Clean Water Act discharge permit · NPDES AL0057428
CHASE AREA WWTP, Huntsville, AL: NPDES AL0057428 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 17Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
CHASE AREA WWTP, held by City Of Huntsville, holds NPDES permit AL0057428. EPA’s file records it issued July 29, 2016 and expiring July 31, 2021. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | CHASE AREA WWTP |
|---|---|
| Permittee as filed | City Of Huntsville |
| NPDES ID | AL0057428 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | July 29, 2016 |
| Expiration date | July 31, 2021 |
| Address | Huntsville, AL 35811 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Acuff Spring-Flint River (HUC 060300020403) |
| Program components on file | POTW, Pretreatment |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
| Other EPA IDs (FRS) | RCRA handler ALR000029439 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 20Pollutants on file
- 17Under a numeric limit
- 19With a violation of any kind
- 5With 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 |
|---|---|---|---|---|---|
| Coliform, fecal general | 0 | 9 | 6 | June 30, 2007 | 200% over the limit |
| E. coli | 5 | 8 | 6 | May 31, 2026 | 423% over the limit |
| Toxicity [chronic], Ceriodaphnia dubia | 1 | 3 | 2 | October 31, 2014 | 2,147,483,650% over the limit |
| Oxygen, dissolved [DO] | 1 | 3 | 1 | January 31, 2005 | 8% over the limit |
| Solids, suspended percent removal | 1 | 3 | 1 | February 28, 2019 | 12% over the limit |
| Solids, total suspended | 9 | 18 | 0 | ||
| Nitrogen, ammonia total [as N] | 9 | 10 | 0 | ||
| BOD, 5-day, 20 deg. C | 0 | 10 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 13 | 8 | 0 | ||
| Phosphorus, total [as P] | 5 | 8 | 0 | ||
| Flow, in conduit or thru treatment plant | 3 | 6 | 0 | ||
| pH | 4 | 5 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 5 | 4 | 0 | ||
| Nitrite + Nitrate total [as N] | 5 | 4 | 0 | ||
| Chlorine, total residual | 2 | 3 | 0 | ||
| Zinc, total recoverable | 2 | 2 | 0 | ||
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | 1 | 1 | 0 | ||
| BOD, carb-5 day, 20 deg C, percent removal | 1 | 1 | 0 | ||
| BOD, 5-day, percent removal | 0 | 1 | 0 | ||
| Oil & Grease | 1 | 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 AL0057428.
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.
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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 AL0057428 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.