Monochloroacetic acid
New Britain 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.
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 | 0.397 ppb | 33 | 18 | ND - 1.40 ppb |
| 2019 | 0.147 ppb | 32 | 6 | ND - 0.900 ppb |
| 2020 | 0.0771 ppb | 35 | 5 | ND - 0.600 ppb |
| 2021 | 0.809 ppb | 40 | 26 | ND - 1.90 ppb |
| 2022 | 0.649 ppb | 34 | 24 | ND - 1.40 ppb |
| 2023 | 0.418 ppb | 32 | 19 | ND - 1.48 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 |
|---|---|---|
| 2018-02-22 | DBP 200488580 | ND |
| 2018-02-22 | DBP 200488581 | ND |
| 2018-02-22 | DBP 200488582 | ND |
| 2018-02-22 | DBP 200488583 | ND |
| 2018-02-22 | DBP 200488584 | ND |
| 2018-02-22 | DBP 200488585 | ND |
| 2018-02-22 | DBP 200488586 | 0.600 ppb |
| 2018-02-22 | DBP 200488587 | ND |
| 2018-05-16 | DBP 200494888 | ND |
| 2018-05-16 | DBP 200494889 | ND |
| 2018-05-16 | DBP 200494890 | 0.500 ppb |
| 2018-05-16 | DBP 200494891 | 0.600 ppb |
| 2018-05-16 | DBP 200494892 | ND |
| 2018-05-16 | DBP 200494893 | 0.500 ppb |
| 2018-05-16 | DBP 200494894 | 0.700 ppb |
| 2018-05-16 | DBP 200494895 | 0.500 ppb |
| 2018-08-14 | DBP 200502300 | 1.30 ppb |
| 2018-08-14 | DBP 200502301 | 1.20 ppb |
| 2018-08-14 | DBP 200502302 | 1.10 ppb |
| 2018-08-14 | DBP 200502303 | 0.800 ppb |
| 2018-08-14 | DBP 200502304 | 1.40 ppb |
| 2018-08-14 | DBP 200502305 | ND |
| 2018-08-14 | DBP 200502306 | ND |
| 2018-08-14 | DBP 200502307 | ND |
| 2018-11-14 | DBP 200512645 | 0.600 ppb |
| 2018-11-14 | DBP 200512646 | 0.500 ppb |
| 2018-11-14 | DBP 200512647 | 0.600 ppb |
| 2018-11-14 | DBP 200512648 | 0.500 ppb |
| 2018-11-14 | DBP 200512649 | 0.600 ppb |
| 2018-11-14 | DBP 200512650 | ND |
| 2018-11-14 | DBP 200512651 | ND |
| 2018-11-14 | DBP 200512652 | 0.600 ppb |
| 2018-11-14 | DBP 200512654 | 0.500 ppb |
| 2019-02-20 | DBP 200522297 | ND |
| 2019-02-20 | DBP 200522298 | ND |
| 2019-02-20 | DBP 200522299 | ND |
| 2019-02-20 | DBP 200522300 | ND |
| 2019-02-20 | DBP 200522301 | ND |
| 2019-02-20 | DBP 200522302 | ND |
| 2019-02-20 | DBP 200522303 | ND |
| 2019-02-20 | DBP 200522304 | ND |
| 2019-05-16 | DBP 200532562 | ND |
| 2019-05-16 | DBP 200532563 | ND |
| 2019-05-16 | DBP 200532564 | ND |
| 2019-05-16 | DBP 200532565 | ND |
| 2019-05-16 | DBP 200532566 | ND |
| 2019-05-16 | DBP 200532567 | ND |
| 2019-05-16 | DBP 200532568 | ND |
| 2019-05-16 | DBP 200532569 | ND |
| 2019-08-20 | DBP 200545574 | 0.600 ppb |
| 2019-08-20 | DBP 200545575 | ND |
| 2019-08-20 | DBP 200545576 | 0.800 ppb |
| 2019-08-20 | DBP 200545577 | 0.900 ppb |
| 2019-08-20 | DBP 200545578 | 0.900 ppb |
| 2019-08-20 | DBP 200545579 | 0.800 ppb |
| 2019-08-20 | DBP 200545580 | 0.700 ppb |
| 2019-08-20 | DBP 200545581 | ND |
| 2019-11-21 | DBP 200557689 | ND |
| 2019-11-21 | DBP 200557690 | ND |
| 2019-11-21 | DBP 200557691 | ND |
| 2019-11-21 | DBP 200557692 | ND |
| 2019-11-21 | DBP 200557693 | ND |
| 2019-11-21 | DBP 200557694 | ND |
| 2019-11-21 | DBP 200557695 | ND |
| 2019-11-21 | DBP 200557696 | ND |
| 2020-02-20 | DBP 200566934 | ND |
| 2020-02-20 | DBP 200566935 | ND |
| 2020-02-20 | DBP 200566936 | ND |
| 2020-02-20 | DBP 200566937 | ND |
| 2020-02-20 | DBP 200566938 | ND |
| 2020-02-20 | DBP 200566939 | ND |
| 2020-02-20 | DBP 200566940 | ND |
| 2020-02-20 | DBP 200566941 | ND |
| 2020-02-20 | DBP 200566944 | ND |
| 2020-05-13 | DBP 200575541 | ND |
| 2020-05-13 | DBP 200575542 | ND |
| 2020-05-13 | DBP 200575543 | 0.500 ppb |
| 2020-05-13 | DBP 200575544 | ND |
| 2020-05-13 | DBP 200575545 | ND |
| 2020-05-13 | DBP 200575546 | ND |
| 2020-05-13 | DBP 200575547 | ND |
| 2020-05-13 | DBP 200575548 | ND |
| 2020-08-11 | DBP 200585918 | 0.600 ppb |
| 2020-08-11 | DBP 200585919 | 0.500 ppb |
| 2020-08-11 | DBP 200585920 | 0.500 ppb |
| 2020-08-11 | DBP 200585921 | ND |
| 2020-08-11 | DBP 200585922 | 0.600 ppb |
| 2020-08-11 | DBP 200585923 | ND |
| 2020-08-11 | DBP 200585924 | ND |
| 2020-08-11 | DBP 200585925 | ND |
| 2020-08-11 | DBP 200585968 | ND |
| 2020-11-18 | DBP 200598654 | ND |
| 2020-11-18 | DBP 200598655 | ND |
| 2020-11-18 | DBP 200598656 | ND |
| 2020-11-18 | DBP 200598657 | ND |
| 2020-11-18 | DBP 200598658 | ND |
| 2020-11-18 | DBP 200598659 | ND |
| 2020-11-18 | DBP 200598660 | ND |
| 2020-11-18 | DBP 200598661 | ND |
| 2020-11-18 | DBP 200598662 | ND |
| 2021-02-17 | DBP 200607067 | ND |
| 2021-02-17 | DBP 200607068 | ND |
| 2021-02-17 | DBP 200607069 | ND |
| 2021-02-17 | DBP 200607070 | ND |
| 2021-02-17 | DBP 200607071 | 0.600 ppb |
| 2021-02-17 | DBP 200607072 | ND |
| 2021-02-17 | DBP 200607073 | ND |
| 2021-02-17 | DBP 200607074 | ND |
| 2021-05-20 | DBP 200618015 | ND |
| 2021-05-20 | DBP 200618016 | ND |
| 2021-05-20 | DBP 200618017 | 0.500 ppb |
| 2021-05-20 | DBP 200618018 | ND |
| 2021-05-20 | DBP 200618019 | ND |
| 2021-05-20 | DBP 200618020 | ND |
| 2021-05-20 | DBP 200618021 | ND |
| 2021-05-20 | DBP 200618022 | ND |
| 2021-08-11 | DBP 200628130 | 0.800 ppb |
| 2021-08-11 | DBP 200628131 | 0.700 ppb |
| 2021-08-11 | DBP 200628132 | 1.000 ppb |
| 2021-08-11 | DBP 200628133 | 1.000 ppb |
| 2021-08-11 | DBP 200628134 | 0.900 ppb |
| 2021-08-11 | DBP 200628135 | 0.700 ppb |
| 2021-08-11 | DBP 200628136 | 0.700 ppb |
| 2021-08-11 | DBP 200628137 | 0.900 ppb |
| 2021-11-17 | D300103908 300103909 | 1.12 ppb |
| 2021-11-17 | D300103911 300103912 | 1.09 ppb |
| 2021-11-17 | D300103914 300103915 | 1.89 ppb |
| 2021-11-17 | D300103917 300103918 | 1.65 ppb |
| 2021-11-17 | D300103920 300103921 | 1.54 ppb |
| 2021-11-17 | D300103923 300103924 | 1.66 ppb |
| 2021-11-17 | D300103926 300103927 | 1.65 ppb |
| 2021-11-17 | D300103929 300103930 | 1.71 ppb |
| 2021-11-17 | P300103908 300103909 | 1.10 ppb |
| 2021-11-17 | P300103911 300103912 | 1.10 ppb |
| 2021-11-17 | P300103914 300103915 | 1.90 ppb |
| 2021-11-17 | P300103917 300103918 | 1.60 ppb |
| 2021-11-17 | P300103920 300103921 | 1.50 ppb |
| 2021-11-17 | P300103923 300103924 | 1.70 ppb |
| 2021-11-17 | P300103926 300103927 | 1.65 ppb |
| 2021-11-17 | P300103929 300103930 | 1.70 ppb |
| 2022-02-15 | D300145868 300145869 | ND |
| 2022-02-15 | D300145871 300145872 | ND |
| 2022-02-15 | D300145874 300145875 | ND |
| 2022-02-15 | D300145877 300145878 | ND |
| 2022-02-15 | D300145880 300145881 | ND |
| 2022-02-15 | D300145883 300145884 | ND |
| 2022-02-15 | D300145886 300145887 | ND |
| 2022-02-15 | D300145889 300145890 | ND |
| 2022-02-15 | D300145892 300145893 | ND |
| 2022-05-10 | D300181521 300181522 | 1.01 ppb |
| 2022-05-10 | D300181524 300181525 | 1.01 ppb |
| 2022-05-10 | D300181527 300181528 | 1.22 ppb |
| 2022-05-10 | D300181530 300181531 | 1.40 ppb |
| 2022-05-10 | D300181533 300181534 | 1.10 ppb |
| 2022-05-10 | D300181536 300181537 | 0.600 ppb |
| 2022-05-10 | D300181539 300181540 | 0.770 ppb |
| 2022-05-10 | D300181542 300181543 | 0.820 ppb |
| 2022-05-10 | D300181545 300181546 | 0.730 ppb |
| 2022-08-09 | D300227257 300227258 | 0.990 ppb |
| 2022-08-09 | D300227260 300227261 | 1.01 ppb |
| 2022-08-09 | D300227263 300227264 | 1.05 ppb |
| 2022-08-09 | D300227266 300227267 | 0.980 ppb |
| 2022-08-09 | D300227269 300227270 | 1.16 ppb |
| 2022-08-09 | D300227272 300227273 | 0.770 ppb |
| 2022-08-09 | D300227275 300227276 | 0.830 ppb |
| 2022-08-09 | D300227278 300227279 | 0.660 ppb |
| 2022-11-15 | D300273443 300273445 | 1.05 ppb |
| 2022-11-15 | D300273450 300273452 | 1.15 ppb |
| 2022-11-15 | D300273456 300273460 | 0.880 ppb |
| 2022-11-15 | D300273462 300273463 | 0.730 ppb |
| 2022-11-15 | D300273465 300273466 | 0.820 ppb |
| 2022-11-15 | D300273468 300273469 | 0.590 ppb |
| 2022-11-15 | D300273471 300273472 | ND |
| 2022-11-15 | D300273474 300273475 | 0.720 ppb |
| 2023-02-09 | D300307705 300307706 | ND |
| 2023-02-09 | D300307708 300307709 | ND |
| 2023-02-09 | D300307711 300307712 | 0.540 ppb |
| 2023-02-09 | D300307714 300307715 | ND |
| 2023-02-09 | D300307717 300307718 | 0.720 ppb |
| 2023-02-09 | D300307720 300307721 | 0.560 ppb |
| 2023-02-09 | D300307723 300307724 | 0.510 ppb |
| 2023-02-09 | D300307726 300307727 | ND |
| 2023-05-11 | D300349330 300349331 | 0.660 ppb |
| 2023-05-11 | D300349333 300349334 | 0.580 ppb |
| 2023-05-11 | D300349336 300349337 | 1.48 ppb |
| 2023-05-11 | D300349339 300349340 | ND |
| 2023-05-11 | D300349342 300349343 | ND |
| 2023-05-11 | D300349345 300349346 | 0.500 ppb |
| 2023-05-11 | D300349348 300349349 | 0.870 ppb |
| 2023-05-11 | D300349351 300349352 | 0.550 ppb |
| 2023-08-16 | D300399298 300399299 | 0.760 ppb |
| 2023-08-16 | D300399301 300399302 | 0.750 ppb |
| 2023-08-16 | D300399304 300399305 | 1.15 ppb |
| 2023-08-16 | D300399307 300399308 | 0.640 ppb |
| 2023-08-16 | D300399310 300399311 | 0.820 ppb |
| 2023-08-16 | D300399313 300399314 | ND |
| 2023-08-16 | D300399316 300399317 | ND |
| 2023-08-16 | D300399319 300399320 | ND |
| 2023-11-16 | D300447192 300447193 | 0.500 ppb |
| 2023-11-16 | D300447195 300447196 | 0.610 ppb |
| 2023-11-16 | D300447198 300447199 | 0.590 ppb |
| 2023-11-16 | D300447201 300447202 | ND |
| 2023-11-16 | D300447204 300447205 | 0.570 ppb |
| 2023-11-16 | D300447207 300447208 | ND |
| 2023-11-16 | D300447210 300447211 | ND |
| 2023-11-16 | D300447213 300447214 | ND |