Velarion Records
Follow this permit Velarion Records emails you this permit’s record, cited to the public filing, and tells you when the register changes it. Free.
One more press on the next page sends it; there is no link to click in an email. The continuous daily watch on every change is the paid alert. Unsubscribe any time.
Also free: The Pay Desk, the weekly executive pay briefing.

Clean Water Act discharge permit · NPDES MDG870304

MONTGOMERY COUNTY PUBLIC SAFETY, Gaithersburg, MD: NPDES MDG870304 discharge permit, effluent exceedances, inspections, penalties

MONTGOMERY COUNTY PUBLIC SAFETY holds NPDES permit MDG870304, which discharges to Potomac River Mo Cnty. EPA’s file records it issued February 10, 2023 and expiring March 31, 2025.

MONTGOMERY COUNTY PUBLIC SAFETY, Gaithersburg, Maryland: Coverage under a general permit MDG870304; Administratively continued (past its expiration date and still in force until reissued); issued February 10, 2023, term to March 31, 2025, by MARYLAND DEPARTMENT OF THE ENVIRONMENT; discharges to POTOMAC RIVER MO CNTY.

MONTGOMERY COUNTY PUBLIC SAFETY among its neighbors

EPA’s permit file holds 14 discharge permits in the Muddy Branch subwatershed (HUC 020700081001), MDG870304 among them. Its county holds 146, 3 of them major permits; MDG870304 is a minor permit.

Other permits in the Muddy Branch subwatershed (HUC 020700081001)

What the register holds for MONTGOMERY COUNTY PUBLIC SAFETY: its NPDES ID, its permit type and status, its dates, its address in Gaithersburg, Maryland, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MDG870304.

Identity

Facility as filedMONTGOMERY COUNTY PUBLIC SAFETY
Permittee as filedMONTGOMERY COUNTY PUBLIC SAFETY
NPDES IDMDG870304
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedFebruary 10, 2023
Expiration dateMarch 31, 2025
Issuing agencyMARYLAND DEPARTMENT OF THE ENVIRONMENT
AddressGaithersburg, MD 20878
Receiving waterPOTOMAC RIVER MO CNTY
Receiving water impaired303(D) Listed
SubwatershedMuddy Branch (HUC 020700081001)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES MDG870304.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES MDG870304.

Inspections

EPA’s inspection file holds no inspection for NPDES MDG870304.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES MDG870304.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MDG870304.

Start the watch

How often?
  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
  • The whole register — $18,000/year

How we handle your data → Privacy

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

This public-records page covers NPDES permit MDG870304 held by MONTGOMERY COUNTY PUBLIC SAFETY in Gaithersburg, Maryland, which discharges to Potomac River Mo Cnty, with a permit status of Administratively continued and a discharger class of Minor. The permit was issued February 10, 2023 and expires March 31, 2025, and the page lists 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.