The Power of Information

National Drinking Water Database

Alameda County Water District Utilities - Oakland, CA

Serves 271,000 people


1,1-Dichloropropene is a chlorinated volatile solvent with industrial uses and is found as pollutant in surface and groundwater.
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
18 days
Tests ConductedNumber of individual tests done for this contaminant
133 tests

Testing Summary

Health Limit
Legal Limit

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
1,1-Dichloropropene1,1-Dichloropropene is a chlorinated volatile solvent with industrial uses and is found as pollutant in surface and groundwater.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 1,1-Dichloropropene

Health Based Limits for 1,1-Dichloropropene

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
2008-12-090 ppb110 ppb
2008-07-230 ppb19190 ppb
2008-07-160 ppb660 ppb
2007-12-190 ppb110 ppb
2007-08-150 ppb110 ppb
2007-07-110 ppb10100 ppb
2007-07-100 ppb11110 ppb
2007-06-210 ppb110 ppb
2006-06-210 ppb660 ppb
2006-06-200 ppb19190 ppb
2005-05-250 ppb21210 ppb
2004-11-160 ppb110 ppb
2004-07-070 ppb110 ppb
2004-06-230 ppb20200 ppb
2004-05-190 ppb550 ppb
2004-04-280 ppb110 ppb
2004-04-140 ppb440 ppb
2004-01-140 ppb550 ppb