SOW WSL Tynon_SB Signed.pdf

Water Service Lines PE

Date: March 2025 Author: Ryan Anderson, Water Service Lines PE

1.01 SUMMARY OF WORK TO BE DONE BY CONTRACTOR

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

1.02 SITE LOCATION

A. Address: 63617 E. 140 Road, Miami, OK 74354

B. Coordinates:

1. Latitude: 36.812508° N

2. Longitude: 94.741079° W

C. Directions:

1. From the intersection of the Will Rogers Turnpike and Highway 10 in Miami, OK, head east on Highway 10 for approximately 8.5 miles.

2. Turn south onto S OK-137 Road and continue for 7.3 miles.

3. Turn east onto US-60 E for approximately 2 miles, then turn north onto S 640 Road for

0.5 miles.

4. Turn west onto E 140 Road for 0.5 miles; the driveway will be on the left-hand side

5. On E 140 Road, the destination is 1 mile from the turn, on the south side of the road.

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 scheduled date requires 24-hour notice for rescheduling.

C. Leave all work exposed until inspected and approved by the Project Oversight. Work backfilled or covered before inspection shall be re-exposed at the Contractor’s expense.

D. All work shall be performed Monday through Friday, between 8:00 a.m. and 4:30 p.m., unless approved in advance by the Project Oversight. No work is permitted on weekends or federal/tribal holidays without prior approval.

1.04 WARRANTY

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

1.05 WATER SERVICE LINES

(Sizes: 1-inch through 3-inch diameter PE pipe)

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 DR 11 (pressure rating 200 psi).

3. Diameter: 1-inch.

4. 500-foot coil or roll.

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.

2. Recommended Manufacturer: Ford Meter Box Company, Inc. or approved equal.

D. Valves

1. Shutoff Ball Valve:

a. Brass, 1-inch.

2. Shutoff Gate Valve:

a. Brass, 1-inch.

b. Wheel-type handle.

3. Pressure Reducing Valve:

a. Brass, 1-inch.

b. Adjustable pressure.

c. Recommended Manufacturer: Watts or approved equal.

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 minimum 30-inch horizontal separation between water and sewer services.

2. Maintain a minimum 18-inch vertical separation for crossing water and sewer services;

the water service shall be placed above the sewer service whenever possible.

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

C. Provide thrust blocking at all changes in direction.

1.07 TRENCH

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

B. Bottom: Free from stones larger than ¾ inch, large dirt clods, and frozen material.

C. Bedding: If the trench bottom is hardpan, rock, or contains stones larger than ¾ inch:

1. Over-excavate 6 inches.

2. Place 6 inches of mechanically compacted imported bedding (maximum particle size ¾ inch) under the pipe.

3. Place the pipe in the trench.

4. Place 6 inches of mechanically compacted imported bedding (maximum particle size ¾ inch) on the sides and above the pipe.

D. Backfill: Restore trenches to original grade.

1. Initial Backfill:

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

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

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

2. Final Backfill.

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

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

c. Dispose of surplus materials as directed by the Project Oversight

d. Correct any excessive settlement exceeding 3 inches by the Contractor.

1.08 TESTING

A. Test pipe for leaks before joints are covered.

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 practical to its original condition.

B. Remove and dispose of any excess materials, trash, or debris.