Clean Water Act discharge permit · NPDES AL0050636
THORSBY HCR LAGOON, Thorsby, AL: NPDES AL0050636 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 14Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
THORSBY HCR LAGOON, held by Town of Thorsby, holds NPDES permit AL0050636. EPA’s file records it issued October 29, 2020 and expiring October 31, 2025. 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 | THORSBY HCR LAGOON |
|---|---|
| Permittee as filed | Town of Thorsby |
| NPDES ID | AL0050636 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | October 29, 2020 |
| Expiration date | October 31, 2025 |
| Address | Thorsby, AL 35171 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Yellow Leaf Creek (HUC 031501070801) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 18Pollutants on file
- 14Under a numeric limit
- 17With a violation of any kind
- 7With 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 |
|---|---|---|---|---|---|
| Solids, suspended percent removal | 1 | 39 | 8 | February 28, 2019 | 567% over the limit |
| BOD, 5-day, percent removal | 0 | 23 | 5 | January 31, 2009 | 183% over the limit |
| BOD, carb-5 day, 20 deg C, percent removal | 1 | 19 | 5 | February 28, 2023 | 361% over the limit |
| Flow rate | 0 | 17 | 3 | March 31, 2015 | 51% over the limit |
| E. coli | 4 | 10 | 2 | November 30, 2015 | 16% over the limit |
| Solids, total suspended | 8 | 213 | 1 | January 31, 2021 | 9% over the limit |
| Oxygen, dissolved [DO] | 1 | 35 | 1 | May 31, 2016 | 2% over the limit |
| Nitrogen, ammonia total [as N] | 4 | 128 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 4 | 114 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 8 | 108 | 0 | ||
| BOD, 5-day, 20 deg. C | 0 | 104 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 90 | 0 | ||
| pH | 2 | 64 | 0 | ||
| Coliform, fecal general | 0 | 58 | 0 | ||
| Nitrite + Nitrate total [as N] | 4 | 44 | 0 | ||
| Phosphorus, total [as P] | 4 | 44 | 0 | ||
| Chlorine, total residual | 2 | 18 | 0 | ||
| Flow rate | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES AL0050636.
Inspections
EPA’s inspection file holds no inspection for NPDES AL0050636.
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 AL0050636.
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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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 AL0050636 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.