Bromochloroacetic acid
City of Rock Springs
Bromochloroacetic acid is formed when chlorine or other disinfectants are used to treat drinking water. Bromochloroacetic acid and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy.
44
Samples
0
Samples exceeding legal limit (MCL)
42
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 1.53 ppb | 12 | 11 | ND - 3.20 ppb |
| 2015 | 1.90 ppb | 8 | 8 | 0.580 ppb - 3.10 ppb |
| 2016 | 1.90 ppb | 8 | 8 | 0.790 ppb - 3.30 ppb |
| 2017 | 1.97 ppb | 8 | 7 | ND - 2.90 ppb |
| 2018 | 2.07 ppb | 8 | 8 | 0.750 ppb - 3.80 ppb |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.02 ppb
The EWG Health Guideline of 0.02 ppb for bromochloroacetic acid was defined in a peer-reviewed scientific study by EWG and represents a on-in-a-million lifetime cancer risk level. This health guideline protects against cancer.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-05-13 | C14050407-001B | 2.30 ppb |
| 2014-05-13 | C14050407-002B | 1.90 ppb |
| 2014-05-13 | C14050407-003B | 2.50 ppb |
| 2014-05-13 | C14050407-004B | 2.00 ppb |
| 2014-08-14 | C14080647-001B | 0.750 ppb |
| 2014-08-14 | C14080647-002B | 0.670 ppb |
| 2014-08-14 | C14080647-003B | 0.820 ppb |
| 2014-08-14 | C14080647-004B | 0.920 ppb |
| 2014-11-03 | C14110081-002B | 1.20 ppb |
| 2014-11-03 | C14110081-003B | 3.20 ppb |
| 2014-11-03 | C14110081-004B | ND |
| 2014-11-03 | C14110081-001B | 2.10 ppb |
| 2015-03-24 | C15030778-002B | 2.50 ppb |
| 2015-03-24 | C15030778-001B | 2.80 ppb |
| 2015-05-11 | C15050390-001B | 3.10 ppb |
| 2015-05-11 | C15050390-002B | 3.00 ppb |
| 2015-08-11 | C15080425-002B | 0.880 ppb |
| 2015-08-11 | C15080425-001B | 1.30 ppb |
| 2015-11-05 | C15110247-002B | 0.580 ppb |
| 2015-11-05 | C15110247-001B | 1.000 ppb |
| 2016-02-08 | C16020212-002B | 2.00 ppb |
| 2016-02-08 | C16020212-001B | 2.40 ppb |
| 2016-05-10 | C16050366-001B | 3.30 ppb |
| 2016-05-10 | C16050366-002B | 3.10 ppb |
| 2016-08-09 | C16080435-001B | 1.10 ppb |
| 2016-08-09 | C16080435-002B | 0.810 ppb |
| 2016-11-15 | C16110619-001B | 1.70 ppb |
| 2016-11-15 | C16110619-002B | 0.790 ppb |
| 2017-02-20 | C17020561-001B | 2.90 ppb |
| 2017-02-20 | C17020561-002B | 2.60 ppb |
| 2017-05-15 | C17050530-001B | 2.80 ppb |
| 2017-05-15 | C17050530-002B | 2.60 ppb |
| 2017-08-14 | C17080591-001B | 1.80 ppb |
| 2017-08-14 | C17080591-002B | ND |
| 2017-11-20 | C17110674-002B | 0.560 ppb |
| 2017-11-20 | C17110674-001B | 2.50 ppb |
| 2018-02-19 | C18020474-001B | 2.40 ppb |
| 2018-02-19 | C18020474-002B | 2.50 ppb |
| 2018-05-15 | C18050619-001B | 3.40 ppb |
| 2018-05-15 | C18050619-002B | 3.80 ppb |
| 2018-08-07 | C18080267-001B | 1.90 ppb |
| 2018-08-07 | C18080267-002B | 0.750 ppb |
| 2018-11-06 | C18110204-001B | 0.910 ppb |
| 2018-11-06 | C18110204-002B | 0.900 ppb |