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

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.

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.

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, AL0050636.

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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 AL0050636 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.