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Contaminant guide

Hexachlorobenzene in drinking water

The EPA limit for Hexachlorobenzene in drinking water is 1 µg/L. Of the 26,000 water suppliers tested, 125 had it detected.

1 µg/L
EPA limit (MCL)
0.5%
of suppliers detected it
(125/26,000)

What the EPA limit means

⚖️

1 µg/L

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

🎯

0.0 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 Hexachlorobenzene 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
Battlement Mesa Md Parachute CO
12 µg/L 1200%
of the EPA limit, at the 95th percentile of samples — 1 µg/L
Pendleton Water Association Many LA
2.632 µg/L 263%
of the EPA limit, at the 95th percentile of samples — 1 µg/L
Utilities Inc - North Park Water Supply Mandeville LA
0.7610 µg/L 76%
of the EPA limit 1 µg/L
Monterey Rural Water System Inc Monterey LA
0.7380 µg/L 74%
of the EPA limit 1 µg/L
Calcasieu Parish Ww District No 5 Lake Charles LA
0.6600 µg/L 66%
of the EPA limit 1 µg/L
City of Pineville Water System Pineville LA
0.5240 µg/L 52%
of the EPA limit 1 µg/L
Tri Cnty Jt Muni Auth — PA
0.5100 µg/L 51%
of the EPA limit 1 µg/L
Aspc Lewis Complex Water System Buckeye AZ
0.5000 µg/L 50%
of the EPA limit 1 µg/L
South Claiborne Water System Athens LA
0.4471 µg/L 45%
of the EPA limit 1 µg/L
Wayne Water Districts Goldsboro NC
0.3800 µg/L 38%
of the EPA limit 1 µg/L
Rambin-Wallace Water System Pelican LA
0.3140 µg/L 31%
of the EPA limit 1 µg/L
Town of Pearl River Pearl River LA
0.3100 µg/L 31%
of the EPA limit 1 µg/L
Red Hill Waterworks Inc. Georgetown LA
0.3000 µg/L 30%
of the EPA limit 1 µg/L
Town of Pollock Water System Pollock LA
0.2728 µg/L 27%
of the EPA limit 1 µg/L
Diversion Water - Stonehill — LA
0.2400 µg/L 24%
of the EPA limit 1 µg/L
Village of Goldonna Water System Goldonna LA
0.2365 µg/L 24%
of the EPA limit 1 µg/L
Newburgh Consolidated Wd Newburgh NY
0.2235 µg/L 22%
of the EPA limit 1 µg/L
Village of Downsville Water System Downsville LA
0.2100 µg/L 21%
of the EPA limit 1 µg/L
Columbia Heights Water District Columbia LA
0.2080 µg/L 21%
of the EPA limit 1 µg/L
Village of Morganza Water System Morganza LA
0.2000 µg/L 20%
of the EPA limit 1 µg/L
Jeff Davis Water District 4 Jennings LA
0.1970 µg/L 20%
of the EPA limit 1 µg/L
Town of Rayville Water System Rayville LA
0.1900 µg/L 19%
of the EPA limit 1 µg/L
South Grant Water Corporation Bentley LA
0.1900 µg/L 19%
of the EPA limit 1 µg/L
Rapides Parish Waterworks District 3 — LA
0.1845 µg/L 18%
of the EPA limit 1 µg/L
Southwest Allen Ww District No 2 Kinder LA
0.1714 µg/L 17%
of the EPA limit 1 µg/L

Frequently asked questions about Hexachlorobenzene

What is Hexachlorobenzene in drinking water?

Hexachlorobenzene 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 Hexachlorobenzene?

The EPA's Maximum Contaminant Level for Hexachlorobenzene is 1 µg/L, and its health goal (MCLG) is 0.0 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 Hexachlorobenzene in US tap water?

Of the 26,000 water suppliers with results on file, 125 detected Hexachlorobenzene — 0.5% of those tested.