Total Haloacetic Acids (HAA5) violations in Pennsylvania
505 active public water systems in Pennsylvania had a Total Haloacetic Acids (HAA5) violation in the past three years, 32 of them in the latest quarter of EPA's data. What Total Haloacetic Acids (HAA5) is and why it matters.
Systems with a Total Haloacetic Acids (HAA5) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Palm City Park Lebanon County |
490 | 9 | 1 | |
|
Brookside Village MHP Columbia County |
475 | 9 | 0 | |
|
ST Petersburg Municipal Water Clarion County |
465 | 7 | 0 | |
|
Lake Arthur Estates Butler County |
460 | 6 | 1 | |
|
Rayburn Twp Joint Muni Auth Armstrong County |
460 | 2 | 0 | |
|
Martic Twp Elem Sch Lancaster County |
456 | 1 | 0 | |
|
Westover Municipal Authority Clearfield County |
456 | 2 | 0 | |
|
Amblebrook Adams County |
450 | 1 | 0 | |
|
Genesee Twp Water Authority Potter County |
450 | 11 | 1 | |
|
Three Springs Boro Water CO Huntingdon County |
442 | 3 | 0 | |
|
Longwood Gardens Chester County |
440 | 5 | 0 | |
|
Toby Water Elk County |
440 | 3 | 0 | |
|
Big Spring Terrace MHP Cumberland County |
439 | 4 | 0 | |
|
Miles Twp Water Auth East Centre County |
425 | 4 | 1 | |
|
Pine Valley Mobile Home Court Union County |
425 | 4 | 0 | |
|
Porter Township Municipal Auth Clinton County |
425 | 2 | 0 | |
|
Red Rock Job Corps Center Sullivan County |
425 | 4 | 0 | |
|
Laceyville Water CO Wyoming County |
415 | 1 | 0 | |
|
Lutheran Home at Topton Berks County |
410 | 1 | 0 | |
|
Gretna Springs Lebanon County |
405 | 4 | 0 | |
|
Loganton Boro Water System Clinton County |
402 | 2 | 0 | |
|
Hamlin Water Company Wayne County |
400 | 6 | 0 | |
|
New Drums Elementary School Luzerne County |
400 | 2 | 0 | |
|
Ralston Area Joint Authority Lycoming County |
400 | 7 | 2 | |
|
Sru Middle School Bradford County |
400 | 3 | 0 | |
|
Village Ctr at Lords Valley Pike County |
400 | 4 | 1 | |
|
ST Clairsville Water Company Bedford County |
392 | 5 | 1 | |
|
Birchwood Trailer Park Monroe County |
389 | 5 | 1 | |
|
Waterford Waterworks Westmoreland County |
389 | 8 | 0 | |
|
Hickory Hill Country Village Erie County |
375 | 9 | 0 | |
|
MT Gretna Campmeeting Assn Lebanon County |
375 | 1 | 0 | |
|
Washington Estates II MHC LLC Washington County |
373 | 4 | 0 | |
|
West Penn Elementary Schuylkill County |
360 | 4 | 0 | |
|
Henderson Township Mun Auth Jefferson County |
354 | 5 | 1 | |
|
Caesars Brookdale on the Lake Monroe County |
350 | 3 | 1 | |
|
Jefferson Twp Water and Sewer Somerset County |
350 | 2 | 0 | |
|
Autumn Hills Water Company Crawford County |
338 | 3 | 0 | |
|
New Albany Water Fund Bradford County |
336 | 4 | 1 | |
|
West Buffalo Twp Mun Auth Union County |
333 | 7 | 0 | |
|
Lehigh Valley Dairies Ntnc Montgomery County |
328 | 1 | 0 | |
|
Liberty Elementary School Tioga County |
325 | 1 | 0 | |
|
North Star East Mid Sch Somerset County |
325 | 1 | 0 | |
|
Village of Four Seasons Susquehanna County |
325 | 5 | 1 | |
|
N Hopewell Winterstown Elem York County |
322 | 1 | 0 | |
|
Woodland Hills Wayne County |
320 | 6 | 0 | |
|
Aqua PA Water CO Elmbrook Lackawanna County |
300 | 1 | 0 | |
|
Choconut Valley Elementary Susquehanna County |
300 | 4 | 2 | |
|
Knox Township Munic Authority Jefferson County |
300 | 8 | 0 | |
|
Mignosis Foodtown Monroe County |
300 | 2 | 0 | |
|
Nelson Township Authority Tioga County |
300 | 7 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Total Haloacetic Acids (HAA5), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Total Haloacetic Acids (HAA5) 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.