Bromochloromethane
Calleguas Municipal Water District
Bromochloromethane is a tap water disinfection byproduct; it is also used as an intermediate in chemical manufacturing and as a fire extinguishing agent. Disinfection byproducts in drinking water increase the risk of cancer.
47
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 1.81 ppb | 7 | 5 | ND - 3.50 ppb |
| 2015 | 0.111 ppb | 9 | 1 | ND - 1.000 ppb |
| 2016 | 1.01 ppb | 8 | 6 | ND - 1.90 ppb |
| 2017 | 3.03 ppb | 8 | 4 | ND - 8.90 ppb |
| 2018 | 0.563 ppb | 8 | 3 | ND - 1.60 ppb |
| 2019 | 0.614 ppb | 7 | 4 | ND - 1.50 ppb |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-10 | 5867-010-1130 | 3.10 ppb |
| 2014-01-10 | 5867-006-0945 | 1.60 ppb |
| 2014-03-21 | 5867-007-1125 | 2.40 ppb |
| 2014-04-11 | 5867-009-1010 | 3.50 ppb |
| 2014-04-18 | 5867-011-1030 | 2.10 ppb |
| 2014-05-07 | 5867-004-0915 | ND |
| 2014-11-18 | 5867-008-1315 | ND |
| 2015-02-02 | 5867-004-0815 | ND |
| 2015-02-19 | 5867-017-1415 | 1.000 ppb |
| 2015-02-26 | 5867-004-1045 | ND |
| 2015-10-21 | 5867-014-1020 | ND |
| 2015-10-27 | 5867-016-1130 | ND |
| 2015-10-27 | 5867-015-1300 | ND |
| 2015-10-27 | 5867-012-1030 | ND |
| 2015-11-04 | 5867-004-1340 | ND |
| 2015-11-05 | 5867-013-1140 | ND |
| 2016-04-04 | 5867-004-0840 | ND |
| 2016-04-05 | 5867-023-1000 | 1.90 ppb |
| 2016-04-05 | 5867-022-0930 | 1.50 ppb |
| 2016-04-06 | 5867-021-1150 | 1.000 ppb |
| 2016-04-06 | 5867-020-1305 | 1.30 ppb |
| 2016-04-06 | 5867-019-1030 | 0.800 ppb |
| 2016-04-06 | 5867-018-1100 | 1.60 ppb |
| 2016-11-07 | 5867-004-0745 | ND |
| 2017-03-21 | 5867-004-1040 | ND |
| 2017-04-17 | 5867-009-1245 | 3.20 ppb |
| 2017-04-17 | 5867-008-1005 | 8.00 ppb |
| 2017-04-18 | 5867-006-1130 | 8.90 ppb |
| 2017-04-19 | 5867-011-1050 | 4.10 ppb |
| 2017-10-16 | 5867-004-0855 | ND |
| 2017-11-06 | 5867-007-1015 | ND |
| 2017-11-06 | 5867-010-1120 | ND |
| 2018-02-13 | 5867-016-0945 | ND |
| 2018-02-13 | 5867-015-1050 | ND |
| 2018-02-26 | 5867-004-0915 | ND |
| 2018-03-07 | 5867-013-1320 | 1.50 ppb |
| 2018-03-08 | 5867-014-1330 | 1.40 ppb |
| 2018-03-08 | 5867-012-1000 | 1.60 ppb |
| 2018-04-30 | 5867-017-1030 | ND |
| 2018-11-05 | 5867-004-0820 | ND |
| 2019-01-29 | 5867-004-0930 | ND |
| 2019-02-04 | 5867-018-0945 | ND |
| 2019-02-05 | 5867-022-1020 | 0.800 ppb |
| 2019-02-05 | 5867-023-0945 | 1.50 ppb |
| 2019-02-07 | 5867-020-0840 | 0.900 ppb |
| 2019-02-19 | 5867-019-1100 | 1.10 ppb |
| 2019-11-04 | 5867-004-0800 | ND |