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National Drinking Water Database


Dichloroacetic acid in Texas


Dichloroacetic 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 Texas

2,087 water utilities reported detecting Dichloroacetic acid in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Dichloroacetic acid level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Laurel Canyon Ranch Water System
TX
361 of 163.9 ppb
(63.9 ppb)
2Lakewood Water System
Lufkin, TX
1104 of 459.98 ppb
(47.7 to 71.2 ppb)
3City of Edgewood
Edgewood, TX
1,92014 of 1556.08 ppb
(0 to 142.2 ppb)
4Rolling Hills Subdivision
Shelbyville, TX
421 of 155.9 ppb
(55.9 ppb)
5Lakeshore Sites Water Co
Haskell, TX
1488 of 850.65 ppb
(28.2 to 85.5 ppb)
6Red River Army Depot
Texarkana, TX
2,95014 of 1548.69 ppb
(0 to 122.2 ppb)
7City of Anahuac
Anahuac, TX
3,14416 of 1646.3 ppb
(11.7 to 132 ppb)
8Smith Trailer Park Water System
Marble Falls, TX
543 of 445.85 ppb
(0 to 170.4 ppb)
9City of Center
Center, TX
5,67815 of 1544.84 ppb
(23.9 to 77.35 ppb)
10City of Rose City
Vidor, TX
92115 of 1644.32 ppb
(0 to 91.4 ppb)

Health Based Limits for Dichloroacetic acid

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.0 ppb
One in one million (10-6) Cancer RiskThe concentration of a chemical in drinking water corresponding to an excess estimated lifetime cancer risk of 1 in 1,000,000. Source: U.S. Environmental Protection Agency.0.7 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.60 ppb
One in ten thousand (10-4) Cancer RiskThe concentration of a chemical in drinking water corresponding to an excess estimated lifetime cancer risk of 1 in 10,000. Source: U.S. Environmental Protection Agency.70 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.100 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.5000 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.5000 ppb

Violation Summary for Dichloroacetic acid in Texas

There are no violations reported for this contaminant in Texas