Bromodichloromethane
City of Billings
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | 7.53 ppb | 37 | 37 | 4.20 ppb - 10.4 ppb |
2015 | 7.56 ppb | 36 | 36 | 2.50 ppb - 13.0 ppb |
2016 | 7.40 ppb | 36 | 36 | 2.10 ppb - 14.0 ppb |
2017 | 8.15 ppb | 36 | 36 | 4.10 ppb - 12.0 ppb |
2018 | 8.20 ppb | 37 | 36 | ND - 12.0 ppb |
2019 | 8.87 ppb | 37 | 36 | ND - 12.0 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 |
---|---|---|
2014-02-10 | 10257526002 | 8.50 ppb |
2014-02-10 | 10257526003 | 7.20 ppb |
2014-02-10 | 10257526004 | 7.30 ppb |
2014-02-10 | 10257526006 | 8.70 ppb |
2014-02-10 | B14020492-001F | 5.00 ppb |
2014-02-11 | 10257526005 | 9.10 ppb |
2014-02-11 | 10257526007 | 8.50 ppb |
2014-02-12 | 10257526001 | 10.4 ppb |
2014-02-12 | 10257526008 | 10.2 ppb |
2014-05-12 | 10267141003 | 5.40 ppb |
2014-05-12 | 10267141004 | 6.80 ppb |
2014-05-12 | 10267141006 | 4.90 ppb |
2014-05-12 | B14051004-001A | 4.30 ppb |
2014-05-13 | 10267141002 | 6.90 ppb |
2014-05-13 | 10267141005 | 7.20 ppb |
2014-05-13 | 10267141007 | 5.10 ppb |
2014-05-14 | 10267141001 | 5.40 ppb |
2014-05-14 | 10267141008 | 5.30 ppb |
2014-08-11 | 10277481003 | 8.40 ppb |
2014-08-11 | 10277481004 | 6.80 ppb |
2014-08-11 | B14081054-001D | 6.20 ppb |
2014-08-12 | 10277481005 | 8.80 ppb |
2014-08-12 | 10277481006 | 8.20 ppb |
2014-08-12 | 10277481007 | 7.40 ppb |
2014-08-13 | 10277481001 | 8.20 ppb |
2014-08-13 | 10277481002 | 9.50 ppb |
2014-08-13 | 10277481008 | 8.10 ppb |
2014-09-02 | B14090072-001A | 6.80 ppb |
2014-11-12 | B14110966-001A | 7.60 ppb |
2014-11-12 | B14110966-002A | 9.60 ppb |
2014-11-12 | B14110966-003A | 9.80 ppb |
2014-11-12 | B14110966-004A | 8.80 ppb |
2014-11-12 | B14110966-005A | 8.90 ppb |
2014-11-12 | B14110966-006A | 9.60 ppb |
2014-11-12 | B14110966-007A | 4.20 ppb |
2014-11-12 | B14110966-008A | 6.00 ppb |
2014-11-12 | B14110966-009A | 9.60 ppb |
2015-02-09 | B15020974-001D | 5.00 ppb |
2015-02-09 | B15020974-002A | 7.60 ppb |
2015-02-09 | B15020974-003A | 7.70 ppb |
2015-02-09 | B15020974-004A | 5.30 ppb |
2015-02-10 | B15020974-005A | 6.60 ppb |
2015-02-10 | B15020974-006A | 8.50 ppb |
2015-02-10 | B15020974-007A | 8.00 ppb |
2015-02-11 | B15020974-008A | 6.90 ppb |
2015-02-11 | B15020974-009A | 8.40 ppb |
2015-05-11 | B15051144-003A | 3.60 ppb |
2015-05-11 | B15051144-004A | 2.50 ppb |
2015-05-11 | B15051144-006A | 3.10 ppb |
2015-05-11 | B15051144-009A | 2.90 ppb |
2015-05-12 | B15051144-002A | 5.60 ppb |
2015-05-12 | B15051144-005A | 5.50 ppb |
2015-05-12 | B15051144-007A | 3.80 ppb |
2015-05-13 | B15051144-001A | 3.70 ppb |
2015-05-13 | B15051144-008A | 3.70 ppb |
2015-08-10 | B15080796-002A | 8.40 ppb |
2015-08-10 | B15080796-004A | 13.0 ppb |
2015-08-10 | B15080796-005A | 13.0 ppb |
2015-08-10 | B15080796-006A | 9.50 ppb |
2015-08-10 | B15080796-007A | 10.00 ppb |
2015-08-10 | B15080796-008A | 12.0 ppb |
2015-08-10 | B15080796-009A | 12.0 ppb |
2015-08-10 | B15080796-010A | 11.0 ppb |
2015-08-11 | B15080910-001A | 13.0 ppb |
2015-11-09 | B15110678-001A | 5.00 ppb |
2015-11-09 | B15110678-002A | 9.40 ppb |
2015-11-09 | B15110678-003A | 10.00 ppb |
2015-11-09 | B15110678-004A | 5.80 ppb |
2015-11-09 | B15110678-005A | 4.30 ppb |
2015-11-09 | B15110678-006A | 10.00 ppb |
2015-11-09 | B15110678-007A | 8.90 ppb |
2015-11-09 | B15110678-008A | 7.50 ppb |
2015-11-09 | B15110678-009A | 11.0 ppb |
2016-02-08 | B16020890-001D | 4.70 ppb |
2016-02-08 | B16020890-004A | 5.60 ppb |
2016-02-08 | B16020890-005A | 3.80 ppb |
2016-02-08 | B16020890-007A | 7.60 ppb |
2016-02-09 | B16020890-003A | 8.50 ppb |
2016-02-09 | B16020890-006A | 8.30 ppb |
2016-02-09 | B16020890-008A | 7.30 ppb |
2016-02-10 | B16020890-002A | 8.00 ppb |
2016-02-10 | B16020890-009A | 9.50 ppb |
2016-05-09 | B16051069-005A | 3.90 ppb |
2016-05-10 | B16051069-001A | 2.10 ppb |
2016-05-10 | B16051069-003A | 7.00 ppb |
2016-05-11 | B16051069-002A | 3.50 ppb |
2016-05-11 | B16051069-009A | 5.20 ppb |
2016-05-26 | B16052073-001A | 3.00 ppb |
2016-05-26 | B16052073-002A | 4.00 ppb |
2016-05-26 | B16052073-003A | 3.10 ppb |
2016-05-26 | B16052073-004A | 3.40 ppb |
2016-08-08 | B16081057-001A | 8.50 ppb |
2016-08-08 | B16081057-002A | 9.80 ppb |
2016-08-08 | B16081057-003A | 13.0 ppb |
2016-08-08 | B16081057-004A | 11.0 ppb |
2016-08-09 | B16081057-005A | 14.0 ppb |
2016-08-09 | B16081057-006A | 14.0 ppb |
2016-08-09 | B16081057-007A | 11.0 ppb |
2016-08-10 | B16081057-008A | 12.0 ppb |
2016-08-10 | B16081057-009A | 13.0 ppb |
2016-11-09 | B16110820-001A | 4.80 ppb |
2016-11-09 | B16110820-002A | 6.30 ppb |
2016-11-09 | B16110820-003A | 11.0 ppb |
2016-11-09 | B16110820-004A | 5.40 ppb |
2016-11-09 | B16110820-005A | 4.00 ppb |
2016-11-09 | B16110820-006A | 11.0 ppb |
2016-11-09 | B16110820-007A | 6.20 ppb |
2016-11-09 | B16110820-008A | 6.80 ppb |
2016-11-09 | B16110820-009A | 6.20 ppb |
2017-02-06 | B17020497-005A | 5.00 ppb |
2017-02-06 | B17020497-006A | 4.80 ppb |
2017-02-06 | B17020497-008A | 5.90 ppb |
2017-02-07 | B17020497-004A | 7.20 ppb |
2017-02-07 | B17020497-007A | 7.10 ppb |
2017-02-07 | B17020497-009A | 5.80 ppb |
2017-02-08 | B17020497-002D | 4.10 ppb |
2017-02-08 | B17020497-003A | 6.80 ppb |
2017-02-08 | B17020497-010A | 7.20 ppb |
2017-05-08 | B17051019-001D | 5.60 ppb |
2017-05-08 | B17051019-002A | 7.00 ppb |
2017-05-08 | B17051019-003A | 8.40 ppb |
2017-05-08 | B17051019-004A | 10.00 ppb |
2017-05-09 | B17051019-005A | 9.70 ppb |
2017-05-09 | B17051019-006A | 8.20 ppb |
2017-05-09 | B17051019-007A | 7.50 ppb |
2017-05-10 | B17051019-008A | 7.50 ppb |
2017-05-10 | B17051019-009A | 10.00 ppb |
2017-08-07 | B17081099-001D | 5.80 ppb |
2017-08-07 | B17081099-004A | 9.30 ppb |
2017-08-07 | B17081099-005A | 12.0 ppb |
2017-08-07 | B17081099-007A | 9.50 ppb |
2017-08-08 | B17081099-003A | 8.30 ppb |
2017-08-08 | B17081099-006A | 12.0 ppb |
2017-08-08 | B17081099-008A | 9.90 ppb |
2017-08-09 | B17081099-002A | 10.00 ppb |
2017-08-09 | B17081099-009A | 11.0 ppb |
2017-11-06 | B17110842-001A | 4.90 ppb |
2017-11-06 | B17110842-002A | 6.10 ppb |
2017-11-06 | B17110842-003A | 9.80 ppb |
2017-11-07 | B17110842-004A | 11.0 ppb |
2017-11-07 | B17110842-005A | 7.60 ppb |
2017-11-08 | B17110842-006A | 9.80 ppb |
2017-11-08 | B17110842-007A | 8.80 ppb |
2017-11-08 | B17110842-008A | 9.90 ppb |
2017-11-09 | B17110842-009A | 10.00 ppb |
2018-02-05 | B18020545-001F | 5.00 ppb |
2018-02-05 | B18020545-004A | 8.10 ppb |
2018-02-05 | B18020545-005A | 6.20 ppb |
2018-02-06 | B18020545-006A | 10.00 ppb |
2018-02-06 | B18020545-007A | 9.80 ppb |
2018-02-06 | B18020545-008A | 6.20 ppb |
2018-02-06 | B18020545-009A | 9.50 ppb |
2018-02-07 | B18020545-010A | 8.40 ppb |
2018-02-07 | B18020545-011A | 9.20 ppb |
2018-05-07 | B18051134-001F | 5.50 ppb |
2018-05-07 | B18051134-003A | 6.10 ppb |
2018-05-07 | B18051134-004A | 7.10 ppb |
2018-05-08 | B18051134-005A | 12.0 ppb |
2018-05-08 | B18051134-006A | 8.40 ppb |
2018-05-08 | B18051134-007A | 9.10 ppb |
2018-05-08 | B18051134-008A | 9.20 ppb |
2018-05-09 | B18051134-009A | 6.00 ppb |
2018-05-09 | B18051134-010A | 6.80 ppb |
2018-05-09 | B18051134-011A | 7.20 ppb |
2018-08-06 | B18080949-001F | 7.00 ppb |
2018-08-06 | B18080949-002E | ND |
2018-08-06 | B18080949-003A | 9.00 ppb |
2018-08-06 | B18080949-004A | 8.30 ppb |
2018-08-07 | B18080949-005A | 10.00 ppb |
2018-08-07 | B18080949-006A | 9.80 ppb |
2018-08-07 | B18080949-007A | 9.10 ppb |
2018-08-08 | B18080949-008A | 8.60 ppb |
2018-08-08 | B18080949-009A | 8.40 ppb |
2018-08-08 | B18080949-010A | 8.70 ppb |
2018-11-07 | B18110767-003A | 7.60 ppb |
2018-11-07 | B18110767-004A | 9.20 ppb |
2018-11-07 | B18110767-005A | 10.00 ppb |
2018-11-07 | B18110767-006A | 10.00 ppb |
2018-11-07 | B18110767-007A | 6.00 ppb |
2018-11-08 | B18110767-008A | 11.0 ppb |
2018-11-08 | B18110767-009A | 11.0 ppb |
2018-11-08 | B18110767-010A | 10.00 ppb |
2019-02-11 | B19020608-001F | 7.20 ppb |
2019-02-11 | B19020608-002A | 11.0 ppb |
2019-02-11 | B19020608-003A | 11.0 ppb |
2019-02-11 | B19020608-004A | 8.60 ppb |
2019-02-11 | B19020608-005A | 7.60 ppb |
2019-02-11 | B19020608-006A | 11.0 ppb |
2019-02-11 | B19020608-007A | 12.0 ppb |
2019-02-11 | B19020608-008A | 11.0 ppb |
2019-02-11 | B19020608-009A | 9.70 ppb |
2019-05-13 | B19051523-001A | 6.90 ppb |
2019-05-13 | B19051523-004A | 7.10 ppb |
2019-05-13 | B19051523-009A | 9.30 ppb |
2019-05-14 | B19051523-003A | 9.60 ppb |
2019-05-14 | B19051523-006A | 10.00 ppb |
2019-05-14 | B19051523-008A | 8.70 ppb |
2019-05-15 | B19051523-002A | 8.30 ppb |
2019-05-15 | B19051523-005A | 7.40 ppb |
2019-05-15 | B19051523-007A | 8.90 ppb |
2019-08-12 | B19081432-001A | 7.20 ppb |
2019-08-12 | B19081432-004A | 8.60 ppb |
2019-08-12 | B19081432-009A | 10.00 ppb |
2019-08-13 | B19081432-003A | 11.0 ppb |
2019-08-13 | B19081432-006A | 11.0 ppb |
2019-08-13 | B19081432-008A | 10.00 ppb |
2019-08-14 | B19081432-002A | 11.0 ppb |
2019-08-14 | B19081432-005A | 9.10 ppb |
2019-08-14 | B19081432-007A | 9.10 ppb |
2019-11-13 | B19111116-001A | 4.70 ppb |
2019-11-13 | B19111116-002A | ND |
2019-11-13 | B19111116-003A | 9.00 ppb |
2019-11-13 | B19111116-004A | 11.0 ppb |
2019-11-13 | B19111116-005A | 5.60 ppb |
2019-11-13 | B19111116-006A | 8.30 ppb |
2019-11-13 | B19111116-007A | 10.00 ppb |
2019-11-13 | B19111116-008A | 9.00 ppb |
2019-11-13 | B19111116-009A | 9.40 ppb |
2019-11-13 | B19111116-010A | 8.80 ppb |