Know Your Environment. Protect Your Health.

Bromoform

Regional Water Authority

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.

 

376

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0103 ppb581ND - 0.600 ppb
2019ND590ND
20200.0167 ppb601ND - 1.000 ppb
20210.0133 ppb601ND - 0.800 ppb
2022ND600ND
2023ND790ND

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
2018-03-05VOC1 200489156ND
2018-03-05VOC1 200489128ND
2018-03-05VOC1 200489129ND
2018-03-05VOC1 200489150ND
2018-03-06DBP 200489268ND
2018-03-06DBP 200489275ND
2018-03-06DBP 200489287ND
2018-03-06VOC1 200489295ND
2018-03-06VOC1 2004892980.600 ppb
2018-03-06VOC1 200489296ND
2018-03-07DBP 200489537ND
2018-03-07DBP 200489538ND
2018-03-07DBP 200489539ND
2018-03-07DBP 200489540ND
2018-03-07DBP 200489541ND
2018-03-08DBP 200489565ND
2018-03-09DBP 200489701ND
2018-03-09DBP 200489702ND
2018-03-09DBP 200489703ND
2018-06-05DBP 200495984ND
2018-06-05DBP 200495989ND
2018-06-05DBP 200496002ND
2018-06-06DBP 200496235ND
2018-06-07DBP 200496375ND
2018-06-07DBP 200496376ND
2018-06-07DBP 200496417ND
2018-06-08DBP 200496507ND
2018-06-08DBP 200496508ND
2018-06-08DBP 200496509ND
2018-06-08DBP 200496510ND
2018-06-08DBP 200496511ND
2018-08-17VOC1 200502735ND
2018-09-04DBP 200503732ND
2018-09-04DBP 200503737ND
2018-09-04DBP 200503842ND
2018-09-04DBP 200503912ND
2018-09-04DBP 200503913ND
2018-09-04DBP 200503914ND
2018-09-05DBP 200503981ND
2018-09-05DBP 200504086ND
2018-09-05DBP 200504087ND
2018-09-06DBP 200504185ND
2018-09-06DBP 200504211ND
2018-09-07DBP 200504441ND
2018-11-29VOC1 200514106ND
2018-11-29VOC1 200514121ND
2018-12-03DBP 200514372ND
2018-12-03DBP 200514406ND
2018-12-04DBP 200514447ND
2018-12-04DBP 200514452ND
2018-12-04DBP 200514625ND
2018-12-04DBP 200514626ND
2018-12-04DBP 200514627ND
2018-12-04DBP 200514628ND
2018-12-04DBP 200514629ND
2018-12-05DBP 200514952ND
2018-12-06DBP 200515069ND
2018-12-06DBP 200515070ND
2019-03-04DBP 200523215ND
2019-03-04DBP 200523217ND
2019-03-04VOC1 200523150ND
2019-03-04VOC1 200523151ND
2019-03-04VOC1 200523175ND
2019-03-04VOC1 200523176ND
2019-03-05DBP 200523262ND
2019-03-05DBP 200523269ND
2019-03-05DBP 200523456ND
2019-03-05DBP 200523457ND
2019-03-05DBP 200523458ND
2019-03-05DBP 200523459ND
2019-03-05DBP 200523463ND
2019-03-05VOC1 200523251ND
2019-03-05VOC1 200523254ND
2019-03-05VOC1 200523252ND
2019-03-05VOC1 200523253ND
2019-03-05VOC1 200523284ND
2019-03-05VOC1 200523286ND
2019-03-07DBP 200523884ND
2019-03-08DBP 200524000ND
2019-03-08DBP 200524002ND
2019-05-08VOC1 200531298ND
2019-06-03DBP 200534373ND
2019-06-03DBP 200534414ND
2019-06-04DBP 200534491ND
2019-06-04DBP 200534496ND
2019-06-04DBP 200534600ND
2019-06-04DBP 200534725ND
2019-06-04DBP 200534727ND
2019-06-04DBP 200534729ND
2019-06-05DBP 200535039ND
2019-06-05DBP 200535041ND
2019-06-06DBP 200535197ND
2019-06-07DBP 200535357ND
2019-09-03DBP 200546988ND
2019-09-03DBP 200546993ND
2019-09-04DBP 200547400ND
2019-09-04DBP 200547402ND
2019-09-04DBP 200547403ND
2019-09-04DBP 200547404ND
2019-09-04DBP 200547405ND
2019-09-05DBP 200547460ND
2019-09-05DBP 200547667ND
2019-09-06DBP 200547826ND
2019-09-06DBP 200547827ND
2019-09-06DBP 200547828ND
2019-12-02DBP 200558405ND
2019-12-02DBP 200558406ND
2019-12-02DBP 200558407ND
2019-12-03DBP 200558454ND
2019-12-03DBP 200558459ND
2019-12-03DBP 200558612ND
2019-12-04DBP 200558916ND
2019-12-04DBP 200558917ND
2019-12-04DBP 200558919ND
2019-12-05DBP 200559073ND
2019-12-05DBP 200559098ND
2019-12-06DBP 200559195ND
2020-03-02DBP 200567713ND
2020-03-02DBP 200567714ND
2020-03-02DBP 200567715ND
2020-03-02DBP 200567718ND
2020-03-02VOC1 200567664ND
2020-03-02VOC1 200567665ND
2020-03-02VOC1 200567639AND
2020-03-02VOC1 200567640ND
2020-03-02VOC1 200567639ND
2020-03-03DBP 200567780ND
2020-03-03DBP 200567787ND
2020-03-03DBP 200567920ND
2020-03-03DBP 200567921ND
2020-03-03VOC1 200567761ND
2020-03-03VOC1 200567764ND
2020-03-03VOC1 200567762ND
2020-03-03VOC1 200567961ND
2020-03-04DBP 200568177ND
2020-03-04DBP 200568178ND
2020-03-05DBP 2005682851.000 ppb
2020-03-05DBP 200568384ND
2020-03-05VOC1 200568299ND
2020-03-12DBP 200569164ND
2020-06-01DBP 200577264ND
2020-06-01DBP 200577265ND
2020-06-01DBP 200577266ND
2020-06-02DBP 200577318ND
2020-06-02DBP 200577327ND
2020-06-02DBP 200577399ND
2020-06-02DBP 200577401ND
2020-06-03DBP 200577719ND
2020-06-03DBP 200577721ND
2020-06-04DBP 200577954ND
2020-06-04DBP 200577955ND
2020-06-05DBP 200578077ND
2020-09-08DBP 200589109ND
2020-09-08DBP 200589118ND
2020-09-08DBP 200589252ND
2020-09-08DBP 200589253ND
2020-09-08DBP 200589254ND
2020-09-09DBP 200589560ND
2020-09-09DBP 200589561ND
2020-09-10DBP 200589797ND
2020-09-10DBP 200589799ND
2020-09-10DBP 200589803ND
2020-09-10DBP 200589806ND
2020-09-11DBP 200589868ND
2020-12-07DBP 200600136ND
2020-12-07DBP 200600137ND
2020-12-08DBP 200600326ND
2020-12-08DBP 200600407ND
2020-12-08DBP 200600408ND
2020-12-09DBP 200600562ND
2020-12-09DBP 200600607ND
2020-12-09DBP 200600653ND
2020-12-09DBP 200600656ND
2020-12-10DBP 200600882ND
2020-12-10DBP 200600884ND
2020-12-10DBP 200600884BND
2020-12-11DBP 200600954ND
2021-03-08DBP 200608809ND
2021-03-08DBP 200608835ND
2021-03-08DBP 200608836ND
2021-03-08DBP 200608837ND
2021-03-08VOC1 200608801ND
2021-03-08VOC1 200608885ND
2021-03-08VOC1 200608882ND
2021-03-09DBP 200608914ND
2021-03-09DBP 200609089ND
2021-03-09DBP 200609090ND
2021-03-09DBP 200609093ND
2021-03-09VOC1 200608962ND
2021-03-09VOC1 200608960ND
2021-03-09VOC1 200608959ND
2021-03-09VOC1 200608951ND
2021-03-09VOC1 200608924ND
2021-03-09VOC1 200608986ND
2021-03-10DBP 200609251ND
2021-03-10DBP 200609252ND
2021-03-10VOC1 200609193ND
2021-03-11DBP 2006094200.800 ppb
2021-03-11DBP 200609512ND
2021-03-12DBP 200609584ND
2021-06-07DBP 200619680ND
2021-06-07DBP 200619678ND
2021-06-07DBP 200619679ND
2021-06-08DBP 200619800ND
2021-06-08DBP 200619802ND
2021-06-08DBP 200619920ND
2021-06-08DBP 200619921ND
2021-06-08DBP 200619922ND
2021-06-09DBP 200620173ND
2021-06-10DBP 200620493ND
2021-06-10DBP 200620495ND
2021-06-11DBP 200620583ND
2021-09-13300057530 300057532ND
2021-09-13300057533 300057535ND
2021-09-13300057536 300057538ND
2021-09-14300058253 300058257ND
2021-09-14300058258 300058262ND
2021-09-14300059322 300059326ND
2021-09-14300059327 300059329ND
2021-09-14300059398 300059400ND
2021-09-14V300058206 300058876ND
2021-09-15300060630 300060632ND
2021-09-16300061467 300061469ND
2021-09-16300061470 300061472ND
2021-09-17300062097 300062099ND
2021-12-13D300117139 300117141ND
2021-12-13D300117142 300117144ND
2021-12-13D300117145 300117147ND
2021-12-13D300117148 300117150ND
2021-12-13D300118224 300118228ND
2021-12-13D300118229 300118231ND
2021-12-14D300117272 300117276ND
2021-12-14D300117277 300117281ND
2021-12-15D300119211 300119213ND
2021-12-16D300120051 300120053ND
2021-12-16D300120054 300120056ND
2021-12-17D300120678 300120680ND
2022-03-07D300153474 300153476ND
2022-03-07D300153477 300153479ND
2022-03-07D300153480 300153482ND
2022-03-07V300153323 300153329ND
2022-03-07V300153337 300153343ND
2022-03-07V300153401 300153407ND
2022-03-07V300153384 300153390ND
2022-03-08D300153988 300153992ND
2022-03-08D300153993 300153997ND
2022-03-08D300154252 300154256ND
2022-03-08D300154257 300154259ND
2022-03-08D300154260 300154262ND
2022-03-08V300153972 300153978ND
2022-03-08V300153964 300153970ND
2022-03-08V300153956 300153962ND
2022-03-08V300154039 300154044ND
2022-03-08V300154049 300154054ND
2022-03-09D300155008 300155010ND
2022-03-09V300154647 300154653ND
2022-03-09V300154596 300154602ND
2022-03-10D300155239 300155243ND
2022-03-10D300155826 300155829ND
2022-03-10D300155831 300155834ND
2022-03-11D300156650 300156652ND
2022-06-06D300193482 300193486ND
2022-06-06D300193487 300193490ND
2022-06-06D300193491 300193494ND
2022-06-06D300193495 300193498ND
2022-06-07D300194485 300194488ND
2022-06-07D300194421 300194425ND
2022-06-07D300194474 300194478ND
2022-06-08D300194960 300194963ND
2022-06-08D300196206 300196209ND
2022-06-08D300196210 300196213ND
2022-06-08D300196214 300196217ND
2022-06-10D300196552 300196555ND
2022-09-12D300242309 300242312ND
2022-09-12D300242313 300242316ND
2022-09-13D300242867 300242871ND
2022-09-13D300242872 300242876ND
2022-09-13D300243354 300243358ND
2022-09-13D300243359 300243362ND
2022-09-14D300243943 300243946ND
2022-09-14D300243947 300243950ND
2022-09-14D300243951 300243954ND
2022-09-15D300244400 300244403ND
2022-09-15D300244404 300244407ND
2022-09-15D300245400 300245403ND
2022-12-05D300280513 300280516ND
2022-12-05D300280517 300280520ND
2022-12-05D300280521 300280524ND
2022-12-06D300281387 300281391ND
2022-12-06D300281392 300281395ND
2022-12-06D300281396 300281399ND
2022-12-07D300282133 300282137ND
2022-12-07D300282138 300282142ND
2022-12-07D300282730 300282733ND
2022-12-08D300283547 300283550ND
2022-12-08D300283566 300283569ND
2022-12-09D300284348 300284351ND
2023-02-06V300305519 300305525ND
2023-02-21V300312034 300312489ND
2023-02-21V300312044 300312491ND
2023-02-21V300312000 300312269ND
2023-02-21V300312008 300312271ND
2023-03-06D300316509 300316512ND
2023-03-06D300316513 300316516ND
2023-03-06D300316517 300316520ND
2023-03-06V300316290 300316296ND
2023-03-06V300316304 300316310ND
2023-03-06V300316337 300316343ND
2023-03-06V300316298 300316301ND
2023-03-06V300316312 300316315ND
2023-03-06V300316345 300316348ND
2023-03-07D300317097 300317101ND
2023-03-07D300317102 300317106ND
2023-03-07D300317505 300317509ND
2023-03-07D300317510 300317513ND
2023-03-07D300317514 300317517ND
2023-03-07V300316907 300316913ND
2023-03-07V300316899 300316905ND
2023-03-07V300317611 300317617ND
2023-03-07V300317619 300317622ND
2023-03-08D300318389 300318392ND
2023-03-08D300318393 300318396ND
2023-03-08V300318416 300318422ND
2023-03-08V300317948 300317953ND
2023-03-08V300317958 300317963ND
2023-03-09D300319243 300319246ND
2023-03-09V300319225 300319231ND
2023-03-10D300319398 300319401ND
2023-06-05D300358943 300358946ND
2023-06-05D300358947 300358950ND
2023-06-05D300358951 300358954ND
2023-06-05D300358955 300358958ND
2023-06-05V300358561 300358568ND
2023-06-06D300358988 300358992ND
2023-06-06D300358993 300358997ND
2023-06-06D300359847 300359851ND
2023-06-06D300359852 300359855ND
2023-06-06V300359376 300359383ND
2023-06-06V300359368 300359375ND
2023-06-06V300359360 300359367ND
2023-06-06V300359352 300359359ND
2023-06-06V300359024 300359031ND
2023-06-06V300359033 300359040ND
2023-06-06V300359384 300359391ND
2023-06-06V300359393 300359400ND
2023-06-07D300360865 300360868ND
2023-06-07V300360413 300360420ND
2023-06-07V300360421 300360428ND
2023-06-08D300361983 300361986ND
2023-06-08D300361987 300361990ND
2023-06-09D300362721 300362724ND
2023-06-28D300372809 300373415ND
2023-09-11D300412854 300412857ND
2023-09-11D300412858 300412861ND
2023-09-12D300413093 300413097ND
2023-09-12D300413098 300413102ND
2023-09-12D300413568 300413572ND
2023-09-12D300413573 300413576ND
2023-09-12D300413577 300413580ND
2023-09-12D300413581 300413584ND
2023-09-13D300414470 300414473ND
2023-09-13D300414474 300414477ND
2023-09-14D300415299 300415302ND
2023-09-15D300416083 300416086ND
2023-12-04D300454311 300454314ND
2023-12-04D300454315 300454318ND
2023-12-04D300454322 300454325ND
2023-12-05D300454448 300454452ND
2023-12-05D300454453 300454457ND
2023-12-05D300454954 300454958ND
2023-12-05D300454962 300454965ND
2023-12-05D300454972 300454975ND
2023-12-06D300455828 300455831ND
2023-12-06D300455832 300455835ND
2023-12-07D300456845 300456848ND
2023-12-08D300457513 300457516ND