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National Drinking Water Database

1,2,4-Trimethylbenzene in Washington

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

The Most Polluted Communities in Washington

4 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
1Cascade Village Mhp
Moses Lake, WA
1311 of 30.27 ppb
(0 to 0.8 ppb)
2Metz Water Association
Spokane, WA
2501 of 30.2 ppb
(0 to 0.59 ppb)
3Firgrove Mutual Inc
Puyallup, WA
25,4921 of 40.18 ppb
(0 to 0.7 ppb)
4Roche Harbor Water System Inc
Friday Harbor, WA
3291 of 40.08 ppb
(0 to 0.3 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 Washington

There are no violations reported for this contaminant in Washington