Clean Water Act discharge permit · NPDES TXG114147
SAN MARCOS PLANT, San Marcos, TX: NPDES TXG114147 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 20Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
SAN MARCOS PLANT, held by Heldenfels Enterprises, LLC, holds NPDES permit TXG114147. EPA’s file records it issued June 8, 2026 and expiring November 6, 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 SAN MARCOS PLANT: its NPDES ID, its permit type and status, its dates, its address in San Marcos, Texas, and 20 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXG114147.
Identity
| Facility as filed | SAN MARCOS PLANT |
|---|---|
| Permittee as filed | Heldenfels Enterprises, LLC |
| NPDES ID | TXG114147 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | June 8, 2026 |
| Expiration date | November 6, 2026 |
| Address | San Marcos, TX 78666 |
| Subwatershed | Upper York Creek (HUC 121002030303) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 20Pollutants on file
- 20Under a numeric limit
- 0With 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 |
|---|---|---|---|---|---|
| pH | 8 | 0 | 0 | ||
| Solids, total suspended | 4 | 0 | 0 | ||
| Oil & Grease | 4 | 0 | 0 | ||
| Arsenic, total [as As] | 4 | 0 | 0 | ||
| Barium, total [as Ba] | 4 | 0 | 0 | ||
| Cadmium, total [as Cd] | 4 | 0 | 0 | ||
| Chromium, total [as Cr] | 4 | 0 | 0 | ||
| Copper, total [as Cu] | 4 | 0 | 0 | ||
| Lead, total [as Pb] | 4 | 0 | 0 | ||
| Manganese, total [as Mn] | 4 | 0 | 0 | ||
| Nickel, total [as Ni] | 4 | 0 | 0 | ||
| Silver, total [as Ag] | 4 | 0 | 0 | ||
| Zinc, total [as Zn] | 4 | 0 | 0 | ||
| Selenium, total [as Se] | 4 | 0 | 0 | ||
| Whole effluent toxicity - retest #1 | 4 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 4 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 0 | 0 | ||
| Mercury, total [as Hg] | 4 | 0 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute D. Pulex | 4 | 0 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Pimephales promelas | 4 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES TXG114147.
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 TXG114147.
Inspections
EPA’s inspection file holds no inspection for NPDES TXG114147.
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 TXG114147.
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
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, TXG114147.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 TXG114147 there.
Nearby on the register
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- Discharge permits in Texas
- Every permit record in Texas, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.