Clean Water Act discharge permit · NPDES MD0071030

NATIONAL OCEAN SERVICE - OXFORD LAB, Oxford, MD: NPDES MD0071030 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
2Pollutants under a numeric limit
0Pollutants with an effluent exceedance

NATIONAL OCEAN SERVICE - OXFORD LAB, held by United States Dept of Commerce, NOAA, NOS, Cooperative Oxford Laboratory, holds NPDES permit MD0071030, which discharges to Lower Choptank River. EPA’s file records it issued May 10, 2016 and expiring May 31, 2021. 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	NATIONAL OCEAN SERVICE - OXFORD LAB
Permittee as filed	United States Dept of Commerce, NOAA, NOS, Cooperative Oxford Laboratory
NPDES ID	MD0071030
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Federal facility
Issued	May 10, 2016
Expiration date	May 31, 2021
Issuing agency	Maryland Department of The Environment
Address	Oxford, MD 21654
Receiving water	Lower Choptank River
Receiving water impaired	303(D) Listed
Subwatershed	Tred Avon River-Choptank River (HUC 020600050504)
SIC	8071 – Medical Laboratories

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

2Pollutants on file
2Under a numeric limit
2With a violation of any kind
0With 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
Flow, in conduit or thru treatment plant	8	11	0
Chlorine, total residual	4	4	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MD0071030.

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 MD0071030.

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.

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, MD0071030.

Start the watch

How we handle your data → Privacy

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 MD0071030 there.

Nearby on the register

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

This public-records page covers NPDES permit MD0071030, held by NATIONAL OCEAN SERVICE - OXFORD LAB in Oxford, MD, which discharges to the Lower Choptank River under an administratively continued status. The page lists a Minor Discharger class, 0 pollutants under a numeric limit, and 0 pollutants with an effluent exceedance, and records the permit as issued May 10, 2016 and expiring May 31, 2021, with the Tred Avon River-Choptank River subwatershed, HUC 0206000505.