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National Drinking Water Database

Baltimore City Department of Public Works Utilities - Baltimore, MD

Serves 1,600,000 people

Dibromoacetic acid

Dibromoacetic acid is a disinfection byproduct regulated by EPA as one of five haloacetic acids that are formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.
This Drinking Water System
Test Days Exceeding Health GuidelinesDefinition of what this is
0 days
Test Days Exceeding Legal LimitsNumber of days in which the samples taken in that day exceed the Maximum Contaminant Level (Depending on the contaminant and its MCL, that may or may not trigger an MCL violation. Some MCLs are based on averages spanning several months to a year)
0 days
Test DaysNumber of days in which this chemical has reported results in the data we received from the State
105 days
Tests ConductedNumber of individual tests done for this contaminant
443 tests

Testing Summary

Health Limit
Legal Limit

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
Dibromoacetic acidDibromoacetic acid is a disinfection byproduct regulated by EPA as one of five haloacetic acids that are formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.0.29 ppb
6.5 ppb
60 ppb
NOTE: Each dot in the above graph represents one month.
* Water utilities are noted as exceeding the legal limit if any test is above the maximum contaminant level (MCL). Most MCLs are based on annual averages so exceeding the MCL for one test does not necessarily indicate that the system is out of compliance.

Health Based and Legal Limits for Dibromoacetic acid

Health Based Limits for Dibromoacetic acid

Maximum Contaminant Limit (MCL)The enforceable standard which defines the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to health-based limits (Maximum Contaminant Level Goals, or MCLGs) as feasible using the best available analytical and treatment technologies and taking cost into consideration. Source: U.S. Environmental Protection Agency.60 ppb

Testing Results

Testing DateAverage
Samples taken that dayNumber of Non-DetectsRange of Results
2007-11-190 ppb660 ppb
2007-11-180 ppb110 ppb
2007-11-160 ppb660 ppb
2007-11-140 ppb660 ppb
2007-09-190 ppb220 ppb
2007-09-180 ppb220 ppb
2007-09-170 ppb330 ppb
2007-09-140 ppb11110 ppb
2007-07-190 ppb660 ppb
2007-07-180 ppb220 ppb
2007-07-170 ppb220 ppb
2007-07-160 ppb660 ppb
2007-05-162 ppb302 ppb
2007-05-152 ppb202 ppb
2007-05-140.33 ppb650 to 2 ppb
2007-05-110 ppb660 ppb
2007-03-210.33 ppb320 to 1 ppb
2007-03-200 ppb220 ppb
2007-03-190 ppb660 ppb
2007-03-160 ppb550 ppb
2007-02-020 ppb110 ppb
2007-01-240 ppb220 ppb
2007-01-230 ppb220 ppb
2007-01-220 ppb660 ppb
2007-01-190 ppb550 ppb
2006-11-220 ppb110 ppb
2006-11-210.33 ppb320 to 1 ppb
2006-11-200.17 ppb650 to 1 ppb
2006-11-170 ppb660 ppb
2006-09-200 ppb330 ppb
2006-09-190 ppb220 ppb
2006-09-180 ppb660 ppb
2006-09-151.83 ppb650 to 11 ppb
2006-08-160 ppb220 ppb
2006-08-150 ppb220 ppb
2006-08-140 ppb660 ppb
2006-08-110.4 ppb540 to 2 ppb
2006-07-190 ppb330 ppb
2006-07-180 ppb220 ppb
2006-07-140 ppb110 ppb
2006-05-170 ppb330 ppb
2006-05-160.33 ppb320 to 1 ppb
2006-05-150.5 ppb630 to 1 ppb
2006-05-120.2 ppb540 to 1 ppb
2006-03-220 ppb220 ppb
2006-03-210 ppb220 ppb
2006-03-200 ppb660 ppb
2006-03-170 ppb660 ppb
2006-03-120 ppb110 ppb
2006-01-230.33 ppb640 to 1 ppb
2006-01-200.17 ppb650 to 1 ppb
2006-01-180 ppb440 ppb
2006-01-170 ppb220 ppb
2005-11-160 ppb330 ppb
2005-11-150 ppb220 ppb
2005-11-140 ppb660 ppb
2005-11-110 ppb880 ppb
2005-09-216.5 ppb410 to 24 ppb
2005-09-200 ppb220 ppb
2005-09-191 ppb601 ppb
2005-09-160 ppb770 ppb
2005-07-200 ppb440 ppb
2005-07-190 ppb220 ppb
2005-07-180 ppb660 ppb
2005-07-150 ppb550 ppb
2005-06-240 ppb550 ppb
2005-06-220 ppb550 ppb
2005-06-210 ppb220 ppb
2005-06-200 ppb330 ppb
2005-05-180 ppb330 ppb
2005-05-170 ppb220 ppb
2005-05-160 ppb660 ppb
2005-05-130 ppb770 ppb
2005-03-230.17 ppb650 to 1 ppb
2005-03-220.57 ppb740 to 2 ppb
2005-03-210 ppb550 ppb
2005-02-280 ppb440 ppb
2005-02-250 ppb880 ppb
2005-02-230 ppb440 ppb
2005-02-220 ppb330 ppb
2004-11-181 ppb101 ppb
2004-11-170.2 ppb540 to 1 ppb
2004-11-160.14 ppb760 to 1 ppb
2004-11-150.5 ppb630 to 1 ppb
2004-09-220 ppb330 ppb
2004-09-210 ppb220 ppb
2004-09-200 ppb660 ppb
2004-09-170.13 ppb870 to 1 ppb
2004-07-211 ppb401 ppb
2004-07-201 ppb201 ppb
2004-07-190.8 ppb510 to 1 ppb
2004-07-160.57 ppb730 to 1 ppb
2004-07-091 ppb101 ppb
2004-05-191.67 ppb301 to 2 ppb
2004-05-181.33 ppb301 to 2 ppb
2004-05-171.8 ppb501 to 2 ppb
2004-05-141.75 ppb801 to 2 ppb
2004-03-240 ppb440 ppb
2004-03-230 ppb220 ppb
2004-03-220 ppb440 ppb
2004-03-190 ppb990 ppb
2004-01-280 ppb330 ppb
2004-01-270 ppb330 ppb
2004-01-260 ppb440 ppb
2004-01-230 ppb550 ppb