Know Your Environment. Protect Your Health.

Bromodichloromethane

Meriden Water Division

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.

 

400

Samples

0

Samples exceeding legal limit (MCL)

359

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20186.58 ppb6858ND - 15.0 ppb
20196.38 ppb7060ND - 15.0 ppb
20207.01 ppb6761ND - 16.0 ppb
20216.40 ppb6558ND - 16.0 ppb
20227.78 ppb6661ND - 17.0 ppb
20236.61 ppb6461ND - 15.0 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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
2018-01-18BZ74951VOC1ND
2018-02-08BZ86181TTHM7.80 ppb
2018-02-08BZ86182TTHM7.70 ppb
2018-02-08BZ86183TTHM4.20 ppb
2018-02-08BZ86184TTHM4.60 ppb
2018-02-08BZ86185TTHM8.70 ppb
2018-02-08BZ86186TTHM3.10 ppb
2018-02-08BZ86187TTHM6.60 ppb
2018-02-08BZ86188TTHM8.10 ppb
2018-03-12CA01226TTHM7.80 ppb
2018-03-12CA01227TTHM7.50 ppb
2018-03-12CA01228TTHM8.40 ppb
2018-04-12CA19004TTHM7.80 ppb
2018-04-12CA19005TTHM7.20 ppb
2018-04-12CA19006TTHM7.90 ppb
2018-05-10CA44958TTHM6.30 ppb
2018-05-10CA44959TTHM6.10 ppb
2018-05-10CA44960TTHM3.00 ppb
2018-05-10CA44961TTHM4.70 ppb
2018-05-10CA44962TTHM8.00 ppb
2018-05-10CA44963TTHM3.40 ppb
2018-05-10CA44964TTHM5.30 ppb
2018-05-10CA44965TTHM6.70 ppb
2018-05-17CA49083VOC1ND
2018-06-07CA65949TTHM8.30 ppb
2018-06-07CA65950TTHM8.40 ppb
2018-06-07CA65951TTHM10.00 ppb
2018-07-12CA88491TTHM10.00 ppb
2018-07-12CA88492TTHM10.00 ppb
2018-07-12CA88493TTHM11.0 ppb
2018-07-19CA944104.40 ppb
2018-07-19CA944117.80 ppb
2018-07-19CA944124.30 ppb
2018-07-19CA94413ND
2018-07-26CA98719ND
2018-08-09CB0826711.0 ppb
2018-08-09CB0826811.0 ppb
2018-08-09CB082698.70 ppb
2018-08-09CB0827013.0 ppb
2018-08-09CB0827114.0 ppb
2018-08-09CB0827215.0 ppb
2018-08-09CB082738.30 ppb
2018-08-09CB0827412.0 ppb
2018-08-09CB08263ND
2018-08-23CB174415.80 ppb
2018-09-13CB307179.80 ppb
2018-09-13CB3071810.00 ppb
2018-09-13CB3071912.0 ppb
2018-09-20CB355082.90 ppb
2018-09-20CB35511ND
2018-09-27CB59877ND
2018-10-11CB698767.70 ppb
2018-10-11CB698777.60 ppb
2018-10-11CB698789.40 ppb
2018-10-11CB69872ND
2018-11-14CB973845.60 ppb
2018-11-14CB973855.70 ppb
2018-11-14CB973865.10 ppb
2018-11-14CB973878.40 ppb
2018-11-14CB97371ND
2018-11-20CC026158.00 ppb
2018-11-20CC026167.30 ppb
2018-11-20CC026176.00 ppb
2018-11-20CC026188.30 ppb
2018-12-07CC11054ND
2018-12-12CC128396.10 ppb
2018-12-12CC128406.30 ppb
2018-12-12CC128417.50 ppb
2019-01-09CC261595.40 ppb
2019-01-09CC261605.70 ppb
2019-01-09CC261616.60 ppb
2019-02-06CC418052.20 ppb
2019-02-13CC514404.90 ppb
2019-02-13CC514415.10 ppb
2019-02-13CC514423.00 ppb
2019-02-13CC514435.90 ppb
2019-02-13CC514445.50 ppb
2019-02-13CC514452.30 ppb
2019-02-13CC514462.40 ppb
2019-02-13CC514474.90 ppb
2019-03-13CC673364.80 ppb
2019-03-13CC673375.20 ppb
2019-03-13CC673385.60 ppb
2019-04-10CC921736.20 ppb
2019-04-10CC921746.30 ppb
2019-04-10CC921757.10 ppb
2019-04-25CD01551ND
2019-05-08CD092637.40 ppb
2019-05-08CD092647.30 ppb
2019-05-08CD092654.10 ppb
2019-05-08CD092669.70 ppb
2019-05-08CD0926711.0 ppb
2019-05-08CD092687.00 ppb
2019-05-08CD092695.80 ppb
2019-05-08CD092707.70 ppb
2019-05-08CD09272ND
2019-06-12CD332138.20 ppb
2019-06-12CD332148.30 ppb
2019-06-12CD3321510.00 ppb
2019-06-19CD38010ND
2019-06-19CD38011ND
2019-06-19CD38012ND
2019-06-26CD424743.80 ppb
2019-06-26CD424755.10 ppb
2019-06-26CD424763.40 ppb
2019-07-10CD5353810.00 ppb
2019-07-10CD5353910.00 ppb
2019-07-10CD5354014.0 ppb
2019-07-10CD53533ND
2019-08-07CD80098ND
2019-08-14CD8498411.0 ppb
2019-08-14CD8498511.0 ppb
2019-08-14CD849864.70 ppb
2019-08-14CD8498714.0 ppb
2019-08-14CD8498814.0 ppb
2019-08-14CD849897.80 ppb
2019-08-14CD8499010.00 ppb
2019-08-14CD849918.70 ppb
2019-09-04CD97370ND
2019-09-11CE065288.80 ppb
2019-09-11CE065298.70 ppb
2019-09-11CE0653015.0 ppb
2019-10-02CE25548ND
2019-10-09CE299479.50 ppb
2019-10-09CE299489.50 ppb
2019-10-09CE2994915.0 ppb
2019-11-06CE55216ND
2019-11-14CE605707.40 ppb
2019-11-14CE605716.80 ppb
2019-11-14CE605724.90 ppb
2019-11-14CE605739.10 ppb
2019-11-14CE605749.30 ppb
2019-11-14CE605755.10 ppb
2019-11-14CE605766.50 ppb
2019-11-14CE605777.00 ppb
2019-12-11CE850826.20 ppb
2019-12-11CE850836.40 ppb
2019-12-11CE850848.30 ppb
2020-01-31CF245396.90 ppb
2020-01-31CF245406.80 ppb
2020-01-31CF245417.50 ppb
2020-02-19CF345036.10 ppb
2020-02-19CF345046.20 ppb
2020-02-19CF345053.10 ppb
2020-02-19CF345061.50 ppb
2020-02-19CF345078.10 ppb
2020-02-19CF345082.90 ppb
2020-02-19CF345093.40 ppb
2020-02-19CF345106.60 ppb
2020-03-16CF508827.30 ppb
2020-03-16CF508837.50 ppb
2020-03-16CF508849.70 ppb
2020-04-08CF704947.00 ppb
2020-04-08CF704957.10 ppb
2020-04-08CF7049610.00 ppb
2020-05-20CF984668.20 ppb
2020-05-20CF984672.80 ppb
2020-05-20CF9846810.00 ppb
2020-05-20CF984694.40 ppb
2020-05-20CF984709.10 ppb
2020-05-21CF994537.20 ppb
2020-05-21CF994545.00 ppb
2020-05-21CF994555.90 ppb
2020-06-10CG104807.60 ppb
2020-06-10CG104818.10 ppb
2020-06-10CG1048211.0 ppb
2020-06-10CG104791.10 ppb
2020-06-17CG160863.70 ppb
2020-06-17CG160876.30 ppb
2020-06-17CG160884.10 ppb
2020-07-08CG29532ND
2020-07-15CG342768.40 ppb
2020-07-15CG342778.30 ppb
2020-07-15CG3427814.0 ppb
2020-07-29CG432112.30 ppb
2020-07-29CG43212ND
2020-08-12CG5236010.00 ppb
2020-08-12CG5236110.00 ppb
2020-08-12CG523626.70 ppb
2020-08-12CG523635.50 ppb
2020-08-12CG5236416.0 ppb
2020-08-12CG523659.60 ppb
2020-08-12CG523668.80 ppb
2020-08-12CG523678.90 ppb
2020-08-12CG52353ND
2020-09-09CG7319910.00 ppb
2020-09-09CG732009.50 ppb
2020-09-09CG7320115.0 ppb
2020-09-30CG88204ND
2020-10-07CG92447ND
2020-10-14CG9669010.00 ppb
2020-10-14CG9669110.00 ppb
2020-10-14CG9669213.0 ppb
2020-11-12CH137498.70 ppb
2020-11-12CH137509.00 ppb
2020-11-12CH137514.80 ppb
2020-11-12CH1375211.0 ppb
2020-11-12CH1375313.0 ppb
2020-11-12CH137549.00 ppb
2020-11-12CH137556.70 ppb
2020-11-12CH137568.90 ppb
2020-11-12CH13760ND
2020-12-09CH280268.00 ppb
2020-12-09CH280277.70 ppb
2020-12-09CH280284.40 ppb
2021-01-13CH455367.10 ppb
2021-01-13CH455377.50 ppb
2021-01-13CH455389.00 ppb
2021-02-04CH568765.90 ppb
2021-02-04CH568775.40 ppb
2021-02-04CH568783.00 ppb
2021-02-04CH568793.50 ppb
2021-02-04CH568806.40 ppb
2021-02-04CH568811.20 ppb
2021-02-04CH568823.10 ppb
2021-02-04CH568836.30 ppb
2021-03-11CH766535.50 ppb
2021-03-11CH766545.70 ppb
2021-03-11CH766554.10 ppb
2021-04-14CH991066.10 ppb
2021-04-14CH991076.20 ppb
2021-04-14CH991084.90 ppb
2021-04-26CI15487ND
2021-05-05CI237787.40 ppb
2021-05-05CI237797.40 ppb
2021-05-05CI237804.30 ppb
2021-05-05CI237813.80 ppb
2021-05-05CI237824.70 ppb
2021-05-05CI237834.90 ppb
2021-05-05CI237846.60 ppb
2021-05-05CI237857.60 ppb
2021-05-05CI23774ND
2021-06-09CI510913.80 ppb
2021-06-09CI510924.60 ppb
2021-06-09CI510933.20 ppb
2021-06-09CI510942.80 ppb
2021-06-09CI510952.60 ppb
2021-06-09CI51096ND
2021-06-14CI54537ND
2021-06-16CI565228.10 ppb
2021-06-16CI565238.40 ppb
2021-06-16CI565249.90 ppb
2021-07-28CI83796ND
2021-08-09CI93330ND
2021-08-25CJ135029.80 ppb
2021-08-25CJ1350310.00 ppb
2021-08-25CJ135047.90 ppb
2021-08-25CJ1350516.0 ppb
2021-08-25CJ1350616.0 ppb
2021-08-25CJ1350711.0 ppb
2021-08-25CJ135089.50 ppb
2021-08-25CJ1350911.0 ppb
2021-08-25CJ13500ND
2021-09-15CJ289649.60 ppb
2021-09-15CJ289659.70 ppb
2021-09-15CJ2896611.0 ppb
2021-10-20CJ659198.50 ppb
2021-10-20CJ659208.80 ppb
2021-10-20CJ6592110.00 ppb
2021-11-17CJ799307.50 ppb
2021-11-17CJ799317.40 ppb
2021-11-17CJ799326.30 ppb
2021-11-17CJ7993312.0 ppb
2021-11-17CJ7993411.0 ppb
2021-11-17CJ799356.00 ppb
2021-11-17CJ799366.00 ppb
2021-11-17CJ799377.90 ppb
2021-12-15CJ985287.30 ppb
2021-12-15CJ985296.90 ppb
2021-12-15CJ985307.90 ppb
2022-01-12CK146216.60 ppb
2022-01-12CK146225.30 ppb
2022-01-12CK146237.90 ppb
2022-02-09CK332356.30 ppb
2022-02-09CK332366.60 ppb
2022-02-09CK332375.20 ppb
2022-02-09CK332389.00 ppb
2022-02-09CK332397.50 ppb
2022-02-09CK332402.10 ppb
2022-02-09CK332415.10 ppb
2022-02-09CK332427.00 ppb
2022-03-09CK829237.40 ppb
2022-03-09CK829247.40 ppb
2022-03-09CK829258.70 ppb
2022-04-13CL077887.30 ppb
2022-04-13CL077897.40 ppb
2022-04-13CL077905.30 ppb
2022-05-19CL341179.60 ppb
2022-05-19CL341189.70 ppb
2022-05-19CL341195.90 ppb
2022-05-19CL341204.70 ppb
2022-05-19CL3412111.0 ppb
2022-05-19CL341223.30 ppb
2022-05-19CL341236.80 ppb
2022-05-19CL341249.70 ppb
2022-05-25CL382093.30 ppb
2022-06-01CL457694.60 ppb
2022-06-01CL457706.90 ppb
2022-06-01CL457714.40 ppb
2022-06-01CL457723.00 ppb
2022-06-01CL45773ND
2022-06-15CL568348.90 ppb
2022-06-15CL568358.60 ppb
2022-06-15CL5683611.0 ppb
2022-06-22CL61866ND
2022-06-27CL64555ND
2022-07-13CL7634211.0 ppb
2022-07-13CL7634312.0 ppb
2022-07-13CL7634412.0 ppb
2022-07-27CL90095ND
2022-08-10CM0165912.0 ppb
2022-08-10CM0166013.0 ppb
2022-08-10CM0166111.0 ppb
2022-08-10CM0166216.0 ppb
2022-08-10CM0166317.0 ppb
2022-08-10CM0166411.0 ppb
2022-08-10CM0166511.0 ppb
2022-08-10CM0166611.0 ppb
2022-09-14CM3099111.0 ppb
2022-09-14CM3099211.0 ppb
2022-09-14CM3099315.0 ppb
2022-10-12CM6035310.00 ppb
2022-10-12CM603549.00 ppb
2022-10-12CM6035513.0 ppb
2022-11-09CM80564ND
2022-11-15CM870495.30 ppb
2022-11-15CM870508.20 ppb
2022-11-15CM870438.20 ppb
2022-11-15CM870448.70 ppb
2022-11-15CM8704611.0 ppb
2022-11-15CM870479.50 ppb
2022-11-16CM870487.50 ppb
2022-11-16CM870455.60 ppb
2022-12-21CN096966.30 ppb
2022-12-21CN096976.10 ppb
2022-12-21CN096987.90 ppb
2023-01-11CN211495.80 ppb
2023-01-11CN211505.70 ppb
2023-01-11CN211516.90 ppb
2023-01-30CN322191.70 ppb
2023-02-15CN434626.00 ppb
2023-02-15CN434635.90 ppb
2023-02-15CN434643.70 ppb
2023-02-15CN434652.70 ppb
2023-02-15CN434665.70 ppb
2023-02-15CN434673.30 ppb
2023-02-15CN434683.70 ppb
2023-02-15CN434696.70 ppb
2023-03-08CN554345.60 ppb
2023-03-08CN554355.40 ppb
2023-03-08CN554364.70 ppb
2023-03-08CN554312.40 ppb
2023-03-13CN587242.50 ppb
2023-03-15CN602273.00 ppb
2023-03-15CN60228ND
2023-03-22CN655822.70 ppb
2023-04-19CN867456.60 ppb
2023-04-19CN867466.40 ppb
2023-04-19CN867474.80 ppb
2023-05-10CO023176.40 ppb
2023-05-10CO023186.60 ppb
2023-05-10CO023193.80 ppb
2023-05-10CO023203.70 ppb
2023-05-10CO023214.40 ppb
2023-05-10CO023223.30 ppb
2023-05-10CO023234.40 ppb
2023-05-10CO023247.40 ppb
2023-06-14CO277637.10 ppb
2023-06-14CO277646.90 ppb
2023-06-14CO277656.40 ppb
2023-07-12CO4862710.00 ppb
2023-07-12CO4862811.0 ppb
2023-07-12CO4862915.0 ppb
2023-07-17CO51914ND
2023-07-28CO61474ND
2023-08-10CO717569.40 ppb
2023-08-10CO717579.80 ppb
2023-08-10CO717587.50 ppb
2023-08-10CO7175913.0 ppb
2023-08-10CO7176014.0 ppb
2023-08-10CO717618.80 ppb
2023-08-10CO717628.20 ppb
2023-08-10CO717639.50 ppb
2023-09-20CP045499.20 ppb
2023-09-20CP045509.60 ppb
2023-09-20CP0455112.0 ppb
2023-10-11CP229908.90 ppb
2023-10-11CP229918.80 ppb
2023-10-11CP2299212.0 ppb
2023-11-08CP433906.20 ppb
2023-11-08CP433917.10 ppb
2023-11-08CP433926.30 ppb
2023-11-08CP433938.60 ppb
2023-11-08CP4339411.0 ppb
2023-11-08CP433958.20 ppb
2023-11-08CP433966.50 ppb
2023-11-08CP433976.90 ppb
2023-12-13CP665866.70 ppb
2023-12-13CP665876.60 ppb
2023-12-13CP6658810.00 ppb