DESCRIPTION OF EXISTING WATER DISTRIBUTION SYSTEM

A. GENERAL

The original Phase I facilities were designed and constructed in 1977 and 1978 and put into operation in September 1979. These facilities were intended to meet the immediate, initial contractual commitments for wholesale customers and to provide water supply to retail users along the transmission mains. Immediately after this phase was put into operation, planning was completed to expand the water treatment plant and to provide additional water supply to several communities. This portion of the utility was constructed and put into operation in 1983 under the Phase II project. Concurrently with the construction of Phase II, many requests for water service to additional areas were made to the Board of Directors, and they requested a preliminary study under the Phase III project to furnish water to these residences. The construction of the Phase III project began in October 1986, and was completed on September 1, 1987. The Phase IV plant project was completed in 1993 with the Phase IV and V water lines being completed in 1995, the Phase V-A project completed in 1998, and the Phase VI project in 2002. The main nucleus of the system facility is shown on the enclosed map.

B. WATER TREATMENT AND INTAKE FACILITY

The existing water treatment facilities are located one mile south of the Patoka Lake dam on State Road 545. The treatment facilities consist of an intake structure, raw water mains, and the treatment plants. The intake structure is located on a 70-foot bluff on the west side of Patoka Lake and is designed for a raw water supply of 20 million GPD. The structure is equipped with multiple inlet ports, traveling screening devices, pumps, and necessary appurtenances for automation and controls. Water from the intake structure flows throughout 16 inch and 30 inch transmission mains to the water treatment plant.

These mains will permit an intended design flow of 20 million GPD. The water treatment facilities are located approximately 1-½ miles west of the intake structure
on a 58-acre tract of land.

Plant #1 has a rated capacity of 2,800 GPM with a net capacity of 4 million GPD. The main components of the treatment facility consist of the following units:

1.) Four 700 GPM solid contact units

2.) Eight 350 GPM filters

3.) High service pumps

4.) Chlorination, ammonia and fluoridation equipment

5.) Controls

6.) Chemical feed equipment

7.) Management and operation offices

8.) Reclaiming backwash facilities, sludge holding ponds, and drying beds

9.) 500,000 gallon clear well

The addition of Treatment Plant #2, completed in 1993 (Phase IV, Division VII) increased the raw water pumping, treatment, and distribution pumping capacity to 8 million gallons per day.

The improvements include the following items:

1.) Increased raw water pumping capacity at intake structure

2.) Added two 2,800 GPM solid contact units

3.) Added four additional 700 GPM filter units

4.) Added two back wash holding tank units

5.) Added three high service pumps with 2,800 GPM capacity each

6.) Added necessary appurtenances for interconnecting piping and electrical facilities.

7.) Added 641,000 gallon underground clear well

8.) Added backwash sludge removal.

The design of Treatment Plant #2 allows it to be added to in increments of 4 MGD, up to a total plant capacity of 16 MGD. Added with Plant #1, this would bring the total capacity at this site to 20 MGD, which matches the current intakes maximum capacity.

C. DISTRIBUTION SYSTEM

The distribution system in Phase I, II, III, IV,V,V-A, and VI consists of approximately 850 miles of 2 inch through 30 inch transmission and distribution mains extending in all directions from the water treatment plant. Flow from the elevated storage tank at the water treatment plant is by gravity pressure throughout the distribution system assisted by two 700 GPM booster stations, one 1500 GPM booster station and two 500 GPM booster stations. The transmission main extending from the plant and surrounding the entire lake area consists of 16 inch through 30-inch mains to distribute 20 million GPD from this main loop. Transmission mains extend to all the retail and wholesale customers requiring service from the district. The complete distribution system is shown on the enclosed plans. The system is complete with the necessary valves, flush and fire hydrants, blow-offs, pressure-reducing valves, radio read meters, and service lines. The pipe consists of ductile iron and PVC pipe. Static pressures vary from 20 PSI to 200 PSI with a customer average pressure of 60-PSI depending on the exact location of service.

D. STORAGE TANKS

Storage tanks are constructed throughout the system to provide flows during peak demand periods and maintain system pressures. Descriptions and locations of the tanks are detailed on the following page: