SOW WSL HDPE.pdf

Water Tap and Meter Date: March 2022

Author: Kala Yarnall Water Service Lines PE

STATEMENT OF WORK

1.01 SUMMARY OF WORK TO BE DONE BY CONTRACTOR

A. Furnish and install a water service line as shown on the drawing.

1.02 SITE LOCATION

A. 9015 South 24th Street West, Oktaha, OK 74450 B. Latitude: 35.6285661 Longitude: -95.3963943 C. Finding Directions: From intersection of HWY 69 and Wainwright Road, go east to

Oktaha Road. Go northeast on Oktaha Road approximately 1 mile to 93rd Street. Turn east and go approximately 3 miles to 24th Street. Turn north and go approximately 0.3 mile to new home on WSOR. House sets off road about 900 feet in hay field.

1.03 CONSTRUCTION SCHEDULE

A. Contact the Project Oversight three business days before the start of any work.

B. Failure to perform work on the date scheduled shall require 24-hour notice for rescheduling the work.

C. Leave all work exposed until inspected and approved. Work not inspected before it is covered shall be re-exposed at the Contractor’s expense.

D. All work shall be performed Monday – Friday ONLY between the hours of 8:00 a.m. –

5:00 p.m. No work is to be performed on the weekends and/or federal holidays unless other work schedule arrangements are approved by the Project Oversight.

E. IHS Project Oversight: Tobias Filener, Engineering Technician Office: (918) 586-8409 Cell: (918) 399-9277 Email: tobias.filener@ihs.gov

1.04 WARRANTY

A. Provide a minimum one-year warranty for all materials and labor, covering defects in the materials or workmanship.

1.05 WATER SERVICE LINES

A. References (use latest versions)

1. ASTM D2609 Standard Specification for Plastic Insert Fittings for Polyethylene (PE) Plastic Pipe.

2. ASTM D2737 Standard Specification for Polyethylene (PE) Plastic Tubing.

3. ASTM D2774 Standard Practice for Underground Installation of Thermoplastic

Pressure Piping.

4. AWWA C651 Disinfecting Water Lines

5. AWWA C901 Polyethylene (PE) Pressure Pipe and Tubing, ½ in. Through 3 in.

for Water Service.

6. NSF Standard 014 Plastic Piping System Components and Related Materials.

7. NSF Standard 061 Drinking Water System Components – Health Effects.

B. PE Pipe Material Requirements

1. Ultra-high molecular weight polyethylene pipe.

2. PE 4710 IPS DR 11 (pressure rating 200 psi).

3. Diameter: 2-inch.

4. 500-foot coil.

5. Recommended Manufacturer: Silver-Line Plastics Sil-O-Flex OD DR 11 or approved equal.

C. Fittings:

1. Non-flare compression type fittings with stainless steel pipe stiffeners at each joint, heat (butt) fused, or electro-fused fittings will be accepted.

D. Isolation Valve

1. Ball valve:

a. ¼ turn-handle type.

b. Brass.

E. Valve Box

1. Polyethylene box and cover.

2. Minimum dimensions:

a. Length: 21 inches.

b. Width: 16 inches.

c. Height: 12 inches.

3. Recommended Manufacturer: NDS or approved equal.

1.06 INSTALLATION

A. Install water service lines and appurtenances in the locations, sizes and materials shown on the drawings or staked in the field.

B. Water and sewer service crossing and parallel installation.

1. Maintain a 30-inch horizontal separation between water and sewer services.

2. Maintain a 12-inch vertical separation for crossing water and sewer services. The water service is to be placed above the sewer service whenever possible.

3. Water service line splices or joints will not be permitted within 10 feet of a sewer line crossing.

C. Thrust blocking is to be provided at all changes in direction.

D. All existing fencing shall be undisturbed by construction activities. Any fencing that is disturbed shall be replaced in kind or exceed existing conditions.

E. Any private utilities (i.e. water service lines, etc) disturbed or damaged during construction shall be corrected and fixed at the Contractor’s expense.

1.07 TRENCH

A. Depth: Minimum 30 inches to the top of the pipe.

B. Bottom: Free from stones greater than 3 inch, large dirt clods, and any frozen material.

C. Backfill: restore trenches to initial grade.

1. Initial Backfill

a. Work material under and around the pipe to ensure full pipe support.

b. Hand tamp to prevent movement of the pipe during placement of material, avoiding contact between the pipe and compaction equipment.

c. Compact in lifts not to exceed 6 inches in loose measurement until 12 inches of backfill covers the top of the pipe.

2. Final Backfill

a. Compact in lifts not to exceed 12 inches in loose measurement with mechanical compacting equipment.

b. Compact all backfill to a density not less than the density of the surrounding undisturbed soil.

c. Surplus materials shall be disposed of in accordance with federal, state and local regulations.

d. Any excessive settlement, exceeding 3 inches, shall be corrected by the contractor.

D. Rock Excavation

1. Definition:

a. Solid rock: large masses or rock which cannot be excavated without hammering.

b. Loose rock: boulders and/or detached stone having a volume of one cubic yard or more.

2. Execution:

a. Rock excavation may be accomplished by any or all of the following methods:

ripping with a bull dozer or jack hammering.

b. Remove excavated rock from site unless otherwise directed by the Project

Oversight.

1.08 TESTING

A. Before joints are covered, test pipe for leaks.

B. Visually inspect all connections and fittings for leaks in the presence of the Project

Oversight.

C. Repair all leaks before backfilling.

1.09 CLOSEOUT ACTIVITIES

A. Restore the site as close as is practical to its original condition.

STATEMENT OF WORK