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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Avon Water Company

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

 

242

Samples

0

Samples exceeding legal limit (MCL)

104

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.879 ppb4819ND - 6.00 ppb
20150.737 ppb4818ND - 5.20 ppb
20161.16 ppb4820ND - 5.80 ppb
20171.13 ppb4816ND - 7.90 ppb
20181.84 ppb2616ND - 5.80 ppb
20192.11 ppb2415ND - 7.20 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
2014-01-16E401A25-1TTHM1.90 ppb
2014-01-16E401A25-2TTHM1.70 ppb
2014-01-16E401A25-3TTHM1.60 ppb
2014-01-16E401A25-4TTHM3.20 ppb
2014-01-16E402153-8VOCND
2014-02-04E402153-1VOCND
2014-02-04E402153-2VOCND
2014-02-04E402153-3VOCND
2014-02-04E402153-4VOC1.90 ppb
2014-02-04E402153-5VOCND
2014-02-04E402153-6VOCND
2014-02-04E402153-7VOCND
2014-04-15E404E43-1TTHM2.10 ppb
2014-04-15E404E43-2TTHM2.20 ppb
2014-04-15E404E43-3TTHM2.00 ppb
2014-04-15E404E43-4TTHM1.30 ppb
2014-05-14E405C29-1VOCND
2014-05-14E405C29-2VOCND
2014-05-14E405C29-3VOCND
2014-05-14E405C29-4VOCND
2014-05-14E405C29-5VOC1.20 ppb
2014-05-14E405C29-6VOCND
2014-05-14E405C29-7VOCND
2014-05-14E405C29-8VOCND
2014-07-14E407C09-1GE2.10 ppb
2014-07-14E407C09-2GE2.40 ppb
2014-07-14E407C09-3GE6.00 ppb
2014-07-14E407C09-4GE1.20 ppb
2014-08-13E408C10-1VOCND
2014-08-13E408C10-2VOCND
2014-08-13E408C10-3VOCND
2014-08-13E408C10-4VOCND
2014-08-13E408C10-5VOC0.580 ppb
2014-08-13E408C10-6VOCND
2014-08-13E408C10-7VOCND
2014-08-13E408C10-8VOCND
2014-10-16E410F41-1TTHM2.50 ppb
2014-10-16E410F41-2TTHM2.40 ppb
2014-10-16E410F41-3TTHM3.80 ppb
2014-10-16E410F41-4TTHM2.10 ppb
2014-11-21E411H72-1VOCND
2014-11-21E411H72-2VOCND
2014-11-21E411H72-3VOCND
2014-11-21E411H72-4VOCND
2014-11-21E411H72-6VOCND
2014-11-21E411H72-7VOCND
2014-11-21E411H72-8VOCND
2014-12-08E412718-2VOCND
2015-01-15E501A25-2TTHM1.30 ppb
2015-01-15E501A25-3TTHM1.50 ppb
2015-01-15E501A25-1TTHM1.20 ppb
2015-01-15E501A25-4TTHM1.20 ppb
2015-02-18E502D21-4VOCND
2015-02-19E502D21-2VOCND
2015-02-19E502D21-3VOCND
2015-02-19E502D21-6VOC1.000 ppb
2015-02-19E502D21-7VOCND
2015-02-19E502D21-8VOCND
2015-02-19E502D21-9VOCND
2015-02-20E502D21-1VOCND
2015-04-14E504E21-2TTHM1.30 ppb
2015-04-14E504E21-4TTHM0.830 ppb
2015-04-14E504E21-1TTHM1.60 ppb
2015-04-14E504E21-3TTHM1.30 ppb
2015-06-10E506B81-1VOCND
2015-06-10E506B81-2VOCND
2015-06-10E506B81-3VOCND
2015-06-10E506B81-4VOCND
2015-06-10E506B81-5VOCND
2015-06-10E506B81-6VOCND
2015-06-10E506B81-7VOCND
2015-06-10E506B81-8VOCND
2015-07-15E507G94-4TTHM0.840 ppb
2015-07-15E507G94-3TTHM5.20 ppb
2015-07-15E507G94-1TTHM1.70 ppb
2015-07-15E507G94-2TTHM2.50 ppb
2015-08-28E508Y67-1VOCND
2015-08-28E508Y67-2VOCND
2015-08-28E508Y67-3VOCND
2015-08-28E508Y67-4VOCND
2015-08-28E508Y67-5VOCND
2015-08-28E508Y67-6VOCND
2015-08-28E508Y67-7VOCND
2015-08-28E508Y67-8VOCND
2015-10-15E510E91-2TTHM4.90 ppb
2015-10-15E510E91-4TTHM0.720 ppb
2015-10-15E510E91-3TTHM3.10 ppb
2015-10-15E510E91-1TTHM3.70 ppb
2015-11-24E511O25-1VOCND
2015-11-24E511O25-2VOCND
2015-11-24E511O25-3VOCND
2015-11-24E511O25-4VOCND
2015-11-24E511O25-5VOC1.50 ppb
2015-11-24E511O25-6VOCND
2015-11-24E511O25-7VOCND
2015-11-24E511O25-8VOCND
2016-01-15E601D17-1TTHM2.90 ppb
2016-01-15E601D17-2TTHM2.40 ppb
2016-01-15E601D17-3TTHM3.20 ppb
2016-01-15E601D17-4TTHM1.000 ppb
2016-02-18E602H93-1VOCND
2016-02-18E602H93-2VOCND
2016-02-18E602H93-3VOCND
2016-02-18E602H93-4VOCND
2016-02-18E602H93-5VOC1.70 ppb
2016-02-18E602H93-6VOCND
2016-02-18E602H93-7VOCND
2016-02-18E602H93-8VOCND
2016-04-19E605079-1TTHM3.00 ppb
2016-04-19E605079-2TTHM2.80 ppb
2016-04-19E605079-3TTHM4.10 ppb
2016-04-19E605079-4TTHM2.10 ppb
2016-05-19E605N95-1VOCND
2016-05-19E605N95-2VOCND
2016-05-19E605N95-3VOCND
2016-05-19E605N95-4VOCND
2016-05-19E605N95-5VOC2.10 ppb
2016-05-19E605N95-6VOCND
2016-05-19E605N95-7VOCND
2016-05-19E605N95-8VOCND
2016-07-13E607C00-1TTHM3.30 ppb
2016-07-13E607C00-2TTHM2.70 ppb
2016-07-13E607C00-3TTHM5.20 ppb
2016-07-13E607C00-4TTHM0.830 ppb
2016-08-05E608889-1VOCND
2016-08-05E608889-2VOCND
2016-08-05E608889-3VOCND
2016-08-05E608889-4VOCND
2016-08-05E608889-5VOCND
2016-08-05E608889-6VOCND
2016-08-05E608889-7VOCND
2016-08-05E608889-8VOCND
2016-10-14E610G73-1TTHM3.50 ppb
2016-10-14E610G73-2TTHM4.30 ppb
2016-10-14E610G73-3TTHM5.80 ppb
2016-10-14E610G73-4TTHM2.20 ppb
2016-11-21E611M57-1VOCND
2016-11-21E611M57-2VOCND
2016-11-21E611M57-3VOCND
2016-11-21E611M57-4VOC0.650 ppb
2016-11-21E611M57-5VOC2.00 ppb
2016-11-21E611M57-6VOCND
2016-11-21E611M57-7VOCND
2016-11-21E611M57-8VOCND
2017-01-13E701C67-1TTHM3.60 ppb
2017-01-13E701C67-2TTHM2.30 ppb
2017-01-13E701C67-3TTHM2.10 ppb
2017-01-13E701C67-4TTHM1.90 ppb
2017-02-24E702M07-1VOCND
2017-02-24E702M07-2VOCND
2017-02-24E702M07-3VOCND
2017-02-24E702M07-4VOCND
2017-02-24E702M07-5VOCND
2017-02-24E702M07-6VOCND
2017-02-24E702M07-7VOCND
2017-02-24E702M07-8VOCND
2017-04-13D7D1107-01VOC2.90 ppb
2017-04-13D7D1107-02VOC4.00 ppb
2017-04-13D7D1107-03VOC3.10 ppb
2017-04-13D7D1107-04VOC2.30 ppb
2017-06-01D7F0171-01VOCND
2017-06-01D7F0171-02VOCND
2017-06-01D7F0171-03VOCND
2017-06-01D7F0171-04VOCND
2017-06-01D7F0171-05VOCND
2017-06-01D7F0171-06VOCND
2017-06-01D7F0171-07VOCND
2017-06-01D7F0171-08VOCND
2017-07-14D7G1331-01VOC4.20 ppb
2017-07-14D7G1331-02VOC7.90 ppb
2017-07-14D7G1331-03VOC5.20 ppb
2017-07-14D7G1331-04VOC1.50 ppb
2017-08-29D7H3264-01VOCND
2017-08-29D7H3264-02VOCND
2017-08-29D7H3264-03VOCND
2017-08-29D7H3264-04VOCND
2017-08-29D7H3264-05VOCND
2017-08-29D7H3264-06VOCND
2017-08-29D7H3264-07VOCND
2017-08-29D7H3264-08VOCND
2017-10-13D7J1362-01VOC4.80 ppb
2017-10-13D7J1362-02VOC3.20 ppb
2017-10-13D7J1362-03VOC3.50 ppb
2017-10-13D7J1362-04VOC1.70 ppb
2017-11-28D7K2247-02VOCND
2017-11-28D7K2247-03VOCND
2017-11-28D7K2247-04VOCND
2017-11-28D7K2247-05VOCND
2017-11-28D7K2247-06VOCND
2017-11-28D7K2247-07VOCND
2017-11-28D7K2247-08VOCND
2017-11-28D7K2247-01VOCRND
2018-01-24D8A1669-01VOC2.50 ppb
2018-01-24D8A1669-02VOC2.30 ppb
2018-01-24D8A1669-03VOC3.00 ppb
2018-01-24D8A1669-04VOC1.50 ppb
2018-03-05D8C0238-02VOCND
2018-03-05D8C0238-03VOCND
2018-03-05D8C0238-04VOCND
2018-03-05D8C0238-05VOCND
2018-03-05D8C0238-06VOCND
2018-03-05D8C0238-07VOCND
2018-03-05D8C0238-08VOCND
2018-04-25D8D2151-08VOC0.800 ppb
2018-04-25D8D2151-09VOC5.20 ppb
2018-04-25D8D2151-10VOC2.80 ppb
2018-04-25D8D2151-11VOC3.90 ppb
2018-04-25D8D2151-07VOCND
2018-07-26CA987430.630 ppb
2018-07-26CA987444.20 ppb
2018-07-26CA987451.90 ppb
2018-07-26CA987464.10 ppb
2018-07-26CA98747ND
2018-10-09DBP 2005086642.90 ppb
2018-10-09DBP 2005086652.60 ppb
2018-10-09DBP 2005086763.80 ppb
2018-10-09DBP 2005086785.80 ppb
2018-10-09VOC1 200508699ND
2019-01-08DBP 2005181311.80 ppb
2019-01-08DBP 200518132ND
2019-01-08DBP 2005181331.70 ppb
2019-01-08DBP 2005181351.60 ppb
2019-01-29VOC1 200519992ND
2019-01-29VOC1 200519993ND
2019-01-29VOC1 200519991ND
2019-01-29VOC1 200519996ND
2019-01-29VOC1 200519994ND
2019-01-29VOC1 200519995ND
2019-04-11DBP 2005282672.30 ppb
2019-04-11DBP 2005282685.10 ppb
2019-04-11DBP 2005282693.20 ppb
2019-04-11DBP 2005282703.10 ppb
2019-04-16VOC1 200528742ND
2019-07-02DBP 2005389921.20 ppb
2019-07-02DBP 2005389936.10 ppb
2019-07-02DBP 2005389953.90 ppb
2019-07-02DBP 2005389964.70 ppb
2019-08-13VOC1 200544842ND
2019-10-03DBP 2005514291.10 ppb
2019-10-03DBP 2005514307.20 ppb
2019-10-03DBP 2005514313.10 ppb
2019-10-03DBP 2005514324.50 ppb