The Power of Information

National Drinking Water Database


Simazine in Pennsylvania


Simazine is a widely used herbicide that has been associated with endocrine disruption and cancer in experimental studies. [read more]

The Most Polluted Communities in Pennsylvania

6 water utilities reported detecting Simazine in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Simazine level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Keenhold Assoc Water Sys
PA
401 of 12 ppb
(2 ppb)
2Green Grove Trailer Ct
Greencastle, PA
491 of 20.5 ppb
(0 to 1 ppb)
3Polk Center
Polk, PA
1,1001 of 110.09 ppb
(0 to 1.04 ppb)
4Red Lion
Red Lion, PA
13,4302 of 50.06 ppb
(0 to 0.2 ppb)
5Philadelphia Water Department
Philadelphia, PA
1,600,0002 of 50.02 ppb
(0 to 0.08 ppb)
6City of Lancaster
Lancaster, PA
120,0001 of 120.02 ppb
(0 to 0.2 ppb)

Health Based Limits for Simazine

StandardDescriptionLevel
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.4 ppb
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.4 ppb
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.4 ppb
Drinking Water Equivalent LevelA lifetime exposure concentration protective of adverse, noncarcinogenic health effects, that assumes all of the exposure to a contaminant is from drinking water. Source: U.S. Environmental Protection Agency.700 ppb

Violation Summary for Simazine 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 regularly116
Over maximum contaminant level, Average1