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EWG's Tap Water Database — 2021 UPDATE

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Bromodichloromethane

Erie County Water Authority (ECWA)

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

 

290

Samples

0

Samples exceeding legal limit (MCL)

290

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201411.1 ppb48482.30 ppb - 19.0 ppb
201510.3 ppb51513.40 ppb - 16.0 ppb
201611.4 ppb48483.50 ppb - 20.5 ppb
20179.86 ppb47472.70 ppb - 15.2 ppb
201811.4 ppb48483.00 ppb - 21.9 ppb
201911.4 ppb48484.05 ppb - 19.3 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
2014-02-1620140216_52313.1 ppb
2014-02-1620140216_4917.59 ppb
2014-02-1620140216_3406.71 ppb
2014-02-1620140216_53011.6 ppb
2014-02-1620140216_4848.97 ppb
2014-02-1620140216_43310.9 ppb
2014-02-1820140218_10479.28 ppb
2014-02-1820140218_4027.77 ppb
2014-02-1820140218_5278.81 ppb
2014-02-1820140218_39311.1 ppb
2014-02-1820140218_29116.7 ppb
2014-02-1820140218_3918.98 ppb
2014-05-19201405199.90 ppb
2014-05-1920140519_3939.20 ppb
2014-05-1920140519_3919.70 ppb
2014-05-1920140519_29111.0 ppb
2014-05-1920140519_4028.60 ppb
2014-05-1920140519_4918.30 ppb
2014-05-1920140519_53010.00 ppb
2014-05-1920140519_10478.90 ppb
2014-05-1920140519_5278.40 ppb
2014-05-1920140519_3408.90 ppb
2014-05-1920140519_52312.0 ppb
2014-05-1920140519_48411.0 ppb
2014-08-181408F19-00517.0 ppb
2014-08-181408F19-01314.0 ppb
2014-08-181408F19-00118.0 ppb
2014-08-181408F19-0043.10 ppb
2014-08-181408F19-02217.0 ppb
2014-08-181408F19-01714.0 ppb
2014-08-181408F19-00815.0 ppb
2014-08-181408F19-01114.0 ppb
2014-08-181408F19-02010.00 ppb
2014-08-181408F19-01617.0 ppb
2014-08-181408F19-01914.0 ppb
2014-08-181408F19-00719.0 ppb
2014-11-171412027-01910.00 ppb
2014-11-171412027-01411.0 ppb
2014-11-171412027-01214.0 ppb
2014-11-171412027-0092.30 ppb
2014-11-171412027-01313.0 ppb
2014-11-171412027-00211.0 ppb
2014-11-171412027-01012.0 ppb
2014-11-171412027-00116.0 ppb
2014-11-171412027-0053.90 ppb
2014-11-171412027-0079.90 ppb
2014-11-171412027-0179.10 ppb
2014-11-171412027-00411.0 ppb
2015-02-17523-2015021716.0 ppb
2015-02-17340-201502177.40 ppb
2015-02-17391-201502179.10 ppb
2015-02-17433-2015021710.00 ppb
2015-02-171047-201502178.40 ppb
2015-02-17291-201502177.20 ppb
2015-02-17527-201502178.60 ppb
2015-02-17393-201502179.40 ppb
2015-02-17491-201502176.60 ppb
2015-02-17402-201502177.00 ppb
2015-02-17484-201502177.40 ppb
2015-02-18530-2015021810.00 ppb
2015-05-1820150518-A9.80 ppb
2015-05-18340616W10.00 ppb
2015-05-18340616L9.80 ppb
2015-05-18340616A13.0 ppb
2015-05-18340616R7.80 ppb
2015-05-18340616B11.0 ppb
2015-05-18340616F12.0 ppb
2015-05-1834066BA9.60 ppb
2015-05-1834061611.0 ppb
2015-05-18340616ED14.0 ppb
2015-05-18340616N11.0 ppb
2015-05-18201505189.60 ppb
2015-05-18340616TR4.20 ppb
2015-05-1820150518-B13.0 ppb
2015-05-18340616M10.00 ppb
2015-08-20347018-211.0 ppb
2015-08-20347018-116.0 ppb
2015-08-21347018-44.30 ppb
2015-08-21347018-64.30 ppb
2015-08-21347018-1013.0 ppb
2015-08-21347018-713.0 ppb
2015-08-21347018-916.0 ppb
2015-08-21347018-313.0 ppb
2015-08-21347018-515.0 ppb
2015-08-21347018-1211.0 ppb
2015-08-21347018-816.0 ppb
2015-08-21347018-1111.0 ppb
2015-11-1611/16/2015-4843.40 ppb
2015-11-1611/16/2015-5234.20 ppb
2015-11-1611/16/2015-3409.40 ppb
2015-11-1611/16/2015-5309.50 ppb
2015-11-1611/16/2015-2919.10 ppb
2015-11-1611/16/2015-43314.0 ppb
2015-11-1611/16/2015-4918.50 ppb
2015-11-1611/16/2015-39312.0 ppb
2015-11-1611/16/2015-40211.0 ppb
2015-11-1611/16/2015-104712.0 ppb
2015-11-1611/16/2015-39115.0 ppb
2015-11-1611/16/2015-52710.00 ppb
2016-02-1602/16/2016-10479.90 ppb
2016-02-1602/16/2016-4846.70 ppb
2016-02-1602/16/2016-3938.90 ppb
2016-02-1602/16/2016-2916.40 ppb
2016-02-1602/16/2016-4026.40 ppb
2016-02-1602/16/2016-5277.10 ppb
2016-02-1602/16/2016-39110.00 ppb
2016-02-1702/17/2016-53010.00 ppb
2016-02-1702/17/2016-52312.0 ppb
2016-02-1802/18/2016-3407.20 ppb
2016-02-1802/18/2016-4917.10 ppb
2016-02-1802/18/2016-4338.60 ppb
2016-05-1605/16/2016-2918.70 ppb
2016-05-1605/16/2016-5237.20 ppb
2016-05-1605/16/2016-4029.40 ppb
2016-05-1605/16/2016-5279.90 ppb
2016-05-1605/16/2016-39112.0 ppb
2016-05-1605/16/2016-10479.10 ppb
2016-05-1605/16/2016-4918.40 ppb
2016-05-1605/16/2016-3408.90 ppb
2016-05-1605/16/2016-39311.0 ppb
2016-05-1605/16/2016-43314.0 ppb
2016-05-1605/16/2016-5309.70 ppb
2016-05-1605/16/2016-4849.20 ppb
2016-08-151608H81-01215.3 ppb
2016-08-151608H81-00817.7 ppb
2016-08-151608H81-01018.8 ppb
2016-08-151608H81-00218.1 ppb
2016-08-151608H81-01515.9 ppb
2016-08-151608H81-00513.5 ppb
2016-08-151608H81-00714.8 ppb
2016-08-151608H81-00915.3 ppb
2016-08-151608H81-0133.84 ppb
2016-08-151608H81-00317.2 ppb
2016-08-151608H81-00120.5 ppb
2016-08-151608H81-0144.23 ppb
2016-11-1470495601015.6 ppb
2016-11-1470495602010.6 ppb
2016-11-1470495600215.7 ppb
2016-11-1470495601713.2 ppb
2016-11-1470533500111.1 ppb
2016-11-1470495600116.5 ppb
2016-11-147049560149.80 ppb
2016-11-1470465600418.5 ppb
2016-11-1470495600810.6 ppb
2016-11-1470495601114.2 ppb
2016-11-147049560073.50 ppb
2016-11-1470495601314.1 ppb
2017-02-21701195600910.1 ppb
2017-02-2170119560199.10 ppb
2017-02-21701195601413.9 ppb
2017-02-2170119560165.30 ppb
2017-02-21701195600715.2 ppb
2017-02-21701195601511.1 ppb
2017-02-2170119560219.30 ppb
2017-02-21701195600415.1 ppb
2017-02-2170119560029.30 ppb
2017-02-2170119560129.20 ppb
2017-02-21701195600111.3 ppb
2017-05-15FELLOW BAP 5152013.9 ppb
2017-05-15AUTO INF 515201713.0 ppb
2017-05-15TREVETT TANK 5153.00 ppb
2017-05-15WOHLHUETER 51529.00 ppb
2017-05-153330 BAKER 515207.30 ppb
2017-05-15TOPS MRKT 5152015.50 ppb
2017-05-15NAPA AUTO 5152018.20 ppb
2017-05-15MARILLA STAT 5159.10 ppb
2017-05-15RICE HILL 5152015.50 ppb
2017-05-16BENNING TANK 51612.8 ppb
2017-05-16LACK FIRE 2 51629.10 ppb
2017-08-14702731900412.6 ppb
2017-08-14702731800411.1 ppb
2017-08-1470273180014.30 ppb
2017-08-1470273190026.70 ppb
2017-08-14702732400314.1 ppb
2017-08-14702732400414.7 ppb
2017-08-14702731800713.8 ppb
2017-08-14702732400110.4 ppb
2017-08-14702732400510.6 ppb
2017-08-1470273180028.70 ppb
2017-08-1570273240089.30 ppb
2017-08-1570273240099.90 ppb
2017-12-01703714201712.2 ppb
2017-12-01703714200311.9 ppb
2017-12-01703714200712.7 ppb
2017-12-0170371420149.60 ppb
2017-12-01703714200411.4 ppb
2017-12-0170371420116.00 ppb
2017-12-01703714201810.8 ppb
2017-12-0170371420098.70 ppb
2017-12-0170371420138.10 ppb
2017-12-0170371420207.30 ppb
2017-12-0170371420012.70 ppb
2017-12-0170371420027.60 ppb
2017-12-01703714201613.1 ppb
2018-02-12704288601412.0 ppb
2018-02-12704288602110.8 ppb
2018-02-12704288601710.7 ppb
2018-02-12704288601115.1 ppb
2018-02-12704288600411.0 ppb
2018-02-1270428860086.30 ppb
2018-02-12704288600110.1 ppb
2018-02-12704288600311.0 ppb
2018-02-12704288600510.5 ppb
2018-02-1270428860196.90 ppb
2018-02-1270428860106.90 ppb
2018-02-1270428860125.80 ppb
2018-05-14ECWA 4 DBP 2ND Q10.7 ppb
2018-05-14ECWA 6 DBP 2ND Q10.5 ppb
2018-05-14ECWA 2 DBP 2ND Q5.60 ppb
2018-05-14ECWA 3 DBP 2ND Q9.20 ppb
2018-05-14ECWA10 DBP 2ND Q10.00 ppb
2018-05-14ECWA9 DBP 2ND Q7.10 ppb
2018-05-14ECWA 1 DBP 2ND Q3.00 ppb
2018-05-14ECWA7 DBP 2ND Q8.90 ppb
2018-05-14ECWA12 DBP 2ND Q5.50 ppb
2018-05-14ECWA 5 DBP 2ND Q9.70 ppb
2018-05-15ECWA11 DBP 2ND Q9.10 ppb
2018-05-16ECWA8 DBP 2ND Q8.80 ppb
2018-08-13DBP 2 ECWA 3RD Q14.1 ppb
2018-08-13DBP2 ECWA 3RD Q19.6 ppb
2018-08-13DBP2 ECWA 3RDQ1817.7 ppb
2018-08-13DBP 2 ECWA 3RDQ16.1 ppb
2018-08-13DBP2 ECWA 3RDQ 113.8 ppb
2018-08-13DBP2 ECWA 3RD Q121.9 ppb
2018-08-13DBP2 ECWA 3RDQ 15.60 ppb
2018-08-13DBP 2 ECWA 3RDQ116.7 ppb
2018-08-13DBP2 ECWA 3RDQ 118.3 ppb
2018-08-13DBP 2 ECWA 3RDQ20.8 ppb
2018-08-13DBP2 ECWA 3RDQ 120.4 ppb
2018-08-13DBP2 ECWA 3RD Q14.90 ppb
2018-12-04ECWA DBP 4TH Q 114.8 ppb
2018-12-04ECWA DBP 4THQ 1813.5 ppb
2018-12-04ECWA DBP2 4THQ 113.5 ppb
2018-12-04ECWA DBP2 4THQ 114.5 ppb
2018-12-04ECWA DBP 4THQ 185.60 ppb
2018-12-04ECWA DBP 4THQ 1812.0 ppb
2018-12-04ECWA 4TH Q 18 1214.8 ppb
2018-12-04ECWA DBP 4THQ 1812.0 ppb
2018-12-04ECWA DBP 4THQ 1811.2 ppb
2018-12-04DBP2 ECWA 4THQ 110.5 ppb
2018-12-04ECWA DBP 4TH Q 18.00 ppb
2018-12-04ECWA DBP2 4THQ1810.6 ppb
2019-02-19530 DBP 1ST Q 1910.5 ppb
2019-02-19SITE 340 1ST Q 27.60 ppb
2019-02-191047 DBP 1ST Q 18.90 ppb
2019-02-19SITE 402 DBP 1ST9.30 ppb
2019-02-19SITE 391 DBP 1ST8.50 ppb
2019-02-19SITE 393 DBP 1ST9.50 ppb
2019-02-19DBP 1ST Q 2917.70 ppb
2019-02-19433 DBP 1ST Q 1912.6 ppb
2019-02-19527 DBP 1ST Q 197.00 ppb
2019-02-19523 DBP 1ST Q 1912.1 ppb
2019-02-19484 DBP 1ST Q 199.70 ppb
2019-02-19491 DBP 1ST Q 198.00 ppb
2019-05-21523 DBP 2ND Q 196.15 ppb
2019-05-21530 DBP 2ND Q 1910.2 ppb
2019-05-21391 DBP 2ND Q 1911.1 ppb
2019-05-211047 DBP 2ND Q 19.74 ppb
2019-05-21393 DBP 2ND Q 199.78 ppb
2019-05-21291 DBP 2ND Q 198.01 ppb
2019-05-21484 DBP 2ND Q 198.48 ppb
2019-05-21527 DBP 2ND Q 199.10 ppb
2019-06-20491 DBP 2ND Q 197.77 ppb
2019-06-20402 DBP 2ND Q 198.94 ppb
2019-06-20433 DBP 2ND Q 1911.0 ppb
2019-06-20340 DBP 2ND Q 198.10 ppb
2019-08-27527 3RD Q 19 DBP16.6 ppb
2019-08-27340 3RD Q 19 DBP14.5 ppb
2019-08-27491 3RD Q 19 DBP13.9 ppb
2019-08-27291 3RD Q 19 DBP16.7 ppb
2019-08-27391 3RD Q 1919.3 ppb
2019-08-27393 3RD Q 19 DBP19.0 ppb
2019-08-27484 3RD Q 19 DBP6.91 ppb
2019-08-27402 3RD Q 19 DBP16.1 ppb
2019-08-271047 3RD Q 19 DB17.0 ppb
2019-08-275223 3RD Q 19 DB11.2 ppb
2019-08-27433 3RD Q 19 DBP18.1 ppb
2019-08-27530 3RD Q 19 DBP17.1 ppb
2019-11-19484 4TH Q 19 DBP6.87 ppb
2019-11-19530 4TH Q 19 DBP14.9 ppb
2019-11-19433 4TH Q 2019 D13.8 ppb
2019-11-19527 4TH Q 19 DBP13.2 ppb
2019-11-19391 DBP 4TH Q14.5 ppb
2019-11-19291 DBP 4TH Q11.5 ppb
2019-11-19491 4TH Q 19 DBP14.5 ppb
2019-11-19523 4TH Q 19 DBP4.05 ppb
2019-11-19393 DBP 4TH Q13.4 ppb
2019-11-19402 4TH Q 2019 D11.0 ppb
2019-11-19340 4TH Q DBP10.5 ppb
2019-11-191047 4TH Q 19 DB14.8 ppb