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EWG's Tap Water Database — 2019 UPDATE

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1,2,3-Trichloropropane

Signal Hill - City, Water Department

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.

 

23

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
2014ND50ND
2015ND10ND
2016ND20ND
2017ND150ND

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
2014-05-154E15062-01AND
2014-05-154E15062-05AND
2014-10-234J23046-01AND
2014-11-104K10086-01AND
2014-11-104K10086-05AND
2015-02-245B24073-01AND
2016-07-129588-006-0930ND
2016-07-129588-005-0905ND
2017-08-221805-023-1335ND
2017-08-291805-023-1042ND
2017-09-051805-023-1235ND
2017-09-111805-023-1220ND
2017-09-181805-023-1250ND
2017-09-251805-023-1457ND
2017-10-021805-023-1123ND
2017-10-091805-023-1405ND
2017-10-161805-023-1150ND
2017-10-231805-023-1400ND
2017-10-301805-023-0800ND
2017-11-061805-023-0952ND
2017-11-131805-023-0815ND
2017-11-201805-023-1151ND
2017-12-181805-023-1310ND