Water System

Wastewater Treatment

Water System

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 Vitro (formerly PPG) began production, serving the Vitro 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.

As of December 31, 2020, the water system serving South Middleton Township consists of:

  • 3 Well houses
  • 4 Storage tanks, containing a total of 7.5 million gallons of water in reserve
  • 75 Miles of water mains
  • 467 Fire hydrants
  • 4,378 Customers

The total water production for 2020 was 894,301,000 gallons, or 2,450,140 gallons per day.


Last Update: January 12, 2021

Wastewater Treatment

The wastewater treatment plant is located on the Yellow Breeches Stream, East of Boiling Springs, at 345 Lear Lane.

The plant began operation on July 20, 1977, was upgraded in 2016, and is of the Integrated Fixed-film Activated Sludge (IFAS) type with aerobic digestion of biosolids.

The original plant has a permitted capacity of .75 MGD (Million Gallons per Day), which was increased to 1.5 MGD in 2016.

65,000 square feet of reed beds were also constructed to improve biosolids processing. The reed bed system utilizes aquatic plants to dewater the biosolids and increases storage capacity.

As of December 31, 2020, the sewer system consisted of:

  • 1.5 MGD treatment facility
  • 11 Regional pumping stations
  • 78 Miles of sewer mains
  • 4,850 Customers

In addition to it’s own plant capacity, the South Middleton Township Municipal Authority owns 233,000 GPD capacity in the Mt. Holly Springs treatment plant, and 1.01 MGD in the Carlisle Borough treatment plant, in order to service South Middleton residents in those areas.