Know Your Environment. Protect Your Health.

Bromoform

Louisburg, 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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

24

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.26 ppb87ND - 2.60 ppb
20190.375 ppb82ND - 1.50 ppb
20200.609 ppb83ND - 2.30 ppb
20210.243 ppb83ND - 0.670 ppb
20220.739 ppb85ND - 2.10 ppb
20230.613 ppb85ND - 1.60 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
2018-02-219078670.610 ppb
2018-02-219078681.000 ppb
2018-05-309784211.60 ppb
2018-05-309784251.40 ppb
2018-08-2110294442.60 ppb
2018-08-2110294452.30 ppb
2018-11-131076734ND
2018-11-1310767350.580 ppb
2019-02-251125836ND
2019-02-251125837ND
2019-05-221157689ND
2019-05-221157690ND
2019-08-261229986ND
2019-08-261229987ND
2019-11-2012782211.50 ppb
2019-11-2012782201.50 ppb
2020-02-031317709ND
2020-02-031317710ND
2020-05-261388115ND
2020-05-261388116ND
2020-08-191500576ND
2020-08-1915005750.570 ppb
2020-11-3016874782.30 ppb
2020-11-3016874772.00 ppb
2021-02-0917695670.670 ppb
2021-02-091769568ND
2021-05-261847534ND
2021-05-261847531ND
2021-08-0919111470.630 ppb
2021-08-0919111480.640 ppb
2021-11-292039826ND
2021-11-292039825ND
2022-02-2221996160.680 ppb
2022-02-2221996151.10 ppb
2022-05-162259388ND
2022-05-162259389ND
2022-08-092329603ND
2022-08-0923296040.530 ppb
2022-11-1623994811.50 ppb
2022-11-1623994822.10 ppb
2023-02-2124535010.700 ppb
2023-02-212453500ND
2023-05-2225044210.500 ppb
2023-05-2225044220.700 ppb
2023-08-2325631131.40 ppb
2023-08-2325631121.60 ppb
2023-11-072607699ND
2023-11-072607698ND