33 14 17 - Site Water Service Utility Laterals.pdf

33 14 17 Site Water Service

Utility Laterals

1.0 General

1.1 Summary

A. Section Includes:

1. Pipe and fittings for 2-inch diameter and smaller water service connections to buildings.

2. Corporation stop assemblies.

3. Curb stop assemblies.

4. Trenching, bedding, and cover.

B. Related Requirements:

1. Section 01 78 39.B - Contractor Requirements - Data Deliverables for Water and

Sewer Infrastructure Construction Projects

2. Section 33 13 00 – Disinfection of Water Utility Distribution: Flushing and disinfecting of water system.

1.2 Reference Standards

A. ASTM International:

1. ASTM B62 – Standard Specification for Composition Bronze or Ounce Metal

Castings.

2. ASTM B88 – Standard Specification for Seamless Copper Water Tube.

B. American Water Works Association:

1. AWWA C800 – Underground Service Line Valves and Fittings.

1.3 Submittals

A. Section 01 33 00 – Submittal Procedures: Requirements for submittals.

B. Product Data: The Contractor shall submit manufacturer information regarding pipe materials, pipe fittings, corporation stop assemblies, curb stop assemblies, service saddles, and accessories.

1.4 Closeout Submittals

A. Section 01 77 00 – Closeout Procedures: Requirements for submittals.

B. Project Record Documents: The Contractor shall record actual locations of piping mains, curb stops, connections, thrust restraints, and elevations.

C. Service Card: The Contractor shall complete a service card for each water service line replaced as part of the project. The Contractor shall use the service card attached to the end of Section 01 78 39 – Project Record Documents.

D. The Contractor shall identify and describe unexpected variations to subsoil conditions or discovery of uncharted utilities.

1.5 Delivery, Storage, and Handling

A. Section 01 61 00 – Product Requirements: Requirements for transporting, handling, storing, and protecting products.

B. Inspection: The Contractor shall accept materials on Site only in manufacturer's original packaging and inspect for damage.

C. The Contractor shall store materials according to manufacturer instructions.

D. Protection:

1. Protect materials from moisture and dust by storing in clean, dry location remote from construction operations areas.

2. Provide additional protection according to manufacturer instructions.

2.0 Products

2.1 Water Piping and Fittings

A. Copper Tubing (2-inches diameter or less):

1. Comply with ASTM B88.

2. Type: K, annealed.

3. Joints: Compression.

B. Services larger than 2-inches shall be constructed of ductile iron pipe in accordance with section 33 14 13 – Public Water Utility Distribution Piping.

C. Unions:

1. Comply with AWWA C800.

2. Material: Non-lead brass.

3. Connections: Compression.

4. Dielectric coupling required for all copper to non-copper connections.

5. The Contractor is advised that the Contractor will need to connect to existing water service laterals of different types and materials (e.g., hard copper, etc.). The

Contractor shall account for this within their bid. No additional payment shall be made from the Owner to the Contractor for the Contractor providing the unions

(couplers) as required to complete the Work outlined within the Contract

Documents.

2.2 CORPORATION STOP ASSEMBLIES

A. Manufacturers:

1. A.Y. McDonald.

2. Ford Meter Box.

3. Or approved equal.

B. Corporation Stops:

1. Comply with ASTM B62.

2. Body: Non-lead brass.

3. Valve style: Ball.

4. Inlet End: Threaded for tapping according to AWWA C800.

5. Outlet End: Suitable for service pipe specified.

C. Service Saddles:

1. Saddle body: Ductile iron.

2. Type: Stainless steel, double strap, 2-inch wide each.

3. Gasket: NBR.

4. Bolts and Nuts: Type 300 Stainless steel.

5. Designed to hold pressures in excess of pipe working pressure.

2.3 Curb Stop Assemblies

A. Manufacturers:

1. A.Y. McDonald.

2. Ford Meter Box.

3. Or approved equal.

B. Curb Stops:

1. Body: Non-lead brass.

2. Comply with ASTM B62.

3. Valve Type: Ball.

4. Sealing: Positive pressure.

5. Accessory: Stationary rod.

6. Connection: Compression.

C. Curb Boxes and Covers:

1. Manufacturer:

a. Ford Meter Box.

b. Tyler Union.

c. Or approved equal.

2. Body: Cast iron.

3. Size: 2 ½-inch.

4. Type: Two-piece, screw type.

5. Base: Arch pattern.

6. Coating: Tar or asphaltic compound; interior and exterior.

7. Cover:

a. Within vegetative areas: Flush fit.

b. Within sidewalk areas: Drop-in, flush fit.

c. Inscription: WATER.

d. Plug: Pentagonal.

2.4 Materials

A. Bedding and Backfill:

1. Bedding and Backfill: As specified in Section 31 23 33 – Trenching and Backfilling for Utilities.

2. Soil Backfill from above Pipe to Finish Grade: Suitable Backfill Material as specified in Section 31 23 33 – Trenching and Backfilling for Utilities.

3. Subsoil: No rocks more than 6 inches in diameter, frozen earth, or foreign matter.

2.5 Accessories

A. Pipe Markers: As specified in Section 33 05 53 – Identification for Utilities Piping and

Equipment.

3.0 Execution

3.1 Examination

A. Section 01 73 00 - Execution Requirements: Requirements for installation examination.

B. The Contractor shall verify that building service connections and municipal utility water main sizes, locations, and inverts are as indicated on the Contract Drawings.

C. The Contractor may make a written request to the Owner, through the Engineer, to obtain copies of historic water service cards, for existing water service laterals. The

Owner, however, makes no representations or guarantees – implied or otherwise – as to the accuracy or quality of any historic data or other references. No additional payment shall be due from the Owner to the Contractor for any discrepancies, inconsistencies, or errors.

D. By submission of their bid, the Contractor has acknowledged that the Owner does not own or operate individual service laterals (both sewer and water). Service laterals are solely owned by and the responsibility of individual property owners. Locations of service laterals and similar features (e.g., curb stops, cleanouts) are shown on the Contract

Drawings for reference only, and any such field marks are likewise the Owner’s best available information. The Contractor is responsible to locate all existing service laterals as required to perform the Work of the Contract, at no additional cost to the Owner. The

Owner shall not be liable to locate individual service laterals and/or their related features.

3.2 Preparation

A. Section 01 73 00 – Execution Requirements: Requirements for installation preparation.

B. The Contractor shall cut pipe ends square, ream pipe and tube ends to full pipe diameter, and remove burrs.

C. The Contractor shall remove scale and dirt from inside and outside of piping before assembly.

D. The Contractor shall properly prepare pipe connections to equipment.

E. The Contractor shall ensure that all proper and necessary notifications have been made prior to any planned work on a service utility lateral that will or may interrupt service.

At a minimum, the Contractor shall notify the impacted part(ies) before starting and once concluding any Work that will or may interrupt service. No separate or additional payment shall be made for Contractor notifications.

3.3 Installation

A. Corporation Stop Assemblies:

1. The Contractor shall make connection for each different kind of water main, using suitable materials, equipment, and methods as approved by Engineer.

2. The Contractor shall provide service saddles unless otherwise noted on the

Contract Drawings. Service clamps for mains constructed of materials other than cast iron or ductile iron.

3. Location:

a. Screw corporation stops directly into service saddle or tapped and threaded into main at 10 o’clock and 2 o’clock positions along main's circumference.

b. Locate and stagger corporation stops at least 12-inches apart longitudinally.

4. The Contractor shall use seals or other devices such that no leaks are present in mains at points of tapping.

5. The Contractor shall not backfill and cover service connections until installation has been approved by Engineer.

B. Bedding:

1. The Contractor shall excavate pipe trench as specified in Section 31 23 33 –

Trenching and Backfilling for Utilities.

2. The Contractor shall backfill around sides and to top of pipe as specified in Section

31 23 33 – Trenching and Backfilling for Utilities and the Drawings.

3. The Contractor shall maintain optimum moisture content of fill material to attain required compaction density.

C. Pipe and Fittings:

1. The Contractor shall maintain separation of water main from sewer piping according to state standards.

2. The Contractor shall group piping with other Site piping Work whenever practical.

3. The Contractor shall install pipe to allow for expansion and contraction without stressing pipe or joints.

4. The Contractor shall install access fittings to permit disinfection of water system.

5. Thrust Restraints: Mechanically restrained joints if approved by the Owner, the

Contractor shall form and place concrete for thrust restraints at each elbow or change of direction of pipe.

6. The Contractor shall establish elevations of buried piping with not less than four

(4) ft. of cover.

7. Pipe Markers: As specified in Section 33 05 53 – Identification for Utilities Piping and Equipment.

8. The Contractor shall backfill trench as specified in Section 31 23 33 – Trenching and Backfilling for Utilities.

D. Curb Stop Assemblies:

1. The Contractor shall set curb stops on solid bearing compacted soil.

2. The curb stop shall be located as shown on the Drawings.

3. Boxes:

a. The Contractor shall center and plumb curb boxes over curb stops.

b. The Contractor shall set box cover flush with finished grade.

E. Service Connections:

1. The Contractor shall install water service according to as indicated on the Contract

Drawings.

2. The Contractor shall use one continuous length of pipe for all water services from the curb box to the corporation fitting. No joint connections shall be installed on the proposed water service line.

3. No fittings in contact with water are to contain lead.

4. All service lines shall have a minimum of four (4) ft. of ground cover to protect the pipe from freezing. The service line shall also be bedded in screening.

5. All service lines must be inspected prior to back filling. If a service line is back filled prior to inspection, it will be required to be excavated for inspection:

a. A service line shall be inspected for the proper fittings.

b. Proper type of pipe.

c. Verify that the correct connections were made.

d. Proper location of the curb box.

e. Proper bedding.

6. Final inspection of a completed system by the Engineer, from the curb stop to the curb box, is required prior to acceptance.

7. If an existing water service line is broken, it can be repaired by using compression fittings meeting AWWA C800, that are manufactured for the specific pipe that is being repaired. In no case can the repaired water service line be back filled until the repaired water service line can be pressure tested. If the existing water service line is replaced with polyethylene plastic (ASTM D2239) and the home electrical system is grounded through the water pipe, the property owner will be required to have grounding rods installed by a registered electrician, in accordance with the current electrical code.

F. Disinfection of Water Piping System: The Contractor shall flush and disinfect system as specified in Section 33 13 00 – Disinfection of Water Utility Distribution.

G. Existing water service curb stops to remain – Where the Contract Drawings call for an existing water curb stop to remain, the Contractor shall be responsible to expose and thoroughly clean the existing water curb stop box. The Contractor shall be responsible to operate the existing water curb stop, to remain, during construction to confirm its operability. The Contractor shall immediately notify the Engineer if the existing water service line curb stop is found to be inoperable or otherwise broken. The Contractor shall also report the general condition of the curb stop box (e.g., missing cover, offset, etc.) to the Engineer in a timely manner.

3.4 Field Quality Control

A. Section 01 40 00 – Quality Requirements: Requirements for inspecting and testing.

B. Testing:

1. The Contractor shall pressure test water distribution system according to section

33 05 05.31 – Hydrostatic Testing.

2. After Inspection of the service line, all solid runs of pipe can be backfilled to provide anchoring of the line. All connecting joints, fittings, valves, etc. must remain uncovered until the line is charged with water pressure. Then the joints shall be inspected for leaks. After the line has passed the pressure test, then it may be backfilled with suitable material.

3. The Contractor shall coordinate all testing with the Engineer in advance of conducting any testing. The Engineer shall be provided with ample time to be present at all testing. Any delays shall be the sole responsibility of the Contractor.

C. If tests indicate Work does not meet specified requirements, The Contractor shall remove Work, replace, and retest, at no additional cost to the Owner.

D. Certain improvements shall be field-located by the Contractor using GPS. See Sections

01 78 39 and 01 78 39.B "Contractor Requirements - Data Deliverables for Water and

Sewer Infrastructure Construction Projects".

END OF SECTION