Clean Water Act discharge permit · NPDES IA0081558
POET BIOREFINING - ARTHUR, LLC, Arthur, IA: NPDES IA0081558 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
POET BIOREFINING - ARTHUR, LLC holds NPDES permit IA0081558. EPA’s file records it issued March 1, 2019 and expiring February 29, 2024.
POET BIOREFINING - ARTHUR, LLC, Arthur, Iowa: Individual permit IA0081558; Administratively continued (past its expiration date and still in force until reissued); issued March 1, 2019, term to February 29, 2024, by STA; Ethyl Alcohol Manufacturing.
- Solids, total suspended: 4 limits, 13 violations of any kind, 1 effluent exceedance, latest April 30, 2023, largest 20% over the limit.
- Iron, total [as Fe]: 9 limits, 12 violations of any kind, 0 effluent exceedances.
- pH: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- Sulfate, total [as SO4]: 9 limits, 6 violations of any kind, 0 effluent exceedances.
- Report due [yrmoda]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
POET BIOREFINING - ARTHUR, LLC among its neighbors
EPA’s permit file holds 1 discharge permits in the Buffalo Creek-Maple River subwatershed (HUC 102300050207), IA0081558 among them. Its county holds 12, 0 of them major permits; IA0081558 is a minor permit.
Identity
| Facility as filed | POET BIOREFINING - ARTHUR, LLC |
|---|---|
| Permittee as filed | POET BIOREFINING - ARTHUR, LLC |
| NPDES ID | IA0081558 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | March 1, 2019 |
| Expiration date | February 29, 2024 |
| Issuing agency | STA |
| Address | Arthur, IA 51431 |
| Subwatershed | Buffalo Creek-Maple River (HUC 102300050207) |
| NAICS | 325193 – Ethyl Alcohol Manufacturing |
| SIC | 2869 – Industrial Organic Chemicals |
| Other EPA IDs (FRS) | RCRA handler IAR000510016; ICIS-AIR source IA0000001909300031 |
Effluent limits and exceedances
- 5Pollutants on file
- 5Under a numeric limit
- 4With a violation of any kind
- 1With 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, total suspended | 4 | 13 | 1 | April 30, 2023 | 20% over the limit |
| Iron, total [as Fe] | 9 | 12 | 0 | ||
| pH | 4 | 8 | 0 | ||
| Sulfate, total [as SO4] | 9 | 6 | 0 | ||
| Report due [yrmoda] | 2 | 0 | 0 |
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES IA0081558.
Inspections
EPA’s inspection file holds no inspection for NPDES IA0081558.
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 IA0081558.
Watch this permit
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.