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Clean Water Act discharge permit · NPDES MDG490021

DARCY S&G, Charlotte Hall, MD: NPDES MDG490021 discharge permit, effluent exceedances, inspections, penalties

DARCY S&G, held by CHENEY ENTERPRISES, LP, holds NPDES permit MDG490021. EPA’s file records it issued September 10, 2021 and expiring April 30, 2022.

DARCY S&G, Charlotte Hall, Maryland: Coverage under a general permit MDG490021, held by CHENEY ENTERPRISES, LP; Administratively continued (past its expiration date and still in force until reissued); issued September 10, 2021, term to April 30, 2022, by MARYLAND DEPARTMENT OF THE ENVIRONMENT.

  • pH: 22 limits, 124 violations of any kind, 0 effluent exceedances.
  • Solids, total suspended: 20 limits, 104 violations of any kind, 0 effluent exceedances.
  • Flow, in conduit or thru treatment plant: 12 limits, 72 violations of any kind, 0 effluent exceedances.
  • Temp. difference, summer [deg. F]: 4 limits, 4 violations of any kind, 0 effluent exceedances.
  • Temperature, summer [deg. F]: 4 limits, 4 violations of any kind, 0 effluent exceedances.

DARCY S&G among its neighbors

EPA’s permit file holds 5 discharge permits in the Trinity Church Run-Wicomico River subwatershed (HUC 020700110501), MDG490021 among them. Its county holds 58, 4 of them major permits; MDG490021 is a minor permit.

Other permits in the Trinity Church Run-Wicomico River subwatershed (HUC 020700110501)

  • BYLER S&G, Mechanicsville: MDG498016, minor permit, discharging to Lower Patuxent River, permit term to April 30, 2015
  • CHARLOTTE HALL SQUARE, Charlotte Hall: MD3225S03, minor permit, discharging to LOWER PATUXENT RIVER, permit term to April 30, 2026
  • SOUTHERN MD. PRE-RELEASE UNIT, Hughesville: MD0023914, minor permit, discharging to LOWER POTOMAC RIVER, permit term to August 31, 2021
  • SWAREY SAND AND GRAVEL, Charlotte Hall: MDG499789, minor permit, discharging to GILBERT SWAMP, permit term to September 30, 2014

Identity

Facility as filedDARCY S&G
Permittee as filedCHENEY ENTERPRISES, LP
NPDES IDMDG490021
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedSeptember 10, 2021
Expiration dateApril 30, 2022
Issuing agencyMARYLAND DEPARTMENT OF THE ENVIRONMENT
AddressCharlotte Hall, MD 20622
SubwatershedTrinity Church Run-Wicomico River (HUC 020700110501)

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
pH221240
Solids, total suspended201040
Flow, in conduit or thru treatment plant12720
Temp. difference, summer [deg. F]440
Temperature, summer [deg. F]440

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MDG490021.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES MDG490021.

Inspections

EPA’s inspection file holds no inspection for NPDES MDG490021.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES MDG490021.

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Nearby on the register

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

What this page shows

This public-records page covers Clean Water Act discharge permit NPDES MDG490021 for DARCY S&G in Charlotte Hall, MD, held by CHENEY ENTERPRISES, LP, in the Trinity Church Run-Wicomico River watershed (HUC 020700110501). The permit is listed as administratively continued, with a Minor Discharger class 5, and the page shows 5 pollutants on file, 5 under a numeric limit, 0 with an effluent exceedance, and 5 with a violation of any kind.