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 |
|---|---|---|---|---|
|
Holiday Inn Grantville Dauphin County |
500 | 2 | 0 | |
|
Pike County Correctional Facil Pike County |
500 | 6 | 0 | |
|
Rouseville Mun Waterworks Venango County |
500 | 5 | 0 | |
|
Karns Food Perry County |
499 | 2 | 0 | |
|
Somerset Twp MA Reading Mines Somerset County |
494 | 3 | 0 | |
|
Fryburg Water Company Clarion County |
490 | 2 | 0 | |
|
Mid Lakes Development Carbon County |
490 | 5 | 3 | |
|
Palm City Park Lebanon County |
490 | 9 | 1 | |
|
W Carroll Twp W Auth ST Bened Cambria County |
488 | 6 | 0 | |
|
Marianna Muni Water Works Washington County |
480 | 5 | 1 | |
|
Nottingham Manor M H Court Chester County |
473 | 3 | 0 | |
|
Appleville Mobile Home Park Chester County |
461 | 2 | 0 | |
|
Shanksville Stonycreek Sch Somerset County |
460 | 1 | 0 | |
|
Blue Heron Homeowners Assoc Carbon County |
450 | 8 | 0 | |
|
Harrisburg Christian Sch Dauphin County |
450 | 1 | 0 | |
|
West Hickory Water Company Forest County |
450 | 2 | 0 | |
|
Moore Elementary School Northampton County |
448 | 2 | 0 | |
|
Toby Water Elk County |
440 | 3 | 0 | |
|
Loyalsock Valley Elementary Lycoming County |
430 | 6 | 0 | |
|
Moraine Elementary School Butler County |
424 | 1 | 0 | |
|
Ralston Area Joint Authority Lycoming County |
400 | 7 | 2 | |
|
Walmar Manor MHP York County |
400 | 7 | 0 | |
|
Whispering Hollow-South MHP Northampton County |
400 | 3 | 0 | |
|
Riverview Estates Lehigh County |
375 | 3 | 0 | |
|
White Haven Center Luzerne County |
375 | 1 | 0 | |
|
Washington Estates II MHC LLC Washington County |
373 | 4 | 0 | |
|
Cooperstown Water Company Venango County |
360 | 8 | 0 | |
|
Washington Estates MHC LLC Washington County |
358 | 3 | 0 | |
|
Abraxas Youth and Family Forest County |
350 | 1 | 0 | |
|
Caesars Brookdale on the Lake Monroe County |
350 | 3 | 1 | |
|
Hickory Run Service Plaza Carbon County |
350 | 3 | 2 | |
|
New Oxford Manor MHP Adams County |
350 | 5 | 0 | |
|
Northern Potter Childrens Sch Potter County |
340 | 2 | 1 | |
|
New Albany Water Fund Bradford County |
336 | 4 | 1 | |
|
West Buffalo Twp Mun Auth Union County |
333 | 7 | 0 | |
|
Bloss Township Waterworks Tioga County |
325 | 3 | 0 | |
|
Conestoga Elem Sch Lancaster County |
325 | 2 | 0 | |
|
Coaldale Six Mile Run Water Bedford County |
320 | 9 | 1 | |
|
Evergreen Village MHP Northampton County |
316 | 3 | 0 | |
|
Montgomery School Chester County |
300 | 4 | 1 | |
|
Neshaminy Warwick Pres Church Bucks County |
300 | 3 | 0 | |
|
Paradise Point Wayne County |
300 | 5 | 0 | |
|
Reserve and Ridge at Hilltown Bucks County |
300 | 3 | 0 | |
|
Tamarack & Spread Eagle MHP Lancaster County |
300 | 4 | 0 | |
|
Exeter Blakeslee Lot 100 Carbon County |
285 | 4 | 1 | |
|
Addison Area Water Auth Somerset County |
284 | 7 | 0 | |
|
Country Pines MHP Luzerne County |
280 | 8 | 3 | |
|
Oakwood Lake Village MHP Wyoming County |
273 | 6 | 2 | |
|
Pvsd Chestnuthill Elementary Monroe County |
272 | 1 | 0 | |
|
Hoffman Homes for Youths INC Adams County |
270 | 2 | 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.