Local water
Lancaster County, PA Water: Local Findings and Pipe Projects
Learn what public reports say about Lancaster County water quality, streams, private wells, sewer planning, and water main repairs.
Lancaster County includes farms, towns, and cities. Water needs and water sources can differ from one place to the next. Some homes use public water. Others have a private well. A county report about streams does not tell you the test results for a home’s tap.
What do public water reports say?
Pennsylvania’s 2025 clean-water snapshot says Lancaster County has five major watersheds. It reports that about 71 percent of the county’s 1,499 stream miles are impaired. The report tracks nitrogen, phosphorus, and sediment. These are pollution concerns for streams and the Chesapeake Bay. They are not test results for every public water system or private well. The same report says local work since 2021 reduced estimated nitrogen and phosphorus loads, while more reductions are still needed. Read the Pennsylvania DEP snapshot (opens in a new tab).
The City of Lancaster posts its own yearly drinking-water report. That report covers the city’s water system. People outside that system should use the report from their own water provider. See Lancaster City water reports (opens in a new tab).
How old are local water pipes?
Some pipe replacement projects give a clear picture of local infrastructure work. A state project in the Elizabethtown area plans to replace about 33,805 feet of old cast-iron water mains. The plan also includes more than 1,300 service line replacements. It serves parts of Elizabethtown Borough, Mount Joy Township, and West Donegal Township. This is a project in named areas; it does not describe every water pipe in Lancaster County. Read the state project announcement (opens in a new tab).
In one Lancaster City planning area, a report describes a 20-inch water main built in the late 1800s and relined in 2005. A liner is added inside a pipe to help renew it. This is one known pipe, not the age of every city or county pipe. See the city planning report (opens in a new tab).
Lancaster City also has a combined sewer system in some areas. This means rainwater and sewage can enter the same pipes. During very heavy rain, the system can reach its limit and release a mix of stormwater and sewage. The city has projects to reduce these overflows and improve water quality. These findings apply to Lancaster City’s system, not every sewer in Lancaster County. Read about Lancaster’s sewer project (opens in a new tab).
Lancaster County has a public map project for water and sewer service areas and capacity. Some pipe and system details are kept private for safety and are not open to the public. The map shows why a county-wide pipe-age claim would be misleading: many local providers own and operate separate systems. See the county’s water and sewer mapping project (opens in a new tab).
