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Clean Water Act discharge permit · NPDES ALG110052

MMC MATERIALS GULF COAST- CANAL PLANT, Mobile, AL: NPDES ALG110052 discharge permit, effluent exceedances, inspections, penalties

MMC MATERIALS GULF COAST- CANAL PLANT, held by Bayou Concrete LLC, holds NPDES permit ALG110052. EPA’s file records it issued September 1, 2022 and expiring August 31, 2027.

MMC MATERIALS GULF COAST- CANAL PLANT, Mobile, Alabama: Coverage under a general permit ALG110052, held by Bayou Concrete LLC; Industrial stormwater; Effective; issued September 1, 2022, term to August 31, 2027, by State; Ready-Mix Concrete Manufacturing.

  • Solids, total suspended: 6 limits, 12 violations of any kind, 6 effluent exceedances, latest April 30, 2009, largest 270% over the limit.
  • Phosphorus, total [as P]: 4 limits, 2 violations of any kind, 2 effluent exceedances, latest January 31, 2009, largest 146% over the limit.
  • pH: 12 limits, 12 violations of any kind, 0 effluent exceedances.
  • Flow, in conduit or thru treatment plant: 4 limits, 7 violations of any kind, 0 effluent exceedances.
  • Annual Certification Statement: 1 limit, 1 violation of any kind, 0 effluent exceedances.
  • Oil and grease: 0 limits, 1 violation of any kind, 0 effluent exceedances.
  • Oil & Grease: 4 limits, 0 violations of any kind, 0 effluent exceedances.
  • Rainfall: 2 limits, 0 violations of any kind, 0 effluent exceedances.

Alabama holds 2,504 Industrial stormwater coverages of this permit type in EPA’s file; 2,073 were issued before ALG110052. Bayou Concrete LLC holds 10 permits in Alabama.

Other permits held by Bayou Concrete LLC

Coverages issued nearest ALG110052

MMC MATERIALS GULF COAST- CANAL PLANT among its neighbors

EPA’s permit file holds 99 discharge permits in the Toulmins Spring Branch-Three Mile Creek subwatershed (HUC 031602040504), ALG110052 among them. Its county holds 1,120, 18 of them major permits; ALG110052 is a minor permit.

Other permits in the Toulmins Spring Branch-Three Mile Creek subwatershed (HUC 031602040504)

Identity

Facility as filedMMC MATERIALS GULF COAST- CANAL PLANT
Permittee as filedBayou Concrete LLC
NPDES IDALG110052
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedSeptember 1, 2022
Expiration dateAugust 31, 2027
Issuing agencyState
AddressMobile, AL 36603
SubwatershedToulmins Spring Branch-Three Mile Creek (HUC 031602040504)
NAICS327320 – Ready-Mix Concrete Manufacturing
SIC3271 – Concrete Block And Brick

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 suspended6126April 30, 2009270% over the limit
Phosphorus, total [as P]422January 31, 2009146% over the limit
pH12120
Flow, in conduit or thru treatment plant470
Annual Certification Statement110
Oil and grease010
Oil & Grease400
Rainfall200

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES ALG110052.

Inspections

EPA’s inspection file holds no inspection for NPDES ALG110052.

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 ALG110052.

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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 Clean Water Act NPDES permit ALG110052 for MMC MATERIALS GULF COAST- CANAL PLANT in Mobile, AL, held by Bayou Concrete LLC, with a status of Effective and a Minor discharger class. The figures listed are 7 pollutants under a numeric limit, 2 pollutants with an effluent exceedance, and 8 pollutants on file.