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EWG's Tap Water Database — 2021 UPDATE

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Haloacetic acids (HAA5)

Wilkinsburg-penn Joint Water Authority

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)

173

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201413.9 ppb3223ND - 36.7 ppb
201519.8 ppb32328.00 ppb - 41.0 ppb
201619.9 ppb32326.00 ppb - 59.0 ppb
201719.6 ppb3224ND - 48.0 ppb
201817.8 ppb32321.90 ppb - 33.0 ppb
201916.7 ppb3230ND - 34.0 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
2014-02-11N BRADDOCK B8.88 ppb
2014-02-11LOUGEAY RD T26.7 ppb
2014-02-11WILMERDING B10.2 ppb
2014-02-11TRAFFORD BOR7.87 ppb
2014-02-11PITCAIRN TAN12.3 ppb
2014-02-11FALL HOLLOW10.2 ppb
2014-02-11SHOP & SAVE8.97 ppb
2014-02-11MISSION CRES11.2 ppb
2014-04-15BRADDOCK BOR34.9 ppb
2014-04-15LOUGEAY RD T30.9 ppb
2014-04-15WILMERDING B30.6 ppb
2014-04-15TRAFFORD BOR34.5 ppb
2014-04-15PITCAIRN TANND
2014-04-15FALL HOLLOW36.7 ppb
2014-04-15SHOP & SAVE30.8 ppb
2014-04-15MISSION CRES31.3 ppb
2014-07-1514072498-00120.1 ppb
2014-07-1514072498-00316.1 ppb
2014-07-1514072498-00411.8 ppb
2014-07-1514072498-00510.1 ppb
2014-07-1514072498-0077.80 ppb
2014-07-1514072498-00822.9 ppb
2014-07-1514072498-01012.4 ppb
2014-07-1514072498-01217.6 ppb
2014-10-15NORTH BRADDOND
2014-10-15LONGEAY TANKND
2014-10-15WILMERDING BND
2014-10-15TRAFFORD BORND
2014-10-15PITCAIRN TANND
2014-10-15FULL HOLLOWND
2014-10-15SHOP N SAVEND
2014-10-15MISSIONCRESTND
2015-01-191234516117.0 ppb
2015-01-191234516239.0 ppb
2015-01-191234511717.0 ppb
2015-01-191234511528.0 ppb
2015-01-191234511621.0 ppb
2015-01-191234516323.0 ppb
2015-01-191234516411.0 ppb
2015-01-191234516517.0 ppb
2015-04-161269244420.0 ppb
2015-04-161269244721.0 ppb
2015-04-161269244516.0 ppb
2015-04-161269244623.0 ppb
2015-04-161269244219.0 ppb
2015-04-161269244335.0 ppb
2015-04-161269244819.0 ppb
2015-04-161269244925.0 ppb
2015-07-161307588020.0 ppb
2015-07-161307587641.0 ppb
2015-07-161307587817.0 ppb
2015-07-161307588119.0 ppb
2015-07-161307588213.0 ppb
2015-07-161307588337.0 ppb
2015-07-161307587921.0 ppb
2015-07-161307587734.0 ppb
2015-10-15134516829.00 ppb
2015-10-151345168713.0 ppb
2015-10-151345168010.00 ppb
2015-10-15134516848.00 ppb
2015-10-15134516858.00 ppb
2015-10-151345168110.00 ppb
2015-10-151345168310.00 ppb
2015-10-151345168611.0 ppb
2016-01-191381323423.0 ppb
2016-01-191381323125.0 ppb
2016-01-191381323824.0 ppb
2016-01-191381323621.0 ppb
2016-01-191381323725.0 ppb
2016-01-191381323330.0 ppb
2016-01-191381323521.0 ppb
2016-01-191381323221.0 ppb
2016-04-191417960019.0 ppb
2016-04-191417960137.0 ppb
2016-04-191417960223.0 ppb
2016-04-191417960359.0 ppb
2016-04-191417960449.0 ppb
2016-04-191417960528.0 ppb
2016-04-191417960627.0 ppb
2016-04-191417960733.0 ppb
2016-07-20146549908.00 ppb
2016-07-20146549869.00 ppb
2016-07-201465498810.00 ppb
2016-07-201465498420.0 ppb
2016-07-201465498318.0 ppb
2016-07-201465498913.0 ppb
2016-07-20146549856.00 ppb
2016-07-20146549877.00 ppb
2016-10-181515479910.00 ppb
2016-10-181515480212.0 ppb
2016-10-181515480612.0 ppb
2016-10-181515480411.0 ppb
2016-10-18151548058.00 ppb
2016-10-181515480111.0 ppb
2016-10-18151548008.00 ppb
2016-10-19151548039.00 ppb
2017-01-181558937242.0 ppb
2017-01-181558936536.0 ppb
2017-01-181558936945.0 ppb
2017-01-181558937048.0 ppb
2017-01-181558937140.0 ppb
2017-01-181558936646.0 ppb
2017-01-181558936727.0 ppb
2017-01-181558936842.0 ppb
2017-04-181601769222.0 ppb
2017-04-181601769334.0 ppb
2017-04-181601769421.0 ppb
2017-04-181601768934.0 ppb
2017-04-181601769023.0 ppb
2017-04-181601769143.0 ppb
2017-04-181601769528.0 ppb
2017-04-181601769635.0 ppb
2017-07-18164905748.00 ppb
2017-07-18164905808.00 ppb
2017-07-18164905867.00 ppb
2017-07-181649059211.0 ppb
2017-07-1816490598ND
2017-07-18164906049.00 ppb
2017-07-18164906106.00 ppb
2017-07-18164906167.00 ppb
2017-10-17169543896.00 ppb
2017-10-1716954400ND
2017-10-1716954406ND
2017-10-1716954412ND
2017-10-1716954418ND
2017-10-1716954424ND
2017-10-1716954430ND
2017-10-1716954436ND
2018-01-170118242031.0 ppb
2018-01-170118242131.0 ppb
2018-01-170118242231.0 ppb
2018-01-170118242332.0 ppb
2018-01-170118242427.0 ppb
2018-01-170118242532.0 ppb
2018-01-170118242623.0 ppb
2018-01-170118242733.0 ppb
2018-04-173915360123.1 ppb
2018-04-173915340127.0 ppb
2018-04-173915400114.9 ppb
2018-04-173915390127.6 ppb
2018-04-173915370118.4 ppb
2018-04-173915320130.0 ppb
2018-04-173915380127.4 ppb
2018-04-243961920130.1 ppb
2018-07-194038510115.9 ppb
2018-07-194038490110.9 ppb
2018-07-19403855017.30 ppb
2018-07-19403854018.90 ppb
2018-07-194038520112.7 ppb
2018-07-194038470112.5 ppb
2018-07-19403853012.00 ppb
2018-07-194038500110.6 ppb
2018-10-17414477018.20 ppb
2018-10-17414475017.90 ppb
2018-10-17414481016.50 ppb
2018-10-17414480015.40 ppb
2018-10-17414478011.90 ppb
2018-10-17414473018.70 ppb
2018-10-17414479013.40 ppb
2018-10-17414476017.60 ppb
2019-01-164245860126.0 ppb
2019-01-164245840126.4 ppb
2019-01-164245900120.9 ppb
2019-01-164245890127.3 ppb
2019-01-164245870120.3 ppb
2019-01-164245820125.6 ppb
2019-01-164245880117.5 ppb
2019-01-164245850123.6 ppb
2019-04-1619D0035-0120.8 ppb
2019-04-1619D0035-0229.3 ppb
2019-04-1619D0035-0326.1 ppb
2019-04-1619D0035-0431.0 ppb
2019-04-1619D0035-0516.1 ppb
2019-04-1619D0035-0631.2 ppb
2019-04-1619D0035-0717.4 ppb
2019-04-1619D0035-0834.0 ppb
2019-07-1619G0648-0111.5 ppb
2019-07-1619G0648-0212.0 ppb
2019-07-1619G0648-0314.4 ppb
2019-07-1619G0648-0416.5 ppb
2019-07-1619G0648-057.01 ppb
2019-07-1619G0648-0611.9 ppb
2019-07-1619G0648-077.99 ppb
2019-07-1619G0648-0810.7 ppb
2019-10-1619J0355-01ND
2019-10-1619J0355-027.23 ppb
2019-10-1619J0355-038.15 ppb
2019-10-1619J0355-049.18 ppb
2019-10-1619J0355-057.71 ppb
2019-10-1619J0355-068.26 ppb
2019-10-1619J0355-07ND
2019-10-1619J0355-086.84 ppb