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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

San Antonio Water Company

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.

 

42

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017ND90ND
2018ND310ND
2019ND20ND

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
2017-11-293761-001-1118ND
2017-11-293761-011-0720ND
2017-11-293761-013-1137ND
2017-11-293761-004-0715ND
2017-11-293761-016-1010ND
2017-11-293761-003-0735ND
2017-11-293761-017-1148ND
2017-11-293761-002-0942ND
2017-11-293761-018-0935ND
2018-03-083761-017-1000ND
2018-03-083761-002-1150ND
2018-03-083761-003-1045ND
2018-03-083761-004-0840ND
2018-03-083761-013-1015ND
2018-03-083761-018-1140ND
2018-03-083761-010-1215ND
2018-03-083761-011-1115ND
2018-03-133761-016-1150ND
2018-03-133761-021-1045ND
2018-03-133761-001-1210ND
2018-06-263761-003-1335ND
2018-06-263761-018-0937ND
2018-06-263761-001-1250ND
2018-06-263761-017-1235ND
2018-06-263761-002-0924ND
2018-06-263761-016-1015ND
2018-06-263761-013-1225ND
2018-06-263761-004-1317ND
2018-06-263761-011-1320ND
2018-06-263761-010-0600ND
2018-09-113761-013-1143ND
2018-09-113761-003-1205ND
2018-09-113761-004-1220ND
2018-09-113761-002-1113ND
2018-09-113761-011-1230ND
2018-09-113761-017-1135ND
2018-09-113761-001-0950ND
2018-09-113761-010-2030ND
2018-09-113761-018-1104ND
2018-09-133761-016-0700ND
2019-01-043761-010-0850ND
2019-12-113761-010-1100ND