The Power of Information

National Drinking Water Database


Cyanide in Arkansas


Cyanide is a chemical used in mining and steel/metal, plastic, and pesticide manufacturing; it is applied to roads as road salts, and small quantities occur naturally in some plants. [read more]

The Most Polluted Communities in Arkansas

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

Ranked by highest average Cyanide level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Rambo Riviera SD Waterworks
Rogers, AR
838 of 15165.47 ppb
(0 to 570 ppb)
2MT Sherman Water Association
Jasper, AR
7322 of 3160 ppb
(0 to 420 ppb)
3Benton Co Water
Avoca, AR
4,4207 of 11150.91 ppb
(0 to 420 ppb)
4Mockingbird Hill Water Assoc
Jasper, AR
6939 of 16103.75 ppb
(0 to 430 ppb)
5Leisure Hills Mobile Home Park
Bentonville, AR
1176 of 1465.86 ppb
(0 to 350 ppb)
6Wilburn Water Association
Wilburn, AR
6401 of 360 ppb
(0 to 180 ppb)
7Decatur Waterworks
Decatur, AR
1,58911 of 2356.3 ppb
(0 to 330 ppb)
8East Newton County Water Assn
Vendor, AR
1,5281 of 340 ppb
(0 to 120 ppb)
9Wilmot Waterworks
Wilmot, AR
8981 of 240 ppb
(0 to 80 ppb)
10Bearden Waterworks
Bearden, AR
2,1191 of 240 ppb
(0 to 80 ppb)

Health Based Limits for Cyanide

StandardDescriptionLevel
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.80 ppb
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.140 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.150 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.200 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.200 ppb
Children's health-based limit for 1-day exposureConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for up to one day of exposure. The One-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency.200 ppb
Children's health-based limit for 10-day exposureConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic effects for up to ten days of exposure. The Ten-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency.200 ppb
Lifetime health-based limit, non-cancer riskConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for a lifetime of exposure. The Lifetime health-based limit (or Health Advisory, HA) is based on exposure for a a 70-kg adult consuming 2 liters of water per day. Source: U.S. Environmental Protection Agency.200 ppb

Violation Summary for Cyanide in Arkansas

There are no violations reported for this contaminant in Arkansas