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National Drinking Water Database

1,2,4-Trimethylbenzene in California

1,2,4-Trimethylbenzene is a chemical intermediate, industrial solvent, and component of gasoline, coal tar and petroleum products.

The Most Polluted Communities in California

8 water utilities reported detecting 1,2,4-Trimethylbenzene in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average 1,2,4-Trimethylbenzene level

RankSystem Population Served Positive test results of total reported tests Average Level
1Spindrift Marina
Isleton, CA
1001 of 12 ppb
(2 ppb)
2Santiago Estates
Borrego Springs, CA
1501 of 10.91 ppb
(0.91 ppb)
3Blythe - Mesa Ranch
Blythe, CA
1,1001 of 80.4 ppb
(0 to 3.2 ppb)
4Olivehurst Public U.D.
Olivehurst, CA
9,2383 of 110.31 ppb
(0 to 2.6 ppb)
5Beverly Hills-City, Water Dept.
Beverly Hills, CA
44,2901 of 160.05 ppb
(0 to 0.77 ppb)
6City of Tulare
Tulare, CA
52,0001 of 260.02 ppb
(0 to 0.52 ppb)
7Gswc - Claremont
San Dimas, CA
34,8771 of 294< 0.01 ppb
(0 to 1.2 ppb)
8Calam - Lincoln Oaks
Sacramento, CA
44,7081 of 103< 0.01 ppb
(0 to 0.2 ppb)

Health Based Limits for 1,2,4-Trimethylbenzene

There are no health based standards that EWG is using for this chemical

Violation Summary for 1,2,4-Trimethylbenzene in California

There are no violations reported for this contaminant in California