The Power of Information

National Drinking Water Database


Sioux City Water Supply Utilities - Sioux City, IA


Serves 85,028 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
26 days
Tests ConductedNumber of individual tests done for this contaminant
184 tests

Testing Summary

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

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.1.57 ppb
2.5 ppb
NoNo
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

StandardDescriptionLevel
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
Result
Samples taken that dayNumber of Non-DetectsRange of Results
2009-06-152 ppb402 ppb
2009-02-102 ppb2001 to 3 ppb
2008-12-092.3 ppb2020 to 3 ppb
2008-10-072.5 ppb1620 to 4 ppb
2008-08-141.95 ppb2030 to 3 ppb
2008-06-111.81 ppb1610 to 2 ppb
2008-06-101.5 ppb401 to 2 ppb
2008-04-091.38 ppb1610 to 2 ppb
2008-03-101.5 ppb401 to 2 ppb
2007-11-271.75 ppb401 to 2 ppb
2007-09-271.5 ppb401 to 2 ppb
2007-06-191.75 ppb401 to 2 ppb
2007-03-140.5 ppb420 to 1 ppb
2006-12-112.25 ppb402 to 3 ppb
2006-09-250 pCi/L*110 ppb
2006-09-251.67 ppb301 to 2 ppb
2006-06-262 ppb402 ppb
2006-03-202 ppb402 ppb
2005-12-121.5 ppb410 to 2 ppb
2005-09-201 ppb420 to 2 ppb
2005-05-022 ppb402 ppb
2005-03-071.25 ppb401 to 2 ppb
2004-12-142 ppb401 to 3 ppb
2004-09-220.75 ppb410 to 1 ppb
2004-06-221 ppb410 to 2 ppb
2004-03-041 ppb410 to 2 ppb