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EWG's Tap Water Database — 2021 UPDATE

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Haloacetic acids (HAA5)

Fayetteville Public Works Commission

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

 

200

Samples

3

Samples exceeding legal limit (MCL)

200

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
201429.3 ppb323213.0 ppb - 51.0 ppb
201526.6 ppb323218.0 ppb - 35.0 ppb
201629.8 ppb323220.0 ppb - 42.0 ppb
201723.0 ppb323213.0 ppb - 34.0 ppb
201835.0 ppb404012.0 ppb - 68.0 ppb
201925.8 ppb323212.0 ppb - 50.0 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
2014-02-0337729_14-0334113.0 ppb
2014-02-0337729_14-0334213.0 ppb
2014-02-0337729_14-0334321.0 ppb
2014-02-0337729_14-0334419.0 ppb
2014-02-0337729_14-0334520.0 ppb
2014-02-0337729_14-0334623.0 ppb
2014-02-0337729_14-0334718.0 ppb
2014-02-0337729_14-0334820.0 ppb
2014-05-0537729_14-1259630.0 ppb
2014-05-0537729_14-1259730.0 ppb
2014-05-0537729_14-1259831.0 ppb
2014-05-0537729_14-1259930.0 ppb
2014-05-0537729_14-1260030.0 ppb
2014-05-0537729_14-1260133.0 ppb
2014-05-0537729_14-1260239.0 ppb
2014-05-0537729_14-1260336.0 ppb
2014-08-0437729_14-2308237.0 ppb
2014-08-0437729_14-2308337.0 ppb
2014-08-0437729_14-2308451.0 ppb
2014-08-0437729_14-2308541.0 ppb
2014-08-0437729_14-2308639.0 ppb
2014-08-0437729_14-2308746.0 ppb
2014-08-0437729_14-2308840.0 ppb
2014-08-0437729_14-2308938.0 ppb
2014-11-0337729_14-3335825.0 ppb
2014-11-0337729_14-3335925.0 ppb
2014-11-0337729_14-3336026.0 ppb
2014-11-0337729_14-3336126.0 ppb
2014-11-0337729_14-3336224.0 ppb
2014-11-0337729_14-3336327.0 ppb
2014-11-0337729_14-3337425.0 ppb
2014-11-0337729_14-3337623.0 ppb
2015-02-0219.0 ppb
2015-02-0218.0 ppb
2015-02-0218.0 ppb
2015-02-0219.0 ppb
2015-02-0219.0 ppb
2015-02-0218.0 ppb
2015-02-0218.0 ppb
2015-02-0220.0 ppb
2015-05-0429.0 ppb
2015-05-0430.0 ppb
2015-05-0426.0 ppb
2015-05-0428.0 ppb
2015-05-0427.0 ppb
2015-05-0429.0 ppb
2015-05-0428.0 ppb
2015-05-0432.0 ppb
2015-08-0331.0 ppb
2015-08-0329.0 ppb
2015-08-0331.0 ppb
2015-08-0331.0 ppb
2015-08-0327.0 ppb
2015-08-0328.0 ppb
2015-08-0328.0 ppb
2015-08-0327.0 ppb
2015-11-0233.0 ppb
2015-11-0233.0 ppb
2015-11-0230.0 ppb
2015-11-0230.0 ppb
2015-11-0235.0 ppb
2015-11-0228.0 ppb
2015-11-0228.0 ppb
2015-11-0225.0 ppb
2016-02-0837729_16-0386630.0 ppb
2016-02-0837729_16-0386735.0 ppb
2016-02-0837729_16-0386826.0 ppb
2016-02-0837729_16-0386937.0 ppb
2016-02-0837729_16-0387024.0 ppb
2016-02-0837729_16-0387120.0 ppb
2016-02-0837729_16-0387228.0 ppb
2016-02-0837729_16-0387332.0 ppb
2016-05-0237729_16-1371329.0 ppb
2016-05-0237729_16-1371439.0 ppb
2016-05-0237729_16-1371529.0 ppb
2016-05-0237729_16-1371638.0 ppb
2016-05-0237729_16-1371725.0 ppb
2016-05-0237729_16-1371829.0 ppb
2016-05-0237729_16-1371930.0 ppb
2016-05-0237729_16-1372033.0 ppb
2016-08-0137729_16-2582128.0 ppb
2016-08-0137729_16-2582427.0 ppb
2016-08-0137729_16-2582526.0 ppb
2016-08-0137729_16-2582629.0 ppb
2016-08-0137729_16-2582742.0 ppb
2016-08-0137729_16-2582842.0 ppb
2016-08-0137729_16-2582930.0 ppb
2016-08-0137729_16-2583032.0 ppb
2016-11-0737729_16-3881731.0 ppb
2016-11-0737729_16-3881825.0 ppb
2016-11-0737729_16-3881928.0 ppb
2016-11-0737729_16-3881225.0 ppb
2016-11-0737729_16-3881325.0 ppb
2016-11-0737729_16-3881424.0 ppb
2016-11-0737729_16-3881523.0 ppb
2016-11-0737729_16-3881634.0 ppb
2017-02-0637729_17-0424314.0 ppb
2017-02-0637729_17-0424413.0 ppb
2017-02-0637729_17-0424515.0 ppb
2017-02-0637729_17-0424615.0 ppb
2017-02-0637729_17-0424713.0 ppb
2017-02-0637729_17-0424813.0 ppb
2017-02-0637729_17-0424915.0 ppb
2017-02-0637729_17-0425015.0 ppb
2017-05-0137729_17-1442726.0 ppb
2017-05-0137729_17-1443028.0 ppb
2017-05-0137729_17-1443131.0 ppb
2017-05-0137729_17-1443331.0 ppb
2017-05-0137729_17-1443429.0 ppb
2017-05-0137729_17-1444228.0 ppb
2017-05-0137729_17-1444332.0 ppb
2017-05-0137729_17-1444734.0 ppb
2017-08-0737729_17-2792325.0 ppb
2017-08-0737729_17-2792530.0 ppb
2017-08-0737729_17-2792627.0 ppb
2017-08-0737729_17-2793230.0 ppb
2017-08-0737729_17-2793330.0 ppb
2017-08-0737729_17-2793425.0 ppb
2017-08-0737729_17-2793626.0 ppb
2017-08-0737729_17-2792427.0 ppb
2017-11-0637729_17-4178119.0 ppb
2017-11-0637729_17-4178221.0 ppb
2017-11-0637729_17-4178319.0 ppb
2017-11-0637729_17-4178422.0 ppb
2017-11-0637729_17-4178517.0 ppb
2017-11-0637729_17-4178618.0 ppb
2017-11-0637729_17-4178723.0 ppb
2017-11-0637729_17-4178824.0 ppb
2018-02-0537729_18-04555 12.0 ppb
2018-02-0537729_18-04556 24.0 ppb
2018-02-0537729_18-04557 33.0 ppb
2018-02-0537729_18-04558 37.0 ppb
2018-02-0537729_18-04559 34.0 ppb
2018-02-0537729_18-04560 48.0 ppb
2018-02-0537729_18-04561 30.0 ppb
2018-02-0537729_18-04562 37.0 ppb
2018-05-0737729_18-18101 26.0 ppb
2018-05-0737729_18-18102 28.0 ppb
2018-05-0737729_18-18103 28.0 ppb
2018-05-0737729_18-18104 25.0 ppb
2018-05-0737729_18-18105 24.0 ppb
2018-05-0737729_18-18106 29.0 ppb
2018-05-0737729_18-18107 24.0 ppb
2018-05-0737729_18-18108 22.0 ppb
2018-08-0637729_18-32348 65.0 ppb
2018-08-0637729_18-32349 55.0 ppb
2018-08-0637729_18-32350 58.0 ppb
2018-08-0637729_18-32351 55.0 ppb
2018-08-0637729_18-32352 54.0 ppb
2018-08-0637729_18-32353 54.0 ppb
2018-08-0637729_18-32354 68.0 ppb
2018-08-0637729_18-32355 46.0 ppb
2018-08-2737729_18-35908 27.0 ppb
2018-08-2737729_18-35909 29.0 ppb
2018-08-2737729_18-35910 37.0 ppb
2018-08-2737729_18-35911 26.0 ppb
2018-08-2737729_18-35912 47.0 ppb
2018-08-2737729_18-35913 63.0 ppb
2018-08-2737729_18-35914 30.0 ppb
2018-08-2737729_18-35915 27.0 ppb
2018-11-0537729_18-46146 22.0 ppb
2018-11-0537729_18-46184 22.0 ppb
2018-11-0537729_18-46185 29.0 ppb
2018-11-0537729_18-46186 27.0 ppb
2018-11-0537729_18-46187 28.0 ppb
2018-11-0537729_18-46188 27.0 ppb
2018-11-0537729_18-46189 21.0 ppb
2018-11-0537729_18-46190 22.0 ppb
2019-02-0437729_19-05011 12.0 ppb
2019-02-0437729_19-05012 12.0 ppb
2019-02-0437729_19-05013 20.0 ppb
2019-02-0437729_19-05014 14.0 ppb
2019-02-0437729_19-05015 13.0 ppb
2019-02-0437729_19-05016 20.0 ppb
2019-02-0437729_19-05017 12.0 ppb
2019-02-0437729_19-05018 13.0 ppb
2019-05-0637729_19-18340 40.0 ppb
2019-05-0637729_19-18341 36.0 ppb
2019-05-0637729_19-18342 24.0 ppb
2019-05-0637729_19-18343 23.0 ppb
2019-05-0637729_19-18344 50.0 ppb
2019-05-0637729_19-18345 24.0 ppb
2019-05-0637729_19-18346 40.0 ppb
2019-05-0637729_19-18347 24.0 ppb
2019-08-0537729_19-33332 36.0 ppb
2019-08-0537729_19-33333 29.0 ppb
2019-08-0537729_19-33334 30.0 ppb
2019-08-0537729_19-33335 29.0 ppb
2019-08-0537729_19-33336 42.0 ppb
2019-08-0537729_19-33337 40.0 ppb
2019-08-0537729_19-33338 38.0 ppb
2019-08-0537729_19-33339 34.0 ppb
2019-11-0437729_19-47378 20.0 ppb
2019-11-0437729_19-47381 20.0 ppb
2019-11-0437729_19-47382 23.0 ppb
2019-11-0437729_19-47383 20.0 ppb
2019-11-0437729_19-47384 24.0 ppb
2019-11-0437729_19-47385 25.0 ppb
2019-11-0437729_19-47386 20.0 ppb
2019-11-0437729_19-47387 20.0 ppb