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EWG's Tap Water Database — 2021 UPDATE

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1,1,1,2-Tetrachloroethane

City of Gilroy

1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.

MORE ABOUT THIS CONTAMINANT

 

146

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND330ND
2015ND480ND
2016ND310ND
2017ND300ND
2018ND40ND
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 1 ppb

The EWG Health Guideline of 1 ppb for 1,1,1,2-tetrachloroethane 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

Date Lab ID Result
2014-01-155810-001-0925ND
2014-01-155810-002-0947ND
2014-01-155810-007-0835ND
2014-02-125810-001-0822ND
2014-02-125810-002-0853ND
2014-03-205810-001-0813ND
2014-03-205810-002-0800ND
2014-04-235810-001-0900ND
2014-04-235810-002-0749ND
2014-04-235810-004-0945ND
2014-04-235810-006-1058ND
2014-04-235810-007-1039ND
2014-04-235810-008-0819ND
2014-04-235810-010-0913ND
2014-04-235810-011-0847ND
2014-05-215810-001-0750ND
2014-05-215810-002-0800ND
2014-06-125810-001-0747ND
2014-06-125810-002-0756ND
2014-07-175810-001-0946ND
2014-07-175810-002-0802ND
2014-07-175810-007-1011ND
2014-08-285810-001-1121ND
2014-08-285810-002-1130ND
2014-09-175810-001-0801ND
2014-09-175810-002-0822ND
2014-10-155810-001-0759ND
2014-10-155810-002-1050ND
2014-10-155810-007-0836ND
2014-11-195810-002-0748ND
2014-11-245810-001-1040ND
2014-12-225810-001-0930ND
2014-12-225810-002-1000ND
2015-01-215810-001-0822ND
2015-01-215810-002-0845ND
2015-01-215810-007-0925ND
2015-02-115810-001-0815ND
2015-02-115810-002-0755ND
2015-03-105810-001-0740ND
2015-03-105810-002-0751ND
2015-04-225810-001-0915ND
2015-04-225810-002-0944ND
2015-04-225810-004-1305ND
2015-04-225810-006-0845ND
2015-04-225810-007-1142ND
2015-04-225810-008-1215ND
2015-04-225810-009-1239ND
2015-04-225810-010-1110ND
2015-04-225810-011-1040ND
2015-05-205810-006-0945ND
2015-05-205810-007-1300ND
2015-05-205810-008-1025ND
2015-05-205810-009-1100ND
2015-05-205810-010-0810ND
2015-05-215810-001-0800ND
2015-05-215810-002-1010ND
2015-05-215810-004-1250ND
2015-05-215810-011-0955ND
2015-06-225810-001-0800ND
2015-06-225810-002-0820ND
2015-07-205810-001-0812ND
2015-07-205810-002-0830ND
2015-07-205810-007-1022ND
2015-08-195810-001-0802ND
2015-08-195810-001-1225ND
2015-08-195810-002-0817ND
2015-08-195810-002-1250ND
2015-08-195810-004-1320ND
2015-08-195810-006-0948ND
2015-08-195810-007-1120ND
2015-08-195810-008-1019ND
2015-08-195810-009-1044ND
2015-08-195810-010-1203ND
2015-08-205810-011-0845ND
2015-09-295810-001-0852ND
2015-09-295810-002-0840ND
2015-10-145810-001-1040ND
2015-11-185810-001-0840ND
2015-11-185810-002-0925ND
2015-12-145810-001-0840ND
2015-12-145810-002-0821ND
2016-01-205810-001-0940ND
2016-01-205810-002-0832ND
2016-02-105810-001-0830ND
2016-02-105810-002-0820ND
2016-03-165810-001-1030ND
2016-03-165810-002-1050ND
2016-04-255810-001-0832ND
2016-04-255810-002-1055ND
2016-04-255810-004-0855ND
2016-04-255810-006-0905ND
2016-04-255810-008-0950ND
2016-04-255810-009-0940ND
2016-04-255810-010-1041ND
2016-04-255810-011-1005ND
2016-05-185810-001-0905ND
2016-05-185810-002-0858ND
2016-06-165810-001-0820ND
2016-06-165810-002-0840ND
2016-07-205810-001-0915ND
2016-07-205810-002-0945ND
2016-07-205810-006-1019ND
2016-08-045810-001-1125ND
2016-08-045810-002-1140ND
2016-09-225810-001-0756ND
2016-09-225810-002-0816ND
2016-10-135810-001-0750ND
2016-10-135810-002-0820ND
2016-11-095810-001-0830ND
2016-11-095810-002-0850ND
2016-12-155810-001-0835ND
2016-12-155810-002-0850ND
2017-01-185810-001-0855ND
2017-01-185810-002-0835ND
2017-02-155810-001-0755ND
2017-02-155810-002-0815ND
2017-03-155810-001-0810ND
2017-03-155810-002-0830ND
2017-04-135810-001-0935ND
2017-04-135810-002-0830ND
2017-04-135810-006-0915ND
2017-04-135810-008-1025ND
2017-04-135810-009-1035ND
2017-04-135810-010-1015ND
2017-04-135810-011-0800ND
2017-05-155810-001-1140ND
2017-05-155810-002-1120ND
2017-06-135810-001-0740ND
2017-06-135810-002-0800ND
2017-06-135810-004-0817ND
2017-06-135810-007-0945ND
2017-07-175810-001-1130ND
2017-07-175810-002-1250ND
2017-07-175810-007-1050ND
2017-08-245810-001-0740ND
2017-08-245810-002-0758ND
2017-09-185810-001-0822ND
2017-09-185810-002-0810ND
2017-10-055810-001-0805ND
2017-10-055810-007-0845ND
2017-11-205810-001-1300ND
2017-12-145810-001-0845ND
2018-01-175810-001-0835ND
2018-01-175810-007-1005ND
2018-02-145810-001-0828ND
2018-02-275810-002-1300ND