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Clean Water Act discharge permit · NPDES LAR05Q386

ONSITE CONCRETE SOLUTIONS, LLC: ONSITE: LOUISIANA LNG, Carlyss, LA: NPDES LAR05Q386 discharge permit, effluent exceedances, inspections, penalties

ONSITE CONCRETE SOLUTIONS, LLC: ONSITE: LOUISIANA LNG holds NPDES permit LAR05Q386. EPA’s file records it issued December 4, 2025 and expiring October 26, 2026.

ONSITE CONCRETE SOLUTIONS, LLC: ONSITE: LOUISIANA LNG, Carlyss, Louisiana: Coverage under a general permit LAR05Q386; Industrial stormwater; Effective; issued December 4, 2025, term to October 26, 2026.

Louisiana holds 216 Industrial stormwater coverages of this permit type in EPA’s file; 199 were issued before LAR05Q386.

Coverages issued nearest LAR05Q386

ONSITE CONCRETE SOLUTIONS, LLC: ONSITE: LOUISIANA LNG among its neighbors

Its county holds 299, 28 of them major permits; LAR05Q386 is a minor permit.

Other permits in the county

What the register holds for ONSITE CONCRETE SOLUTIONS, LLC: ONSITE: LOUISIANA LNG: its NPDES ID, its permit type and status, its dates, its address in Carlyss, Louisiana. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES LAR05Q386.

Identity

Facility as filedONSITE CONCRETE SOLUTIONS, LLC: ONSITE: LOUISIANA LNG
Permittee as filedONSITE CONCRETE SOLUTIONS, LLC: ONSITE: LOUISIANA LNG
NPDES IDLAR05Q386
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedDecember 4, 2025
Expiration dateOctober 26, 2026
AddressCarlyss, LA 70000

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES LAR05Q386.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES LAR05Q386.

Inspections

EPA’s inspection file holds no inspection for NPDES LAR05Q386.

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 LAR05Q386.

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, LAR05Q386.

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  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
  • The whole register — $18,000/year

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Nearby on the register

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

What this page shows

ONSITE CONCRETE SOLUTIONS, LLC: ONSITE: LOUISIANA LNG holds one of 12 storm water industrial permits on EPA's NPDES register in Calcasieu Parish. Of those 12 permits, 16.7% have a violation on file, and this permit has none of the numeric-limit or effluent-exceedance records that the register tracks. Among all 12 permits in the parish, 83.3% carry an earlier issue date than this one, which was issued December 4, 2025.