Know Your Environment. Protect Your Health.

Monochloroacetic acid

CTWC - Shoreline Region-Guilford System

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.

 

96

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0938 ppb162ND - 0.900 ppb
2019ND160ND
20200.181 ppb165ND - 0.700 ppb
20210.506 ppb1612ND - 0.830 ppb
20220.469 ppb162ND - 4.20 ppb
2023ND160ND

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
2018-03-15CA03074HAA5ND
2018-03-15CA03075HAA5ND
2018-03-15CA03076HAA5ND
2018-03-15CA03073HAA5ND
2018-06-26CA80045HAA5ND
2018-06-26CA80046HAA5ND
2018-06-26CA80047HAA5ND
2018-06-26CA80048HAA5ND
2018-09-12DBP 2005050420.900 ppb
2018-09-12DBP 200505043ND
2018-09-12DBP 2005050440.600 ppb
2018-09-12DBP 200505047ND
2018-12-17DBP 200516237ND
2018-12-17DBP 200516239ND
2018-12-17DBP 200516238ND
2018-12-17DBP 200516235ND
2019-03-11DBP 200524150ND
2019-03-11DBP 200524151ND
2019-03-11DBP 200524152ND
2019-03-11DBP 200524154ND
2019-06-14DBP 200536672ND
2019-06-14DBP 200536674ND
2019-06-14DBP 200536680ND
2019-06-14DBP 200536682ND
2019-09-17DBP 200549479ND
2019-09-17DBP 200549481ND
2019-09-17DBP 200549480ND
2019-09-17DBP 200549478ND
2019-12-10DBP 200559643ND
2019-12-10DBP 200559644ND
2019-12-10DBP 200559645ND
2019-12-10DBP 200559642ND
2020-03-03DBP 200567998ND
2020-03-05DBP 200568574ND
2020-03-05DBP 200568575ND
2020-03-05DBP 200568576ND
2020-06-16DBP 2005795460.600 ppb
2020-06-16DBP 2005795470.500 ppb
2020-06-16DBP 2005795450.600 ppb
2020-06-16DBP 2005795430.500 ppb
2020-09-17DBP 200591051ND
2020-09-17DBP 200591052ND
2020-09-17DBP 200591053ND
2020-09-17DBP 200591054ND
2020-12-22DBP 200602030ND
2020-12-22DBP 2006020310.700 ppb
2020-12-22DBP 200602032ND
2020-12-22DBP 200602033ND
2021-03-15DBP 2006098450.600 ppb
2021-03-15DBP 200609842ND
2021-03-15DBP 200609843ND
2021-03-15DBP 2006098440.500 ppb
2021-06-02DBP 2006192640.700 ppb
2021-06-02DBP 2006192650.600 ppb
2021-06-02DBP 2006192660.700 ppb
2021-06-02DBP 2006192630.700 ppb
2021-09-14300059734 3000597380.830 ppb
2021-09-14300059735 3000597400.770 ppb
2021-09-14300059736 300059742ND
2021-09-14300059737 300059744ND
2021-12-09D300117675 3001176820.600 ppb
2021-12-09D300117674 3001176800.700 ppb
2021-12-09D300117673 3001176780.700 ppb
2021-12-09D300117672 3001176760.700 ppb
2022-03-09CK83519ND
2022-03-09CK83520ND
2022-03-09CK83521ND
2022-03-25CK95230ND
2022-06-16CL58844ND
2022-06-16CL588453.30 ppb
2022-06-16CL588464.20 ppb
2022-06-16CL58847ND
2022-09-13CM30714ND
2022-09-13CM30696ND
2022-09-13CM30695ND
2022-09-13CM30697ND
2022-12-01CM97587ND
2022-12-01CM97588ND
2022-12-01CM97589ND
2022-12-01CM97590ND
2023-03-22CN66487ND
2023-03-22CN66488ND
2023-03-22CN66489ND
2023-03-22CN66490ND
2023-06-15CO31997ND
2023-06-15CO31999ND
2023-06-15CO31998ND
2023-06-15CO31996ND
2023-09-05CO90683ND
2023-09-05CO90684ND
2023-09-05CO90685ND
2023-09-05CO90686ND
2023-12-07CP65078ND
2023-12-07CP65079ND
2023-12-07CP65080ND
2023-12-07CP65081ND