Monochloroacetic acid
Montgomery County Municipal Utility District 127
NOTE: Montgomery County Municipal Utility District 127 purchases water from Montgomery County Municipal Utility District 115 which is required to test for monochloroacetic acid. Sample information shown below was taken by Montgomery County Municipal Utility District 115.
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 2 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 8 | 0 | ND |
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
NOTE: Montgomery County Municipal Utility District 127 purchases water from Montgomery County Municipal Utility District 115 which is required to test for monochloroacetic acid. Sample information shown below was taken by Montgomery County Municipal Utility District 115.
| Date | Lab ID | Result |
|---|---|---|
| 2014-06-23 | AC57684 | ND |
| 2014-06-23 | AC57683 | ND |
| 2015-07-20 | AD00097 | ND |
| 2015-07-20 | AD00098 | ND |
| 2016-09-13 | AD49138 | ND |
| 2016-09-13 | AD49135 | ND |
| 2017-09-06 | AD94889 | ND |
| 2017-09-06 | AD94894 | ND |
| 2018-07-26 | AE34670 | ND |
| 2018-07-26 | AE34671 | ND |
| 2018-09-11 | AE39540 | ND |
| 2018-09-11 | AE39563 | ND |
| 2018-11-30 | AE47577 | ND |
| 2018-11-30 | AE47578 | ND |
| 2019-02-13 | AE54290 | ND |
| 2019-02-13 | AE54292 | ND |
| 2019-05-21 | AE67354 | ND |
| 2019-05-21 | AE67353 | ND |
| 2019-09-05 | AE82234 | ND |
| 2019-09-05 | AE82232 | ND |
| 2019-11-21 | AE90135 | ND |
| 2019-11-21 | AE90139 | ND |