Bromoform
Butte-Silver Bow Water Department
Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.
226
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 51 | 0 | ND |
| 2015 | ND | 51 | 0 | ND |
| 2016 | ND | 51 | 0 | ND |
| 2017 | ND | 35 | 0 | ND |
| 2018 | ND | 19 | 0 | ND |
| 2019 | ND | 19 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.5 ppb
The EWG Health Guideline of 0.5 ppb for bromoform 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 |
|---|---|---|
| 2014-02-24 | B14021519-001E | ND |
| 2014-02-24 | B14021519-002E | ND |
| 2014-02-24 | B14021519-003E | ND |
| 2014-03-12 | B14030943-001A | ND |
| 2014-03-12 | B14030943-002A | ND |
| 2014-03-12 | B14030943-003A | ND |
| 2014-03-12 | B14030943-004A | ND |
| 2014-03-12 | B14030943-005A | ND |
| 2014-03-12 | B14030943-006A | ND |
| 2014-03-12 | B14030943-007A | ND |
| 2014-03-12 | B14030943-008A | ND |
| 2014-03-12 | B14030943-009A | ND |
| 2014-03-12 | B14030943-010A | ND |
| 2014-03-12 | B14030943-011A | ND |
| 2014-03-12 | B14030943-012A | ND |
| 2014-06-09 | B14060874-001A | ND |
| 2014-06-09 | B14060874-002A | ND |
| 2014-06-09 | B14060874-003A | ND |
| 2014-06-09 | B14060874-004A | ND |
| 2014-06-09 | B14060874-005A | ND |
| 2014-06-09 | B14060874-006A | ND |
| 2014-06-09 | B14060874-007A | ND |
| 2014-06-09 | B14060874-008A | ND |
| 2014-06-09 | B14060874-009A | ND |
| 2014-06-09 | B14060874-010A | ND |
| 2014-06-09 | B14060874-011A | ND |
| 2014-06-09 | B14060874-012A | ND |
| 2014-09-15 | B14091399-001A | ND |
| 2014-09-15 | B14091399-002A | ND |
| 2014-09-15 | B14091399-003A | ND |
| 2014-09-15 | B14091399-004A | ND |
| 2014-09-15 | B14091399-005A | ND |
| 2014-09-15 | B14091399-006A | ND |
| 2014-09-15 | B14091399-007A | ND |
| 2014-09-15 | B14091399-008A | ND |
| 2014-09-15 | B14091399-009A | ND |
| 2014-09-15 | B14091399-010A | ND |
| 2014-09-15 | B14091399-011A | ND |
| 2014-09-15 | B14091399-012A | ND |
| 2014-12-10 | B14121049-001A | ND |
| 2014-12-10 | B14121049-002A | ND |
| 2014-12-10 | B14121049-003A | ND |
| 2014-12-10 | B14121049-004A | ND |
| 2014-12-10 | B14121049-005A | ND |
| 2014-12-10 | B14121049-006A | ND |
| 2014-12-10 | B14121049-007A | ND |
| 2014-12-10 | B14121049-008A | ND |
| 2014-12-10 | B14121049-009A | ND |
| 2014-12-10 | B14121049-010A | ND |
| 2014-12-10 | B14121049-011A | ND |
| 2014-12-10 | B14121049-012A | ND |
| 2015-02-24 | B15021845-001C | ND |
| 2015-02-24 | B15021845-002C | ND |
| 2015-02-24 | B15021845-003C | ND |
| 2015-03-09 | B15030709-001A | ND |
| 2015-03-09 | B15030709-002A | ND |
| 2015-03-09 | B15030709-003A | ND |
| 2015-03-09 | B15030709-004A | ND |
| 2015-03-09 | B15030709-005A | ND |
| 2015-03-09 | B15030709-006A | ND |
| 2015-03-09 | B15030709-007A | ND |
| 2015-03-09 | B15030709-008A | ND |
| 2015-03-09 | B15030709-009A | ND |
| 2015-03-09 | B15030709-010A | ND |
| 2015-03-09 | B15030709-011A | ND |
| 2015-03-09 | B15030709-012A | ND |
| 2015-06-08 | B15060859-001A | ND |
| 2015-06-08 | B15060859-002A | ND |
| 2015-06-08 | B15060859-003A | ND |
| 2015-06-08 | B15060859-004A | ND |
| 2015-06-08 | B15060859-005A | ND |
| 2015-06-08 | B15060859-006A | ND |
| 2015-06-08 | B15060859-007A | ND |
| 2015-06-08 | B15060859-008A | ND |
| 2015-06-08 | B15060859-009A | ND |
| 2015-06-08 | B15060859-010A | ND |
| 2015-06-08 | B15060859-011A | ND |
| 2015-06-08 | B15060859-012A | ND |
| 2015-09-14 | B15091265-001A | ND |
| 2015-09-14 | B15091265-002A | ND |
| 2015-09-14 | B15091265-003A | ND |
| 2015-09-14 | B15091265-004A | ND |
| 2015-09-14 | B15091265-005A | ND |
| 2015-09-14 | B15091265-006A | ND |
| 2015-09-14 | B15091265-007A | ND |
| 2015-09-14 | B15091265-008A | ND |
| 2015-09-14 | B15091265-009A | ND |
| 2015-09-14 | B15091265-010A | ND |
| 2015-09-14 | B15091265-011A | ND |
| 2015-09-14 | B15091265-012A | ND |
| 2015-12-09 | B15120901-001A | ND |
| 2015-12-09 | B15120901-002A | ND |
| 2015-12-09 | B15120901-003A | ND |
| 2015-12-09 | B15120901-004A | ND |
| 2015-12-09 | B15120901-005A | ND |
| 2015-12-09 | B15120901-006A | ND |
| 2015-12-09 | B15120901-007A | ND |
| 2015-12-09 | B15120901-008A | ND |
| 2015-12-09 | B15120901-009A | ND |
| 2015-12-09 | B15120901-010A | ND |
| 2015-12-09 | B15120901-011A | ND |
| 2015-12-09 | B15120901-012A | ND |
| 2016-02-22 | B16021667-001C | ND |
| 2016-02-22 | B16021667-002C | ND |
| 2016-02-22 | B16021667-003C | ND |
| 2016-03-09 | B16031005-001A | ND |
| 2016-03-09 | B16031005-002A | ND |
| 2016-03-09 | B16031005-003A | ND |
| 2016-03-09 | B16031005-004A | ND |
| 2016-03-09 | B16031005-005A | ND |
| 2016-03-09 | B16031005-006A | ND |
| 2016-03-09 | B16031005-007A | ND |
| 2016-03-09 | B16031005-008A | ND |
| 2016-03-09 | B16031005-009A | ND |
| 2016-03-09 | B16031005-010A | ND |
| 2016-03-09 | B16031005-011A | ND |
| 2016-03-09 | B16031005-012A | ND |
| 2016-06-07 | B16060715-001A | ND |
| 2016-06-07 | B16060715-002A | ND |
| 2016-06-07 | B16060715-003A | ND |
| 2016-06-07 | B16060715-004A | ND |
| 2016-06-07 | B16060715-005A | ND |
| 2016-06-07 | B16060715-006A | ND |
| 2016-06-07 | B16060715-007A | ND |
| 2016-06-07 | B16060715-008A | ND |
| 2016-06-07 | B16060715-009A | ND |
| 2016-06-07 | B16060715-010A | ND |
| 2016-06-07 | B16060715-011A | ND |
| 2016-06-07 | B16060715-012A | ND |
| 2016-09-08 | B16090760-001A | ND |
| 2016-09-08 | B16090760-002A | ND |
| 2016-09-08 | B16090760-003A | ND |
| 2016-09-08 | B16090760-004A | ND |
| 2016-09-08 | B16090760-005A | ND |
| 2016-09-08 | B16090760-006A | ND |
| 2016-09-08 | B16090760-007A | ND |
| 2016-09-08 | B16090760-008A | ND |
| 2016-09-08 | B16090760-009A | ND |
| 2016-09-08 | B16090760-010A | ND |
| 2016-09-08 | B16090760-011A | ND |
| 2016-09-08 | B16090760-012A | ND |
| 2016-12-12 | B16120906-001A | ND |
| 2016-12-12 | B16120906-002A | ND |
| 2016-12-12 | B16120906-003A | ND |
| 2016-12-12 | B16120906-004A | ND |
| 2016-12-12 | B16120906-005A | ND |
| 2016-12-12 | B16120906-006A | ND |
| 2016-12-12 | B16120906-007A | ND |
| 2016-12-12 | B16120906-008A | ND |
| 2016-12-12 | B16120906-009A | ND |
| 2016-12-12 | B16120906-010A | ND |
| 2016-12-12 | B16120906-011A | ND |
| 2016-12-12 | B16120906-012A | ND |
| 2017-03-13 | B17030964-001A | ND |
| 2017-03-13 | B17030964-002A | ND |
| 2017-03-13 | B17030964-003A | ND |
| 2017-03-13 | B17030964-004A | ND |
| 2017-03-13 | B17030964-005A | ND |
| 2017-03-13 | B17030964-006A | ND |
| 2017-03-13 | B17030964-007A | ND |
| 2017-03-13 | B17030964-008A | ND |
| 2017-03-13 | B17030964-009A | ND |
| 2017-03-13 | B17030964-010A | ND |
| 2017-03-13 | B17030964-011A | ND |
| 2017-03-13 | B17030964-012A | ND |
| 2017-06-13 | B17061376-001B | ND |
| 2017-06-13 | B17061376-002B | ND |
| 2017-06-13 | B17061376-003B | ND |
| 2017-06-13 | B17061376-004B | ND |
| 2017-06-13 | B17061376-005B | ND |
| 2017-06-13 | B17061376-006B | ND |
| 2017-06-13 | B17061376-007B | ND |
| 2017-06-13 | B17061376-008B | ND |
| 2017-06-13 | B17061376-009B | ND |
| 2017-06-13 | B17061376-010B | ND |
| 2017-06-13 | B17061376-011B | ND |
| 2017-06-13 | B17061376-012B | ND |
| 2017-06-20 | B17061971-001E | ND |
| 2017-06-20 | B17061971-002E | ND |
| 2017-06-20 | B17061971-003E | ND |
| 2017-09-13 | B17091212-001A | ND |
| 2017-09-13 | B17091212-002A | ND |
| 2017-09-13 | B17091212-003A | ND |
| 2017-09-13 | B17091212-004A | ND |
| 2017-12-13 | B17121307-001A | ND |
| 2017-12-13 | B17121307-002A | ND |
| 2017-12-13 | B17121307-003A | ND |
| 2017-12-13 | B17121307-004A | ND |
| 2018-03-13 | B18031136-001C | ND |
| 2018-03-13 | B18031136-002C | ND |
| 2018-03-13 | B18031136-003C | ND |
| 2018-03-14 | B18031225-001A | ND |
| 2018-03-14 | B18031225-002A | ND |
| 2018-03-14 | B18031225-003A | ND |
| 2018-03-14 | B18031225-004A | ND |
| 2018-06-11 | B18061054-001A | ND |
| 2018-06-11 | B18061054-002A | ND |
| 2018-06-11 | B18061054-003A | ND |
| 2018-06-11 | B18061054-004A | ND |
| 2018-09-11 | B18090899-001B | ND |
| 2018-09-11 | B18090899-002B | ND |
| 2018-09-11 | B18090899-003B | ND |
| 2018-09-11 | B18090899-004B | ND |
| 2018-12-12 | B18121075-001B | ND |
| 2018-12-12 | B18121075-002B | ND |
| 2018-12-12 | B18121075-003B | ND |
| 2018-12-12 | B18121075-004B | ND |
| 2019-03-13 | B19031024-001B | ND |
| 2019-03-13 | B19031024-002B | ND |
| 2019-03-13 | B19031024-003B | ND |
| 2019-03-13 | B19031024-004B | ND |
| 2019-03-25 | B19032022-001C | ND |
| 2019-03-25 | B19032022-002C | ND |
| 2019-03-25 | B19032022-003C | ND |
| 2019-06-12 | B19061217-001B | ND |
| 2019-06-12 | B19061217-002B | ND |
| 2019-06-12 | B19061217-003B | ND |
| 2019-06-12 | B19061217-004B | ND |
| 2019-09-11 | B19091090-001B | ND |
| 2019-09-11 | B19091090-002B | ND |
| 2019-09-11 | B19091090-003B | ND |
| 2019-09-11 | B19091090-004B | ND |
| 2019-12-11 | B19121117-001B | ND |
| 2019-12-11 | B19121117-002B | ND |
| 2019-12-11 | B19121117-003B | ND |
| 2019-12-11 | B19121117-004B | ND |