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National Drinking Water Database

Hexachlorocyclopentadiene in Arkansas

Hexachlorocyclopentadiene is an industrial pollutant discharged from chemical factories. [read more]

The Most Polluted Communities in Arkansas

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

Ranked by highest average Hexachlorocyclopentadiene level

RankSystem Population Served Positive test results of total reported tests Average Level
1Pangburn Waterworks
Pangburn, AR
2,4641 of 10.08 ppb
(0.08 ppb)
2Mount Ida Waterworks
Mount Ida, AR
2,4581 of 20.06 ppb
(0 to 0.13 ppb)
3Danville Waterworks
Danville, AR
2,6932 of 30.03 ppb
(0 to 0.05 ppb)
4Little River Co Rda
Foreman, AR
4,2502 of 20.02 ppb
(0.02 ppb)
5Alma Waterworks
Alma, AR
5,0004 of 160.02 ppb
(0 to 0.17 ppb)
6Clinton Waterworks
Clinton, AR
6,2852 of 20.02 ppb
(0.02 ppb)
7Madison Co Regional Water
Rogers, AR
12,2492 of 20.02 ppb
(0.01 to 0.02 ppb)
8N Garland Co Reg Water Dist
Hot Springs, AR
5,2351 of 20.02 ppb
(0 to 0.03 ppb)
9Benton Waterworks
Benton, AR
18,1002 of 4< 0.01 ppb
(0 to 0.02 ppb)
10Benton-Washington Regional Pwa
Rogers, AR
33,9891 of 4< 0.01 ppb
(0 to 0.03 ppb)

Health Based Limits for Hexachlorocyclopentadiene

EPA Human Health Water Quality CriteriaWater quality criteria set by the US EPA provide guidance for states and tribes authorized to establish water quality standards under the Clean Water Act (CWA) to protect human health. These are non-enforceable standards based upon exposure by both drinking water and the contribution of water contamination to other consumed foods. Source: U.S. Environmental Protection Agency.40 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.50 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.50 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.50 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.200 ppb

Violation Summary for Hexachlorocyclopentadiene in Arkansas

There are no violations reported for this contaminant in Arkansas