
SECTION 26 36 00

TRANSFER SWITCHES
PART 1 GENERAL

1.01 SECTION INCLUDES
A.Transfer switches for low-voltage (600 V and less)applications and associated accessories:

1.Automatic transfer switches.

1.02 RELATED REQUIREMENTS
A.Section 03 30 00 -Cast-in-Place Concrete: Concrete equipment pads.

B.Section 26 05 26 -Grounding and Bonding for Electrical Systems.

C.Section 26 05 29 -Hangers and Supports for Electrical Systems.

D.Section 26 05 53 -Identification for Electrical Systems: Identification products and requirements.

E.Section 26 05 73 -Power System Studies: Additional criteria for the selection of equipment specified in this section.

F.Section 26 32 13 -Engine Generators: For interface with transfer switches.

1.Includes code requirements applicable to work of this section.

2.Includes related demonstration and training requirements.

1.03 REFERENCE STANDARDS
A.NECA 1 -Standard for Good Workmanship in Electrical Construction;2015.

B.NEMA 250 -Enclosures for Electrical Equipment (1000 Volts Maximum);2014.

C.NEMA ICS 10 Part 1 -Industrial Control and Systems Part 1: Electromechanical AC Transfer Switch Equipment;2005,with Errata (2006).

D.NETA ATS -Acceptance Testing Specifications for Electrical Power Equipment and Systems; 2017.

E.NFPA 70 -National Electrical Code;Most Recent Edition Adopted by Authority Having Jurisdiction,Including All Applicable Amendments and Supplements.

F.NFPA 110 -Standard for Emergency and Standby Power Systems;2016.

G.UL 1008 -Transfer Switch Equipment;Current Edition,Including All Revisions.

1.04 ADMINISTRATIVE REQUIREMENTS
A.Coordination:

1.Coordinate compatibility of transfer switches to be installed with work provided under other sections or by others.

2.Coordinate the work with other trades to avoid placement of ductwork,piping,equipment, or other potential obstructions within the dedicated equipment spaces and working clearances required by NFPA 70.

3.Coordinate arrangement of equipment with the dimensions and clearance requirements of the actual equipment to be installed.

4.Coordinate the work with placement of supports,anchors,etc.required for mounting.

5.Notify Engineer of any conflicts with or deviations from Contract Documents.Obtain direction before proceeding with work.

1.05 SUBMITTALS
A.Product Data: Provide manufacturer's standard catalog pages and data sheets for each product,including ratings,configurations,dimensions,finishes,weights,service condition requirements,and installed features.

B.Shop Drawings: Include dimensioned plan views and sections indicating locations of system components,required clearances,and field connection locations.Include system interconnection schematic diagrams showing all factory and field connections.

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26 36 00 -2 Transfer Switches
C.Specimen Warranty: Submit sample of manufacturer's warranty.

D.Manufacturer's Installation Instructions: Indicate application conditions and limitations of use stipulated by product testing agency. Include instructions for storage,handling,protection, examination,preparation,installation,and operation of product.

E.Field quality control test reports.

F.Operation and Maintenance Data: Include detailed information on system operation, equipment programming and setup,replacement parts,and recommended maintenance procedures and intervals.

1.06 QUALITY ASSURANCE
A.Comply with the following:

1.NFPA 70 (National Electrical Code).

2.NFPA 110 (Standard for Emergency and Standby Power Systems);meet requirements for system Level specified in Section 26 32 13.

B.Manufacturer Qualifications: Company specializing in manufacturing the products specified in this section with minimum ten years experience.

C.Product Listing Organization Qualifications: An organization recognized by OSHA as a Nationally Recognized Testing Laboratory (NRTL)and acceptable to authorities having jurisdiction.

1.07 DELIVERY,STORAGE,AND HANDLING
A.Receive,inspect,handle,and store transfer switches in accordance with manufacturer's instructions.

B.Store in a clean,dry space. Maintain factory wrapping or provide an additional heavy canvas or heavy plastic cover to protect units from dirt,water,construction debris,and traffic.

C.Handle carefully in accordance with manufacturer's instructions to avoid damage to transfer switch components,enclosure,and finish.

1.08 FIELD CONDITIONS
A.Maintain field conditions within manufacturer's required service conditions during and after installation.

1.09 WARRANTY
A.Provide minimum two year manufacturer warranty covering repair or replacement due to defective materials or workmanship.

PART 2 PRODUCTS

2.01 MANUFACTURERS
A.Transfer Switches:

1.ASCO Power Technologies: www.ascopower.com .

2.Same as manufacturer of engine generator(s)used for this project.

B.Products other than basis of design are subject to compliance with specified requirements and prior approval of Engineer.By using products other than basis of design,Contractor accepts responsibility for costs associated with any necessary modifications to related work,including any design fees.

2.02 TRANSFER SWITCHES
A.Provide complete power transfer system consisting of all required equipment,conduit,boxes, wiring,supports,accessories,system programming,etc.as necessary for a complete operating system that provides the functional intent indicated.

B.Provide products listed,classified,and labeled as suitable for the purpose intended.

C.Applications:

1.Utilize open transition transfer unless otherwise indicated or required.

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D.Construction Type: Either "contactor type"(open contact)or "breaker type"(enclosed contact) transfer switches complying with specified requirements are acceptable.

E.Automatic Transfer Switch:

1.Transfer Switch Type: Automatic transfer switch.

2.Transition Configuration: Delayed-transition (with neutral position).

3.Voltage: 480 volts.

4.Ampere Rating: 225 amps.

5.Neutral Configuration: Solid neutral (unswitched),except as indicated.

6.Load Served: As indicated on the drawings.

7.Primary Source: Utility.

8.Alternate Source: Generator.

F.Comply with NEMA ICS 10 Part 1,and list and label as complying with UL 1008 for the classification of the intended application (e.g.emergency,optional standby).

G.Do not use double throw safety switches or other equipment not specifically designed for power transfer applications and listed as transfer switch equipment.

H.Load Classification: Classified for total system load (any combination of motor,electric discharge lamp,resistive,and tungsten lamp loads with tungsten lamp loads not exceeding 30 percent of the continuous current rating)unless otherwise indicated or required.

I.Switching Methods:

1.Delayed Transition:
a.Provide break-before-make transfer with programmable time delay in a neutral position not connected to either source,and with interlocks to prevent simultaneous connection of the load to both sources.

2.Obtain control power for transfer operation from line side of source to which the load is to be transferred.

J.Enclosures:

1.Environment Type per NEMA 250:Unless otherwise indicated,as specified for the following installation locations:
a.Outdoor Locations: Type 3R or Type 4X.

2.Provide lockable door(s).

3.Finish: Manufacturer's standard unless otherwise indicated.

K.Short Circuit Current Rating:

1.Withstand and Closing Rating: Provide transfer switches,when protected by the supply side overcurrent protective devices to be installed,with listed withstand and closing rating not less than the available fault current at the installed location as determined by short circuit study performed in accordance with Section 26 05 73.

L.Automatic Transfer Switches:

1.Description: Transfer switches with automatically initiated transfer between sources; electrically operated and mechanically held.

2.Control Functions:
a.Automatic mode.
b.Test Mode: Simulates failure of primary/normal source. c.Voltage and Frequency Sensing:
1)Undervoltage sensing for each phase of primary/normal source;adjustable dropout/pickup settings.
2)Undervoltage sensing for alternate/emergency source;adjustable dropout/pickup settings.
3)Underfrequency sensing for alternate/emergency source;adjustable dropout/pickup settings.
d.Outputs:
1)Contacts for engine start/shutdown (except where direct generator communication interface is provided).

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2)Auxiliary contacts;one set(s)for each switch position. e.Adjustable Time Delays:
1)Engine generator start time delay;delays engine start signal to override momentary primary/normal source failures.
2)Transfer to alternate/emergency source time delay.
3)Retransfer to primary/normal source time delay.
4)Engine generator cooldown time delay;delays engine shutdown following retransfer to primary/normal source to permit generator to run unloaded for cooldown period.
f.Engine Exerciser: Provides programmable scheduled exercising of engine generator selectable with or without transfer to load;provides memory retention during power outage.

3.Status Indications:
a.Connected to alternate/emergency source.
b.Connected to primary/normal source.
c.Alternate/emergency source available.
d.Primary/normal source available.

4.Alarm Indications for Closed Transition Transfer Switches:
a.Failure to synchronize.

5.Other Features:
a.Event log.
b.Communications Capability: Utilize Modbus communications protocol.Provide all accessories necessary for proper interface.
c.Remote monitoring capabilityvia SCADA.

6.Automatic Sequence of Operations:
a.Upon failure of primary/normal source for a programmable time period (engine generator start time delay),initiate starting of engine generator where applicable. b.When alternate/emergency source is available,transfer load to alternate/emergency source after programmable time delay.
c.When primary/normal source has been restored,retransfer to primary/normal source after a programmable time delay.Bypass time delay if alternate/emergency source fails and primary/normal source is available.
d.Where applicable,initiate shutdown of engine generator after programmable engine cooldown time delay.

M.Interface with Other Work:

1.Interface with engine generators as specified in Section 26 32 13.

2.03 SOURCE QUALITY CONTROL
A.Perform production tests on transfer switches at factory to verify operation and performance characteristics prior to shipment.

PART 3 EXECUTION

3.01 EXAMINATION
A.Verify that field measurements are as indicated.

B.Verify that the ratings and configurations of transfer switches are consistent with the indicated requirements.

C.Verify that rough-ins for field connections are in the proper locations.

D.Verify that mounting surfaces are ready to receive transfer switches.

E.Verify that conditions are satisfactory for installation prior to starting work.

3.02 INSTALLATION
A.Perform work in accordance with NECA 1 (general workmanship).

B.Install products in accordance with manufacturer's instructions.

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C.Arrange equipment to provide minimum clearances and required maintenance access.

D.Provide required support and attachment in accordance with Section 26 05 29.

E.Install transfer switches plumb and level.

F.Unless otherwise indicated,mount floor-mounted transfer switches on properly sized 3 inch (80 mm)high concrete pad constructed in accordance with Section 03 30 00.

G.Provide grounding and bonding in accordance with Section 26 05 26.

H.Identify transfer switches and associated system wiring in accordance with Section 26 05 53.

3.03 FIELD QUALITY CONTROL
A.Prepare and start system in accordance with manufacturer's instructions.

B.Automatic Transfer Switches:

1.Inspect and test in accordance with NETA ATS,except Section 4.

2.Perform inspections and tests listed in NETA ATS,Section 7.22.3.The insulation- resistance tests listed as optional are not required.

3.After installing equipment and after electrical circuitry has been energized,installer shall test for compliance with requirements.
a.Perform recommended installation tests as recommended in manufacturer’s installation and service manuals.
b.After energizing circuits,demonstrate interlocking sequence and operational function for each switch.
1)Simulate power failures of normal source to automatic transfer switches and of emergency source with normal source available.
2)Verify time-delay settings.
3)Verify that the transfer switch is accurately metering AC voltage. 4)Verify proper sequence and correct timing of automatic engine starting,transfer time delay,retransfer time delay on restoration of normal power,and engine cool-down and shutdown.

4. C.Correct defective work,adjust for proper operation,and retest until entire system complies with Contract Documents.

D.Submit detailed reports indicating inspection and testing results and corrective actions taken.

3.04 CLEANING
A.Clean exposed surfaces to remove dirt,paint,or other foreign material and restore to match original factory finish.

3.05 CLOSEOUT ACTIVITIES
A.Demonstration: Demonstrate proper operation of transfer switches to Owner,and correct deficiencies or make adjustments as directed.

B.Training: Train Owner's personnel on operation,adjustment,and maintenance of transfer switches.

1.Use operation and maintenance manual as training reference,supplemented with additional training materials as required.

C.Coordinate with related generator demonstration and training as specified in Section 26 32 13.

3.06 MAINTENANCE
A.Maintain an on-site log listing the date and time of each inspection and call-back visit,the condition of the system,nature of the trouble,correction performed,and parts replaced.

END OF SECTION

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SECTION 31 00 00

EARTHWORK
PART 1 GENERAL

1.01 AVAILABLE DOCUMENTS
A. Drawings and general provisions of the Contract, including City General Conditions and Division 1 Specification Sections, apply to this Section.

B. Geotechnical Report “Hollister IWTP Stormwater Improvements, South Street (APNs 052-090-005, -007, & -015), Hollister CA, dated May 24, 2021 prepared by Earth Systems Pacific” for reference only.

C. Geotechnical Report “Bridge Road Stormwater Improvements, Bridge Road, Hollister CA, dated FEB 14, 2024 prepared by Earth Systems Pacific” for reference only.

1.02 SUMMARY
A. Section Includes:

1. Excavation (cut)

2. Embankment (fill)

3. Clearing and grubbing

4. Subgrade preparation
B. Excavation includes excavating all materials, of whatever character and subsurface conditions, as required for the construction of the project, including but not limited to the following:

1. Excavation for roadways.

2. Excavation for the construction of pavement and hardscape areas.

3. Excavation for structure foundations and manholes

4. Excavation for mass grading.

5. Excavation for finish grading.

6. Overexcavation of areas to be recompacted.

C. Embankment (fill) includes the construction of embankments and placing of material, including the following:

1. Embankment for roadways.

2. Embankment for the construction of pavement, and hardscape areas.

3. Backfilling of structures.

4. Embankment for mass grading

5. Embankment for finish grading

6. The placement of native, select and other backfills.

D. Clearing and grubbing includes the removal of all objectionable materials with the area to be graded. Earthwork shall include all clearing and grubbing.

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E. Earthwork shall also consist of the control of ground and surface waters, the application of water for grading operations, the control of dust and mud, erosion control, the removal of unsuitable materials, the furnishing of all labor, materials, tools, equipment and incidentals, and for doing all work that is necessary to construct and maintain the required facilities.

F. Whenever the term finished grade is used, it shall mean the finished surface of the completed facility.

G. Unit Prices: Administrative and procedural requirements for unit prices are specified in Exhibit 5, Items of Construction.

1.03 SUBMITTALS
A. Delivery certifications (load slips) for all aggregate base supplied.

B. Delivery certifications (load slips) for all imported fill and backfill.

C. Delivery certifications (load slips) for concrete slurry backfill.

D. Furnish, without additional cost to the Owner, such quantities of import or native materials as may be required by the Engineer for test purposes.

PART 2 PRODUCTS

2.01 MATERIALS
A. No materials shall be delivered to the site that are not in conformance with these specifications, or unless accepted by the engineer in writing.

B. Select Backfill: Backfill designated as “select”, or “sand” shall conform to be the Caltrans Standard Specifications, Paragraph 19-3.025B for Sand Bedding.

C. Cement Slurry Backfill: Cement Slurry backfill shall be 1-sack mix sand-cement slurry, and shall conform to the material requirements described in Caltrans Standard Specifications, Section 19-3.062.

D. Native Material: The Soils Engineering Report identifies the on-site soil materials.

Native materials excavated from local plant site area may be used as general fill if it meets the requirements listed in these specifications. Such native soils shall not be used for pipe bedding or pipe zone backfill.

E. Fill:

1. Structural fill is defined herein as an import fill material which, when properly compacted, will support foundations, building slabs, pavements, and other fills. The on-site soil may be used as structural fill provided it is free of organics, and deleterious material and rocks greater than 3 inches in size are removed.

2. Imported fill soils for general use at the site as non-expansive imported material shall meet the following criteria:

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a. Be coarse grained and have a plasticity index of less than 15 and/or an expansion index less than 20;
b. Be free of organics, debris or other deleterious material; c. Have a maximum rock size of 3 inches; and
d. Contain sufficient clay binder to allow for stable foundation and utility trench excavations.

F. Crushed Gravel: Crushed gravel shall be free draining crushed rock conforming to ASTM C33 #67 stone. Float Rock or river run gravel is not acceptable.

G. Class 2 Base: ¾” minus, per Caltrans Section 26.

H. Filter Fabric. Filter fabric, where shown or specified on the drawings, shall be Caltrans Standard Specifications (2023) Section 96-1.02B, Class A or approved equal.

2.02 DEFINITIONS
A. Compacted: Unless otherwise stated, the terms "compacted" and "recompacted" refer to soils placed in level lifts not exceeding 8 inches in loose thickness and compacted to a minimum of 95 percent of maximum dry density. For trench backfill level lifts, refer to Section 31 23 33, Trenching and Backfilling.

B. Compaction: Maximum dry density as defined by ASTM D 1557-12.

C. Field density: ASTM D 6938-10
D. Subgrade: The grading plan below an aggregate base or sand layer.

E. Moisture Conditioning: Refers to adjusting the soil moisture to above optimum moisture content prior to application of compactive effort.

2.03 DESIGN PARAMETERS
A. Sub Surface Soil Classification: Based on the data acquired during the subsurface investigation, the site is assigned to Site Class D (“stiff soil”) as defined by Table 20.3-1 of the ASCE 7-16.

B. Seismic Design Parameters: The following seismic design parameters represent the general procedure as outlined in Section 1613 of the CBC 2019 edition and in ASCE 7-16. The values were obtained using the OSHPD Seismic Design Maps Web Application. The seismic factor S1 is greater than 0.2g and the Site Class is ‘D’.

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Summary of Seismic Parameters – CBC 2019
(Site Coordinates 37.3136°N, 122.0690°W)
Parameter Design Value
Site Class D
Mapped Short Term Spectral Response Parameter, (Ss) 2.196g Mapped 1-second Spectral Response Parameter, (S1) 0.817g Site Coefficient, (Fa) 1.0
Parameter Design Value
Site Coefficient, (Fv) 1.71,2
Site Modified Short Term Response Parameter, (SMs) 2.196g Site Modified 1-second Response Parameter, (SM1) 1.389g1 Design Short Term Response Parameter, (SDs) 1.464g
Design 1-second Response Parameter, (SD1) 0.926g1
Seismic Design Category E

1 The 2019 parameter is are based on the assumption that the buildings will conform to ASCE 7- 16 11.4.8 - Exception No. 2.
2 The 2019 CBC Fv parameter shall only be used for calculation of Ts. (ASCE Table 11.4-2, Supplement 1, Note a)
C. Static Settlement: Due to the light loads of the proposed improvement structures and the relative density/consistency of native soils, the anticipated long-term static settlements are estimated to be approximately 0.5 inches with a differential settlement of approximately half of the total settlement over a distance of 30 feet.

D. Retaining Walls

1. Design criteria for retaining walls to laterally retain the on-site soils are presented below:

At-rest equivalent fluid pressure (level backfill)......................60 pcf Active equivalent fluid pressure (level backfill).......................45 pcf

The above earth pressures are for level backfill conditions. For sloping backfill, the above pressures should be increased by 3 pcf per every 5 degree increase in the backfill slope angle. No surcharge loads are taken into consideration in the above provided equivalent fluid pressures.

2. Surcharge loads applied at the surface on the backfill shall be considered to be a uniformly distributed horizontal load. This load would equal to approximately 1/2 of the uniform surcharge load for “at-rest” conditions.

E. Pavement Section Asphalt pavement design sections were developed using the State of California Highway Design Manual, Chapter 630-Flexible Pavement.

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Replacement of existing asphalt pavement shall match existing. For new paved area’s the Traffic Index (TI) for the site shall be 5.5. The calculated Asphalt Concrete (AC) and aggregate base (AB) thicknesses are for compacted subgrade material. An R-value of 65 was used in the design. Normal Caltrans construction tolerances shall apply. The aggregate base shall conform to Caltrans Class 2. A section of AB shall be used below the AC layer.

EXECUTION

2.01 EARTHWORK MAINTENANCE
A. The Contractor shall be responsible for all maintenance related to the earthwork operations. The contractor shall maintain all areas clean of dust, mud and debris, and shall control erosion during the earthwork operations.

B. Street Cleaning: The Contractor shall exercise care in the use of public and private roads and shall repair at his own expense any damage thereto caused by his operations. Such repair shall be to the satisfaction of the owner or agency having jurisdiction over the road. The Contractor shall take whatever means are necessary to prevent tracking of mud onto existing roads and shall keep roads free of debris. The Contractor shall utilize street cleaning machines as necessary to maintain the streets free of dirt and debris from its operations at all times.

C. Dust Control: Take proper and efficient steps to control dust. Contractor to supply water for dust control. Coordinate with City for temporary construction water.

D. Storage of Materials: Neatly place excavated materials far enough from the excavation to prevent stability problems. Keep the materials shaped so as to cause the least possible interference with drainage. Provide all such erosion control measure as are required to prevent loss of material or damage to property. The cost of maintaining and protecting stockpiled materials shall be Pavement Section with AB
Traffic Index AC Thickness AB Thickness
4 2.5” 4”

4.5 2.5” 4”
5 3” 4”

5.5 3” 4”
6 3.5” 4”

6.5 3.5” 4”
7 4” 4”

7.5 4.5” 4”
8 5” 4”

8.5 5” 4”
9 5.5” 4”

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considered to be included in the price paid for excavating, filling, or furnishing the materials, and there will be no separate payment allowed therefore.

E. Existing Facilities: Maintain access to existing facilities to permit continued operation of the IWTP as required by the operator and the City. Maintain access for fire fighting equipment, access to fire hydrants, and other emergency vehicles.

F. Erosion Control shall be as shown on the drawings and as specified in City Special Provisions Section 01424, Erosion Control.

G. Finished Condition: Grades shall be maintained in a finished condition and true to grade until acceptance of the contract as complete.

2.02 SITE PREPARATION, CLEARING AND GRUBBING
A. The site shall be prepared for grading by removing vegetation, debris, and other potentially deleterious materials from areas to receive improvements. Existing utility lines that will not be serving the proposed project shall either be removed or abandoned.

B. Ruts or depressions resulting from the removal of utilities, fill soils, tree root systems, and abandoned and/or buried structures, buried debris, and remnants of the former use of the site that are discovered during site grading shall be removed and properly cleaned out down to undisturbed native soil. The bottoms of the resulting depressions shall be scarified and cross-scarified at least 8 inches in depth, moisture conditioned and recompacted. The depressions shall then be backfilled with approved, compacted, moisture conditioned structural fill, as recommended in these specifications.

C. Protect existing trees designated to remain by placing orange ESA fencing at the drip line or as shown on the drawings prior to any clearing and grubbing or other earthwork.

D. Properly dispose of all removed objectionable and excess material, at no additional cost to Owner.

2.03 EXCAVATION
A. The Contractor shall perform all construction excavation, including hand digging, shoring, de-watering, asphaltic concrete removal, concrete removal, and grading necessary or required for the construction of the Work as covered by these Specifications and indicated on the Drawings. The excavation shall include, without classification, the removal and disposal of all materials of whatever nature encountered, including water and all other obstructions that would interfere with the proper construction and completion of the required work.

B. Contractor shall determine suitability of soils used for general backfill per Paragraph 2.01 of this Section.

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C. Temporary Excavation Slopes: Temporary excavation slopes shall comply with OSHA requirements for the soil types and conditions encountered and the Soils Report. Refer to Section 31 40 00 for shoring requirements. Unless other materials are encountered, temporary excavation slopes shall be constructed as follows:

D. Simple excavation slopes shall have a maximum slope of 1.5:1 (horizontal to vertical) in non-water bearing soils less than 20 feet deep). Flatter slopes and/or a shoring system shall be utilized as the soil conditions dictate.

E. Over excavation for structures:

1. General.
a. Remove any buried structure or spillway, loose or excessively wet soil to firm ground. Backfill the excavation, if required, with on-site soil approved by the Geotechnical Engineer and in accordance with section 3.04 of these specifications.

F. Barriers: Barriers shall be placed around all excavations and at such places as may be necessary to warn all pedestrian and vehicular traffic of such excavations.

G. Sawcutting Pavement: Where trenching or excavation occurs in paved areas to remain, the pavement shall be saw-cut and broken ahead of the trenching or excavation operation. The extent of paving removed shall be limited to the minimum necessary for the excavation. However, the sawcut limits shall be extended for the following reasons:

1. To form neat, straight and square lines.

2. To include areas of pavement damaged by the Contractor.

H. Anchor Trench Excavation:

1. Excavate the anchor trench as shown on the Drawings. Protect the trench from desiccation, sloughing and flooding until backfilled.

2. Round all corners of anchor trench over which liner material will be placed. The inner radius is 12” minimum and 24” maximum.

3. Place excavated material a sufficient distance from the edge of the trench to prevent cave-in or back slides.

4. 2.04 EMBANKMENT (FILL)
A. The Contractor shall perform all construction embankment and filling including shoring, de-watering, backfilling, structural fill, non structural fill, sand and aggregate bases, compaction and grading necessary or required for the construction of the Work as covered by these Specifications and indicated on the Drawings. Embankment (fill), shall include, without classification, the preparation, placement, compaction and finishing of all earth materials to the lines and grades prescribed by the Contract Documents.

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B. Prior to placing new fill, the underlying native soil shall be scarified at least 8 inches, moisture conditioned and recompacted to the recommended relative compaction presented below, unless noted otherwise. This scarification operation shall be performed at locations designated for proposed structural fill, concrete slabs-on-grade, exterior flatwork, foundations, and pavement areas.

C. General fill and backfill soils shall be placed in level lifts not exceeding 8 inches in loose thickness, moisture conditioned, and compacted. All materials used as fill shall be cleaned of all debris and any rocks larger than 3 inches in diameter.

When fill material contains rocks, the rocks shall be placed in a sufficient soils matrix to ensure that voids caused by nesting of the rocks will not occur and that the fill can be properly compacted.

D. Recompacted native soils and fill soils shall be compacted to a minimum relative compaction of 90 percent of maximum dry density at a moisture content at least 2 percentage points above optimum.

E. Scarification: Areas to receive fill shall be prepared by clearing and grubbing, and scarifying to a minimum depth of 8 inches, moisture conditioning and recompacting to the minimum relative compaction specified for the fill to be placed above.

1. Voids created by dislodging cobbles and/or debris during scarification shall be backfilled and recompacted, and the dislodged materials shall be removed from the work area.

2. Obtain approval from the Engineer prior to placing fill on a prepared foundation.

2.05 SLAB SUBGRADE PREPARATION
A. The slab shall be underlain by a capillary break soil layer consisting of a minimum of 4 inches of clean crushed ¾-inch minus angular rock.

B. A vapor retarder shall be provided above the capillary break layer. The vapor retarder shall comply with ASTM Standard Specification E 1745-17 and the latest recommendations of ACI Committee 302. The vapor retarder shall be installed in accordance with ASTM Standard Practice E 1643-18a. Care shall be taken to properly lap and seal the vapor retarder, particularly around utilities, and to protect it from damage during construction.

2.06 EXTERIOR FLATWORK SUBGRADE PREPARATION
A. Exterior flatwork shall be underlain by a 4-inch thick layer of compacted Class 2 aggregate base conforming with Section 26-1.02B of the Caltrans Standard Specifications. Prior to placement of the aggregate base, the subgrade soil shall be moistened as necessary to maintain the soil moisture content at or above optimum, and no desiccations cracks should be present.

2.07 EMERGENCY SPILLWAY SUBGRADE PREPARATION
A. Soils and rock used for the emergency spillways shall be compacted to a minimum relative compaction of 92 percent of maximum dry density at a moisture

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content at least 2 percentage points above optimum and approved by the Geotechnical Engineer. The compacted soil layer shall be a minimum of 12” in thickness.

2.08 BURIED STRUCTURE SUBGRADE PREPARATION
A. Excavate existing soil to a minimum depth specified in the drawings B. Scarify to per specifications section 3.04.

C. The structure shall be placed level and founded on a minimum 1-foot thick bed of crushed gravel. Where free draining crushed gravel is used, it shall be track rolled, wheel rolled, or compacted with a vibratory plate. Compaction testing of crushed gravel is not necessary if the above procedures are used. Wrap gravel fill with filter fabric, when specified in the drawings.

D. The excavation shall be backfilled with an aggregate base material, pea gravel, or controlled density cement backfill. The aggregate base material shall be compacted to a minimum of 90% compaction or as specified by the engineer when tested by astm designation a1557. The upper 2 feet of backfill over the drainage medium shall consist of native soil, compacted to at least 95 of maximum dry density, to reduce the flow of surface drainage into the wall drain system.

2.09 RETAINING WALLS
A. An import drain rock blanket shall be placed behind the retaining wall. The drain rock blanket shall be at least 12 inches wide, and extend along the entire length of the structure walls. The drain rock blanket shall extend from the top of the footing upward to within 2 feet of the top of the structure backfill.

B. The upper 2 feet of backfill over the drainage medium shall consist of native soil, compacted to at least 90 of maximum dry density, to reduce the flow of surface drainage into the wall drain system.

C. The drain rock blanket shall be separated from the backfill soil using a permeable synthetic fabric conforming to Caltrans Standard Specifications, Section 96-

1.02B, Class A. Permeable material should conform to Section 68-2.02F (3), Class 2, of the Caltrans Standard Specifications.

D. A 4-inch diameter, perforated/horizontal pipe shall be placed at the bottom of the drain blanket with perforations down. The pipe shall discharge to an approved discharge point beyond and down slope of the wall.

2.010 PAVEMENT SUBGRADE PREPARATION
A. The base and AC thicknesses are for compacted material. Normal Caltrans construction tolerances shall apply. The aggregate base shall conform to Caltrans Class 2.

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B. The subgrade soil shall be scarified 8 inches, moisture conditioned as necessary and be compacted to a minimum 95 percent of maximum dry density. Aggregate base shall be compacted to at least 95 percent of maximum dry density.

C. The subgrade and base shall be firm and unyielding when proofrolled with heavy, rubber-tired equipment prior to continuing construction. The subgrade soils shall be periodically moistened as necessary prior to placement of the aggregate base to maintain the soil moisture content near optimum

2.011 UNSUITABLE SOIL
A. Unsuitable soil is soil that due to its nature, cannot be properly compacted to or is yielding and cannot provide support for the overlying structural section.

B. A condition of soil moisture exceeding optimum moisture content to a degree that causes yielding or prevents proper compaction shall not be cause to consider soil as unsuitable.

C. The Geotechnical Engineer shall determine whether soil shall be considered unsuitable. If the soil is determined to be unsuitable, the Geotechnical Engineer may direct the Contractor to follow an alternative method of construction to provide additional support. Such alternative measures will be paid for as extra work.

D. Moisture Content: At the time of compaction, the moisture content of fill materials shall be such that the specified relative compaction will be obtained and the fill will be in a firm and stable condition. Fill material which contains excessive moisture shall not be compacted until the material is dry enough to obtain the required compaction. Full compensation for any additional work involved in drying fill material to the required moisture content shall be considered included in the contract price paid for excavating or furnishing the material and no additional compensation will be allowed therefore.

2.012 WET SOIL
A. If wet soils are encountered, the Contractor shall take such measures as are required to dry the soil to a degree that it can be compacted and form a firm and unyielding surface. These measures shall be included in the bid items requiring such compaction and there shall be no separate payment therefore.

2.013 TESTING
A. Material Quality: When requested by the Geotechnical Engineer, the Contractor shall provide samples of earthwork materials furnished or excavated in sufficient quantities for materials testing. There shall be no additional payments made for providing such samples. Should any materials fail to meet the Contract requirements, the Contractor shall remove all such nonconforming material, and replace it with conforming material at no cost to the Owner.

B. Field Testing and Observation:

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1. The Contractor shall coordinate his activities to allow for the following inspection by the City:
a. Review and test materials proposed for use.
b. Observe excavations prior to backfilling or pouring concrete. c. Observe placement and test compaction of fill.

2. The Contractor shall excavate holes for in-place soil sampling. The City will pay for initial testing. If initial tests fail inspection, the failed portions shall be removed, re-compacted, and re-tested. The Contractor shall be responsible for costs of additional inspection and re-testing resulting from non-compliance.

C. Testing Methods:

1. Relative Compaction: In-place density divided by the maximum dry density laboratory compaction expressed as percentage.

2. Durability Index: Manual of Test, State of California, Department of Transportation
a. R Value Testing: California Test 301
b. Specific Gravity: ASTM D854.
c. Laboratory Compaction: ASTM D1557, Method A or C
d. In-place Density: ASTM D1556 or ASTM D2922
e. Particle Size Analysis of Soils: ASTM D422
f. Plastic Limit and Plasticity Index: ASTM D4318
g. Soil Classification: ASTM D2487
h. In-place Moisture Content: ASTM D3017

2.014 CONTROL OF WATER
A. General: The Contractor shall be responsible for the control of surface drainage and subsurface water throughout the construction project.

B. Surface Water: The Contractor shall be responsible for furnishing temporary drainage, sediment and erosion control facilities to convey and dispose of surface water falling on or passing over the site and to minimize water quality impacts.

C. Subsurface Water: The Contractor is responsible for the control of groundwater during general and trench excavations. See Section 31 23 19, Dewatering.

Methods that may be required during construction include over-excavation, pumping, drying soil, and shoring. The Contractor shall include the cost of such measures in the bid items requiring such excavation.

D. Disposal of water: Dispose of water in such a manner as to cause no injury or nuisance to public or private property or be a menace to the public health. De- watering devices must be adequately filtered to prevent the removal of fines from the soil. Contractor can dispose of water at the IWTP Settling Basin 1.

E. Maintain soil moisture content throughout construction. Do not allow desiccation cracks to occur within the project area. If desiccation cracks are allowed to occur, the soils that have cracked due to desiccation shall be removed, moisture conditioned, and recompacted at the Contractors’ expense.

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2.015 DISPOSAL OF EXCAVATED MATERIAL
A. Use as trench backfill: Excavated material shall not be used as trench or select backfill, unless it is designated as such in these specifications or if approved in writing by the Geotechnical Engineer. Also refer to Section 31 23 33, Trenching and Backfilling.

B. Use as onsite fill: Excavated soil may be used as onsite fill, subject to the restrictions in these specifications.

C. Export: Where excavated material will not be reused onsite, the Contractor shall haul the material away. The Contractor is responsible for determining the nature of the material to be exported, for the proper location to deliver the material to, for obtaining all permits and processing, and for the proper placement and handling of the material at the offsite location.

END OF SECTION

WG 1011-0003-41 HDPE GEOMEMBRANE October 2024
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SECTION 31 05 19.16

HDPE GEOMEMBRANE
PART 1 GENERAL

1.1 WORK INCLUDED
A. Furnish all labor, materials, tools, equipment, and perform all work and services necessary for the installation of the high-density polyethylene geomembrane as shown on the Contract Drawings and as specified, in accordance with provisions of the Contract Documents, and completely coordinated with work of all other trades.

B. Although such work is not specifically indicated, furnish and install all supplementary or miscellaneous items, appurtenances and devices incidental to or necessary for a sound, secure and complete liner system.

1.2 SUBMITTALS
A. Contractor shall submit before ordering materials or work start, the following:

1. Submit shop drawings including information on materials properties, manufacturing quality and control.

2. Manufacturer's Certificate of Proper Installation.

3. Proposed installation panel layout.

1.3 QUALITY STANDARDS
A. The manufacturer shall meet the National Sanitation Foundation Standard 54 requirements for Flexible Membrane Liners, and shall have at least five (5) years continuous experience in the manufacture of polyethylene geomembrane and/or experience totaling 10,000,000 square feet of manufactured polyethylene geomembrane.

B. The installation contractor shall be the manufacturer or a dealer trained and licensed to install the manufacturer’s geomembrane.

C. Ensure polyethylene membranes contained in this and referenced sections are produced in full compliance with specified items and any references to codes and standards. Abbreviated forms of more commonly referenced standards are as follows:

1. ASTM – American Society for Testing and Materials

2. GRI – Geosynthetics Research Institute

3. FTMS – Federal Test Method Standards
D. All polyethylene geomembranes, neoprene seals, water cut-off mastic, welding rods, miscellaneous hardware under this section shall be the product of one

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supplier. Approved manufacturers are Poly-Flex, Inc., Watersaver, or approved equal.

PART 2 PRODUCTS

2.1 GENERAL
A. The geomembrane shall be High-Density Polyethylene (HDPE), smooth both side (non-textured).

B. Gasket material shall be neoprene, closed cell medium, ¼ inch thick, 25 foot lengths with adhesive on one side.

C. Metal battens, banding, adjustable clamps, and all hardware shall be stainless steel.

D. Water cut-off mastic shall be Neoprene Flashing Cement, or approved equivalent.

E. Sealant shall be General Electric Silicone, RTV 103, or approved equivalent.

F. The membrane shall be underlain with 10 ounce cushion textile.

2.2 LINER MATERIAL REQUIREMENTS
A. Liner material properties shall be as follows:

PROPERTY TEST METHOD VALUE

Thickness ASTM D 5994 60 mils

Sheet Density ASTM D 1505 0.94 g/cc

Carbon Black Content ASTM D 1603 2.5%

Carbon Black Dispersion, ASTM D 5596 A2

Tensile Properties: ASTM D6693 CAT.1
Tensile Strength at Yield 126 ppi
Elongation at Yield 12%
Elongation at Break 100%
Tensile Strength at Break 90 ppi

Tear Strength ASTM D 1004 42 lb

Puncture Resistance ASTM D 4833 90 lb

Stress Crack Resistance ASTM D5397 300 hours

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UV Resistance, High ASTM D5885 50% retained
Pressure OIT after 1600 hours

PART 3 EXECUTION

3.1 STORAGE

The geomembrane shall be stored so as to be protected from puncture, dirt, grease, moisture and excessive heat. Any damaged material shall be stored separately for repair or replacement. The rolls shall be stored on a prepared smooth surface (not wooden Pallets) and should not be stacked more than two rolls high.

3.2 EARTHWORK
A. General

Inspect the subgrade preparation. Prior to liner installation the subgrade shall be compacted in accordance with Section 31 00 00, Earthwork. All surfaces to be lined shall be steel roller compacted, raked smooth, free of all foreign and organic material, sharp objects, or debris of any kind. The subgrade shall provide a firm, unyielding foundation with no sharp changes or abrupt breaks in grade. Standing water or excessive moisture shall not be allowed.

The Contractor’s installer, on a daily basis, shall document and approve in writing, the surface on which the geomembrane will be installed. After the supporting soil surface has been approved, it shall be the Contractor’s responsibility to indicate to the inspector any changes to its condition that may require repair work.

B. Vegetation Control

If necessary, sterilize the area using an effective soil sterilant specifically formulated for vegetation present in the area. The sterilant shall not be harmful to the liner and shall be applied according to the recommendations of its manufacturer.

C. Cushion Textile Underlay

A 10 ounce cushion textile shall be placed on the prepared soil sub-base prior to the installation of the textured high density polyethylene liner. The cushion textile to be placed only after the soil sub-base has been documented and approved in writing by the Engineer.

D. Anchor Trench

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The anchor trench shall be excavated to the line, grade, and width shown on the project construction drawings, prior to liner system placement. Minimum 4” rounded corners shall be provided in the trench to avoid sharp bends in the geomembrane.

3.3 METHOD OF PLACEMENT
A. The rolls shall be deployed using a spreader bar assembly attached to a loader bucket or by other methods approved by the Engineer.

B. The installer shall be responsible for the following:

1. Equipment or tools shall not damage the geomembrane during handling, transportation and deployment.

2. Personnel working on the geomembrane shall not smoke or wear damaging shoes.

3. The method used to unroll the panels shall not cause scratches or crimps in the geomembrane and shall not damage the supporting soil.

4. Adequate loading (e.g., sand bags or similar items that will not damage the geomembrane) shall be placed to prevent uplift by wind (in case of high winds, continuous loading is recommended along edges of panels to minimize risk of wind flow under the panels).

Geomembrane deployment shall proceed between ambient temperatures of 32°F to 104°F. Placement can proceed below 32° only after it has been verified by the Engineer that the material can be seamed according to manufacturer’s recommendation, and Paragraph 3.4 of this Section.

Geomembrane placement shall not be done during any precipitation, in the presence of excessive moisture (e.g., fog, rain, dew) or in the presence of excessive winds, as determined by the Engineer.

3.4 FIELD SEAMING
A. Approved seaming processes are fusion and extrusion welding. On side slopes, seams shall be oriented in the general direction of maximum slope, i.e., oriented down, not across the slope. In corners and odd-shaped geometric locations, the number of field seams shall be minimized.

B. No base T-seam shall be closer than 5 feet from the toe of the slope. Seams shall be aligned with the least possible number of wrinkles and “fishmouths.” If a fishmouth or wrinkle is found, it shall be relieved and cap-stripped.

1. Seam Overlap. Geomembrane panels must have a finished minimum overlap of 4 inches for fusion welding and 6 inches for extrusion welding.

Cleaning solvents may not be used unless the product is approved by the liner manufacturer.

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2. Seaming Equipment and Accessories. Approved equipment for field seaming are fusion welders and extrusion fillet welders.

3. Test Seams. Field test seams shall be conducted on the liner to verify that seaming conditions are satisfactory. Test seams shall be conducted at the beginning of each seaming period and at least once each 4 hours, for each seaming apparatus and personnel used that day.

All test seams shall be made in contact with the subgrade. Welding rod used for extrusion welding shall have the same properties as the resin used to manufacture the geomembrane. The test seam samples shall be 10 feet long for fusion welding and 3 feet long for extrusion welding with the seam centered lengthwise. Five specimens shall be cut from each end of the test seams by the inspector. The inspector shall use a tensiometer to test 5 specimens for shear and 5 specimens for peel.

Each specimen shall be one inch wide with a grip separation of 4 inches plus the width of the seam. The seam shall be centered between the clamps. The rate of grip separation shall be 2 inches per minute. Test results for seam strength properties shall be the average of five specimens. Four out of five specimens shall pass seam acceptance criteria. Shear and peel tests shall result in Film Tearing Bond (FTB), which is a failure in ductile mode of one of the bonded sheets by tearing prior to complete separation in the bonded area. If a test seam fails to meet field seam specifications, the seaming apparatus and/or seamer shall not be used for seaming until the deficiencies are corrected an a successful test seam is achieved.

4. Non-Destructive Seam Testing. The Installer shall non-destructively test all field seams over their full length.

5. Destructive Seam Testing. Destructive seam testing should be minimized to preserve the integrity of the liner. The installer shall provide the inspector with one destructive test sample per 500 feet of seam length from a location specified by the inspector.

6. Defects and Repairs. All seams and non-seam areas of the geomembrane shall be inspected by the inspector for defect, holes, blisters, undispersed raw materials, and any sign of contamination by foreign matter. The surface of the geomembrane shall be clean at the time of inspection.

Each suspect location in seam and non-seam areas shall be non- destructively tested as appropriate in the presence of the inspector. Each location that fails the non-destructive testing shall be marked by the inspector, and repaired accordingly.

Each repair shall be non-destructively tested. Repairs that pass the non- destructive test shall be taken as an indication of an adequate repair.

Failed tests indicate that the repair shall be repeated and retested until passing test results are achieved.

The inspector shall keep daily documentation of all non-destructive and destructive testing. This documentation shall identify all seams that

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initially failed the test and include evidence that these seams were repaired and successfully retested.

3.5 HDPE JOINTS TO LINER
A. HDPE T-lock embedded into concrete, or other uses of HDPE joining to liner mechanisms, in the areas of joining shall have the liner heat bonded to the joint, lightly ground, and an extrusion weld bead applied all around. The Joint area is to be vacuum tested when complete.

B. Refer to section 3.4.B.6 for defects and repairs.

3.6 BACKFILLING OF ANCHOR TRENCH

The anchor trench shall be backfilled by the earthwork contractor. Trench backfill material shall be placed and compacted in accordance with the project specifications.

Care shall be taken when backfilling the trenches to prevent any damage to the geomembrane. If damage occurs, it shall be repaired prior to backfilling.

3.6 TESTING

The geomembrane quality control testing shall be conducted by the manufacturer and shall meet the following frequency requirements.

TEST DESCRIPTION METHOD FREQUENCY

1. Thickness ASTM D 5994 Every Roll

2. Asperity Height GRI GM 12 Every SecondRoll

3. Tensile Properties: ASTM D 6693 Every 20,000 lb.

Tensile Strength at Yield
Tensile Strength at Break
Elongation at Yield
Elongation at Break

4. Tear Resistance ASTM D 1004 Every 45,000 lb.

5. Puncture Resistance ASTM D 4833 Every 45,000 lb.

6. Carbon Black Content ASTM D 1603 Every 20,000 lb.

7. Puncture Resistance ASTM D 4833 Every 45,000 lb.

8. Carbon Black Dispersion ASTM D 5596 Every 45,000 lb.

9. Density ASTM D 1505 Every 200,000 lb.

10. Oxidative Induction Time ASTM D 3895 Per each formulation

11. Environmental Stress:

Crack Resistance ASTM D 5397 Once per resin lot

Resin lot shall be equal to one railcar of resin or 180,000 lbs.

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The welding rod quality control testing shall be conducted by the manufacturer and shall meet the following frequency requirements.

A sample welding rod shall be tested at the frequency of once per 25 rolls of welding rod. The following tests shall be performed on the sample:

1. Thickness ASTM D 751

2. Density ASTM D 1505

3. Melt Index ASTM D 1238

4. Carbon Black Content ASTM D 1603

Results from the testing shall be reviewed by the Engineer. Material that does not meet specifications shall be identified and placed on hold. The test date shall then be transferred to the product date file for roll certification.

3.7 MATERIALS WARRANTY

The geomembrane shall be free from defects in materials and be able to withstand normal weathering from date of installation, for a period of 20 years for use in an unprotected aerated lagoon with a minimum exposed free-board of 9 linear feet (full sun exposure) around the full perimeter of the lagoon. The Contractor shall warranty installation for a period of 2 years from completion.

END OF SECTION

WG 1011-0003-41 DEWATERING October 2024
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SECTION 31 23 19

DEWATERING
PART 1 GENERAL

1.01 DESCRIPTION
Provide dewatering for trench and structure excavations, if required, in accordance with the Contract Documents. Secure all necessary permits for such Work.

A. Groundwater collected at the IWTP shall be discharged into the City of Hollister IWTP Settling Basin 1.

B. Groundwater collected at the Bridge Rd site shall be discharged back to the existing 84” storm drain system after treatment in accordance with the Construction Stormwater General Permit Order WQ 2022-0057-DWQ, Appendix J. Alternatively groundwater collected at the Bridge Rd site may be hauled to the IWTP and disposed of a described in 1.01A if treatment is not feasible.

1.02 QUALITY ASSURANCE
A. Dewatering operations are the sole responsibility of the Contractor to ensure protection of property, life safety, and proper installation of Work.

B. Material Standards. Furnish lumber for shores, wales, and sheeting of grading required by the American Lumber Standards for the particular application.

C. Control rate of dewatering in such a manner to minimize potential for settlement, and avoid objectionable levels of subsidence.

D. Design dewatering facilities with filters such that removal of sands and fine grained materials is kept to a minimum during the soil dewatering process.

E. Settlement monitoring surveys where required, shall be conducted by a licensed California Land Surveyor.

1.03 SUBMITTALS
A. Submit Dewatering Plan, prepared by qualified professional, including description of materials, equipment and personnel required to employ dewatering, and describe wells, well points, sump pumps, drain rock or gravel placement, and other equipment and means of accomplishing the Work. Include details of standby pumping equipment, standby generators, standby personnel or automated monitoring alarm systems, to be provided. The Dewatering Plan shall describe in detail, any treatment train proposed to meet water quality objectives and compliance with water quality objectives. Once approved, Dewatering Plan shall be incorporated with the Detailed Erosion Control Plan outlined in City Special Provisions Section 01424, Erosion Control. No dewatering work shall take place until such time that the Dewatering Plan is approved by the City and Engineer.

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B. At least 24 hours prior to the beginning of a dewatering discharge at Bridge Road, the discharger shall notify the applicable Regional Water Board stormwater staff via email of the anticipated dewatering discharge.

1.04 JOB CONDITIONS
A. Federal, state and local requirements for safety of job personnel and public apply to work under this Section.

B. Geotechnical investigations have been performed for these Project sites, refer to City Technical Specification Section 01011, Summary of Work.

PART 2 PRODUCTS

2.01 DEWATERING EQUIPMENT
A. Dewatering equipment may consist of wells, well points, sump pumps, drain rock or gravel placement, and other equipment and means of accomplishing the Work. Such equipment shall be described in Para. 1.03A of this Section.

B. Standby pumping equipment, standby generators, standby personnel or automated monitoring alarm systems, shall be provided at all times during working and non-working hours.

2.02 TREATMENT EQUIPMENT
A. Treatment equipment, where used, shall be used as necessary to treat extracted groundwater prior to discharge, such that the discharge meets the objectives outlined in Paragraph 1.05 above.

PART 3 EXECUTION

3.01 GENERAL REQUIREMENTS
A. Provide all equipment, materials, manpower necessary for adequate site dewatering.

B. Maintain all dewatering and treatment equipment in good operating condition, and provide necessary standby equipment and personnel to ensure groundwater dewatering operations can be adequately maintained during power outages.

C. Site water generated as a result of dewatering shall be adequately contained and adequately treated, prior to discharge directly to any water courses or storm drains.

D. Provide dewatering at all times to adequately protect and preserve soil bearing capacity, and prevent quick sand, soft soils, and other undesirable conditions that could impact the integrity of construction Work.

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E. Maintain groundwater level a minimum of one foot below bottom of excavation in all work areas where groundwater occurs.

F. Prevent flotation of pipe by maintaining continuous removal of water from trench.

G. Properly and adequately discharge and dispose of all constructing dewatering water, as described in Part 1 of this Specification. All water shall be adequately settled, filtered or otherwise de-silted prior to discharge.

H. The release of groundwater to its static level shall be performed in such a manner as to maintain the undisturbed state of the natural foundation soils, prevent disturbance of compacted backfill land prevent flotation or movement of structures, pipelines, and sewers.

END OF SECTION

WG 1011-0003-41 TRENCHING AND BACKFILLING October 2024
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SECTION 31 23 33

TRENCHING AND BACKFILLING
PART 1 GENERAL

1.01 SUMMARY
A. Section Includes:

1. Trench excavation

2. Trench Backfill

3. Large Diameter Pipe Trench Backfill (84” and Larger)

4. Control of surface waters and groundwater

5. Temporary and permanent resurfacing

6. OSHA Compliance, Sheeting, Shoring and Bracing
B. SUBMITTALS

1. Delivery certifications (load slips) for all aggregate base and backfill.

2. Delivery certifications (load slips) for concrete slurry backfill.

3. Material samples as may be required by the Geotechnical Engineer for test purposes.

PART 2 PRODUCTS

2.01 General: Comply with City of Hollister Standard Trench Detail E-3-1 and E-4-1.

2.02 Select Backfill: Section 31 00 00 - Earthwork

2.03 Native Material as Trench Backfill: Local in-plant native soil materials shall not be used as trench backfill in the pipe envelope, unless approved in writing by the Engineer.

2.04 Pipe Envelope Material: Select backfill per Paragraph 2.01B, Section 31 00 00 PART 3 EXECUTION

3.01 GENERAL
A. Contractor shall install pipeline as closely as possible to alignment and grade indicated on the Drawings, except for minor adjustments to avoid structural features, make minor adjustments in horizontal and vertical alignment and deflection to tie-in to existing pipelines and to meet general intent of pipeline layout. Minor adjustments to pipeline layout, which may require fittings, couplings, joint deflection or other minor adjustment, are considered Contractor means and methods and are not necessarily shown on the drawings. Contractor shall make such minor adjustments as necessary, at no additional cost to Owner.

B. It is the intent of the Contract Documents to describe a functionally complete project (or part thereof) to be constructed in accordance with the contract documents. any labor, documentation, services, materials, or equipment that

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reasonably may be inferred from the contract documents or from prevailing custom or trade usage as being required to produce the indicated result will be provided whether or not specifically called for, at no additional cost to owner.

3.02 TRENCH EXCAVATION
A. Trenches shall be constructed in accordance with the details shown on the Drawings, and the following:

B. Excavation limits: Excavate trenches to the minimum and maximum trench widths shown on the drawings.

C. Open Trench Construction: Trench construction shall be by open trench excavation unless shown otherwise on the plans.

D. Maximum Length of Open Trench: Except by permission of the Engineer, the maximum length of open trench shall be 200 feet, or the length of pipe that can be installed in a single day, whichever is less. The length of open trench includes open excavation, areas with active pipe laying and backfilling, and those areas not yet temporarily resurfaced.

E. Utility Crossings: Protect all existing facilities to be crossed. Hand digging of trenches may be necessary.

F. Trench Excavation in Existing Paved Areas to be Restored to Pre-Construction Condition: In paved areas, the trench excavation limits shall be sawcut. The sawcut lines shall be straight and neat in appearance and shall be parallel or perpendicular to the trench construction, unless allowed by the Engineer. The sawcut limits shall be extended as necessary to include the entire excavation, and any edges damaged during construction.

G. Trench Excavation in Areas of New Pavement: The trench excavation limits need not be sawcut in areas where new pavement will be installed. All trench excavation and backfilling operations shall be completed prior to final paving.

H. Over-Excavation: If the trench is over excavated below the limits necessary, backfill and compact to 95 percent relative compaction with select backfill. There shall be no additional payment to the Contractor for over-excavations not directed by the Engineer.

I. Unsuitable Material: Unsuitable soil is soil that due to its nature cannot be properly compacted to or is yielding and cannot provide support for the overlying structural section. Excessive moisture content shall not be cause for a material to be considered unsuitable. The Engineer shall determine whether soil shall be considered unsuitable. If the soil is determined to be unsuitable, the Engineer may direct the Contractor to remove the material and replace it with select backfill or other material as directed by the Engineer. Such alternative measures will be paid for as extra work.

J. Wet soil: A condition of soil moisture exceeding optimum moisture content to a degree that causes yielding or prevents proper compaction shall not be cause to consider soil as unsuitable. If wet soils are encountered, the Contractor shall

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take such measures as are required to dry the soil to a degree that it can be compacted and form a firm and unyielding surface. These measures, which may include gravel bedding in lieu of sand bedding, wrapped in filter fabric as directed by the Soils Engineer, shall be included in the bid items requiring trench construction. There shall be no separate payment therefore.

K. Trenches in Fill Areas: Unless shown otherwise on the plans or specifications, trenches to be excavated through fill, including previously placed trench backfill (such as at manholes or for building connections), structural backfill shall be first compacted at a level at least 3 feet from the top of the piping or conduit elevation and then retrenched to pipe grade.

L. Disposal: Disposal of excavated material shall be as specified in Section 31 00 00 - Earthwork.

3.03 PIPE ENVELOPE
A. Unless shown otherwise on the plans, pipe envelope backfill shall be defined as that material 6” below the pipe, supporting, surrounding and extending 12” above the top of pipe, per City of Hollister Pipe Bedding and Trench Detail E-3-1.

B. Unless shown otherwise on the plans or specifications, pipe envelope material shall be granular material compacted to 95 percent and meeting a sand equivalent of 30 or greater.

C. Bedding Placement: Sand bedding in the pipe envelope shall be placed to provide uniform support for the pipe or conduit prior to lowering the pipe or conduit in place. Holes shall be shaped for pipe bells, and the bedding shall be rounded to the shape of the pipe barrel. Bedding shall be compacted to a relative compaction of 95% prior to placing the pipe. Bedding shall be completed and compacted prior to placing any pipe zone backfill.

D. Cement Slurry Bedding Placement: Prior to placing cement slurry bedding, the Contractor shall employ a method to prevent the pipe from floating or shifting position. If the pipe or conduit does float or shift position, the contractor shall be responsible for removing and reinstalling the pipe or conduit. Plugs and/or barriers shall be used to prevent the cement slurry from flowing to unwanted areas of the trench or into the pipe.

E. After placing cement slurry bedding, subsequent backfill shall not be placed for 8 hours unless the subsequent backfill is also cement slurry, except that when concrete sand is used for the aggregate and the in-place material is free draining, backfilling may commence as soon as the surface water is gone.

F. Utility lines in levees: The pipe envelope shall consist of Native Material with minimal sand or gravel, compacted to a minimum relative compaction of 92 percent of maximum dry density at a moisture content at least 2 percentage points above optimum and approved by the Geotechnical Engineer prior to placement.

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3.04 TRENCH BACKFILL
A. Inspection Prior to Backfill: Backfill material shall not be placed over the pipe or conduit until after the joints have been completed and inspected by the Engineer.

B. Protect pipes from flotation during backfill and compaction.

C. Placement of Trench Backfill: Trench Backfill shall be placed in level lifts not exceeding 6 inches in loose thickness, moisture conditioned, and mechanically compacted.

D. The minimum compaction (percent of maximum dry density) shall be:

1. 90 percent for general trench compaction in trench backfill above the pipe envelope to road cross section (aggregate base), and in natural ground and unpaved surfaces.

2. 95 percent within the pipe envelope, unless otherwise specified.

3. In paved plant areas and parking lot, the upper 8-inches below the road cross section (below aggregate base) shall be compacted to 95 percent.

E. Compaction of backfill by jetting or flooding shall not be allowed.

F. No Trenches Left Open: All trenches shall be backfilled to the surface as soon as possible after the installation of the facilities. Prior to stopping work each day, all open trenches shall be backfilled to the surface or protected with non-skid traffic-rated steel plates.

G. If steel plates are used, they shall comply with the Caltrans Construction Manual.

H. Trench backfill in levees: Trench backfill shall consist of Native Material with minimal sand or gravel, compacted to a minimum relative compaction of 92 percent of maximum dry density at a moisture content at least 2 percentage points above optimum and approved by the Geotechnical Engineer prior to placement.

3.05 LARGE DIAMETER PIPE TRENCH BACKFILL (84” AND LARGER) A. Refer to Standard Backfill Detail (Plan Sheet C5.5 Detail 4) B. “Initial Backfill” is synonymous with “Select Backfill” and “Pipe Envelope Backfill” as defined in these specifications with the following exceptions.

1. Initial backfill materials extend from the springline to 12” above the pipe.

2. Pipe bedding and pipe envelope material shall be compacted to 90 percent minimum standard proctor density.

C. Inspection Prior to Backfill: Backfill material shall not be placed over the pipe or conduit until after the joints have been completed and inspected by the Engineer.

D. Protect pipes from flotation during backfill and compaction.

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E. Placement of Trench Backfill: Trench Backfill shall be placed in level lifts not exceeding 6 inches in loose thickness, moisture conditioned, and mechanically compacted.

F. Backfill height differential from one side of pipe to the other shall not exceed 12”.

Only “hand compaction” equipment is allowed over and around the pipe until minimum construction heights are achieved.

G. The minimum compaction (percent of maximum dry density) shall be:

1. 90 percent for general trench compaction in trench backfill above the pipe envelope to road cross section (aggregate base), and in natural ground and unpaved surfaces.

2. 90 percent within the pipe envelope.

3. In paved plant areas and parking lot, the upper 8-inches below road section (aggregate base) shall be compacted to 95 percent.

H. Compaction of backfill by jetting or flooding shall not be allowed.

I. No Trenches Left Open: All trenches shall be backfilled to the surface as soon as possible after the installation of the facilities. Prior to stopping work each day, all open trenches shall be backfilled to the surface or protected with non-skid traffic-rated steel plates or located inside a fenced perimeter.

J. If steel plates are used, they shall comply with the Caltrans Construction Manual.

K. Haunching

1. Haunch material extends from the bedding/foundation material to the springline elevation.

2. Haunching materials shall be “select backfill” as defined in these specifications.

3. Work enough material under the haunch of the pipe by hand to provide proper compaction and side support. Material shall meet the minimum pipe envelope compaction requirements.

4. If trench walls are unstable, sloughing must be prevented so that haunching material can be placed and compacted adequately. A trench box or over-excavation may be required.

5. Pipe shall remain stationary when placing material under the haunch of the pipe.

3.06 TRENCH RESURFACING
A. Surface Restoration: Unless another surface is shown on the plans or specifications, the surface shall be restored to the materials that existed prior to trenching.

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B. Temporary Paving: Prior to final paving, trenches in paved areas subject to live traffic shall be surfaced with cold mix. Cold mix shall be a minimum of 3 inches thick. The Contractor shall maintain the cold mix in a smooth condition flush with the adjacent pavement throughout the time that it is in place.

C. Steel Traffic Plates: When approved by the Engineer, steel traffic plates may be used in lieu of backfilling and temporary paving. Steel plates shall be skid- resistant and placed in accordance with Caltrans Standards. Cold mix shall be used to provide smooth transition around the traffic plates. The Contractor shall monitor the condition of the traffic plates and maintain their placement to provide a safe driving condition.

3.07 TESTING
A. Compaction Testing: The Owner will hire an independent testing company to perform compaction testing. The Contractor shall make the trench available to the tester, at the depths and locations required by the Engineer. When testing requires personnel to enter into a deep trench, the Contractor shall provide all shoring or other methods necessary for a safe working condition in compliance with the approved trench safety plan, The cost of providing safe access to the trench backfill for testing purposes shall be included in the bid items requiring such trench backfill, and there will be no separate payment therefore.

B. Failed Compaction Tests: The Owner will pay for the initial cost of compaction tests. Should any initial or subsequent test indicate that the material fails to meet the required level of compaction, the Contractor shall be responsible for all such measures necessary to bring the material into compliance, at no additional cost to the Owner. The backfill shall then be retested. The Contractor is responsible for the cost of such retesting following a failed test, and the Owner may deduct the cost of such from the amounts owed under the Contract.

3.08 OSHA COMPLIANCE
A. See section 31 40 00 - Shoring and Underpinning

END OF SECTION

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SECTION 31 40 00

SHORING AND UNDERPINNING
PART 1 - GENERAL

1.01 DESCRIPTION
A. General. Provide protective installation consisting of shores, wales, braces, posts, piling, sheeting, anchorages and fastenings, both temporary and permanent, for accomplishment and protection of work. All shoring and underpinning support systems shall be the responsibility of the Contractor, and shall comply with all applicable Federal and California OSHA safety regulations.

B. Work Included.

1. Shoring and sheeting for structure excavation.

2. Temporary sheeting and bracing for piping work.

3. Materials for permanent sheeting and bracing.

1.02 QUALITY ASSURANCE
A. Material Standards. Furnish lumber for shores, wales, and sheeting of grading required by the American Lumber Standards for the particular application.

1.03 SUBMITTALS
A. Submit for record purposes only, not for review or approval, calculations of the shoring system including sheeting size, wales, rakers, anchor system, struts, earth anchors, anchor piles, tie rods or any other components pertinent to the design prior to the start of any work involving sheeting and bracing. All designs submitted shall be signed by an engineer duly registered in the State of California.

B. Cal-OSHA compliance: Nothing in this section shall be deemed to allow the use of a shoring, sloping, or protective system less effective than that required by the construction safety orders. Failure to comply with any of the Cal-OSHA rules, orders, and regulations shall be sufficient cause for the Engineer to immediately suspend all work. No compensation for costs incurred by such emergency suspension will be allowed.

C. Designation of the Competent Person for trench safety as defined by Cal-OSHA.

D. Trench Safety Plan: Prior to performing excavation for any trench over five feet in depth, the Contractor shall submit for approval by the Engineer, a detailed plan showing the design of shoring, bracing, sloping, or other provisions to be made for worker protection from the hazard of caving ground during the excavation of trenches. If such plan complies with the Construction Safety Orders, it shall be submitted at least 5 working days prior to the start of trench excavation. If such

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plan varies from the Cal-OSHA Construction Safety Orders, the plan shall be prepared and signed by a registered Civil Engineer, and shall be submitted at least 4 weeks prior to any trench excavation. No trenching shall begin until such plan has been approved by the City.

1.04 JOB CONDITIONS
A. The description of job conditions under Section 31 00 00 Earthwork and Section 31 23 33 Trenching and Backfilling, forms a part of this subsection. Federal, state and local requirements for safety of job personnel and public apply to work under this Section.

1.05 CAL-OSHA COMPLIANCE
A. Excavation Safety: The Contractor's attention is directed to the provisions in Sections 6705, and 6707 of the State Labor Code, California Civil Code Section 832, the United States Department of Labor Rules 29 CFR, Part 1926, the Cal- OSHA Construction Safety Orders, Section 5.47, Safety and Trenching of these Specifications.

B. Permit: The Contractor shall have a Cal-OSHA permit as required by California Labor Code Section 6500. Prior to beginning any excavation, the Contractor shall submit a copy of the Cal-OSHA permit and shall identify in writing the Competent Person designated to be in charge of trench safety for this project.

C. Adjacent Improvements: Provide support for excavations adjacent to existing improvements and structures to prevent damage or settlement. Attention is directed to the Soils Engineering Report and to Section 832 of the Civil Code of the State of California relating to lateral and subjacent supports.

D. Removal of trench supports: The support for excavation shall remain in place until the pipeline or structure has been completed. During the backfilling of the pipeline or structure, the shoring, sheeting, and bracing shall be carefully removed so there shall be no voids created and no caving, lateral movement, or flowing of the subsoil.

PART 2 - PRODUCTS

2.01 MATERIALS
A. Lumber.

1. Temporary Shores, Wales and Sheeting. Furnish structural grade planks, beams, and posts as defined and specified for stress-grade lumber in the American Lumber Standards. Lumber may be rough, untreated, in random lengths, and shall be of standard dimensions.

2. Permanent Sheeting. When permanent sheeting is called for on the Drawings, provide and install planks, beams, posts and timbers of unseasoned, rough, new southern yellow pine or Douglas Fir meeting the

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requirements of ASTM Standard D25, Class "C". In lieu of the above, lumber dressed to standard dimensions, dried and treated in accordance with Standard T-3 of the American Wood Preservers' Association may be utilized.

B. Fastenings. Provide fastenings for permanent sheeting as recommended in the National Design Specification for stress-grade lumber and its fastening.

PART 3 - EXECUTION

3.01 INSTALLATION
A. Install sheeting and bracing for trench and structure excavation progressively as the removal of excavated material requires. Butt planks to exclude groundwater and fines, preventing the erosion of voids outside sheeting. In soft, wet ground drive sheeting to a lower level as excavation progresses so that sheeting is embedded in undisturbed earth. Bracing of sheet piling may be permitted to penetrate the structural concrete only as approved by the Engineer. Install wales and struts at close intervals so as to prevent displacement of the surrounding earth and to maintain safe conditions in the work area. Any damage proven to result from improper installations shall be the responsibility of the Contractor.

Withdraw individual planks alternately as the backfill is raised, maintaining sufficient sheeting and bracing to protect the Work and workmen. Remove bracing completely. Where unstable conditions occur in the underlying strata from any cause, and withdrawal of sheeting will endanger the Work, a portion of the sheeting, including bracing, may be left in place with approval of the Engineer. Remove all wood within the zone extending below a depth of four (4) feet from finished grade. Leaving such material in place shall not be cause for an increase in Contract Price.

END OF SECTION

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SECTION 33 00 00

UTILITIES
PART 1 GENERAL

1.01 DESCRIPTION

Furnish and install all Ductile Iron and polyvinyl chloride (PVC) pipe, steel reinforced high density polyethylene (SRPE) pipe; valves, fittings and appurtenances shown and specified in accordance with the requirements of the Contract documents. The pipelines shall be complete with all necessary fittings, couplings, supports, anchors and restraint, connectors, lining and coatings, testing, disinfection (where applicable), excavation, backfill, to provide a complete and functional installation. Coordinate alignment and installation of all new site utilities, protection of existing utilities in place, tie-in to existing utilities where shown on the plans. It shall be the Contractor’s responsibility to coordinate alignments of utilities and tie-ins required as part of the Work, at no additional cost to the Owner.

1.02 SUBMITTALS

In accordance with City Special Provision 01300, Submittals, submit manufacturer’s Literature for pipe, couplings, valves, fittings, linings and coatings, restrained joints, tape wrap, tracer wire, and other pipeline components, demonstrating compliance with this Section.

1.03 QUALITY ASSURANCE
A. MANUFACTURER REQUIREMENTS

1. HDPE pipe shall be tested at the extrusion facility for properties required to meet all applicable parameters as outlined in AWWA C906, and applicable sections of ASTM F714.

2. The pipe profile shall be manufactured using a high quality stress-rated thermoplastic meeting the requirements of ASTM F2562 “Standard Specification for Steel Reinforced Thermoplastic Ribbed Pipe and Fittings for Non-Pressure Drainage and Sewerage” or AASHTO Designation M 335 and MP 40.

1.04 DELIVERY, STORAGE AND HANDLING
A. General. Pipe shall at all times be handled with equipment designed to prevent damage to the pipeline, and interior and exterior coating of the pipeline. Ductile iron pipe with cement mortar lining or having any other special coating or lining shall only be handled with wide canvas or rubber covered slings. Bare cables, chains hooks, or metal bars shall not be allowed to come in contact with the coating. Hammering or otherwise means of impact to pipe walls shall not be allowed.

B. Shipping. When making shipments, all chains, cables and hold-down equipment shall be carefully padded where in contact with the pipe.

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C. Unloading. Unloading from the trucks shall be done with care using slings as indicated above for steel pipe. No pipe shall be allowed to fall from trucks. Pipe shall only be unloaded using a crane or fork lift.

D. Gaskets. Gaskets shall be stored in containers or wrappers which will protect the gaskets from ozone and other atmospheric deterioration.

E. Polyethylene Pipe. Handle pipe in accordance with the PPI Handbook of Polyethylene Pipe (2nd Edition), Chapter 2 using approved strapping and equipment rated for the loads encountered. Do not use chains, wire rope, forklifts or other methods or equipment that may gouge or damage the pipe or endanger persons or property.

Field storage is to be in compliance with AWWA Manual of Practice M55 Chapter

7. If any gouges, scrapes, or other damage to the pipe results in loss of 10% of the pipe wall thickness, cut out that section or do not use.

F. Kit Fox Mitigation Pipe Storage Requirements. See section 01 35 00, Special Project Procedures

1.05 WARRANTY
A. Unless otherwise specified, all pipe shall be warranted for one year per the pipe suppliers’ standard terms.

PART 2 PRODUCTS

2.01 CITY OF HOLLISTER STANDARD SPECIFICATIONS (2019)
A. Comply with water utility standards in the City of Hollister Standard Specifications.

Where conflicts exist between materials specified in the City Standard Specification and this Specification, requirements of this Section shall prevail.

2.01 DUCTILE IRON PIPE, 6 INCH THROUGH 8 INCH (BURIED WATER LINES) A. Pipe and Specials. Unless otherwise specified elsewhere, ductile iron pipe shall be pressure Class 350 for 12” diameter and smaller pipe, and shall conform to the requirements of ANSI/AWWA Specifications: ANSI/AWWA C150/A21.50 and AWWA/ANSI C-151/A21.51.

B. Fittings. Fittings in pipelines rated at 175 psi and less shall conform to the requirements of ANSI/AWWA C110/A21.10, Class 350 for up to 12 inches.

C. Lining and Coating.

1. Mortar Lining. Per AWWA C104, with seal coat per ANSI Specification A21.4.

2. Coatings:
a. Buried Service: Unless specified otherwise, the exterior of all buried ductile iron fittings shall be coated with a 1 mil asphaltic coating in accordance with AWWA C151, Section 51-9, and polyethylene encased per AWWA C105.
b. Exposed Service: For pipe interior to wet wells and vaults, provide pipe with standard asphaltic coating per AWWA C151. All ductile iron pipe to receive polyurethane coating shall be delivered to the Project Site without standard asphaltic coatings.

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D. Joints. Exposed joints shall be flanged or restrained mechanical joints unless otherwise shown on Drawings. Buried joints shall be push-on or mechanical joints, and restrained mechanical joints where restraint is specified. Joints shall conform to the requirements of ANSI A21.15 (AWWA C115) or A21.11 (AWWA C111). Restraining of joints shall be as recommended in the Ductile Iron Pipe Research Association (DIPRA) Handbook of Ductile Iron Pipe.

2.02 POLYVINYL CHLORIDE (PVC) C900 PIPE, 6 INCH THROUGH 8 INCH (BURIED WATER LINES)
A. Pipe shall AWWA C900, Class 235 PVC, for pipe 12 inch and smaller.

B. Restrained joints shall be restrained mechanical joints with a split ring restraining clamp, or special PVC restrained fittings or locking bell joints. Acceptable restrained joint fittings are manufactured by EBAA Iron, Uni-Flange, and Smith-Blair, Inc. or approved equal.

2.03 STEEL REINFORCED POLYETHYLENE (SRPE) PIPE, 54 INCH THROUGH 84 INCH (BURIED STORM DRAINS)
A. SRPE: Steel reinforced polyethelyne (SRPE) storm drain pipe shall have double wall construction with a smooth interior wall and corrugated exterior wall.

1. Pipe & Fittings: The pipe profile is manufactured using a high quality stress- rated thermoplastic meeting the requirements of ASTM F2562 “Standard Specification for Steel Reinforced Thermoplastic Ribbed Pipe and Fittings for Non-Pressure Drainage and Sewerage” or AASHTO Designation M 335 and MP 40.

2. Resins: Resins shall conform to the minimum requirements of cell classification 345464C as defined and described in the latest version of ASTM D3350 “Standard Specification for Polyethylene Plastics Pipe and Fittings Materials”.

3. Joints: Pipes shall be joined using ultra high performance (UHP) bell & spigot joint meeting the requirements ASTM F2562 “Standard Specification for Steel Reinforced Thermoplastic Ribbed Pipe and Fittings for Non-Pressure Drainage and Sewerage” or AASHTO Designation M 335 and MP 40. The joint shall be water tight under a pressure of 10.8 psi per the requirements of ASTM D3212 “Standard Specification for Joints for Drain and Sewer Plastic Pipes Using Flexible Elastomeric Seals”. Gaskets shall meet the requirements of ASTM F477. Gaskets shall be installed by the pipe manufacturer and shall be free from debris. A joint lubricant available from the manufacturer shall be used on the gasket and bell during assembly. Piping shall pass same tests as above with an axial joint misalignment of not less than 1 degree.

4. Manufacturers:
a. Contech Duromaxx® SRPE with QuikJoint® with UHP Technology. b. Approved equal

5. All pipe supplied shall meet the minimum joint performance requirements as defined herein and as further defined in the joint performance requirements of this specification.

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2.04 FITTINGS FOR PRESSURE PIPE, 6-INCH THROUGH 8-INCH
A. Fittings shall be ductile iron in accordance with AWWA C110, AWWA C153, or AWWA C606, latest revisions, and in accordance with City of Hollister Specifications and Drawings. Linings and coatings as specified in Paragraph 2.01.C.

B. Nuts and bolts: All fittings shall utilize 304 stainless steel bolts and nuts, unless otherwise specified, and shall have anti-seize substance applied to the threads during installation.

C. Type of fitting: Unless specified otherwise, fittings shall be of the type listed below:

Buried: Mechanical joint or restrained joint.

D. Long Radius Bends: All 90 degree bends shall be long radius bends. Long radius bends shall be as manufactured by American Ductile iron Pipe Co, US Pipe Co, or equal.

E. Pressure Rating:

Flanged joints: 4" - 64" 250 psi

Push-on, restrained push-on,
or mechanical joints: 4" - 24" 350 psi

Grooved joints: 4" - 36" 250 psi

Grooved couplings: 4" - 18" 250 psi
F. Gaskets: Rubber gasket joints for ductile iron pressure pipe and fittings shall be styrene butadiene rubber (SBR), ethylene propylene rubber (EPT, EPDM), or chloroprene (Neoprene, CR), in accordance with the requirements of AWWA C111.

2.05 FLANGES
A. All flanges shall conform to AWWA C207 Class D or ANSI B16.1 Class 150. Bolt holes in all flanges shall straddle the field vertical centerline.

2.06 RESTRAINED JOINT ADAPTERS
Adapters for providing restraint shall be able to replace a standard mechanical joint gland and shall conform to the following:

A. Adapters for DIP: Shall utilize multiple lugs to provide full circle restraint. Minimum pressure rating shall be 250 psi. Sizes 3" - 12" shall be UL approved for 350 psi on DIP.

EBAA Iron Series 1100 Megalug,
Sigma One-Lok for DIP or equal

2.07 METALLIC PRESSURE MAINS.

A. Provide tracer wire on all buried pressure mains.

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B. All tracer wire shall be a minimum #10 insulated tracer wire in accordance with the City of Hollister Standards.

2.08 POLYETHYLENE ENCASEMENT
All Ductile Iron fittings, and all valves buried underground shall be encased with loose polyethylene film unless otherwise stated on the plans or in these specifications.

A. Loose polyethylene film encasement shall be not less than 8 mils thick, and shall be applied per the requirements of the latest revised Standard of ANSI/AWWA C 105/A21.5 entitled, "Polyethylene Encasement for Ductile-Iron Piping for Water and Other Liquids," shall be closely followed.

B. Pipe wrap tape, 10 mil minimum, duct tape or equivalent, not less than 2" wide shall be used to secure the polyethylene film. Tape shall extend around the pipe at least twice at teach end of the piece of film being installed.

PART 3 EXECUTION

3.01 GENERAL
A. Installation.

1. Pipes shall be installed in accordance with the minimum requirement of the pipe manufacturer, and shall be as supplemented by the provisions specified herein. The interior of pipe, fittings, and couplings shall be clean and free from contamination when installed and effective means shall be taken to prevent the entrance of foreign matter during progress of the work. The types and sizes of pipes and fittings to be used shall be as specified herein and as shown on the Drawings. Where fittings are omitted from the Drawings, they shall be the same size as the piping and in all cases shall conform to the plumbing code requirements.

2. All pipe shall be carefully placed and supported at the proper lines and grades and where practicable shall be sloped to permit complete drainage.

Piping runs shown on the Drawings shall be followed as closely as possible.

If relocations are required, they shall be approved by the Owner.

3.02 TRENCH CONSTRUCTION:

Comply with trench detail on the plans, and Section 31 23 33, Trenching and Backfilling.

3.03 PIPE LAYING
A. Install to the grade and invert elevations shown on the plans. Allow on-site visual inspection by Owner’s Representative of all piping prior to backfilling, upon request.

B. Temporary Plugs: When, for any reason, pipe laying is discontinued for an hour or more, the open end of each line shall be closed with a close-fitting stopper.

3.04 JOINT RESTRAINT
A. Joint Restraint at Bends: Provide joint restraint at all bends for pressure pipes. For buried pipe, concrete thrust blocks, restrained fittings or flanged connections shall be used as the joint restraint unless indicated or shown on the drawings.

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B. Concrete Thrust Blocks: Shall be sized according to the details on the plans, City of Hollister Standard Detail B-9-1.

C. Restrained Joint Adapters:

1. Restrained joint adapters shall be in accordance with the manufacturer's instructions.

2. When used underground, the joint adapter shall be wrapped with 3 layers of 8 mil polyethylene. Ends of wrap shall be taped, three (3) layers minimum, with 10 mil pipe wrap tape.

3.05 TRACER WIRE
A. Tracer wire shall be placed on top of pipe per City of Hollister Standard Detail B-7.

1. Where valve boxes exist, pull wire into each valve box and terminate with wire nuts.

2. Where valve boxes do not exist, extend wire above ground surface or concrete pad by 6 inches, and terminate with a wire nut. Affix loose end of wire to exposed pipe using tape wrap per Para. 2.09.

3.06 INSTALLATION OF DUCTILE IRON PIPE
A. Pipe Laying.

1. Inspection. All pipe shall be carefully inspected by the Owner's representative for defects before installation. Such inspection shall include light tapping with a hammer while the pipe is suspended in the air. No pipe or fittings which are cracked or which show defects excluded by the Specifications for such pipe or fittings shall be used. All injuries to the protective coating of the pipe or fittings shall be carefully repaired by the Contractor.

2. Cleanliness of Material. All pipes, valves, and fittings shall be carefully cleaned before installation. Every open end of a pipe shall be carefully and securely plugged or capped before leaving the work.

3. Positioning. For bell and spigot pipe, the position or direction of bells, which shall normally face upstream of the flow, may be altered from the positions shown on the Drawings with the permission of the Engineer. Bells and spigots must be thoroughly cleaned and free from oil, grease, blisters, and excess coating before spigots are inserted into bells. The spigot end of the pipe shall be brought to true line and grade and be inserted to the full depth of the socket before the joints are made. The inner surface of the pipe shall be of uniform width and depth. If any pipe does not allow sufficient space for jointing material, it shall be replaced by one of proper dimensions.

4. Deflection. The maximum deflection in bell and spigot cast or ductile iron pipe joints shall be such that the joint opening measured at the outside of the pipe shall not exceed 0.8 inch and the caulking space shall be not less than

0.24 inch.

5. Anchorage. Anchorage lugs shall be provided where there is a possibility of pulling the joint under pressure. Concrete thrust blocks may be used in lieu of the above for buried pipe.

6. Piping Through the Walls. Where pipes pass through walls, care shall be exercised to insure joints being watertight. The pipe shall be free of all dirt and grease to secure a tight bond with the concrete.

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B. Rubber-Ring Joints. Between lengths of buried cast or ductile iron pipe, rubber gasket joints may be used. Joints shall conform to AWWA C111. Installation shall be in accordance with the Manufacturer's printed recommendations. Gasket seats and rubber gaskets shall be thoroughly cleaned before assembly. The completed joint shall have a uniform contact by the gasket between the outer surface of the spigot and the gasket seat of the bell.

C. Flanged Joints. Flanged pipe shall be cut true to length. Joints shall be made up square, with even pressure upon the gaskets and shall be perfectly water-tight.

Gaskets shall fit the inside dimension of the pipe accurately, so that no surplus material projects out into the flow area. The completed joint shall be smooth and properly aligned.

3.07 INSTALLATION OF THICK WALL POLYVINYL CHLORIDE PRESSURE (PVC) PIPE A. Installation of this pipe shall be in accordance with AWWA C900. Trenching shall be in accordance with Section 31 23 33, Trenching and Backfilling, and the City standard trench detail.

3.08 INSTALLATION OF STEEL REINFORCED POLYETHYLENE (SRPE) PIPE A. Each pipe shall be thoroughly examined before being laid; defective or damaged pipe shall not be used. Pipelines shall be laid to the grades and alignment indicated.

Proper facilities shall be provided for lowering sections of pipe into trenches. Pipe shall not be laid in water, and the pipe shall not be laid when trench conditions or weather are unsuitable for such work.

B. Pipe lengths shall be joined on site shall meet the performance level as required and specified:

1. High performance (HP) gasketed joint (54” – 78”): HP joints shall be gasketed, bell and spigot joints where both the bell and spigot are reinforced with steel that is fully encased in stress-rated high density polyethylene and that can be field tested to 10.8 psi when tested in accordance with ASTM D3212 “Standard Specification for Joints for Drain and Sewer Plastic Pipes Using Flexible Elastomeric Seals”.

C. All Bell-and-Spigot pipe joints shall be thoroughly cleaned. Joint lubricant, supplied by the manufacturer, shall be liberally applied to entire interior of bell and gasket on spigot prior to assembly.

D. Prior to installation, the pipe shall be inspected for cuts, punctures or excessive abrasion that may have resulted from shipping or handling damage. Cut out damaged spots and recouple into the continuous length. Blow out pipe before any final connections are made to eliminate any dirt or sand that may have entered the pipe during installation. When cutting pipe, use cutters especially designed for pipe and recommended by the pipe manufacturer.

3.09 TESTING
A. Perform pressure testing per City of Hollister Standard Specification Section 306-1.4.

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B. For water lines, perform a residual chorine test per City of Hollister Standard Detail B-7 note 8.

C. Testing for Gravity Storm Drain Piping is not required D. Perform testing in the presence of the Engineer. In the event of a failed test, correct all deficiencies and retest. The contractor is responsible for all costs associated with retesting following failed tests, and the City may deduce such costs from the payments due.

END OF SECTION

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SECTION 33 44 00

STORMWATER UTILITY EQUIPMENT
PART 1 GENERAL

1.01 GENERAL
A. This section shall govern the furnishing and installation of a continuous deflection separation (CDS) hydrodynamic separator, complete and operable as shown and as specified herein, in accordance with the requirements of the plans and contract documents.

B. The Contractor shall furnish all labor, equipment and materials necessary to install the storm water treatment device(s) (SWTD) and appurtenances specified in the Drawings and these specifications.

1.02 RELATED SECTIONS
A. 31 00 00 Earthwork
B. 31 23 19 Dewatering
C. 31 40 00 Shoring and Underpinning

1.03 SUBMITTALS
A. The following shall be submitted by contractor in accordance with City Special Provision 01300, Submittals:

1. Product Data for the Hydrodynamic Separator

a. Product specifications to include but not limited to specification sheets, brochures, and performance claims.

b. Inspection and maintenance guidelines.

c. Submittal drawings shall be provided and annotated to indicate all materials to be used and applicable material standards, required tests of materials, and all design assumptions for structural analysis.

Details of steel reinforcing size and placement shall be submitted if professional engineering stamp and calculations are required by the customer. It is the responsibility of the project’s engineer-of- record to verify that the design assumptions are suitable for the proposed application.

2. Independent third-party certification or test report demonstrating conformance to applicable local or regional BMP standards before the treatment system is installed for the following, upon request:
a. Removal Efficiency

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b. Targeted Pollutants of Concern
c. Hydraulic Capacity
d. Certification of adherence to applicable standard

1.04 SUBSTITUTIONS
A. No product substitutions for stormwater treatment equipment shall be accepted unless submitted 10 working days prior to project bid date, or as directed by the Engineer of Record. Submissions for substitutions require review and approval by the Engineer of Record, for hydraulic performance, impact to project designs, equivalent treatment performance, and any required project plan and report (hydrology/hydraulic, water quality, stormwater pollution) modifications that would be required by the approving jurisdictions/agencies.

1.05 QUALITY ASSURANCE
A. All components shall be subject to inspection by the engineer at the place of manufacture and/or installation. All components are subject to being rejected or identified for repair if the quality of materials and manufacturing do not comply with the requirements of this specification. Components which have been identified as defective may be subject for repair where final acceptance of the component is contingent on the discretion of the Engineer.

B. Manufacturer Qualifications

1. The manufacturer of the SWTD shall be one that is regularly engaged in the engineering design and production of systems deployed for the treatment of storm water runoff for at least five (5) years and which have a history of successful production, acceptable to the Engineer.

C. Precast Qualifications and Quality Control

1. See Section 03 40 00 – Precast Concrete

1.06 DELIVERY STORAGE AND HANDLING
A. All treatment system components shall be delivered to the site and unloaded with handling that conforms to the manufacturer’s instructions for reasonable care.

Concrete and internal components shall not be rolled or dragged over gravel or rock during handling. The contractor shall take necessary precautions to ensure the method used in lifting or placing the treatment system does not induce stress fatigue in the concrete.

B. The contractor shall exercise care in the storage and handling of the SWTD components prior to and during installation. Any repair or replacement costs associated with events occurring after delivery is accepted and unloading has commenced shall be borne by the contractor.

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1.07 WARRANTY
A. The manufacturer shall guarantee the SWTD components against all manufacturer originated defects in materials or workmanship for a period of twelve (12) months from the date the components are delivered to the owner for installation. The manufacturer shall upon its determination repair, correct or replace any manufacturer originated defects advised in writing to the manufacturer within the referenced warranty period.

The use of SWTD components shall be limited to the application for which it was specifically designed.

PART 2 PRODUCTS

2.01 DESCRIPTION
A. The treatment system is an offline system, housed in a precast concrete vault structure. The treatment system shall provide hydrodynamic separation with sedimentation chambers to remove sediment; screening system to remove trash and debris. The treatment system must include the capability to provide sufficient sump depth and detention time to facilitate sedimentation without resuspension during high flows or utilize an offline configuration with a bypass. The treatment system must provide the capability to remove all particles larger than 5 mm.

B. The manufacturer selected by the contractor and approved by the Engineer, shall furnish all labor, materials, equipment and incidentals required and install all precast concrete stormwater treatment systems and appurtenances in accordance with the drawings and these design criteria.

2.02 MATERIALS AND DESIGN
A. Housing unit of stormwater treatment device shall be constructed of pre-cast or cast-in- place concrete. Precast concrete components shall conform to Section 03 40 00 – Precast Concrete or Section 03 40 and the following:

1. Unless otherwise noted, the precast concrete sections shall be designed to withstand lateral earth and AASHTO H-20 traffic loads

2. Sections shall have tongue and groove or ship-lap joints with a butyl mastic sealant conforming to ASTM C 990.

B. Internal Components and appurtenances shall conform to the following:

1. Screen and support structure shall be manufactured of Type 316 and 316L stainless steel conforming to ASTM F 1267-01.

2. Hardware shall be manufactured of Type 316 stainless steel conforming to ASTM A 320.

3. Fiberglass components shall conform to applicable sections of ASTM D-4097.

4. Manhole castings shall be designed to withstand AASHTO H-20 loadings and manufactured of cast-iron conforming to ASTM A 48 Class 30.

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2.03 PERFORMANCE
A. Each specified flow-based stormwater treatment system shall be listed on the California Certified Full Capture System (FCS) approved device list.

B. Each specified SWTD shall conform to the specifications listed in Table 2.1.

C. The SWTD shall be capable of capturing and retaining 100 percent of pollutants greater than or equal to 4.7 millimeters (mm) regardless of the pollutant’s specific gravity (i.e.: floatable and neutrally buoyant materials) for flows up to the device’s rated-treatment capacity. The SWTD shall be designed to retain all previously captured pollutants addressed by this subsection under all flow conditions. The SWTD shall be capable of capturing and retaining total petroleum hydrocarbons. The SWTD shall be capable of achieving a removal efficiency of 92 and 78 percent when the device is operating at 25 and 50 percent of its rated-treatment capacity. These removal efficiencies shall be based on independent third-party research for influent oil concentrations representative of storm water runoff (20 ± 5 mg/L). The SWTD shall be greater than 99 percent effective in controlling dry-weather accidental oil spills.

D. The SWTD shall be designed with a sump chamber for the storage of captured sediments and other negatively buoyant pollutants in between maintenance cycles.

The minimum storage capacity provided by the sump chamber shall be in accordance with the volume listed in Table 2.1. The boundaries of the sump chamber shall be limited to that which do not degrade the SWTD’s treatment efficiency as captured pollutants accumulate. The sump chamber shall be separate from the treatment processing portion(s) of the SWTD to minimize the probability of fine particle re- suspension. In order to not restrict the Owner’s ability to maintain the SWTD, the minimum dimension providing access from the ground surface to the sump chamber shall be 16 inches in diameter.

E. The SWTD shall be designed to capture and retain Total Petroleum Hydrocarbons generated by wet-weather flow and dry-weather gross spills and have a capacity listed in Table 2.1 of the required unit.

F. The SWTD shall convey the flow from the peak storm event of the drainage network, in accordance with required hydraulic upstream conditions as defined by the Engineer. If a substitute SWTD is proposed, supporting documentation shall be submitted that demonstrates equal or better upstream hydraulic conditions compared to that specified herein. This documentation shall be signed and sealed by a Professional Engineer registered in the State of the work. All costs associated with preparing and certifying this documentation shall be born solely by the Contractor.

Table 2.1
Maximum
SWTD Size
(Diameter,
ft)
Maximum
Diversion
Weir
Structure
Size (ft x ft)
Inlet Pipe
Diameter
(in)
Minimum
Sump
Storage
Capacity
(yd3)
Minimum
Particle
Capture
Size
(mm)
Minimum
Treatment
Capacity
(cfs)
Hydraulic
Capacity
(cfs)
12 12 x 18 84 16.8 5 70 225

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G. The SWTD shall have completed field tested following Technology Acceptance Reciprocity Partnership (TARP) Tier II protocol requirements H. The SWTD shall be certified under WA Ecology TAPE protocol with GULD for pre- treatment.

2.04 MANUFACTURER
A. Each CDS hydrodynamic separation unit shall be a CDS 9290-12F as manufactured by Contech Engineered Solutions LLC or equal.

PART 3 EXECUTION

3.01 EXCAVATION, DEWATERING AND SHORING
A. The contractor shall excavate, dewater and shore in accordance with the applicable project specifications for 31 00 00 Earthwork, 31 23 19 Dewatering, 31 40 00 Shoring and Underpinning as provided by the engineer to ensure a safe working environment.

B. The contractor shall be responsible for measuring the actual height of the precast concrete components delivered to the site prior to installing any portion of the CDS unit to verify the required depth of excavation below pipe invert matches the depth given on the project specific contract drawing.

C. Excavation size shall be large enough to allow access around the structure after it is installed.

3.02 SUB-GRADE PREPARATION
A. Once site is excavated to the correct depth, compact the undisturbed sub-grade materials to 95% of maximum density at +/-2% of optimum moisture content prior to placement of crushed rock. The crushed rock subgrade material shall be composed to withstand a design loading of 2,000 pounds per square foot (psf). It is recommended that the hole be over-excavated a minimum of 12" and backfilled with aggregate base and compacted to 95% to make subgrade.

3.03 INSTALLATION
A. The SWTD shall be installed in accordance with the manufacturer’s recommendations and related sections of the contract documents. The manufacturer shall provide the contractor installation instructions and offer on-site guidance during the important stages of the installation as identified by the manufacturer at no additional expense. A minimum of 72 hours notice shall be provided to the manufacturer prior to their performance of the services included under this subsection.

B. Precast concrete units shall be installed: to the lines and grades shown on the contract documents or otherwise specified; be lifted by suitable lifting devices at points provided by the precast concrete producer; in accordance with applicable industry standards.

C. The contractor shall fill all voids associated with lifting provisions provided by the manufacturer. These voids shall be filled with non-shrinking grout providing a finished surface consistent with adjacent surfaces. The contractor shall trim all protruding lifting

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provisions flush with the adjacent concrete surface in a manner, which leaves no sharp points or edges.

D. Precast concrete unit’s end use, joint sealant, pipe-entry connectors and other penetrations shall be sealed according to manufacturer’s requirements to ensure the integrity of the system.

E. The contractor shall removal all loose material and pooling water from the SWTD prior to the transfer of operational responsibility to the Owner.

3.04 BACKFILLING AND RESTORATION
A. See section 31 00 00 Earthwork for backfill requirements

3.05 FIELD QUALITY CONTROL
A. Inspection – Final field elevations and compaction properties shall be verified and documented
B. Supplier’s certification – The SWTD manufacturer shall submit to the Engineer of Record a “Manufacturer’s Performance Certification” certifying that each SWTD is capable of achieving the specified removal efficiencies listed in these specifications.

The certification shall be supported by independent third-party research

END OF SECTION

WG 1011-0003-41 OIL AND STORMWATER SEPARATORS October 2024 City of Hollister IWTP/Bridge Rd
Stormwater Improvements Page 33 44 36-1 REV-A

SECTION 33 44 36

OIL AND STORMWATER SEPARATORS
PART 1 GENERAL

1.01 SUMMARY
A. This section includes specifications for a stormwater hydrodynamic separator to be installed in-line with 60” diameter reinforced concrete pipe (RCP).

B. The Contractor shall furnish all labor, equipment and materials necessary to install the storm water treatment device (SWTD) and appurtenances specified in the Drawings and these specifications.

1.02 RELATED SECTIONS
A. 31 00 00 Earthwork
B. 31 23 19 Dewatering
C. 31 40 00 Shoring and Underpinning

1.03 SUBMITTALS
A. The following shall be submitted by contractor in accordance with City Special Provision 01300, Submittals:

1. Product Data for the SWTD

a. Product specifications to include but not limited to specification sheets, brochures, and performance claims.

b. Inspection and maintenance guidelines.

c. Submittal drawings shall be provided and annotated to indicate all materials to be used and applicable material standards, required tests of materials, and all design assumptions for structural analysis. Details of steel reinforcing size and placement shall be submitted if professional engineering stamp and calculations are required by the customer. It is the responsibility of the project’s engineer-of-record to verify that the design assumptions are suitable for the proposed application.

2. Independent third-party certification or test report demonstrating conformance to applicable local or regional BMP standards before the treatment system is installed for the following, upon request:
a. Removal Efficiency
b. Targeted Pollutants of Concern

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c. Hydraulic Capacity
d. Certification of adherence to applicable standard

1.04 SUBSTITUTIONS
A. No product substitutions for stormwater treatment equipment shall be accepted unless submitted 10 working days prior to project bid date, or as directed by the Engineer of Record. Submissions for substitutions require review and approval by the Engineer of Record, for hydraulic performance, impact to project designs, equivalent treatment performance, and any required project plan and report (hydrology/hydraulic, water quality, stormwater pollution) modifications that would be required by the approving jurisdictions/agencies.

1.05 QUALITY ASSURANCE
A. All components shall be subject to inspection by the engineer at the place of manufacture and/or installation. All components are subject to being rejected or identified for repair if the quality of materials and manufacturing do not comply with the requirements of this specification. Components which have been identified as defective may be subject for repair where final acceptance of the component is contingent on the discretion of the Engineer.

B. Manufacturer Qualifications

1. The manufacturer of the SWTD shall be one that is regularly engaged in the engineering design and production of systems deployed for the treatment of storm water runoff for at least five (5) years and which have a history of successful production, acceptable to the Engineer.

C. Precast Qualifications and Quality Control

1. See Section 03 40 00 – Precast Concrete

1.06 DELIVERY STORAGE AND HANDLING
A. All treatment system components shall be delivered to the site and unloaded with handling that conforms to the manufacturer’s instructions for reasonable care.

Concrete and internal components shall not be rolled or dragged over gravel or rock during handling. The contractor shall take necessary precautions to ensure the method used in lifting or placing the treatment system does not induce stress fatigue in the concrete.

B. The contractor shall exercise care in the storage and handling of the SWTD components prior to and during installation. Any repair or replacement costs associated with events occurring after delivery is accepted and unloading has commenced shall be borne by the contractor.

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1.07 WARRANTY
A. The manufacturer shall guarantee the SWTD components against all manufacturer originated defects in materials or workmanship for a period of twelve (12) months from the date the components are delivered to the owner for installation. The manufacturer shall upon its determination repair, correct or replace any manufacturer originated defects advised in writing to the manufacturer within the referenced warranty period.

The use of SWTD components shall be limited to the application for which it was specifically designed.

PART 2 PRODUCTS

2.01 DESCRIPTION
A. Function - The SWTD is a pre-engineered inline hydrodynamic separation system composed of multiple sediment removal chambers, a screening system designed to capture and store solid debris such as foliage and litter in a dry state above the static water line, and an oil skimmer to capture oils, grease, and other hydrocarbons.

B. The manufacturer selected by the contractor and approved by the Engineer, shall furnish all labor, materials, equipment and incidentals required and install all precast concrete stormwater treatment systems and appurtenances in accordance with the drawings and these design criteria.

2.02 MATERIALS AND DESIGN
A. Concrete – Housing unit of stormwater treatment device shall be constructed of cast-in- place concrete in accordance with Section 03 30 00 or pre-cast concrete in accordance with Section 03 40 00. For precast stormwater treatment systems shall conform the following additional requirements:

1. The wall thickness shall not be less than 6 inches (152 mm) or as shown on the dimensional drawings. Unless otherwise noted, the precast concrete sections shall be designed to withstand lateral earth and AASHTO H-20 traffic loads

2. Sections shall have tongue and groove or ship-lap joints with a butyl mastic sealant conforming to ASTM C 990.

3. Pipe openings shall be sized to accept pipes of the specified size(s) and material(s), and shall be sealed by the Contractor with a hydraulic cement conforming to ASTM C 595M or ASTM C1107.

B. Internal Components and appurtenances shall conform to the following:

1. Screen Frame shall be constructed of 100% stainless steel. All joints and seams are to be welded or fastened together with stainless steel hardware. All sides of screen frame shall be fixed. The top section of the screen frame shall have one of the following, open top, hinged top section, or a track guided sliding top section per drawings. The bottom section of the basket frame shall be a minimum of 3" above static water level.

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2. Screens shall be manufactured of 100% louver expanded stainless steel grade 304. The screen shall be capable of capturing and retaining 100 percent of pollutants greater than or equal to 4.7 mm regardless of specific gravity for flows up to the device’s rated treatment capacity. Screens shall have openings that face opposite the flow of passing stormwater to provide continuous shielding and prevent clogging.

3. Turbulence Deflectors shall be manufactured of 100% marine grade polyester resin and fiberglass strands or stainless steel and be mounted to the concrete baffles with stainless steel hardware. The turbulence deflectors should be sized to effectively eliminate scouring and re-suspension of previously captured sediments in the sediment removal chambers and creates a flow pattern that encourages suspended solids in influent flows to settle out and accumulate at the bottom of the SWTD.

4. The all-fiberglass deflectors must be coated with a polyester gel coating with ultra violet inhibitors incorporated into the coating for maximum ultra violet protection. Fiberglass must have a minimum thickness of 3/16”.

5. Manhole castings shall be designed to withstand AASHTO H-20 loadings and manufactured of cast-iron conforming to ASTM A 48 Class 30.

2.03 PERFORMANCE
A. Each specified SWTD shall conform to the specifications listed in Table 2.1.

Table 2.1
Maximum
Structure
Size
(ft x ft)
Pipe
Diameter
(in)
Minimum
Sediment
Storage Capacity
(cu-ft)
Minimum
Particle
Capture
Size (mm)
Minimum
Treatment
Capacity
(cfs)
Hydraulic
Capacity
(cfs)
12x20 60 90 5 40 170
A. The SWTD shall be listed on the California Certified Full Capture System (FCS) approved device list.The stormwater treatment system shall be completely housed within one structure.

B. Removal Efficiencies - The SWTD must be capable of capturing and retaining 100% of all trash or debris equal to or greater than 4.7 mm. The SWTD shall not release material during flow events greater than the design flow rate.

C. Hydraulic Capacity - The SWTD shall provide a rated hydraulic capacity listed in Table

2.1. The hydraulic capacity must be supported by independent third-party lab testing of the screen material. The lab testing must be done over a range of 5 flows and the water height and head loss recorded to create a curve. Sizing of the screens treatment flow capacity must be based upon the orifice coefficient related to the independent lab testing.

D. Storage Capacity - The SWTD must have multiple sediment removal chambers for storage of sediments and other non-floatable pollutants. The volume of each sediment removal chamber shall be called out on the submittal drawings. The SWTD must have an oil skimmer to capture hydrocarbons. The skimmer shall be equipped with storm booms

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E. Pollution Separation - The SWTD must be equipped with a screening system capable of capturing and storing solid debris such as foliage and litter in a dry state above the static water line. The debris captured by the screening system Storm Water Treatment Device Page 4 of 5 must be stored a minimum of 3.5" above the static water line. The screening system must be located directly under the systems access hatch(s) or frame & covers to allow easy maintenance and removal of captured debris.

2.04 MANUFACTURER
A. Each stormwater treatment system shall be a Debris Separating Baffle Box (DSBB) manufactured by Contech or a Hydro DyScreenTM Manufactured by Old Castle.

PART 3 EXECUTION

3.01 EXCAVATION, DEWATERING AND SHORING
A. The contractor shall excavate, dewater and shore in accordance with the applicable project specifications for 31 00 00 Earthwork, 31 23 19 Dewatering, 31 40 00 Shoring and Underpinning as provided by the engineer to ensure a safe working environment.

B. The contractor shall be responsible for measuring the actual height of the precast concrete components delivered to the site prior to installing any portion of the CDS unit to verify the required depth of excavation below pipe invert matches the depth given on the project specific contract drawing.

C. Excavation size shall be large enough to allow access around the structure after it is installed.

3.02 SUB-GRADE PREPARATION
A. Once site is excavated to the correct depth, compact the undisturbed sub-grade materials to 95% of maximum density at +/-2% of optimum moisture content prior to placement of crushed rock. The crushed rock subgrade material shall be composed to withstand a design loading of 2,000 pounds per square foot (psf). It is recommended that the hole be over-excavated a minimum of 12" and backfilled with aggregate base and compacted to 95% to make subgrade.

3.03 INSTALLATION
A. The SWTD shall be installed in accordance with the manufacturer’s recommendations and related sections of the contract documents. The manufacturer shall provide the contractor installation instructions and offer on-site guidance during the important stages of the installation as identified by the manufacturer at no additional expense. A minimum of 72 hours notice shall be provided to the manufacturer prior to their performance of the services included under this subsection.

B. Precast concrete units shall be installed: to the lines and grades shown on the contract documents or otherwise specified; be lifted by suitable lifting devices at points provided by the precast concrete producer; in accordance with applicable industry standards.

C. The contractor shall fill all voids associated with lifting provisions provided by the manufacturer. These voids shall be filled with non-shrinking grout providing a finished surface consistent with adjacent surfaces. The contractor shall trim all protruding lifting

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provisions flush with the adjacent concrete surface in a manner, which leaves no sharp points or edges.

D. Precast concrete unit’s end use, joint sealant, pipe-entry connectors and other penetrations shall be sealed according to manufacturer’s requirements to ensure the integrity of the system.

E. The contractor shall removal all loose material and pooling water from the SWTD prior to the transfer of operational responsibility to the Owner.

3.04 BACKFILLING AND RESTORATION
A. See section 31 00 00 Earthwork for backfill requirements

3.05 FIELD QUALITY CONTROL
A. Inspection – Final field elevations and compaction properties shall be verified and documented
B. Supplier’s certification – The SWTD manufacturer shall submit to the Engineer of Record a “Manufacturer’s Performance Certification” certifying that each SWTD is capable of achieving the specified removal efficiencies listed in these specifications.

The certification shall be supported by independent third-party research

END OF SECTION

WG 1011-0003-41 FIBERGLASS-REINFORCED PLASTIC SLIDE GATES October 2024 City of Hollister IWTP/Bridge Rd
Stormwater Improvements Page 40 05 59.26-1 REV-A
SECTION 40 05 59.26

FIBERGLASS-REINFORCED PLASTIC SLIDE GATES
PART 1 GENERAL

1.01 SUMMARY
A. This Section includes fabricated FRP Sluice and Stop Gates required for the complete installation of the work, at the City of Hollister Industrial Wastewater Treatment Plant (IWTP), San Benito County, California.

B. Type

1. Upward opening type.

2. Design gates and operators for isolating service.

3. Fabricated gates of FRP construction with sluices and guides provided by one manufacturer.

1.02 REFERENCES
A. Design, fabricate and test valves and materials in accordance with manufacturer’s recommended procedures and the following codes and standards:

1. ASTM A193 Stainless Steel Anchor Bolts

2. ASTM A276 - Stainless Steel Bars

3. ASTM B584 - Alloy 865 Manganese Bronze

4. ASTM D256 - Izod Impact Strength

5. ASTM D570 - Water Absorption Rate

6. ASTM D638 - Tensile Strength

7. ASTM D695 - Compressive Properties of Rigid Plastic

8. ASTM D696 - Coefficient of Linear Expansion

9. ASTM D790 - Flexural Properties

10. ASTM D792 - Density and Specific Gravity at 230 C

11. ASTM D1056 - Polymer Grade

12. ASTM D2563-0 Visual Defects

13. ASTM D2583 - Indentation Hardness

14. ASTM D2584 - Resin, Glass & Filler Content

15. AWWA C-563 Fabricated Composite Sluice Gates

16. AWWA C-540 Power Actuating Devices - Sluice Gates B. Composition of the gate laminate shall be in accordance with the recommendations shown in the Quality Assurance Report for Reinforced Thermoset Plastic (RTP) Corrosion Resistant Equipment prepared under the sponsorship of the Society of the Plastics Industry, Inc. (SPI), and the Material Technology Institute (MTI) of the Chemical Process Industry for “Hand Lay-UP Laminates,” and shall meet the specifications for Type I, Grade 10 laminates shown in Appendix M-1 of said report.

C. Manufacturer shall be experienced in the design and manufacture of specific gates and accessories for a minimum period of 5 years.

WG 1011-0003-41 FIBERGLASS-REINFORCED PLASTIC SLIDE GATES October 2024 City of Hollister IWTP/Bridge Rd
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D. Manufacturer shall have a qualified Engineer on staff with at least 5 years’ experience with hydraulic control gates.

1.03 SUBMITTALS
A. Submit the following for acceptance:

1. Approval Drawings

2. Showing all critical dimensions.

3. Showing principal parts and materials.

4. Spare parts list (when applicable).

1.04 DELIVERY, STORAGE AND HANDLING
A. Ship all gates with suitable packaging to protect products from damage.

B. Protect valve threads, flanges, stems and operators from damage.

1.05 WARRANTY
A. 12 months standard workmanship
B. 25 year warranty of gate materials and fasteners against corrosion PART 2 PRODUCTS

2.01 MATERIALS
A. Gate body shall be:

1. Engineered composite fiberglass reinforced plastic (FRP) completely encapsulating an internal steel reinforcing structure.
a. Infusion molded to create a seamless corrosion barrier impervious to moisture.
b. FRP
c. Internal Steel Reinforcing: Carbon Steel as needed for deflection requirements.
d. Internal Core Foam: 2lb polyisocyanurate closed cell rigid foam.

B. Guide Frame

1. Head Frame: FRP

2. Guide Frame Rails: FRP

3. Operator Support Yoke: FRP
C. Stems and Gate Hardware

1. Stem: Type T-316L stainless steel.

2. Gate Hardware: T-316L stainless steel.

D. Seals

1. Side, Top and Flush Bottom Seals: Hollow Bulb J Seal molded of extruded virgin EPDM.

E. J-Seal Clamping Bar and Fasteners

1. Clamping Bar: T-316L stainless steel.

WG 1011-0003-41 FIBERGLASS-REINFORCED PLASTIC SLIDE GATES October 2024 City of Hollister IWTP/Bridge Rd
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2. Fasteners: T-316L stainless steel.

F. Lift Nuts and Thrust Nuts

1. Manganese Bronze, ASTM B-584, Alloy 865.

G. Thrust Collar

1. T-316L stainless steel.

H. Handwheel

1. Cast Iron, ASTM A-126, Class B.

I. Anchor Bolts

1. T-316L stainless steel.

J. Stem Cover

1. Butyrate (manual handwheel).

K. Stem Guides (When applicable)

1. Ultra high molecular weight polyethylene (UHMW)

2.02 SLUICE GATES
A. Acceptable Manufacturers:

1. Plasti-Fab Inc., or approved equal

B. Gates shall meet or exceed leakage rates specified in AWWA C-563:

1. Leakage:
a. Gates shall have a maximum leakage rate of 0.10 GPM per Wetted Foot of wetted linear seal under seating and unseating head pressures and shall provide adjustment to zero leakage.
b. Sluice gate shall be wedging and have adjusting bolts to allow for a zero leakage rate.

2.03 DESIGN CRITERIA
A. Composition of the sluice gate laminate shall be in accordance with the recommendations shown in the Quality Assurance Report for Reinforced Thermostat Plastic (RTP) Corrosion Resistant Equipment prepared under the sponsorship the Society of the Plastics Industry, Inc. (SPI) and the Material Technology Institute of the Chemical Process Industries, Inc. (MTI) for “Hand Lay-up Laminates” and shall meet the specifications for Type 1, Grade 10 laminates shown in Appendix M-1 of said report.

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1. Visual inspection for defects shall be made without the aid of magnification and defects shall be classified as to type and level as shown in Table 1 of ANSI/ASTM D2563-0, approved 2008, (or any subsequent revision). Allowable surface tolerances are as follows:

B. Maximum Fiber Stress

1. Ultimate shall not exceed 2.5 times the working stress.

C. Deflection

1. Deflection across the gate width shall be limited to: L/360 or ¼”, whichever is less, at the maximum operating head.

D. Head Pressure

1. Gate shall be designed for a maximum head pressure as indicated in the Gate Schedule measured from the gate invert to the high water level.

E. Surface Conditions

1. All sluice gate gates and seats shall be installed flat and level.

2. Warpage throughout the entire gate shall not produce a crown of more than 1/16” in any direction.

3. Gates having reinforcing members bolted or bonded to flat sheet stock will not be acceptable.

F. Sealed Area

1. Sluice gate shall seal on all four sides, or three sides if top of gate is not in contact with the frame.

DEFECTS ALLOWABLE TOLERANCE
Cracks
Crazing
Blisters
Chips
Pits
Dry Spots
Fish Eyes
Burned Areas
Entrapped Air
None
Wrinkles and solid blisters, not to
exceed 1/8”
Maximum Deviation: 10% of
thickness
Surface porosity (pinholes or
pores in the laminate surface)
None
Exposed Glass
Exposure of cut edges
None
Scratches None more than .002” deep
(.05mm)
Foreign Matter None

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G. Gate Schedule

Size(a)
(W x H), in Type(b) Open(c) Closure(d)
Design
Seating
Head, ft
Design Un-
Seating
Head, ft
Operator
Handle
Type(e) Comments
54” Dia Pipe W U J, FB 1 8 III
South Street
Diversion
Structure
Outlet
54” Dia Pipe W U J, FB 1 8 III
South Street
Diversion
Structure
Outlet
(a) Gate opening size, width x height. Sizes are approximate (b) Type Codes: W = wall mounted; S = self-contained; E = embedded frame (c) Opening Directions: U = upward; D = downward
(d) Bottom Seating: J= J-seal on invert; SA= self-adjusting seal; FB = flush bottom (e) Operators: II = gear drive w hand crank, frame mounted III = gear drive with hand wheel. frame mounted; IV = hand hole See Paragraph 3.01 for special installation requirements.

2.04 CONSTRUCTION
A. Gate Body

1. Sluice gate body shall be manufactured of fiberglass reinforced polyester totally encapsulating an internal reinforcing structure of carbon steel.

2. Each gate shall be infusion molded individually to the exact dimensions specified. Seams and joints in and on the body are not acceptable.

3. Sluice gates shall be manufactured of reinforced thermoset plastic.

4. Gate body shall have UV Stabilizing pigment in the Resin to provide long-term protection from UV.

5. The surface shall be resin rich to a depth of .010 inches to .020 inches and reinforced with C-glass and/or polymeric fiber surfacing material.

6. The surface shall be free of exposed reinforcing fibers.

7. The composition of these layers shall be approximately 95% (by weight) resin.

The remaining laminate shall be made up of copolymer composite and reinforcing fibers in a form, orientation and position to meet the mechanical requirements.

8. Structural reinforcing shall be utilized to attain the necessary stiffness to meet deflection requirements, and shall be well encapsulated with a laminate not less than 1/4” thick on each side to ensure against any permeation by water to the core areas.

9. A Type T-316L stainless steel stem mounting bracket shall fasten to the gate with through bolts. The through holes shall not pass through or be in contact with the internal mild steel reinforcing.

10. Core material shall be 100% resistant to decay and attack by fungus and bacteria and be resistant to hydrocarbons.

11. Gate body shall be one-piece, seamless and uniformly impenetrable by fluids.

Manufacturing techniques that employ adhesives, mechanical fasteners, or result in seams along vertical and horizontal axes of the gate body are not acceptable.

B. Seals

1. The gate shall be equipped with elastomeric seals to reduce leakage.

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2. Elastomeric J-seals shall be made of molded or extruded neoprene having a hardness range of 55 to 65 shore A durometer and conforming to ASTM spec.

D-2000 having a maximum compression set of 25%, and low temperature brittleness to meet suffix F-17 (-400).

3. Seals, including bottom seals, shall be mounted on gate covers with type T- 316L stainless steel cap screws and type T-316L stainless steel clamping bars thus providing a means of repair, and replacement without dewatering the channel.

4. Unless otherwise noted, specified gates shall be designed and manufactured with the seals mechanically affixed to the gate body, and not the guide frames.

When replacement of seals eventually becomes necessary (variables such as frequency of open-close cycles, chemical composition and abrasiveness of the fluid will ultimately determine the effective life of the seals) the gate shall be removable from the guide frame without de-watering the channel and, in a suitable work area, easily and economically refitted with new seals.

C. Frames and Guides

1. Guides shall be styled for wall mounting as shown on the contract drawings and/or gate schedule.

2. Guides shall be fabricated from FRP and shall have a slot suitable for mating with the gate body.

3. Where self-contained guides are extended above the operating floor level to form the bench stand upon which the lift mechanism is fastened, they must be suitably strong and rigid without the use of additional stiffening members.

4. The head rail shall be affixed so as to allow the gate to be removed from the guide without disassembly.

5. The head rail shall have a maximum deflection of 1/4” when subjected to a horizontal force of four times the 40 lb. maximum hand wheel pull.

6. Where a wall mounted guide frame extends above a concrete wall the top anchor bolt shall be not more than 6” below the top of the wall.

7. Gate inverts shall be flush with the channel bottom.

8. Guides to be bolted to the head wall shall be equipped with heavy duty mounting angle for ease of mounting to the channel wall by means of Type 316L stainless steel anchor bolts.

9. No wall thimbles shall be required for installation.

D. Adjustable Wedging Device

1. Gates shall be fitted with an adjustable wedging assembly comprised of a Type 316L stainless steel wedging bar and silicon bronze adjusting bolts with locking nuts. The adjusting bolts shall be non-galling for long-term easy adjustment.

Gate wedging assembly shall be initially adjusted at the factory; however, they shall be easily adjusted to achieve the specified leakage rate.

E. Lifts & Operators

1. Operators shall be sized to start the gate moving under a maximum head pressure with a pull of not more than 40 lbs.

2. Manual Gate Operators
a. Furnish per Gate Schedule 2.03 G
b. Provide handwheel or hand crank as scheduled.

3. Hand Crank Operators
a. Geared type designed to allow operation of gate under the specified design hydraulic head condition with a maximum effort of 40 pound pull on the crank.

WG 1011-0003-41 FIBERGLASS-REINFORCED PLASTIC SLIDE GATES October 2024 City of Hollister IWTP/Bridge Rd
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b. Enclose gears and bearings in a weatherproof housing with pressure fittings for grease lubrication. Construct pinion shaft of crank operated mechanisms of stainless steel and support by roller or needle bearings. c. Crank Handles: Removable from the operator, and fitted with a corrosion resistant rotating handle. Maximum crank radius: 15 inches.

F. Operating Stems

1. Each gate shall be equipped with a rising operating stem. The stem shall be Type 316L stainless steel stainless steel.

2. The stem will have Acme threads and shall be provided with adjustable stop collars to limit upward and downward travel.

3. Stems shall have a maximum L/R of 200.

4. Stem guides with bronze or FRP bushings shall be used to maintain an L/R of 200.

G. Stem Covers

1. Transparent plastic stem covers shall be provided with vent holes to minimize condensation.

2. The stem covers shall be marked with `Open’ and `Closed’ position indicators.

2.05 PHYSICAL PROPERTIES
A. Structural characteristics for a 1/8” (3mm) glass mat laminate shall meet the following minimum physical properties:

B. Seals: Extruded EDPM Seals shall have the following physical characteristics:

Specific Gravity 1.25
Hardness 55 – 65 Shore A
Durometer
Tensile Strength 1500 psi min. (0.07ksc)
Elongation 300%
Low temperature brittleness - 40

Tensile strength 15,000 psi (1034 ksc)
Flexural Modulus 900,000 psi (70307 ksc)
Flexural Strength 20,000 psi (1406 ksc)
Compressive Strength 20,000 psi (1547 ksc)
Impact Strength 9.0 ft-lbs/in. (1.24
kgf.m/25mm)
Water absorption 0.12% (in 24 hours)

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C. Wear Strips UHMW Polyethylene:

PART 3 EXECUTION

3.01 INSTALLATION
A. Exercise special care in the forming and pouring of pipes and walls where sluice gates will be installed.

1. Construct wall surfaces straight and plumb, per the requirements of Section 03 30 00 to permit proper installation of the gate.

2. The bottom of sluice gate shall be recessed into an invert block-out so that the invert of the sluice gate is flush with the bottom of the structure. The transition between the bottom of the structure, sluice gate invert and pipe invert shall be flush and smooth. The invert block-out shall be provided by as part of the precast structure of cut in by the contractor during installation.

3. When setting the gate into the invert block-out and the seal between the gate frame and the wall surface, use non-shrink grout.

4. Install the grout seal between the gate frame and the wall surface in accordance with the written recommendations of the seal material manufacturer and the gate manufacturer. Make seal between the gate frame and the wall surface watertight.

B. Thoroughly clean and remove all shipping materials prior to setting.

C. Install gates per Manufacturer’s recommendations, flat, level and plumb.

D. Operate all gates from fully opened to totally closed.

3.02 FIELD TESTING
A. Installed gates shall meet or exceed manufacturers specification for leakage rate per section 2.02B.

END OF SECTION

Tensile Strength 5,600 psi (0.7kg/cm2)
Flexural Modulus @ 730F
(230C)
130,000 – 140,000 psi
(9140 – 9843kg/cm2)
Coefficient of Friction 0.15
Water Absorption 0.01% in 24 hours

WG 1011-0003-41 INLINE CHECK VALVES October 2024
City of Hollister IWTP/Bridge Rd
Stormwater Improvements Page 40 05 71.13-1 REV-A
SECTION 40 05 71.13

INLINE CHECK VALVES
PART 1 GENERAL

1.01 SUMMARY
A. This section includes providing duckbill check valves on existing and new process piping as shown on the drawings.

1.02 SUBMITTALS
A. Submit product literature that includes information on the performance and operation of the valve, materials of construction, dimensions and weights, elastomer characteristics, head loss, flow data and pressure ratings.

B. Provide shop drawings that clearly identify the valve materials of construction and dimensions.

C. List of references required in Paragraph 1.03.B.

D. Test results from independent hydraulic testing in determining headloss, jet velocity and vertical opening height characteristics, per Paragraph 1.03.C.

1.03 QUALITY ASSURANCE
A. Supplier shall have at least five (5) years experience in the design and manufacture of Redvalve “CheckMate™” style elastomeric check valves or equal.

B. Manufacturer shall have designed, fabricated and have at least three (3) current installations of a “CheckMate” style elastomeric check valves or approved equal in the 60” (1800mm) size. Manufacturer must provide documentation, including project name, location, and references.

C. Manufacturer shall have conducted independent hydraulic testing to determine head loss, jet velocity and vertical opening height characteristics. This testing shall have been conducted for free discharge (pressurized and open channel flow discharging to atmosphere) and submerged conditions.

1.04 DELIVERY, STORAGE AND HANDLING
A. Ship all check valves with suitable packaging provided by the Manufacturer to protect products from damage.

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City of Hollister IWTP/Bridge Rd
Stormwater Improvements Page 40 05 71.13-2 REV-A

PART 2 PRODUCTS

2.01 CONSTRUCTION
A. Check valves shall be all rubber and of the flow operated check type with slip-in cuff connection. The entire valve shall be ply reinforced throughout the body, saddle and bill, which is cured and vulcanized into a one-piece unibody construction. A separate valve body or pipe used as the housing is not acceptable.

B. The port area of the saddle shall contour into a circumferential sealing area (the “bill”) that is concentric with the pipe which shall allow passage of flow in one direction while preventing reverse flow.

C. The saddle area of the valve must be flat, not conical, and integral with the rubber body above centerline in order to not produce any areas or voids that can collect or trap debris.

D. The valve shall incorporate multiple concave grooves molded integrally into the flat saddle wall thickness extending longitudinally a minimum of 80% of the length of the saddle to reduce opening resistance and reduce headloss.

E. The valve shall be designed to resist cracking under the weight of the valve.

F. The entire valve shall fit within a 60” diameter RCP. The valve must be easily installed in pipes with poor end condition without the need to modify or utilize the headwall or structure to seal and anchor the valve. Once installed, the valve shall not protrude beyond the face of the structure or end of the pipe.

G. Company name, plant location, valve size patent number, and serial number shall be bonded to the check valve.

2.02 MANUFACTURER
A. All valves shall be Series CMUF-SL slip-in CheckMate Ultraflex Valves as manufactured by Tideflex Technologies®, A Division of Red Valve Company, Carnegie, PA 15106; or approved equal. All valves shall be manufactured in the U.S.A.

Gates shall meet or exceed leakage rates specified in AWWA C-563:

2.03 DESIGN CRITERIA
A. When line pressure exceeds the backpressure, the line pressure forces the bill and saddle of the valve open, allowing flow to pass. When the backpressure exceeds the line pressure, or in the absence of any upstream or downstream pressure, the bill and saddle of the valve is forced closed, preventing backflow.

B. Flow:

1. Valve shall be able to pass 167 cfs when fully open.

2. Manufacturer must have flow test data from an accredited hydraulics laboratory to confirm pressure drop and hydraulic data.

C. Back Pressure

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1. Valve shall be able to handle a maximum back pressure of 15 feet.

D. Head Loss

1. Head loss across the valve shall not exceed 2.5 feet at 167 cfs PART 3 EXECUTION

3.01 INSTALLATION
A. Valve shall be installed in accordance with manufacturer’s written Installation and Operation Manual and approved submittals. Thoroughly clean and remove all shipping materials prior to setting.

3.02 FIELD TESTING
A. Manufacturer’s authorized representative shall be available for customer service during installation and start-up, and to train personnel in the operation, maintenance and troubleshooting of the valve.

B. If specified, the manufacturer shall also make customer service available directly from the factory in addition to authorized representatives for assistance during installation and start-up, and to train personnel in the operation, maintenance and troubleshooting of the valve.

END OF SECTION

WG 1011-0003-41 SUSPENDED LIQUID PUMPS October 2024
City of Hollister IWTP/Bridge Rd
Stormwater Improvements Page 43 24 00 - 1 REV-A

SECTION 43 24 00

SUSPENDED LIQUID PUMPS

GENERAL

1.01 DESCRIPTION
A. Furnish two (2) 6,000 gpm vertical axial flow pumping units, complete with motors, baseplates, couplings and guards, as shown on the Contract Drawings and as specified herein.

1.02 SUBMITTALS
A. Submit the following in accordance with City Special Provisions Section 01300, Submittals shall include the following:

1. Certified dimensional drawings of each item of equipment and auxiliary apparatus to be furnished, including equipment weights and location and size of anchor bolts.

2. Literature and drawings describing the equipment, including parts list and materials of construction, in sufficient detail to indicate full conformance with the detail specifications.

3. Motor performance data, wiring diagrams, one-lines and conduit entry dimensions and details. Other submittals as required by Division 26.

4. Cut sheets on accessory items.

5. Manufacturer's certified rating curves, to satisfy the specified design conditions, showing pump characteristics of discharge, head, brake horsepower, efficiency and net positive suction head required (NPSHR).

Variable speed curves shall be provided showing at least three speeds plotted equally from maximum rpm to minimum rpm. Minimum rpm shall be no less than that required to obtain minimum flow. Curves shall show the full recommended range of performance and include shut off head.

This information shall be prepared specifically for the pump proposed.

6. Operations and Maintenance Data. Complete operating and maintenance instructions shall be furnished for all equipment specified in this Section.

The maintenance instructions shall include troubleshooting data and full preventative maintenance schedules and complete spare parts lists with ordering information. Include certified performance data and curves from factory tests.

1.03 QUALITY ASSURANCE
A. To assure unity of responsibility, the motors, couplings, guards and supporting base shall be furnished by the pump manufacturer. All pumping units specified herein shall be furnished by a single manufacturer.