Bromodichloromethane
New Orleans Algiers Water Works
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 3.50 ppb | 64 | 58 | ND - 10.6 ppb |
| 2019 | 2.41 ppb | 64 | 64 | 1.000 ppb - 3.90 ppb |
| 2020 | 2.39 ppb | 32 | 32 | 0.880 ppb - 4.60 ppb |
| 2021 | 4.66 ppb | 32 | 32 | 2.70 ppb - 7.30 ppb |
| 2022 | 4.45 ppb | 40 | 40 | 3.40 ppb - 5.90 ppb |
| 2023 | 4.98 ppb | 32 | 32 | 3.10 ppb - 6.60 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.06 ppb
The EWG Health Guideline of 0.06 ppb for bromodichloromethane was based on the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer and harm to fetal growth and development.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-26 | 35370656001 | 8.40 ppb |
| 2018-01-26 | 35370656002 | 8.20 ppb |
| 2018-01-26 | 35370656003 | 10.6 ppb |
| 2018-01-26 | 35370656004 | 8.20 ppb |
| 2018-01-26 | 35370656005 | 8.90 ppb |
| 2018-01-26 | 35370656006 | 8.10 ppb |
| 2018-01-26 | 35370656001 | 8.40 ppb |
| 2018-01-26 | 35370656002 | 8.20 ppb |
| 2018-01-26 | 35370656003 | 10.6 ppb |
| 2018-01-26 | 35370656004 | 8.20 ppb |
| 2018-01-26 | 35370656005 | 8.90 ppb |
| 2018-01-26 | 35370656006 | 8.10 ppb |
| 2018-01-29 | 35371046001 | 5.60 ppb |
| 2018-01-29 | 35371046002 | 5.70 ppb |
| 2018-01-29 | 35371046001 | 5.60 ppb |
| 2018-01-29 | 35371046002 | 5.70 ppb |
| 2018-04-18 | 35387133001 | 1.60 ppb |
| 2018-04-18 | 35387133002 | ND |
| 2018-04-18 | 35387133003 | 1.60 ppb |
| 2018-04-18 | 35387133004 | ND |
| 2018-04-18 | 35387133005 | 1.70 ppb |
| 2018-04-18 | 35387133006 | 1.50 ppb |
| 2018-04-18 | 35387133007 | ND |
| 2018-04-18 | 35387133008 | 1.30 ppb |
| 2018-04-18 | 35387133001 | 1.60 ppb |
| 2018-04-18 | 35387133002 | ND |
| 2018-04-18 | 35387133003 | 1.60 ppb |
| 2018-04-18 | 35387133004 | ND |
| 2018-04-18 | 35387133005 | 1.70 ppb |
| 2018-04-18 | 35387133006 | 1.50 ppb |
| 2018-04-18 | 35387133007 | ND |
| 2018-04-18 | 35387133008 | 1.30 ppb |
| 2018-07-24 | 35407086001 | 2.90 ppb |
| 2018-07-24 | 35407086002 | 3.60 ppb |
| 2018-07-24 | 35407086003 | 3.50 ppb |
| 2018-07-24 | 35407086004 | 3.70 ppb |
| 2018-07-24 | 35407086005 | 3.90 ppb |
| 2018-07-24 | 35407086007 | 3.40 ppb |
| 2018-07-24 | 35407086008 | 2.80 ppb |
| 2018-07-24 | 35407086001 | 2.90 ppb |
| 2018-07-24 | 35407086002 | 3.60 ppb |
| 2018-07-24 | 35407086003 | 3.50 ppb |
| 2018-07-24 | 35407086004 | 3.70 ppb |
| 2018-07-24 | 35407086005 | 3.90 ppb |
| 2018-07-24 | 35407086007 | 3.40 ppb |
| 2018-07-24 | 35407086008 | 2.80 ppb |
| 2018-07-31 | 35407845001 | 3.50 ppb |
| 2018-07-31 | 35407845001 | 3.50 ppb |
| 2018-10-16 | 35424779001 | 1.70 ppb |
| 2018-10-16 | 35424779002 | 1.70 ppb |
| 2018-10-16 | 35424779003 | 1.40 ppb |
| 2018-10-16 | 35424779004 | 2.00 ppb |
| 2018-10-16 | 35424779005 | 2.60 ppb |
| 2018-10-16 | 35424779006 | 1.30 ppb |
| 2018-10-16 | 35424779007 | 1.40 ppb |
| 2018-10-16 | 35424779008 | 1.30 ppb |
| 2018-10-16 | 35424779001 | 1.70 ppb |
| 2018-10-16 | 35424779002 | 1.70 ppb |
| 2018-10-16 | 35424779003 | 1.40 ppb |
| 2018-10-16 | 35424779004 | 2.00 ppb |
| 2018-10-16 | 35424779005 | 2.60 ppb |
| 2018-10-16 | 35424779006 | 1.30 ppb |
| 2018-10-16 | 35424779007 | 1.40 ppb |
| 2018-10-16 | 35424779008 | 1.30 ppb |
| 2019-01-09 | 35441740001 | 3.50 ppb |
| 2019-01-09 | 35441740002 | 3.80 ppb |
| 2019-01-09 | 35441740003 | 3.00 ppb |
| 2019-01-09 | 35441740004 | 3.90 ppb |
| 2019-01-09 | 35441740005 | 3.90 ppb |
| 2019-01-09 | 35441740006 | 3.10 ppb |
| 2019-01-09 | 35441740007 | 3.20 ppb |
| 2019-01-09 | 35441740008 | 3.30 ppb |
| 2019-01-09 | 35441740001 | 3.50 ppb |
| 2019-01-09 | 35441740002 | 3.80 ppb |
| 2019-01-09 | 35441740003 | 3.00 ppb |
| 2019-01-09 | 35441740004 | 3.90 ppb |
| 2019-01-09 | 35441740005 | 3.90 ppb |
| 2019-01-09 | 35441740006 | 3.10 ppb |
| 2019-01-09 | 35441740007 | 3.20 ppb |
| 2019-01-09 | 35441740008 | 3.30 ppb |
| 2019-04-26 | 35464578001 | 1.80 ppb |
| 2019-04-26 | 35464578002 | 1.80 ppb |
| 2019-04-26 | 35464578003 | 1.60 ppb |
| 2019-04-26 | 35464578004 | 1.50 ppb |
| 2019-04-26 | 35464578005 | 2.20 ppb |
| 2019-04-26 | 35464578006 | 1.000 ppb |
| 2019-04-26 | 35464578007 | 1.20 ppb |
| 2019-04-26 | 35464578008 | 1.20 ppb |
| 2019-04-26 | 35464578001 | 1.80 ppb |
| 2019-04-26 | 35464578002 | 1.80 ppb |
| 2019-04-26 | 35464578003 | 1.60 ppb |
| 2019-04-26 | 35464578004 | 1.50 ppb |
| 2019-04-26 | 35464578005 | 2.20 ppb |
| 2019-04-26 | 35464578006 | 1.000 ppb |
| 2019-04-26 | 35464578007 | 1.20 ppb |
| 2019-04-26 | 35464578008 | 1.20 ppb |
| 2019-07-11 | 35481752001 | 1.70 ppb |
| 2019-07-11 | 35481752002 | 2.10 ppb |
| 2019-07-11 | 35481752003 | 1.50 ppb |
| 2019-07-11 | 35481752004 | 2.10 ppb |
| 2019-07-11 | 35481752005 | 2.30 ppb |
| 2019-07-11 | 35481752006 | 1.50 ppb |
| 2019-07-11 | 35481752007 | 1.60 ppb |
| 2019-07-11 | 35481752008 | 1.70 ppb |
| 2019-07-11 | 35481752001 | 1.70 ppb |
| 2019-07-11 | 35481752002 | 2.10 ppb |
| 2019-07-11 | 35481752003 | 1.50 ppb |
| 2019-07-11 | 35481752004 | 2.10 ppb |
| 2019-07-11 | 35481752005 | 2.30 ppb |
| 2019-07-11 | 35481752006 | 1.50 ppb |
| 2019-07-11 | 35481752007 | 1.60 ppb |
| 2019-07-11 | 35481752008 | 1.70 ppb |
| 2019-10-15 | 35505751001 | 2.80 ppb |
| 2019-10-15 | 35505751002 | 3.20 ppb |
| 2019-10-15 | 35505751003 | 2.40 ppb |
| 2019-10-15 | 35505751004 | 3.00 ppb |
| 2019-10-15 | 35505751005 | 3.90 ppb |
| 2019-10-15 | 35505751006 | 2.30 ppb |
| 2019-10-15 | 35505751007 | 2.90 ppb |
| 2019-10-15 | 35505751008 | 2.10 ppb |
| 2019-10-15 | 35505751001 | 2.80 ppb |
| 2019-10-15 | 35505751002 | 3.20 ppb |
| 2019-10-15 | 35505751003 | 2.40 ppb |
| 2019-10-15 | 35505751004 | 3.00 ppb |
| 2019-10-15 | 35505751005 | 3.90 ppb |
| 2019-10-15 | 35505751006 | 2.30 ppb |
| 2019-10-15 | 35505751007 | 2.90 ppb |
| 2019-10-15 | 35505751008 | 2.10 ppb |
| 2020-01-17 | 35525781001 | 4.30 ppb |
| 2020-01-17 | 35525781002 | 3.80 ppb |
| 2020-01-17 | 35525781003 | 4.00 ppb |
| 2020-01-17 | 35525781004 | 3.80 ppb |
| 2020-01-17 | 35525781005 | 4.60 ppb |
| 2020-01-17 | 35525781006 | 3.80 ppb |
| 2020-01-17 | 35525781007 | 3.80 ppb |
| 2020-01-17 | 35525781008 | 3.80 ppb |
| 2020-04-23 | 35545804001 | 1.10 ppb |
| 2020-04-23 | 35545804002 | 0.880 ppb |
| 2020-04-23 | 35545804003 | 1.000 ppb |
| 2020-04-23 | 35545804004 | 0.970 ppb |
| 2020-04-23 | 35545804005 | 1.30 ppb |
| 2020-04-23 | 35545804006 | 1.000 ppb |
| 2020-04-23 | 35545804007 | 1.10 ppb |
| 2020-04-23 | 35545804008 | 0.970 ppb |
| 2020-07-17 | 35564196001 | 2.20 ppb |
| 2020-07-17 | 35564196002 | 2.40 ppb |
| 2020-07-17 | 35564196003 | 2.50 ppb |
| 2020-07-17 | 35564196004 | 2.70 ppb |
| 2020-07-17 | 35564196005 | 2.40 ppb |
| 2020-07-17 | 35564196006 | 1.70 ppb |
| 2020-07-17 | 35564196007 | 2.70 ppb |
| 2020-07-17 | 35564196008 | 2.50 ppb |
| 2020-10-22 | 35587098001 | 2.10 ppb |
| 2020-10-22 | 35587098002 | 2.20 ppb |
| 2020-10-22 | 35587098003 | 2.40 ppb |
| 2020-10-22 | 35587098004 | 1.80 ppb |
| 2020-10-22 | 35587098005 | 1.90 ppb |
| 2020-10-22 | 35587098006 | 2.00 ppb |
| 2020-10-22 | 35587098007 | 2.70 ppb |
| 2020-10-22 | 35587098008 | 1.90 ppb |
| 2021-01-14 | 35605079001 | 6.20 ppb |
| 2021-01-14 | 35605079002 | 7.20 ppb |
| 2021-01-14 | 35605079003 | 5.70 ppb |
| 2021-01-14 | 35605079004 | 6.10 ppb |
| 2021-01-14 | 35605079005 | 7.30 ppb |
| 2021-01-14 | 35605079006 | 5.70 ppb |
| 2021-01-14 | 35605079007 | 6.00 ppb |
| 2021-01-14 | 35605079008 | 6.10 ppb |
| 2021-04-22 | 35628251001 | 4.50 ppb |
| 2021-04-22 | 35628251002 | 3.90 ppb |
| 2021-04-22 | 35628251003 | 4.20 ppb |
| 2021-04-22 | 35628251004 | 4.70 ppb |
| 2021-04-22 | 35628251005 | 5.90 ppb |
| 2021-04-22 | 35628251006 | 4.30 ppb |
| 2021-04-22 | 35628251007 | 3.30 ppb |
| 2021-04-22 | 35628251008 | 4.40 ppb |
| 2021-07-23 | 35650336001 | 4.10 ppb |
| 2021-07-23 | 35650336002 | 4.40 ppb |
| 2021-07-23 | 35650336003 | 4.20 ppb |
| 2021-07-23 | 35650336004 | 4.80 ppb |
| 2021-07-23 | 35650336005 | 4.60 ppb |
| 2021-07-23 | 35650336006 | 2.70 ppb |
| 2021-07-23 | 35650336007 | 2.70 ppb |
| 2021-07-23 | 35650336008 | 3.10 ppb |
| 2021-10-28 | 35674062001 | 4.00 ppb |
| 2021-10-28 | 35674062002 | 4.40 ppb |
| 2021-10-28 | 35674062003 | 4.00 ppb |
| 2021-10-28 | 35674062004 | 4.50 ppb |
| 2021-10-28 | 35674062005 | 4.90 ppb |
| 2021-10-28 | 35674062006 | 4.50 ppb |
| 2021-10-28 | 35674062007 | 3.30 ppb |
| 2021-10-28 | 35674062008 | 3.40 ppb |
| 2022-01-25 | 35693393001 | 5.00 ppb |
| 2022-01-25 | 35693393002 | 5.10 ppb |
| 2022-01-25 | 35693393003 | 4.30 ppb |
| 2022-01-25 | 35693393004 | 4.90 ppb |
| 2022-01-25 | 35693393005 | 5.90 ppb |
| 2022-01-25 | 35693393006 | 4.70 ppb |
| 2022-01-25 | 35693393007 | 4.50 ppb |
| 2022-01-25 | 35693393008 | 4.60 ppb |
| 2022-04-08 | 35709551001 | 5.40 ppb |
| 2022-04-08 | 35709551002 | 5.90 ppb |
| 2022-04-08 | 35709551003 | 4.10 ppb |
| 2022-04-08 | 35709551004 | 5.00 ppb |
| 2022-04-08 | 35709551005 | 4.10 ppb |
| 2022-04-08 | 35709551006 | 3.90 ppb |
| 2022-04-08 | 35709551007 | 3.50 ppb |
| 2022-04-08 | 35709551008 | 4.60 ppb |
| 2022-07-28 | 35735273001 | 4.60 ppb |
| 2022-07-28 | 35735273002 | 4.90 ppb |
| 2022-07-28 | 35735273003 | 4.00 ppb |
| 2022-07-28 | 35735273004 | 5.60 ppb |
| 2022-07-28 | 35735273005 | 5.00 ppb |
| 2022-07-28 | 35735273006 | 4.30 ppb |
| 2022-07-28 | 35735273007 | 4.20 ppb |
| 2022-07-28 | 35735273008 | 4.20 ppb |
| 2022-08-16 | 35739922001 | 3.80 ppb |
| 2022-08-16 | 35739922002 | 4.40 ppb |
| 2022-08-16 | 35739922003 | 3.40 ppb |
| 2022-08-16 | 35739922004 | 4.10 ppb |
| 2022-08-16 | 35739922005 | 4.30 ppb |
| 2022-08-16 | 35739922006 | 3.40 ppb |
| 2022-08-16 | 35739922007 | 3.40 ppb |
| 2022-08-16 | 35739922008 | 3.80 ppb |
| 2022-10-20 | 35755557001 | 4.90 ppb |
| 2022-10-20 | 35755557002 | 5.20 ppb |
| 2022-10-20 | 35755557003 | 3.50 ppb |
| 2022-10-20 | 35755557004 | 4.50 ppb |
| 2022-10-20 | 35755557005 | 5.20 ppb |
| 2022-10-20 | 35755557006 | 4.40 ppb |
| 2022-10-20 | 35755557007 | 3.80 ppb |
| 2022-10-20 | 35755557008 | 3.70 ppb |
| 2023-01-05 | 35770758001 | 5.70 ppb |
| 2023-01-05 | 35770758002 | 6.50 ppb |
| 2023-01-05 | 35770758003 | 5.80 ppb |
| 2023-01-05 | 35770758004 | 5.60 ppb |
| 2023-01-05 | 35770758005 | 6.60 ppb |
| 2023-01-05 | 35770758006 | 5.30 ppb |
| 2023-01-05 | 35770758007 | 5.60 ppb |
| 2023-01-05 | 35770758008 | 5.40 ppb |
| 2023-04-13 | 35792659001 | 4.70 ppb |
| 2023-04-13 | 35792659002 | 5.10 ppb |
| 2023-04-13 | 35792659003 | 5.00 ppb |
| 2023-04-13 | 35792659004 | 4.80 ppb |
| 2023-04-13 | 35792659005 | 5.50 ppb |
| 2023-04-13 | 35792659006 | 4.80 ppb |
| 2023-04-13 | 35792659007 | 5.10 ppb |
| 2023-04-13 | 35792659008 | 4.90 ppb |
| 2023-07-13 | 35813160001 | 3.90 ppb |
| 2023-07-13 | 35813160002 | 3.10 ppb |
| 2023-07-13 | 35813160003 | 3.40 ppb |
| 2023-07-13 | 35813160004 | 4.20 ppb |
| 2023-07-13 | 35813160005 | 6.30 ppb |
| 2023-07-13 | 35813160006 | 6.50 ppb |
| 2023-07-13 | 35813160007 | 5.70 ppb |
| 2023-07-13 | 35813160008 | 4.60 ppb |
| 2023-10-05 | 35832718001 | 4.20 ppb |
| 2023-10-05 | 35832718002 | 5.70 ppb |
| 2023-10-05 | 35832718003 | 4.30 ppb |
| 2023-10-05 | 35832718004 | 3.80 ppb |
| 2023-10-05 | 35832718005 | 5.90 ppb |
| 2023-10-05 | 35832718006 | 4.00 ppb |
| 2023-10-05 | 35832718007 | 3.80 ppb |
| 2023-10-05 | 35832718008 | 3.70 ppb |