Bromoform
Wood River
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | 0.465 ppb | 16 | 12 | ND - 0.772 ppb |
2015 | 1.26 ppb | 16 | 12 | ND - 4.46 ppb |
2016 | 0.468 ppb | 16 | 11 | ND - 0.889 ppb |
2017 | 1.10 ppb | 16 | 13 | ND - 2.80 ppb |
2018 | 0.427 ppb | 16 | 8 | ND - 1.57 ppb |
2019 | 0.148 ppb | 16 | 4 | ND - 0.679 ppb |
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 |
---|---|---|
2014-01-08 | 4010718-01 | 0.504 ppb |
2014-01-08 | 4010718-02 | 0.563 ppb |
2014-01-08 | 4010718-03 | 0.584 ppb |
2014-01-08 | 4010718-04 | 0.618 ppb |
2014-04-08 | 4041526-01 | 0.745 ppb |
2014-04-08 | 4041526-02 | 0.762 ppb |
2014-04-08 | 4041526-03 | 0.772 ppb |
2014-04-08 | 4041526-04 | 0.765 ppb |
2014-07-22 | 4073546-01 | ND |
2014-07-22 | 4073546-02 | ND |
2014-07-22 | 4073546-03 | ND |
2014-07-22 | 4073546-04 | ND |
2014-10-08 | 4101629-03 | 0.517 ppb |
2014-10-08 | 4101629-04 | 0.529 ppb |
2014-10-08 | 4101629-02 | 0.556 ppb |
2014-10-08 | 4101629-01 | 0.535 ppb |
2015-01-19 | 5012511-01 | 0.683 ppb |
2015-01-19 | 5012511-04 | 0.715 ppb |
2015-01-19 | 5012511-02 | 0.669 ppb |
2015-01-19 | 5012511-03 | 0.702 ppb |
2015-04-08 | 5041452-01 | 3.16 ppb |
2015-04-08 | 5041452-04 | 4.46 ppb |
2015-04-08 | 5041452-03 | 3.16 ppb |
2015-04-08 | 5041452-02 | 4.45 ppb |
2015-07-21 | 5073643-02 | ND |
2015-07-21 | 5073643-03 | ND |
2015-07-21 | 5073643-01 | ND |
2015-07-21 | 5073643-04 | ND |
2015-10-14 | 5102363-02 | 0.544 ppb |
2015-10-14 | 5102363-03 | 0.547 ppb |
2015-10-14 | 5102363-01 | 0.576 ppb |
2015-10-14 | 5102363-04 | 0.521 ppb |
2016-01-06 | 6010884-04 | ND |
2016-01-06 | 6010884-03 | ND |
2016-01-06 | 6010884-02 | ND |
2016-01-06 | 6010884-01 | ND |
2016-04-20 | 6043384-02 | 0.697 ppb |
2016-04-20 | 6043384-04 | 0.889 ppb |
2016-04-20 | 6043384-01 | 0.817 ppb |
2016-04-20 | 6043384-03 | 0.736 ppb |
2016-07-12 | 6072217-04 | 0.526 ppb |
2016-07-12 | 6072217-01 | 0.631 ppb |
2016-07-12 | 6072217-02 | ND |
2016-07-12 | 6072217-03 | 0.655 ppb |
2016-10-18 | 6102987-01 | 0.660 ppb |
2016-10-18 | 6102987-04 | 0.627 ppb |
2016-10-18 | 6102987-02 | 0.561 ppb |
2016-10-18 | 6102987-03 | 0.682 ppb |
2017-01-11 | 7011796-01 | 1.25 ppb |
2017-01-11 | 7011796-04 | 1.05 ppb |
2017-01-11 | 7011796-03 | 1.05 ppb |
2017-01-11 | 7011796-02 | 0.511 ppb |
2017-04-10 | 7041582-03 | ND |
2017-04-10 | 7041582-04 | 0.624 ppb |
2017-04-10 | 7041582-01 | 0.589 ppb |
2017-04-10 | 7041582-02 | ND |
2017-07-24 | 7074951-02 | ND |
2017-07-24 | 7074951-04 | 0.510 ppb |
2017-07-24 | 7074951-01 | 0.563 ppb |
2017-07-24 | 7074951-03 | 0.561 ppb |
2017-10-18 | 7103465-01 | 2.80 ppb |
2017-10-18 | 7103465-03 | 2.69 ppb |
2017-10-18 | 7103465-02 | 2.73 ppb |
2017-10-18 | 7103465-04 | 2.74 ppb |
2018-01-22 | 8013417-04 | ND |
2018-01-22 | 8013417-03 | ND |
2018-01-22 | 8013417-02 | ND |
2018-01-22 | 8013417-01 | ND |
2018-04-24 | 8044394-04 | ND |
2018-04-24 | 8044394-01 | ND |
2018-04-24 | 8044394-02 | ND |
2018-04-24 | 8044394-03 | ND |
2018-07-25 | 8074923-04 | 0.521 ppb |
2018-07-25 | 8074923-03 | 0.545 ppb |
2018-07-25 | 8074923-02 | 0.529 ppb |
2018-07-25 | 8074923-01 | 0.649 ppb |
2018-10-17 | 8103701-01 | 1.57 ppb |
2018-10-17 | 8103701-02 | 0.904 ppb |
2018-10-17 | 8103701-03 | 1.20 ppb |
2018-10-17 | 8103701-04 | 0.907 ppb |
2019-01-15 | 9012774-01 | 0.521 ppb |
2019-01-15 | 9012774-02 | ND |
2019-01-15 | 9012774-03 | 0.553 ppb |
2019-01-15 | 9012774-04 | ND |
2019-04-23 | 9045012-01 | ND |
2019-04-23 | 9045012-04 | ND |
2019-04-23 | 9045012-03 | ND |
2019-04-23 | 9045012-02 | ND |
2019-07-24 | 9075164-02 | ND |
2019-07-24 | 9075164-04 | ND |
2019-07-24 | 9075164-03 | ND |
2019-07-24 | 9075164-01 | ND |
2019-10-21 | 9104380-04 | ND |
2019-10-21 | 9104380-03 | 0.607 ppb |
2019-10-21 | 9104380-02 | ND |
2019-10-21 | 9104380-01 | 0.679 ppb |