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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

City of Ripon

1,2,3-Trichloropropane is a potent carcinogen that contaminates drinking water in agricultural regions where it was historically used as soil fumigant. Click here to read more about carcinogenic VOCs.

MORE ABOUT THIS CONTAMINANT

 

54

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.0157 ppb71ND - 0.110 ppb
2014N/A00N/A
2015ND40ND
20160.0373 ppb113ND - 0.170 ppb
2017ND20ND
2018ND200ND
2019ND100ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.0007 ppb

The EWG Health Guideline of 0.0007 ppb for 1,2,3-trichloropropane was defined 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. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2013-12-18A3L0672-05AND
2013-12-18A3L0672-07AND
2013-12-18A3L0672-01AND
2013-12-18A3L0672-03A0.110 ppb
2013-12-18A3L0672-13AND
2013-12-18A3L0672-09AND
2013-12-18A3L0672-11AND
2015-06-082625-003-1138ND
2015-06-082625-007-0955ND
2015-06-082625-022-1030ND
2015-07-082625-024-0955ND
2016-05-255810-003-1015ND
2016-05-255810-024-1105ND
2016-05-255810-022-10400.170 ppb
2016-05-255810-020-1145ND
2016-05-255810-010-0947ND
2016-05-255810-007-1025ND
2016-06-152625-003-0800ND
2016-06-152625-010-0820ND
2016-07-215810-022-08000.110 ppb
2016-07-215810-022-14150.130 ppb
2016-10-202625-020-1045ND
2017-06-142625-010-0930ND
2017-10-242625-020-1020ND
2018-01-245810-010-0815ND
2018-01-245810-003-0852ND
2018-01-245810-007-0745ND
2018-01-245810-024-0918ND
2018-01-245810-020-0940ND
2018-04-305810-007-1005ND
2018-04-305810-020-1042ND
2018-04-305810-024-1025ND
2018-04-305810-003-1100ND
2018-04-305810-010-1120ND
2018-07-305810-024-0850ND
2018-07-305810-003-0740ND
2018-07-305810-007-0808ND
2018-07-305810-010-1135ND
2018-07-305810-020-0900ND
2018-10-185810-020-0947ND
2018-10-185810-007-0920ND
2018-10-185810-010-0855ND
2018-10-185810-024-1012ND
2018-10-185810-003-0835ND
2019-05-295810-024-0926ND
2019-05-295810-007-0909ND
2019-05-295810-010-1015ND
2019-05-295810-003-0845ND
2019-05-295810-020-0945ND
2019-08-145810-003-0915ND
2019-08-145810-024-1025ND
2019-08-145810-007-0945ND
2019-08-145810-010-0910ND
2019-08-145810-020-1005ND