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Contaminant guide

Styrene in drinking water

The EPA limit for Styrene in drinking water is 100 µg/L. Of the 34,516 water suppliers tested, 226 had it detected.

100 µg/L
EPA limit (MCL)
0.7%
of suppliers detected it
(226/34,516)

What the EPA limit means

⚖️

100 µg/L

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

🎯

100 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 Styrene 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
Town of Saluda — —
420 µg/L 420%
of the EPA limit, at the 95th percentile of samples — 100 µg/L
Farm Water Works Sanford NC
219.1 µg/L 219%
of the EPA limit, at the 95th percentile of samples — 100 µg/L
Chaparral Water Company — —
22 µg/L 22%
of the EPA limit 100 µg/L
Ridgecrest North Subdivision Morris IL
16.909 µg/L 17%
of the EPA limit 100 µg/L
Deep Run Adult Village Plumstead twp.-1523 NJ
10.71 µg/L 11%
of the EPA limit 100 µg/L
Timberline Shores Gaston NC
9.04 µg/L 9%
of the EPA limit 100 µg/L
Hudson Valley Water Co #2 Rosendale NY
9 µg/L 9%
of the EPA limit 100 µg/L
Spinnaker Point Littleton NC
7.2 µg/L 7.2%
of the EPA limit 100 µg/L
Manoogs Isle Mobile Home Park Anchorage AK
6.36 µg/L 6.4%
of the EPA limit 100 µg/L
52nd Ave Water Group Kenosha WI
6.23 µg/L 6.2%
of the EPA limit 100 µg/L
Brandt Point Sequim WA
5.9 µg/L 5.9%
of the EPA limit 100 µg/L
Lyme Academy Apartments,Llc Old Lyme CT
5.775 µg/L 5.8%
of the EPA limit 100 µg/L
Hemingford, Village of Hemingford NE
3.4 µg/L 3.4%
of the EPA limit 100 µg/L
Rialto, City of Rialto CA
3.31 µg/L 3.3%
of the EPA limit 100 µg/L
East Middlebury Fd 1 Middlebury VT
3.03 µg/L 3%
of the EPA limit 100 µg/L
Mesa Grande Wsc Granbury TX
2.54 µg/L 2.5%
of the EPA limit 100 µg/L
Lac Vieux Desert Watersmeet MI
2.5 µg/L 2.5%
of the EPA limit 100 µg/L
West Kern Water District Taft CA
2.1 µg/L 2.1%
of the EPA limit 100 µg/L
Lanark Village (City of Carrabelle) Carrabelle FL
2 µg/L 2%
of the EPA limit 100 µg/L
Terra Linda Farms Riverdale CA
2 µg/L 2%
of the EPA limit 100 µg/L
Stonetown Clearview Mhc Noble OK
1.975 µg/L 2%
of the EPA limit 100 µg/L
Fort Drum Leray NY
1.9255 µg/L 1.9%
of the EPA limit 100 µg/L
Chaffee Water Co Sardinia NY
1.9 µg/L 1.9%
of the EPA limit 100 µg/L
Valley View Manor Rantoul IL
1.871 µg/L 1.9%
of the EPA limit 100 µg/L
Good Life Mhp Liberty NY
1.8 µg/L 1.8%
of the EPA limit 100 µg/L

Frequently asked questions about Styrene

What is Styrene in drinking water?

Styrene 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 Styrene?

The EPA's Maximum Contaminant Level for Styrene is 100 µg/L, and its health goal (MCLG) is 100 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 Styrene in US tap water?

Of the 34,516 water suppliers with results on file, 226 detected Styrene — 0.7% of those tested.