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National Drinking Water Database


Southwood Water System Utilities - Tacoma, WA


Serves 18,643 people

Dimethylphthalate

Dimethylphthalate is a manufactured chemicals used in solid rocket propellants, plastics, molding powders, pesticides and insect repellants.
 
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
9 days
Tests ConductedNumber of individual tests done for this contaminant
22 tests

Testing Summary

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
DimethylphthalateDimethylphthalate is a manufactured chemicals used in solid rocket propellants, plastics, molding powders, pesticides and insect repellants.0 ppb
0 ppb
No
270000 ppb
Legal 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 Dimethylphthalate

Health Based Limits for Dimethylphthalate

StandardDescriptionLevel
EPA Human Health Water Quality CriteriaWater quality criteria set by the US EPA provide guidance for states and tribes authorized to establish water quality standards under the Clean Water Act (CWA) to protect human health. These are non-enforceable standards based upon exposure by both drinking water and the contribution of water contamination to other consumed foods. Source: U.S. Environmental Protection Agency.270000 ppb

Testing Results

Testing DateAverage
Result
Samples taken that dayNumber of Non-DetectsRange of Results
2006-03-280 ppb660 ppb
2006-03-270 ppb330 ppb
2005-04-260 ppb110 ppb
2004-12-230 ppb110 ppb
2004-12-220 ppb110 ppb
2004-12-150 ppb110 ppb
2004-09-010 ppb110 ppb
2004-08-260 ppb770 ppb
2004-05-260 ppb110 ppb