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National Drinking Water Database


Total haloacetic acids (HAAs) in Oklahoma


Total haloacetic acids refers to the sum of the concentrations of five related disinfection byproducts in a water sample: dichloroacetic acid, trichloroacetic acid, monochloroacetic acid, monobromoacetic acid and dibromoacetic acid. [read more]

The Most Polluted Communities in Oklahoma

600 water utilities reported detecting Total haloacetic acids (HAAs) in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Total haloacetic acids (HAAs) level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Duchess Creek Mhp
Checotah, OK
1401 of 1168.12 ppb
(168.12 ppb)
2Kusa Rwd #3
Henryetta, OK
2101 of 1158 ppb
(158 ppb)
3LL Association Inc
Checotah, OK
2001 of 1137 ppb
(137 ppb)
4Glencoe
Glencoe, OK
4781 of 1132.03 ppb
(132.03 ppb)
5Conners Correctional Center
Hominy, OK
1,0502 of 2128.6 ppb
(121.39 to 135.82 ppb)
6Asher Util Dev Auth
Asher, OK
4191 of 1124 ppb
(124 ppb)
7Stringtown Pwa
Stringtown, OK
1,1051 of 1124 ppb
(124 ppb)
8New Lake Road Water Assn.
Henryetta, OK
421 of 1118.74 ppb
(118.74 ppb)
9Leflore Co Rwd #17
Hodgen, OK
4301 of 1106 ppb
(106 ppb)
10Oaks Mobile Home Association
Cleveland, OK
901 of 1104.53 ppb
(104.53 ppb)

Health Based Limits for Total haloacetic acids (HAAs)

StandardDescriptionLevel
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
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
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.450 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.5200 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.5200 ppb

Violation Summary for Total haloacetic acids (HAAs) in Oklahoma

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

Violation TypeNumber of Violations
Over maximum contaminant level, Average824
Monitoring and Reporting Disinfection Byproduct Rule237