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National Drinking Water Database


Total haloacetic acids (HAAs) in Kentucky


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 Kentucky

211 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)
1Dawson Springs Water & Sewer
Dawson Springs, KY
3,89410 of 1069.93 ppb
(42.5 to 130.7 ppb)
2Hartford Municipal Water Works
Hartford, KY
3,46510 of 1063.91 ppb
(2.7 to 87.8 ppb)
3Kuttawa Water Department
Kuttawa, KY
1,37010 of 1062.62 ppb
(42.5 to 108.95 ppb)
4Beattyville Water Works
Beattyville, KY
7,35210 of 1061.14 ppb
(21.4 to 116.2 ppb)
5Salyersville Municipal Water
Salyersville, KY
3,2509 of 959.41 ppb
(14.75 to 130.73 ppb)
6Simpson County Water District
Bowling Green, KY
9,1119 of 958.41 ppb
(44 to 81.8 ppb)
7Booneville Water and Sewer
Booneville, KY
5,77510 of 1057.13 ppb
(14.6 to 139.2 ppb)
8Mckee Water Works
Mckee, KY
2,2119 of 956.41 ppb
(29 to 81.5 ppb)
9Williamstown Municipal Water Dept
Williamstown, KY
6,10512 of 1255 ppb
(33.05 to 99.2 ppb)
10Monticello Water & Sewer Commission
Monticello, KY
25,7409 of 954.62 ppb
(36.55 to 72.83 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 Kentucky

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

Violation TypeNumber of Violations
Over maximum contaminant level, Average218
Monitoring and Reporting Disinfection Byproduct Rule91