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EWG's Tap Water Database — 2021 UPDATE

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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.

MORE ABOUT THIS CONTAMINANT

 

160

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.08 ppb3223ND - 2.80 ppb
2015N/A00N/A
20161.38 ppb3223ND - 4.00 ppb
20171.04 ppb3216ND - 5.00 ppb
20181.16 ppb3225ND - 3.80 ppb
20190.925 ppb3223ND - 2.47 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 53 ppb

The EWG Health Guideline of 53 ppb for monochloroacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.. This health guideline protects against system toxicity.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-06E402330-1CHND
2014-02-06E402330-2CH1.10 ppb
2014-02-06E402330-3CH1.30 ppb
2014-02-06E402330-4CH1.20 ppb
2014-02-06E402330-5CH1.20 ppb
2014-02-06E402330-6CHND
2014-02-06E402330-7CHND
2014-02-06E402330-8CHND
2014-05-01E405079-1CH1.10 ppb
2014-05-01E405079-2CH1.20 ppb
2014-05-01E405079-3CH1.20 ppb
2014-05-01E405079-4CHND
2014-05-01E405079-5CH1.10 ppb
2014-05-01E405079-6CH1.10 ppb
2014-05-01E405079-7CHND
2014-05-01E405079-8CH1.30 ppb
2014-08-01E408040-1GE2.40 ppb
2014-08-01E408040-2GE2.80 ppb
2014-08-01E408040-3GE1.30 ppb
2014-08-01E408040-4GEND
2014-08-01E408040-5GEND
2014-08-01E408040-6GE2.30 ppb
2014-08-01E408040-7GE2.50 ppb
2014-08-01E408040-8GE1.80 ppb
2014-11-05E411346-1GE1.40 ppb
2014-11-05E411346-2GE1.50 ppb
2014-11-05E411346-3GE1.30 ppb
2014-11-05E411346-4GE1.30 ppb
2014-11-05E411346-5GE1.10 ppb
2014-11-05E411346-6GE1.70 ppb
2014-11-05E411346-7GE1.40 ppb
2014-11-05E411346-8GEND
2016-02-11E602C26-1GE1.70 ppb
2016-02-11E602C26-2GE1.30 ppb
2016-02-11E602C26-3GE1.20 ppb
2016-02-11E602C26-4GE1.30 ppb
2016-02-11E602C26-5GE2.50 ppb
2016-02-11E602C26-6GE1.20 ppb
2016-02-11E602C26-7GE1.40 ppb
2016-02-11E602C26-8GE1.50 ppb
2016-05-12E605F87-1GEND
2016-05-12E605F87-2GE1.20 ppb
2016-05-12E605F87-3GEND
2016-05-12E605F87-4GEND
2016-05-12E605F87-5GEND
2016-05-12E605F87-6GE1.20 ppb
2016-05-12E605F87-7GEND
2016-05-12E605F87-8GEND
2016-08-04E608718-1GE3.60 ppb
2016-08-04E608718-2GE4.00 ppb
2016-08-04E608718-3GEND
2016-08-04E608718-4GEND
2016-08-04E608718-5GE1.10 ppb
2016-08-04E608718-6GE1.20 ppb
2016-08-04E608718-7GE2.50 ppb
2016-08-04E608718-8GE3.30 ppb
2016-11-03E611421-1GE1.90 ppb
2016-11-03E611421-2GEND
2016-11-03E611421-3GE2.30 ppb
2016-11-03E611421-4GE1.70 ppb
2016-11-03E611421-5GE2.80 ppb
2016-11-03E611421-6GE1.70 ppb
2016-11-03E611421-7GE2.00 ppb
2016-11-03E611421-8GE1.60 ppb
2017-02-06E702378-1GEND
2017-02-06E702378-2GEND
2017-02-06E702378-3GEND
2017-02-06E702378-4GEND
2017-02-06E702378-5GEND
2017-02-06E702378-6GEND
2017-02-06E702378-7GEND
2017-02-06E702378-8GEND
2017-05-04D7E0517-01HA51.20 ppb
2017-05-04D7E0517-02HA51.20 ppb
2017-05-04D7E0517-03HA51.20 ppb
2017-05-04D7E0517-04HA5ND
2017-05-04D7E0517-05HA5ND
2017-05-04D7E0517-06HA5ND
2017-05-04D7E0517-07HA5ND
2017-05-04D7E0517-08HA5ND
2017-08-04D7H0571-01HA52.50 ppb
2017-08-04D7H0571-02HA55.00 ppb
2017-08-04D7H0571-03HA52.90 ppb
2017-08-04D7H0571-04HA52.20 ppb
2017-08-04D7H0571-05HA51.70 ppb
2017-08-04D7H0571-06HA51.10 ppb
2017-08-04D7H0571-07HA51.80 ppb
2017-08-04D7H0571-08HA51.40 ppb
2017-11-01D7K0019-01HA51.90 ppb
2017-11-01D7K0019-02HA51.80 ppb
2017-11-01D7K0019-03HA52.30 ppb
2017-11-01D7K0019-04HA5ND
2017-11-01D7K0019-05HA5ND
2017-11-01D7K0019-06HA5ND
2017-11-01D7K0019-07HA53.20 ppb
2017-11-01D7K0019-08HA51.90 ppb
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