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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

City of Manassas Park

Trichloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

 

68

Samples

0

Samples exceeding legal limit (MCL)

55

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20147.49 ppb1612ND - 34.0 ppb
20153.88 ppb87ND - 12.0 ppb
20164.75 ppb129ND - 10.00 ppb
201711.1 ppb1615ND - 25.0 ppb
2018N/A00N/A
20198.00 ppb1612ND - 28.0 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 trichloroacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-2414-02915HAA5.90 ppb
2014-02-2414-029145.90 ppb
2014-02-2414-02917 HAAND
2014-02-2414-02916 HAAND
2014-05-2914-08052HAA31.0 ppb
2014-05-2914-08054HAA11.0 ppb
2014-05-2914-08053HAA34.0 ppb
2014-05-2914-08055HAA7.00 ppb
2014-08-2714-13034HAA10.00 ppb
2014-08-2714-13035HAA4.00 ppb
2014-08-2714-13036HAAND
2014-08-2714-13037HAAND
2014-11-2414-18198HAA1.000 ppb
2014-11-2414-18199HAA1.000 ppb
2014-11-2414-18197HAA2.00 ppb
2014-11-2414-18196HAA7.00 ppb
2015-09-17460013-JAMES R.12.0 ppb
2015-09-17460013-JAMES R.ND
2015-09-17460013-JAMES R.2.00 ppb
2015-09-17460013-JAMES R.2.00 ppb
2015-11-23460013-JAMES R.3.00 ppb
2015-11-23460013-JAMES R.1.000 ppb
2015-11-23460013-JAMES R.1.000 ppb
2015-11-23460013-JAMES R.10.00 ppb
2016-02-2616-03237HAAND
2016-02-2616-03236HAAND
2016-02-2616-03235HAA4.00 ppb
2016-02-2616-03234HAA6.00 ppb
2016-05-2616-09506HAA6.00 ppb
2016-05-2616-09503HAA10.00 ppb
2016-05-2616-09504HAA8.00 ppb
2016-05-2616-09505HAA7.00 ppb
2016-08-2416-15300HAA8.00 ppb
2016-08-2416-15301HAAND
2016-08-2416-15303HAA4.00 ppb
2016-08-2416-15302HAA4.00 ppb
2017-02-2417-03555 HAAND
2017-02-2417-03553 HAA2.00 ppb
2017-03-0617-03901 HAA5.00 ppb
2017-03-0617-03902 HAA1.000 ppb
2017-05-2217-08929 - HAA16.0 ppb
2017-05-2217-08926 - HAA21.0 ppb
2017-05-2217-08928 - HAA23.0 ppb
2017-05-2217-08927 - HAA24.0 ppb
2017-08-0217-15154 - HAA17.0 ppb
2017-08-0217-15155 - HAA4.00 ppb
2017-08-0217-15156 - HAA4.00 ppb
2017-08-0217-15153 - HAA25.0 ppb
2017-11-2117-22087-HAA2.00 ppb
2017-11-2117-22085-HAA13.0 ppb
2017-11-2117-22086-HAA4.00 ppb
2017-11-2117-22084-HAA17.0 ppb
2019-02-2219-03552-HAAND
2019-02-2219-03551-HAAND
2019-02-2219-03550-HAA2.00 ppb
2019-02-2219-03549-HAA5.00 ppb
2019-05-3119-09726-HAA28.0 ppb
2019-05-3119-09727-HAA20.0 ppb
2019-05-3119-09728-HAA21.0 ppb
2019-05-3119-09729-HAA16.0 ppb
2019-08-3019-15983-HAA10.00 ppb
2019-08-3019-15984-HAA1.000 ppb
2019-08-3019-15985-HAA14.0 ppb
2019-08-3019-15986-HAA1.000 ppb
2019-12-1119-22540ND
2019-12-1119-22539ND
2019-12-1119-225383.00 ppb
2019-12-1119-225377.00 ppb