Dibromoacetic acid
LPWDN North Region
Dibromoacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids 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 | 0.927 ppb | 32 | 30 | ND - 2.00 ppb |
| 2019 | 0.551 ppb | 32 | 20 | ND - 1.80 ppb |
| 2020 | 0.493 ppb | 16 | 11 | ND - 0.920 ppb |
| 2021 | 0.258 ppb | 16 | 6 | ND - 0.930 ppb |
| 2022 | 0.404 ppb | 16 | 8 | ND - 1.000 ppb |
| 2023 | 0.270 ppb | 16 | 6 | ND - 1.000 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.03 ppb
The EWG Health Guideline of 0.03 ppb for dibromoacetic acid was defined by 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 |
|---|---|---|
| 2018-03-09 | 35379278001 | 0.560 ppb |
| 2018-03-09 | 35379278002 | 0.410 ppb |
| 2018-03-09 | 35379278003 | 0.460 ppb |
| 2018-03-09 | 35379278004 | 1.30 ppb |
| 2018-03-09 | 35379278001 | 0.560 ppb |
| 2018-03-09 | 35379278002 | 0.410 ppb |
| 2018-03-09 | 35379278003 | 0.460 ppb |
| 2018-03-09 | 35379278004 | 1.30 ppb |
| 2018-06-15 | 35398716001 | 0.540 ppb |
| 2018-06-15 | 35398716002 | 0.660 ppb |
| 2018-06-15 | 35398716003 | 0.770 ppb |
| 2018-06-15 | 35398716004 | 2.00 ppb |
| 2018-06-15 | 35398716001 | 0.540 ppb |
| 2018-06-15 | 35398716002 | 0.660 ppb |
| 2018-06-15 | 35398716003 | 0.770 ppb |
| 2018-06-15 | 35398716004 | 2.00 ppb |
| 2018-09-12 | 35418015001 | 0.780 ppb |
| 2018-09-12 | 35418015002 | 0.910 ppb |
| 2018-09-12 | 35418015003 | 0.820 ppb |
| 2018-09-12 | 35418015004 | 2.00 ppb |
| 2018-09-12 | 35418015001 | 0.780 ppb |
| 2018-09-12 | 35418015002 | 0.910 ppb |
| 2018-09-12 | 35418015003 | 0.820 ppb |
| 2018-09-12 | 35418015004 | 2.00 ppb |
| 2018-12-13 | 35437382001 | ND |
| 2018-12-13 | 35437382002 | 0.850 ppb |
| 2018-12-13 | 35437382003 | 0.970 ppb |
| 2018-12-13 | 35437382004 | 1.80 ppb |
| 2018-12-13 | 35437382001 | ND |
| 2018-12-13 | 35437382002 | 0.850 ppb |
| 2018-12-13 | 35437382003 | 0.970 ppb |
| 2018-12-13 | 35437382004 | 1.80 ppb |
| 2019-03-14 | 35454620001 | 0.820 ppb |
| 2019-03-14 | 35454620002 | 0.920 ppb |
| 2019-03-14 | 35454620003 | 0.970 ppb |
| 2019-03-14 | 35454620004 | 1.80 ppb |
| 2019-03-14 | 35454620001 | 0.820 ppb |
| 2019-03-14 | 35454620002 | 0.920 ppb |
| 2019-03-14 | 35454620003 | 0.970 ppb |
| 2019-03-14 | 35454620004 | 1.80 ppb |
| 2019-06-14 | 35475666001 | 0.940 ppb |
| 2019-06-14 | 35475666002 | 0.690 ppb |
| 2019-06-14 | 35475666003 | 0.800 ppb |
| 2019-06-14 | 35475666004 | 0.680 ppb |
| 2019-06-14 | 35475666001 | 0.940 ppb |
| 2019-06-14 | 35475666002 | 0.690 ppb |
| 2019-06-14 | 35475666003 | 0.800 ppb |
| 2019-06-14 | 35475666004 | 0.680 ppb |
| 2019-09-12 | 35497788001 | ND |
| 2019-09-12 | 35497788002 | 0.570 ppb |
| 2019-09-12 | 35497788003 | 0.620 ppb |
| 2019-09-12 | 35497788004 | ND |
| 2019-09-12 | 35497788001 | ND |
| 2019-09-12 | 35497788002 | 0.570 ppb |
| 2019-09-12 | 35497788003 | 0.620 ppb |
| 2019-09-12 | 35497788004 | ND |
| 2019-12-12 | 35518909001 | ND |
| 2019-12-12 | 35518909002 | ND |
| 2019-12-12 | 35518909003 | ND |
| 2019-12-12 | 35518909004 | ND |
| 2019-12-12 | 35518909001 | ND |
| 2019-12-12 | 35518909002 | ND |
| 2019-12-12 | 35518909003 | ND |
| 2019-12-12 | 35518909004 | ND |
| 2020-03-06 | 35535919001 | ND |
| 2020-03-06 | 35535919002 | ND |
| 2020-03-06 | 35535919003 | ND |
| 2020-03-06 | 35535919004 | ND |
| 2020-06-05 | 35554826001 | 0.650 ppb |
| 2020-06-05 | 35554826002 | 0.450 ppb |
| 2020-06-05 | 35554826003 | 0.490 ppb |
| 2020-06-05 | 35554826004 | ND |
| 2020-09-11 | 35577343001 | 0.890 ppb |
| 2020-09-11 | 35577343002 | 0.740 ppb |
| 2020-09-11 | 35577343003 | 0.810 ppb |
| 2020-09-11 | 35577343004 | 0.670 ppb |
| 2020-12-10 | 35598521001 | 0.920 ppb |
| 2020-12-10 | 35598521002 | 0.740 ppb |
| 2020-12-10 | 35598521003 | 0.840 ppb |
| 2020-12-10 | 35598521004 | 0.680 ppb |
| 2021-03-11 | 35618932001 | ND |
| 2021-03-11 | 35618932002 | ND |
| 2021-03-11 | 35618932003 | ND |
| 2021-03-11 | 35618932004 | ND |
| 2021-06-10 | 35640311001 | 0.590 ppb |
| 2021-06-10 | 35640311002 | ND |
| 2021-06-10 | 35640311003 | ND |
| 2021-06-10 | 35640311004 | ND |
| 2021-09-02 | 35661610001 | 0.930 ppb |
| 2021-09-02 | 35661610002 | 0.670 ppb |
| 2021-09-02 | 35661610003 | 0.700 ppb |
| 2021-09-02 | 35661610004 | 0.640 ppb |
| 2021-12-03 | 35681926001 | 0.600 ppb |
| 2021-12-03 | 35681926002 | ND |
| 2021-12-03 | 35681926003 | ND |
| 2021-12-03 | 35681926004 | ND |
| 2022-03-03 | 35701450001 | 1.000 ppb |
| 2022-03-03 | 35701450002 | 0.820 ppb |
| 2022-03-03 | 35701450003 | 0.880 ppb |
| 2022-03-03 | 35701450004 | 0.800 ppb |
| 2022-06-03 | 35722432001 | 0.710 ppb |
| 2022-06-03 | 35722432002 | ND |
| 2022-06-03 | 35722432003 | ND |
| 2022-06-03 | 35722432004 | ND |
| 2022-09-01 | 35744339001 | 0.680 ppb |
| 2022-09-01 | 35744339002 | ND |
| 2022-09-01 | 35744339003 | ND |
| 2022-09-01 | 35744339004 | ND |
| 2022-12-01 | 35763803001 | 0.800 ppb |
| 2022-12-01 | 35763803002 | ND |
| 2022-12-01 | 35763803003 | 0.770 ppb |
| 2022-12-01 | 35763803004 | ND |
| 2023-03-07 | 35784263001 | ND |
| 2023-03-07 | 35784263002 | ND |
| 2023-03-07 | 35784263003 | ND |
| 2023-03-07 | 35784263004 | ND |
| 2023-06-06 | 35804884001 | 1.000 ppb |
| 2023-06-06 | 35804884002 | 0.810 ppb |
| 2023-06-06 | 35804884003 | 0.620 ppb |
| 2023-06-06 | 35804884004 | ND |
| 2023-09-13 | 35828146001 | 0.760 ppb |
| 2023-09-13 | 35828146002 | 0.500 ppb |
| 2023-09-13 | 35828146003 | 0.630 ppb |
| 2023-09-13 | 35828146004 | ND |
| 2023-12-11 | 35847846001 | ND |
| 2023-12-11 | 35847846002 | ND |
| 2023-12-11 | 35847846003 | ND |
| 2023-12-11 | 35847846004 | ND |