Bromoform
Meriden Water Division
Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform 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 | 0.00838 ppb | 68 | 1 | ND - 0.570 ppb |
| 2019 | 0.0734 ppb | 70 | 8 | ND - 0.800 ppb |
| 2020 | 0.0372 ppb | 67 | 4 | ND - 0.760 ppb |
| 2021 | 0.0174 ppb | 65 | 2 | ND - 0.570 ppb |
| 2022 | 0.0389 ppb | 66 | 4 | ND - 0.740 ppb |
| 2023 | 0.0161 ppb | 64 | 2 | ND - 0.520 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.5 ppb
The EWG Health Guideline of 0.5 ppb for bromoform is based on 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. This health guideline protects against cancer, harm to reproduction and child development, and change to fetal growth and development .
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-18 | BZ74951VOC1 | ND |
| 2018-02-08 | BZ86181TTHM | ND |
| 2018-02-08 | BZ86182TTHM | ND |
| 2018-02-08 | BZ86183TTHM | ND |
| 2018-02-08 | BZ86184TTHM | ND |
| 2018-02-08 | BZ86185TTHM | ND |
| 2018-02-08 | BZ86186TTHM | ND |
| 2018-02-08 | BZ86187TTHM | ND |
| 2018-02-08 | BZ86188TTHM | ND |
| 2018-03-12 | CA01226TTHM | ND |
| 2018-03-12 | CA01227TTHM | ND |
| 2018-03-12 | CA01228TTHM | ND |
| 2018-04-12 | CA19004TTHM | ND |
| 2018-04-12 | CA19005TTHM | ND |
| 2018-04-12 | CA19006TTHM | ND |
| 2018-05-10 | CA44958TTHM | ND |
| 2018-05-10 | CA44959TTHM | ND |
| 2018-05-10 | CA44960TTHM | ND |
| 2018-05-10 | CA44961TTHM | ND |
| 2018-05-10 | CA44962TTHM | ND |
| 2018-05-10 | CA44963TTHM | ND |
| 2018-05-10 | CA44964TTHM | ND |
| 2018-05-10 | CA44965TTHM | ND |
| 2018-05-17 | CA49083VOC1 | ND |
| 2018-06-07 | CA65949TTHM | ND |
| 2018-06-07 | CA65950TTHM | ND |
| 2018-06-07 | CA65951TTHM | ND |
| 2018-07-12 | CA88491TTHM | ND |
| 2018-07-12 | CA88492TTHM | ND |
| 2018-07-12 | CA88493TTHM | ND |
| 2018-07-19 | CA94410 | ND |
| 2018-07-19 | CA94411 | ND |
| 2018-07-19 | CA94412 | ND |
| 2018-07-19 | CA94413 | ND |
| 2018-07-26 | CA98719 | ND |
| 2018-08-09 | CB08267 | ND |
| 2018-08-09 | CB08268 | ND |
| 2018-08-09 | CB08269 | ND |
| 2018-08-09 | CB08270 | ND |
| 2018-08-09 | CB08271 | 0.570 ppb |
| 2018-08-09 | CB08272 | ND |
| 2018-08-09 | CB08273 | ND |
| 2018-08-09 | CB08274 | ND |
| 2018-08-09 | CB08263 | ND |
| 2018-08-23 | CB17441 | ND |
| 2018-09-13 | CB30717 | ND |
| 2018-09-13 | CB30718 | ND |
| 2018-09-13 | CB30719 | ND |
| 2018-09-20 | CB35508 | ND |
| 2018-09-20 | CB35511 | ND |
| 2018-09-27 | CB59877 | ND |
| 2018-10-11 | CB69876 | ND |
| 2018-10-11 | CB69877 | ND |
| 2018-10-11 | CB69878 | ND |
| 2018-10-11 | CB69872 | ND |
| 2018-11-14 | CB97384 | ND |
| 2018-11-14 | CB97385 | ND |
| 2018-11-14 | CB97386 | ND |
| 2018-11-14 | CB97387 | ND |
| 2018-11-14 | CB97371 | ND |
| 2018-11-20 | CC02615 | ND |
| 2018-11-20 | CC02616 | ND |
| 2018-11-20 | CC02617 | ND |
| 2018-11-20 | CC02618 | ND |
| 2018-12-07 | CC11054 | ND |
| 2018-12-12 | CC12839 | ND |
| 2018-12-12 | CC12840 | ND |
| 2018-12-12 | CC12841 | ND |
| 2019-01-09 | CC26159 | ND |
| 2019-01-09 | CC26160 | ND |
| 2019-01-09 | CC26161 | ND |
| 2019-02-06 | CC41805 | ND |
| 2019-02-13 | CC51440 | ND |
| 2019-02-13 | CC51441 | ND |
| 2019-02-13 | CC51442 | ND |
| 2019-02-13 | CC51443 | ND |
| 2019-02-13 | CC51444 | ND |
| 2019-02-13 | CC51445 | ND |
| 2019-02-13 | CC51446 | ND |
| 2019-02-13 | CC51447 | ND |
| 2019-03-13 | CC67336 | ND |
| 2019-03-13 | CC67337 | ND |
| 2019-03-13 | CC67338 | ND |
| 2019-04-10 | CC92173 | ND |
| 2019-04-10 | CC92174 | ND |
| 2019-04-10 | CC92175 | ND |
| 2019-04-25 | CD01551 | ND |
| 2019-05-08 | CD09263 | ND |
| 2019-05-08 | CD09264 | ND |
| 2019-05-08 | CD09265 | ND |
| 2019-05-08 | CD09266 | ND |
| 2019-05-08 | CD09267 | ND |
| 2019-05-08 | CD09268 | 0.570 ppb |
| 2019-05-08 | CD09269 | ND |
| 2019-05-08 | CD09270 | ND |
| 2019-05-08 | CD09272 | ND |
| 2019-06-12 | CD33213 | ND |
| 2019-06-12 | CD33214 | ND |
| 2019-06-12 | CD33215 | ND |
| 2019-06-19 | CD38010 | ND |
| 2019-06-19 | CD38011 | ND |
| 2019-06-19 | CD38012 | ND |
| 2019-06-26 | CD42474 | ND |
| 2019-06-26 | CD42475 | ND |
| 2019-06-26 | CD42476 | ND |
| 2019-07-10 | CD53538 | ND |
| 2019-07-10 | CD53539 | ND |
| 2019-07-10 | CD53540 | ND |
| 2019-07-10 | CD53533 | ND |
| 2019-08-07 | CD80098 | ND |
| 2019-08-14 | CD84984 | ND |
| 2019-08-14 | CD84985 | ND |
| 2019-08-14 | CD84986 | ND |
| 2019-08-14 | CD84987 | 0.610 ppb |
| 2019-08-14 | CD84988 | 0.600 ppb |
| 2019-08-14 | CD84989 | 0.760 ppb |
| 2019-08-14 | CD84990 | ND |
| 2019-08-14 | CD84991 | 0.800 ppb |
| 2019-09-04 | CD97370 | ND |
| 2019-09-11 | CE06528 | ND |
| 2019-09-11 | CE06529 | ND |
| 2019-09-11 | CE06530 | 0.590 ppb |
| 2019-10-02 | CE25548 | ND |
| 2019-10-09 | CE29947 | ND |
| 2019-10-09 | CE29948 | ND |
| 2019-10-09 | CE29949 | ND |
| 2019-11-06 | CE55216 | ND |
| 2019-11-14 | CE60570 | ND |
| 2019-11-14 | CE60571 | ND |
| 2019-11-14 | CE60572 | ND |
| 2019-11-14 | CE60573 | ND |
| 2019-11-14 | CE60574 | ND |
| 2019-11-14 | CE60575 | 0.610 ppb |
| 2019-11-14 | CE60576 | ND |
| 2019-11-14 | CE60577 | 0.600 ppb |
| 2019-12-11 | CE85082 | ND |
| 2019-12-11 | CE85083 | ND |
| 2019-12-11 | CE85084 | ND |
| 2020-01-31 | CF24539 | ND |
| 2020-01-31 | CF24540 | ND |
| 2020-01-31 | CF24541 | ND |
| 2020-02-19 | CF34503 | ND |
| 2020-02-19 | CF34504 | ND |
| 2020-02-19 | CF34505 | ND |
| 2020-02-19 | CF34506 | ND |
| 2020-02-19 | CF34507 | ND |
| 2020-02-19 | CF34508 | ND |
| 2020-02-19 | CF34509 | ND |
| 2020-02-19 | CF34510 | ND |
| 2020-03-16 | CF50882 | ND |
| 2020-03-16 | CF50883 | ND |
| 2020-03-16 | CF50884 | ND |
| 2020-04-08 | CF70494 | ND |
| 2020-04-08 | CF70495 | ND |
| 2020-04-08 | CF70496 | ND |
| 2020-05-20 | CF98466 | ND |
| 2020-05-20 | CF98467 | ND |
| 2020-05-20 | CF98468 | ND |
| 2020-05-20 | CF98469 | ND |
| 2020-05-20 | CF98470 | ND |
| 2020-05-21 | CF99453 | ND |
| 2020-05-21 | CF99454 | ND |
| 2020-05-21 | CF99455 | ND |
| 2020-06-10 | CG10480 | ND |
| 2020-06-10 | CG10481 | ND |
| 2020-06-10 | CG10482 | ND |
| 2020-06-10 | CG10479 | ND |
| 2020-06-17 | CG16086 | ND |
| 2020-06-17 | CG16087 | ND |
| 2020-06-17 | CG16088 | ND |
| 2020-07-08 | CG29532 | ND |
| 2020-07-15 | CG34276 | ND |
| 2020-07-15 | CG34277 | ND |
| 2020-07-15 | CG34278 | ND |
| 2020-07-29 | CG43211 | ND |
| 2020-07-29 | CG43212 | ND |
| 2020-08-12 | CG52360 | ND |
| 2020-08-12 | CG52361 | ND |
| 2020-08-12 | CG52362 | ND |
| 2020-08-12 | CG52363 | ND |
| 2020-08-12 | CG52364 | 0.560 ppb |
| 2020-08-12 | CG52365 | ND |
| 2020-08-12 | CG52366 | ND |
| 2020-08-12 | CG52367 | ND |
| 2020-08-12 | CG52353 | ND |
| 2020-09-09 | CG73199 | ND |
| 2020-09-09 | CG73200 | ND |
| 2020-09-09 | CG73201 | 0.760 ppb |
| 2020-09-30 | CG88204 | ND |
| 2020-10-07 | CG92447 | ND |
| 2020-10-14 | CG96690 | ND |
| 2020-10-14 | CG96691 | ND |
| 2020-10-14 | CG96692 | 0.620 ppb |
| 2020-11-12 | CH13749 | ND |
| 2020-11-12 | CH13750 | ND |
| 2020-11-12 | CH13751 | ND |
| 2020-11-12 | CH13752 | ND |
| 2020-11-12 | CH13753 | 0.550 ppb |
| 2020-11-12 | CH13754 | ND |
| 2020-11-12 | CH13755 | ND |
| 2020-11-12 | CH13756 | ND |
| 2020-11-12 | CH13760 | ND |
| 2020-12-09 | CH28026 | ND |
| 2020-12-09 | CH28027 | ND |
| 2020-12-09 | CH28028 | ND |
| 2021-01-13 | CH45536 | ND |
| 2021-01-13 | CH45537 | ND |
| 2021-01-13 | CH45538 | ND |
| 2021-02-04 | CH56876 | ND |
| 2021-02-04 | CH56877 | ND |
| 2021-02-04 | CH56878 | ND |
| 2021-02-04 | CH56879 | ND |
| 2021-02-04 | CH56880 | ND |
| 2021-02-04 | CH56881 | ND |
| 2021-02-04 | CH56882 | ND |
| 2021-02-04 | CH56883 | ND |
| 2021-03-11 | CH76653 | ND |
| 2021-03-11 | CH76654 | ND |
| 2021-03-11 | CH76655 | ND |
| 2021-04-14 | CH99106 | ND |
| 2021-04-14 | CH99107 | ND |
| 2021-04-14 | CH99108 | ND |
| 2021-04-26 | CI15487 | ND |
| 2021-05-05 | CI23778 | ND |
| 2021-05-05 | CI23779 | ND |
| 2021-05-05 | CI23780 | ND |
| 2021-05-05 | CI23781 | ND |
| 2021-05-05 | CI23782 | ND |
| 2021-05-05 | CI23783 | ND |
| 2021-05-05 | CI23784 | ND |
| 2021-05-05 | CI23785 | ND |
| 2021-05-05 | CI23774 | ND |
| 2021-06-09 | CI51091 | ND |
| 2021-06-09 | CI51092 | ND |
| 2021-06-09 | CI51093 | ND |
| 2021-06-09 | CI51094 | ND |
| 2021-06-09 | CI51095 | ND |
| 2021-06-09 | CI51096 | ND |
| 2021-06-14 | CI54537 | ND |
| 2021-06-16 | CI56522 | ND |
| 2021-06-16 | CI56523 | ND |
| 2021-06-16 | CI56524 | ND |
| 2021-07-28 | CI83796 | ND |
| 2021-08-09 | CI93330 | ND |
| 2021-08-25 | CJ13502 | ND |
| 2021-08-25 | CJ13503 | ND |
| 2021-08-25 | CJ13504 | ND |
| 2021-08-25 | CJ13505 | 0.560 ppb |
| 2021-08-25 | CJ13506 | 0.570 ppb |
| 2021-08-25 | CJ13507 | ND |
| 2021-08-25 | CJ13508 | ND |
| 2021-08-25 | CJ13509 | ND |
| 2021-08-25 | CJ13500 | ND |
| 2021-09-15 | CJ28964 | ND |
| 2021-09-15 | CJ28965 | ND |
| 2021-09-15 | CJ28966 | ND |
| 2021-10-20 | CJ65919 | ND |
| 2021-10-20 | CJ65920 | ND |
| 2021-10-20 | CJ65921 | ND |
| 2021-11-17 | CJ79930 | ND |
| 2021-11-17 | CJ79931 | ND |
| 2021-11-17 | CJ79932 | ND |
| 2021-11-17 | CJ79933 | ND |
| 2021-11-17 | CJ79934 | ND |
| 2021-11-17 | CJ79935 | ND |
| 2021-11-17 | CJ79936 | ND |
| 2021-11-17 | CJ79937 | ND |
| 2021-12-15 | CJ98528 | ND |
| 2021-12-15 | CJ98529 | ND |
| 2021-12-15 | CJ98530 | ND |
| 2022-01-12 | CK14621 | ND |
| 2022-01-12 | CK14622 | ND |
| 2022-01-12 | CK14623 | ND |
| 2022-02-09 | CK33235 | ND |
| 2022-02-09 | CK33236 | ND |
| 2022-02-09 | CK33237 | ND |
| 2022-02-09 | CK33238 | ND |
| 2022-02-09 | CK33239 | ND |
| 2022-02-09 | CK33240 | ND |
| 2022-02-09 | CK33241 | ND |
| 2022-02-09 | CK33242 | ND |
| 2022-03-09 | CK82923 | ND |
| 2022-03-09 | CK82924 | ND |
| 2022-03-09 | CK82925 | ND |
| 2022-04-13 | CL07788 | ND |
| 2022-04-13 | CL07789 | ND |
| 2022-04-13 | CL07790 | ND |
| 2022-05-19 | CL34117 | ND |
| 2022-05-19 | CL34118 | ND |
| 2022-05-19 | CL34119 | ND |
| 2022-05-19 | CL34120 | ND |
| 2022-05-19 | CL34121 | ND |
| 2022-05-19 | CL34122 | ND |
| 2022-05-19 | CL34123 | ND |
| 2022-05-19 | CL34124 | ND |
| 2022-05-25 | CL38209 | ND |
| 2022-06-01 | CL45769 | ND |
| 2022-06-01 | CL45770 | ND |
| 2022-06-01 | CL45771 | ND |
| 2022-06-01 | CL45772 | ND |
| 2022-06-01 | CL45773 | ND |
| 2022-06-15 | CL56834 | ND |
| 2022-06-15 | CL56835 | ND |
| 2022-06-15 | CL56836 | ND |
| 2022-06-22 | CL61866 | ND |
| 2022-06-27 | CL64555 | ND |
| 2022-07-13 | CL76342 | ND |
| 2022-07-13 | CL76343 | ND |
| 2022-07-13 | CL76344 | ND |
| 2022-07-27 | CL90095 | ND |
| 2022-08-10 | CM01659 | ND |
| 2022-08-10 | CM01660 | ND |
| 2022-08-10 | CM01661 | ND |
| 2022-08-10 | CM01662 | 0.670 ppb |
| 2022-08-10 | CM01663 | 0.660 ppb |
| 2022-08-10 | CM01664 | ND |
| 2022-08-10 | CM01665 | ND |
| 2022-08-10 | CM01666 | ND |
| 2022-09-14 | CM30991 | ND |
| 2022-09-14 | CM30992 | ND |
| 2022-09-14 | CM30993 | ND |
| 2022-10-12 | CM60353 | ND |
| 2022-10-12 | CM60354 | ND |
| 2022-10-12 | CM60355 | ND |
| 2022-11-09 | CM80564 | ND |
| 2022-11-15 | CM87043 | ND |
| 2022-11-15 | CM87044 | ND |
| 2022-11-15 | CM87046 | ND |
| 2022-11-15 | CM87047 | 0.500 ppb |
| 2022-11-15 | CM87049 | ND |
| 2022-11-15 | CM87050 | ND |
| 2022-11-16 | CM87048 | 0.740 ppb |
| 2022-11-16 | CM87045 | ND |
| 2022-12-21 | CN09696 | ND |
| 2022-12-21 | CN09697 | ND |
| 2022-12-21 | CN09698 | ND |
| 2023-01-11 | CN21149 | ND |
| 2023-01-11 | CN21150 | ND |
| 2023-01-11 | CN21151 | ND |
| 2023-01-30 | CN32219 | ND |
| 2023-02-15 | CN43462 | ND |
| 2023-02-15 | CN43463 | ND |
| 2023-02-15 | CN43464 | ND |
| 2023-02-15 | CN43465 | ND |
| 2023-02-15 | CN43466 | ND |
| 2023-02-15 | CN43467 | ND |
| 2023-02-15 | CN43468 | ND |
| 2023-02-15 | CN43469 | ND |
| 2023-03-08 | CN55434 | ND |
| 2023-03-08 | CN55435 | ND |
| 2023-03-08 | CN55436 | ND |
| 2023-03-08 | CN55431 | ND |
| 2023-03-13 | CN58724 | ND |
| 2023-03-15 | CN60227 | ND |
| 2023-03-15 | CN60228 | ND |
| 2023-03-22 | CN65582 | ND |
| 2023-04-19 | CN86745 | ND |
| 2023-04-19 | CN86746 | ND |
| 2023-04-19 | CN86747 | ND |
| 2023-05-10 | CO02317 | ND |
| 2023-05-10 | CO02318 | ND |
| 2023-05-10 | CO02319 | ND |
| 2023-05-10 | CO02320 | ND |
| 2023-05-10 | CO02321 | ND |
| 2023-05-10 | CO02322 | ND |
| 2023-05-10 | CO02323 | ND |
| 2023-05-10 | CO02324 | ND |
| 2023-06-14 | CO27763 | ND |
| 2023-06-14 | CO27764 | ND |
| 2023-06-14 | CO27765 | ND |
| 2023-07-12 | CO48627 | ND |
| 2023-07-12 | CO48628 | ND |
| 2023-07-12 | CO48629 | 0.510 ppb |
| 2023-07-17 | CO51914 | ND |
| 2023-07-28 | CO61474 | ND |
| 2023-08-10 | CO71756 | ND |
| 2023-08-10 | CO71757 | ND |
| 2023-08-10 | CO71758 | ND |
| 2023-08-10 | CO71759 | 0.520 ppb |
| 2023-08-10 | CO71760 | ND |
| 2023-08-10 | CO71761 | ND |
| 2023-08-10 | CO71762 | ND |
| 2023-08-10 | CO71763 | ND |
| 2023-09-20 | CP04549 | ND |
| 2023-09-20 | CP04550 | ND |
| 2023-09-20 | CP04551 | ND |
| 2023-10-11 | CP22990 | ND |
| 2023-10-11 | CP22991 | ND |
| 2023-10-11 | CP22992 | ND |
| 2023-11-08 | CP43390 | ND |
| 2023-11-08 | CP43391 | ND |
| 2023-11-08 | CP43392 | ND |
| 2023-11-08 | CP43393 | ND |
| 2023-11-08 | CP43394 | ND |
| 2023-11-08 | CP43395 | ND |
| 2023-11-08 | CP43396 | ND |
| 2023-11-08 | CP43397 | ND |
| 2023-12-13 | CP66586 | ND |
| 2023-12-13 | CP66587 | ND |
| 2023-12-13 | CP66588 | ND |