EPA-regulated facilities in Calvert County, MD

There are 554 EPA-regulated facilities inside Calvert County, Maryland. The most common kinds are drinking water systems (251), water discharge (129), hazardous waste (114). 15 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 24 have a violation on record. Penalties over the last five years total $101k across 5 sites.

Open the map of Calvert County

554facilities in the county
15in significant noncompliance
24with a violation on record
$101kin penalties, last 5 years

By category

CategoryFacilities
Hazardous waste114
Large quantity generators9
Small quantity generators63
Transporters1
Chemical (RMP/TRI)3
Superfund2
Air emissions101
Major sources1
Synthetic minor sources1
Minor sources84
Water discharge129
Major permits2
Minor permits113
Drinking water systems251
Greenhouse gas reporters1
Recycling centers5

A facility enrolled in several programs counts once in the total and once in each of its categories.

In significant noncompliance

The EPA's designation for its most serious or persistent violations, as of the latest data.

Largest penalties

Penalties assessed over the last five years.

Superfund sites

Bordering counties

Reading these numbers

These are regulatory records, not measurements of pollution. Most facilities appear because they hold a permit or file reports, and most of them are compliant; a listing is not a claim that a facility has polluted anything. Compliance status and penalties are the EPA's own determinations in data retrieved Oct 9, 2026. The Data page explains where each record comes from and how it can mislead.