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Clean Water Act discharge permit · NPDES GAG300035

MARTIN MARIETTA MATERIALS, INC. (JUNCTION CITY QUARRY), Junction City, GA: NPDES GAG300035 discharge permit, effluent exceedances, inspections, penalties

MARTIN MARIETTA MATERIALS, INC. (JUNCTION CITY QUARRY), held by Martin Marietta Materials, Inc., holds NPDES permit GAG300035. EPA’s file records it issued August 1, 2016 and expiring July 31, 2021.

MARTIN MARIETTA MATERIALS, INC. (JUNCTION CITY QUARRY), Junction City, Georgia: Coverage under a general permit GAG300035, held by Martin Marietta Materials, Inc.; Administratively continued (past its expiration date and still in force until reissued); issued August 1, 2016, term to July 31, 2021.

  • Oil & Grease: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Turbidity: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • pH: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • Solids, total suspended: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • Rainfall: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • Flow, in conduit or thru treatment plant: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • February 10, 2026: Notice of Noncompliance Issued (State).
  • February 6, 2026: Management Practice Violations - Improper Operation and Maintenance (ST6).
  • February 6, 2026: Evaluation (S).

Other permits held by Martin Marietta Materials, Inc.

MARTIN MARIETTA MATERIALS, INC. (JUNCTION CITY QUARRY) among its neighbors

EPA’s permit file holds 229 discharge permits in the Cole Creek-Tobesofkee Creek subwatershed (HUC 030701031401), GAG300035 among them.

Other permits in the Cole Creek-Tobesofkee Creek subwatershed (HUC 030701031401)

Identity

Facility as filedMARTIN MARIETTA MATERIALS, INC. (JUNCTION CITY QUARRY)
Permittee as filedMartin Marietta Materials, Inc.
NPDES IDGAG300035
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
IssuedAugust 1, 2016
Expiration dateJuly 31, 2021
AddressJunction City, GA 31812
SubwatershedCole Creek-Tobesofkee Creek (HUC 030701031401)

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
Oil & Grease240
Turbidity200
pH200
Solids, total suspended200
Rainfall200
Flow, in conduit or thru treatment plant200

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES GAG300035.

Inspections, violations and enforcement

DateWhat EPA recordedAgency
February 6, 2026Management Practice Violations - Improper Operation and MaintenanceST6

Inspections

DateWhat EPA recordedAgency
February 6, 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
February 10, 2026Notice of Noncompliance IssuedState

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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 NPDES permit GAG300035, held by Martin Marietta Materials, Inc. for its Junction City Quarry in Junction City, GA, with the permit listed as administratively continued and a minor discharger class. EPA's file lists 6 pollutants on file, 0 under a numeric limit, and 0 with an effluent exceedance, within subwatershed HUC 030701031401.