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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

Wilmington Water Department

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

 

189

Samples

0

Samples exceeding legal limit (MCL)

188

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20147.02 ppb10104.00 ppb - 11.4 ppb
201515.0 ppb3837ND - 32.8 ppb
201612.2 ppb27274.60 ppb - 24.4 ppb
201715.8 ppb39395.30 ppb - 29.7 ppb
201813.5 ppb35355.80 ppb - 21.8 ppb
201910.3 ppb40403.70 ppb - 15.9 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
2014-04-011079443001 HAA57.80 ppb
2014-04-011079443002 HAA511.4 ppb
2014-04-011079443003 HAA55.40 ppb
2014-04-011079443004 HAA54.00 ppb
2014-04-011079443006 HAA56.40 ppb
2014-04-011079443007 HAA57.90 ppb
2014-04-011079443008 HAA58.50 ppb
2014-04-011079443009 HAA57.10 ppb
2014-04-011079443010 HAA54.90 ppb
2014-04-011079443011 HAA56.80 ppb
2015-01-052047942001 HAA54.60 ppb
2015-01-052047942002 HAA512.3 ppb
2015-01-052047942003 HAA512.3 ppb
2015-01-052047942004 HAA510.00 ppb
2015-01-052047942005 HAA5ND
2015-01-052047942006 HAA59.60 ppb
2015-01-052047942007 HAA510.00 ppb
2015-01-052047942008 HAA511.9 ppb
2015-01-052047942009 HAA514.7 ppb
2015-04-142065266001 HAA55.10 ppb
2015-04-142065266002 HAA55.30 ppb
2015-04-142065266003 HAA511.9 ppb
2015-04-142065266004 HAA510.9 ppb
2015-04-142065266005 HAA510.4 ppb
2015-04-142065266006 HAA511.2 ppb
2015-04-142065266007 HAA514.3 ppb
2015-04-142065266008 HAA510.3 ppb
2015-04-142065266009 HAA512.3 ppb
2015-04-142065266010 HAA511.4 ppb
2015-07-082082331001 HAA516.6 ppb
2015-07-082082331002 HAA531.6 ppb
2015-07-082082331003 HAA532.8 ppb
2015-07-082082331004 HAA529.9 ppb
2015-07-082082331005 HAA527.4 ppb
2015-07-082082331006 HAA524.6 ppb
2015-07-082082331007 HAA519.0 ppb
2015-07-082082331008 HAA59.70 ppb
2015-07-082082331009 HAA532.1 ppb
2015-07-082082331010 HAA58.00 ppb
2015-10-072100950001 HAA513.7 ppb
2015-10-072100950003 HAA518.4 ppb
2015-10-072100950004 HAA519.0 ppb
2015-10-072100950005 HAA519.2 ppb
2015-10-072100950006 HAA519.8 ppb
2015-10-072100950007 HAA511.3 ppb
2015-10-072100950008 HAA519.0 ppb
2015-10-072100950009 HAA511.0 ppb
2015-10-072100950010 HAA519.8 ppb
2016-04-042134195001 HAA57.10 ppb
2016-04-042134195003 HAA58.20 ppb
2016-04-042134195004 HAA59.40 ppb
2016-04-042134195005 HAA57.50 ppb
2016-04-042134195006 HAA59.90 ppb
2016-04-042134195007 HAA57.80 ppb
2016-04-042134195008 HHA59.40 ppb
2016-04-042134195009 HAA58.20 ppb
2016-04-042134195010 HAA59.40 ppb
2016-07-0521566340018.90 ppb
2016-07-05215663400310.9 ppb
2016-07-05215663400413.8 ppb
2016-07-05215663400513.8 ppb
2016-07-05215663400618.0 ppb
2016-07-05215663400713.3 ppb
2016-07-05215663400813.7 ppb
2016-07-05215663400917.2 ppb
2016-07-05215663401017.0 ppb
2016-10-032179446001 HAA54.60 ppb
2016-10-032179446002 HAA56.50 ppb
2016-10-032179446003 HAA512.7 ppb
2016-10-032179446004 HAA512.2 ppb
2016-10-032179446005 HAA524.4 ppb
2016-10-032179446006 HAA522.0 ppb
2016-10-032179446007 HAA515.8 ppb
2016-10-032179446008 HAA510.6 ppb
2016-10-032179446009 HAA518.3 ppb
2017-01-042200080001 HAA56.60 ppb
2017-01-042200080002 HAA511.6 ppb
2017-01-042200080003 HAA511.8 ppb
2017-01-042200080004 HAA510.7 ppb
2017-01-042200080005 HAA510.9 ppb
2017-01-042200080006 HAA513.1 ppb
2017-01-042200080007 HAA510.5 ppb
2017-01-042200080008 HAA510.6 ppb
2017-01-042200080009 HAA511.2 ppb
2017-04-042220361001 HAA55.30 ppb
2017-04-042220361003 HAA516.3 ppb
2017-04-042220361004 HAA514.4 ppb
2017-04-042220361005 HAA511.4 ppb
2017-04-042220361006 HAA510.6 ppb
2017-04-042220361007 HAA518.3 ppb
2017-04-042220361008 HAA513.5 ppb
2017-04-042220361009 HAA515.2 ppb
2017-04-042220361010 HAA518.5 ppb
2017-04-052220361011 HAA513.2 ppb
2017-07-182247510001 HAA520.4 ppb
2017-07-182247510004 HAA57.30 ppb
2017-07-182247510006 HAA526.3 ppb
2017-07-182247510008 HAA529.7 ppb
2017-07-182247510010 HAA526.0 ppb
2017-07-182247510012 HAA519.1 ppb
2017-07-182247510014 HAA523.5 ppb
2017-07-182247510016 HAA524.6 ppb
2017-07-182247510018 HAA526.9 ppb
2017-07-182247510020 HAA515.6 ppb
2017-10-032267296001 HAA511.1 ppb
2017-10-032267296004 HAA59.10 ppb
2017-10-032267296006 HAA522.9 ppb
2017-10-032267296008 HAA520.9 ppb
2017-10-032267296010 HAA517.7 ppb
2017-10-032267296012 HAA519.4 ppb
2017-10-032267296014 HAA515.4 ppb
2017-10-032267296016 HAA414.8 ppb
2017-10-032267296018 HHA522.5 ppb
2017-10-032267296020 HAA59.10 ppb
2018-01-032287060001 HAA515.3 ppb
2018-01-032287060004 HAA520.8 ppb
2018-01-032287060006 HAA518.9 ppb
2018-01-032287060008 HAA518.6 ppb
2018-01-032287060010 HAA514.7 ppb
2018-01-032287060012 HAA511.3 ppb
2018-01-032287060014 HAA510.7 ppb
2018-01-032287060016 HAA521.0 ppb
2018-01-032287060018 HAA521.8 ppb
2018-04-032306959001 HAA511.5 ppb
2018-04-032306959005 HAA55.80 ppb
2018-04-032306959007 HAA512.8 ppb
2018-04-032306959009 HAA512.0 ppb
2018-04-032306959011 HAA511.1 ppb
2018-04-032306959013 HAA512.3 ppb
2018-04-032306959015 HAA57.60 ppb
2018-04-032306959017 HAA58.20 ppb
2018-07-022324450001 HAA510.3 ppb
2018-07-022324450003 HAA511.4 ppb
2018-07-022324450004 HAA515.1 ppb
2018-07-022324450005 HAA512.6 ppb
2018-07-022324450006 HAA511.2 ppb
2018-07-022324450007 HAA510.8 ppb
2018-07-022324450008 HAA511.4 ppb
2018-07-022324450009 HAA511.5 ppb
2018-07-022324450010 HAA513.8 ppb
2018-10-022342141001 HAA57.80 ppb
2018-10-022342141004 HAA515.5 ppb
2018-10-022342141006 HAA514.4 ppb
2018-10-022342141008 HAA514.5 ppb
2018-10-022342141010 HAA516.0 ppb
2018-10-022342141012 HAA518.5 ppb
2018-10-022342141014 HAA512.4 ppb
2018-10-022342141016 HAA512.8 ppb
2018-10-022342141018 HAA517.0 ppb
2019-01-033009447001 HAA54.30 ppb
2019-01-033009447004 HAA511.2 ppb
2019-01-033009447006 HAA57.70 ppb
2019-01-033009447008 HAA57.10 ppb
2019-01-033009447010 HAA57.60 ppb
2019-01-033009447012 HAA512.3 ppb
2019-01-033009447014 HAA58.20 ppb
2019-01-033009447016 HAA511.7 ppb
2019-01-033009447018 HAA510.5 ppb
2019-01-033009447020 HAA56.00 ppb
2019-04-023026194001 HAA54.30 ppb
2019-04-023026194003 HAA58.90 ppb
2019-04-023026194004 HAA57.50 ppb
2019-04-023026194005 HAA57.20 ppb
2019-04-023026194006 HAA56.50 ppb
2019-04-023026194007 HAA56.30 ppb
2019-04-023026194008 HAA57.10 ppb
2019-04-023026194009 HAA57.90 ppb
2019-04-023026194010 HAA58.90 ppb
2019-04-023026194011 HAA53.70 ppb
2019-07-013043203001 HAA511.5 ppb
2019-07-013043203004 HAA513.6 ppb
2019-07-013043203006 HAA515.9 ppb
2019-07-013043203008 HAA514.5 ppb
2019-07-013043203010 HAA415.6 ppb
2019-07-013043203012 HAA514.7 ppb
2019-07-013043203014 HAA513.5 ppb
2019-07-013043203016 HAA514.9 ppb
2019-07-013043203018 HAA515.6 ppb
2019-07-013043203020 HAA511.5 ppb
2019-10-023061934001 HAA58.40 ppb
2019-10-023061934004 HAA513.0 ppb
2019-10-023061934006 HAA512.7 ppb
2019-10-023061934008 HAA512.4 ppb
2019-10-023061934010 HAA512.3 ppb
2019-10-023061934012 HAA511.8 ppb
2019-10-023061934014 HAA510.6 ppb
2019-10-023061934016 HAA512.1 ppb
2019-10-023061934018 HAA514.4 ppb
2019-10-023061934020 HAA56.90 ppb