Clean Water Act discharge permit · NPDES MO0124575
POET BIOREFINING - MACON, LLC, Macon, MO: NPDES MO0124575 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 13Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
POET BIOREFINING - MACON, LLC, held by POET Biorefining - Macon, LLC, holds NPDES permit MO0124575, which discharges to 8-20-13 Mudd V1.0. EPA’s file records it issued August 15, 2017 and expiring June 30, 2022. 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 | POET BIOREFINING - MACON, LLC |
|---|---|
| Permittee as filed | POET Biorefining - Macon, LLC |
| NPDES ID | MO0124575 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 15, 2017 |
| Expiration date | June 30, 2022 |
| Issuing agency | MODNR-Water Protection Program |
| Address | Macon, MO 63552 |
| Receiving water | 8-20-13 MUDD V1.0 |
| Subwatershed | Brush Creek-Middle Fork Salt River (HUC 071100060203) |
| Other EPA IDs (FRS) | RCRA handler MOR000531947; ICIS-AIR source MO0000002912100028 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 27Pollutants on file
- 13Under a numeric limit
- 27With 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 |
|---|---|---|---|---|---|
| pH | 2 | 22 | 11 | October 31, 2008 | |
| BOD, 5-day, 20 deg. C | 0 | 88 | 10 | March 31, 2006 | 508% over the limit |
| Chlorine, total residual | 2 | 12 | 10 | October 31, 2016 | 1,150% over the limit |
| Chlorides + Sulfates | 2 | 10 | 8 | November 30, 2017 | 102% over the limit |
| Solids, total suspended | 4 | 78 | 6 | December 31, 2020 | 79% over the limit |
| Oil and grease [soxhlet extr.] tot. | 2 | 14 | 6 | August 31, 2020 | 99,999% over the limit |
| Nitrogen, ammonia total [as N] | 0 | 8 | 4 | April 30, 2006 | 86% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 11 | 0 | ||
| Phosphorus, total [as P] | 0 | 5 | 0 | ||
| Nitrogen, total [as N] | 0 | 4 | 0 | ||
| Nitrogen, nitrate total [as N] | 0 | 3 | 0 | ||
| Rainfall | 0 | 3 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 2 | 0 | ||
| Oxygen demand, chem. [high level] [COD] | 2 | 2 | 0 | ||
| Chloride [as Cl] | 2 | 2 | 0 | ||
| Iron, total recoverable | 0 | 2 | 0 | ||
| Aluminum, total recoverable | 0 | 2 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 0 | 2 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 0 | 2 | 0 | ||
| Application rate area sprayed | 1 | 1 | 0 | ||
| Application rate, rate/area sprayed | 1 | 1 | 0 | ||
| Application rate, gallons spray irrigation | 1 | 1 | 0 | ||
| Spray irrigation | 1 | 1 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 1 | 0 | ||
| Sodium, total [as Na] | 0 | 1 | 0 | ||
| Sodium, % exchangeable soil, total | 0 | 1 | 0 | ||
| Freeboard | 0 | 1 | 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
- 5Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 22, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| December 22, 2023 | Effluent Violations - Numeric effluent violation | ST6 |
| March 22, 2019 | Effluent Violations - Numeric effluent violation | ST6 |
| March 14, 2019 | Permit Violations - Violation Specified in Comment | ST6 |
| March 14, 2019 | Effluent Violations - Numeric effluent violation | ST6 |
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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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.