Clean Water Act discharge permit · NPDES FL0040274
CHEMOURS - MAXVILLE MINE, Maxville, FL: NPDES FL0040274 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 12Pollutants under a numeric limit
- 13Pollutants with an effluent exceedance
CHEMOURS - MAXVILLE MINE, held by The Chemours Company FC LLC, holds NPDES permit FL0040274, which discharges to Gum Branch, New R, North Fork Black Cr. EPA’s file records it issued March 14, 2017 and expiring March 13, 2022. 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 - MAXVILLE MINE |
|---|---|
| Permittee as filed | The Chemours Company FC LLC |
| NPDES ID | FL0040274 |
| 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 | March 14, 2017 |
| Expiration date | March 13, 2022 |
| Issuing agency | Florida Department of Environmental Protection |
| Address | Maxville, FL 32234 |
| Receiving water | Gum Branch, New R, North Fork Black Cr |
| Subwatershed | Upper North Fork of Black Creek (HUC 030801031002) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 16Pollutants on file
- 12Under a numeric limit
- 14With a violation of any kind
- 13With 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 |
|---|---|---|---|---|---|
| Iron, total recoverable | 3 | 18 | 18 | May 31, 2009 | 1,784% over the limit |
| pH | 14 | 18 | 15 | September 30, 2017 | |
| Solids, total suspended | 6 | 14 | 14 | May 31, 2009 | 25,995% over the limit |
| Radium 226 + radium 228, total | 3 | 15 | 11 | June 30, 2014 | 84% over the limit |
| Turbidity, lab, NTU | 0 | 9 | 9 | January 31, 2011 | |
| IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | 3 | 16 | 7 | March 31, 2022 | 58% over the limit |
| LC50 Static Renewal 96Hr Acute Ceriodaphnia dubia | 9 | 27 | 6 | December 31, 2016 | 99,999% over the limit |
| Flow, in conduit or thru treatment plant | 9 | 7 | 5 | September 30, 2017 | 107% over the limit |
| IC25 Static Renewal 7 Day Chronic Chrpimephales | 3 | 12 | 3 | January 31, 2015 | 62% over the limit |
| NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia | 0 | 3 | 3 | November 30, 2004 | 99,999% over the limit |
| LC50 Static Renewal 96Hr Acute Cyprinella leedsi | 9 | 30 | 1 | January 31, 2015 | 32% over the limit |
| Length of longest pH excursion | 0 | 1 | 1 | September 30, 2004 | 4,800% over the limit |
| % of time exceeding pH limits | 0 | 1 | 1 | September 30, 2004 | 730% over the limit |
| Alpha, gross particle activity | 3 | 2 | 0 | ||
| Turbidity | 8 | 0 | 0 | ||
| Mercury, total recoverable | 3 | 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 |
|---|---|---|
| March 12, 2025 | Effluent Violations - Industrial Spill | ST6 |
| September 14, 2024 | Effluent Violations - Industrial Spill | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.