Know Your Environment. Protect Your Health.

Bromoform

Princeton, City of

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.190 ppb41ND - 0.760 ppb
2019ND40ND
20200.433 ppb42ND - 1.000 ppb
2021ND40ND
2022ND30ND
20230.800 ppb110.800 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
2018-02-20907442ND
2018-05-22974377ND
2018-08-1410258440.760 ppb
2018-11-201079958ND
2019-02-261126407ND
2019-05-211157469ND
2019-08-271230202ND
2019-11-191277774ND
2020-02-251330494ND
2020-05-191383559ND
2020-09-0115174490.730 ppb
2020-11-1716666301.000 ppb
2021-02-231778892ND
2021-05-171841319ND
2021-08-121915651ND
2021-11-162027751ND
2022-02-232200756ND
2022-05-312268603ND
2022-08-052329353ND
2023-09-1325751270.800 ppb