The Power of Information

National Drinking Water Database

Northern Calif Youth Corr. Center Utilities - Stockton, CA

Serves 4,834 people


1,1-Dichloroethane is used in industrial chemical synthesis, as a solvent for plastics, paint, varnish, and finish removers and as an insecticide/fumigant.
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
40 days
Tests ConductedNumber of individual tests done for this contaminant
103 tests

Testing Summary

Health Limit
Legal Limit

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
1,1-Dichloroethane1,1-Dichloroethane is used in industrial chemical synthesis, as a solvent for plastics, paint, varnish, and finish removers and as an insecticide/fumigant.0.04 ppb
0.83 ppb
3 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 1,1-Dichloroethane

Health Based Limits for 1,1-Dichloroethane

California Public Health GoalsDefined by the State of California Office of Environmental Health Hazard Assessment (OEHHA) as the level of contaminant that is allowed in drinking water. For acutely toxic substances, levels are set at which scientific evidence indicates that no known or anticipated adverse effects on health will occur, plus an adequate margin-of safety. PHGs for carcinogens or other substances which can cause chronic disease shall be based solely on health effects without regard to cost impacts and shall be set at levels which OEHHA has determined do not pose any significant risk to health.3 ppb

Testing Results

Testing DateAverage
Samples taken that dayNumber of Non-DetectsRange of Results
2009-03-170 ppb330 ppb
2009-03-040.17 ppb320 to 0.5 ppb
2009-02-050 ppb330 ppb
2009-02-040 ppb330 ppb
2009-01-200 ppb330 ppb
2009-01-070 ppb330 ppb
2008-12-090 ppb330 ppb
2008-11-130 ppb330 ppb
2008-11-050 ppb330 ppb
2008-09-090 ppb330 ppb
2008-08-010 ppb330 ppb
2008-07-150.18 ppb310 to 0.39 ppb
2008-06-180.18 ppb310 to 0.37 ppb
2008-06-110.83 ppb310 to 1.3 ppb
2008-05-210 ppb330 ppb
2008-05-070 ppb330 ppb
2008-04-160.11 ppb320 to 0.33 ppb
2008-03-130 ppb330 ppb
2008-03-050 ppb330 ppb
2008-02-220 ppb330 ppb
2008-02-200 ppb330 ppb
2008-01-170 ppb330 ppb
2008-01-160 ppb330 ppb
2007-12-260 ppb330 ppb
2007-11-280 ppb330 ppb
2007-11-190 ppb330 ppb
2007-10-110 ppb220 ppb
2007-09-110 ppb220 ppb
2007-08-160 ppb220 ppb
2007-07-310 ppb220 ppb
2007-07-240 ppb220 ppb
2007-06-200 ppb220 ppb
2007-06-060 ppb220 ppb
2007-05-150 ppb220 ppb
2007-04-120.3 ppb210 to 0.6 ppb
2007-02-210 ppb220 ppb
2006-11-010 ppb110 ppb
2006-09-200 ppb110 ppb
2006-06-070 ppb220 ppb
2004-06-080 ppb110 ppb