Clean Water Act discharge permit · NPDES SD0028240
POET BIOREFINING - MITCHELL, Mitchell, SD: NPDES SD0028240 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 25Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
POET BIOREFINING - MITCHELL, held by POET Biorefining - Mitchell, holds NPDES permit SD0028240, which discharges to Dry Run Creek. EPA’s file records it issued October 19, 2006 and expiring September 30, 2011. 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 - MITCHELL |
|---|---|
| Permittee as filed | POET Biorefining - Mitchell |
| NPDES ID | SD0028240 |
| 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 | October 19, 2006 |
| Expiration date | September 30, 2011 |
| Issuing agency | SDDENR |
| Address | Mitchell, SD 57301 |
| Receiving water | Dry Run Creek |
| Subwatershed | Town of Loomis-Dry Run (HUC 101600110404) |
| Other EPA IDs (FRS) | RCRA handler SDR000212639; ICIS-AIR source SD0000004603500010 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 25Pollutants on file
- 25Under a numeric limit
- 7With 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 |
|---|---|---|---|---|---|
| Conductivity | 2 | 10 | 10 | May 31, 2010 | 19% over the limit |
| pH | 2 | 7 | 7 | April 30, 2009 | |
| Chlorine, total residual | 1 | 6 | 6 | June 30, 2010 | 4,216% over the limit |
| Solids, total suspended | 2 | 3 | 3 | January 31, 2007 | 134% over the limit |
| Nitrogen, ammonia total [as N] | 2 | 3 | 3 | September 30, 2009 | 115% over the limit |
| Solids, total dissolved | 2 | 2 | 2 | January 31, 2010 | 3% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 1 | 1 | October 31, 2008 | 17% over the limit |
| Hardness, total [as CaCO3] | 4 | 0 | 0 | ||
| Arsenic, total recoverable | 4 | 0 | 0 | ||
| Selenium, total recoverable | 4 | 0 | 0 | ||
| Nickel, total recoverable | 4 | 0 | 0 | ||
| Zinc, total recoverable | 4 | 0 | 0 | ||
| Cadmium, total recoverable | 4 | 0 | 0 | ||
| Lead, total recoverable | 4 | 0 | 0 | ||
| Chromium, total recoverable | 4 | 0 | 0 | ||
| Copper, total recoverable | 4 | 0 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 0 | 0 | ||
| Flow rate | 2 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 0 | 0 | ||
| Alkalinity, total [as CaCO3] | 2 | 0 | 0 | ||
| Nitrogen, nitrate total [as N] | 2 | 0 | 0 | ||
| Coliform, fecal general | 2 | 0 | 0 | ||
| Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia | 2 | 0 | 0 | ||
| Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas | 2 | 0 | 0 | ||
| Flow, total | 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 SD0028240.
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.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, SD0028240.
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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 SD0028240 there.
Nearby on the register
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- Every permit record in South Dakota, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.