Residents of Letterkenny Township, who do not have their own on-lot sewage disposal systems, have public sewer service provided by one of three organizations listed below.  The Letterkenny Township Municipal Authority (LTMA) Sewage Treatment Plant was sold to the York Water Company in September of 2020.

Cumberland Franklin Joint Municipal Authority (CFJMA)

Phone:  717-532-6949

Website:  http://www.cfjma.com

Hamilton Township Municipal Authority (HTMA)

Phone:  717-264-8959

Website:  http://www.htmapa.com

The York Water Company (formerly LTMA)

Phone: 717-845-3601

Email: customer.service@yorkwater.com

Website: https://www.yorkwater.com