Clean Water Act discharge permit · NPDES MD0020630

NEWARK WWTP, Newark, MD: NPDES MD0020630 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
11Pollutants under a numeric limit
9Pollutants with an effluent exceedance

NEWARK WWTP holds NPDES permit MD0020630, which discharges to Marshall Creek. EPA’s file records it issued December 1, 2006 and expiring November 30, 2011. 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	NEWARK WWTP
Permittee as filed	NEWARK WWTP
NPDES ID	MD0020630
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	December 1, 2006
Expiration date	November 30, 2011
Issuing agency	MD DEPT OF THE ENVIRONMENT
Address	Newark, MD 21841
Receiving water	MARSHALL CREEK
Receiving water impaired	303(D) Listed
Subwatershed	Newport Bay (HUC 020403030401)
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

11Pollutants on file
11Under a numeric limit
11With a violation of any kind
9With 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
Nitrogen, ammonia total [as N]	8	54	46	January 31, 2021	816% over the limit
Oxygen, dissolved [DO]	3	44	41	November 30, 2020	71% over the limit
E. coli	1	36	33	January 31, 2021	1,820% over the limit
BOD, 5-day, 20 deg. C	8	37	21	September 30, 2020	51% over the limit
pH	2	15	5	December 31, 2020
Coliform, fecal general	1	6	4	July 31, 2005	177% over the limit
Flow, in conduit or thru treatment plant	1	10	3	September 30, 2009	9,900% over the limit
Nitrogen, Kjeldahl, total [as N]	8	14	2	May 31, 2001	17% over the limit
Chlorine, total residual	1	9	2	December 31, 2020	445% over the limit
Solids, total suspended	2	10	0
Turbidity	1	6	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 MD0020630.

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, MD0020630.

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 MD0020630 there.

Nearby on the register

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

This public-records page covers NPDES permit MD0020630 for NEWARK WWTP in Newark, MD, which discharges to Marshall Creek and is listed as administratively continued with a minor discharger class. The figures listed are 11 for the discharger class count, 9 for pollutants under a numeric limit, and 9 for pollutants with an effluent exceedance.