The Power of Information

National Drinking Water Database

City of Tacoma Water Division Utilities - Tacoma, WA

Serves 305,000 people

DCPA di acid degradate

DCPA di acid degradate is a residue of Dacthal (DCPA), an herbicide used for urban, household and agricultural applications.
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
23 days
Tests ConductedNumber of individual tests done for this contaminant
28 tests

Testing Summary

Health Limit
Legal Limit

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
DCPA di acid degradateDCPA di acid degradate is a residue of Dacthal (DCPA), an herbicide used for urban, household and agricultural applications.0 ppb
0 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
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 DCPA di acid degradate

Health Based Limits for DCPA di acid degradate

There are no health based standards that EWG is using for this chemical

Testing Results

Testing DateAverage
Samples taken that dayNumber of Non-DetectsRange of Results
2006-10-260 ppb110 ppb
2006-10-050 ppb110 ppb
2006-09-210 ppb110 ppb
2006-09-130 ppb110 ppb
2006-07-260 ppb110 ppb
2006-07-110 ppb110 ppb
2006-05-010 ppb110 ppb
2005-10-310 ppb220 ppb
2005-10-260 ppb110 ppb
2005-10-190 ppb110 ppb
2005-08-110 ppb110 ppb
2005-07-280 ppb110 ppb
2005-06-280 ppb220 ppb
2005-06-210 ppb220 ppb
2005-06-200 ppb220 ppb
2005-06-150 ppb110 ppb
2005-06-130 ppb110 ppb
2005-06-090 ppb110 ppb
2005-06-070 ppb220 ppb
2005-05-250 ppb110 ppb
2004-12-220 ppb110 ppb
2004-11-300 ppb110 ppb
2004-10-190 ppb110 ppb