The Power of Information

National Drinking Water Database

San Gabriel Valley WC - Fontana Utilities - Los Angeles, CA

Serves 102,599 people

Methyl isobutyl ketone

Methyl isobutyl ketone (4-Methyl-2-pentanone) is an industrial chemical used in the production of paints, pesticides, textiles, inks and rubber.
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
21 days
Tests ConductedNumber of individual tests done for this contaminant
58 tests

Testing Summary

Health Limit
Legal Limit

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
Methyl isobutyl ketoneMethyl isobutyl ketone (4-Methyl-2-pentanone) is an industrial chemical used in the production of paints, pesticides, textiles, inks and rubber.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 Methyl isobutyl ketone

Health Based Limits for Methyl isobutyl ketone

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
2009-03-100 ppb550 ppb
2009-03-040 ppb330 ppb
2009-02-250 ppb110 ppb
2009-02-180 ppb770 ppb
2009-02-040 ppb550 ppb
2008-10-290 ppb440 ppb
2008-10-220 ppb440 ppb
2008-10-150 ppb220 ppb
2008-08-270 ppb110 ppb
2008-07-080 ppb330 ppb
2008-06-110 ppb110 ppb
2008-05-280 ppb330 ppb
2008-04-090 ppb220 ppb
2008-04-020 ppb110 ppb
2008-03-270 ppb110 ppb
2008-03-190 ppb440 ppb
2008-03-120 ppb550 ppb
2008-03-050 ppb220 ppb
2008-02-120 ppb220 ppb
2008-01-300 ppb110 ppb
2008-01-230 ppb110 ppb