1,2-Dibromo-3-chloropropane (DBCP)

City of Sanger

1,2-Dibromo-3-chloropropane is a pesticide fumigant banned in the 1970s after scientists discovered it caused sterility in men who worked with it. The chemical causes cancer in laboratory animals and may cause cancer in people. Read More.

This pesticide breaks down very slowly in the environment. It remains in groundwater and drinking water wells in the agricultural areas where it was sprayed in the past. Men exposed to this pesticide in the fields suffered from infertility and testicular damage, and tended to have fewer male babies.

MORE ABOUT THIS CONTAMINANT

355

Samples

Samples exceeding legal limit (MCL)

236

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	0.0162 ppb	85	42	ND - 0.0800 ppb
2015	0.0192 ppb	72	38	ND - 0.0770 ppb
2016	0.0324 ppb	81	59	ND - 0.1000 ppb
2017	0.0620 ppb	1	1	0.0620 ppb
2018	0.0323 ppb	60	46	ND - 0.0790 ppb
2019	0.0380 ppb	56	50	ND - 0.0760 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.0017 ppb

The EWG Health Guideline of 0.0017 ppb for 1,2-dibromo-3-chloropropane 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.

EPA Maximum Contaminant
Level (MCL) 0.2 ppb

The legal limit for 1,2-dibromo-3-chloropropane, established in 1991, was based on analytical detection limits at the time that the standard was set. This limit does not fully protect against the risk of cancer due to 1,2-dibromo-3-chloropropane exposure.

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-01-07	5802-020-1355	ND
2014-01-15	5802-019-1415	ND
2014-01-22	5802-017-1315	ND
2014-01-22	5802-023-1425	ND
2014-01-28	5802-021-1400	ND
2014-02-04	5802-020-1340	ND
2014-02-11	5802-019-1455	ND
2014-02-19	5802-017-1310	ND
2014-02-19	5802-020-1015	ND
2014-02-19	5802-023-1435	ND
2014-02-25	5802-021-1455	ND
2014-03-04	5802-020-1250	ND
2014-03-11	5802-019-1515	ND
2014-03-19	5802-017-1110	ND
2014-03-19	5802-020-0950	0.0150 ppb
2014-03-19	5802-023-1305	ND
2014-03-25	5802-021-1445	ND
2014-04-01	5802-020-1135	0.0180 ppb
2014-04-08	5802-019-1340	0.0140 ppb
2014-04-15	5802-017-1145	ND
2014-04-15	5802-020-1245	0.0230 ppb
2014-04-15	5802-023-1405	ND
2014-04-22	5802-020-1335	0.0190 ppb
2014-04-22	5802-021-1255	ND
2014-04-29	5802-020-1205	0.0240 ppb
2014-05-07	5802-019-1405	0.0110 ppb
2014-05-07	5802-020-1255	0.0180 ppb
2014-05-13	5802-017-1120	ND
2014-05-13	5802-020-1215	0.0180 ppb
2014-05-13	5802-023-1325	ND
2014-05-20	5802-020-1445	0.0160 ppb
2014-05-20	5802-021-1330	ND
2014-05-28	5802-020-1315	0.0230 ppb
2014-06-03	5802-019-1300	0.0150 ppb
2014-06-03	5802-020-1420	0.0300 ppb
2014-06-10	5802-017-1210	ND
2014-06-10	5802-020-1300	0.0360 ppb
2014-06-10	5802-023-1350	ND
2014-06-17	5802-020-0935	0.0380 ppb
2014-06-17	5802-021-1305	ND
2014-06-24	5802-020-1200	0.0390 ppb
2014-07-01	5802-019-1330	0.0140 ppb
2014-07-01	5802-020-1435	0.0340 ppb
2014-07-08	5802-017-1125	ND
2014-07-08	5802-020-1220	0.0430 ppb
2014-07-08	5802-023-1320	ND
2014-07-15	5802-020-1410	0.0390 ppb
2014-07-15	5802-021-1335	ND
2014-07-22	5802-020-1200	0.0400 ppb
2014-07-29	5802-019-1335	0.0170 ppb
2014-07-29	5802-020-1430	0.0460 ppb
2014-08-05	5802-017-1100	ND
2014-08-05	5802-020-1210	0.0400 ppb
2014-08-05	5802-023-1255	ND
2014-08-12	5802-020-1330	0.0380 ppb
2014-08-12	5802-021-1240	ND
2014-08-20	5802-020-0855	0.0510 ppb
2014-08-26	5802-019-1315	0.0150 ppb
2014-08-26	5802-020-1415	0.0500 ppb
2014-09-03	5802-017-1135	ND
2014-09-03	5802-020-1230	0.0530 ppb
2014-09-03	5802-023-1330	ND
2014-09-23	5802-019-1345	0.0180 ppb
2014-09-30	5802-017-1255	0.0110 ppb
2014-09-30	5802-020-1335	0.0800 ppb
2014-09-30	5802-023-1445	ND
2014-10-07	5802-020-1405	0.0760 ppb
2014-10-07	5802-021-1215	ND
2014-10-14	5802-020-1310	0.0690 ppb
2014-10-21	5802-019-1405	ND
2014-10-29	5802-017-1225	0.0140 ppb
2014-10-29	5802-023-1425	ND
2014-11-04	5802-020-1255	0.0790 ppb
2014-11-04	5802-021-1350	ND
2014-11-18	5802-019-1455	0.0140 ppb
2014-11-24	5802-017-1125	0.0120 ppb
2014-11-24	5802-023-1340	ND
2014-12-03	5802-021-1240	ND
2014-12-16	5802-019-1420	0.0140 ppb
2014-12-16	5802-020-1505	0.0500 ppb
2014-12-22	5802-017-1235	ND
2014-12-22	5802-020-1330	0.0550 ppb
2014-12-22	5802-023-1425	ND
2014-12-29	5802-020-1345	0.0520 ppb
2014-12-29	5802-021-1255	ND
2015-01-06	5802-020-1215	0.0540 ppb
2015-01-13	5802-019-1340	ND
2015-01-13	5802-020-1440	0.0680 ppb
2015-01-21	5802-020-1115	0.0630 ppb
2015-01-28	5802-020-1455	0.0660 ppb
2015-02-03	5802-020-1255	0.0670 ppb
2015-02-10	5802-019-1405	0.0120 ppb
2015-02-18	5802-017-1225	0.0130 ppb
2015-02-18	5802-023-1440	ND
2015-02-24	5802-020-1225	0.0620 ppb
2015-02-24	5802-021-1400	ND
2015-03-03	5802-020-1245	0.0630 ppb
2015-03-10	5802-019-1415	0.0140 ppb
2015-03-10	5802-020-1200	0.0590 ppb
2015-03-17	5802-017-1230	0.0180 ppb
2015-03-17	5802-020-0950	0.0660 ppb
2015-03-17	5802-023-1425	ND
2015-03-24	5802-020-0910	0.0770 ppb
2015-03-24	5802-021-1355	ND
2015-04-02	5802-020-1345	ND
2015-04-08	5802-019-1515	0.0160 ppb
2015-04-14	5802-017-1155	0.0190 ppb
2015-04-14	5802-023-1420	ND
2015-04-21	5802-021-1355	ND
2015-04-28	5802-017-1345	0.0180 ppb
2015-04-28	5802-020-1300	ND
2015-05-05	5802-019-1340	0.0140 ppb
2015-05-13	5802-017-1210	0.0170 ppb
2015-05-13	5802-023-1410	ND
2015-05-19	5802-021-1405	ND
2015-05-26	5802-017-1325	ND
2015-05-26	5802-020-1405	ND
2015-06-02	5802-019-1425	0.0160 ppb
2015-06-09	5802-017-1155	0.0180 ppb
2015-06-09	5802-023-1400	ND
2015-06-16	5802-021-1335	ND
2015-06-30	5802-019-1355	0.0140 ppb
2015-07-07	5802-023-1225	ND
2015-07-14	5802-021-1335	ND
2015-07-21	5802-020-1400	ND
2015-07-28	5802-017-1305	ND
2015-07-28	5802-019-1450	ND
2015-08-04	5802-017-1225	ND
2015-08-04	5802-023-1445	ND
2015-08-18	5802-017-0955	0.0250 ppb
2015-08-18	5802-020-0925	ND
2015-08-25	5802-019-1455	0.0130 ppb
2015-09-08	5802-021-1405	ND
2015-09-15	5802-017-1210	0.0370 ppb
2015-09-15	5802-020-1315	ND
2015-09-22	5802-019-1410	0.0130 ppb
2015-09-29	5802-017-1155	0.0460 ppb
2015-09-29	5802-023-1415	ND
2015-10-06	5802-021-1355	ND
2015-10-13	5802-017-1320	0.0530 ppb
2015-10-13	5802-020-1410	ND
2015-10-21	5802-019-1420	0.0130 ppb
2015-10-28	5802-017-1215	0.0610 ppb
2015-10-28	5802-023-1415	ND
2015-11-03	5802-021-1405	ND
2015-11-09	5802-017-1130	0.0610 ppb
2015-11-09	5802-020-1210	ND
2015-11-17	5802-019-1440	0.0140 ppb
2015-11-23	5802-017-1130	0.0550 ppb
2015-11-23	5802-023-1235	0.0110 ppb
2015-12-01	5802-021-1435	ND
2015-12-08	5802-017-1255	0.0710 ppb
2015-12-08	5802-020-1350	ND
2015-12-15	5802-019-1435	0.0110 ppb
2015-12-22	5802-017-1255	0.0470 ppb
2015-12-22	5802-023-1020	0.0170 ppb
2015-12-29	5802-021-1405	ND
2016-01-06	5802-017-1320	0.0520 ppb
2016-01-06	5802-020-1215	ND
2016-01-12	5802-019-1425	0.0130 ppb
2016-01-20	5802-017-1145	0.0560 ppb
2016-01-20	5802-023-1345	0.0200 ppb
2016-01-26	5802-021-1400	ND
2016-02-02	5802-017-1235	0.0530 ppb
2016-02-02	5802-020-1330	ND
2016-02-09	5802-019-1350	0.0130 ppb
2016-02-16	5802-017-1210	0.0550 ppb
2016-02-16	5802-023-1415	0.0260 ppb
2016-02-23	5802-021-1400	ND
2016-03-01	5802-017-1215	0.0720 ppb
2016-03-01	5802-020-1305	0.0120 ppb
2016-03-08	5802-019-1340	ND
2016-03-15	5802-017-1140	0.0750 ppb
2016-03-15	5802-023-1340	0.0370 ppb
2016-03-23	5802-021-1355	ND
2016-03-29	5802-017-1225	0.0640 ppb
2016-03-29	5802-020-1255	ND
2016-04-05	5802-019-1430	0.0130 ppb
2016-04-12	5802-017-1205	0.0820 ppb
2016-04-12	5802-023-1405	0.0520 ppb
2016-04-19	5802-021-1400	ND
2016-04-26	5802-020-1305	0.0120 ppb
2016-05-02	5802-017-1325	ND
2016-05-03	5802-019-1315	0.0110 ppb
2016-05-10	5802-017-1240	ND
2016-05-10	5802-023-1245	0.0490 ppb
2016-05-17	5802-021-1355	ND
2016-05-24	5802-020-1305	0.0160 ppb
2016-05-24	5802-023-1145	0.0550 ppb
2016-06-01	5802-019-1410	0.0140 ppb
2016-06-07	5802-017-1250	ND
2016-06-07	5802-023-1440	0.0560 ppb
2016-06-14	5802-021-1435	ND
2016-06-21	5802-020-1310	0.0230 ppb
2016-06-21	5802-023-1400	0.0500 ppb
2016-06-28	5802-019-1345	0.0140 ppb
2016-07-05	5802-017-1135	ND
2016-07-05	5802-023-1405	0.0600 ppb
2016-07-19	5802-020-1350	0.0350 ppb
2016-07-19	5802-023-1240	0.0590 ppb
2016-07-26	5802-019-1340	0.0180 ppb
2016-08-02	5802-017-1125	ND
2016-08-02	5802-020-1215	0.0400 ppb
2016-08-02	5802-023-1400	0.0710 ppb
2016-08-16	5802-020-1310	0.0410 ppb
2016-08-16	5802-023-1230	0.0790 ppb
2016-08-23	5802-019-1405	0.0220 ppb
2016-08-30	5802-017-1135	ND
2016-08-30	5802-020-1240	0.0420 ppb
2016-08-30	5802-023-1345	0.0720 ppb
2016-09-13	5802-020-1400	0.0450 ppb
2016-09-13	5802-023-1130	0.0790 ppb
2016-09-20	5802-019-1405	0.0170 ppb
2016-09-27	5802-017-1210	ND
2016-09-27	5802-020-1320	0.0510 ppb
2016-09-27	5802-023-1455	0.0900 ppb
2016-10-04	5802-020-1305	0.0440 ppb
2016-10-04	5802-023-1215	0.0850 ppb
2016-10-11	5802-021-1335	ND
2016-10-18	5802-019-1440	0.0150 ppb
2016-10-25	5802-017-1120	ND
2016-10-25	5802-020-1300	0.0400 ppb
2016-10-25	5802-023-1400	0.1000 ppb
2016-11-01	5802-021-1410	0.01000 ppb
2016-11-08	5802-020-1345	0.0400 ppb
2016-11-08	5802-023-1230	0.0750 ppb
2016-11-15	5802-019-1435	ND
2016-11-22	5802-017-1215	ND
2016-11-22	5802-020-1100	0.0490 ppb
2016-11-22	5802-023-1410	0.0800 ppb
2016-11-29	5802-021-1345	0.0160 ppb
2016-12-06	5802-020-1420	0.0450 ppb
2016-12-06	5802-023-1250	0.0880 ppb
2016-12-14	5802-019-1455	0.0140 ppb
2016-12-20	5802-017-1200	ND
2016-12-20	5802-020-1335	0.0300 ppb
2016-12-20	5802-023-1500	0.0560 ppb
2016-12-27	5802-021-1445	0.0180 ppb
2017-06-01		0.0620 ppb*
2018-01-04	5802-020-1215	0.0760 ppb
2018-01-10	5802-019-1430	0.0140 ppb
2018-01-16	5802-017-1340	ND
2018-01-16	5802-020-1225	0.0590 ppb
2018-01-17	5802-023-1040	ND
2018-01-23	5802-021-1430	0.0580 ppb
2018-01-30	5802-020-1320	0.0690 ppb
2018-02-06	5802-019-1415	0.0110 ppb
2018-02-06	5802-021-1455	0.0490 ppb
2018-02-13	5802-023-1420	ND
2018-02-21	5802-021-1415	0.0790 ppb
2018-03-06	5802-019-1455	0.0190 ppb
2018-03-13	5802-017-1220	ND
2018-03-13	5802-020-1430	0.0640 ppb
2018-03-14	5802-023-1225	ND
2018-03-27	5802-020-1355	0.0520 ppb
2018-04-03	5802-019-1435	0.0150 ppb
2018-04-10	5802-017-1240	ND
2018-04-10	5802-020-1350	0.0550 ppb
2018-04-10	5802-023-1425	ND
2018-04-24	5802-020-1410	0.0690 ppb
2018-05-01	5802-019-1455	0.0140 ppb
2018-05-08	5802-017-1200	0.01000 ppb
2018-05-08	5802-020-1325	0.0510 ppb
2018-05-08	5802-023-1420	ND
2018-05-22	5802-020-1340	0.0540 ppb
2018-05-30	5802-019-1435	0.0130 ppb
2018-06-05	5802-023-1445	ND
2018-06-07	5802-021-1010	0.0190 ppb
2018-07-03	5802-017-1225	0.0180 ppb
2018-07-03	5802-020-1325	0.0450 ppb
2018-07-03	5802-023-1430	ND
2018-07-17	5802-020-1415	0.0650 ppb
2018-07-24	5802-019-1505	0.0170 ppb
2018-07-31	5802-017-1220	0.0150 ppb
2018-07-31	5802-020-1340	0.0580 ppb
2018-07-31	5802-023-1515	ND
2018-08-14	5802-020-1325	0.0550 ppb
2018-08-23	5802-021-0955	0.0230 ppb
2018-08-28	5802-017-1245	0.0180 ppb
2018-08-28	5802-020-1430	0.0650 ppb
2018-09-11	5802-020-1515	0.0680 ppb
2018-09-12	5802-021-1115	0.0610 ppb
2018-09-18	5802-021-1100	0.0550 ppb
2018-09-25	5802-017-1240	0.0210 ppb
2018-09-25	5802-020-1150	0.0560 ppb
2018-09-25	5802-023-1415	ND
2018-10-09	5802-020-1335	0.0550 ppb
2018-10-23	5802-017-1155	0.0240 ppb
2018-10-23	5802-020-1310	0.0600 ppb
2018-10-23	5802-023-1415	ND
2018-11-06	5802-020-1335	0.0560 ppb
2018-11-14	5802-019-1405	0.0160 ppb
2018-11-19	5802-017-1120	0.0250 ppb
2018-11-19	5802-020-1310	0.0550 ppb
2018-12-04	5802-020-1245	0.0570 ppb
2018-12-11	5802-019-1440	0.0150 ppb
2018-12-18	5802-017-1155	0.0270 ppb
2018-12-18	5802-020-1000	0.0560 ppb
2018-12-18	5802-023-1410	ND
2019-01-02	5802-020-1310	0.0650 ppb
2019-01-08	5802-019-1445	0.0180 ppb
2019-01-15	5802-017-1140	0.0320 ppb
2019-01-15	5802-020-0915	0.0600 ppb
2019-01-22	5802-023-1420	ND
2019-01-29	5802-020-1345	0.0620 ppb
2019-02-05	5802-019-1430	0.0190 ppb
2019-02-12	5802-017-1320	0.0400 ppb
2019-02-12	5802-020-1215	0.0640 ppb
2019-02-12	5802-023-1510	ND
2019-03-04	5802-019-1425	0.0160 ppb
2019-03-12	5802-017-1220	0.0330 ppb
2019-03-12	5802-020-1015	0.0540 ppb
2019-03-26	5802-017-1245	0.0360 ppb
2019-03-26	5802-020-1345	0.0500 ppb
2019-04-03	5802-019-1435	0.0160 ppb
2019-04-09	5802-017-1245	0.0390 ppb
2019-04-09	5802-020-1345	0.0530 ppb
2019-04-09	5802-023-1435	ND
2019-04-23	5802-017-1230	0.0480 ppb
2019-04-23	5802-020-1315	0.0540 ppb
2019-04-30	5802-019-1425	0.0160 ppb
2019-05-07	5802-017-1240	0.0400 ppb
2019-05-07	5802-020-1000	0.0470 ppb
2019-05-07	5802-023-1435	ND
2019-05-29	5802-019-1455	0.0150 ppb
2019-06-04	5802-017-1315	0.0410 ppb
2019-06-04	5802-020-1030	0.0520 ppb
2019-07-02	5802-017-1215	0.0520 ppb
2019-07-02	5802-020-1320	0.0470 ppb
2019-07-02	5802-023-1430	ND
2019-07-16	5802-017-1320	0.0590 ppb
2019-07-16	5802-020-1415	0.0570 ppb
2019-07-23	5802-019-1500	0.0110 ppb
2019-07-30	5802-017-1220	0.0670 ppb
2019-07-30	5802-020-1010	0.0530 ppb
2019-07-30	5802-023-1430	ND
2019-08-20	5802-019-1425	0.0130 ppb
2019-08-27	5802-017-1155	0.0660 ppb
2019-08-27	5802-020-1330	0.0590 ppb
2019-09-17	5802-019-1455	0.0160 ppb
2019-09-24	5802-017-1235	0.0630 ppb
2019-09-24	5802-020-1000	0.0530 ppb
2019-09-24	5802-023-1450	0.0130 ppb
2019-10-08	5802-017-1315	0.0680 ppb
2019-10-08	5802-020-1400	0.0600 ppb
2019-10-15	5802-019-1450	0.0150 ppb
2019-11-05	5802-017-0855	0.0520 ppb
2019-11-05	5802-020-1410	0.0520 ppb
2019-11-13	5802-019-1450	0.0130 ppb
2019-12-10	5802-019-1445	0.0140 ppb
2019-12-17	5802-017-1240	0.0760 ppb
2019-12-17	5802-020-1345	0.0530 ppb
2019-12-17	5802-023-1440	0.0130 ppb
2019-12-30	5802-017-1030	0.0610 ppb
2019-12-30	5802-020-1350	0.0520 ppb

* Sample result is taken from the system's CCR report.