Nitrate violations in Pennsylvania
790 active public water systems in Pennsylvania had a Nitrate violation in the past three years, 16 of them still unresolved. What Nitrate is and why it matters.
Systems with a Nitrate violation
Unresolved first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Greencastle Area Water Auth Franklin County |
5,500 | 3 | 0 | |
|
Drummer Boy CG Adams County |
1,100 | 1 | 0 | |
|
Walmar Manor MHP York County |
400 | 7 | 0 | |
|
Flatbush GC Adams County |
200 | 1 | 0 | |
|
Molly Pitcher Mini Mall Franklin County |
200 | 2 | 0 | |
|
Olivias Restaurant INC Adams County |
100 | 3 | 1 | |
|
Route 6 Campground Tioga County |
100 | 4 | 2 | |
|
Turkey Hill Minit Mkt 60 Lancaster County |
100 | 3 | 0 | |
|
Omas Family Campground Lancaster County |
75 | 3 | 0 | |
|
Panorama MHP Adams County |
70 | 6 | 0 | |
|
Honey Run Golf CC York County |
50 | 1 | 0 | |
|
Loyalsock Hotel Lycoming County |
50 | 2 | 0 | |
|
Mandos Italian Pizza Columbia County |
40 | 3 | 1 | |
|
Cook Riverside Cabins Forest County |
25 | 2 | 0 | |
|
Hall Station Sub Stop Lycoming County |
25 | 2 | 0 | |
|
Stavrianoudakas Cottages Monroe County |
25 | 2 | 0 | |
|
Lca Wlsa Central Division Lehigh County |
47,693 | 2 | 0 | |
|
Highland S & W Auth Beaverdam Cambria County |
22,617 | 8 | 0 | |
|
East Hempfield Water Auth Lancaster County |
20,988 | 2 | 0 | |
|
Mun Water Auth of Aliquippa Beaver County |
15,685 | 7 | 0 | |
|
Humboldt Industrial Park Luzerne County |
11,243 | 5 | 0 | |
|
Municipal Authority Sunbury Northumberland County |
11,043 | 6 | 1 | |
|
West Manchester Twp Auth York County |
9,960 | 3 | 0 | |
|
Doylestown Boro Water Dept Bucks County |
8,700 | 2 | 0 | |
|
PA American Audubon Montgomery County |
8,200 | 8 | 0 | |
|
Conemaugh Twp Muni Auth Somerset County |
7,800 | 11 | 0 | |
|
Sewickley Boro Water Auth Allegheny County |
6,800 | 5 | 1 | |
|
Manor Twp JT Muni Auth Armstrong County |
6,744 | 4 | 1 | |
|
Geisinger Medical Center Montour County |
6,442 | 3 | 0 | |
|
Kennett Square Mun Water Works Chester County |
6,328 | 9 | 1 | |
|
Beaver Boro Muni Auth Beaver County |
5,799 | 9 | 0 | |
|
PA American Dilliner System Greene County |
4,200 | 7 | 0 | |
|
Mifflinburg Boro Water Dept Union County |
3,690 | 2 | 0 | |
|
Ligonier Twp Muni Auth Westmoreland County |
3,293 | 8 | 0 | |
|
Walnutport Authority Northampton County |
3,000 | 5 | 0 | |
|
Muncy Borough Water Company Lycoming County |
2,900 | 3 | 0 | |
|
Muni Auth of Boro of Matamoras Pike County |
2,900 | 9 | 2 | |
|
Honey Brook Boro Water Chester County |
2,892 | 5 | 0 | |
|
National Pike Water Auth Fayette County |
2,800 | 2 | 0 | |
|
Bonneauville Muni Water Auth Adams County |
2,730 | 4 | 0 | |
|
Western Clinton CO Mun Auth Clinton County |
2,610 | 9 | 1 | |
|
Oley Twp Muni Auth Berks County |
2,204 | 3 | 0 | |
|
Bcra Pocono Jackson System Monroe County |
2,100 | 3 | 0 | |
|
Moraine Camplands Butler County |
2,000 | 4 | 1 | |
|
Dvsd Dingman Delaware Campus Pike County |
1,965 | 3 | 0 | |
|
E Armstrong Cnty Muni Auth Armstrong County |
1,875 | 6 | 0 | |
|
Twp of Upper Makefield Bucks County |
1,800 | 6 | 0 | |
|
East Berlin Area Joint Auth Adams County |
1,750 | 4 | 1 | |
|
Camp Morasha Wayne County |
1,700 | 2 | 0 | |
|
Marsh Creek State Park Chester County |
1,630 | 4 | 2 |
About this data
A system is counted once if any of its violations in the past three years involved Nitrate, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Nitrate alone.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Pennsylvania records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.