Specs_Pt.8.pdf

Standard Specifications Polyvinyl Chloride Pipe

Revised January 2016 33 11 00.11-3 required to provide independent third party certification for joint testing each diameter of storm sewer pipe.

J. Purpose of Tests. Flattening and pipe stiffness tests are intended to be routine quality control tests. Joint tightness test is intended to qualify pipe to specified level of performance.

2.03 SANITARY SEWER FORCE MAIN PIPE

A. PVC sanitary sewer force main pipe shall be green in color. Provide approved PVC pressure pipe conforming to requirements for water service pipe, and conforming to minimum working pressure rating specified in Section 33 34 00 - Sanitary Sewer Force Mains.

B. Acceptable pipe joints are integral bell-and-spigot, containing a bonded-in elastomeric sealing ring meeting requirements of ASTM F477. In designated areas requiring restrained joint pipe and fittings, use approved joint restraint device conforming to UNI-B-13, for PVC pipe 12-inch diameter and less.

C. Fittings: Provide ductile iron fittings as per Section - Ductile Iron Pipe and Fittings, except furnish fittings with one of following approved internal linings:

1. Nominal 40 Mils (35 Mils minimum) virgin polyethylene complying with ASTM D 1248, heat fused to interior surface of fitting

2. Nominal 40 Mils (35 Mils minimum) polyurethane

3. Nominal 40 Mils (35 Mils minimum) ceramic epoxy

4. Nominal 40 Mils (35 Mils minimum) fusion bonded epoxy

D. Exterior Protection: Provide polyethylene wrapping of ductile-iron fittings as required by Section 33 11 00.17 - Polyethylene Wrap.

E. Hydrostatic Tests: Hydrostatically test pressure rated pipe in accordance with Specifications.

2.04 RECEIVING, HANDLING AND STORAGE

A. Inspect pipe and appurtenances for defects prior to installation in the trench. Set aside and clearly mark defective, damaged or unsound material and hold material for inspection by AW.

B. Load and unload all materials in accordance with the manufacturer’s recommendations and in such a manner as to prevent damage. Do not drop pipe and accessories or handle them in a rough manner.

C. Provide safe storage for all materials. Cover stored pipe that will be exposed to sunlight for periods longer than 6 months. Cover with canvas or other opaque material with provision for adequate air circulation. PVC pipe shall not be stored close to heat sources, such as heaters, boilers, steam lines, or engine exhaust.

Revised January 2016 33 11 00.11-4

PART 3: EXECUTION

3.01 INSTALLATION

Follow the provisions of Section - Piping - General Provisions, and Sanitary Sewer Force Mains in addition to the following requirements:

A. Remove all dirt and foreign matter from pipe before lowering it into the trench. Do not place debris, hand tools, clothing or other materials in the pipe. Keep pipe clean during and after laying.

B. Lay pipe with the bell end pointing in the direction of work progress. Do not roll, drop or dump pipe or appurtenances into the trench.

C. Assemble push-on joints in accordance with the pipe manufacturer’s recommendations. Assemble mechanical joints in accordance with the fitting manufacturer’s recommendations.

D. Cut pipe with pipe saws, circular saws, handsaws, or similar equipment. Provide a smooth end at a right angle to the longitudinal axis of the pipe. Deburr, bevel, and re-mark insertion line on spigot ends. Match factory bevel length and angle for field bevels. When connecting to certain shallow depth bells, such as those on some cast iron fittings and valves, cut off the factory bevel and prepare a deburred, square cut end with a slight outer bevel.

E. Clean the sealing surface of the spigot end, the pipe bell, the coupler or fitting, and the elastomeric gaskets immediately before assembly. Do not remove factory installed gaskets for cleaning. Keep the joint free of dirt, sand, grit, grease or any foreign material. Apply approved lubricant when assembling gasketed joints in accordance with the pipe manufacturer’s requirements. The use of improper lubricants can damage gaskets. Excessive lubricant use can make disinfection more difficult and cause taste and odor problems when the line is placed in service.

F. Good pipe alignment is essential for proper joint assembly. Align the spigot to the bell and insert the spigot into the bell until it contacts the gasket uniformly. Do not swing or “stab” the joint; that is, do not suspend the pipe and swing it into the bell. The spigot end of the pipe is marked by the manufacturer to indicate the proper depth of insertion. Avoid metal to plastic contact with the pushing the pipe home (use wood or other material to cushion moving the pipe.

G. Assemble pipe using the following types of joints:

1. Gasketed bell joint – Integral with the pipe or fitting

2. Gasketed coupling – A double gasketed coupling

3. Mechanical joint – Any of the several joint designs that have gaskets and bolts manufactured in accordance with AWWA standards.

Revised January 2016 33 11 00.11-5

H. Tracer Wire

1. Place tracer wire in accordance with Section - Tracer Wire.

2. The wire shall be contiguous except at test stations, valve boxes, and where splicing is required. All splices shall be encased with a 3M-Gel Pack Model No. 054007-09053, or approved equal.

I. All pressure and leakage testing shall be done in accordance with Specification Section 33 01 10.13 – Pressure and Leakage Tests

J. PVC pipe fittings shall employ ductile iron pipe fittings per Specifications 15105.

See detail drawings for transitions between different pipe materials.

K. Gaskets - Gaskets shall be as provided or recommended by the manufacturer and satisfy AWWA standard C111 in all respects. Where ductile iron pipe and PVC pipe are directly connected, the appropriate gasket material for this purpose shall be employed. As noted in the products section of this specification, some gasket materials are prone to permeation of certain hydrocarbons which may exist in the soil (see Part 2). Under these conditions and at the discretion of AW’s Project Manager, Contractor shall require contractor to provide FKM (Viton, Flourel) gasket material in areas of concern.

3.02 SERVICE CONNECTIONS

A. Install service connections in accordance with AWWA Standard C605 and the manufacturer’s recommendations using the following methods:

1. Tapping is only permitted through the use of service clamps or saddles.

2. Using injection molded couplings with threaded outlets.

3. Tapping with large service connections through appropriately sized tapping sleeves and valves.

4. Direct tapping of 1-inch and smaller service connections is not permitted.

Use service saddles only for AWWA Standard C900 pipe, for nominal pipe sizes 6-inch through 12-inch. Corporation stops shall be threaded and conform to AWWA Standard C800.

5. The distance between the PVC pipe joint and a service tap (2-inchs and smaller) shall be a minimum of 3 feet. The distance between the PVC pipe joint and a service tap (4-inchs and larger) shall be a minimum of 4 feet. Where necessary, excavate along the pipe to confirm the acceptable distance before starting the tap.

END OF SECTION 33 11 00.11

Gravity Sanitary Sewers

Revised June 2013 33 31 00.11-1

SECTION 33 31 00.11

GRAVITY SANITARY SEWERS

PART 1: GENERAL

1.01 SCOPE

A. Gravity sanitary sewers and appurtenances.

1.02 SUBMITTALS

A. Conform to requirements of Section 01 33 00 Submittals.

B. Submit proposed methods, equipment, materials and sequence of operations for sewer construction. Plan operations to minimize disruption of utilities to occupied facilities or adjacent property.

C. Test Reports: Submit test reports and inspection videos as specified in Part 3 of this Section. Videos become property of AW.

1.03 QUALITY ASSURANCE

A. Qualifications. Install sanitary sewer that is watertight both in pipe-to-pipe joints and in pipe-to-manhole connections. Perform testing in accordance with Section 33 01 30.12 - Acceptance Testing for Sanitary Sewers.

B. Regulatory Requirements.

1. Install sewer lines to meet minimum State mandated separation distance from potable water lines. Separation distance is defined as distance between outside of water pipe and outside of sewer pipe. Install new sanitary sewers no closer to water lines than 10 feet in all horizontal directions. Where water and sanitary sewer lines cross, a minimum vertical separation in accordance with State and/or local standards is required when the water line passes above the sanitary sewer main.

Where separation distance cannot be achieved, sanitary sewers shall be constructed of ductile iron sanitary sewer piping or encased in reinforced concrete (as detailed on the Drawings) for a minimum distance of 10 feet either side of the crossing.

2. Notify AW Project Manager immediately when water lines are uncovered during sanitary sewer installation where minimum separation distance cannot be maintained.

3. Lay gravity sewer lines in straight alignment and grade.

Revised June 2013 33 31 00.11-2

1.04 PRODUCT DELIVERY, STORAGE, AND HANDLING

A. Inspect pipe and fittings upon arrival of materials at job site.

B. Handle and store pipe materials and fittings to protect them from damage due to impact, shock, shear or free fall. Do not drag pipe and fittings along ground. Do not roll pipe unrestrained from delivery trucks.

C. Use mechanical means to move or handle pipe. Employ acceptable clamps, rope or slings around outside barrel of pipe and fittings. Do not use hooks, bars, or other devices in contact with interior surface of pipe to lift or move lined pipe.

PART 2: PRODUCTS

2.01 PIPE

A. Provide piping materials for gravity sanitary sewers of sizes and types indicated on Drawings or as specified.

B. Unlined reinforced concrete pipe is not acceptable.

2.02 PIPE MATERIAL SCHEDULE

A. Unless otherwise shown on Drawings, use pipe materials that conform to requirements specified in one or more of following Sections:

1. Section 33 11 00.15 - Ductile Iron Pipe and Fittings.

2. Section 33 11 00.11 - Polyvinyl Chloride Pipe.

B. Where shown on Drawings, provide pipe meeting minimum class, dimension ratio, or other criteria indicated.

C. Pipe materials other than those listed above shall not be used for gravity sanitary sewers.

2.03 APPURTENANCES

A. Laterals. Conform to requirements of Section 33 31 00.15 - Sanitary Sewer Service Laterals.

B. Service Connections. Conform to requirements of Section 33 31 00.15 - Sanitary Sewer Service Laterals.

C. Roof, street or other type of surface water drains shall not be connected or reconnected into sanitary sewer lines.

Revised June 2013 33 31 00.11-3

2.04 BEDDING AND BACKFILL MATERIAL

A. Bedding and Backfill: Conform to requirements of Section 31 23 33 - Excavation and Backfill for Utilities and Section 31 23 23 - Utility Backfill Materials.

PART 3: EXECUTION

3.01 PREPARATION

A. Prepare traffic control plans and set up street detours and barricades in preparation for excavation when construction will affect traffic. Conform to requirements of MUTCD, and/or local standards where applicable.

B. Provide barricades, flashing warning lights, and warning signs for excavations.

Conform to requirements MUTCD and/or local standards where applicable.

Maintain barricades and warning lights where work is in progress or where traffic is affected.

C. Perform work in accordance with OSHA standards. Employ trench safety system for excavations over 5 feet deep.

D. Immediately notify agency or company owning utility line which is damaged, broken or disturbed. Obtain approval from AW Project Manager and agency or utility company for repairs or relocations, either temporary or permanent.

E. Remove old pavements and structures including sidewalks and driveways in accordance with installation and DPW requirements.

F. Install and operate dewatering and surface water control measures in accordance with Contract Document requirements.

G. Do not allow sand, debris or runoff to enter sewer system.

3.02 DIVERSION PUMPING

A. All diversion and bypass pumping shall be performed in accordance with Section 33 01 30.51 – Pumping and Bypassing.

3.03 EXCAVATION

A. Earthwork. Conform to requirements of Section 31 23 33 - Excavation and Backfill for Utilities. Use bedding as indicated on Drawings.

B. Line and Grade. Establish required uniform line and grade in trench from benchmarks identified by AW Project Manager. Maintain this control for minimum of 100 feet behind and ahead of pipe-laying operation. Use laser beam equipment to establish and maintain proper line and grade of work. Use of appropriately sized grade boards which are substantially supported is also acceptable. Protect boards and location stakes from damage or dislocation.

C. Trench Excavation. Excavate pipe trenches to depths shown on Drawings and as specified in Section 31 23 33 - Excavation and Backfill for Utilities.

Revised June 2013 33 31 00.11-4

3.04 PIPE INSTALLATION BY OPEN CUT

A. Install pipe in accordance with pipe manufacturer's recommendations and as specified in following paragraphs.

B. Install pipe only after excavation is completed, bottom of trench fine graded, bedding material is installed, and trench has been approved by AW Project Manager.

C. Install pipe to line and grade indicated. Place pipe so that it has continuous bearing of barrel on bedding material and is laid in trench so interior surfaces of pipe follow grades and alignment indicated. Provide bell holes where necessary.

D. Install pipe with spigot ends toward downstream end of flow such that water flows into bell and out the spigot.

E. Form concentric joint with each section of adjoining pipe so as to prevent offsets.

F. Keep interior of pipe clean as installation progresses. Remove foreign material and debris from pipe G. Provide lubricant, place and drive home newly laid sections with come-a-long winches so as to eliminate damage to sections. Install pipe to "home" mark where provided. Use of back hoes or similar powered equipment will not be allowed unless protective measures are provided and approved in advance by Project Manager.

H. Keep excavations free of water during construction and until final inspection.

I. When work is not in progress, cover exposed ends of pipes with approved plug to prevent foreign material from entering pipe.

J. Where gravity sanitary sewer is to be installed under existing water line with separation distance of less than 2 feet, construct new sewer pipe so that 20 feet of ductile iron pipe is centered on water line crossing or encase the sewer line with reinforced concrete encasement as detailed on the plans. If gravity sanitary sewer is to be installed above existing water line, construct new sewer pipe so that 20 feet of ductile iron pipe is centered on water line crossing or encase the sewer line with reinforced concrete encasement. .

K. Where gravity sanitary sewer is to be installed under existing water line, install new sewer using ductile iron or encased in reinforced concrete encasement as shown on Drawings. Maintain minimum 2-feet separation distance.

L. Where the length of the stub is not indicated, install the stub to the right-of-way line and seal the free end with an approved plug.

3.05 PIPE INSTALLATION OTHER THAN OPEN CUT

A. For installation of pipe by directional drilling, conform to requirements of specification sections on directional drilling as appropriate.

Revised June 2013 33 31 00.11-5

3.06 INSTALLATION OF APPURTENANCES

A. Service Connections. Install service connections to conform to requirements of Section 33 31 00.15- Sanitary Sewer Laterals.

B. Construct manholes to conform to requirements of Section 03 48 10 - Precast Concrete Manholes.

3.07 INSPECTION AND TESTING

A. Visual Inspection: Check pipe alignment in accordance with Section 33 01 30.13

- Acceptance Testing for Sanitary Sewers.

B. Mandrel Testing. Use Mandrel Test to test flexible pipe for deflection. Refer to Section 33 01 30.13 - Acceptance Testing for Sanitary Sewers.

C. Pipe Leakage Test. After backfilling line segment and prior to tie-in of service connections, visually inspect gravity sanitary sewers where feasible, and test for leakage in accordance with Section 33 01 30.13 - Acceptance Testing for Sanitary Sewers.

3.08 BACKFILL AND SITE CLEANUP

A. Backfill and compact soil in accordance with Section 31 23 33 - Excavation and Backfill for Utilities.

B. Backfill trench in specified lifts only after pipe installation is approved by AW Project Manager.

C. Repair and replace removed or damaged pavement, curbs, gutters, and sidewalks as specified by local base regulations..

END OF SECTION 33 31 00.11

Sanitary Sewer Laterals

Revised January 2016 33 31 00.15-1

SECTION 33 31 00.15

SANITARY SEWER LATERALS

PART 1: GENERAL

1.01 SECTION INCLUDES

A. Installation of service laterals in sanitary sewers serving areas where sanitary sewer service did not previously exist.

B. Reconnection of existing service connections along parallel, replacement, or rehabilitated sanitary sewers.

1.02 PERFORMANCE REQUIREMENTS

A. Accurately locate in field all proposed service laterals along new sanitary sewer main.

B. Accurately locate in field existing service connections and proposed service laterals along alignment of new parallel or replacement sewer main.

1.03 SUBMITTALS

A. Conform to requirements of Section 01 33 00 - Submittals.

B. Submit product data for each pipe product, fitting, coupling and adapter.

C. Show reconnected services on record drawings. Give exact distance from each service connection to nearest downstream manhole.

PART 2: PRODUCTS

2.01 PVC SERVICE CONNECTION

A. Use SDR 35 PVC sewer pipe conforming to ASTM D1784 and ASTM D3034.

For depths greater than 10’, use SDR 26.

B. PVC pipe shall be gasket jointed with gasket conforming to ASTM D3212.

C. Provide service connection pipe in sizes shown on Drawings. For reconnection of existing services, select service connection pipe diameter to match existing service diameter. Reconnections to rehabilitated sanitary sewer mains shall be limited to following maximum service connection diameter:

Sewer Diameter Maximum Service Connection Diameter

8” or less 4”

10” or less 6”

Revised January 2016 33 31 00.15-2

D. Subject to above limits, provide 6-inch service connection when more than one service discharges into single pipe.

E. Connect service laterals to new, parallel, or replacement sewer mains with prefabricated, full-bodied tee or wye fittings conforming to specifications for sewer main pipe material as specified in other Sections for sewers less than 10 inches in diameter.

F. Where sewers are installed using pipe augering or tunneling, or where sewer is 10 inches or greater in diameter, use an inserta tee to connect service to sewer main.

2.02 PIPE SADDLES

A. Use pipe saddles only on existing sanitary sewer mains. Comply with Paragraph 2.01E for new, parallel, and replacement sanitary sewer mains.

B. Supply one-piece prefabricated saddle, either polyethylene or PVC, with neoprene gasket to accomplish complete seal. Use saddle fabricated to fit outside diameter of connecting pipe. Protruding lip of saddle must be at least 5/8-inch long with grooves or ridges to retain stainless steel band clamps.

C. Use 1/2-inch stainless steel band clamps for securing saddles to liner pipe.

2.03 COUPLINGS AND ADAPTERS

A. For connections between new PVC pipe stubouts and existing service, 4-, 6-, or 8-inch diameter, use flexible adapter coupling consisting of neoprene gasket and stainless steel shear rings with 1/2-inch stainless steel band clamps:

B. For connections between new PVC pipe stubout and new service, use rubber-gasket adapter coupling:

2.04 PLUGS AND CAPS

C. Seal upstream end of unconnected sewer service stubs with rubber gasket plugs or caps of same pipe type and size.

2.05 CLEANOUTS

A. Use SDR 35 PVC sewer pipe conforming to ASTM D1784 and ASTM D3034.

B. PVC pipe shall be gasket jointed with gasket conforming to ASTM D3212.

C. Cleanouts to be provided every 75 LF, and at all changes of direction along the sanitary sewer lateral.

D. Concrete collars to be provided on all new cleanout installations.

E. Install single cleanout on all new individual service connections in accordance with AW standard details.

Revised January 2016 33 31 00.15-3

3.01 PERFORMANCE REQUIREMENTS

A. Provide minimum of 72 hours notice to customers whose sanitary sewer service will potentially be interrupted.

B. Accurately field locate service connections, whether in service or not, along rehabilitated sanitary sewer main. For parallel and replacement sewers, service connections may be located as pipe laying progresses from downstream to upstream.

C. Properly disconnect existing connections from sewer and reconnect to rehabilitated liner, as described in this Section.

D. Reconnect service connections, including those that go to unoccupied or abandoned buildings or to vacant lots, unless directed otherwise by AW Project Manager.

E. Complete reconnection of service lines within 24 hours after cured-in-place liner installation and within 72 hours after disconnection for sliplining, parallel, or replacement sanitary sewer mains.

F. Reconnect services on cured-in-place liner at 12 feet depth or less by excavation method. AW Project Manager reserves right to require service connections by excavation when remote cut service connection damages lines.

G. Reconnection by excavation method shall include fittings and required pipe length to reconnect service line.

H. Connect services 8 inches in diameter and larger to sewer by construction of manhole. Refer to appropriate Specification on manholes for construction.

3.02 PROTECTION

A. Provide barricades, warning lights, and signs for excavations created for service connections.

B. Do not allow sand, debris, or runoff to enter sewer system.

3.03 PREPARATION

A. Determine existing sewer locations and number of existing service connections from closed circuit television (CCTV) inspection DVDs or from field survey.

Accurately field locate existing service connections, whether in service or not.

Use existing service locations to connect or reconnect service lines or liner.

B. For rehabilitated sanitary sewer mains, allow liner to normalize to ambient temperature and recover from imposed stretch. For cured-in-place liners, verify that liner is completely cured.

C. For new parallel and replacement sanitary sewer mains, complete testing and acceptance of downstream sewers as applicable.

Revised January 2016 33 31 00.15-4

3.04 EXCAVATION AND BACKFILL

A. Excavate in accordance with Section 31 23 33 - Excavation and Backfill for Utilities.

B. Perform work in accordance with OSHA standards.

C. Install and operate necessary ground water and surface water control measures in accordance with requirements of the Contract Documents.

D. Determine locations where limited access, buildings or structure preclude use of mechanical excavation equipment. Obtain approval from AW Project Manager for hand excavation.

3.05 RECONNECTION BY EXCAVATION METHOD

A. Remove portion of existing sanitary sewer main or carrier pipe to expose liner pipe. Provide sufficient working space for installing prefabricated pipe saddle.

B. Carefully cut liner pipe making hole to accept stubout protruding from underside of saddle.

C. Strap on saddle using stainless steel band on each side of saddle. Tighten bands to produce watertight seal of saddle gasket to liner pipe.

D. Remove and replace cracked, offset, or leaking service line for up to 5 feet, measured horizontally, from center of new liner.

E. Make up connection between liner and service line using PVC sewer pipe and approved fittings and couplings.

F. Encase entire service connection in cement stabilized sand as shown on Drawings.

G. Test service connections before backfilling.

3.06 RECONNECTION BY REMOTE METHOD

A. Make service reconnections using remote-operated cutting tools on cured-in-place liners at depth greater than 12 feet.

B. Employ method and equipment that restore service connection capacity to not less than 90 percent of original capacity.

C. Immediately open missed connections and repair holes drilled in error using method approved by AW Project Manager.

3.07 RECONNECTION ON PARALLEL OR REPLACEMENT SEGMENTS

A. Install service connections on sewer main.

B. Remove and replace cracked, offset or leaking service line for up to 5 feet, measured horizontally, from centerline of sanitary sewer main.

Revised January 2016 33 31 00.15-5

C. Make up connection between main and existing service line using PVC sewer pipe and approved couplings, as shown on Drawings.

D. Test service connections before backfilling.

E. Embed service connection and service line as specified for sanitary sewer main as shown on Drawings. Place and compact trench zone backfill in compliance with Section 31 23 33 - Excavation and Backfill for Utilities.

3.08 INSTALLATION OF NEW SERVICE LATERALS

A. Install service connections on sanitary sewer main for each service connection.

Provide length of lateral indicated on Drawings. Install plug or cap on upstream end of service lateral as needed.

B. Test service connections before backfilling.

C. Embed service connection and service line as specified for sanitary sewer main, and as shown on Drawings. Place and compact trench zone backfill in compliance with Section 31 23 33 - Excavation and Backfill for Utilities. Install minimum 2-foot length of magnetic locating tape along axis of service stub and 9 inches to 12 inches above crown of pipe, at end of stub.

D. Install dual direction cleanouts at the point of demarcation or as otherwise shown on Drawings.

3.09 TESTING

A. Test service reconnections and service laterals. Follow applicable procedures given in Section 33 01 30.13 - Acceptance Testing for Sanitary Sewers to perform smoke testing to confirm reconnection.

B. Perform post installation CCTV inspection as specified in the Contract Documents. Cleaning and television inspection to show locations of service connection.

3.10 CLEANUP

A. Backfill excavation as specified in Section 31 23 33 - Excavation and Backfill for Utilities.

B. Replace pavement or sidewalks removed or damaged by excavation. In unpaved areas, bring surface to grade and slope surrounding excavation.

Restore all disturbed paved and lawn areas in accordance with local base and DPW regulations.

END OF SECTION 33 31 00.15

Valve Boxes and Meter Vaults

Revised January 2016 03 48 20-1

SECTION 03 48 20

VALVE BOXES AND METER VAULTS

PART 1: GENERAL

1.01 SECTION INCLUDES

A. Valve boxes for water and cleanout boxes for wastewater service.

B. Meter boxes for water service.

C. Meter vaults for water and wastewater service.

1.02 SUBMITTALS

A. Conform to requirements of Section 01 33 00 - Submittals.

B. Submit manufacturers' product data for following items for approval:

1. Each type of valve box and lid.

2. Each type of meter box and cover.

3. Each type of meter vault frame and cover.

C. Submit design calculations and shop drawings for precast vault elements, sealed by a Professional Engineer licensed to practice in the State in which the Work is performed..

D. Submit shop drawings for cast-in-place meter vaults for approval if proposed construction varies from Project Drawings.

PART 2: PRODUCTS

2.01 VALVE BOXES AND CLEANOUT BOXES

A. Provide approved Type A, cast-iron/ductile-iron, slide-type or screw-type, valve boxes. Design of valve box shall minimize stresses on valve imposed by loads on box lid.

B. Cast letter ‘S' into lid for cleanouts serving wastewater force main lines, 1/2-inch in height and raised 3/32-inch. Cast letter ‘W' into lid for valves serving potable water lines, 1/2-inch in height and raised 3/32-inch.

C. Unless otherwise specified, uncoated cast iron.

D. Riser Pipe.

1. Provide 6-inch PVC, Class 150, DR 18, riser pipes in accordance with Section 33 11 00.11 - Polyvinyl Chloride Pipe or;

Revised January 2016 03 48 20-2

2. 6-inch ductile-iron, thickness Class 51 riser pipes in accordance with Section 33 11 00.15 - Ductile Iron Pipe and Fittings.

3. Provide single section of pipe.

E. Concrete for valve box placement:

1. For locations in new concrete pavement, provide concrete in accordance with Cast-In-Place Concrete Section.

2.02 METER BOXES

A. Provide meter boxes for 5/8-inch through 1-inch meters of the following materials:

1. Non-traffic bearing locations: Cast iron, polyethylene, or concrete. Meter boxes of polyethylene construction shall not be installed in roadways.

2. Traffic bearing locations: Cast iron.

B. Provide cast iron, concrete or polyethylene meter boxes for 1 1/2-inch and 2-inch meters.

C. Provide meter box with reading lid. Provide lids with spring-type latching devices. Lids shall contain sufficient metal that meter box can be easily located with metal detector. Cast words "WATER METER" into lid with letters of 1/2-inch height and raised 3/32-inch.

D. All meter box lids shall be cast iron rated for H20 loading.

E. Extensions: Meter box extensions 3-inches and 6-inches in height shall be available from manufacturer as standard item.

F. Cast-Iron Boxes: Clean and free from sand blow-holes or other defects conforming to requirements of ASTM A48, Class 30B. Bearing surfaces shall be machined so that covers seat evenly in frames.

1. Boxes and lids shall have dipped, coal-tar-pitch, varnish finish.

2. Provide lock-type meter boxes when required by Project Drawings. Lock mechanisms shall work with ease.

G. Concrete Meter Boxes: Made of Class A concrete, with minimum 4000 psi compressive strength. Construct to dimensions shown on Project Drawings.

1. Castings: Free from fractures, large or deep cracks, blisters or surface roughness or any other defects that may affect serviceability.

2. Concrete meter lids are not permitted.

H. Meter Boxes shall be as per AW Standard Details.

2.03 METER VAULTS

A. Meter vaults may be constructed of precast concrete or cast-in-place concrete unless a specific type of construction is required by Drawings.

B. Concrete for meter vaults: Conform to requirements of Section - Cast-In-Place Concrete.

Revised January 2016 03 48 20-3

C. Reinforcing steel for meter vaults: Conform to requirements of Section – Cast In Place Concrete.

D. Meter vaults shall be designed to include anti-floatation provisions.

E. Grates and Covers: Use castings for frames, grates, rings and covers conforming to ASTM A48, Class 35B. Provide locking covers if indicated on Project Drawings.

1. Use clean castings capable of withstanding application of AASHTO

M306 - 40,000 pound proof loading without detrimental permanent deformation.

2. Fabricate castings to conform to shapes, dimensions, and with wording or logos shown on Project Drawings. Standard dimension for manhole cover opening is 32-inches in diameter.

3. Use clean castings, free from blowholes and other surface imperfections. Use clean and symmetrical cast holes in covers, free of plugs.

F. Provide safety grate option and keyed locks for all access hatches. Provide master access keys in accordance with Owner’s requirements. Two of each key shall be provided and keys shall be tagged for lock location.

PART 3: EXECUTION

3.01 EXAMINATION

A. Obtain approval from AW Project Manager for location of meter vault and meter boxes.

B. Verify lines and grades are correct.

C. Verify compacted subgrade will support loads imposed by vaults.

i. Require 12” compacted soil or

ii. 6” compacted soil and 6” of <1” clean stone

3.02 VALVE BOXES

A. Install riser pipe with suitable length for depth of cover indicated on Project Drawings or to accommodate actual finish grade.

1. Install with bell on top of valve

2. Install valve box and riser piping plumbed in a vertical position

B. Provide 6-inches telescoping freeboard space between riser pipe top butt end, and interior contact flange of valve box, for vertical movement damping. End of pipe resting on valve shall be notched out sufficiently to provide a snug fit around the valve bonnet and to center valve inside of pipe.

C. Set, align, and adjust valve box so that lid is level with final grade.

Revised January 2016 03 48 20-4

3.03 METER BOXES

A. Install cast iron meter boxes in accordance with manufacturer's instructions.

B. Construct concrete meter boxes to dimensions shown on Project Drawings.

C. Adjust top of meter boxes to conform to cover elevations specified in Paragraph

3.05, Frame and Cover for Meter Vaults, below.

D. Do not locate under paved areas unless approved by AW Project Manager. Use approved traffic type box with cast iron lid when meter must be located in paved areas.

3.04 METER VAULTS

A. Construct concrete meter vaults to dimensions shown on Project Drawings. Do not cast in presence of water. Make bottom uniform. Verify lines and grades are correct and compacted subgrade will support loads imposed by vaults.

B. Precast Meter Vaults:

1. Install precast vaults in accordance with manufacturer's recommendations. Set level on a minimum 3-inch-thick bed of sand conforming to requirements of Utility Backfill Materials Section.

2. Seal lifting holes with cement-sand mortar or non-shrink grout.

C. Meter Vault Floor Slab:

1. Construct floor slabs of 6-inch-thick reinforced concrete. Slope floor 1/4-inch per foot toward sump. Make sump 12-inches in diameter, or 12-inches square, and 4-inches deep, unless other dimensions are required by Project Drawings. Install dowels at maximum of 18-inches, center-to-center for keying walls to floor slab.

2. Precast floor slab elements may be used for precast vault construction.

D. Cast-in-Place Meter Vault Walls:

1. Key walls to floor slab and form to dimensions shown on Project Drawings.

Minimum wall thickness shall be 6-inches.

2. Cast walls monolithically. One construction joint will be allowed when vault depth exceeds 12-feet.

3. Set frame for cover in concrete.

3.05 FRAME AND COVER FOR METER VAULTS

A. Set cast iron frame in a mortar bed and adjust elevation of cover as follows:

1. In unpaved areas, set top of meter box or meter vault cover 4 to 6-inches above natural grade.

2. In paved areas, set top of meter box or meter vault cover flush with adjacent concrete.

Revised January 2016 03 48 20-5

3.06 BACKFILL

A. Provide backfill in accordance with Utility Backfill Materials Section and backfill and compact in accordance with Excavation and Backfill for Utilities Section.

B. Compacted soil and stone shall extend minimum of 6” beyond meter vaults and 3” beyond valve boxes.

C. Valve boxes shall be supported by bricks all around, where needed.

END OF SECTION 03 48 20

Pressure and Leakage Tests

Revised January 2016 33 01 10.13-1

SECTION 33 01 10.13

PRESSURE AND LEAKAGE TESTS

PART 1: GENERAL

1.01 SCOPE OF WORK

A. Test all piping, valves, and appurtenances installed under this Contract. Testing shall be performed concurrent with installation. Do not install more than 1,000 feet of pipe without being tested, unless approved by AW.

1.02 SUBMITTALS

A. Prepare and submit schedules and procedures to AW for testing of all parts of the water main installed in accordance with this Contract. Submit the schedule at least seven days prior to any testing.

PART 2: PRODUCTS

2.01 EQUIPMENT

A. Furnish the pump, pipe connections, and all necessary apparatus for the pressure and leakage tests including gauges and metering devices. AW reserves the option to furnish the gauges and metering devices for the tests.

Excavate, backfill, and furnish all necessary assistance for conducting the tests.

B. Pressure gauges used for testing shall have no greater than 5 psi increment markings or shall be as directed by the AW Project Manager for the satisfactory evaluation of the required testing.

PART 3 EXECUTION

3.01 GENERAL

A. Leakage Tests must be in accordance with ASTM C969 and C1244. Leakage test are required for all gravity lines. Perform hydrostatic pressure tests in accordance with AWWA C600, Section 5.2 - Hydrostatic Testing after the pipe or section of pipe has been laid, thrust blocking cured (min. 5 days), and the trench is completely or partially backfilled. Where practical, testing shall be performed fully isolated from the active distribution system.

B. Contractor may, at his option, completely backfill the trench or partially backfill the trench over the center portion of each pipe section to be tested. However, AW may direct the Contractor to completely backfill the trench if local traffic or safety conditions require.

Revised January 2016 33 01 10.13-2

C. For system operating pressures of 200 psi or less, perform the hydrostatic test at a pressure of no less than 100 psi above the normal operating pressure without exceeding the rating of the pipe and appurtenances. For system operating pressures in excess of 200 psi, perform the hydrostatic test at a pressure that is

1.5 times the normal operating pressure, but no more than the design rating of the pipe and appurtenances.

D. Valves shall not be operated in either direction at a differential pressure exceeding the rated valve working pressure. A test pressure greater than the rated valve working pressure can result in trapped test pressure between the gates of a double-disc gate valve. For tests exceeding the rated valve working pressure, the test setup should include a provision, independent of the valve, to reduce the line pressure to the rated valve working pressure on completion of the test. The valve can then be opened enough to equalize the trapped pressure with the line pressure, or the valve can be fully opened if desired.

E. The test pressure shall not exceed the rated working pressure or differential pressure of the valves when the pressure boundary of the test section includes closed, resilient-seated gate valves or butterfly valves.

F. Contractor shall attach a tapping sleeve and valve assembly to the main, and pressure test the assembly prior to making the tap. The required test pressure shall be determined in the same manner as for pipe. The test is acceptable if there is no pressure drop in 15 minutes at test pressure.

3.02 FILLING AND TESTING

A. Slowly fill each segregated section of pipeline with water ensuring that all air is expelled. Extreme care must be taken to ensure that all air is expelled during the filling of pipe. The line shall stand full of water for at least twenty-four hours prior to testing to allow all air to escape. If necessary, tap the main at points of highest elevation to expel air as the pipe is filled. Remove the corporation stops and plug the taps after successfully filling the pipeline and expelling all air as approved by AW.

B. Apply the specified test pressure, measured at the point of lowest elevation, using a suitable pump connected to the pipe in a manner satisfactory to the AW Project Manager. If the elevation of the high point of the pipeline being tested is such that the pressure during testing will be below 85% of the required test pressure, AW will require a separate test to be performed on this section of pipeline. In lieu of a separate test, the test pressure measured at the lowest elevation may be increased, within the pressure rating of the pipeline material, such that the resulting pressure at the highest point exceeds 85% of the required test pressure. The test will be conducted for at least two (2) hours at the required test pressure ± 5 psi.

C. Conduct a leakage test concurrently with the pressure test. Leakage is defined as the volume of water that must be supplied into the newly laid pipeline to

Revised January 2016 33 01 10.13-3 maintain pressure within ± 5 psi of the test pressure after it is filled and purged of air. Measure the volume of water using a calibrated container or meter.

D. No pipeline installation will be accepted by AW if the leakage is greater than that shown in the following table:

Allowable Leakage per 1000 ft. of Pipeline*---gph

*If the pipeline under test contains sections of various diameters, the allowable leakage will be the sum of the computed leakage for each size.

The table has been generated from the formula:

000,148

* PDSL

Where:

L is the allowable leakage in gallons per hour, S is the length of pipe in feet, D is the nominal pipe diameter in inches, and P is the average test pressure in psig.

E. Should any test disclose damaged or defective materials or leakage greater than that permitted, the Contractor shall, at the Contractor’s expense, locate and repair and/or replace the damaged or defective materials. Materials used for repair must be approved by AW and meet the relevant specifications. Repeat the tests until the leakage is within the permitted allowance and is satisfactory to

AW.

END OF SECTION 33 01 10.13

Tracer Wire

Revised July 2014 33 05 27-1

SECTION 33 05 27

TRACER WIRE

1.01 SCOPE

A. Install electrically continuous tracer wire with access points as described herein to be used for locating pipe with an electronic pipe locator after installation.

Tracer wire shall be installed on all water mains and services, all wastewater lines and sewer mains and services and all wastewater force mains.

A. Submit shop drawings and manufacturer's literature to the Engineer for approval in accordance with Specification Section 01 33 00.

2.01 TRACER WIRE MATERIAL

A. Tracer wire to be twelve gauge minimum solid copper with thermoplastic insulation recommended for direct burial. Wire connectors to be 3M DBR, or approved equal, and shall be watertight to provide electrical continuity.

B. Tracer wire color shall be blue for all water construction and green for all wastewater construction.

2.02 TRACER WIRE ACCESS BOXES

For locations where valve boxes are not present, the tracer wire access point shall be composed of one SnakePit Tracer Wire Access Box, or approved equal, installed at each proposed access point.

2.03 TESTING REQUIREMENTS

A. Contractor shall perform a continuity test on all tracer wire in the presence of AW or AW’s representative. If the tracer wire is found to be not continuous after testing, Contractor shall repair or replace the failed segment of the wire at their own expense.

Revised July 2014 33 05 27-2

3.01 INSTALLATION - GENERAL REQUIREMENTS

A. Tracer wire shall be installed on all water and sewer mains and services. The wire shall be installed in such a manner as to be able to properly tracer all mains without loss or deterioration of signal or without the transmitted signal migrating off the tracer wire.

B. Tracer wire shall be installed in the same trench and inside bored holes and casing with pipe during pipe installation. It shall be laid in the trench below the pipe and pipe bedding being installed to ensure that the wire is not damaged during future repair operations. The tracer wire shall be securely bonded together at all wire joints with an approved watertight connector to provide electrical continuity, and it shall be accessible at all tracer wire access points.

C. Tracer wire access points shall in general be no more than five-hundred feet and at every proposed concrete valve box collar (or manhole where required).

Concentrations of multiple proposed valves near pipe intersections, i.e. tees or crosses, may require more than one access point assembly in each concrete valve box collar. Tracer wire access points shall be within public right-of-way or public utility easements.

D. At each valve location, (including fire hydrant isolation valves), a loop of wire is to be brought up the outside of the valve box and looped inside the box through a hole drilled 2-inch below the bottom of the lid.

E. At the point of connection between cast or ductile iron mains, with any non-iron main, the tracer wire shall be properly connected to the iron pipe with a cad weld or approved equivalent. Tracer wire welds shall be completely sealed with the use of an approved mastic type sealer specifically manufactured for underground use. Mastic shall be applied in a thick coat a minimum of 2-inches thick and shall be protected from contamination by the backfill material with the use of a plastic membrane.

F. Except for approved spliced-in connections, tracer wire shall be continuous and without splices from each tracer wire access point. Where any approved spliced-in connections occur, 3M DBR water tight connectors, or approved equal, shall be used to provide electrical continuity.

G. At all main end caps, a minimum of 6 feet of tracer wire shall be extended beyond the end of the pipe, coiled and secured for future connections. The end of the tracer wire shall be spliced to the wire of a six pound zinc anode and is to be buried at the same elevation as the water main.

H. For directional drilling, auguring or boring installations, two #12 tracer wires shall be installed with the pipe and connected to the tracer wire at both ends, or cad

Revised July 2014 33 05 27-3 welded to the existing iron pipe at both ends or cad welded to the steel casing pipe at both ends.

I. Spliced connections between the main line tracer wire and branch connection tracer wire shall only be allowed at water main tees, crosses or at iron or copper water services where a portion of the branch connection water main or water service is replaced with non-iron or non-copper material. The branch connection tracer wire shall be a single tracer wire properly spliced to the main line tracer wire. Where the existing branch connection is neither iron nor copper, then the new branch connection tracer wire shall be properly spliced to the existing tracer wire on the branch connection.

J. At all repair locations where there is existing tracer wire, the tracer wire shall be properly reconnected and spliced as outlined above.

END OF SECTION 33 05 27

Revised January 2016 33 11 00.11-1

SECTION 33 11 00.11

POLYVINYL CHLORIDE (PVC) PIPE

1.01 SECTION INCLUDES

PVC pressure pipe and fabricated fittings in nominal sizes 4-inches through 12-inches with cast iron pipe equivalent outside diameters.

Submit manufacturer’s product data, installation instructions and certification for all materials to be furnished in accordance with Specification Section 01 33 00. Submit classification and gradation test results for embedment and pipe backfill material.

PART 2: PRODUCTS

Research has documented that certain pipe materials (such as polyvinyl chloride, polyethylene, and polybutylene) and certain elastomers (such as those used in gasket material) may be subject to permeation by lower-molecular weight organic solvents or petroleum products.

Products supplied under this Section assume that petroleum products or organic solvents will not be encountered. If during the course of pipeline installation the Contractor identifies, or suspects the presence of petroleum products or any unknown chemical substance, notify AW immediately. Stop installing piping in the area of suspected contamination until direction is provided by AW Project Manager..

PVC Schedule 40 or 80 is not permitted for conveying wastewater or potable water within distribution or collection systems. However, it may be used in other applications, such as conveying chemicals or for drainage.

2.01 PIPE MATERIALS – WATER DISTRIBUTION

All PVC pipe shall be PVC 1120 pressure pipe made from class 12454 material as defined by ASTM D1784 with outside diameter dimensions of steel or cast iron pipe. The PVC compounds shall be treated or certified suitable for potable water products by the National Sanitation Foundation Testing Laboratory (NSF Standard No. 61). PVC pipe to be used for potable water shall be blue in color.

PVC Pipe 4-inch through 12-inch:

AWWA Standard C900, DR14 and where permitted DR18. DR25 pipe will not be allowed. PVC pipe has recently been upgraded by pressure class, however American Water does not allow pipe in its system to be fully subject to the revised pressures in AWWA C900. DR14 shall not be subjected to pressures exceeding 250 psi. DR18 shall not be subjected to pressures exceeding 200 psi.

Revised January 2016 33 11 00.11-2

2.02 GRAVITY SEWER PIPE

A. PVC gravity sanitary sewer pipe shall be green in color and in accordance with provisions in following table except where specified differently on the Drawings:

B.

Type of service Acceptable Materials

Gravity Mains with depth of cover < 10 feet PVC SDR 35

Gravity Mains with depth of cover 10-15 feet PVC SDR 26

Gravity Mains with depth of cover > 15 feet Ductile Iron Pipe

C. When solid wall PVC pipe 18-inches to 27-inches in diameter is required in SDR 26, provide pipe conforming to ASTM F679, except provide wall thickness as required for SDR 26 and pipe strength of 115 psi.

D. For sewers up to 12-inch diameter crossing over water lines, or crossing under water lines with less than 2-feet separation, provide minimum 150 psi pressure rated pipe conforming to ASTM D2241 with suitable PVC adapter couplings.

E. Joints: Spigot and integral wall section bell with solid cross section elastomeric or rubber ring gasket conforming to requirements of ASTM D3212 and ASTM F477, or ASTM D3139 and ASTM F477. Gaskets shall be factory-assembled and securely bonded in place to prevent displacement. Manufacturer shall test sample from each batch conforming to requirements ASTM D2444

F. Fittings: Provide PVC gravity sewer sanitary bends, tee, or wye fittings for new sanitary sewer construction. PVC pipe fittings shall be full-bodied, either injection molded or factory fabricated. Saddle-type tee or wye fittings are not acceptable.

G. Pipe Stiffness. Determine pipe stiffness at 5 percent deflection in accordance with Test Method D 2412. Minimum pipe stiffness shall be 46 psi. For diameters 4-inches through 18-inches, test three specimens, each a minimum of 6-inches (150 mm) in length. For diameters 21-inch through 36-inch, test three specimens, each a minimum of 12-inch (300

mm) in length.

H. Flattening. Flatten three specimens of pipe, prepared in accordance with Paragraph 2.04F, in suitable press until internal diameter has been reduced to 60 percent of original inside diameter of pipe. Rate of loading shall be uniform. Test specimens, when examined under normal light and with unaided eye, shall show no evidence of splitting, cracking, breaking, or separation of pipe walls or bracing profiles. Perform the flattening test in conjunction with pipe stiffness test.

I. Joint Tightness. Test for joint tightness in accordance with ASTM D3212, except that joint shall remain watertight at minimum deflection of 5 percent. Manufacturer will be

Revised January 2016 33 11 00.11-3 required to provide independent third party certification for joint testing each diameter of storm…