The Power of Information

National Drinking Water Database

LA Puente Valley Cwd Utilities - Los Angeles, CA

Serves 7,500 people

m- & p- Xylene

Xylene is a petroleum-derived solvent used in the printing, rubber, and leather industries, and as a cleaning agent, a thinner for paint, and an ingredient in paints and varnishes.
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
36 days
Tests ConductedNumber of individual tests done for this contaminant
135 tests

Testing Summary

Health Limit
Legal Limit

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
m- & p- XyleneXylene is a petroleum-derived solvent used in the printing, rubber, and leather industries, and as a cleaning agent, a thinner for paint, and an ingredient in paints and varnishes.0 ppb
0 ppb
10000 ppb
10000 ppb
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 m- & p- Xylene

Health Based Limits for m- & p- Xylene

Maximum Contaminant Limit (MCL)The enforceable standard which defines the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to health-based limits (Maximum Contaminant Level Goals, or MCLGs) as feasible using the best available analytical and treatment technologies and taking cost into consideration. Source: U.S. Environmental Protection Agency.10000 ppb
Maximum Contaminant Limit Goal (MCLG)A non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.10000 ppb

Testing Results

Testing DateAverage
Samples taken that dayNumber of Non-DetectsRange of Results
2009-03-300 ppb440 ppb
2009-03-230 ppb440 ppb
2009-03-160 ppb440 ppb
2009-03-100 ppb440 ppb
2009-03-030 ppb550 ppb
2009-02-230 ppb440 ppb
2009-02-170 ppb440 ppb
2009-02-090 ppb440 ppb
2009-02-020 ppb440 ppb
2009-01-260 ppb440 ppb
2009-01-200 ppb440 ppb
2009-01-120 ppb440 ppb
2009-01-050 ppb440 ppb
2008-12-300 ppb440 ppb
2008-12-230 ppb440 ppb
2008-12-160 ppb440 ppb
2008-12-080 ppb440 ppb
2008-12-010 ppb440 ppb
2008-11-240 ppb440 ppb
2008-11-170 ppb440 ppb
2008-11-130 ppb110 ppb
2008-11-100 ppb440 ppb
2008-11-030 ppb440 ppb
2008-10-300 ppb330 ppb
2008-10-270 ppb440 ppb
2008-10-200 ppb440 ppb
2008-10-130 ppb440 ppb
2008-10-060 ppb440 ppb
2008-09-300 ppb440 ppb
2008-09-220 ppb440 ppb
2008-09-150 ppb440 ppb
2008-09-080 ppb440 ppb
2008-09-020 ppb440 ppb
2008-08-110 ppb440 ppb
2007-04-090 ppb110 ppb
2006-04-060 ppb110 ppb