The Power of Information

National Drinking Water Database

Westerly Water Department Utilities - North Kingstown, RI

Serves 38,000 people


1,2,3-Trichlorobenzene is a solvent and an intermediate for chemical manufacturing that was used historically as an insecticide for termite control.
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
28 days
Tests ConductedNumber of individual tests done for this contaminant
41 tests

Testing Summary

Health Limit
Legal Limit

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
1,2,3-Trichlorobenzene1,2,3-Trichlorobenzene is a solvent and an intermediate for chemical manufacturing that was used historically as an insecticide for termite control.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 1,2,3-Trichlorobenzene

Health Based Limits for 1,2,3-Trichlorobenzene

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
2009-04-230 ppb110 ppb
2008-12-100 ppb110 ppb
2008-10-150 ppb110 ppb
2008-10-140 ppb110 ppb
2008-09-220 ppb110 ppb
2008-09-090 ppb330 ppb
2008-09-040 ppb110 ppb
2008-06-170 ppb110 ppb
2008-06-130 ppb330 ppb
2007-12-120 ppb220 ppb
2007-12-040 ppb110 ppb
2007-10-260 ppb110 ppb
2007-09-260 ppb330 ppb
2007-03-230 ppb110 ppb
2006-10-230 ppb110 ppb
2006-09-280 ppb110 ppb
2006-09-260 ppb220 ppb
2006-03-170 ppb110 ppb
2005-12-270 ppb110 ppb
2005-12-200 ppb110 ppb
2005-09-280 ppb110 ppb
2005-09-270 ppb220 ppb
2005-09-210 ppb110 ppb
2005-09-140 ppb330 ppb
2005-06-200 ppb330 ppb
2005-05-180 ppb110 ppb
2005-05-170 ppb110 ppb
2004-09-020 ppb110 ppb