The Power of Information

National Drinking Water Database


City of Modesto Utilities - Modesto, CA


Serves 190,106 people

1,1-Dichloropropene

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
220 days
Tests ConductedNumber of individual tests done for this contaminant
620 tests

Testing Summary

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

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
Result
Samples taken that dayNumber of Non-DetectsRange of Results
2009-03-260 ppb110 ppb
2009-03-240 ppb11110 ppb
2009-03-190 ppb110 ppb
2009-03-170 ppb15150 ppb
2009-03-160 ppb110 ppb
2009-03-100 ppb15150 ppb
2009-03-030 ppb17170 ppb
2008-12-020 ppb220 ppb
2008-11-180 ppb110 ppb
2008-11-050 ppb110 ppb
2008-10-010 ppb220 ppb
2008-09-240 ppb550 ppb
2008-09-170 ppb19190 ppb
2008-09-100 ppb21210 ppb
2008-09-030 ppb16160 ppb
2008-08-250 ppb110 ppb
2008-08-050 ppb110 ppb
2008-07-280 ppb220 ppb
2008-07-250 ppb110 ppb
2008-07-140 ppb220 ppb
2008-07-080 ppb110 ppb
2008-06-230 ppb110 ppb
2008-06-170 ppb110 ppb
2008-06-120 ppb220 ppb
2008-06-030 ppb110 ppb
2008-05-220 ppb110 ppb
2008-05-190 ppb110 ppb
2008-05-070 ppb110 ppb
2008-04-290 ppb330 ppb
2008-04-230 ppb110 ppb
2008-04-170 ppb110 ppb
2008-03-280 ppb110 ppb
2008-03-270 ppb990 ppb
2008-03-240 ppb330 ppb
2008-03-190 ppb660 ppb
2008-03-180 ppb770 ppb
2008-03-170 ppb550 ppb
2008-03-120 ppb550 ppb
2008-03-110 ppb880 ppb
2008-03-100 ppb440 ppb
2008-03-050 ppb330 ppb
2008-03-040 ppb660 ppb
2008-03-030 ppb550 ppb
2008-02-190 ppb110 ppb
2007-12-170 ppb110 ppb
2007-11-150 ppb110 ppb
2007-11-130 ppb110 ppb
2007-11-050 ppb110 ppb
2007-10-020 ppb220 ppb
2007-09-260 ppb440 ppb
2007-09-250 ppb550 ppb
2007-09-240 ppb330 ppb
2007-09-190 ppb990 ppb
2007-09-180 ppb660 ppb
2007-09-170 ppb330 ppb
2007-09-120 ppb440 ppb
2007-09-110 ppb990 ppb
2007-09-100 ppb330 ppb
2007-09-050 ppb440 ppb
2007-09-040 ppb12120 ppb
2007-09-030 ppb220 ppb
2007-08-150 ppb110 ppb
2007-08-140 ppb110 ppb
2007-08-070 ppb220 ppb
2007-07-170 ppb110 ppb
2007-07-100 ppb110 ppb
2007-07-030 ppb220 ppb
2007-06-130 ppb110 ppb
2007-06-120 ppb110 ppb
2007-06-050 ppb220 ppb
2007-05-010 ppb220 ppb
2007-04-170 ppb220 ppb
2007-04-030 ppb330 ppb
2007-03-060 ppb330 ppb
2007-02-280 ppb110 ppb
2007-02-270 ppb110 ppb
2007-02-210 ppb110 ppb
2007-02-130 ppb110 ppb
2007-02-060 ppb330 ppb
2007-01-020 ppb440 ppb
2006-12-070 ppb110 ppb
2006-12-050 ppb440 ppb
2006-11-130 ppb220 ppb
2006-11-070 ppb220 ppb
2006-10-030 ppb440 ppb
2006-09-050 ppb550 ppb
2006-08-290 ppb220 ppb
2006-08-230 ppb110 ppb
2006-08-220 ppb330 ppb
2006-08-150 ppb330 ppb
2006-08-080 ppb330 ppb
2006-08-010 ppb440 ppb
2006-07-250 ppb220 ppb
2006-07-180 ppb330 ppb
2006-07-110 ppb220 ppb
2006-07-050 ppb440 ppb
2006-06-290 ppb220 ppb
2006-06-280 ppb110 ppb
2006-06-270 ppb110 ppb
2006-06-210 ppb330 ppb
2006-06-200 ppb220 ppb
2006-06-130 ppb330 ppb
2006-06-070 ppb110 ppb
2006-06-060 ppb440 ppb
2006-05-310 ppb220 ppb
2006-05-230 ppb220 ppb
2006-05-160 ppb220 ppb
2006-05-090 ppb110 ppb
2006-05-080 ppb330 ppb
2006-05-030 ppb220 ppb
2006-05-020 ppb660 ppb
2006-04-120 ppb110 ppb
2006-04-110 ppb110 ppb
2006-04-050 ppb220 ppb
2006-04-040 ppb660 ppb
2006-03-080 ppb220 ppb
2006-03-070 ppb440 ppb
2006-03-020 ppb110 ppb
2006-02-220 ppb110 ppb
2006-02-150 ppb110 ppb
2006-02-140 ppb220 ppb
2006-02-070 ppb660 ppb
2006-02-010 ppb110 ppb
2006-01-030 ppb440 ppb
2005-12-270 ppb110 ppb
2005-12-200 ppb110 ppb
2005-12-130 ppb110 ppb
2005-12-070 ppb220 ppb
2005-12-060 ppb220 ppb
2005-11-230 ppb110 ppb
2005-11-220 ppb110 ppb
2005-11-080 ppb110 ppb
2005-11-010 ppb220 ppb
2005-10-250 ppb110 ppb
2005-10-190 ppb220 ppb
2005-10-120 ppb110 ppb
2005-10-110 ppb110 ppb
2005-10-050 ppb110 ppb
2005-10-040 ppb110 ppb
2005-09-270 ppb330 ppb
2005-09-210 ppb110 ppb
2005-09-200 ppb110 ppb
2005-09-130 ppb220 ppb
2005-09-060 ppb330 ppb
2005-09-010 ppb110 ppb
2005-08-240 ppb110 ppb
2005-08-170 ppb110 ppb
2005-08-160 ppb110 ppb
2005-08-100 ppb110 ppb
2005-08-090 ppb110 ppb
2005-08-030 ppb440 ppb
2005-08-020 ppb110 ppb
2005-07-270 ppb220 ppb
2005-07-260 ppb110 ppb
2005-07-200 ppb110 ppb
2005-07-190 ppb220 ppb
2005-07-130 ppb110 ppb
2005-07-120 ppb110 ppb
2005-07-060 ppb330 ppb
2005-07-050 ppb110 ppb
2005-06-280 ppb440 ppb
2005-06-220 ppb220 ppb
2005-06-150 ppb220 ppb
2005-06-140 ppb220 ppb
2005-06-080 ppb110 ppb
2005-06-070 ppb550 ppb
2005-06-020 ppb110 ppb
2005-06-010 ppb220 ppb
2005-05-310 ppb110 ppb
2005-05-250 ppb110 ppb
2005-05-240 ppb220 ppb
2005-05-170 ppb110 ppb
2005-05-120 ppb110 ppb
2005-05-110 ppb110 ppb
2005-05-100 ppb440 ppb
2005-05-040 ppb110 ppb
2005-05-030 ppb440 ppb
2005-04-260 ppb220 ppb
2005-04-130 ppb110 ppb
2005-04-060 ppb220 ppb
2005-04-050 ppb220 ppb
2005-03-240 ppb330 ppb
2005-03-170 ppb110 ppb
2005-03-100 ppb330 ppb
2005-03-030 ppb550 ppb
2005-02-240 ppb220 ppb
2005-02-030 ppb330 ppb
2005-01-270 ppb110 ppb
2005-01-200 ppb110 ppb
2005-01-130 ppb110 ppb
2005-01-060 ppb330 ppb
2004-12-230 ppb110 ppb
2004-12-090 ppb220 ppb
2004-11-180 ppb220 ppb
2004-11-040 ppb330 ppb
2004-10-140 ppb330 ppb
2004-10-070 ppb330 ppb
2004-09-160 ppb110 ppb
2004-09-090 ppb220 ppb
2004-09-020 ppb110 ppb
2004-08-120 ppb990 ppb
2004-08-050 ppb330 ppb
2004-07-220 ppb110 ppb
2004-07-150 ppb220 ppb
2004-07-080 ppb330 ppb
2004-06-100 ppb110 ppb
2004-06-070 ppb110 ppb
2004-06-030 ppb330 ppb
2004-05-130 ppb220 ppb
2004-05-060 ppb440 ppb
2004-04-290 ppb110 ppb
2004-04-150 ppb550 ppb
2004-04-080 ppb550 ppb
2004-03-180 ppb110 ppb
2004-03-110 ppb220 ppb
2004-03-040 ppb550 ppb
2004-02-120 ppb440 ppb
2004-02-050 ppb440 ppb
2004-01-150 ppb110 ppb
2004-01-080 ppb110 ppb