Clean Water Act discharge permit · NPDES MS0027294
CHEMOURS CO FC LLC, THE DELISLE PLANT, Pass Christian, MS: NPDES MS0027294 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 16Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
CHEMOURS CO FC LLC, THE DELISLE PLANT, held by CHEMOURS COMPANY FC LLC, THE DELISLE PLANT, holds NPDES permit MS0027294, which discharges to St Louis Bay. EPA’s file records it issued November 5, 2008 and expiring October 31, 2013. 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.
Identity
| Facility as filed | CHEMOURS CO FC LLC, THE DELISLE PLANT |
|---|---|
| Permittee as filed | CHEMOURS COMPANY FC LLC, THE DELISLE PLANT |
| NPDES ID | MS0027294 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | November 5, 2008 |
| Expiration date | October 31, 2013 |
| Address | Pass Christian, MS 39571 |
| Receiving water | ST LOUIS BAY |
| Subwatershed | Saint Louis Bay (HUC 031700091306) |
| Other EPA IDs (FRS) | RCRA handler MSD096046792; ICIS-AIR source MS0000002804700115 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 20Pollutants on file
- 16Under a numeric limit
- 14With a violation of any kind
- 5With an effluent exceedance
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 measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Coliform, fecal general | 0 | 31 | 27 | December 31, 2005 | 89,900% over the limit |
| Solids, total suspended | 8 | 33 | 7 | April 30, 2010 | 449% over the limit |
| BOD, 5-day, 20 deg. C | 0 | 7 | 3 | December 31, 2005 | 113% over the limit |
| pH | 6 | 23 | 1 | February 28, 2005 | |
| Temperature, summer [deg. F] | 2 | 3 | 1 | June 30, 2024 | 0% over the limit |
| Chromium, total recoverable | 4 | 12 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 12 | 0 | ||
| Nickel, total [as Ni] | 0 | 8 | 0 | ||
| Chlorine, total residual | 0 | 8 | 0 | ||
| Nickel, total recoverable | 4 | 4 | 0 | ||
| Tide stage | 1 | 3 | 0 | ||
| pH range excursions, > 60 minutes | 1 | 3 | 0 | ||
| pH range excursions, monthly total accum | 1 | 3 | 0 | ||
| Temperature, water deg. fahrenheit | 6 | 2 | 0 | ||
| Chromium, total [as Cr] | 4 | 0 | 0 | ||
| Iron, total [as Fe] | 4 | 0 | 0 | ||
| Lead, total [as Pb] | 4 | 0 | 0 | ||
| Vanadium, total [as V] | 4 | 0 | 0 | ||
| Titanium, total [as Ti] | 4 | 0 | 0 | ||
| Temperature, winter [deg. F] | 2 | 0 | 0 |
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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 29, 2026 | WW SSO - Discharge without a valid permit (includes satellite systems) | ST6 |
| February 1, 2025 | Effluent Violations - Unauthorized Discharge | ST6 |
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.
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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 MS0027294 there.
Nearby on the register
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- Every permit record in Pass Christian, A to Z
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- Every permit record in Mississippi, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.