WTMA’s "Lititz" water system began in May, 1975 when the first water supply contract was signed with Lititz Borough. Today, there are approximately 3,000 connections to the WTMA distribution system supplied by water purchased from Lititz Borough through an Intermunicipal Agreement last amended December 27, 2001. In 1989, a separate water system was established by WTMA to serve the Rothsville area. That system now serves approximately 750 customers.

Sewer service was initiated in 1977 with the execution of an agreement with Lititz Borough for sewage treatment. Today, the sewage collection system has 17 pumping stations which pump sanitary sewerage to the Lititz Borough Sewage Treatment Plant. WTMA and Lititz Borough recently executed an agreement which guarantees WTMA residents 42.33% of the treatment capacity of the Lititz Plant. WTMA currently provides sanitary sewer service to over 4,700 properties in Warwick Township.

Through its participation in the annual Watershed Day, WTMA contributes to the education of our young people in the importance of respecting and maintaining this most valuable resource. Young people of all ages are invited to explore the "Story of Drinking Water".