Bromodichloromethane
Blanchard Water System
Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane 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 | 5.73 ppb | 42 | 42 | 2.53 ppb - 8.70 ppb |
2015 | 5.23 ppb | 32 | 32 | 2.90 ppb - 8.70 ppb |
2016 | 4.82 ppb | 32 | 32 | 3.40 ppb - 6.60 ppb |
2017 | 7.14 ppb | 32 | 32 | 3.80 ppb - 9.80 ppb |
2018 | 7.19 ppb | 32 | 32 | 3.60 ppb - 11.5 ppb |
2019 | 6.25 ppb | 32 | 30 | ND - 12.0 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.06 ppb
The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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 |
---|---|---|
2014-03-07 | 680-99282-1 | 5.10 ppb |
2014-03-07 | 680-99282-2 | 4.00 ppb |
2014-03-07 | 680-99282-3 | 4.20 ppb |
2014-03-07 | 680-99282-4 | 3.60 ppb |
2014-03-07 | 680-99282-1 | 5.10 ppb |
2014-03-07 | 680-99282-2 | 4.00 ppb |
2014-03-07 | 680-99282-3 | 4.20 ppb |
2014-03-07 | 680-99282-4 | 3.60 ppb |
2014-04-07 | AD90458 | 2.53 ppb |
2014-04-07 | AD90458 | 2.53 ppb |
2014-05-05 | 680-101033-15 | 7.00 ppb |
2014-05-05 | 680-101033-16 | 7.00 ppb |
2014-05-05 | 680-101033-17 | 5.50 ppb |
2014-05-05 | 680-101033-18 | 6.70 ppb |
2014-05-05 | 680-101033-15 | 7.00 ppb |
2014-05-05 | 680-101033-16 | 7.00 ppb |
2014-05-05 | 680-101033-17 | 5.50 ppb |
2014-05-05 | 680-101033-18 | 6.70 ppb |
2014-06-03 | 680-102087-15 | 4.20 ppb |
2014-06-03 | 680-102087-16 | 4.20 ppb |
2014-06-03 | 680-102087-17 | 4.60 ppb |
2014-06-03 | 680-102087-18 | 4.50 ppb |
2014-06-03 | 680-102087-15 | 4.20 ppb |
2014-06-03 | 680-102087-16 | 4.20 ppb |
2014-06-03 | 680-102087-17 | 4.60 ppb |
2014-06-03 | 680-102087-18 | 4.50 ppb |
2014-09-02 | 680-104983-15 | 7.90 ppb |
2014-09-02 | 680-104983-16 | 7.30 ppb |
2014-09-02 | 680-104983-17 | 8.70 ppb |
2014-09-02 | 680-104983-18 | 6.30 ppb |
2014-09-02 | 680-104983-15 | 7.90 ppb |
2014-09-02 | 680-104983-16 | 7.30 ppb |
2014-09-02 | 680-104983-17 | 8.70 ppb |
2014-09-02 | 680-104983-18 | 6.30 ppb |
2014-12-02 | 680-107795-1 | 6.60 ppb |
2014-12-02 | 680-107795-2 | 5.90 ppb |
2014-12-02 | 680-107795-3 | 7.70 ppb |
2014-12-02 | 680-107795-4 | 6.90 ppb |
2014-12-02 | 680-107795-1 | 6.60 ppb |
2014-12-02 | 680-107795-2 | 5.90 ppb |
2014-12-02 | 680-107795-3 | 7.70 ppb |
2014-12-02 | 680-107795-4 | 6.90 ppb |
2015-03-04 | 680-110410-6 | 3.60 ppb |
2015-03-04 | 680-110410-7 | 3.20 ppb |
2015-03-04 | 680-110410-8 | 2.90 ppb |
2015-03-04 | 680-110410-9 | 3.20 ppb |
2015-03-04 | 680-110410-6 | 3.60 ppb |
2015-03-04 | 680-110410-7 | 3.20 ppb |
2015-03-04 | 680-110410-8 | 2.90 ppb |
2015-03-04 | 680-110410-9 | 3.20 ppb |
2015-06-02 | 680-113293-13 | 5.40 ppb |
2015-06-02 | 680-113293-14 | 5.40 ppb |
2015-06-02 | 680-113293-15 | 5.30 ppb |
2015-06-02 | 680-113293-16 | 5.40 ppb |
2015-06-02 | 680-113293-13 | 5.40 ppb |
2015-06-02 | 680-113293-14 | 5.40 ppb |
2015-06-02 | 680-113293-15 | 5.30 ppb |
2015-06-02 | 680-113293-16 | 5.40 ppb |
2015-09-01 | 680-116264-1 | 8.70 ppb |
2015-09-01 | 680-116264-2 | 8.00 ppb |
2015-09-01 | 680-116264-3 | 8.30 ppb |
2015-09-01 | 680-116264-4 | 8.10 ppb |
2015-09-01 | 680-116264-1 | 8.70 ppb |
2015-09-01 | 680-116264-2 | 8.00 ppb |
2015-09-01 | 680-116264-3 | 8.30 ppb |
2015-09-01 | 680-116264-4 | 8.10 ppb |
2015-12-01 | 680-119631-13 | 4.50 ppb |
2015-12-01 | 680-119631-14 | 3.30 ppb |
2015-12-01 | 680-119631-15 | 3.80 ppb |
2015-12-01 | 680-119631-16 | 4.50 ppb |
2015-12-01 | 680-119631-13 | 4.50 ppb |
2015-12-01 | 680-119631-14 | 3.30 ppb |
2015-12-01 | 680-119631-15 | 3.80 ppb |
2015-12-01 | 680-119631-16 | 4.50 ppb |
2016-03-01 | 680-122612-13 | 4.60 ppb |
2016-03-01 | 680-122612-14 | 4.20 ppb |
2016-03-01 | 680-122612-15 | 4.10 ppb |
2016-03-01 | 680-122612-16 | 4.40 ppb |
2016-03-01 | 680-122612-13 | 4.60 ppb |
2016-03-01 | 680-122612-14 | 4.20 ppb |
2016-03-01 | 680-122612-15 | 4.10 ppb |
2016-03-01 | 680-122612-16 | 4.40 ppb |
2016-06-07 | 680-126182-1 | 5.60 ppb |
2016-06-07 | 680-126182-2 | 4.50 ppb |
2016-06-07 | 680-126182-3 | 4.70 ppb |
2016-06-07 | 680-126182-4 | 4.90 ppb |
2016-06-07 | 680-126182-1 | 5.60 ppb |
2016-06-07 | 680-126182-2 | 4.50 ppb |
2016-06-07 | 680-126182-3 | 4.70 ppb |
2016-06-07 | 680-126182-4 | 4.90 ppb |
2016-09-07 | 680-129623-10 | 6.60 ppb |
2016-09-07 | 680-129623-11 | 6.20 ppb |
2016-09-07 | 680-129623-8 | 6.60 ppb |
2016-09-07 | 680-129623-9 | 6.50 ppb |
2016-09-07 | 680-129623-10 | 6.60 ppb |
2016-09-07 | 680-129623-11 | 6.20 ppb |
2016-09-07 | 680-129623-8 | 6.60 ppb |
2016-09-07 | 680-129623-9 | 6.50 ppb |
2016-12-06 | 680-132880-1 | 3.80 ppb |
2016-12-06 | 680-132880-2 | 3.50 ppb |
2016-12-06 | 680-132880-3 | 3.50 ppb |
2016-12-06 | 680-132880-4 | 3.40 ppb |
2016-12-06 | 680-132880-1 | 3.80 ppb |
2016-12-06 | 680-132880-2 | 3.50 ppb |
2016-12-06 | 680-132880-3 | 3.50 ppb |
2016-12-06 | 680-132880-4 | 3.40 ppb |
2017-03-09 | 35300169001 | 7.00 ppb |
2017-03-09 | 35300169002 | 6.60 ppb |
2017-03-09 | 35300169003 | 6.40 ppb |
2017-03-09 | 35300169004 | 6.10 ppb |
2017-03-09 | 35300169001 | 7.00 ppb |
2017-03-09 | 35300169002 | 6.60 ppb |
2017-03-09 | 35300169003 | 6.40 ppb |
2017-03-09 | 35300169004 | 6.10 ppb |
2017-06-16 | 35318967009 | 7.50 ppb |
2017-06-16 | 35318967010 | 8.60 ppb |
2017-06-16 | 35318967011 | 9.20 ppb |
2017-06-16 | 35318967012 | 8.00 ppb |
2017-06-16 | 35318967009 | 7.50 ppb |
2017-06-16 | 35318967010 | 8.60 ppb |
2017-06-16 | 35318967011 | 9.20 ppb |
2017-06-16 | 35318967012 | 8.00 ppb |
2017-09-22 | 35339070011 | 9.80 ppb |
2017-09-22 | 35339070012 | 9.70 ppb |
2017-09-22 | 35339070013 | 9.50 ppb |
2017-09-22 | 35339070039 | 7.20 ppb |
2017-09-22 | 35339070011 | 9.80 ppb |
2017-09-22 | 35339070012 | 9.70 ppb |
2017-09-22 | 35339070013 | 9.50 ppb |
2017-09-22 | 35339070039 | 7.20 ppb |
2017-12-20 | 35364996001 | 6.30 ppb |
2017-12-20 | 35364996002 | 4.60 ppb |
2017-12-20 | 35364996003 | 3.90 ppb |
2017-12-20 | 35364996004 | 3.80 ppb |
2017-12-20 | 35364996001 | 6.30 ppb |
2017-12-20 | 35364996002 | 4.60 ppb |
2017-12-20 | 35364996003 | 3.90 ppb |
2017-12-20 | 35364996004 | 3.80 ppb |
2018-03-27 | 35382529001 | 3.90 ppb |
2018-03-27 | 35382529002 | 3.80 ppb |
2018-03-27 | 35382529003 | 3.60 ppb |
2018-03-27 | 35382529004 | 3.60 ppb |
2018-03-27 | 35382529001 | 3.90 ppb |
2018-03-27 | 35382529002 | 3.80 ppb |
2018-03-27 | 35382529003 | 3.60 ppb |
2018-03-27 | 35382529004 | 3.60 ppb |
2018-06-22 | 35400070001 | 10.8 ppb |
2018-06-22 | 35400070002 | 10.4 ppb |
2018-06-22 | 35400070003 | 10.1 ppb |
2018-06-22 | 35400070004 | 10.1 ppb |
2018-06-22 | 35400070001 | 10.8 ppb |
2018-06-22 | 35400070002 | 10.4 ppb |
2018-06-22 | 35400070003 | 10.1 ppb |
2018-06-22 | 35400070004 | 10.1 ppb |
2018-09-11 | 35417283001 | 11.5 ppb |
2018-09-11 | 35417283002 | 10.6 ppb |
2018-09-11 | 35417283003 | 10.1 ppb |
2018-09-11 | 35417283004 | 9.30 ppb |
2018-09-11 | 35417283001 | 11.5 ppb |
2018-09-11 | 35417283002 | 10.6 ppb |
2018-09-11 | 35417283003 | 10.1 ppb |
2018-09-11 | 35417283004 | 9.30 ppb |
2018-12-06 | 35435843001 | 4.50 ppb |
2018-12-06 | 35435843002 | 4.30 ppb |
2018-12-06 | 35435843003 | 4.30 ppb |
2018-12-06 | 35435843004 | 4.20 ppb |
2018-12-06 | 35435843001 | 4.50 ppb |
2018-12-06 | 35435843002 | 4.30 ppb |
2018-12-06 | 35435843003 | 4.30 ppb |
2018-12-06 | 35435843004 | 4.20 ppb |
2019-03-01 | 35451811001 | 3.90 ppb |
2019-03-01 | 35451811002 | 3.60 ppb |
2019-03-01 | 35451811003 | 3.20 ppb |
2019-03-01 | 35451811004 | ND |
2019-03-01 | 35451811001 | 3.90 ppb |
2019-03-01 | 35451811002 | 3.60 ppb |
2019-03-01 | 35451811003 | 3.20 ppb |
2019-03-01 | 35451811004 | ND |
2019-06-20 | 35477232001 | 7.80 ppb |
2019-06-20 | 35477232002 | 7.40 ppb |
2019-06-20 | 35477232003 | 7.00 ppb |
2019-06-20 | 35477232004 | 6.50 ppb |
2019-06-20 | 35477232001 | 7.80 ppb |
2019-06-20 | 35477232002 | 7.40 ppb |
2019-06-20 | 35477232003 | 7.00 ppb |
2019-06-20 | 35477232004 | 6.50 ppb |
2019-09-18 | 35499049001 | 10.7 ppb |
2019-09-18 | 35499049002 | 10.2 ppb |
2019-09-18 | 35499049003 | 12.0 ppb |
2019-09-18 | 35499049004 | 11.4 ppb |
2019-09-18 | 35499049001 | 10.7 ppb |
2019-09-18 | 35499049002 | 10.2 ppb |
2019-09-18 | 35499049003 | 12.0 ppb |
2019-09-18 | 35499049004 | 11.4 ppb |
2019-12-02 | 35516626001 | 4.40 ppb |
2019-12-02 | 35516626002 | 4.10 ppb |
2019-12-02 | 35516626003 | 3.80 ppb |
2019-12-02 | 35516626004 | 4.00 ppb |
2019-12-02 | 35516626001 | 4.40 ppb |
2019-12-02 | 35516626002 | 4.10 ppb |
2019-12-02 | 35516626003 | 3.80 ppb |
2019-12-02 | 35516626004 | 4.00 ppb |