In the mid 1960's with the rapid growth of Cumberland County moving westward to South Middleton, the township supervisors appointed a municipal authority, which was formally incorporated on April 3, 1969.

In 1972, well no.1 located across from PPG began production, serving the PPG plant and about 30 additional customers.

In 1975, well no.2 was developed one mile west of Boiling Springs, on Rt. 174.

In 1985, well no.3, located southwest of Carlisle on Rockledge Drive, across from the Forest Meadows development, began operation.

Today, the water system serving South Middleton Township consists of:

• 3 Well houses
• 4 Storage tanks, containing a total of 6.5 million gallons of water in reserve
• 66.5 Miles of water mains
• 404 Fire hydrants
• 3,543 Customers

The total water production is 1,005,661 gallons per year, or 2,755,236 gallons per day.