Know Your Environment. Protect Your Health.

Haloacetic acids (HAA5)

Village Water System

Haloacetic acids are formed when disinfectants such as chlorine are added to tap water. The group of five haloacetic acids regulated by federal standards includes monochloroacetic acid, dichloroacetic acid, trichloroacetic acid, monobromoacetic acid and dibromoacetic acid. Read More.

Haloacetic acids are harmful during pregnancy and may increase the risk of cancer. Haloacetic acids are� genotoxic, which means that they induce mutations and DNA damage. Multiple studies by the National Toxicology Program have demonstrated the cancer-causing properties of individual haloacetic acids in laboratory animals. The Department of Health and Human Services is currently considering listing di- or tri-haloacetic acids for possible inclusion in its comprehensive Report on Carcinogens.

Click here to read more about disinfection byproducts.

 

128

Samples

0

Samples exceeding legal limit (MCL)

113

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.68 ppb3230ND - 4.30 ppb
20192.32 ppb3226ND - 6.10 ppb
20202.66 ppb16160.550 ppb - 7.60 ppb
20210.980 ppb1612ND - 2.20 ppb
20221.21 ppb1613ND - 2.90 ppb
20231.65 ppb16160.520 ppb - 4.40 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.1 ppb

The EWG Health Guideline of 0.1 ppb for the group of five haloacetic acids, or HAA5, was defined in a peer-reviewed scientific study by EWG and represents a one-in-a-million lifetime cancer risk level. This health guideline protects against cancer.

EPA Maximum Contaminant
Level (MCL): 60 ppb

The legal limit for the group of five haloacetic acids (HAA5), established in 1998, was based on the need for residual disinfectant levels in water served to customers and the cost of treatment. This limit does not fully protect against the risk of cancer and harm to the developing fetus due to exposure to haloacetic acids.

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-12353738990010.900 ppb
2018-02-12353738990020.900 ppb
2018-02-1235373899003ND
2018-02-12353738990040.930 ppb
2018-02-12353738990010.900 ppb
2018-02-12353738990020.900 ppb
2018-02-1235373899003ND
2018-02-12353738990040.930 ppb
2018-05-10353920130012.50 ppb
2018-05-10353920130024.30 ppb
2018-05-10353920130033.40 ppb
2018-05-10353920130042.30 ppb
2018-05-10353920130012.50 ppb
2018-05-10353920130024.30 ppb
2018-05-10353920130033.40 ppb
2018-05-10353920130042.30 ppb
2018-08-15354115920010.580 ppb
2018-08-15354115920021.30 ppb
2018-08-15354115920032.40 ppb
2018-08-15354115920041.50 ppb
2018-08-15354115920010.580 ppb
2018-08-15354115920021.30 ppb
2018-08-15354115920032.40 ppb
2018-08-15354115920041.50 ppb
2018-11-16354321970010.970 ppb
2018-11-16354321970020.950 ppb
2018-11-16354321970032.70 ppb
2018-11-16354321970041.20 ppb
2018-11-16354321970010.970 ppb
2018-11-16354321970020.950 ppb
2018-11-16354321970032.70 ppb
2018-11-16354321970041.20 ppb
2019-02-21354502360014.80 ppb
2019-02-21354502360021.90 ppb
2019-02-21354502360032.70 ppb
2019-02-21354502360041.80 ppb
2019-02-21354502360014.80 ppb
2019-02-21354502360021.90 ppb
2019-02-21354502360032.70 ppb
2019-02-21354502360041.80 ppb
2019-05-17354695070023.20 ppb
2019-05-17354695070033.20 ppb
2019-05-17354695070043.00 ppb
2019-05-17354695070023.20 ppb
2019-05-17354695070033.20 ppb
2019-05-17354695070043.00 ppb
2019-05-23354708410011.10 ppb
2019-05-23354708410011.10 ppb
2019-08-2335492999001ND
2019-08-23354929990026.10 ppb
2019-08-2335492999003ND
2019-08-2335492999004ND
2019-08-2335492999001ND
2019-08-23354929990026.10 ppb
2019-08-2335492999003ND
2019-08-2335492999004ND
2019-11-14355128070012.60 ppb
2019-11-14355128070022.30 ppb
2019-11-14355128070032.50 ppb
2019-11-14355128070041.90 ppb
2019-11-14355128070012.60 ppb
2019-11-14355128070022.30 ppb
2019-11-14355128070032.50 ppb
2019-11-14355128070041.90 ppb
2020-02-24355330150014.70 ppb
2020-02-24355330150026.20 ppb
2020-02-24355330150033.30 ppb
2020-02-24355330150047.60 ppb
2020-05-28355532510010.550 ppb
2020-05-28355532510020.630 ppb
2020-05-28355532510030.890 ppb
2020-05-28355532510040.780 ppb
2020-08-11355704040011.50 ppb
2020-08-11355704040022.20 ppb
2020-08-11355704040031.40 ppb
2020-08-11355704040041.42 ppb
2020-11-05355904570011.76 ppb
2020-11-05355904570023.50 ppb
2020-11-05355904570033.50 ppb
2020-11-05355904570042.70 ppb
2021-02-2635615306001ND
2021-02-26356153060020.980 ppb
2021-02-2635615306003ND
2021-02-26356153060040.830 ppb
2021-05-14356338350012.20 ppb
2021-05-14356338350031.20 ppb
2021-05-14356338350041.60 ppb
2021-06-10356401170011.67 ppb
2021-08-19356578820011.20 ppb
2021-08-1935657882002ND
2021-08-1935657882003ND
2021-08-19356578820041.000 ppb
2021-11-19356799640011.50 ppb
2021-11-19356799640021.40 ppb
2021-11-19356799640031.000 ppb
2021-11-19356799640041.10 ppb
2022-02-10356966590012.90 ppb
2022-02-10356966590022.40 ppb
2022-02-10356966590032.00 ppb
2022-02-10356966590042.30 ppb
2022-05-19357202520011.10 ppb
2022-05-19357202520020.870 ppb
2022-05-19357202520030.540 ppb
2022-05-19357202520040.760 ppb
2022-08-18357414940011.50 ppb
2022-08-18357414940021.20 ppb
2022-08-18357414940031.40 ppb
2022-08-18357414940041.10 ppb
2022-11-16357613480011.29 ppb
2022-11-1635761348002ND
2022-11-1635761348003ND
2022-11-1635761348004ND
2023-02-17357806890010.850 ppb
2023-02-17357806890020.990 ppb
2023-02-17357806890031.20 ppb
2023-02-17357806890040.820 ppb
2023-05-19358018010011.50 ppb
2023-05-19358018010021.70 ppb
2023-05-19358018010033.10 ppb
2023-05-19358018010041.80 ppb
2023-08-11358202780012.00 ppb
2023-08-11358202780022.20 ppb
2023-08-11358202780031.90 ppb
2023-08-11358202780044.40 ppb
2023-11-08358408100010.860 ppb
2023-11-08358408100020.780 ppb
2023-11-08358408100030.520 ppb
2023-11-08358408100041.80 ppb