Clean Water Act discharge permit · NPDES AL0000817
WESTROCK COMPANY - MAHRT MILL, Cottonton, AL: NPDES AL0000817 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 14Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
- 2Inspections on file
- 0Formal enforcement actions
WESTROCK COMPANY - MAHRT MILL, held by WestRock Coated Board, LLC, holds NPDES permit AL0000817. EPA’s file records it issued April 28, 2015 and expiring April 30, 2020. 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 | WESTROCK COMPANY - MAHRT MILL |
|---|---|
| Permittee as filed | WestRock Coated Board, LLC |
| NPDES ID | AL0000817 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | April 28, 2015 |
| Expiration date | April 30, 2020 |
| Address | Cottonton, AL 36851 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Snake Creek-Chattahoochee River (HUC 031300030606) |
| Other EPA IDs (FRS) | RCRA handler ALD983186206; ICIS-AIR source AL0000000111300004 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 15Pollutants on file
- 14Under a numeric limit
- 8With a violation of any kind
- 3With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 11 | 3 | 3 | April 30, 2017 | 2,147,483,650% over the limit |
| Oil and grease | 0 | 3 | 3 | December 31, 2004 | 120% over the limit |
| Solids, total suspended | 7 | 2 | 2 | January 31, 2005 | 139% over the limit |
| Nitrogen, ammonia total [as N] | 1 | 2 | 0 | ||
| Phosphorus, total [as P] | 1 | 1 | 0 | ||
| Pentachlorophenol | 1 | 1 | 0 | ||
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | 1 | 1 | 0 | ||
| Trichlorophenol | 1 | 1 | 0 | ||
| pH | 18 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 9 | 0 | 0 | ||
| Oil & Grease | 5 | 0 | 0 | ||
| Temperature, water deg. fahrenheit | 1 | 0 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 1 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 0 | 0 | ||
| Toxicity [chronic], Ceriodaphnia dubia | 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 AL0000817.
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| July 31, 2026 | Evaluation | S |
| February 23, 2026 | Biomonitoring | S |
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 AL0000817.
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 AL0000817 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.