1,2-Dibromo-3-chloropropane (DBCP)
City of Tulare
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | 0.0122 ppb | 26 | 9 | ND - 0.0740 ppb |
2015 | 0.0143 ppb | 32 | 13 | ND - 0.0580 ppb |
2016 | 0.0138 ppb | 26 | 11 | ND - 0.110 ppb |
2017 | 0.00741 ppb | 29 | 11 | ND - 0.0270 ppb |
2018 | 0.00663 ppb | 24 | 8 | ND - 0.0240 ppb |
2019 | 0.00772 ppb | 36 | 15 | ND - 0.0520 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 |
---|---|---|
2014-03-19 | 5810-019-0827 | 0.0350 ppb |
2014-03-19 | 5810-021-0800 | 0.0270 ppb |
2014-03-19 | 5810-022-0845 | ND |
2014-03-19 | 5810-023-0930 | ND |
2014-06-05 | 5810-019-0900 | 0.0620 ppb |
2014-06-05 | 5810-021-0900 | 0.0330 ppb |
2014-06-05 | 5810-022-0705 | 0.0130 ppb |
2014-06-05 | 5810-025-1035 | ND |
2014-06-18 | 5810-008-0700 | ND |
2014-06-18 | 5810-011-0730 | ND |
2014-06-18 | 5810-012-0800 | 0.0190 ppb |
2014-06-18 | 5810-013-0820 | ND |
2014-08-20 | 5810-012-0645 | 0.0220 ppb |
2014-08-28 | 5810-001-0840 | ND |
2014-08-28 | 5810-002-0730 | ND |
2014-08-28 | 5810-014-0645 | ND |
2014-08-28 | 5810-015-0755 | ND |
2014-08-28 | 5810-017-0715 | ND |
2014-08-28 | 5810-047-0845 | ND |
2014-12-09 | 5810-019-0828 | 0.0740 ppb |
2014-12-09 | 5810-021-0815 | 0.0320 ppb |
2014-12-09 | 5810-022-1000 | ND |
2014-12-10 | 5810-025-1025 | ND |
2014-12-10 | 5810-026-1120 | ND |
2014-12-10 | 5810-033-0800 | ND |
2014-12-10 | 5810-048-0915 | ND |
2015-03-05 | 5810-019-0947 | 0.0580 ppb |
2015-03-05 | 5810-021-0935 | 0.0390 ppb |
2015-03-05 | 5810-022-0825 | ND |
2015-06-04 | 5810-019-0845 | 0.0500 ppb |
2015-06-04 | 5810-021-0815 | 0.0290 ppb |
2015-06-04 | 5810-022-0905 | ND |
2015-06-04 | 5810-025-0900 | ND |
2015-06-26 | 5810-001-1130 | ND |
2015-06-26 | 5810-002-0740 | ND |
2015-06-26 | 5810-008-0845 | ND |
2015-06-26 | 5810-012-1015 | 0.0260 ppb |
2015-09-15 | 5810-012-1005 | 0.0270 ppb |
2015-09-15 | 5810-019-0855 | 0.0360 ppb |
2015-09-15 | 5810-021-0825 | 0.0220 ppb |
2015-09-15 | 5810-022-0942 | ND |
2015-09-17 | 5810-012-0830 | 0.0340 ppb |
2015-09-17 | 5810-013-0715 | ND |
2015-09-17 | 5810-015-0630 | ND |
2015-09-17 | 5810-017-0940 | ND |
2015-09-17 | 5810-025-1115 | ND |
2015-09-17 | 5810-048-1020 | ND |
2015-12-09 | 5810-012-0910 | 0.0340 ppb |
2015-12-09 | 5810-019-0830 | 0.0520 ppb |
2015-12-09 | 5810-021-0845 | 0.0280 ppb |
2015-12-09 | 5810-022-1040 | ND |
2015-12-15 | 5810-026-0850 | ND |
2015-12-15 | 5810-047-0950 | ND |
2015-12-15 | 5810-051-0820 | ND |
2015-12-15 | 5810-052-0815 | ND |
2015-12-15 | 5810-055-0855 | 0.0230 ppb |
2015-12-15 | 5810-056-0830 | ND |
2015-12-15 | 5810-057-0905 | ND |
2016-03-15 | 5810-019-0925 | 0.0370 ppb |
2016-03-15 | 5810-021-0955 | 0.0220 ppb |
2016-03-15 | 5810-026-0855 | ND |
2016-06-16 | 5810-014-0840 | ND |
2016-06-16 | 5810-019-0750 | 0.0320 ppb |
2016-06-16 | 5810-021-0840 | 0.0260 ppb |
2016-06-16 | 5810-022-0840 | ND |
2016-06-16 | 5810-069-0705 | ND |
2016-06-24 | 5810-025-0845 | ND |
2016-07-11 | 5810-061-1110 | ND |
2016-07-14 | 5810-061-0700 | ND |
2016-08-25 | 5810-011-0700 | ND |
2016-09-15 | 5810-012-0705 | 0.0210 ppb |
2016-09-15 | 5810-019-0845 | 0.0230 ppb |
2016-09-15 | 5810-021-0800 | 0.0210 ppb |
2016-09-15 | 5810-022-0730 | ND |
2016-09-15 | 5810-026-0735 | ND |
2016-09-15 | 5810-047-1045 | ND |
2016-09-15 | 5810-061-0955 | ND |
2016-09-15 | 5810-065-0748 | ND |
2016-09-15 | 5810-069-0850 | 0.0150 ppb |
2016-12-20 | 5810-019-0935 | 0.0320 ppb |
2016-12-20 | 5810-021-0925 | 0.110 ppb |
2016-12-20 | 5810-022-1150 | ND |
2016-12-20 | 5810-033-1040 | ND |
2016-12-20 | 5810-067-0730 | 0.0200 ppb |
2017-03-09 | 5810-012-0815 | 0.0270 ppb |
2017-03-09 | 5810-019-1030 | 0.0210 ppb |
2017-03-09 | 5810-021-0955 | 0.0250 ppb |
2017-03-09 | 5810-022-0835 | ND |
2017-05-18 | 5810-073-1200 | ND |
2017-06-08 | 5810-012-1140 | 0.0160 ppb |
2017-06-08 | 5810-019-1020 | 0.0170 ppb |
2017-06-08 | 5810-021-1155 | 0.0230 ppb |
2017-06-22 | 5810-048-0810 | ND |
2017-06-22 | 5810-051-0735 | ND |
2017-06-22 | 5810-052-0700 | ND |
2017-06-22 | 5810-055-0800 | 0.0120 ppb |
2017-06-22 | 5810-056-0730 | ND |
2017-06-22 | 5810-057-0800 | ND |
2017-09-07 | 5810-012-0715 | 0.0140 ppb |
2017-09-07 | 5810-021-0845 | 0.0190 ppb |
2017-09-07 | 5810-022-0805 | ND |
2017-09-21 | 5810-002-0810 | ND |
2017-09-21 | 5810-008-0320 | ND |
2017-09-21 | 5810-011-0850 | ND |
2017-09-21 | 5810-061-0855 | ND |
2017-09-21 | 5810-065-0715 | ND |
2017-09-21 | 5810-069-0815 | ND |
2017-12-07 | 5810-021-0935 | 0.0180 ppb |
2017-12-07 | 5810-022-1015 | ND |
2017-12-21 | 5810-012-0930 | 0.0230 ppb |
2017-12-21 | 5810-013-0850 | ND |
2017-12-21 | 5810-015-0855 | ND |
2017-12-21 | 5810-017-0815 | ND |
2018-03-08 | 5810-012-1155 | 0.0240 ppb |
2018-03-08 | 5810-021-1100 | 0.0210 ppb |
2018-06-07 | 5810-021-1025 | 0.0220 ppb |
2018-06-07 | 5810-025-1045 | ND |
2018-06-07 | 5810-026-0940 | ND |
2018-06-07 | 5810-051-0835 | ND |
2018-06-07 | 5810-055-0930 | 0.0120 ppb |
2018-06-25 | 5810-073-1110 | ND |
2018-09-06 | 5810-021-1000 | 0.0200 ppb |
2018-09-20 | 5810-001-0930 | ND |
2018-09-20 | 5810-033-0820 | ND |
2018-09-20 | 5810-047-0830 | ND |
2018-09-20 | 5810-048-0830 | ND |
2018-09-20 | 5810-052-0715 | ND |
2018-09-20 | 5810-073-0730 | ND |
2018-12-04 | 5810-012-0910 | 0.0220 ppb |
2018-12-05 | 5810-069-0800 | ND |
2018-12-20 | 5810-017-1020 | ND |
2018-12-20 | 5810-056-1220 | ND |
2018-12-20 | 5810-057-1300 | 0.0190 ppb |
2018-12-20 | 5810-061-0855 | ND |
2018-12-20 | 5810-065-0845 | ND |
2018-12-20 | 5810-069-1015 | 0.0190 ppb |
2018-12-20 | 5810-073-0812 | ND |
2019-03-07 | 5810-012-1005 | 0.0220 ppb |
2019-03-07 | 5810-021-1140 | 0.0520 ppb |
2019-03-07 | 5810-069-1105 | 0.0120 ppb |
2019-03-21 | 5810-014-0830 | ND |
2019-03-21 | 5810-015-0930 | ND |
2019-03-21 | 5810-073-0930 | ND |
2019-03-22 | 5810-075-1130 | ND |
2019-06-06 | 5810-012-0925 | 0.0170 ppb |
2019-06-06 | 5810-021-0955 | 0.0250 ppb |
2019-06-06 | 5810-069-1145 | 0.0110 ppb |
2019-06-20 | 5810-017-0515 | ND |
2019-06-20 | 5810-048-0700 | ND |
2019-06-20 | 5810-051-0630 | ND |
2019-06-20 | 5810-055-0740 | 0.0130 ppb |
2019-06-20 | 5810-056-0825 | ND |
2019-06-20 | 5810-073-0720 | ND |
2019-06-20 | 5810-075-0645 | ND |
2019-07-19 | 5810-077-1315 | ND |
2019-09-05 | 5810-012-1055 | 0.01000 ppb |
2019-09-05 | 5810-021-1015 | 0.0220 ppb |
2019-09-05 | 5810-069-1200 | 0.0110 ppb |
2019-09-17 | 5810-011-0900 | ND |
2019-09-17 | 5810-012-0945 | 0.0180 ppb |
2019-09-17 | 5810-061-0805 | ND |
2019-09-17 | 5810-065-0715 | ND |
2019-09-17 | 5810-069-0830 | 0.0120 ppb |
2019-09-17 | 5810-073-0900 | ND |
2019-09-17 | 5810-075-0805 | ND |
2019-09-24 | 5810-077-0700 | ND |
2019-12-05 | 5810-012-0845 | 0.0180 ppb |
2019-12-05 | 5810-021-0935 | 0.0200 ppb |
2019-12-05 | 5810-069-1025 | 0.0150 ppb |
2019-12-19 | 5810-013-0930 | ND |
2019-12-19 | 5810-073-0845 | ND |
2019-12-19 | 5810-075-0945 | ND |
2019-12-19 | 5810-077-0815 | ND |