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Clean Water Act discharge permit · NPDES VAG110103

TITAN VIRGINIA READY MIX LLC - STERLING, Sterling, VA: NPDES VAG110103 discharge permit, effluent exceedances, inspections, penalties

TITAN VIRGINIA READY MIX LLC - STERLING, held by Titan America Limited Liability Company, holds NPDES permit VAG110103, which discharges to Horsepen Run. EPA’s file records it issued December 28, 2018 and expiring December 31, 2023.

TITAN VIRGINIA READY MIX LLC - STERLING, Sterling, Virginia: Coverage under a general permit VAG110103, held by Titan America Limited Liability Company; Administratively continued (past its expiration date and still in force until reissued); issued December 28, 2018, term to December 31, 2023, by Virginia; discharges to Horsepen Run; Ready-Mix Concrete Manufacturing.

  • Solids, total suspended: 5 limits, 4 violations of any kind, 4 effluent exceedances, latest June 30, 2026, largest 141% over the limit.
  • pH: 6 limits, 0 violations of any kind, 0 effluent exceedances.
  • Flow, in conduit or thru treatment plant: 4 limits, 0 violations of any kind, 0 effluent exceedances.
  • Precipitation volume: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • September 11, 2026: Letter of Violation/ Warning Letter (State).
  • August 28, 2026: Evaluation (S).

Other permits held by Titan America Limited Liability Company

TITAN VIRGINIA READY MIX LLC - STERLING among its neighbors

EPA’s permit file holds 62 discharge permits in the Horsepen Run subwatershed (HUC 020700080902), VAG110103 among them. Its county holds 64, 2 of them major permits; VAG110103 is a minor permit.

Other permits in the Horsepen Run subwatershed (HUC 020700080902)

Identity

Facility as filedTITAN VIRGINIA READY MIX LLC - STERLING
Permittee as filedTitan America Limited Liability Company
NPDES IDVAG110103
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
IssuedDecember 28, 2018
Expiration dateDecember 31, 2023
Issuing agencyVirginia
AddressSterling, VA 20166
Receiving waterHorsepen Run
Receiving water impaired303(D) Listed
SubwatershedHorsepen Run (HUC 020700080902)
NAICS327320 – Ready-Mix Concrete Manufacturing
SIC3273 – Ready-Mixed Concrete
Other EPA IDs (FRS)RCRA handler VAD097779797; ICIS-AIR source VA0000005110700080

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
Solids, total suspended544June 30, 2026141% over the limit
pH600
Flow, in conduit or thru treatment plant400
Precipitation volume100

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES VAG110103.

Inspections

DateWhat EPA recordedAgency
August 28, 2026EvaluationS

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

DateWhat EPA recordedAgency
September 11, 2026Letter of Violation/ Warning LetterState

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Nearby on the register

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

What this page shows

This public-records page covers NPDES permit VAG110103, held by Titan America Limited Liability Company for TITAN VIRGINIA READY MIX LLC - STERLING in Sterling, VA, which discharges to Horsepen Run within subwatershed HUC 020700080902. The listed figures are 4 for discharger class, 1 pollutant under a numeric limit, and 1 pollutant with an effluent exceedance.