Bromodichloromethane
Jackson County PWSD1
Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.
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 | N/A | 0 | 0 | N/A |
| 2014 | 0.628 ppb | 16 | 12 | ND - 1.02 ppb |
| 2015 | 0.872 ppb | 10 | 10 | 0.540 ppb - 1.54 ppb |
| 2016 | 0.874 ppb | 8 | 8 | 0.600 ppb - 1.33 ppb |
| 2017 | 0.913 ppb | 8 | 8 | 0.670 ppb - 1.20 ppb |
| 2018 | 0.934 ppb | 8 | 8 | 0.640 ppb - 1.52 ppb |
| 2019 | 0.858 ppb | 6 | 6 | 0.560 ppb - 1.18 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.06 ppb
The EWG Health Guideline of 0.06 ppb for bromodichloromethane was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-15 | AC16764 | ND |
| 2014-01-15 | AC16765 | ND |
| 2014-01-15 | AC16766 | ND |
| 2014-01-15 | AC16763 | ND |
| 2014-04-22 | AC21670 | 0.840 ppb |
| 2014-04-22 | AC21671 | 0.780 ppb |
| 2014-04-22 | AC21672 | 0.800 ppb |
| 2014-04-22 | AC21673 | 0.840 ppb |
| 2014-07-28 | AC30704 | 1.02 ppb |
| 2014-07-28 | AC30706 | 1.02 ppb |
| 2014-07-28 | AC30705 | 0.970 ppb |
| 2014-07-28 | AC30703 | 1.02 ppb |
| 2014-10-28 | AC37690 | 0.700 ppb |
| 2014-10-28 | AC37691 | 0.690 ppb |
| 2014-10-28 | AC37692 | 0.570 ppb |
| 2014-10-28 | AC37693 | 0.800 ppb |
| 2015-01-26 | AC40416 | 0.540 ppb |
| 2015-01-26 | AC40415 | 0.580 ppb |
| 2015-01-26 | AC40417 | 0.570 ppb |
| 2015-01-26 | AC40414 | 0.550 ppb |
| 2015-04-21 | AC45066 | 0.750 ppb |
| 2015-04-21 | AC45067 | 0.840 ppb |
| 2015-07-20 | AC54318 | 1.54 ppb |
| 2015-07-20 | AC54319 | 1.35 ppb |
| 2015-10-19 | AC61232 | 1.02 ppb |
| 2015-10-19 | AC61231 | 0.980 ppb |
| 2016-01-20 | AC65039 | 0.630 ppb |
| 2016-01-20 | AC65038 | 0.600 ppb |
| 2016-04-19 | AC69397 | 0.770 ppb |
| 2016-04-19 | AC69398 | 0.740 ppb |
| 2016-07-14 | AC79716 | 1.33 ppb |
| 2016-07-14 | AC79717 | 1.28 ppb |
| 2016-10-24 | AC86306 | 0.820 ppb |
| 2016-10-24 | AC86305 | 0.820 ppb |
| 2017-01-24 | AC89116 | 0.970 ppb |
| 2017-01-24 | AC89117 | 0.930 ppb |
| 2017-04-12 | AC94476 | 0.800 ppb |
| 2017-04-12 | AC94475 | 0.810 ppb |
| 2017-07-14 | AD01429 | 1.15 ppb |
| 2017-07-14 | AD01428 | 1.20 ppb |
| 2017-10-18 | AD07911 | 0.670 ppb |
| 2017-10-18 | AD07912 | 0.770 ppb |
| 2018-01-22 | AD11353 | 0.640 ppb |
| 2018-01-22 | AD11354 | 0.660 ppb |
| 2018-04-18 | AD18026 | 0.780 ppb |
| 2018-04-18 | AD18027 | 0.830 ppb |
| 2018-07-20 | AD29204 | 1.52 ppb |
| 2018-07-20 | AD29205 | 1.44 ppb |
| 2018-10-22 | AD34424 | 0.750 ppb |
| 2018-10-22 | AD34425 | 0.850 ppb |
| 2019-01-17 | AD37735 | 0.810 ppb |
| 2019-01-17 | AD37736 | 0.560 ppb |
| 2019-04-15 | AD46155 | 0.760 ppb |
| 2019-04-15 | AD46156 | 0.690 ppb |
| 2019-07-15 | AD51822 | 1.18 ppb |
| 2019-07-15 | AD51823 | 1.15 ppb |