EPA SDWIS DataPennsylvania

Arsenic in Pennsylvania Drinking Water

Pennsylvania has 22,622 public water systems. 19019 have recorded arsenic violations.

Total Systems

22,622

With Violations

19,019

EPA MCL

0.01

Population Served

12.6M

Arsenic in Pennsylvania: Key Facts

Total Water Systems

22,622

Systems with Violations

19,019

Lead Violations

1,206

Copper Violations

970

EPA Standard

0.01 mg/L

MCLG (goal): 0 mg/L

Water Systems with Violations in Pennsylvania

SystemPopulationViolations
CONGREGATION OHR MENACHEM309908
STOCKTON WATER SYSTEM857105
SALEM HEIGHTS ESTATE626572
SCOTT MOBILE HOME PARK645814
PA AMERICAN AUDUBON8K5456
AQUA PA SUN VALLEY1204752
GAHAGEN WATER ASSN494465
LYON HILLS HOA753749

Health Effects of Arsenic Exposure

Cancer risk

Skin, bladder, and lung cancers with long-term exposure

Cardiovascular effects

Increased risk of heart disease and stroke

Diabetes risk

Associated with increased risk of type 2 diabetes

Increased risk of cancer (skin, bladder, lung). Thickening and discoloration of skin; numbness; circulatory problems.

Frequently Asked Questions

Is there arsenic in Pennsylvania water?

Pennsylvania has 22,622 public water systems. 19019 have recorded arsenic violations based on EPA SDWIS data. If you are on a private well, your water is not covered by these regulations and should be tested independently.

How can I check my Pennsylvania water for arsenic?

Search for your water system using the WaterCheck system lookup, or contact your utility and request a copy of your Consumer Confidence Report (CCR). The CCR is published annually and lists all detected contaminants, their levels, and the EPA MCLs. For private wells, contact a state-certified lab for independent testing.

What is the EPA limit for arsenic?

The EPA Maximum Contaminant Level (MCL) for arsenic is 0.01 mg/L. Systems that exceed MCLs are required to notify customers and take corrective action.

Arsenic at a Glance

Categorymetalloid
EPA MCL0.01 mg/L

Source

Erosion of natural deposits; runoff from orchards; runoff from glass and electronics production wastes

How to Filter Arsenic

  • +Reverse osmosis effectively removes arsenic
  • +Distillation also removes arsenic
  • +Standard carbon filters do NOT remove arsenic reliably
  • +Test well water annually if on a private well