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Clean Water Act discharge permit · NPDES LAR05Q400

MAPLEWOOD INDUSTRIAL SERVICES, LLC - SULPHUR WAREHOUSE, Sulphur, LA: NPDES LAR05Q400 discharge permit, effluent exceedances, inspections, penalties

MAPLEWOOD INDUSTRIAL SERVICES, LLC - SULPHUR WAREHOUSE holds NPDES permit LAR05Q400. EPA’s file records it issued June 10, 2026 and expiring October 26, 2026.

MAPLEWOOD INDUSTRIAL SERVICES, LLC - SULPHUR WAREHOUSE, Sulphur, Louisiana: Coverage under a general permit LAR05Q400; Industrial stormwater; Effective; issued June 10, 2026, term to October 26, 2026.

Louisiana holds 216 Industrial stormwater coverages of this permit type in EPA’s file; 211 were issued before LAR05Q400.

Coverages issued nearest LAR05Q400

MAPLEWOOD INDUSTRIAL SERVICES, LLC - SULPHUR WAREHOUSE among its neighbors

EPA’s permit file holds 29 discharge permits in the Maple Fork-Bayou D'Inde subwatershed (HUC 080802060301), LAR05Q400 among them. Its county holds 299, 28 of them major permits; LAR05Q400 is a minor permit.

Other permits in the Maple Fork-Bayou D'Inde subwatershed (HUC 080802060301)

What the register holds for MAPLEWOOD INDUSTRIAL SERVICES, LLC - SULPHUR WAREHOUSE: its NPDES ID, its permit type and status, its dates, its address in Sulphur, Louisiana. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES LAR05Q400.

Identity

Facility as filedMAPLEWOOD INDUSTRIAL SERVICES, LLC - SULPHUR WAREHOUSE
Permittee as filedMAPLEWOOD INDUSTRIAL SERVICES, LLC - SULPHUR WAREHOUSE
NPDES IDLAR05Q400
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedJune 10, 2026
Expiration dateOctober 26, 2026
AddressSulphur, LA 70663
Receiving water impaired303(D) Listed
SubwatershedMaple Fork-Bayou D'Inde (HUC 080802060301)
Other EPA IDs (FRS)RCRA handler LAR000077578

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES LAR05Q400.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES LAR05Q400.

Inspections

EPA’s inspection file holds no inspection for NPDES LAR05Q400.

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 LAR05Q400.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, LAR05Q400.

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Nearby on the register

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

What this page shows

The MAPLEWOOD INDUSTRIAL SERVICES, LLC - SULPHUR WAREHOUSE permit is one of 12 storm water industrial permits in Calcasieu Parish, this one included, and 91.7% of those 12 carry an earlier issue date than this permit. The permit sits among 29 NPDES permits in the Maple Fork-Bayou D'Inde subwatershed, this one included, and 16.7% of the 12 Calcasieu Parish storm water industrial permits have a violation on file. This permit has no pollutants under a numeric limit and no pollutants with an effluent exceedance, both counted as 0.