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EWG's Tap Water Database — 2019 UPDATE

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Trichloroacetic acid

Sun Valley Gid

NOTE: Sun Valley Gid purchases water from Truckee Meadows Water Authority which is required to test for trichloroacetic acid. Sample information shown below was taken by Truckee Meadows Water Authority.

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.

 

215

Samples

0

Samples exceeding legal limit (MCL)

209

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20129.29 ppb117ND - 25.0 ppb
201310.8 ppb16166.40 ppb - 15.0 ppb
201414.0 ppb16164.00 ppb - 29.0 ppb
201514.5 ppb16166.30 ppb - 25.0 ppb
201619.3 ppb161616.0 ppb - 25.0 ppb
201712.3 ppb16161.20 ppb - 23.0 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for trichloroacetic acid was defined by the Environmental Protection Agency as 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

NOTE: Sun Valley Gid purchases water from Truckee Meadows Water Authority which is required to test for trichloroacetic acid. Sample information shown below was taken by Truckee Meadows Water Authority.

Date Lab ID Result
2012-02-280212-457.90 ppb
2012-02-280212-467.60 ppb
2012-02-280212-478.50 ppb
2012-02-280212-487.20 ppb
2012-02-280212-497.10 ppb
2012-02-280212-507.60 ppb
2012-02-280212-5110.00 ppb
2012-02-280212-526.70 ppb
2012-02-280212-537.80 ppb
2012-02-280212-546.10 ppb
2012-02-280212-555.40 ppb
2012-02-280212-568.50 ppb
2012-02-280212-6111.0 ppb
2012-02-280212-634.70 ppb
2012-02-290212-578.90 ppb
2012-02-290212-585.80 ppb
2012-02-290212-594.60 ppb
2012-02-290212-604.00 ppb
2012-02-290212-623.20 ppb
2012-02-290212-645.20 ppb
2012-02-290212-658.80 ppb
2012-02-290212-664.70 ppb
2014-02-18A4B1676-0114.0 ppb
2014-02-18A4B1676-0213.0 ppb
2014-02-18A4B1676-0314.0 ppb
2014-02-18A4B1676-0416.0 ppb
2014-02-18A4B1676-0516.0 ppb
2014-02-18A4B1676-119.80 ppb
2014-02-18A4B1676-1212.0 ppb
2014-02-20A4B1676-0612.0 ppb
2014-02-20A4B1676-0713.0 ppb
2014-02-20A4B1676-089.10 ppb
2014-02-20A4B1676-0916.0 ppb
2014-02-20A4B1676-1012.0 ppb
2014-05-13A4E1375-019.10 ppb
2014-05-13A4E1375-0215.0 ppb
2014-05-13A4E1375-0318.0 ppb
2014-05-13A4E1375-0419.0 ppb
2014-05-13A4E1375-0514.0 ppb
2014-05-13A4E1375-0610.00 ppb
2014-05-13A4E1375-0713.0 ppb
2014-05-13A4E1375-0820.0 ppb
2014-05-13A4E1375-0921.0 ppb
2014-05-13A4E1375-1013.0 ppb
2014-05-13A4E1375-1110.00 ppb
2014-05-13A4E1375-1214.0 ppb
2014-08-12201408150519ND
2014-08-122014081505206.00 ppb
2014-08-122014081505216.80 ppb
2014-08-122014081505225.20 ppb
2014-08-122014081505234.80 ppb
2014-08-122014081505247.10 ppb
2014-08-122014081505256.70 ppb
2014-08-122014081505268.80 ppb
2014-08-122014081505276.30 ppb
2014-08-122014081505289.10 ppb
2014-08-122014081505299.00 ppb
2014-08-122014081505307.80 ppb
2014-08-192014082300956.70 ppb
2014-11-122014111501809.80 ppb
2014-11-122014111501815.00 ppb
2014-11-1220141115018214.0 ppb
2014-11-1220141115018314.0 ppb
2014-11-1220141115018411.0 ppb
2014-11-1220141115018511.0 ppb
2014-11-1220141115018612.0 ppb
2014-11-1220141115018712.0 ppb
2014-11-122014111501883.80 ppb
2014-11-122014111501894.30 ppb
2014-11-122014111501908.00 ppb
2014-11-1220141115019111.0 ppb
2015-02-171502002-0119.0 ppb
2015-02-171502002-0210.00 ppb
2015-02-171502002-0320.0 ppb
2015-02-171502002-0418.0 ppb
2015-02-171502002-0513.0 ppb
2015-02-171502002-0619.0 ppb
2015-02-171502002-0716.0 ppb
2015-02-171502002-0822.0 ppb
2015-02-171502002-0921.0 ppb
2015-02-171502002-1021.0 ppb
2015-02-171502002-1118.0 ppb
2015-02-171502002-1225.0 ppb
2015-05-191505022-0116.0 ppb
2015-05-191505022-025.80 ppb
2015-05-191505022-0315.0 ppb
2015-05-191505022-0416.0 ppb
2015-05-191505022-0515.0 ppb
2015-05-191505022-0614.0 ppb
2015-05-191505022-0716.0 ppb
2015-05-191505022-0819.0 ppb
2015-05-191505022-0913.0 ppb
2015-05-191505022-1020.0 ppb
2015-05-191505022-117.10 ppb
2015-05-191505022-1214.0 ppb
2015-08-171508038-017.70 ppb
2015-08-171508038-025.50 ppb
2015-08-171508038-0314.0 ppb
2015-08-171508038-0415.0 ppb
2015-08-171508038-0515.0 ppb
2015-08-171508038-069.70 ppb
2015-08-171508038-078.00 ppb
2015-08-171508038-085.60 ppb
2015-08-171508038-091.30 ppb
2015-08-171508038-102.80 ppb
2015-08-171508038-114.10 ppb
2015-08-171508038-126.60 ppb
2015-11-091511013-01EUR17.0 ppb
2015-11-091511013-02EUR7.70 ppb
2015-11-091511013-03EUR18.0 ppb
2015-11-091511013-04EUR17.0 ppb
2015-11-091511013-05EUR17.0 ppb
2015-11-091511013-06EUR15.0 ppb
2015-11-091511013-07EUR9.60 ppb
2015-11-091511013-08EUR17.0 ppb
2015-11-091511013-09EUR4.40 ppb
2015-11-091511013-10EUR3.10 ppb
2015-11-091511013-11EUR12.0 ppb
2015-11-091511013-12EUR18.0 ppb
2016-02-091602009-01EUR21.0 ppb
2016-02-091602009-02EUR10.00 ppb
2016-02-091602009-03EUR23.0 ppb
2016-02-091602009-04EUR24.0 ppb
2016-02-091602009-05EUR20.0 ppb
2016-02-091602009-06EUR14.0 ppb
2016-02-091602009-07EUR19.0 ppb
2016-02-091602009-08EUR19.0 ppb
2016-02-091602009-09EUR25.0 ppb
2016-02-091602009-10EUR21.0 ppb
2016-02-091602009-11EUR11.0 ppb
2016-02-091602009-12EUR37.0 ppb
2016-05-091605007-01EUR18.0 ppb
2016-05-091605007-02EUR11.0 ppb
2016-05-091605007-03EUR25.0 ppb
2016-05-091605007-04EUR26.0 ppb
2016-05-091605007-05EUR23.0 ppb
2016-05-091605007-06EUR22.0 ppb
2016-05-091605007-07EUR22.0 ppb
2016-05-091605007-08EUR26.0 ppb
2016-05-091605007-09EUR29.0 ppb
2016-05-091605007-10EUR32.0 ppb
2016-05-091605007-11EUR15.0 ppb
2016-05-091605007-12EUR23.0 ppb
2016-08-091608020-01EUR16.0 ppb
2016-08-091608020-02EUR14.0 ppb
2016-08-091608020-03EUR8.90 ppb
2016-08-091608020-04EUR16.0 ppb
2016-08-091608020-05EUR8.60 ppb
2016-08-091608020-06EUR10.00 ppb
2016-08-091608020-07EUR9.50 ppb
2016-08-091608020-08EUR12.0 ppb
2016-08-091608020-09EUR18.0 ppb
2016-08-091608020-10EUR8.20 ppb
2016-08-091608020-11EUR12.0 ppb
2016-08-091608020-12EURND
2016-11-081611004-01EUR29.0 ppb
2016-11-081611004-02EUR30.0 ppb
2016-11-081611004-03EUR9.10 ppb
2016-11-081611004-04EUR25.0 ppb
2016-11-081611004-05EUR9.30 ppb
2016-11-081611004-06EUR26.0 ppb
2016-11-081611004-07EUR18.0 ppb
2016-11-081611004-08EUR25.0 ppb
2016-11-081611004-09EUR26.0 ppb
2016-11-081611004-10EUR10.00 ppb
2016-11-081611004-11EUR24.0 ppb
2016-11-081611004-12EURND
2017-02-071702003-01EUR20.0 ppb
2017-02-071702003-02EUR20.0 ppb
2017-02-071702003-03EUR21.0 ppb
2017-02-071702003-04EUR31.0 ppb
2017-02-071702003-05EUR22.0 ppb
2017-02-071702003-06EUR22.0 ppb
2017-02-071702003-07EUR20.0 ppb
2017-02-071702003-08EUR20.0 ppb
2017-02-071702003-09EUR17.0 ppb
2017-02-071702003-10EUR22.0 ppb
2017-02-071702003-11EUR23.0 ppb
2017-02-071702003-12EURND
2017-05-091705019-01EUR15.0 ppb
2017-05-091705019-02EUR12.0 ppb
2017-05-091705019-03EUR15.0 ppb
2017-05-091705019-04EUR16.0 ppb
2017-05-091705019-05EUR16.0 ppb
2017-05-091705019-06EUR16.0 ppb
2017-05-091705019-07EUR5.20 ppb
2017-05-091705019-08EUR14.0 ppb
2017-05-091705019-09EUR14.0 ppb
2017-05-091705019-10EUR18.0 ppb
2017-05-091705019-11EUR10.00 ppb
2017-05-091705019-12EUR1.80 ppb
2017-08-091708009-01EUR16.0 ppb
2017-08-091708009-02EUR12.0 ppb
2017-08-091708009-03EUR6.30 ppb
2017-08-091708009-04EUR16.0 ppb
2017-08-091708009-05EUR6.60 ppb
2017-08-091708009-06EUR6.20 ppb
2017-08-091708009-07EUR7.30 ppb
2017-08-091708009-08EUR15.0 ppb
2017-08-091708009-09EUR16.0 ppb
2017-08-091708009-10EUR9.20 ppb
2017-08-091708009-11EUR2.20 ppb
2017-08-091708009-12EURND
2017-11-071711020-01EUR17.0 ppb
2017-11-071711020-02EUR2.40 ppb
2017-11-071711020-03EUR11.0 ppb
2017-11-071711020-04EUR18.0 ppb
2017-11-071711020-05EUR15.0 ppb
2017-11-071711020-06EUR3.80 ppb
2017-11-071711020-07EUR4.40 ppb
2017-11-071711020-08EUR6.20 ppb
2017-11-071711020-09EUR7.50 ppb
2017-11-071711020-10EUR7.50 ppb
2017-11-071711020-11EUR5.10 ppb
2017-11-071711020-12EURND