Butylated hydroxyanisole
CTWC - Unionville System
NOTE: CTWC - Unionville System purchases water from Metropolitan District Commission which is required to test for butylated hydroxyanisole . Sample information shown below was taken by Metropolitan District Commission.
Butylated hydroxyanisole, or BHA, is used as a food preservative. The chemical is considered a possible human carcinogen and classified by the European Union as an endocrine disruptor.
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 | N/A | 0 | 0 | N/A |
| 2019 | ND | 9 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
NOTE: CTWC - Unionville System purchases water from Metropolitan District Commission which is required to test for butylated hydroxyanisole . Sample information shown below was taken by Metropolitan District Commission.
| Date | Lab ID | Result |
|---|---|---|
| 2019-05-06 | 9050491-01C | ND |
| 2019-05-06 | 9050491-02C | ND |
| 2019-05-06 | 9050491-03C | ND |
| 2019-08-05 | 9081032-01C | ND |
| 2019-08-05 | 9081032-02C | ND |
| 2019-08-05 | 9081032-03C | ND |
| 2019-11-04 | 9110531-01C | ND |
| 2019-11-04 | 9110531-02C | ND |
| 2019-11-04 | 9110531-03C | ND |
| 2020-02-03 | 0020002-02C | ND |
| 2020-02-03 | 0020002-03C | ND |
| 2020-03-09 | 0031729-01C | ND |