Clean Water Act discharge permit · NPDES MDG490072

LYTTONSVILLE BRIDGE HYDRO-DEMOLITION, Silver Spring, MD: NPDES MDG490072 discharge permit, effluent exceedances, inspections, penalties

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

LYTTONSVILLE BRIDGE HYDRO-DEMOLITION, held by Maryland Transit Solutions (MTS), holds NPDES permit MDG490072, which discharges to Rock Creek. EPA’s file records it issued October 24, 2025 and expiring April 30, 2027. 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	LYTTONSVILLE BRIDGE HYDRO-DEMOLITION
Permittee as filed	Maryland Transit Solutions (MTS)
NPDES ID	MDG490072
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	October 24, 2025
Expiration date	April 30, 2027
Issuing agency	MARYLAND DEPARTMENT OF THE ENVIRONMENT
Address	Silver Spring, MD 20910
Receiving water	ROCK CREEK

Cited to the EPA ICIS-NPDES permit file (ECHO 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
pH	4	6	0
Flow, in conduit or thru treatment plant	4	6	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MDG490072.

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 MDG490072.

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 MDG490072 there.

Nearby on the register

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

This public-records page covers Clean Water Act NPDES permit MDG490072 for LYTTONSVILLE BRIDGE HYDRO-DEMOLITION in Silver Spring, MD, held by Maryland Transit Solutions (MTS) and discharging to ROCK CREEK. The facts list the permit as Effective, a Minor discharger class, with the permit issued October 24, 2025 and expiring April 30, 2027, and show 2 pollutants on file, both under a numeric limit, with 0 showing an effluent exceedance.