Know Your Environment. Protect Your Health.

Monochloroacetic acid

Bristol Water Department

Monochloroacetic 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.

 

192

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.16 ppb3225ND - 3.80 ppb
20190.925 ppb3223ND - 2.47 ppb
20200.179 ppb324ND - 1.74 ppb
20210.872 ppb3217ND - 2.49 ppb
20220.633 ppb3211ND - 3.42 ppb
20230.418 ppb329ND - 1.68 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 53 ppb

The EWG Health Guideline of 53 ppb for monochloroacetic 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.a public health goal. This health guideline protects against change to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-01D8B0050-01HA51.40 ppb
2018-02-01D8B0050-02HA51.20 ppb
2018-02-01D8B0050-03HA52.20 ppb
2018-02-01D8B0050-04HA51.80 ppb
2018-02-01D8B0050-05HA51.20 ppb
2018-02-01D8B0050-06HA51.10 ppb
2018-02-01D8B0050-07HA51.10 ppb
2018-02-01D8B0050-08HA51.10 ppb
2018-05-02D8E0293-01HA51.10 ppb
2018-05-02D8E0293-02HA51.40 ppb
2018-05-02D8E0293-03HA52.30 ppb
2018-05-02D8E0293-04HA52.30 ppb
2018-05-02D8E0293-05HA51.20 ppb
2018-05-02D8E0293-06HA51.40 ppb
2018-05-02D8E0293-07HA51.20 ppb
2018-05-02D8E0293-08HA51.50 ppb
2018-08-03D8H0465-01HA51.50 ppb
2018-08-03D8H0465-02HA51.30 ppb
2018-08-03D8H0465-03HA50.900 ppb
2018-08-03D8H0465-04HA50.900 ppb
2018-08-03D8H0465-05HA50.800 ppb
2018-08-03D8H0465-06HA5ND
2018-08-03D8H0465-07HA50.900 ppb
2018-08-03D8H0465-08HA52.30 ppb
2018-11-21D8K2218-01HA51.20 ppb
2018-11-21D8K2218-02HA5ND
2018-11-21D8K2218-03HA5ND
2018-11-21D8K2218-04HA5ND
2018-11-21D8K2218-05HA5ND
2018-11-21D8K2218-06HA5ND
2018-11-21D8K2218-07HA5ND
2018-11-21D8K2218-08HA53.80 ppb
2019-02-07D9B0625-01HA51.04 ppb
2019-02-07D9B0625-02HA50.916 ppb
2019-02-07D9B0625-03HA51.02 ppb
2019-02-07D9B0625-04HA50.803 ppb
2019-02-07D9B0625-05HA51.71 ppb
2019-02-07D9B0625-06HA50.681 ppb
2019-02-07D9B0625-07HA50.726 ppb
2019-02-07D9B0625-08HA50.625 ppb
2019-05-16D9E1857-01HA51.45 ppb
2019-05-16D9E1857-02HA50.795 ppb
2019-05-16D9E1857-03HA50.863 ppb
2019-05-16D9E1857-04HA51.03 ppb
2019-05-16D9E1857-05HA5ND
2019-05-16D9E1857-06HA51.05 ppb
2019-05-16D9E1857-07HA51.04 ppb
2019-05-16D9E1857-08HA51.36 ppb
2019-08-22D9H2728-01HA51.92 ppb
2019-08-22D9H2728-02HA51.94 ppb
2019-08-22D9H2728-03HA51.42 ppb
2019-08-22D9H2728-04HA51.99 ppb
2019-08-22D9H2728-05HA51.67 ppb
2019-08-22D9H2728-06HA51.55 ppb
2019-08-22D9H2728-07HA52.47 ppb
2019-08-22D9H2728-08HA51.53 ppb
2019-11-20D9K1863-01HA5ND
2019-11-20D9K1863-03HA5ND
2019-11-20D9K1863-04HA5ND
2019-11-20D9K1863-05HA5ND
2019-11-20D9K1863-08HA5ND
2019-12-10D9L0753-01HA5ND
2019-12-10D9L0753-02HA5ND
2019-12-10D9L0753-03HA5ND
2020-02-07D0B0593-01HA5ND
2020-02-07D0B0593-02HA5ND
2020-02-07D0B0593-03HA5ND
2020-02-07D0B0593-04HA5ND
2020-02-07D0B0593-05HA5ND
2020-02-07D0B0593-06HA5ND
2020-02-07D0B0593-08HA5ND
2020-02-07D0B0593-07HA5ND
2020-04-15D0D1376-01HA5ND
2020-04-15D0D1376-02HA5ND
2020-04-15D0D1376-03HA5ND
2020-04-15D0D1376-04HA51.74 ppb
2020-04-15D0D1376-05HA5ND
2020-04-15D0D1376-06HA5ND
2020-04-15D0D1376-07RE1HA51.43 ppb
2020-04-15D0D1376-08RE1HA5ND
2020-08-13D0H1367-01HA51.30 ppb
2020-08-13D0H1367-02HA51.25 ppb
2020-08-13D0H1367-03HA5ND
2020-08-13D0H1367-04HA5ND
2020-08-13D0H1367-05HA5ND
2020-08-13D0H1367-06HA5ND
2020-08-13D0H1367-07HA5ND
2020-08-13D0H1367-08HA5ND
2020-11-18D0K1639-01HA5ND
2020-11-18D0K1639-02HA5ND
2020-11-18D0K1639-03HA5ND
2020-11-18D0K1639-04HA5ND
2020-11-18D0K1639-05HA5ND
2020-11-18D0K1639-06HA5ND
2020-11-18D0K1639-07HA5ND
2020-11-18D0K1639-08HA5ND
2021-02-11D1B1051-01HA51.66 ppb
2021-02-11D1B1051-02HA51.81 ppb
2021-02-11D1B1051-03HA51.45 ppb
2021-02-11D1B1051-04HA5ND
2021-02-11D1B1051-05HA52.14 ppb
2021-02-11D1B1051-06HA51.11 ppb
2021-02-11D1B1051-07HA5ND
2021-02-11D1B1051-08HA52.22 ppb
2021-05-12D1E1461-01HA5ND
2021-05-12D1E1461-02HA5ND
2021-05-12D1E1461-03HA5ND
2021-05-12D1E1461-04HA5ND
2021-05-12D1E1461-05HA5ND
2021-05-12D1E1461-06HA5ND
2021-05-12D1E1461-07HA5ND
2021-05-21D1E2270-01HA51.61 ppb
2021-08-11D1H1184-01HA52.44 ppb
2021-08-11D1H1184-02HA52.03 ppb
2021-08-11D1H1184-03HA5ND
2021-08-11D1H1184-04HA5ND
2021-08-11D1H1184-05HA5ND
2021-08-11D1H1184-06HA5ND
2021-08-11D1H1184-07HA52.49 ppb
2021-08-11D1H1184-08HA52.05 ppb
2021-11-10D1K0958-01HA51.42 ppb
2021-11-10D1K0958-02HA51.11 ppb
2021-11-10D1K0958-03HA51.04 ppb
2021-11-10D1K0958-04HA51.02 ppb
2021-11-10D1K0958-05HA51.19 ppb
2021-11-10D1K0958-06HA5ND
2021-11-10D1K0958-07HA51.13 ppb
2021-11-10D1K0958-08HA5ND
2022-02-03D2B0370-01HA5ND
2022-02-03D2B0370-02HA5ND
2022-02-03D2B0370-03HA5ND
2022-02-03D2B0370-04HA51.01 ppb
2022-02-03D2B0370-05HA5ND
2022-02-03D2B0370-06HA5ND
2022-02-03D2B0370-07HA5ND
2022-02-03D2B0370-08HA5ND
2022-05-18D2E1713-01HA51.33 ppb
2022-05-18D2E1713-02HA51.47 ppb
2022-05-18D2E1713-03HA51.41 ppb
2022-05-18D2E1713-04HA5ND
2022-05-18D2E1713-05HA5ND
2022-05-18D2E1713-06HA5ND
2022-05-18D2E1713-07HA51.15 ppb
2022-05-18D2E1713-08HA5ND
2022-08-12D2H1764-01HA53.42 ppb
2022-08-12D2H1764-02HA5ND
2022-08-12D2H1764-03HA5ND
2022-08-12D2H1764-04HA51.75 ppb
2022-08-12D2H1764-05HA5ND
2022-08-12D2H1764-06HA51.34 ppb
2022-08-12D2H1764-07HA52.66 ppb
2022-08-12D2H1764-08HA52.93 ppb
2022-11-21D2K1963-01HA5ND
2022-11-21D2K1963-02HA5ND
2022-11-21D2K1963-03HA5ND
2022-11-21D2K1963-04HA5ND
2022-11-21D2K1963-05HA5ND
2022-11-21D2K1963-06HA5ND
2022-11-21D2K1963-07HA5ND
2022-11-21D2K1963-08HA51.79 ppb
2023-02-09D3B1063-01REHA5ND
2023-02-09D3B1063-02REHA5ND
2023-02-09D3B1063-03REHA5ND
2023-02-09D3B1063-04HA5ND
2023-02-09D3B1063-05HA5ND
2023-02-09D3B1063-06HA5ND
2023-02-09D3B1063-07HA5ND
2023-02-09D3B1063-08HA5ND
2023-05-10D3E1137-01HA51.35 ppb
2023-05-10D3E1137-02HA51.60 ppb
2023-05-10D3E1137-03HA51.53 ppb
2023-05-10D3E1137-04HA5ND
2023-05-10D3E1137-05HA5ND
2023-05-10D3E1137-06HA51.34 ppb
2023-05-10D3E1137-07HA51.45 ppb
2023-05-10D3E1137-08HA51.47 ppb
2023-08-16D3H2326-01HA5ND
2023-08-16D3H2326-02HA5ND
2023-08-16D3H2326-03HA5ND
2023-08-16D3H2326-04HA5ND
2023-08-16D3H2326-05HA5ND
2023-08-16D3H2326-06HA5ND
2023-08-16D3H2326-07HA5ND
2023-08-16D3H2326-08HA51.68 ppb
2023-11-16D3K1914-01HA5ND
2023-11-16D3K1914-02HA5ND
2023-11-16D3K1914-03HA5ND
2023-11-16D3K1914-04HA5ND
2023-11-16D3K1914-05HA5ND
2023-11-16D3K1914-06HA5ND
2023-11-16D3K1914-07HA51.28 ppb
2023-11-16D3K1914-08HA51.67 ppb