The Power of Information

National Drinking Water Database


Chlorite in Arkansas


Chlorite is a disinfection byproduct resulting from water treatment with chlorine dioxide, or from the use of chlorine dioxide as a bleaching agent for cellulose, paper pulp, flour and oils. [read more]

The Most Polluted Communities in Arkansas

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

Ranked by highest average Chlorite level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Magnolia Waterworks
Magnolia, AR
11,00024 of 24336.75 ppb
(28 to 628 ppb)
2Waldron Waterworks
Waldron, AR
4,32519 of 28294.82 ppb
(0 to 689.33 ppb)
3Searcy Waterworks
Searcy, AR
22,03656 of 56285.79 ppb
(29.33 to 552.33 ppb)
4Greenwood Waterworks
Greenwood, AR
8,29040 of 66227.37 ppb
(0 to 774.33 ppb)
5Hope Water Light Comm
Hope, AR
11,40522 of 22123.42 ppb
(15.37 to 405 ppb)
6Montgonery Co Regional Pwa
Mount Ida, AR
635 of 865.54 ppb
(0 to 152.67 ppb)
7Texarkana Water Utilities
Texarkana, AR
28,7754 of 660.64 ppb
(0 to 157.33 ppb)

Health Based Limits for Chlorite

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.800 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.800 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.840 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.840 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.1000 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.1000 ppb

Violation Summary for Chlorite in Arkansas

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

Violation TypeNumber of Violations
Monitoring and Reporting Disinfection Byproduct Rule5