Clean Water Act discharge permit · NPDES TX0068021
OAK GROVE STEAM ELECTRIC STATION, Franklin, TX: NPDES TX0068021 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 26Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
- 1Inspections on file
- 0Formal enforcement actions
OAK GROVE STEAM ELECTRIC STATION, held by OAK GROVE MANAGEMENT COMPANY L, holds NPDES permit TX0068021, which discharges to Twin Oak Reservior Duck Creek. EPA’s file records it issued October 19, 2010 and expiring May 1, 2014.
OAK GROVE STEAM ELECTRIC STATION, Franklin, Texas: Individual permit TX0068021, held by OAK GROVE MANAGEMENT COMPANY L; Administratively continued (past its expiration date and still in force until reissued); issued October 19, 2010, term to May 1, 2014; discharges to TWIN OAK RESERVIOR DUCK CREEK.
- Chlorine, free available: 4 limits, 82 violations of any kind, 0 effluent exceedances.
- Chlorine, total residual: 3 limits, 43 violations of any kind, 0 effluent exceedances.
- Flow, in conduit or thru treatment plant: 12 limits, 42 violations of any kind, 0 effluent exceedances.
- Temperature, water deg. fahrenheit: 2 limits, 40 violations of any kind, 0 effluent exceedances.
- Oil & Grease: 6 limits, 8 violations of any kind, 0 effluent exceedances.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas: 4 limits, 4 violations of any kind, 0 effluent exceedances.
- NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas: 4 limits, 4 violations of any kind, 0 effluent exceedances.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas: 4 limits, 4 violations of any kind, 0 effluent exceedances.
- Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas: 4 limits, 4 violations of any kind, 0 effluent exceedances.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas: 4 limits, 4 violations of any kind, 0 effluent exceedances.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas: 4 limits, 4 violations of any kind, 0 effluent exceedances.
- pH: 8 limits, 0 violations of any kind, 0 effluent exceedances.
- Solids, total suspended: 8 limits, 0 violations of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #1: 7 limits, 0 violations of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #2: 7 limits, 0 violations of any kind, 0 effluent exceedances.
- Copper, total [as Cu]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- BOD, 5-day, 20 deg. C: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Iron, total [as Fe]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- LC50 Pass/Fail Static 24Hr Acute D. Pulex: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- LC50 Pass/Fail Static 24Hr Acute Pimephales promelas: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- October 13, 2026: Evaluation (S).
- July 1, 2025: Permit Violations - Violation Specified in Comment (ST6).
OAK GROVE STEAM ELECTRIC STATION among its neighbors
EPA’s permit file holds 2 discharge permits in the Upper Duck Creek subwatershed (HUC 120701030403), TX0068021 among them. Its county holds 40, 3 of them major permits; TX0068021 is a minor permit.
Other permits in the Upper Duck Creek subwatershed (HUC 120701030403)
- USG STORAGE SITE, Bremond: TXR05GW40, minor permit, permit term to August 13, 2026
Identity
| Facility as filed | OAK GROVE STEAM ELECTRIC STATION |
|---|---|
| Permittee as filed | OAK GROVE MANAGEMENT COMPANY L |
| NPDES ID | TX0068021 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | October 19, 2010 |
| Expiration date | May 1, 2014 |
| Address | Franklin, TX 77856 |
| Receiving water | TWIN OAK RESERVIOR DUCK CREEK |
| Subwatershed | Upper Duck Creek (HUC 120701030403) |
| Other EPA IDs (FRS) | RCRA handler TXD000728956; ICIS-AIR source TX0000004839500008 |
Effluent limits and exceedances
- 26Pollutants on file
- 26Under a numeric limit
- 11With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| Chlorine, free available | 4 | 82 | 0 | ||
| Chlorine, total residual | 3 | 43 | 0 | ||
| Flow, in conduit or thru treatment plant | 12 | 42 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 40 | 0 | ||
| Oil & Grease | 6 | 8 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 4 | 4 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 4 | 4 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 4 | 4 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | 4 | 4 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | 4 | 4 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | 4 | 4 | 0 | ||
| pH | 8 | 0 | 0 | ||
| Solids, total suspended | 8 | 0 | 0 | ||
| Whole effluent toxicity - retest #1 | 7 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 7 | 0 | 0 | ||
| Copper, total [as Cu] | 4 | 0 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| BOD, 5-day, 20 deg. C | 2 | 0 | 0 | ||
| Iron, total [as Fe] | 2 | 0 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute D. Pulex | 1 | 0 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Pimephales promelas | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES TX0068021.
Inspections, violations and enforcement
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 1, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| October 13, 2026 | Evaluation | S |
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 TX0068021.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.