Bromodichloromethane
Natchitoches 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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | 6.16 ppb | 34 | 34 | 3.00 ppb - 9.10 ppb |
2015 | 4.22 ppb | 56 | 56 | 2.10 ppb - 5.30 ppb |
2016 | 3.33 ppb | 32 | 32 | 2.10 ppb - 4.30 ppb |
2017 | 2.86 ppb | 32 | 28 | ND - 4.00 ppb |
2018 | 2.86 ppb | 32 | 32 | 1.60 ppb - 4.30 ppb |
2019 | 2.82 ppb | 32 | 28 | ND - 5.20 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 |
---|---|---|
2014-03-06 | 680-99232-6 | 3.00 ppb |
2014-03-06 | 680-99232-7 | 4.70 ppb |
2014-03-06 | 680-99232-8 | 3.50 ppb |
2014-03-06 | 680-99232-9 | 4.00 ppb |
2014-03-06 | 680-99232-6 | 3.00 ppb |
2014-03-06 | 680-99232-7 | 4.70 ppb |
2014-03-06 | 680-99232-8 | 3.50 ppb |
2014-03-06 | 680-99232-9 | 4.00 ppb |
2014-04-14 | AD90602 | 4.35 ppb |
2014-04-14 | AD90602 | 4.35 ppb |
2014-06-05 | 680-102053-1 | 5.40 ppb |
2014-06-05 | 680-102053-2 | 5.60 ppb |
2014-06-05 | 680-102053-3 | 5.20 ppb |
2014-06-05 | 680-102053-4 | 5.40 ppb |
2014-06-05 | 680-102053-1 | 5.40 ppb |
2014-06-05 | 680-102053-2 | 5.60 ppb |
2014-06-05 | 680-102053-3 | 5.20 ppb |
2014-06-05 | 680-102053-4 | 5.40 ppb |
2014-09-04 | 680-104963-13 | 7.90 ppb |
2014-09-04 | 680-104963-14 | 8.30 ppb |
2014-09-04 | 680-104963-15 | 7.70 ppb |
2014-09-04 | 680-104963-16 | 7.90 ppb |
2014-09-04 | 680-104963-13 | 7.90 ppb |
2014-09-04 | 680-104963-14 | 8.30 ppb |
2014-09-04 | 680-104963-15 | 7.70 ppb |
2014-09-04 | 680-104963-16 | 7.90 ppb |
2014-12-02 | 680-107780-10 | 7.40 ppb |
2014-12-02 | 680-107780-7 | 7.30 ppb |
2014-12-02 | 680-107780-8 | 8.00 ppb |
2014-12-02 | 680-107780-9 | 9.10 ppb |
2014-12-02 | 680-107780-10 | 7.40 ppb |
2014-12-02 | 680-107780-7 | 7.30 ppb |
2014-12-02 | 680-107780-8 | 8.00 ppb |
2014-12-02 | 680-107780-9 | 9.10 ppb |
2015-03-04 | 680-110515-10 | 5.30 ppb |
2015-03-04 | 680-110515-7 | 5.00 ppb |
2015-03-04 | 680-110515-8 | 5.30 ppb |
2015-03-04 | 680-110515-9 | 5.00 ppb |
2015-03-04 | 680-110515-10 | 5.30 ppb |
2015-03-04 | 680-110515-7 | 5.00 ppb |
2015-03-04 | 680-110515-8 | 5.30 ppb |
2015-03-04 | 680-110515-9 | 5.00 ppb |
2015-06-05 | 680-113468-1 | 4.90 ppb |
2015-06-05 | 680-113468-2 | 4.90 ppb |
2015-06-05 | 680-113468-3 | 4.10 ppb |
2015-06-05 | 680-113468-4 | 4.10 ppb |
2015-06-05 | 680-113468-1 | 4.90 ppb |
2015-06-05 | 680-113468-2 | 4.90 ppb |
2015-06-05 | 680-113468-3 | 4.10 ppb |
2015-06-05 | 680-113468-4 | 4.10 ppb |
2015-06-26 | 680-114023-1 | 4.70 ppb |
2015-06-26 | 680-114023-2 | 5.10 ppb |
2015-06-26 | 680-114023-3 | 5.00 ppb |
2015-06-26 | 680-114023-4 | 4.50 ppb |
2015-06-26 | 680-114023-1 | 4.70 ppb |
2015-06-26 | 680-114023-2 | 5.10 ppb |
2015-06-26 | 680-114023-3 | 5.00 ppb |
2015-06-26 | 680-114023-4 | 4.50 ppb |
2015-06-30 | 680-114108-1 | 4.40 ppb |
2015-06-30 | 680-114108-2 | 4.80 ppb |
2015-06-30 | 680-114108-3 | 4.40 ppb |
2015-06-30 | 680-114108-4 | 4.90 ppb |
2015-06-30 | 680-114108-1 | 4.40 ppb |
2015-06-30 | 680-114108-2 | 4.80 ppb |
2015-06-30 | 680-114108-3 | 4.40 ppb |
2015-06-30 | 680-114108-4 | 4.90 ppb |
2015-09-30 | 680-117346-1 | 3.80 ppb |
2015-09-30 | 680-117346-2 | 3.90 ppb |
2015-09-30 | 680-117346-3 | 3.80 ppb |
2015-09-30 | 680-117346-4 | 4.10 ppb |
2015-09-30 | 680-117346-1 | 3.80 ppb |
2015-09-30 | 680-117346-2 | 3.90 ppb |
2015-09-30 | 680-117346-3 | 3.80 ppb |
2015-09-30 | 680-117346-4 | 4.10 ppb |
2015-12-01 | 680-119845-1 | 4.10 ppb |
2015-12-01 | 680-119845-2 | 4.30 ppb |
2015-12-01 | 680-119845-3 | 4.30 ppb |
2015-12-01 | 680-119845-4 | 4.30 ppb |
2015-12-01 | 680-119845-1 | 4.10 ppb |
2015-12-01 | 680-119845-2 | 4.30 ppb |
2015-12-01 | 680-119845-3 | 4.30 ppb |
2015-12-01 | 680-119845-4 | 4.30 ppb |
2015-12-31 | 680-120573-1 | 2.10 ppb |
2015-12-31 | 680-120573-2 | 2.50 ppb |
2015-12-31 | 680-120573-3 | 2.30 ppb |
2015-12-31 | 680-120573-4 | 2.20 ppb |
2015-12-31 | 680-120573-1 | 2.10 ppb |
2015-12-31 | 680-120573-2 | 2.50 ppb |
2015-12-31 | 680-120573-3 | 2.30 ppb |
2015-12-31 | 680-120573-4 | 2.20 ppb |
2016-03-02 | 680-122490-4 | 3.90 ppb |
2016-03-02 | 680-122490-5 | 4.10 ppb |
2016-03-02 | 680-122490-6 | 4.30 ppb |
2016-03-02 | 680-122490-7 | 3.90 ppb |
2016-03-02 | 680-122490-4 | 3.90 ppb |
2016-03-02 | 680-122490-5 | 4.10 ppb |
2016-03-02 | 680-122490-6 | 4.30 ppb |
2016-03-02 | 680-122490-7 | 3.90 ppb |
2016-06-08 | 680-126620-1 | 3.20 ppb |
2016-06-08 | 680-126620-2 | 3.80 ppb |
2016-06-08 | 680-126620-3 | 3.30 ppb |
2016-06-08 | 680-126620-4 | 3.30 ppb |
2016-06-08 | 680-126620-1 | 3.20 ppb |
2016-06-08 | 680-126620-2 | 3.80 ppb |
2016-06-08 | 680-126620-3 | 3.30 ppb |
2016-06-08 | 680-126620-4 | 3.30 ppb |
2016-09-08 | 680-129861-1 | 3.00 ppb |
2016-09-08 | 680-129861-2 | 3.70 ppb |
2016-09-08 | 680-129861-3 | 3.30 ppb |
2016-09-08 | 680-129861-4 | 3.50 ppb |
2016-09-08 | 680-129861-1 | 3.00 ppb |
2016-09-08 | 680-129861-2 | 3.70 ppb |
2016-09-08 | 680-129861-3 | 3.30 ppb |
2016-09-08 | 680-129861-4 | 3.50 ppb |
2016-12-06 | 680-132836-10 | 2.10 ppb |
2016-12-06 | 680-132836-11 | 3.10 ppb |
2016-12-06 | 680-132836-12 | 2.30 ppb |
2016-12-06 | 680-132836-13 | 2.40 ppb |
2016-12-06 | 680-132836-10 | 2.10 ppb |
2016-12-06 | 680-132836-11 | 3.10 ppb |
2016-12-06 | 680-132836-12 | 2.30 ppb |
2016-12-06 | 680-132836-13 | 2.40 ppb |
2017-03-02 | 35298741021 | 3.90 ppb |
2017-03-02 | 35298741022 | 3.60 ppb |
2017-03-02 | 35298741023 | 4.00 ppb |
2017-03-02 | 35298741024 | 3.70 ppb |
2017-03-02 | 35298741021 | 3.90 ppb |
2017-03-02 | 35298741022 | 3.60 ppb |
2017-03-02 | 35298741023 | 4.00 ppb |
2017-03-02 | 35298741024 | 3.70 ppb |
2017-06-27 | 35321385014 | 3.90 ppb |
2017-06-27 | 35321385014 | 3.90 ppb |
2017-07-21 | 35325892009 | 3.80 ppb |
2017-07-21 | 35325892010 | 3.10 ppb |
2017-07-21 | 35325892011 | 3.30 ppb |
2017-07-21 | 35325892009 | 3.80 ppb |
2017-07-21 | 35325892010 | 3.10 ppb |
2017-07-21 | 35325892011 | 3.30 ppb |
2017-09-14 | 35335848013 | 2.50 ppb |
2017-09-14 | 35335848014 | 3.00 ppb |
2017-09-14 | 35335848015 | 2.90 ppb |
2017-09-14 | 35335848016 | 2.50 ppb |
2017-09-14 | 35335848013 | 2.50 ppb |
2017-09-14 | 35335848014 | 3.00 ppb |
2017-09-14 | 35335848015 | 2.90 ppb |
2017-09-14 | 35335848016 | 2.50 ppb |
2017-12-14 | 35363575001 | ND |
2017-12-14 | 35363575002 | 3.30 ppb |
2017-12-14 | 35363575003 | 2.20 ppb |
2017-12-14 | 35363575004 | ND |
2017-12-14 | 35363575001 | ND |
2017-12-14 | 35363575002 | 3.30 ppb |
2017-12-14 | 35363575003 | 2.20 ppb |
2017-12-14 | 35363575004 | ND |
2018-03-15 | 35380704001 | 2.10 ppb |
2018-03-15 | 35380704002 | 2.70 ppb |
2018-03-15 | 35380704003 | 1.90 ppb |
2018-03-15 | 35380704004 | 2.30 ppb |
2018-03-15 | 35380704001 | 2.10 ppb |
2018-03-15 | 35380704002 | 2.70 ppb |
2018-03-15 | 35380704003 | 1.90 ppb |
2018-03-15 | 35380704004 | 2.30 ppb |
2018-06-25 | 35401074001 | 4.10 ppb |
2018-06-25 | 35401074002 | 3.00 ppb |
2018-06-25 | 35401074003 | 4.30 ppb |
2018-06-25 | 35401074004 | 3.30 ppb |
2018-06-25 | 35401074001 | 4.10 ppb |
2018-06-25 | 35401074002 | 3.00 ppb |
2018-06-25 | 35401074003 | 4.30 ppb |
2018-06-25 | 35401074004 | 3.30 ppb |
2018-09-18 | 35418776002 | 4.00 ppb |
2018-09-18 | 35418776004 | 3.50 ppb |
2018-09-18 | 35418776002 | 4.00 ppb |
2018-09-18 | 35418776004 | 3.50 ppb |
2018-09-26 | 35420661001 | 3.40 ppb |
2018-09-26 | 35420661002 | 3.50 ppb |
2018-09-26 | 35420661001 | 3.40 ppb |
2018-09-26 | 35420661002 | 3.50 ppb |
2018-12-17 | 35438424001 | 1.60 ppb |
2018-12-17 | 35438424002 | 2.20 ppb |
2018-12-17 | 35438424003 | 1.80 ppb |
2018-12-17 | 35438424004 | 2.10 ppb |
2018-12-17 | 35438424001 | 1.60 ppb |
2018-12-17 | 35438424002 | 2.20 ppb |
2018-12-17 | 35438424003 | 1.80 ppb |
2018-12-17 | 35438424004 | 2.10 ppb |
2019-03-07 | 35453400001 | 2.40 ppb |
2019-03-07 | 35453400002 | 3.20 ppb |
2019-03-07 | 35453400003 | ND |
2019-03-07 | 35453400004 | ND |
2019-03-07 | 35453400001 | 2.40 ppb |
2019-03-07 | 35453400002 | 3.20 ppb |
2019-03-07 | 35453400003 | ND |
2019-03-07 | 35453400004 | ND |
2019-06-24 | 35478413001 | 2.90 ppb |
2019-06-24 | 35478413002 | 3.00 ppb |
2019-06-24 | 35478413003 | 3.80 ppb |
2019-06-24 | 35478413004 | 3.60 ppb |
2019-06-24 | 35478413001 | 2.90 ppb |
2019-06-24 | 35478413002 | 3.00 ppb |
2019-06-24 | 35478413003 | 3.80 ppb |
2019-06-24 | 35478413004 | 3.60 ppb |
2019-09-12 | 35497561001 | 3.70 ppb |
2019-09-12 | 35497561002 | 5.20 ppb |
2019-09-12 | 35497561003 | 3.60 ppb |
2019-09-12 | 35497561004 | 4.90 ppb |
2019-09-12 | 35497561001 | 3.70 ppb |
2019-09-12 | 35497561002 | 5.20 ppb |
2019-09-12 | 35497561003 | 3.60 ppb |
2019-09-12 | 35497561004 | 4.90 ppb |
2019-12-17 | 35520110001 | 1.50 ppb |
2019-12-17 | 35520110002 | 2.70 ppb |
2019-12-17 | 35520110003 | 1.60 ppb |
2019-12-17 | 35520110004 | 3.00 ppb |
2019-12-17 | 35520110001 | 1.50 ppb |
2019-12-17 | 35520110002 | 2.70 ppb |
2019-12-17 | 35520110003 | 1.60 ppb |
2019-12-17 | 35520110004 | 3.00 ppb |