Clean Water Act discharge permit · NPDES MDG499843

ROBERT JARBOE PITS 1 & 2, Leonardtown, MD: NPDES MDG499843 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
5Pollutants under a numeric limit
0Pollutants with an effluent exceedance

ROBERT JARBOE PITS 1 & 2, held by Benjamin A. Knott, A,B & H Excavating, Inc., holds NPDES permit MDG499843, which discharges to Lower Tidal Potomac River Via Washington Metro. EPA’s file records it issued December 1, 2011 and expiring April 30, 2015. 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	ROBERT JARBOE PITS 1 & 2
Permittee as filed	Benjamin A. Knott, A,B & H Excavating, Inc.
NPDES ID	MDG499843
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	December 1, 2011
Expiration date	April 30, 2015
Issuing agency	Maryland Department of The Environment
Address	Leonardtown, MD 20650
Receiving water	Lower Tidal Potomac River via WASHINGTON METRO
Receiving water impaired	303(D) Listed
Subwatershed	Poplar Hill Creek (HUC 020700110704)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

5Pollutants on file
5Under a numeric limit
5With 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
Solids, total suspended	2	65
pH	2	48
Flow, in conduit or thru treatment plant	2	48
pH change [range]	2	48
Solids, settleable	1	24

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MDG499843.

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 MDG499843.

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 MDG499843 there.

Nearby on the register

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

This public-records page covers Clean Water Act discharge permit NPDES MDG499843 for ROBERT JARBOE PITS 1 & 2 in Leonardtown, MD, held by Benjamin A. Knott, A,B & H Excavating, Inc., which discharges to the Lower Tidal Potomac River via WASHINGTON METRO. The permit is listed as administratively continued, a Minor discharger class 5, with 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance. The permit was issued December 1, 2011 and expires April 30, 2015, and the status reflects the permit file as it stood on September 15, 2026.