Bromochloroacetic acid
City of Redmond Water System
Bromochloroacetic acid is formed when chlorine or other disinfectants are used to treat drinking water. Bromochloroacetic acid and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy.
160
Samples
0
Samples exceeding legal limit (MCL)
32
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 0.298 ppb | 32 | 6 | ND - 2.30 ppb |
| 2019 | 0.299 ppb | 32 | 6 | ND - 1.88 ppb |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | 0.358 ppb | 32 | 7 | ND - 2.66 ppb |
| 2022 | 0.234 ppb | 32 | 5 | ND - 2.27 ppb |
| 2023 | 0.369 ppb | 32 | 8 | ND - 2.05 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.02 ppb
The EWG Health Guideline of 0.02 ppb for bromochloroacetic acid was defined in a peer-reviewed scientific study by EWG and represents a on-in-a-million lifetime cancer risk level. This health guideline protects against cancer.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-10 | ND | |
| 2018-01-10 | ND | |
| 2018-01-10 | 1.48 ppb | |
| 2018-01-10 | ND | |
| 2018-01-10 | ND | |
| 2018-01-10 | ND | |
| 2018-01-10 | ND | |
| 2018-01-10 | ND | |
| 2018-04-04 | ND | |
| 2018-04-04 | ND | |
| 2018-04-04 | 1.84 ppb | |
| 2018-04-04 | ND | |
| 2018-04-04 | ND | |
| 2018-04-04 | ND | |
| 2018-04-04 | ND | |
| 2018-04-04 | 1.20 ppb | |
| 2018-07-03 | ND | |
| 2018-07-03 | ND | |
| 2018-07-03 | 2.30 ppb | |
| 2018-07-03 | ND | |
| 2018-07-03 | ND | |
| 2018-07-03 | ND | |
| 2018-07-03 | ND | |
| 2018-07-03 | 1.17 ppb | |
| 2018-10-03 | ND | |
| 2018-10-03 | ND | |
| 2018-10-03 | 1.56 ppb | |
| 2018-10-03 | ND | |
| 2018-10-03 | ND | |
| 2018-10-03 | ND | |
| 2018-10-03 | ND | |
| 2018-10-03 | ND | |
| 2019-01-09 | ND | |
| 2019-01-09 | ND | |
| 2019-01-09 | 1.83 ppb | |
| 2019-01-09 | ND | |
| 2019-01-09 | ND | |
| 2019-01-09 | ND | |
| 2019-01-09 | ND | |
| 2019-01-09 | ND | |
| 2019-04-03 | ND | |
| 2019-04-03 | ND | |
| 2019-04-03 | 1.74 ppb | |
| 2019-04-03 | ND | |
| 2019-04-03 | ND | |
| 2019-04-03 | ND | |
| 2019-04-03 | ND | |
| 2019-04-03 | 1.20 ppb | |
| 2019-07-01 | ND | |
| 2019-07-01 | ND | |
| 2019-07-01 | 1.85 ppb | |
| 2019-07-01 | ND | |
| 2019-07-01 | ND | |
| 2019-07-01 | ND | |
| 2019-07-01 | ND | |
| 2019-07-01 | 1.06 ppb | |
| 2019-10-02 | ND | |
| 2019-10-02 | ND | |
| 2019-10-02 | 1.88 ppb | |
| 2019-10-02 | ND | |
| 2019-10-02 | ND | |
| 2019-10-02 | ND | |
| 2019-10-02 | ND | |
| 2019-10-02 | ND | |
| 2021-01-06 | 4064265 | 1.20 ppb |
| 2021-01-06 | 4064264 | ND |
| 2021-01-06 | 4064266 | ND |
| 2021-01-06 | 4064259 | ND |
| 2021-01-06 | 4064260 | ND |
| 2021-01-06 | 4064263 | ND |
| 2021-01-06 | 4064261 | 1.88 ppb |
| 2021-01-06 | 4064262 | ND |
| 2021-04-07 | 4101585 | 1.59 ppb |
| 2021-04-07 | 4101584 | ND |
| 2021-04-07 | 4101590 | ND |
| 2021-04-07 | 4101588 | ND |
| 2021-04-07 | 4101583 | ND |
| 2021-04-07 | 4101586 | ND |
| 2021-04-07 | 4101587 | ND |
| 2021-04-07 | 4101589 | 1.04 ppb |
| 2021-07-07 | 4172254 | ND |
| 2021-07-07 | 4172252 | ND |
| 2021-07-07 | 4172248 | ND |
| 2021-07-07 | 4172250 | ND |
| 2021-07-07 | 4172247 | ND |
| 2021-07-07 | 4172249 | 2.66 ppb |
| 2021-07-07 | 4172251 | ND |
| 2021-07-07 | 4172253 | 1.60 ppb |
| 2021-10-06 | 4195668 | ND |
| 2021-10-06 | 4195667 | ND |
| 2021-10-06 | 4195674 | ND |
| 2021-10-06 | 4195670 | ND |
| 2021-10-06 | 4195669 | 1.49 ppb |
| 2021-10-06 | 4195673 | ND |
| 2021-10-06 | 4195672 | ND |
| 2021-10-06 | 4195671 | ND |
| 2022-01-12 | 4230035 | 1.46 ppb |
| 2022-01-12 | 4230037 | ND |
| 2022-01-12 | 4230039 | 1.44 ppb |
| 2022-01-12 | 4230040 | ND |
| 2022-01-12 | 4230033 | ND |
| 2022-01-12 | 4230034 | ND |
| 2022-01-12 | 4230038 | ND |
| 2022-01-12 | 4230036 | ND |
| 2022-04-06 | 4270490 | ND |
| 2022-04-06 | 4270486 | ND |
| 2022-04-06 | 4270488 | ND |
| 2022-04-06 | 4270491 | ND |
| 2022-04-06 | 4270492 | ND |
| 2022-04-06 | 4270489 | ND |
| 2022-04-06 | 4270487 | ND |
| 2022-04-06 | 4270493 | ND |
| 2022-07-06 | 4310232 | ND |
| 2022-07-06 | 4310228 | ND |
| 2022-07-06 | 4310230 | ND |
| 2022-07-06 | 4310227 | ND |
| 2022-07-06 | 4310233 | 1.30 ppb |
| 2022-07-06 | 4310234 | ND |
| 2022-07-06 | 4310229 | 2.27 ppb |
| 2022-07-06 | 4310231 | ND |
| 2022-10-05 | 4361915 | 1.01 ppb |
| 2022-10-05 | 4361913 | ND |
| 2022-10-05 | 4361917 | ND |
| 2022-10-05 | 4361919 | ND |
| 2022-10-05 | 4361918 | ND |
| 2022-10-05 | 4361920 | ND |
| 2022-10-05 | 4361916 | ND |
| 2022-10-05 | 4361914 | ND |
| 2023-01-03 | 4397663 | ND |
| 2023-01-03 | 4397661 | ND |
| 2023-01-03 | 4397666 | 1.48 ppb |
| 2023-01-03 | 4397662 | 1.60 ppb |
| 2023-01-03 | 4397664 | ND |
| 2023-01-03 | 4397667 | ND |
| 2023-01-03 | 4397665 | ND |
| 2023-01-03 | 4397660 | ND |
| 2023-04-07 | 4442026 | ND |
| 2023-04-07 | 4442024 | ND |
| 2023-04-07 | 4442022 | ND |
| 2023-04-07 | 4442028 | ND |
| 2023-04-07 | 4442021 | ND |
| 2023-04-07 | 4442023 | 1.68 ppb |
| 2023-04-07 | 4442025 | ND |
| 2023-04-07 | 4442027 | 1.30 ppb |
| 2023-07-07 | 4482763 | ND |
| 2023-07-07 | 4482757 | ND |
| 2023-07-07 | 4482758 | ND |
| 2023-07-07 | 4482760 | ND |
| 2023-07-07 | 4482762 | ND |
| 2023-07-07 | 4482764 | ND |
| 2023-07-07 | 4482759 | 2.05 ppb |
| 2023-07-07 | 4482761 | ND |
| 2023-10-02 | 4529330 | 1.04 ppb |
| 2023-10-02 | 4529332 | ND |
| 2023-10-02 | 4529328 | ND |
| 2023-10-02 | 4529327 | 1.05 ppb |
| 2023-10-02 | 4529329 | 1.60 ppb |
| 2023-10-02 | 4529334 | ND |
| 2023-10-02 | 4529331 | ND |
| 2023-10-02 | 4529333 | ND |