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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Meriden Water Division

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.

MORE ABOUT THIS CONTAMINANT

 

313

Samples

0

Samples exceeding legal limit (MCL)

240

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20141.54 ppb4730ND - 6.10 ppb
20151.52 ppb4529ND - 5.60 ppb
20161.54 ppb4134ND - 4.50 ppb
20170.969 ppb4229ND - 4.20 ppb
20181.10 ppb6855ND - 4.20 ppb
20191.61 ppb7063ND - 5.70 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane 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
2014-01-02BF94398VOC10.510 ppb
2014-01-16BF99879VOC1ND
2014-02-14BG09514TTHM0.980 ppb
2014-02-14BG09515TTHM1.000 ppb
2014-02-14BG09516TTHMND
2014-02-14BG09517TTHM4.00 ppb
2014-02-14BG09518TTHM3.90 ppb
2014-02-14BG09519TTHM0.560 ppb
2014-02-14BG09520TTHMND
2014-02-14BG09521TTHM1.000 ppb
2014-03-13BG18736VOC1ND
2014-03-13BG18740VOC1ND
2014-04-16BG33991VOC1ND
2014-04-16BG33992VOC1ND
2014-05-15BG45065TTHM3.50 ppb
2014-05-15BG45066TTHM3.40 ppb
2014-05-15BG45067TTHMND
2014-05-15BG45068TTHMND
2014-05-15BG45069TTHM0.710 ppb
2014-05-15BG45070TTHM4.10 ppb
2014-05-15BG45071TTHM1.60 ppb
2014-05-15BG45072TTHMND
2014-07-10BG72730VOC1ND
2014-07-10BG72731VOC10.670 ppb
2014-07-10BG72732VOC1ND
2014-07-10BG72733VOC11.40 ppb
2014-07-10BG72734VOC1ND
2014-07-10BG72735VOC1ND
2014-07-10BG72736VOC10.530 ppb
2014-08-14BG94191TTHM1.80 ppb
2014-08-14BG94192TTHM0.820 ppb
2014-08-14BG94193TTHM0.680 ppb
2014-08-14BG94194TTHM0.910 ppb
2014-08-14BG94195TTHM4.70 ppb
2014-08-14BG94196TTHM2.80 ppb
2014-08-14BG94197TTHMND
2014-08-14BG94198TTHM3.40 ppb
2014-10-09BH25466VOC1ND
2014-10-09BH25467VOC1ND
2014-11-13BH40776TTHM3.70 ppb
2014-11-13BH40777TTHM3.10 ppb
2014-11-13BH40778TTHM0.820 ppb
2014-11-13BH40779TTHM5.90 ppb
2014-11-13BH40780TTHM6.10 ppb
2014-11-13BH40781TTHM3.90 ppb
2014-11-13BH40782TTHM1.000 ppb
2014-11-13BH40783TTHM4.90 ppb
2015-01-15BH63607VOC1ND
2015-01-15BH63608VOC1ND
2015-02-11BH73149TTHM3.30 ppb
2015-02-11BH73151TTHM1.90 ppb
2015-02-11BH73148TTHMND
2015-02-11BH73153TTHM3.50 ppb
2015-02-11BH73147TTHM1.30 ppb
2015-02-11BH73150TTHM3.90 ppb
2015-02-11BH73146TTHM1.50 ppb
2015-02-13BH73314TTHMND
2015-04-09BJ00527VOC1ND
2015-05-13BJ16043TTHMND
2015-05-13BJ16042TTHM1.60 ppb
2015-05-13BJ16048TTHM4.20 ppb
2015-05-13BJ16046TTHM2.20 ppb
2015-05-13BJ16041TTHM3.00 ppb
2015-05-13BJ16045TTHM4.00 ppb
2015-05-13BJ16044TTHM0.660 ppb
2015-05-13BJ16047TTHMND
2015-06-18BJ33375VOC1ND
2015-06-18BJ33376VOC1ND
2015-06-18BJ33377VOC1ND
2015-06-18BJ33378VOC11.30 ppb
2015-06-18BJ33379VOC1ND
2015-06-18BJ33380VOC1ND
2015-06-18BJ33381VOC10.590 ppb
2015-07-22BJ62367VOC1ND
2015-08-13BJ74117TTHM1.60 ppb
2015-08-13BJ74122TTHM4.00 ppb
2015-08-13BJ74124TTHM4.20 ppb
2015-08-13BJ74121TTHM5.60 ppb
2015-08-13BJ74118TTHM0.510 ppb
2015-08-13BJ74119TTHM0.760 ppb
2015-08-13BJ74123TTHM0.590 ppb
2015-08-13BJ74120TTHM0.820 ppb
2015-10-22BK12423VOC1ND
2015-11-12BK22060TTHM4.70 ppb
2015-11-12BK22055TTHM3.30 ppb
2015-11-12BK22056TTHM2.00 ppb
2015-11-12BK22057TTHM0.600 ppb
2015-11-12BK22062TTHM4.40 ppb
2015-11-12BK22058TTHMND
2015-11-12BK22061TTHM0.650 ppb
2015-11-12BK22059TTHM1.50 ppb
2015-11-19BK25835VOC1ND
2016-02-11BK64212TTHM0.580 ppb
2016-02-11BK64213TTHM0.580 ppb
2016-02-11BK64214TTHMND
2016-02-11BK64215TTHM3.00 ppb
2016-02-11BK64216TTHM3.30 ppb
2016-02-11BK64217TTHM0.560 ppb
2016-02-11BK64218TTHM0.620 ppb
2016-02-11BK64219TTHM2.10 ppb
2016-03-03BK72987VOC1ND
2016-04-14BN13851VOC1ND
2016-05-12BN31089TTHM0.780 ppb
2016-05-12BN31090TTHM0.800 ppb
2016-05-12BN31091TTHM1.40 ppb
2016-05-12BN31092TTHM3.60 ppb
2016-05-12BN31093TTHM3.70 ppb
2016-05-12BN31094TTHM1.80 ppb
2016-05-12BN31095TTHM0.770 ppb
2016-05-12BN31096TTHM2.90 ppb
2016-06-30BN65088VOC1ND
2016-06-30BN65089VOC10.810 ppb
2016-06-30BN65090VOC10.850 ppb
2016-06-30BN65091VOC11.70 ppb
2016-06-30BN65092VOC1ND
2016-06-30BN65093VOC1ND
2016-07-14BN73019VOC1ND
2016-08-11BN90757TTHM1.000 ppb
2016-08-11BN90758TTHM1.10 ppb
2016-08-11BN90759TTHM0.780 ppb
2016-08-11BN90760TTHM4.10 ppb
2016-08-11BN90761TTHM4.50 ppb
2016-08-11BN90762TTHM4.40 ppb
2016-08-11BN90763TTHM0.770 ppb
2016-08-11BN90764TTHM2.30 ppb
2016-11-16BV86932TTHM0.560 ppb
2016-11-16BV86933TTHM0.540 ppb
2016-11-16BV86934TTHM0.660 ppb
2016-11-16BV86935TTHM2.90 ppb
2016-11-16BV86936TTHM2.80 ppb
2016-11-16BV86937TTHM3.90 ppb
2016-11-16BV86938TTHM0.590 ppb
2016-11-16BV86939TTHM2.30 ppb
2017-02-16BX68635TTHM0.510 ppb
2017-02-16BX68636TTHM0.510 ppb
2017-02-16BX68637TTHMND
2017-02-16BX68638TTHMND
2017-02-16BX68639TTHM1.30 ppb
2017-02-16BX68640TTHM1.30 ppb
2017-02-16BX68641TTHMND
2017-02-16BX68642TTHM2.30 ppb
2017-04-06BY00212VOC1ND
2017-05-11BY18976TTHM0.670 ppb
2017-05-11BY18977TTHM0.670 ppb
2017-05-11BY18978TTHMND
2017-05-11BY18979TTHMND
2017-05-11BY18980TTHM1.50 ppb
2017-05-11BY18981TTHM1.80 ppb
2017-05-11BY18982TTHM0.640 ppb
2017-05-11BY18983TTHM1.20 ppb
2017-06-15BY40610VOC1ND
2017-06-15BY40611VOC1ND
2017-06-15BY40612VOC1ND
2017-06-15BY40613VOC1ND
2017-06-22BY44703VOC1ND
2017-06-29BY50178VOC10.630 ppb
2017-07-20BY68706VOC10.530 ppb
2017-08-10BY82544TTHM0.960 ppb
2017-08-10BY82545TTHM0.940 ppb
2017-08-10BY82546TTHM1.30 ppb
2017-08-10BY82547TTHM0.590 ppb
2017-08-10BY82548TTHM3.00 ppb
2017-08-10BY82549TTHM4.20 ppb
2017-08-10BY82550TTHM1.10 ppb
2017-08-10BY82551TTHM2.00 ppb
2017-08-17BY86088VOC11.80 ppb
2017-10-05BZ15616VOC1ND
2017-11-09BZ38914TTHM0.660 ppb
2017-11-09BZ38915TTHM0.740 ppb
2017-11-09BZ38916TTHMND
2017-11-09BZ38917TTHM2.10 ppb
2017-11-09BZ38918TTHM1.60 ppb
2017-11-09BZ38919TTHM4.00 ppb
2017-11-09BZ38920TTHM0.630 ppb
2017-11-09BZ38921TTHM1.50 ppb
2018-01-18BZ74951VOC1ND
2018-02-08BZ86181TTHM0.650 ppb
2018-02-08BZ86182TTHM0.620 ppb
2018-02-08BZ86183TTHM0.560 ppb
2018-02-08BZ86184TTHMND
2018-02-08BZ86185TTHM1.40 ppb
2018-02-08BZ86186TTHM1.90 ppb
2018-02-08BZ86187TTHM0.690 ppb
2018-02-08BZ86188TTHM1.10 ppb
2018-03-12CA01226TTHM0.900 ppb
2018-03-12CA01227TTHM0.920 ppb
2018-03-12CA01228TTHM0.990 ppb
2018-04-12CA19004TTHM0.930 ppb
2018-04-12CA19005TTHM0.860 ppb
2018-04-12CA19006TTHM0.920 ppb
2018-05-10CA44958TTHM0.840 ppb
2018-05-10CA44959TTHM0.840 ppb
2018-05-10CA44960TTHMND
2018-05-10CA44961TTHMND
2018-05-10CA44962TTHM0.920 ppb
2018-05-10CA44963TTHM1.50 ppb
2018-05-10CA44964TTHM0.620 ppb
2018-05-10CA44965TTHM0.870 ppb
2018-05-17CA49083VOC1ND
2018-06-07CA65949TTHM1.30 ppb
2018-06-07CA65950TTHM1.30 ppb
2018-06-07CA65951TTHM2.50 ppb
2018-07-12CA88491TTHM1.70 ppb
2018-07-12CA88492TTHM1.60 ppb
2018-07-12CA88493TTHM2.70 ppb
2018-07-19CA94410ND
2018-07-19CA944110.950 ppb
2018-07-19CA944120.790 ppb
2018-07-19CA94413ND
2018-07-26CA987190.520 ppb
2018-08-09CB082671.50 ppb
2018-08-09CB082681.40 ppb
2018-08-09CB082691.30 ppb
2018-08-09CB082703.00 ppb
2018-08-09CB082714.20 ppb
2018-08-09CB082723.30 ppb
2018-08-09CB082731.000 ppb
2018-08-09CB082743.10 ppb
2018-08-09CB08263ND
2018-08-23CB174410.600 ppb
2018-09-13CB307171.10 ppb
2018-09-13CB307180.970 ppb
2018-09-13CB307192.30 ppb
2018-09-20CB355081.90 ppb
2018-09-20CB35511ND
2018-09-27CB59877ND
2018-10-11CB698760.960 ppb
2018-10-11CB698770.880 ppb
2018-10-11CB698782.90 ppb
2018-10-11CB69872ND
2018-11-14CB973840.550 ppb
2018-11-14CB973850.520 ppb
2018-11-14CB97386ND
2018-11-14CB973873.00 ppb
2018-11-14CB97371ND
2018-11-20CC026151.80 ppb
2018-11-20CC026160.650 ppb
2018-11-20CC026170.920 ppb
2018-11-20CC026181.60 ppb
2018-12-07CC110540.590 ppb
2018-12-12CC128390.600 ppb
2018-12-12CC128400.590 ppb
2018-12-12CC128412.30 ppb
2019-01-09CC261590.580 ppb
2019-01-09CC261600.630 ppb
2019-01-09CC261611.90 ppb
2019-02-06CC418051.70 ppb
2019-02-13CC514400.800 ppb
2019-02-13CC514410.750 ppb
2019-02-13CC51442ND
2019-02-13CC514430.910 ppb
2019-02-13CC514440.860 ppb
2019-02-13CC514451.20 ppb
2019-02-13CC51446ND
2019-02-13CC514470.730 ppb
2019-03-13CC673360.760 ppb
2019-03-13CC673370.770 ppb
2019-03-13CC673380.790 ppb
2019-04-10CC921731.70 ppb
2019-04-10CC921741.50 ppb
2019-04-10CC921751.10 ppb
2019-04-25CD015510.560 ppb
2019-05-08CD092631.40 ppb
2019-05-08CD092641.50 ppb
2019-05-08CD092650.580 ppb
2019-05-08CD092662.40 ppb
2019-05-08CD092672.90 ppb
2019-05-08CD092683.40 ppb
2019-05-08CD092691.000 ppb
2019-05-08CD092702.20 ppb
2019-05-08CD092720.550 ppb
2019-06-12CD332131.80 ppb
2019-06-12CD332141.80 ppb
2019-06-12CD332152.70 ppb
2019-06-19CD38010ND
2019-06-19CD38011ND
2019-06-19CD38012ND
2019-06-26CD42474ND
2019-06-26CD424750.620 ppb
2019-06-26CD424760.830 ppb
2019-07-10CD535382.10 ppb
2019-07-10CD535392.10 ppb
2019-07-10CD535404.00 ppb
2019-07-10CD535330.580 ppb
2019-08-07CD800980.580 ppb
2019-08-14CD849841.90 ppb
2019-08-14CD849852.10 ppb
2019-08-14CD849861.50 ppb
2019-08-14CD849875.30 ppb
2019-08-14CD849885.50 ppb
2019-08-14CD849893.90 ppb
2019-08-14CD849902.00 ppb
2019-08-14CD849913.80 ppb
2019-09-04CD973700.630 ppb
2019-09-11CE065281.50 ppb
2019-09-11CE065291.40 ppb
2019-09-11CE065305.70 ppb
2019-10-02CE255480.550 ppb
2019-10-09CE299471.20 ppb
2019-10-09CE299481.10 ppb
2019-10-09CE299495.50 ppb
2019-11-06CE552160.570 ppb
2019-11-14CE605701.30 ppb
2019-11-14CE605711.10 ppb
2019-11-14CE60572ND
2019-11-14CE605732.30 ppb
2019-11-14CE605742.20 ppb
2019-11-14CE605753.00 ppb
2019-11-14CE605760.580 ppb
2019-11-14CE605772.90 ppb
2019-12-11CE850821.10 ppb
2019-12-11CE850831.000 ppb
2019-12-11CE850842.80 ppb