Know Your Environment. Protect Your Health.

Dibromochloromethane

CTWC - Shoreline Region-Guilford System

Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

164

Samples

0

Samples exceeding legal limit (MCL)

131

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.36 ppb2721ND - 3.20 ppb
20191.54 ppb2621ND - 3.60 ppb
20201.20 ppb2823ND - 2.80 ppb
20211.07 ppb2722ND - 2.20 ppb
20221.18 ppb3023ND - 3.30 ppb
20230.984 ppb2621ND - 2.20 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane was 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 and harm to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-16BZ73485VOC10.990 ppb
2018-03-15CA03073TTHM0.560 ppb
2018-03-15CA03074TTHMND
2018-03-15CA03075TTHM0.610 ppb
2018-03-15CA03076TTHM0.620 ppb
2018-03-30CA11464VOC10.740 ppb
2018-04-11CA18261VOC11.000 ppb
2018-06-26CA80045TTHM2.60 ppb
2018-06-26CA80046TTHM2.50 ppb
2018-06-26CA80047TTHM2.00 ppb
2018-06-26CA80048TTHM1.60 ppb
2018-07-09CA85598VOC1ND
2018-07-17CA919791.10 ppb
2018-09-12DBP 2005050422.40 ppb
2018-09-12DBP 2005050433.20 ppb
2018-09-12DBP 2005050442.80 ppb
2018-09-12DBP 2005050473.20 ppb
2018-09-13VOC1 200505275ND
2018-09-13VOC1 200505276ND
2018-09-13VOC1 200505266ND
2018-09-19VOC1 2005061161.30 ppb
2018-09-20VOC1 200506324ND
2018-10-25VOC1 2005105681.000 ppb
2018-12-17DBP 2005162352.00 ppb
2018-12-17DBP 2005162371.90 ppb
2018-12-17DBP 2005162382.20 ppb
2018-12-17DBP 2005162392.50 ppb
2019-01-30VOC1 2005200570.900 ppb
2019-03-11DBP 2005241501.000 ppb
2019-03-11DBP 2005241511.20 ppb
2019-03-11DBP 2005241521.40 ppb
2019-03-11DBP 2005241541.50 ppb
2019-06-14DBP 2005366722.20 ppb
2019-06-14DBP 2005366742.50 ppb
2019-06-14DBP 2005366802.60 ppb
2019-06-14DBP 2005366823.00 ppb
2019-06-24VOC1 2005380051.10 ppb
2019-07-08VOC1 2005411720.900 ppb
2019-07-08VOC1 200539194ND
2019-07-16VOC1 200541091ND
2019-07-16VOC1 2005406481.000 ppb
2019-07-16VOC1 200540644ND
2019-09-17DBP 2005494782.90 ppb
2019-09-17DBP 2005494793.20 ppb
2019-09-17DBP 2005494803.40 ppb
2019-09-17DBP 2005494813.60 ppb
2019-09-17VOC1 200549238ND
2019-09-18VOC1 200549465ND
2019-12-10DBP 2005596421.30 ppb
2019-12-10DBP 2005596431.50 ppb
2019-12-10DBP 2005596441.70 ppb
2019-12-10DBP 2005596451.80 ppb
2019-12-10VOC1 2005596631.30 ppb
2020-01-14VOC1 2005628561.40 ppb
2020-01-20VOC1 200563521ND
2020-01-21VOC1 200563515ND
2020-01-30VOC1 2005646031.40 ppb
2020-02-11VOC1 2005657990.900 ppb
2020-02-25VOC1 200567276ND
2020-03-03DBP 2005679981.10 ppb
2020-03-05DBP 2005685740.600 ppb
2020-03-05DBP 2005685751.000 ppb
2020-03-05DBP 2005685760.800 ppb
2020-04-01VOC1 2005710171.000 ppb
2020-06-16DBP 2005795432.40 ppb
2020-06-16DBP 2005795452.60 ppb
2020-06-16DBP 2005795462.80 ppb
2020-06-16DBP 2005795472.60 ppb
2020-06-16VOC1 2005795330.600 ppb
2020-07-14VOC1 2005827081.000 ppb
2020-07-14VOC1 200582710ND
2020-09-17DBP 2005910511.40 ppb
2020-09-17DBP 2005910521.60 ppb
2020-09-17DBP 2005910531.90 ppb
2020-09-17DBP 2005910541.90 ppb
2020-10-06VOC1 2005928661.000 ppb
2020-10-13VOC1 200593765ND
2020-12-22DBP 2006020300.900 ppb
2020-12-22DBP 2006020311.80 ppb
2020-12-22DBP 2006020321.50 ppb
2020-12-22DBP 2006020331.40 ppb
2021-01-05VOC1 200602753ND
2021-01-06VOC1 2006029960.900 ppb
2021-01-25VOC1 2006047681.20 ppb
2021-03-15DBP 2006098420.700 ppb
2021-03-15DBP 2006098430.800 ppb
2021-03-15DBP 2006098440.900 ppb
2021-03-15DBP 2006098450.800 ppb
2021-06-02DBP 2006192630.900 ppb
2021-06-02DBP 2006192641.000 ppb
2021-06-02DBP 2006192651.000 ppb
2021-06-02DBP 2006192661.10 ppb
2021-06-07VOC1 200621229ND
2021-06-23VOC1 2006220041.20 ppb
2021-06-29VOC1 200622710ND
2021-07-12VOC1 2006242521.40 ppb
2021-07-12VOC1 200624251ND
2021-07-20VOC1 200625447ND
2021-09-14300059734 3000597391.60 ppb
2021-09-14300059735 3000597411.70 ppb
2021-09-14300059736 3000597431.80 ppb
2021-09-14300059737 3000597452.00 ppb
2021-10-11V300077965 3000779660.900 ppb
2021-12-06V300113153 3001131551.50 ppb
2021-12-09D300117672 3001176771.40 ppb
2021-12-09D300117673 3001176791.80 ppb
2021-12-09D300117674 3001176812.20 ppb
2021-12-09D300117675 3001176832.20 ppb
2022-01-11CK140950.920 ppb
2022-01-11CK14105ND
2022-02-28CK761920.940 ppb
2022-03-07CK80900ND
2022-03-09CK835190.800 ppb
2022-03-09CK835200.970 ppb
2022-03-09CK835211.10 ppb
2022-03-25CK952300.960 ppb
2022-04-18CL111741.10 ppb
2022-06-14CL56476ND
2022-06-16CL588442.60 ppb
2022-06-16CL588453.30 ppb
2022-06-16CL588462.60 ppb
2022-06-16CL588472.80 ppb
2022-06-22CL62299ND
2022-07-06CL714571.20 ppb
2022-07-06CL71463ND
2022-07-26CL89875ND
2022-08-02CL959771.000 ppb
2022-08-15CM05635ND
2022-08-29CM178302.40 ppb
2022-09-13CM307141.30 ppb
2022-09-13CM306952.30 ppb
2022-09-13CM306961.50 ppb
2022-09-13CM306972.20 ppb
2022-12-01CM975870.800 ppb
2022-12-01CM975881.30 ppb
2022-12-01CM975891.000 ppb
2022-12-01CM975901.20 ppb
2022-12-19CN082481.20 ppb
2023-01-03CN160521.10 ppb
2023-01-09CN19603ND
2023-01-10CN20796ND
2023-01-10CN207981.10 ppb
2023-02-13CN418580.600 ppb
2023-03-22CN66487ND
2023-03-22CN664880.580 ppb
2023-03-22CN66489ND
2023-03-22CN664900.510 ppb
2023-05-10CO033680.910 ppb
2023-06-13CO272771.60 ppb
2023-06-15CO319961.10 ppb
2023-06-15CO319972.00 ppb
2023-06-15CO319981.70 ppb
2023-06-15CO319991.60 ppb
2023-09-05CO906831.50 ppb
2023-09-05CO906842.10 ppb
2023-09-05CO906851.70 ppb
2023-09-05CO906862.20 ppb
2023-09-18CP024290.930 ppb
2023-11-28CP553220.850 ppb
2023-11-29CP56431ND
2023-12-07CP650780.630 ppb
2023-12-07CP650791.20 ppb
2023-12-07CP650800.700 ppb
2023-12-07CP650810.970 ppb