Clean Water Act discharge permit · NPDES MD0063410

ARCAL CHEMICALS INC., Capitol Heights, MD: NPDES MD0063410 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance

ARCAL CHEMICALS INC. holds NPDES permit MD0063410, which discharges to Patuxent River. EPA’s file records it issued February 1, 2004 and expiring January 31, 2009. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	ARCAL CHEMICALS INC.
Permittee as filed	ARCAL CHEMICALS INC.
NPDES ID	MD0063410
Permit status	Effective
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	February 1, 2004
Expiration date	January 31, 2009
Address	Capitol Heights, MD 20743
Receiving water	PATUXENT RIVER
Receiving water impaired	303(D) Listed
Subwatershed	Southwest Branch of the Western Branch Patuxent River (HUC 020600060301)
Other EPA IDs (FRS)	RCRA handler MDD003248937; ICIS-AIR source MD0000002403301011

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

2Pollutants on file
0Under 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	0	34	0
Oil & Grease	0	17	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MD0063410.

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 MD0063410.

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

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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 MD0063410 there.

Nearby on the register

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

ARCAL CHEMICALS INC.'s Clean Water Act discharge permit, MD0063410, is one of 9 individual permits in Prince George's County, Maryland, on EPA's NPDES register, and the register lists 100.0% of those 9 permits as having a violation on file. Among the 8 NPDES permits in the Southwest Branch of the Western Branch Patuxent River subwatershed, this permit is one of the group's members, and it has no pollutants under a numeric limit or with an effluent exceedance, both counted as 0. Of all 9 individual permits in the county, 0.0% were issued before this one, which took effect on February 1, 2004.