Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Bromodichloromethane

Carson City Public Works

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

MORE ABOUT THIS CONTAMINANT

 

253

Samples

0

Samples exceeding legal limit (MCL)

148

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.16 ppb3628ND - 5.56 ppb
20150.577 ppb5826ND - 2.93 ppb
20160.885 ppb3323ND - 3.63 ppb
20171.16 ppb3723ND - 4.01 ppb
20180.733 ppb5223ND - 5.44 ppb
20190.990 ppb3725ND - 4.75 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-282014013001745.56 ppb
2014-01-282014013001750.940 ppb
2014-01-282014013001760.640 ppb
2014-01-282014013001771.11 ppb
2014-01-282014013001781.48 ppb
2014-01-282014013001791.99 ppb
2014-01-282014013001801.61 ppb
2014-01-282014013001811.86 ppb
2014-02-24201402260926-VND
2014-04-082014041202484.55 ppb
2014-04-08201404120249ND
2014-04-082014041202500.790 ppb
2014-04-082014041202510.720 ppb
2014-04-08201404120252ND
2014-04-082014041202530.770 ppb
2014-04-082014041202542.01 ppb
2014-04-082014041202550.710 ppb
2014-05-27201405280593-V0.810 ppb
2014-07-01201407020370ND
2014-07-282014073002632.62 ppb
2014-07-282014073002640.700 ppb
2014-07-282014073002651.31 ppb
2014-07-28201407300266ND
2014-07-282014073002672.04 ppb
2014-07-282014073002680.880 ppb
2014-07-282014073002691.97 ppb
2014-07-282014073002701.03 ppb
2014-09-04201409050252ND
2014-10-272014102904401.54 ppb
2014-10-27201410290441ND
2014-10-272014102904420.900 ppb
2014-10-272014102904430.750 ppb
2014-10-272014102904440.770 ppb
2014-10-272014102904450.880 ppb
2014-10-272014102904460.950 ppb
2014-10-27201410290447ND
2015-01-262015012807172.16 ppb
2015-01-262015012807180.680 ppb
2015-01-262015012807191.03 ppb
2015-01-26201501280720ND
2015-01-262015012807211.17 ppb
2015-01-262015012807221.41 ppb
2015-01-262015012807231.36 ppb
2015-01-262015012807241.64 ppb
2015-04-282015043001122.93 ppb
2015-04-28201504300113ND
2015-04-282015043001141.08 ppb
2015-04-282015043001150.650 ppb
2015-04-282015043001160.820 ppb
2015-04-282015043001172.15 ppb
2015-04-28201504300118ND
2015-04-282015043001190.560 ppb
2015-05-19201505210392VND
2015-05-19201505210480V0.520 ppb
2015-05-19201505210341VND
2015-05-19201505210388VND
2015-05-20201505210403VND
2015-05-20201505210412VND
2015-05-20201505210405-VOCND
2015-05-21201505220242VND
2015-05-21201505220202V1.80 ppb
2015-05-21201505220247-VOCND
2015-06-01201506030407-VOCND
2015-06-01201506030355-VOCND
2015-06-012015506030247-VOND
2015-06-01201506030333-VOCND
2015-06-09201506120280-VOCND
2015-06-09201506120278-VOCND
2015-06-11201506120209-VOCND
2015-06-11201506120140-VOCND
2015-06-29201506300124-VOCND
2015-06-29201506300177-VOCND
2015-06-30201507010430-VOCND
2015-06-30201507160442-VOCND
2015-07-282015073002291.84 ppb
2015-07-282015073002301.97 ppb
2015-07-282015073002311.56 ppb
2015-07-28201507300232ND
2015-07-282015073002330.890 ppb
2015-07-282015073002341.67 ppb
2015-07-282015073002350.740 ppb
2015-07-282015073002361.06 ppb
2015-08-03201508040410-VOCND
2015-08-04201508050421-VOCND
2015-08-10201508110263-VOCND
2015-09-15201509020134-VOCND
2015-10-122015101405390.790 ppb
2015-10-12201510140540ND
2015-10-122015101405411.24 ppb
2015-10-12201510140542ND
2015-10-122015101405430.670 ppb
2015-10-12201510140544ND
2015-10-122015101405451.05 ppb
2015-10-12201510140546ND
2016-01-202016012202252.00 ppb
2016-01-202016012202261.12 ppb
2016-01-202016012202270.900 ppb
2016-01-202016012202282.34 ppb
2016-01-202016012202291.15 ppb
2016-01-202016012202301.46 ppb
2016-01-202016012202311.41 ppb
2016-01-202016012202321.59 ppb
2016-04-262016042803782.37 ppb
2016-04-262016042803790.820 ppb
2016-04-262016042803800.780 ppb
2016-04-262016042803810.740 ppb
2016-04-262016042803821.06 ppb
2016-04-26201604280383ND
2016-04-272016042803840.790 ppb
2016-04-272016042803851.02 ppb
2016-06-22201606230265-VOC0.640 ppb
2016-07-27201602804202.23 ppb
2016-07-272016072804210.590 ppb
2016-07-27201607280422ND
2016-07-27201607280423ND
2016-07-27201607280424ND
2016-07-27201607280425ND
2016-07-272016072804260.560 ppb
2016-07-27201607280430ND
2016-10-122016101305123.63 ppb
2016-10-122016101305130.540 ppb
2016-10-12201610130514ND
2016-10-122016101305150.880 ppb
2016-10-12201610130516ND
2016-10-12201610130517ND
2016-10-12201610130518ND
2016-10-122016101305190.600 ppb
2017-01-252017012704283.02 ppb
2017-01-25201701270429ND
2017-01-252017012704302.81 ppb
2017-01-252017012704312.29 ppb
2017-01-252017012704332.55 ppb
2017-01-252017012704343.32 ppb
2017-01-252017012704351.78 ppb
2017-01-25201712704322.61 ppb
2017-02-212017022209282.96 ppb
2017-04-242017042607634.01 ppb
2017-04-242017042607640.740 ppb
2017-04-24201704260765ND
2017-04-242017042607660.520 ppb
2017-04-242017042607672.16 ppb
2017-04-242017042607681.67 ppb
2017-04-242017042607690.670 ppb
2017-04-242017042607701.50 ppb
2017-05-15201705160571ND
2017-05-16201705170782-VOCND
2017-05-23201705240769ND
2017-06-21201706220614ND
2017-07-182017071906903.76 ppb
2017-07-182017071906910.560 ppb
2017-07-18201707190692ND
2017-07-18201707190693ND
2017-07-182017071906940.610 ppb
2017-07-182017071906950.500 ppb
2017-07-182017071906960.680 ppb
2017-07-18201707190697ND
2017-10-052017100601502.84 ppb
2017-10-05201710060152ND
2017-10-05201710060153ND
2017-10-05201710060154ND
2017-10-052017100601550.680 ppb
2017-10-052017100601560.700 ppb
2017-10-05201710060157ND
2017-10-16201710170612ND
2018-02-272018022804325.44 ppb
2018-02-272018022804351.41 ppb
2018-02-27201802280436ND
2018-02-272018022804371.91 ppb
2018-02-272018022804381.31 ppb
2018-02-272018022804391.73 ppb
2018-02-272018022804401.95 ppb
2018-02-272018022804411.74 ppb
2018-04-26201804300373ND
2018-05-102018051106395.02 ppb
2018-05-102018051106401.13 ppb
2018-05-10201805110641ND
2018-05-10201805110642ND
2018-05-10201805110643ND
2018-05-10201805110644ND
2018-05-10201805110645ND
2018-05-102018051106461.39 ppb
2018-05-15201805161020ND
2018-05-24201805250730ND
2018-05-30201805310575ND
2018-05-31201806010519ND
2018-07-23201807240376ND
2018-07-242018072604382.53 ppb
2018-07-242018072604392.50 ppb
2018-07-242018072604401.65 ppb
2018-07-24201807260441ND
2018-07-242018072604420.540 ppb
2018-07-24201807260443ND
2018-07-242018072604441.05 ppb
2018-07-242018072604450.580 ppb
2018-08-09201808110163ND
2018-08-14201808160451ND
2018-08-14201808160455ND
2018-09-13201809140770ND
2018-09-13201809140813-VOCND
2018-09-18201809190678ND
2018-09-19201809200852ND
2018-10-16201810170779ND
2018-10-16201810170780ND
2018-10-16201810180738AND
2018-10-16201810180748AND
2018-10-17201810190329AND
2018-10-18201810190370AND
2018-10-182018101906001.82 ppb
2018-10-18201810190601ND
2018-10-182018101906020.770 ppb
2018-10-182018101906030.630 ppb
2018-10-182018101906040.760 ppb
2018-10-182018101906050.710 ppb
2018-10-182018101906060.810 ppb
2018-10-182018101906070.710 ppb
2018-11-26201811270444ND
2019-01-232019012404274.75 ppb
2019-01-232019012404281.000 ppb
2019-01-23201901240429ND
2019-01-232019012404300.760 ppb
2019-01-232019012404311.18 ppb
2019-01-232019012404321.51 ppb
2019-01-232019012404331.22 ppb
2019-01-23201901240434ND
2019-04-232019042502211.16 ppb
2019-04-232019042502221.96 ppb
2019-04-232019042502231.36 ppb
2019-04-232019042502241.76 ppb
2019-04-242019042502252.18 ppb
2019-04-242019042502261.98 ppb
2019-04-242019042502272.17 ppb
2019-04-242019042502281.27 ppb
2019-06-24201906250202A0.530 ppb
2019-06-26201906270391ND
2019-07-232019072404741.22 ppb
2019-07-232019072404751.60 ppb
2019-07-232019072404760.860 ppb
2019-07-232019072404771.08 ppb
2019-07-232019072404780.690 ppb
2019-07-232019072404791.42 ppb
2019-07-23201907240480ND
2019-07-23201907240481ND
2019-08-21201908220455AND
2019-08-22201908230667AND
2019-09-24201909250291ND
2019-09-24201909250649AND
2019-10-222019102307172.54 ppb
2019-10-222019102307190.880 ppb
2019-10-22201910230720ND
2019-10-22201910230721ND
2019-10-222019102307220.920 ppb
2019-10-222019102307230.640 ppb
2019-10-22201910230724ND