1,2,3-Trichloropropane

Brock Mutual 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.

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	N/A	0	0	N/A
2015	N/A	0	0	N/A
2016	0.0633 ppb	10	10	0.0150 ppb - 0.140 ppb
2017	0.0541 ppb	24	23	ND - 0.120 ppb
2018	0.0449 ppb	23	22	ND - 0.130 ppb
2019	0.0687 ppb	20	19	ND - 0.180 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
2016-08-04	5806-002-1455	0.0150 ppb
2016-08-04	5806-001-1520	0.0940 ppb
2016-09-01	5806-001-0829	0.0900 ppb
2016-09-01	5806-002-0851	0.0160 ppb
2016-10-06	5806-002-0958	0.0150 ppb
2016-10-06	5806-001-0931	0.0930 ppb
2016-11-03	5806-002-0950	0.0180 ppb
2016-11-03	5806-001-0900	0.140 ppb
2016-12-01	5806-002-0920	0.0220 ppb
2016-12-01	5806-001-0847	0.130 ppb
2017-01-04	5806-001-1020	0.120 ppb
2017-01-04	5806-002-1055	0.00680 ppb
2017-02-02	5806-002-0900	0.00700 ppb
2017-02-02	5806-001-0820	0.0900 ppb
2017-03-02	5806-002-1010	ND
2017-03-02	5806-001-0930	0.0880 ppb
2017-04-06	5806-002-0940	0.0120 ppb
2017-04-06	5806-001-0918	0.110 ppb
2017-05-04	5806-002-1043	0.0140 ppb
2017-05-04	5806-001-1105	0.110 ppb
2017-06-01	5806-002-1153	0.00980 ppb
2017-06-01	5806-001-1130	0.0900 ppb
2017-07-06	5806-002-0717	0.0150 ppb
2017-07-06	5806-001-0658	0.120 ppb
2017-08-18	5806-001-0945	0.0840 ppb
2017-08-18	5806-002-1010	0.0160 ppb
2017-09-14	5806-001-0720	0.0950 ppb
2017-09-14	5806-002-0925	0.00990 ppb
2017-10-12	5806-002-1510	0.0240 ppb
2017-10-12	5806-001-1525	0.0900 ppb
2017-11-02	5806-002-0925	0.0290 ppb
2017-11-02	5806-001-0950	0.1000 ppb
2017-12-07	5806-002-0920	0.00840 ppb
2017-12-07	5806-001-0855	0.0490 ppb
2018-01-04	5806-002-1340	0.0120 ppb
2018-01-04	5806-001-1315	0.110 ppb
2018-02-23	5806-002-1105	0.0130 ppb
2018-02-23	5806-001-1125	0.0380 ppb
2018-03-01	5806-002-0850	0.00850 ppb
2018-03-01	5806-001-0810	0.0570 ppb
2018-04-13	5806-001-1315	0.110 ppb
2018-04-13	5806-002-1330	0.0120 ppb
2018-05-03	5806-002-1020	0.0160 ppb
2018-05-03	5806-001-0950	0.110 ppb
2018-07-05	5806-001-1230	0.0180 ppb
2018-07-05	5806-002-1200	0.130 ppb
2018-07-12	5806-001-0918	0.0260 ppb
2018-08-09	5806-001-1230	0.0140 ppb
2018-08-09	5806-002-1242	0.0240 ppb
2018-09-05	5806-001-1040	ND
2018-09-05	5806-002-1110	0.0930 ppb
2018-10-04	5806-001-1736	0.0690 ppb
2018-10-04	5806-002-1740	0.0130 ppb
2018-11-01	5806-001-1015	0.0790 ppb
2018-11-01	5806-002-1040	0.0270 ppb
2018-12-13	5806-002-1111	0.01000 ppb
2018-12-13	5806-001-1030	0.0440 ppb
2019-02-07	5806-001-1013	0.0670 ppb
2019-02-07	5806-002-1046	0.0160 ppb
2019-03-06	5806-001-1020	0.0750 ppb
2019-03-06	5806-002-1046	0.0200 ppb
2019-04-04	5806-001-1106	0.120 ppb
2019-04-04	5806-002-1020	0.0240 ppb
2019-06-13	5806-001-1110	0.130 ppb
2019-06-13	5806-002-1045	0.0190 ppb
2019-07-11	5806-001-1111	0.130 ppb
2019-07-11	5806-002-1035	0.0210 ppb
2019-08-01	5806-001-1115	0.0560 ppb
2019-08-01	5806-002-1045	ND
2019-09-19	5806-001-1145	0.120 ppb
2019-09-19	5806-002-1105	0.0400 ppb
2019-10-17	5806-002-1100	0.0290 ppb
2019-10-17	5806-001-1145	0.130 ppb
2019-11-07	5806-002-1045	0.0430 ppb
2019-11-07	5806-001-1120	0.180 ppb
2019-12-12	5806-002-1010	0.0330 ppb
2019-12-12	5806-001-1025	0.120 ppb