Clean Water Act discharge permit · NPDES LAG420177
CORNERSTONE CHEMICAL COMPANY LLC - CORNERSTONE CHEMICAL COMPANY, ENERGY PARK, Waggaman, LA: NPDES LAG420177 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
CORNERSTONE CHEMICAL COMPANY LLC - CORNERSTONE CHEMICAL COMPANY, ENERGY PARK holds NPDES permit LAG420177. EPA’s file records it issued March 2, 2026 and expiring September 1, 2026. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
What the register holds for CORNERSTONE CHEMICAL COMPANY LLC - CORNERSTONE CHEMICAL COMPANY, ENERGY PARK: its NPDES ID, its permit type and status, its dates, its address in Waggaman, Louisiana. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES LAG420177.
Identity
| Facility as filed | CORNERSTONE CHEMICAL COMPANY LLC - CORNERSTONE CHEMICAL COMPANY, ENERGY PARK |
|---|---|
| Permittee as filed | CORNERSTONE CHEMICAL COMPANY LLC - CORNERSTONE CHEMICAL COMPANY, ENERGY PARK |
| NPDES ID | LAG420177 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | March 2, 2026 |
| Expiration date | September 1, 2026 |
| Address | Waggaman, LA 70094 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Westwego-Main Canal (HUC 080903010307) |
| Other EPA IDs (FRS) | RCRA handler LAD008175390; ICIS-AIR source LA0000002205100314 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES LAG420177.
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES LAG420177.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
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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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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID LAG420177 there.
Nearby on the register
- Discharge permits in Waggaman
- Every permit record in Waggaman, A to Z
- Discharge permits in Louisiana
- Every permit record in Louisiana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.