The Power of Information

National Drinking Water Database

City of Fresno Water Division Utilities - Fresno, CA

Serves 390,350 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
41 days
Tests ConductedNumber of individual tests done for this contaminant
183 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
2009-04-060 ppb220 ppb
2009-04-020 ppb110 ppb
2009-03-300 ppb110 ppb
2009-03-240 ppb110 ppb
2009-03-090 ppb660 ppb
2009-03-060 ppb550 ppb
2009-03-040 ppb440 ppb
2009-03-030 ppb770 ppb
2009-02-110 ppb440 ppb
2009-02-100 ppb660 ppb
2009-02-090 ppb660 ppb
2009-02-020 ppb770 ppb
2009-01-120 ppb440 ppb
2009-01-080 ppb17170 ppb
2009-01-070 ppb220 ppb
2008-12-190 ppb110 ppb
2008-12-180 ppb110 ppb
2008-12-100 ppb770 ppb
2008-12-090 ppb660 ppb
2008-12-030 ppb11110 ppb
2008-11-210 ppb110 ppb
2008-11-180 ppb110 ppb
2008-11-130 ppb660 ppb
2008-11-070 ppb110 ppb
2008-11-060 ppb12120 ppb
2008-11-050 ppb550 ppb
2008-11-040 ppb330 ppb
2008-07-170 ppb110 ppb
2008-07-140 ppb660 ppb
2008-07-010 ppb12120 ppb
2008-06-130 ppb110 ppb
2008-05-090 ppb550 ppb
2008-05-080 ppb440 ppb
2008-04-010 ppb110 ppb
2008-03-110 ppb110 ppb
2006-05-240 ppb220 ppb
2006-05-230 ppb330 ppb
2006-01-040 ppb11110 ppb
2006-01-030 ppb550 ppb
2005-09-140 ppb220 ppb
2005-09-130 ppb110 ppb