The Power of Information

National Drinking Water Database


Radium-228 in Pennsylvania


Radium-228 is a radioactive element usually found around uranium deposits. [read more]

The Most Polluted Communities in Pennsylvania

276 water utilities reported detecting Radium-228 in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Radium-228 level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Christiana Muni Water Auth
Christiana, PA
1,1001 of 14.7 pCi/L
(4.7 pCi/L)
2Perry Phillips Mobile Homes
Coatesville, PA
607 of 103.07 pCi/L
(0 to 9.2 pCi/L)
3Mountaintop Mobilehome Park
King Of Prussia, PA
1155 of 63.06 pCi/L
(0 to 7.99 pCi/L)
4Silver Spring Water Assn
Chambersburg, PA
11016 of 172.69 pCi/L
(0 to 3.82 pCi/L)
5Stoneyhill Mhp
West Chester, PA
16011 of 121.91 pCi/L
(0 to 3.85 pCi/L)
6Town and Country Estates
Mansfield, PA
2003 of 41.9 pCi/L
(0 to 3.6 pCi/L)
7Delaware Water Gap
Delaware Water Gap, PA
8501 of 11.88 pCi/L
(1.88 pCi/L)
8Green Twp Mun Auth Barr Slope
Commodore, PA
2854 of 41.85 pCi/L
(1.3 to 2.2 pCi/L)
9Dover Twp Water Sys
Dover, PA
14,6401 of 11.77 pCi/L
(1.77 pCi/L)
10Wyalusing Valley Pch
Wyalusing, PA
592 of 41.68 pCi/L
(0 to 4.8 pCi/L)

Health Based Limits for Radium-228

StandardDescriptionLevel
Maximum Contaminant Limit Goal (MCLG)A non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.0 pCi/L
California Public Health GoalsDefined by the State of California Office of Environmental Health Hazard Assessment (OEHHA) as the level of contaminant that is allowed in drinking water. For acutely toxic substances, levels are set at which scientific evidence indicates that no known or anticipated adverse effects on health will occur, plus an adequate margin-of safety. PHGs for carcinogens or other substances which can cause chronic disease shall be based solely on health effects without regard to cost impacts and shall be set at levels which OEHHA has determined do not pose any significant risk to health.0.02 pCi/L
Maximum Contaminant Limit (MCL)The enforceable standard which defines the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to health-based limits (Maximum Contaminant Level Goals, or MCLGs) as feasible using the best available analytical and treatment technologies and taking cost into consideration. Source: U.S. Environmental Protection Agency.5 pCi/L
Maximum Contaminant Limit (MCL)The enforceable standard which defines the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to health-based limits (Maximum Contaminant Level Goals, or MCLGs) as feasible using the best available analytical and treatment technologies and taking cost into consideration. Source: U.S. Environmental Protection Agency.5 pCi/L

Violation Summary for Radium-228 in Pennsylvania

Data from the U.S. Environmental Protection Agency includes the following violations of federal standards in Pennsylvania since 2004

Violation TypeNumber of Violations
Failure to monitor regularly542