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Clean Water Act discharge permit · NPDES LAR10Q220

DOW HYDROCARBONS & RESOURCES LLC - PSSB AND SSB1 BASIN CLOSURE, Hahnville, LA: NPDES LAR10Q220 discharge permit, effluent exceedances, inspections, penalties

DOW HYDROCARBONS & RESOURCES LLC - PSSB AND SSB1 BASIN CLOSURE holds NPDES permit LAR10Q220. EPA’s file records it issued March 12, 2025 and expiring December 5, 2026.

DOW HYDROCARBONS & RESOURCES LLC - PSSB AND SSB1 BASIN CLOSURE, Hahnville, Louisiana: Coverage under a general permit LAR10Q220; Construction stormwater; Effective; issued March 12, 2025, term to December 5, 2026.

Louisiana holds 1,491 Construction stormwater coverages of this permit type in EPA’s file; 810 were issued before LAR10Q220.

Coverages issued nearest LAR10Q220

DOW HYDROCARBONS & RESOURCES LLC - PSSB AND SSB1 BASIN CLOSURE among its neighbors

EPA’s permit file holds 7 discharge permits in the Bayou Fortier subwatershed (HUC 080903010206), LAR10Q220 among them. Its county holds 70, 15 of them major permits; LAR10Q220 is a minor permit.

Other permits in the Bayou Fortier subwatershed (HUC 080903010206)

What the register holds for DOW HYDROCARBONS & RESOURCES LLC - PSSB AND SSB1 BASIN CLOSURE: its NPDES ID, its permit type and status, its dates, its address in Hahnville, Louisiana. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES LAR10Q220.

Identity

Facility as filedDOW HYDROCARBONS & RESOURCES LLC - PSSB AND SSB1 BASIN CLOSURE
Permittee as filedDOW HYDROCARBONS & RESOURCES LLC - PSSB AND SSB1 BASIN CLOSURE
NPDES IDLAR10Q220
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedMarch 12, 2025
Expiration dateDecember 5, 2026
AddressHahnville, LA 70057
Receiving water impaired303(D) Listed
SubwatershedBayou Fortier (HUC 080903010206)
Other EPA IDs (FRS)RCRA handler LAD041581422; ICIS-AIR source LA0000002208900001

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES LAR10Q220.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES LAR10Q220.

Inspections

EPA’s inspection file holds no inspection for NPDES LAR10Q220.

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 LAR10Q220.

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, LAR10Q220.

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Nearby on the register

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

What this page shows

The DOW HYDROCARBONS & RESOURCES LLC - PSSB AND SSB1 BASIN CLOSURE permit is one of 17 storm water construction permits on EPA's NPDES register in St. Charles Parish, and 52.9% of those 17 were issued before it. Among the 17 St. Charles Parish storm water construction permits, 0.0% have a violation on file, and this permit is one of 7 NPDES permits in the Bayou Fortier subwatershed.