Know Your Environment. Protect Your Health.

Haloacetic acids (HAA5)

City of Bogalusa 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)

102

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.22 ppb3218ND - 2.61 ppb
20192.11 ppb32321.20 ppb - 3.20 ppb
20200.747 ppb1613ND - 1.66 ppb
20210.824 ppb1613ND - 2.00 ppb
20221.61 ppb1615ND - 2.80 ppb
20230.893 ppb1611ND - 3.10 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
2018-01-1235368407001ND
2018-01-1235368407002ND
2018-01-1235368407003ND
2018-01-1235368407004ND
2018-01-1235368407001ND
2018-01-1235368407002ND
2018-01-1235368407003ND
2018-01-1235368407004ND
2018-04-0535384630001ND
2018-04-0535384630002ND
2018-04-05353846300030.740 ppb
2018-04-0535384630004ND
2018-04-0535384630001ND
2018-04-0535384630002ND
2018-04-05353846300030.740 ppb
2018-04-0535384630004ND
2018-07-05354025390012.42 ppb
2018-07-05354025390022.30 ppb
2018-07-05354025390032.40 ppb
2018-07-05354025390042.61 ppb
2018-07-05354025390012.42 ppb
2018-07-05354025390022.30 ppb
2018-07-05354025390032.40 ppb
2018-07-05354025390042.61 ppb
2018-10-04354225490012.36 ppb
2018-10-04354225490021.92 ppb
2018-10-04354225490032.50 ppb
2018-10-04354225490042.33 ppb
2018-10-04354225490012.36 ppb
2018-10-04354225490021.92 ppb
2018-10-04354225490032.50 ppb
2018-10-04354225490042.33 ppb
2019-01-11354418650011.80 ppb
2019-01-11354418650021.40 ppb
2019-01-11354418650032.00 ppb
2019-01-11354418650041.70 ppb
2019-01-11354418650011.80 ppb
2019-01-11354418650021.40 ppb
2019-01-11354418650032.00 ppb
2019-01-11354418650041.70 ppb
2019-04-05354599590013.20 ppb
2019-04-05354599590022.20 ppb
2019-04-05354599590033.20 ppb
2019-04-05354599590043.00 ppb
2019-04-05354599590013.20 ppb
2019-04-05354599590022.20 ppb
2019-04-05354599590033.20 ppb
2019-04-05354599590043.00 ppb
2019-07-19354836710011.50 ppb
2019-07-19354836710021.20 ppb
2019-07-19354836710032.30 ppb
2019-07-19354836710041.70 ppb
2019-07-19354836710011.50 ppb
2019-07-19354836710021.20 ppb
2019-07-19354836710032.30 ppb
2019-07-19354836710041.70 ppb
2019-10-04355028580012.70 ppb
2019-10-04355028580021.49 ppb
2019-10-04355028580032.09 ppb
2019-10-04355028580042.30 ppb
2019-10-04355028580012.70 ppb
2019-10-04355028580021.49 ppb
2019-10-04355028580032.09 ppb
2019-10-04355028580042.30 ppb
2020-01-0935523412001ND
2020-01-0935523412002ND
2020-01-09355234120030.490 ppb
2020-01-09355234120040.370 ppb
2020-04-03355414630011.12 ppb
2020-04-03355414630020.820 ppb
2020-04-03355414630031.58 ppb
2020-04-03355414630041.57 ppb
2020-07-10355623780010.360 ppb
2020-07-10355623780020.280 ppb
2020-07-10355623780031.06 ppb
2020-07-10355623780040.890 ppb
2020-10-02355820990010.830 ppb
2020-10-0235582099002ND
2020-10-02355820990031.66 ppb
2020-10-02355820990040.920 ppb
2021-01-08356034830010.590 ppb
2021-01-08356034830020.570 ppb
2021-01-08356034830031.73 ppb
2021-01-08356034830042.00 ppb
2021-04-0935625080001ND
2021-04-0935625080002ND
2021-04-09356250800030.990 ppb
2021-04-09356250800040.570 ppb
2021-07-09356463690010.630 ppb
2021-07-09356463690020.450 ppb
2021-07-09356463690031.28 ppb
2021-07-09356463690041.02 ppb
2021-10-01356687370010.680 ppb
2021-10-01356687370021.60 ppb
2021-10-01356687370031.08 ppb
2021-10-0135668737004ND
2022-01-07356892150010.810 ppb
2022-01-07356892150020.740 ppb
2022-01-07356892150032.33 ppb
2022-01-07356892150042.05 ppb
2022-04-01357074970012.20 ppb
2022-04-01357074970021.05 ppb
2022-04-01357074970031.46 ppb
2022-04-01357074970041.42 ppb
2022-07-07357310640012.17 ppb
2022-07-07357310640022.03 ppb
2022-07-07357310640032.27 ppb
2022-07-07357310640042.80 ppb
2022-10-06357514580010.700 ppb
2022-10-0635751458002ND
2022-10-06357514580032.00 ppb
2022-10-06357514580041.70 ppb
2023-01-0635770968001ND
2023-01-0635770968002ND
2023-01-06357709680030.670 ppb
2023-01-0635770968004ND
2023-04-05357909120010.280 ppb
2023-04-0535790912002ND
2023-04-05357909120030.460 ppb
2023-04-0535790912004ND
2023-07-14358134410012.70 ppb
2023-07-14358134410021.26 ppb
2023-07-14358134410031.45 ppb
2023-07-14358134410041.34 ppb
2023-10-06358329610013.10 ppb
2023-10-06358329610021.72 ppb
2023-10-06358329610030.680 ppb
2023-10-06358329610040.630 ppb