The Power of Information

National Drinking Water Database

Atrazine in Pennsylvania

Atrazine is an endocrine-disrupting herbicide used on corn, sugarcane and sorghum; it is associated with adverse reproductive effects and toxicity to the immune system. [read more]

The Most Polluted Communities in Pennsylvania

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

Ranked by highest average Atrazine level

RankSystem Population Served Positive test results of total reported tests Average Level
1Keenhold Assoc Water Sys
401 of 12 ppb
(2 ppb)
2Green Grove Trailer Ct
Greencastle, PA
491 of 20.5 ppb
(0 to 1 ppb)
3Aqua PA Shenango Valley Wtp
Sharon, PA
48,0001 of 40.27 ppb
(0 to 1.06 ppb)
4Windy Brae Mhp
Stewartstown, PA
2501 of 20.25 ppb
(0 to 0.5 ppb)
5Curryville Water Auth
Curryville, PA
854 of 50.22 ppb
(0 to 0.5 ppb)
6MT Joy Boro Auth
Mt. Joy, PA
8,3044 of 50.18 ppb
(0 to 0.34 ppb)
7State College Boro Water Auth.
State College, PA
47,0007 of 70.17 ppb
(0.08 to 0.33 ppb)
8Warriors Mark Gen Water Auth
Warriors Mark, PA
4757 of 70.14 ppb
(0.1 to 0.3 ppb)
9Pinehurst Manor
Lancaster, PA
471 of 60.14 ppb
(0 to 0.83 ppb)
10Chester Water Authority
Chester, PA
124,6494 of 100.12 ppb
(0 to 0.5 ppb)

Health Based Limits for Atrazine

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.0.15 ppb
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.3 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.3 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 Atrazine 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 regularly109