1,2,3-Trichloropropane

Waialua

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

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2013	0.220 ppb	1	1	0.220 ppb
2014	0.291 ppb	9	5	ND - 0.730 ppb
2015	N/A	0	0	N/A
2016	0.124 ppb	4	2	ND - 0.400 ppb
2017	0.117 ppb	4	2	ND - 0.390 ppb
2018	0.0103 ppb	4	1	ND - 0.0410 ppb
2019	0.0300 ppb	4	1	ND - 0.120 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
2013-08-19	201308210478AM	0.220 ppb
2014-02-07	201402110357AM	ND
2014-02-12	201402140299	ND
2014-04-08	201404100545	ND
2014-07-10	C14-07-0101A	0.730 ppb
2014-07-16	201407180297	ND
2014-08-04	201408060608	0.590 ppb
2014-10-01	201410030253	0.590 ppb
2014-10-20	201410220106	0.550 ppb
2014-10-27	201410290478	0.160 ppb
2016-01-12		0.0970 ppb
2016-04-11		0.400 ppb
2016-07-13		ND
2016-10-07		ND
2017-02-22		ND
2017-04-13		0.0760 ppb
2017-08-03		0.390 ppb
2017-10-31		ND
2018-01-29	201801300813	ND
2018-04-18	201804200572	ND
2018-07-11	201807140224	ND
2018-10-31	201811020360	0.0410 ppb
2019-01-31	201902010245	0.120 ppb
2019-04-12	201904160172	ND
2019-08-22	201908230136	ND
2019-10-14	201910160313	ND