Barium violations in Pennsylvania
122 active public water systems in Pennsylvania had a Barium violation in the past three years. What Barium is and why it matters.
Health effects: Short-term exposure above the MCL can cause increases in blood pressure. Chronic exposure is associated with cardiovascular effects, kidney damage, and gastrointestinal disturbance. The general population is at risk; those with pre-existing hypertension or kidney disease face greater concern.
Systems with a Barium violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Ctma Sagamore Armstrong County |
300 | 5 | 0 | |
|
Penn 80 Milton Northumberland County |
300 | 9 | 0 | |
|
Union Square Bucks County |
300 | 3 | 0 | |
|
Addison Area Water Auth Somerset County |
284 | 7 | 0 | |
|
Halifax Village Dauphin County |
272 | 9 | 0 | |
|
Cogan Valley Mobile Home Park Lycoming County |
250 | 10 | 1 | |
|
Great Dane Limited Partnership Montour County |
250 | 4 | 0 | |
|
Mary D Community Association Schuylkill County |
250 | 7 | 0 | |
|
Crestview Village MHP Dauphin County |
223 | 9 | 0 | |
|
Somerset Twp Mun Auth Listie Somerset County |
218 | 5 | 0 | |
|
Defiance Water Assn Bedford County |
205 | 9 | 1 | |
|
Maple Lane Estates Luzerne County |
200 | 6 | 3 | |
|
Pinecrest Village MHP Lycoming County |
195 | 12 | 3 | |
|
Locust Grove Retirement Home Juniata County |
177 | 3 | 1 | |
|
Plumstead Christian Lower Schl Bucks 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 | |
|
Country Crest MHP Luzerne County |
150 | 7 | 1 | |
|
Vali-View Mobile Home Park Lycoming County |
150 | 11 | 1 | |
|
Monument Water Authority Centre County |
140 | 11 | 0 | |
|
Deann Village MHP Dauphin County |
135 | 10 | 0 | |
|
Brookside Commons Crawford County |
125 | 10 | 0 | |
|
Milford Senior Care Pike County |
110 | 9 | 1 | |
|
Delaware Plaza Pike County |
107 | 7 | 1 | |
|
Alphabet Garden Childcare Bucks County |
100 | 6 | 0 | |
|
Centre County MHC LLC Centre County |
100 | 10 | 0 | |
|
Viant Westfield Plant Tioga County |
100 | 4 | 0 | |
|
Abwe York County |
95 | 4 | 0 | |
|
Pine Valley Estates Butler County |
93 | 8 | 0 | |
|
Success Rehabilitation Bucks County |
90 | 4 | 0 | |
|
Franklin Mobile Home Village Butler County |
80 | 9 | 1 | |
|
Springfield Village Erie County |
80 | 9 | 0 | |
|
Weidas Mobile Home Park Susquehanna County |
77 | 4 | 2 | |
|
Hanover Commons Bucks County |
75 | 6 | 0 | |
|
Jackson Commerce Park W S Mercer County |
75 | 8 | 0 | |
|
Helping Hands, Inc. Montgomery County |
70 | 4 | 0 | |
|
Panorama MHP Adams County |
70 | 6 | 0 | |
|
Youngs Mobile Home Park Butler County |
63 | 4 | 0 | |
|
HY Vue Acres MHP Butler County |
62 | 10 | 1 | |
|
Salem Heights Estate Wayne County |
62 | 13 | 4 | |
|
Denny Ridge Mobile Home Park Crawford County |
60 | 8 | 0 | |
|
Elderberry MHP Crawford County |
60 | 8 | 0 | |
|
Sunset Ridge Rehab Ctr Columbia County |
60 | 6 | 1 | |
|
Trinity Episcopal Church Bucks County |
58 | 3 | 0 | |
|
Ridgecrest Monroe County |
55 | 7 | 1 | |
|
Colonial Glenn Estates Beaver County |
50 | 8 | 0 | |
|
Country Glen Townhomes Monroe County |
50 | 10 | 3 | |
|
Seeds to Saplings Pike County |
50 | 7 | 0 | |
|
Sky View Terrace Beaver County |
50 | 7 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Barium, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Barium 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.