The Power of Information

National Drinking Water Database

o-Xylene in California

o-Xylene is a petroleum-derived solvent used in the printing, rubber, and leather industries; it is also used as a cleaning agent, a thinner for paint, and an ingredient in paints and varnishes.

The Most Polluted Communities in California

25 water utilities reported detecting o-Xylene in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average o-Xylene level

RankSystem Population Served Positive test results of total reported tests Average Level
1Csa 42 Oro Grande
Victorville, CA
7001 of 46.25 ppb
(0 to 25 ppb)
2Arbor Mobile Home Park
Acampo, CA
3401 of 10.7 ppb
(0.7 ppb)
3Twentynine Palms Water Dist
Twentynine Palms, CA
16,3651 of 50.62 ppb
(0 to 3.1 ppb)
4Olivehurst Public U.D.
Olivehurst, CA
9,2383 of 120.37 ppb
(0 to 3.5 ppb)
5Rose Villa Apartments
Rosamond, CA
1001 of 20.34 ppb
(0 to 0.68 ppb)
6Farm Labor Housing
Gridley, CA
5001 of 10.25 ppb
(0.25 ppb)
7Yucaipa Valley WD Id-A&2
Yucaipa, CA
34,0001 of 490.23 ppb
(0 to 11.5 ppb)
8Cedar Lodge Resort
El Portal, CA
251 of 50.18 ppb
(0 to 0.9 ppb)
9Lamont Public Utility Dist
Lamont, CA
14,0001 of 50.18 ppb
(0 to 0.88 ppb)
10Blythe - Mesa Ranch
Blythe, CA
1,1001 of 80.14 ppb
(0 to 1.1 ppb)

Health Based Limits for o-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

Violation Summary for o-Xylene in California

There are no violations reported for this contaminant in California