Clean Water Act discharge permit · NPDES MD0023868

GREENBRIER STATE PARK WWTP, Boonsboro, MD: NPDES MD0023868 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
8Pollutants under a numeric limit
4Pollutants with an effluent exceedance

GREENBRIER STATE PARK WWTP holds NPDES permit MD0023868, which discharges to Antietam Creek. EPA’s file records it issued June 22, 2017 and expiring July 31, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	GREENBRIER STATE PARK WWTP
Permittee as filed	GREENBRIER STATE PARK WWTP
NPDES ID	MD0023868
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	June 22, 2017
Expiration date	July 31, 2022
Issuing agency	Maryland Department of The Environment
Address	Boonsboro, MD 21713
Receiving water	ANTIETAM CREEK
Subwatershed	Beaver Creek (HUC 020700041007)
SIC	4952 – Sewerage Systems

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

8Pollutants on file
8Under a numeric limit
6With a violation of any kind
4With an effluent exceedance

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Oxygen, dissolved [DO]	2	103	19	February 28, 2003	83% over the limit
Nitrogen, ammonia total [as N]	8	8	8	April 30, 2009	442% over the limit
Solids, total suspended	4	2	2	January 31, 2010	42% over the limit
pH	2	1	1	February 29, 2008
Temperature, water deg. fahrenheit	6	7	0
Flow, in conduit or thru treatment plant	2	7	0
BOD, 5-day, 20 deg. C	4	0	0
E. coli	1	0	0

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES MD0023868.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID MD0023868 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

This public-records page covers NPDES permit MD0023868 for GREENBRIER STATE PARK WWTP in Boonsboro, MD, a minor discharger whose permit is administratively continued after its expiration date. The facts list 8 as the discharger class, 4 pollutants under a numeric limit, and 4 pollutants with an effluent exceedance.