1,2,3-Trichloropropane

Makawao

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
2014	0.0826 ppb	23	13	ND - 0.160 ppb
2015	N/A	0	0	N/A
2016	0.126 ppb	15	13	ND - 0.180 ppb
2017	0.113 ppb	20	14	ND - 0.180 ppb
2018	0.133 ppb	15	14	ND - 0.160 ppb
2019	0.129 ppb	14	13	ND - 0.160 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
2014-01-21	201401230404AM	ND
2014-02-20	201402260442	0.130 ppb
2014-03-12	201403140362	0.140 ppb
2014-03-17	201403190889	ND
2014-03-17	201403190885	ND
2014-03-17	201403190888	ND
2014-03-18	201403200528	0.140 ppb
2014-04-10	201404150381	0.140 ppb
2014-04-21	201404230460AM	ND
2014-04-29	201405010665	ND
2014-04-29	201405010562	0.140 ppb
2014-04-29	201405010616	ND
2014-05-01	201405050006	ND
2014-05-21	201405230299	0.140 ppb
2014-06-09	201406111008	0.150 ppb
2014-07-21	201407230465AM	ND
2014-07-22	201407240309	0.150 ppb
2014-08-13	201408150424	0.160 ppb
2014-09-10	201409130140	0.160 ppb
2014-10-15	201410170308	0.160 ppb
2014-10-20	201410220305AM	ND
2014-11-13	201411180413	0.150 ppb
2014-12-17	201412180338	0.140 ppb
2016-01-14		0.140 ppb
2016-02-17		0.150 ppb
2016-02-19		ND
2016-02-19		0.150 ppb
2016-03-16		0.150 ppb
2016-04-21		0.180 ppb
2016-05-24		ND
2016-05-24		0.140 ppb
2016-06-16		0.140 ppb
2016-07-14		0.140 ppb
2016-08-11		0.140 ppb
2016-09-26		0.140 ppb
2016-10-26		0.130 ppb
2016-11-21		0.140 ppb
2016-12-20		0.150 ppb
2017-01-19		0.160 ppb
2017-01-27		ND
2017-01-31		ND
2017-01-31		ND
2017-01-31		0.160 ppb
2017-02-09		0.160 ppb
2017-03-20		0.180 ppb
2017-04-25		0.170 ppb
2017-05-11		0.170 ppb
2017-06-27		0.160 ppb
2017-07-20		0.150 ppb
2017-08-04		0.170 ppb
2017-09-07		ND
2017-09-21		0.160 ppb
2017-10-19		0.150 ppb
2017-10-25		0.150 ppb
2017-10-25		ND
2017-10-25		ND
2017-11-08		0.160 ppb
2017-12-01		0.150 ppb
2018-01-18	201801190425	0.150 ppb
2018-02-01	201802020127	ND
2018-02-01	201802020326	0.140 ppb
2018-02-01	201802020322	0.150 ppb
2018-03-01	201803050156	0.140 ppb
2018-04-02	201804030559	0.140 ppb
2018-05-10	201805110553	0.140 ppb
2018-06-07	201804160017	0.110 ppb
2018-06-15	201806190238	0.130 ppb
2018-07-05	201805170027	0.160 ppb
2018-08-09	201806160106	0.130 ppb
2018-09-06	201807170008	0.160 ppb
2018-10-19	201810230619	0.160 ppb
2018-11-01	201811060443	0.150 ppb
2018-12-14	201812180301	0.140 ppb
2019-01-16	201901180113	0.160 ppb
2019-01-30	201902010195	ND
2019-01-30	201902010208	0.140 ppb
2019-02-20	201901300107	0.130 ppb
2019-03-21	201901300105	0.140 ppb
2019-04-17	201902140009	0.150 ppb
2019-05-16	201903160040	0.150 ppb
2019-06-19	201904160009	0.130 ppb
2019-07-11	201907160443	0.140 ppb
2019-08-23	201906160007	0.130 ppb
2019-09-24	201909250558	0.140 ppb
2019-10-16	201910180494	0.130 ppb
2019-11-21	201909160019	0.140 ppb
2019-12-12	201910170056	0.130 ppb