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EWG's Tap Water Database — 2021 UPDATE

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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.

MORE ABOUT THIS CONTAMINANT

 

192

Samples

0

Samples exceeding legal limit (MCL)

82

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND320ND
20150.311 ppb328ND - 1.80 ppb
20160.0956 ppb324ND - 0.830 ppb
20172.43 ppb3220ND - 26.2 ppb
20181.22 ppb3218ND - 2.61 ppb
20192.11 ppb32321.20 ppb - 3.20 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2014-01-06201155738ND
2014-01-06201155739ND
2014-01-06201155740ND
2014-01-06201155741ND
2014-01-06201155738ND
2014-01-06201155739ND
2014-01-06201155740ND
2014-01-06201155741ND
2014-04-10202552001ND
2014-04-10202552002ND
2014-04-10202552003ND
2014-04-10202552004ND
2014-04-10202552001ND
2014-04-10202552002ND
2014-04-10202552003ND
2014-04-10202552004ND
2014-07-10206591001ND
2014-07-10206591002ND
2014-07-10206591003ND
2014-07-10206591004ND
2014-07-10206591001ND
2014-07-10206591002ND
2014-07-10206591003ND
2014-07-10206591004ND
2014-10-062010541001ND
2014-10-062010541002ND
2014-10-062010541003ND
2014-10-062010541004ND
2014-10-062010541001ND
2014-10-062010541002ND
2014-10-062010541003ND
2014-10-062010541004ND
2015-01-0920145120011.60 ppb
2015-01-092014512002ND
2015-01-092014612003ND
2015-01-092014612004ND
2015-01-0920145120011.60 ppb
2015-01-092014512002ND
2015-01-092014612003ND
2015-01-092014612004ND
2015-04-092018372001ND
2015-04-092018372002ND
2015-04-0920183720030.730 ppb
2015-04-0920183720040.840 ppb
2015-04-092018372001ND
2015-04-092018372002ND
2015-04-0920183720030.730 ppb
2015-04-0920183720040.840 ppb
2015-07-072022376001ND
2015-07-072022376002ND
2015-07-072022376003ND
2015-07-0720223760041.80 ppb
2015-07-072022376001ND
2015-07-072022376002ND
2015-07-072022376003ND
2015-07-0720223760041.80 ppb
2015-10-062026788001ND
2015-10-062026788002ND
2015-10-062026788003ND
2015-10-062026788004ND
2015-10-062026788001ND
2015-10-062026788002ND
2015-10-062026788003ND
2015-10-062026788004ND
2016-01-042030720001ND
2016-01-042030720002ND
2016-01-042030720003ND
2016-01-042030720004ND
2016-01-042030720001ND
2016-01-042030720002ND
2016-01-042030720003ND
2016-01-042030720004ND
2016-04-072034973001ND
2016-04-072034974001ND
2016-04-072034975001ND
2016-04-072034976001ND
2016-04-072034973001ND
2016-04-072034974001ND
2016-04-072034975001ND
2016-04-072034976001ND
2016-07-062039423001ND
2016-07-062039429001ND
2016-07-062039430001ND
2016-07-06203948001ND
2016-07-062039423001ND
2016-07-062039429001ND
2016-07-062039430001ND
2016-07-06203948001ND
2016-10-102043952001ND
2016-10-102043953001ND
2016-10-1020439550010.700 ppb
2016-10-1020439560010.830 ppb
2016-10-102043952001ND
2016-10-102043953001ND
2016-10-1020439550010.700 ppb
2016-10-1020439560010.830 ppb
2017-01-1335288872001ND
2017-01-1335288872002ND
2017-01-1335288872003ND
2017-01-1335288872004ND
2017-01-1335288872001ND
2017-01-1335288872002ND
2017-01-1335288872003ND
2017-01-1335288872004ND
2017-04-05353051640011.000 ppb
2017-04-0535305164002ND
2017-04-05353051640031.20 ppb
2017-04-05353051640011.000 ppb
2017-04-0535305164002ND
2017-04-05353051640031.20 ppb
2017-04-133530651400226.2 ppb
2017-04-133530651400226.2 ppb
2017-07-06353225150290.950 ppb
2017-07-06353225150305.40 ppb
2017-07-0635322515031ND
2017-07-06353225150320.530 ppb
2017-07-06353225150290.950 ppb
2017-07-06353225150305.40 ppb
2017-07-0635322515031ND
2017-07-06353225150320.530 ppb
2017-10-04353405060010.820 ppb
2017-10-04353405060020.840 ppb
2017-10-04353405060030.780 ppb
2017-10-04353405060041.10 ppb
2017-10-04353405060010.820 ppb
2017-10-04353405060020.840 ppb
2017-10-04353405060030.780 ppb
2017-10-04353405060041.10 ppb
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