Chlorine (MRDL) violations in Pennsylvania
429 active public water systems in Pennsylvania had a Chlorine (MRDL) violation in the past three years, 66 of them in the latest quarter of EPA's data. What Chlorine (MRDL) is and why it matters.
Systems with a Chlorine (MRDL) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Northern Potter High School Potter County |
265 | 2 | 0 | |
|
Upland Country Day School Chester County |
265 | 1 | 0 | |
|
Pine Grove Estates Wayne County |
263 | 7 | 0 | |
|
Giorgio Fresh Berks County |
260 | 2 | 0 | |
|
Blue Springs Terrace Montour County |
250 | 4 | 0 | |
|
Hawk Valley Village Lancaster County |
250 | 3 | 0 | |
|
Kinsley Commercial Plaza Monroe County |
250 | 1 | 0 | |
|
Meadows Mobile Home Park Westmoreland County |
250 | 6 | 3 | |
|
Spring Valley Fayette County |
250 | 5 | 0 | |
|
Willow Haven North MHP Northampton County |
240 | 2 | 0 | |
|
Crestview Village MHP Dauphin County |
223 | 9 | 0 | |
|
Omnova North America INC Schuylkill County |
220 | 3 | 1 | |
|
Somerset Twp Mun Auth Listie Somerset County |
218 | 5 | 0 | |
|
Zerbe Sisters Lancaster County |
210 | 2 | 0 | |
|
Sugarcreek Water CO Venango County |
205 | 2 | 0 | |
|
Cobbs Lake Preserve Wayne County |
200 | 5 | 1 | |
|
Creekview MHP Chester County |
200 | 8 | 0 | |
|
Forest Brook MHP Beaver County |
200 | 7 | 0 | |
|
Limestone Twp Mun Auth Union County |
200 | 5 | 0 | |
|
Nvr Bldg Prod Beaver County |
200 | 4 | 0 | |
|
Town and Country Estates Bradford County |
200 | 2 | 0 | |
|
Brinton Manor Delaware County |
196 | 8 | 0 | |
|
Plumer Water Company Venango County |
185 | 1 | 0 | |
|
Pvsd Polk Elemenary School Monroe County |
185 | 4 | 2 | |
|
Arbour Court Chester County |
180 | 3 | 0 | |
|
Glades Pike Estates MHP LLC Somerset County |
180 | 2 | 0 | |
|
Martins Community LP MHP Chester County |
180 | 4 | 0 | |
|
Rolling Valley Estates Butler County |
180 | 4 | 0 | |
|
Godshalls Quality Meats INC Montgomery County |
175 | 4 | 0 | |
|
Bernies Mobile Home Park Butler County |
170 | 8 | 1 | |
|
Greater Johnstown WA Saltlick Cambria County |
170 | 9 | 0 | |
|
Happy Acres Development Lackawanna County |
168 | 12 | 2 | |
|
Gateway Restaurant Bedford County |
165 | 3 | 0 | |
|
Londonderry Court MHP Chester County |
160 | 5 | 0 | |
|
Hopewell Furnace Nhs Berks County |
150 | 2 | 0 | |
|
Knob Vue Estates Beaver County |
150 | 5 | 0 | |
|
Lakeview Manor MHP Crawford County |
150 | 6 | 1 | |
|
Mahantongo Elementary School Schuylkill County |
150 | 1 | 0 | |
|
Rocky Ridge Village Venango County |
150 | 1 | 0 | |
|
Audubon Park York County |
145 | 3 | 1 | |
|
Messiah Evan Luth CH Perry County |
145 | 3 | 0 | |
|
Calamus Estates Lancaster County |
140 | 4 | 0 | |
|
Big Bass Lake Water Assoc. Wayne County |
130 | 10 | 3 | |
|
Woodside Mobile Home Park Lehigh County |
130 | 2 | 0 | |
|
Pocono Mobile Home Estates Monroe County |
129 | 7 | 3 | |
|
Himalayan Institute Wayne County |
124 | 7 | 0 | |
|
Stone Barn Rentals Chester County |
120 | 5 | 1 | |
|
Twin Pines Health Care Center Chester County |
120 | 4 | 0 | |
|
Wash Crossing CO OP Nursery Bucks County |
118 | 3 | 0 | |
|
Salemville Water Assn Bedford County |
115 | 1 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Chlorine (MRDL), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Chlorine (MRDL) 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.