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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

Maunaolu Plantation

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

 

34

Samples

0

Samples exceeding legal limit (MCL)

19

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.282 ppb65ND - 0.610 ppb
2015N/A00N/A
20160.216 ppb84ND - 0.540 ppb
2017ND40ND
20180.279 ppb86ND - 0.660 ppb
20190.270 ppb84ND - 0.610 ppb

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
2014-02-19C14-02-0124AND
2014-06-09C14-06-0017A0.370 ppb
2014-07-10C14-07-0107A0.580 ppb
2014-09-10C14-09-0054A0.0600 ppb
2014-10-07C14-10-0055A0.610 ppb
2014-12-02C14-12-0026A0.0700 ppb
2016-02-080.540 ppb
2016-02-080.330 ppb
2016-03-21ND
2016-05-16ND
2016-08-230.480 ppb
2016-08-230.380 ppb
2016-09-07ND
2016-11-28ND
2017-04-10ND
2017-05-08ND
2017-07-17ND
2017-10-09ND
2018-03-06C18-03-0022AND
2018-06-042018060508810.660 ppb
2018-06-04C18-06-0019AND
2018-06-042018060508800.590 ppb
2018-08-27C18-08-0240A0.160 ppb
2018-10-302018103101060.150 ppb
2018-10-302018103101050.570 ppb
2018-11-12C18-11-0006A0.1000 ppb
2019-04-16C19-04-0115AND
2019-05-14C19-05-0064AND
2019-06-132019061400910.540 ppb
2019-06-132019061400900.480 ppb
2019-07-16C19-07-0154AND
2019-10-22C19-10-0089AND
2019-11-182019111906780.610 ppb
2019-11-182019111906770.530 ppb