Know Your Environment. Protect Your Health.

Bromoform

Lafayette Utilities Water System

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.

 

192

Samples

0

Samples exceeding legal limit (MCL)

151

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.975 ppb4828ND - 3.90 ppb
20191.30 ppb48480.700 ppb - 3.60 ppb
20200.917 ppb2419ND - 4.20 ppb
20210.927 ppb2416ND - 3.90 ppb
20221.64 ppb2423ND - 9.30 ppb
20231.88 ppb24240.490 ppb - 8.80 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
2018-01-1235368396001ND
2018-01-12353683960021.80 ppb
2018-01-1235368396003ND
2018-01-12353683960041.10 ppb
2018-01-12353683960051.20 ppb
2018-01-12353683960061.20 ppb
2018-01-1235368396001ND
2018-01-12353683960021.80 ppb
2018-01-1235368396003ND
2018-01-12353683960041.10 ppb
2018-01-12353683960051.20 ppb
2018-01-12353683960061.20 ppb
2018-04-05353846770011.30 ppb
2018-04-0535384677002ND
2018-04-0535384677003ND
2018-04-0535384677004ND
2018-04-0535384677005ND
2018-04-05353846770061.10 ppb
2018-04-05353846770011.30 ppb
2018-04-0535384677002ND
2018-04-0535384677003ND
2018-04-0535384677004ND
2018-04-0535384677005ND
2018-04-05353846770061.10 ppb
2018-07-31354078980011.60 ppb
2018-07-31354078980022.00 ppb
2018-07-31354078980031.20 ppb
2018-07-31354078980041.60 ppb
2018-07-31354078980052.10 ppb
2018-07-31354078980061.20 ppb
2018-07-31354078980011.60 ppb
2018-07-31354078980022.00 ppb
2018-07-31354078980031.20 ppb
2018-07-31354078980041.60 ppb
2018-07-31354078980052.10 ppb
2018-07-31354078980061.20 ppb
2018-10-1835425428001ND
2018-10-18354254280022.10 ppb
2018-10-1835425428003ND
2018-10-1835425428004ND
2018-10-18354254280053.90 ppb
2018-10-1835425428006ND
2018-10-1835425428001ND
2018-10-18354254280022.10 ppb
2018-10-1835425428003ND
2018-10-1835425428004ND
2018-10-18354254280053.90 ppb
2018-10-1835425428006ND
2019-01-10354418630010.750 ppb
2019-01-10354418630021.50 ppb
2019-01-10354418630031.10 ppb
2019-01-10354418630040.700 ppb
2019-01-10354418630051.40 ppb
2019-01-10354418630060.780 ppb
2019-01-10354418630010.750 ppb
2019-01-10354418630021.50 ppb
2019-01-10354418630031.10 ppb
2019-01-10354418630040.700 ppb
2019-01-10354418630051.40 ppb
2019-01-10354418630060.780 ppb
2019-04-11354615510010.770 ppb
2019-04-11354615510021.60 ppb
2019-04-11354615510031.20 ppb
2019-04-11354615510040.970 ppb
2019-04-11354615510051.000 ppb
2019-04-11354615510060.980 ppb
2019-04-11354615510010.770 ppb
2019-04-11354615510021.60 ppb
2019-04-11354615510031.20 ppb
2019-04-11354615510040.970 ppb
2019-04-11354615510051.000 ppb
2019-04-11354615510060.980 ppb
2019-07-19354837950011.30 ppb
2019-07-19354837950021.70 ppb
2019-07-19354837950031.10 ppb
2019-07-19354837950040.940 ppb
2019-07-19354837950053.60 ppb
2019-07-19354837950061.10 ppb
2019-07-19354837950011.30 ppb
2019-07-19354837950021.70 ppb
2019-07-19354837950031.10 ppb
2019-07-19354837950040.940 ppb
2019-07-19354837950053.60 ppb
2019-07-19354837950061.10 ppb
2019-10-18355062600010.970 ppb
2019-10-18355062600021.60 ppb
2019-10-18355062600031.30 ppb
2019-10-18355062600040.810 ppb
2019-10-18355062600053.20 ppb
2019-10-18355062600060.860 ppb
2019-10-18355062600010.970 ppb
2019-10-18355062600021.60 ppb
2019-10-18355062600031.30 ppb
2019-10-18355062600040.810 ppb
2019-10-18355062600053.20 ppb
2019-10-18355062600060.860 ppb
2020-01-0335521914001ND
2020-01-0335521914002ND
2020-01-0335521914003ND
2020-01-0335521914004ND
2020-01-03355219140051.20 ppb
2020-01-0335521914006ND
2020-04-17355445730010.580 ppb
2020-04-17355445730020.660 ppb
2020-04-17355445730030.430 ppb
2020-04-17355445730040.580 ppb
2020-04-17355445730051.50 ppb
2020-04-17355445730061.60 ppb
2020-07-17355642400010.360 ppb
2020-07-17355642400020.830 ppb
2020-07-17355642400030.510 ppb
2020-07-17355642400040.770 ppb
2020-07-17355642400053.90 ppb
2020-07-17355642400060.690 ppb
2020-10-23355872450010.460 ppb
2020-10-23355872450021.30 ppb
2020-10-23355872450030.910 ppb
2020-10-23355872450040.760 ppb
2020-10-23355872450054.20 ppb
2020-10-23355872450060.760 ppb
2021-01-2135606716001ND
2021-01-21356067160020.710 ppb
2021-01-21356067160030.870 ppb
2021-01-21356067160041.40 ppb
2021-01-21356067160051.20 ppb
2021-01-21356067160061.40 ppb
2021-04-1535626825001ND
2021-04-15356268250020.570 ppb
2021-04-15356268250030.730 ppb
2021-04-15356268250040.750 ppb
2021-04-15356268250051.80 ppb
2021-04-15356268250060.800 ppb
2021-07-1635648545001ND
2021-07-16356485450022.00 ppb
2021-07-16356485450031.40 ppb
2021-07-16356485450040.880 ppb
2021-07-16356485450053.00 ppb
2021-07-16356485450060.840 ppb
2021-10-0835670558001ND
2021-10-0835670558002ND
2021-10-0835670558003ND
2021-10-0835670558004ND
2021-10-08356705580053.90 ppb
2021-10-0835670558006ND
2022-01-0735689217001ND
2022-01-07356892170020.560 ppb
2022-01-07356892170030.450 ppb
2022-01-07356892170040.710 ppb
2022-01-07356892170052.80 ppb
2022-01-07356892170060.750 ppb
2022-04-01357074910010.810 ppb
2022-04-01357074910021.60 ppb
2022-04-01357074910031.30 ppb
2022-04-01357074910041.10 ppb
2022-04-01357074910051.30 ppb
2022-04-01357074910065.00 ppb
2022-07-14357319890010.500 ppb
2022-07-14357319890020.730 ppb
2022-07-14357319890030.440 ppb
2022-07-14357319890040.840 ppb
2022-07-14357319890054.40 ppb
2022-07-14357319890060.940 ppb
2022-10-07357518630010.670 ppb
2022-10-07357518630022.00 ppb
2022-10-07357518630031.50 ppb
2022-10-07357518630040.840 ppb
2022-10-07357518630059.30 ppb
2022-10-07357518630060.870 ppb
2023-01-12357728070010.490 ppb
2023-01-12357728070021.50 ppb
2023-01-12357728070030.890 ppb
2023-01-12357728070040.830 ppb
2023-01-12357728070053.00 ppb
2023-01-12357728070060.970 ppb
2023-04-14357929000010.960 ppb
2023-04-14357929000021.60 ppb
2023-04-14357929000031.20 ppb
2023-04-14357929000040.940 ppb
2023-04-14357929000058.80 ppb
2023-04-14357929000061.000 ppb
2023-07-07358114360010.590 ppb
2023-07-07358114360021.70 ppb
2023-07-07358114360031.10 ppb
2023-07-07358114360040.790 ppb
2023-07-07358114360055.40 ppb
2023-07-07358114360060.870 ppb
2023-10-13358346660010.690 ppb
2023-10-13358346660021.60 ppb
2023-10-13358346660031.30 ppb
2023-10-13358346660040.910 ppb
2023-10-13358346660057.00 ppb
2023-10-13358346660060.880 ppb