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Contaminant guide

Toluene in drinking water

The EPA limit for Toluene in drinking water is 1000 µg/L. Of the 34,531 water suppliers tested, 1,467 had it detected.

1000 µg/L
EPA limit (MCL)
4.2%
of suppliers detected it
(1,467/34,531)

What the EPA limit means

⚖️

1000 µg/L

Maximum Contaminant Level — the enforceable ceiling a supplier must stay under.

🎯

1000 µg/L

Health goal (MCLG) — the level with no known health effect. It is a goal, not a legal limit, and is often zero for carcinogens.

🧪

SYR4

Where these measurements come from. Hover the tag for the EPA programme and years.

Where Toluene was found

The water suppliers reporting the highest levels, worst first. For lead and copper that is the 90th-percentile result the action level is written against; for Six-Year Review data, the 95th percentile of each system's samples.

SupplierCityStateLevel vs EPA limit
Country Estates Mobile Home Park — MN
2000 µg/L 200%
of the EPA limit, at the 95th percentile of samples — 1000 µg/L
Veolia Water New York Clarkstown NY
1060 µg/L 106%
of the EPA limit, at the 95th percentile of samples — 1000 µg/L
Perry Lake Estates — PA
660 µg/L 66%
of the EPA limit 1000 µg/L
Stoneworth Apts Wtp — PA
600.25 µg/L 60%
of the EPA limit 1000 µg/L
Pocahontas County Psd Frank WV
580 µg/L 58%
of the EPA limit 1000 µg/L
Delafield Woods 828 Delafield WI
477.24 µg/L 48%
of the EPA limit 1000 µg/L
Palo Water Supply Palo IA
470 µg/L 47%
of the EPA limit 1000 µg/L
Choctaw - Tucker Choctaw MS
450.025 µg/L 45%
of the EPA limit 1000 µg/L
Happy Trails Mhp Topsham ME
447.45 µg/L 45%
of the EPA limit 1000 µg/L
Waterville Fire District 1 Waterville VT
415.92 µg/L 42%
of the EPA limit 1000 µg/L
Knapp Waterworks Knapp WI
340 µg/L 34%
of the EPA limit 1000 µg/L
Moorefield Municipal Water Moorefield WV
340 µg/L 34%
of the EPA limit 1000 µg/L
Leisure Pines Mutual Water Co Twain Harte CA
301.95 µg/L 30%
of the EPA limit 1000 µg/L
South Desoto Water System Mansfield LA
259.658 µg/L 26%
of the EPA limit 1000 µg/L
Farm Water Works Sanford NC
253.75 µg/L 25%
of the EPA limit 1000 µg/L
Cal Am - Raymond — CA
213 µg/L 21%
of the EPA limit 1000 µg/L
Santa Ana Eastside Santa Ana Pueblo NM
190 µg/L 19%
of the EPA limit 1000 µg/L
Oak Tree Circle Park Llc Bushnell FL
176 µg/L 18%
of the EPA limit 1000 µg/L
Dunnell Dunnell MN
133.27 µg/L 13%
of the EPA limit 1000 µg/L
Cal Am - Oakhurst — CA
130.5 µg/L 13%
of the EPA limit 1000 µg/L
Montara Water and Sanitary District Montara CA
120.035 µg/L 12%
of the EPA limit 1000 µg/L
Lone Grove Lone Grove OK
116.933 µg/L 12%
of the EPA limit 1000 µg/L
Bakman Water Company Fresno CA
114.29 µg/L 11%
of the EPA limit 1000 µg/L
Brandt Point Sequim WA
112.42 µg/L 11%
of the EPA limit 1000 µg/L
Estates at Highland Ridge Hopkinton MA
103 µg/L 10%
of the EPA limit 1000 µg/L

Frequently asked questions about Toluene

What is Toluene in drinking water?

Toluene is monitored in US public drinking water under EPA rules. Each supplier's result is reported to the EPA and published here with its source and period.

What is the EPA limit for Toluene?

The EPA's Maximum Contaminant Level for Toluene is 1000 µg/L, and its health goal (MCLG) is 1000 µg/L. A result above the limit means the supplier must act; the goal is the level at which no health effects are expected.

How common is Toluene in US tap water?

Of the 34,531 water suppliers with results on file, 1,467 detected Toluene — 4.2% of those tested.