SOW Booster Pump Station.docx

Individual Booster Pump Station Date: December 2022

STATEMENT OF WORK

1.01 SUMMARY OF WORK TO BE DONE BY CONTRACTOR

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

B. Furnish and install booster jet pump, electrical controls, piping, well house, hydropnuematic pressure tank, and appropriate appurtenances to allow the booster pump station to store and deliver water to the home.

1.02 SITE LOCATION

A. 4875 Ash Road, Okmulgee, OK 74447 B. Latitude: 35.6039790 (N) Longitude: -96.1024367 (W) C. Finding Directions: From HWY 56 and Rock Hill Road, go south on Rock Hill Road until it turns west and becomes Ash Road. Go ¾ mile up the hill to driveway on NSOR. Angled steel gate entry across from standpipe.

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.

1.04 SUBMITTALS

A. Material submittals to be provided after contract award.

1. Polyethylene water service line piping.

2. Booster pump.

3. Well house.

4. Hydropnuematic pressure tank.

5. Electrical wiring cable and conduit.

1.05 WARRANTY

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

1.06 WATER SERVICE LINE

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:

a. 2-inch for piping from meter to booster pump station.

b. 1-inch for piping from booster pump station to home connection.

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: 12 inches.

b. Width: 12 inches.

c. Height: 12 inches.

3. Recommended Manufacturer: NDS or approved equal.

1.07 INDIVIDUAL BOOSTER PUMP STATION

A. Material Requirements

1. Piping between components shall:

a. Be 1” SCH40 PVC.

b. Be compatible with components and water service line.

c. Include an isolation (ball) valve downstream of the hydropnuematic pressure tank, and a check valve upstream of the booster pump.

d. Include a 100 psi pressure gauge after the hydropnuematic pressure tank.

B. Pump shall be:

1. Shallow well jet type.

2. ½ HP minimum or ¾ HP maximum.

3. Dual voltage motors (120/240 Volts).

4. Totally enclosed, fan cooled motors.

5. Built-in thermal overload for motor protection.

6. Self-priming.

C. Well house shall be:

1. 4 feet minimum in height and 4 feet minimum in width and length.

2. Constructed of 3/32” thick galvanized steel.

3. Accessible from a hinged door with a hasp latch.

4. Have 1” of spray, Styrofoam, or fiberglass insulation.

5. Anchored to 4” thick concrete slab by 4 stainless steel bolts.

D. Hydropnuematic pressure tank shall be:

1. Minimum 34 gallons in volume.

2. Heavy duty butyl diaphragm.

3. Rated for 40-60 psi discharge pressure.

4. Recommended manufacturer: Amtrol Well-X-Trol WX-205 or approved equal.

E. Controls shall be installed such that;

1. Pump is activated by a pressure switch located upstream of pressure tank.

2. A breaker box and circuit breaker shall be included. Circuit breaker shall be designed to trip if associated pump draws excessive current.

3. 120-volt dual receptacle outlet shall be provided for electric space heater to prevent freezing inside the well house.

F. Electrical wiring shall be;

1. At least 12 AWG, 3 wire, and designed for direct bury.

2. Installed at a minimum depth of 18”.

3. Housed inside rigid or flexible PVC conduit at connections to main breaker panel and inside well house.

1.08 INSTALLATION

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

B. Install isolation valve in valve box prior to booster pump station as to isolate the pump station for future maintenance.

C. Install booster pump as recommended by manufacturer.

D. Install controls and appurtenances in well house so they are easily accessible for future operation and maintenance.

E. 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.

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

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

H. Any gravel driveway open cuts shall be replaced in kind with existing gravel or imported gravel at the contractor’s expense.

1.09 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.

1) Wheel loading is acceptable.

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

c. Mound the trench at a minimum of 3 inches above existing grade to help abate settlement of the excavation.

d. Any excessive settlement, exceeding 3 inches, shall be corrected by the contractor at his own expense.

D. Rock Excavation

1. Definition:

a. Solid rock: large masses or rock which cannot be excavated without hammering, ripping, or other specialized equipment.

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: excavation with earthmoving equipment specialized for rock removal, ripping with a bull dozer, or jack hammering.

b. In areas where rock is excavated, bed the trench with imported backfill with 4 inches below and above the piping.

c. Relocate excavated rock onsite as directed by the Project Oversight.

1.010 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 final backfill.

1.011 CLOSEOUT ACTIVITIES

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

Author: Andrew Banta Individual Booster Pump Station