The Power of Information

National Drinking Water Database


Monochloroacetic acid in Illinois


Monochloroacetic acid is a disinfection byproduct regulated by EPA as one of five haloacetic acids that are formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water. [read more]

The Most Polluted Communities in Illinois

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

Ranked by highest average Monochloroacetic acid level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Hoffman Rwd
Carlyle, IL
1,15310 of 2412.1 ppb
(0 to 61 ppb)
2Colchester
Colchester, IL
1,7505 of 1011.17 ppb
(0 to 63 ppb)
3Ellery Water Corp
Albion, IL
1,9191 of 410.83 ppb
(0 to 43.33 ppb)
4Findlay
Findlay, IL
8001 of 110.2 ppb
(10.2 ppb)
5St Peter
St Peter, IL
3873 of 88.15 ppb
(0 to 33.7 ppb)
6Windwood Water System, Inc.
Galesburg, IL
1851 of 48 ppb
(0 to 32 ppb)
7Beecher City
Beecher City, IL
5431 of 47.88 ppb
(0 to 31.5 ppb)
8Windsor
Windsor, IL
1,2004 of 46.7 ppb
(3.7 to 12.7 ppb)
9New Windsor
New Windsor, IL
7201 of 26.35 ppb
(0 to 12.7 ppb)
10Damiansville
Damiansville, IL
6647 of 224.79 ppb
(0 to 44 ppb)

Health Based Limits for Monochloroacetic acid

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.60 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.70 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.70 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
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.350 ppb

Violation Summary for Monochloroacetic acid in Illinois

There are no violations reported for this contaminant in Illinois