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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

City of Ceres

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

 

94

Samples

0

Samples exceeding legal limit (MCL)

35

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND120ND
2015ND120ND
201615.5 ppb168ND - 64.0 ppb
201712.7 ppb3125ND - 68.0 ppb
2018ND80ND
20190.140 ppb152ND - 1.10 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
2014-01-075806-903-1340ND
2014-01-075806-902-1305ND
2014-01-075806-901-1325ND
2014-01-075806-900-1315ND
2014-04-075806-903-1520ND
2014-04-075806-902-1505ND
2014-04-075806-901-1435ND
2014-04-075806-900-1425ND
2014-07-095806-903-1330ND
2014-07-095806-902-1315ND
2014-07-095806-901-1350ND
2014-07-095806-900-1400ND
2015-01-075806-902-1155ND
2015-01-075806-901-1130ND
2015-01-075806-903-1205ND
2015-01-075806-900-1140ND
2015-07-095806-900-1226ND
2015-07-095806-901-1235ND
2015-07-095806-903-1245ND
2015-07-095806-902-1216ND
2015-10-065806-903-1200ND
2015-10-065806-901-1100ND
2015-10-065806-902-1150ND
2015-10-065806-900-1140ND
2016-01-085806-903-1040ND
2016-01-085806-902-1015ND
2016-01-085806-900-1010ND
2016-01-085806-901-1000ND
2016-04-055806-903-1055ND
2016-04-055806-902-1010ND
2016-04-055806-900-1030ND
2016-04-055806-901-1040ND
2016-07-075806-903-08455.60 ppb
2016-07-075806-900-080023.0 ppb
2016-07-075806-902-073018.0 ppb
2016-07-075806-901-081025.0 ppb
2016-10-055806-902-102018.0 ppb
2016-10-055806-901-104064.0 ppb
2016-10-055806-903-100533.0 ppb
2016-10-055806-900-103061.0 ppb
2017-01-175806-901-074858.0 ppb
2017-01-175806-903-080512.0 ppb
2017-01-175806-902-074568.0 ppb
2017-01-175806-900-080025.0 ppb
2017-04-275806-016-12354.80 ppb
2017-04-275806-014-09203.70 ppb
2017-04-275806-040-10109.00 ppb
2017-04-275806-039-101012.0 ppb
2017-04-275806-038-10356.10 ppb
2017-04-275806-035-084012.0 ppb
2017-04-275806-034-120515.0 ppb
2017-04-275806-033-073812.0 ppb
2017-04-275806-032-07389.70 ppb
2017-04-275806-030-09053.40 ppb
2017-04-275806-028-10507.80 ppb
2017-04-275806-027-093539.0 ppb
2017-04-275806-023-11409.80 ppb
2017-04-275806-022-09054.10 ppb
2017-05-225806-027-0835ND
2017-05-255806-901-09454.20 ppb
2017-05-255806-902-084512.0 ppb
2017-05-255806-903-0910ND
2017-05-255806-900-093518.0 ppb
2017-07-195806-903-14258.90 ppb
2017-07-195806-900-135515.0 ppb
2017-07-195806-902-134012.0 ppb
2017-07-195806-901-140511.0 ppb
2017-10-105806-903-1210ND
2017-10-105806-902-1200ND
2017-10-105806-901-1122ND
2017-10-105806-900-1130ND
2018-07-095806-901-1150ND
2018-07-095806-903-1105ND
2018-07-095806-902-1120ND
2018-07-095806-900-1130ND
2018-10-015806-901-1030ND
2018-10-015806-902-0810ND
2018-10-015806-903-1040ND
2018-10-015806-900-0900ND
2019-01-075806-901-11101.10 ppb
2019-01-075806-902-0815ND
2019-01-075806-903-1100ND
2019-01-075806-900-09251.000 ppb
2019-04-095806-903-1415ND
2019-04-095806-900-1105ND
2019-04-095806-902-1330ND
2019-04-095806-901-1120ND
2019-07-085806-903-1055ND
2019-07-085806-902-0755ND
2019-07-085806-901-0900ND
2019-10-075806-903-1110ND
2019-10-075806-900-0805ND
2019-10-075806-902-0745ND
2019-10-075806-901-0815ND