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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

California Water Service - Livermore

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

 

117

Samples

0

Samples exceeding legal limit (MCL)

94

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
20162.84 ppb2421ND - 5.90 ppb
20173.06 ppb3026ND - 6.60 ppb
20181.61 ppb3120ND - 3.70 ppb
20192.73 ppb3227ND - 6.90 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
2016-05-165810-801-11332.90 ppb
2016-05-165810-802-1059ND
2016-05-165810-803-13212.50 ppb
2016-05-165810-804-13111.50 ppb
2016-05-165810-805-13362.80 ppb
2016-05-165810-806-13592.90 ppb
2016-05-165810-807-14073.10 ppb
2016-05-165810-808-14223.00 ppb
2016-08-175810-801-10262.60 ppb
2016-08-175810-802-0928ND
2016-08-175810-803-11241.70 ppb
2016-08-175810-804-09081.60 ppb
2016-08-175810-805-09582.00 ppb
2016-08-175810-806-09442.60 ppb
2016-08-175810-807-11091.90 ppb
2016-08-175810-808-10491.90 ppb
2016-11-215810-801-09255.20 ppb
2016-11-215810-802-0845ND
2016-11-215810-803-10052.90 ppb
2016-11-215810-804-13035.80 ppb
2016-11-215810-805-09005.90 ppb
2016-11-215810-806-11405.80 ppb
2016-11-215810-807-11035.20 ppb
2016-11-215810-808-13354.40 ppb
2017-02-225810-801-10065.40 ppb
2017-02-225810-802-1244ND
2017-02-225810-803-10235.90 ppb
2017-02-225810-804-13506.30 ppb
2017-02-225810-805-13266.60 ppb
2017-02-225810-806-13055.90 ppb
2017-02-225810-807-10586.00 ppb
2017-02-225810-808-10316.20 ppb
2017-05-175810-801-13242.70 ppb
2017-05-175810-802-1117ND
2017-05-175810-803-12203.10 ppb
2017-05-175810-805-14222.70 ppb
2017-05-175810-806-14092.80 ppb
2017-05-175810-807-13563.60 ppb
2017-05-175810-808-13483.20 ppb
2017-05-185810-804-15304.40 ppb
2017-08-225810-801-13042.10 ppb
2017-08-225810-802-11401.60 ppb
2017-08-225810-803-10092.20 ppb
2017-08-225810-805-12462.10 ppb
2017-08-225810-806-14082.10 ppb
2017-08-225810-807-13342.20 ppb
2017-08-225810-808-13502.40 ppb
2017-11-205810-801-11452.90 ppb
2017-11-205810-802-1245ND
2017-11-205810-803-10061.70 ppb
2017-11-205810-805-14151.70 ppb
2017-11-205810-806-1423ND
2017-11-205810-807-14312.90 ppb
2017-11-205810-808-14493.00 ppb
2018-02-205810-801-13153.20 ppb
2018-02-205810-802-1136ND
2018-02-205810-803-10371.60 ppb
2018-02-205810-805-12473.10 ppb
2018-02-205810-806-1508ND
2018-02-205810-807-14253.10 ppb
2018-02-205810-808-14383.10 ppb
2018-05-235810-805-14023.30 ppb
2018-05-235810-806-10572.10 ppb
2018-05-235810-807-11123.60 ppb
2018-05-235810-808-14313.70 ppb
2018-05-255810-801-15443.50 ppb
2018-05-255810-802-1715ND
2018-05-255810-803-16112.10 ppb
2018-05-255810-804-16402.30 ppb
2018-08-225810-801-14022.30 ppb
2018-08-225810-802-16051.50 ppb
2018-08-225810-803-15341.70 ppb
2018-08-225810-804-15482.20 ppb
2018-08-225810-805-15102.20 ppb
2018-08-225810-806-1456ND
2018-08-225810-807-14412.00 ppb
2018-08-225810-808-14272.20 ppb
2018-11-205810-801-1300ND
2018-11-205810-802-1440ND
2018-11-205810-803-1504ND
2018-11-205810-804-1525ND
2018-11-205810-805-1556ND
2018-11-205810-806-1612ND
2018-11-205810-807-1629ND
2018-11-205810-808-16541.10 ppb
2019-02-205810-801-16233.20 ppb
2019-02-205810-802-1525ND
2019-02-205810-803-17423.50 ppb
2019-02-205810-805-17214.00 ppb
2019-02-205810-806-15433.90 ppb
2019-02-205810-807-16064.10 ppb
2019-02-205810-808-16443.30 ppb
2019-04-045810-013-1250ND
2019-05-215810-801-10126.50 ppb
2019-05-215810-802-11031.70 ppb
2019-05-215810-803-12464.60 ppb
2019-05-215810-804-13023.90 ppb
2019-05-215810-805-08594.30 ppb
2019-05-215810-806-09194.20 ppb
2019-05-215810-807-09335.70 ppb
2019-05-215810-808-09516.90 ppb
2019-08-205810-801-11252.00 ppb
2019-08-205810-802-12591.90 ppb
2019-08-205810-803-14122.30 ppb
2019-08-205810-804-14302.00 ppb
2019-08-205810-805-09492.00 ppb
2019-08-205810-806-09102.10 ppb
2019-08-205810-807-10032.20 ppb
2019-08-205810-808-10342.10 ppb
2019-11-195810-801-14171.80 ppb
2019-11-195810-802-1100ND
2019-11-195810-803-12352.20 ppb
2019-11-195810-804-12492.80 ppb
2019-11-195810-805-1342ND
2019-11-195810-806-1326ND
2019-11-195810-807-13582.30 ppb
2019-11-195810-808-14341.90 ppb