Bromochloroacetic acid
City of Evanston
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | 2.24 ppb | 12 | 11 | ND - 5.60 ppb |
2015 | 0.856 ppb | 8 | 7 | ND - 1.30 ppb |
2016 | N/A | 0 | 0 | N/A |
2017 | 3.68 ppb | 12 | 12 | 2.50 ppb - 5.20 ppb |
2018 | 4.01 ppb | 16 | 16 | 1.60 ppb - 6.70 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 |
---|---|---|
2014-06-02 | C14060130-004B | 4.70 ppb |
2014-06-02 | C14060130-003B | 5.10 ppb |
2014-06-02 | C14060130-001B | 4.90 ppb |
2014-06-02 | C14060130-002B | 5.60 ppb |
2014-09-03 | C14090231-001B | 0.720 ppb |
2014-09-03 | C14090231-002B | 0.920 ppb |
2014-09-03 | C14090231-003B | 0.790 ppb |
2014-09-03 | C14090231-004B | 0.800 ppb |
2014-12-01 | C14120136-004B | 1.10 ppb |
2014-12-01 | C14120136-003B | ND |
2014-12-01 | C14120136-002B | 1.20 ppb |
2014-12-01 | C14120136-001B | 1.10 ppb |
2015-03-04 | C15030180-004B | 1.20 ppb |
2015-03-04 | C15030180-003B | ND |
2015-03-04 | C15030180-002B | 1.10 ppb |
2015-03-04 | C15030180-001B | 1.30 ppb |
2015-06-02 | C15060185-002B | 0.760 ppb |
2015-06-02 | C15060185-004B | 0.790 ppb |
2015-06-02 | C15060185-003B | 0.710 ppb |
2015-06-02 | C15060185-001B | 0.990 ppb |
2017-03-07 | C17030344-004B | 3.50 ppb |
2017-03-07 | C17030344-003B | 5.20 ppb |
2017-03-07 | C17030344-002B | 4.40 ppb |
2017-03-07 | C17030344-001B | 3.90 ppb |
2017-09-07 | C17090448-001B | 4.10 ppb |
2017-09-07 | C17090448-004B | 3.10 ppb |
2017-09-07 | C17090448-002B | 3.00 ppb |
2017-09-07 | C17090448-003B | 4.60 ppb |
2017-12-05 | C17120250-004B | 3.50 ppb |
2017-12-05 | C17120250-003B | 3.40 ppb |
2017-12-05 | C17120250-002B | 2.50 ppb |
2017-12-05 | C17120250-001B | 2.90 ppb |
2018-03-12 | C18030476-003B | 4.00 ppb |
2018-03-12 | C18030476-002B | 3.90 ppb |
2018-03-12 | C18030476-001B | 3.80 ppb |
2018-03-12 | C18030476-004B | 4.50 ppb |
2018-06-14 | C18060781-003B | 6.30 ppb |
2018-06-14 | C18060781-004B | 6.70 ppb |
2018-06-15 | C18060781-001B | 5.90 ppb |
2018-06-15 | C18060781-002B | 5.70 ppb |
2018-09-19 | C18090715-003B | 3.60 ppb |
2018-09-19 | C18090715-002B | 1.60 ppb |
2018-09-19 | C18090715-001B | 3.60 ppb |
2018-09-19 | C18090715-004B | 4.60 ppb |
2018-12-10 | C18120390-003B | 2.60 ppb |
2018-12-11 | C18120390-001B | 2.50 ppb |
2018-12-11 | C18120390-002B | 2.20 ppb |
2018-12-11 | C18120390-004B | 2.70 ppb |