Know Your Environment. Protect Your Health.

Dibromochloromethane

City of Lancaster

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.

 

292

Samples

0

Samples exceeding legal limit (MCL)

215

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.01 ppb4126ND - 2.70 ppb
20191.53 ppb3417ND - 5.80 ppb
20202.61 ppb4238ND - 6.50 ppb
20212.01 ppb4836ND - 7.20 ppb
20222.39 ppb6450ND - 8.70 ppb
20231.78 ppb6348ND - 5.00 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane 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
2018-02-068002953-021.20 ppb
2018-02-068002953-052.00 ppb
2018-02-068002953-061.60 ppb
2018-02-068002953-071.50 ppb
2018-02-088002953-011.80 ppb
2018-02-088002953-031.60 ppb
2018-02-088002953-041.50 ppb
2018-02-088002953-081.60 ppb
2018-03-1323024310011.60 ppb
2018-04-1023086770011.90 ppb
2018-05-0723141400011.80 ppb
2018-05-0723141400052.70 ppb
2018-05-0723141400062.40 ppb
2018-05-0723141400071.20 ppb
2018-05-0723141400081.20 ppb
2018-05-0823141400021.10 ppb
2018-05-0823141400031.40 ppb
2018-05-0823141400041.20 ppb
2018-08-062331578002ND
2018-08-062331578003ND
2018-08-062331578004ND
2018-08-062331578005ND
2018-08-072331578006ND
2018-08-0723315780071.000 ppb
2018-08-0723315780081.10 ppb
2018-08-0823315780012.30 ppb
2018-09-2523410350011.50 ppb
2018-09-2523410350021.70 ppb
2018-11-0723491670011.30 ppb
2018-11-072349167003ND
2018-11-072349167004ND
2018-11-072349167005ND
2018-11-082349167002ND
2018-11-082349167006ND
2018-11-082349167007ND
2018-11-082349167008ND
2018-12-123006044002ND
2018-12-123006044003ND
2018-12-1230060440041.80 ppb
2018-12-1230060440051.30 ppb
2018-12-123006044006ND
2019-02-063015556002ND
2019-02-063015556004ND
2019-02-0630155560051.30 ppb
2019-02-063015556006ND
2019-02-063015556007ND
2019-02-073015556001ND
2019-02-073015556003ND
2019-02-073015556008ND
2019-05-0630326890011.80 ppb
2019-05-063032689002ND
2019-05-063032689004ND
2019-05-063032689005ND
2019-05-0730326890031.10 ppb
2019-05-0730326890061.10 ppb
2019-05-073032689007ND
2019-05-0730326890081.000 ppb
2019-08-0630502860025.10 ppb
2019-08-0630502860035.80 ppb
2019-08-0630502860044.80 ppb
2019-08-0630502860062.40 ppb
2019-08-0730502860014.10 ppb
2019-08-0730502860053.10 ppb
2019-08-0730502860075.30 ppb
2019-08-0730502860084.90 ppb
2019-09-1730588590015.50 ppb
2019-11-0730689200011.20 ppb
2019-11-073068920002ND
2019-11-073068920003ND
2019-11-0730689200041.50 ppb
2019-11-073068920005ND
2019-11-083069998001ND
2019-11-0830699980021.90 ppb
2019-11-083069998003ND
2019-12-183076613001ND
2020-02-101.70 ppb
2020-02-102.30 ppb
2020-02-101.20 ppb
2020-02-102.50 ppb
2020-02-101.70 ppb
2020-02-111.90 ppb
2020-02-111.50 ppb
2020-02-111.70 ppb
2020-05-061.50 ppb
2020-05-061.10 ppb
2020-05-061.80 ppb
2020-05-061.80 ppb
2020-05-07ND
2020-05-071.000 ppb
2020-05-07ND
2020-05-07ND
2020-08-102.80 ppb
2020-08-103.80 ppb
2020-08-10ND
2020-08-113.30 ppb
2020-08-113.80 ppb
2020-08-111.30 ppb
2020-08-114.40 ppb
2020-08-114.50 ppb
2020-09-295.90 ppb
2020-09-296.50 ppb
2020-09-293.20 ppb
2020-09-293.00 ppb
2020-09-305.40 ppb
2020-09-306.20 ppb
2020-11-094.30 ppb
2020-11-091.70 ppb
2020-11-091.90 ppb
2020-11-093.80 ppb
2020-11-093.80 ppb
2020-11-102.80 ppb
2020-11-103.70 ppb
2020-11-104.00 ppb
2020-12-152.00 ppb
2020-12-152.00 ppb
2020-12-151.60 ppb
2020-12-152.40 ppb
2021-02-082.50 ppb
2021-02-081.90 ppb
2021-02-082.30 ppb
2021-02-082.80 ppb
2021-02-092.30 ppb
2021-02-092.10 ppb
2021-02-092.40 ppb
2021-02-092.40 ppb
2021-05-102.10 ppb
2021-05-10ND
2021-05-102.10 ppb
2021-05-102.20 ppb
2021-05-11ND
2021-05-11ND
2021-05-11ND
2021-05-11ND
2021-08-093.70 ppb
2021-08-093.30 ppb
2021-08-094.30 ppb
2021-08-093.20 ppb
2021-08-104.80 ppb
2021-08-104.20 ppb
2021-08-107.20 ppb
2021-08-104.30 ppb
2021-09-152.40 ppb
2021-09-222.40 ppb
2021-09-232.70 ppb
2021-09-28ND
2021-09-28ND
2021-09-281.20 ppb
2021-09-29ND
2021-11-08ND
2021-11-09ND
2021-11-09ND
2021-11-092.50 ppb
2021-11-091.000 ppb
2021-11-09ND
2021-11-101.10 ppb
2021-11-102.30 ppb
2021-12-102.70 ppb
2021-12-132.90 ppb
2021-12-141.80 ppb
2021-12-142.30 ppb
2021-12-142.80 ppb
2021-12-151.90 ppb
2021-12-152.90 ppb
2021-12-151.70 ppb
2021-12-152.00 ppb
2022-02-083.00 ppb
2022-02-081.30 ppb
2022-02-081.80 ppb
2022-02-08ND
2022-02-081.70 ppb
2022-02-081.70 ppb
2022-02-081.30 ppb
2022-02-08ND
2022-03-082.80 ppb
2022-03-082.60 ppb
2022-03-091.000 ppb
2022-03-091.10 ppb
2022-03-091.20 ppb
2022-03-102.00 ppb
2022-03-101.40 ppb
2022-03-101.20 ppb
2022-03-151.80 ppb
2022-04-05ND
2022-04-05ND
2022-04-05ND
2022-04-051.10 ppb
2022-04-051.10 ppb
2022-04-05ND
2022-04-05ND
2022-04-061.60 ppb
2022-05-061.20 ppb
2022-05-061.50 ppb
2022-05-061.50 ppb
2022-05-062.70 ppb
2022-05-062.50 ppb
2022-05-061.60 ppb
2022-05-061.50 ppb
2022-05-091.90 ppb
2022-08-087.80 ppb
2022-08-083.50 ppb
2022-08-087.10 ppb
2022-08-088.10 ppb
2022-08-097.70 ppb
2022-08-098.70 ppb
2022-08-098.70 ppb
2022-08-095.20 ppb
2022-09-296.30 ppb
2022-09-295.30 ppb
2022-09-294.10 ppb
2022-11-094.20 ppb
2022-11-093.70 ppb
2022-11-094.30 ppb
2022-11-094.10 ppb
2022-11-093.40 ppb
2022-11-092.30 ppb
2022-11-093.70 ppb
2022-11-093.70 ppb
2022-12-161.10 ppb
2022-12-16ND
2022-12-16ND
2022-12-16ND
2022-12-22ND
2022-12-22ND
2022-12-22ND
2022-12-221.80 ppb
2022-12-221.60 ppb
2022-12-22ND
2022-12-231.30 ppb
2022-12-231.10 ppb
2023-02-061.30 ppb
2023-02-061.30 ppb
2023-02-062.70 ppb
2023-02-061.40 ppb
2023-02-071.90 ppb
2023-02-071.50 ppb
2023-02-072.40 ppb
2023-02-071.10 ppb
2023-04-061.70 ppb
2023-04-06ND
2023-04-06ND
2023-04-06ND
2023-04-063.70 ppb
2023-04-062.60 ppb
2023-04-06ND
2023-04-06ND
2023-05-09ND
2023-05-09ND
2023-05-094.20 ppb
2023-05-09ND
2023-05-101.60 ppb
2023-05-10ND
2023-05-104.60 ppb
2023-05-10ND
2023-05-303.70 ppb
2023-05-304.00 ppb
2023-05-303.60 ppb
2023-05-303.50 ppb
2023-05-304.10 ppb
2023-08-082.00 ppb
2023-08-082.30 ppb
2023-08-082.00 ppb
2023-08-085.00 ppb
2023-08-082.80 ppb
2023-08-103.40 ppb
2023-08-103.70 ppb
2023-08-103.20 ppb
2023-09-222.30 ppb
2023-09-222.70 ppb
2023-09-222.30 ppb
2023-09-221.20 ppb
2023-09-221.10 ppb
2023-09-252.20 ppb
2023-09-251.20 ppb
2023-09-25ND
2023-09-251.20 ppb
2023-11-082.40 ppb
2023-11-081.20 ppb
2023-11-081.10 ppb
2023-11-082.90 ppb
2023-11-081.30 ppb
2023-11-091.10 ppb
2023-11-093.00 ppb
2023-11-091.50 ppb
2023-12-061.40 ppb
2023-12-06ND
2023-12-06ND
2023-12-061.80 ppb
2023-12-061.000 ppb
2023-12-071.20 ppb
2023-12-07ND
2023-12-07ND
2023-12-282.60 ppb