Clean Water Act discharge permit · NPDES ALG120331
GKN WESTLAND AEROSPACE, INC., Tallassee, AL: NPDES ALG120331 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 17Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
GKN WESTLAND AEROSPACE, INC., held by GKN Westland Aerospace, Inc., holds NPDES permit ALG120331. EPA’s file records it issued October 30, 2017 and expiring September 30, 2022. 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 | GKN WESTLAND AEROSPACE, INC. |
|---|---|
| Permittee as filed | GKN Westland Aerospace, Inc. |
| NPDES ID | ALG120331 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | October 30, 2017 |
| Expiration date | September 30, 2022 |
| Issuing agency | State |
| Address | Tallassee, AL 36078 |
| Subwatershed | Graveyard Creek-Mill Creek (HUC 031501100406) |
| NAICS | 336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing |
| SIC | 3728 – Aircraft Parts And Equipment |
| Other EPA IDs (FRS) | RCRA handler ALD980843999 |
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
- 19Pollutants on file
- 17Under a numeric limit
- 19With 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 | 4 | 8 | 0 | ||
| Rainfall | 2 | 5 | 0 | ||
| Solids, total suspended | 2 | 3 | 0 | ||
| Nitrogen, total [as N] | 2 | 3 | 0 | ||
| Carbon, tot organic [TOC] | 2 | 3 | 0 | ||
| Cyanide, total [as CN] | 2 | 3 | 0 | ||
| Arsenic, total recoverable | 2 | 3 | 0 | ||
| Nickel, total recoverable | 2 | 3 | 0 | ||
| Silver total recoverable | 2 | 3 | 0 | ||
| Zinc, total [as Zn] | 2 | 3 | 0 | ||
| Aluminum, total recoverable | 2 | 3 | 0 | ||
| Cadmium, total recoverable | 2 | 3 | 0 | ||
| Lead, total recoverable | 2 | 3 | 0 | ||
| Chromium, total recoverable | 2 | 3 | 0 | ||
| Copper, total recoverable | 2 | 3 | 0 | ||
| Mercury, total [as Hg] | 2 | 3 | 0 | ||
| Oil & Grease | 2 | 2 | 0 | ||
| Oil and grease | 0 | 1 | 0 | ||
| Annual Certification Statement | 0 | 1 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES ALG120331.
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 ALG120331.
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 ALG120331 there.
Nearby on the register
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- Every permit record in Alabama, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.