Clean Water Act discharge permit · NPDES OK0043320
GREENFIELD ENVIRONMENTAL MULTISTATE TRUST LLC-CUSHING, Cushing, OK: NPDES OK0043320 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 10Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
GREENFIELD ENVIRONMENTAL MULTISTATE TRUST LLC-CUSHING, held by Greenfield Environmental Multistate Trust LLC-Cushing, holds NPDES permit OK0043320, which discharges to 620900010360 Skull Ck. EPA’s file records it issued April 21, 2021 and expiring May 31, 2026. 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 | GREENFIELD ENVIRONMENTAL MULTISTATE TRUST LLC-CUSHING |
|---|---|
| Permittee as filed | Greenfield Environmental Multistate Trust LLC-Cushing |
| NPDES ID | OK0043320 |
| 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 | April 21, 2021 |
| Expiration date | May 31, 2026 |
| Issuing agency | ODEQ |
| Address | Cushing, OK 74023 |
| Receiving water | 620900010360 Skull Ck |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Skull Creek-Cimarron River (HUC 110500030405) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 16Pollutants on file
- 10Under a numeric limit
- 16With a violation of any kind
- 10With 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 |
|---|---|---|---|---|---|
| Sulfate, total [as SO4] | 12 | 66 | 18 | August 31, 2014 | 125% over the limit |
| Oil & Grease | 12 | 76 | 16 | April 30, 2022 | 77% over the limit |
| Selenium, total [as Se] | 12 | 28 | 8 | March 31, 2001 | 136% over the limit |
| Solids, total suspended | 12 | 90 | 6 | September 30, 2002 | 567% over the limit |
| Chlorine, total residual | 3 | 19 | 4 | December 31, 2023 | 304% over the limit |
| Carbon, tot organic [TOC] | 12 | 64 | 2 | December 31, 2000 | 21% over the limit |
| Oxygen demand, chem. [high level] [COD] | 12 | 38 | 2 | June 30, 2010 | 85% over the limit |
| Solids, total dissolved- 180 deg. C | 0 | 24 | 2 | August 31, 2001 | 17% over the limit |
| Flow, in conduit or thru treatment plant | 6 | 43 | 1 | July 31, 2002 | 49,900% over the limit |
| Cadmium, total [as Cd] | 0 | 7 | 1 | June 30, 2001 | 105% over the limit |
| pH | 6 | 40 | 0 | ||
| Uranium, total | 0 | 20 | 0 | ||
| Lead, total [as Pb] | 3 | 6 | 0 | ||
| Chromium, total [as Cr] | 0 | 6 | 0 | ||
| Copper, total [as Cu] | 0 | 6 | 0 | ||
| Zinc, total [as Zn] | 0 | 6 | 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 OK0043320.
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, OK0043320.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 OK0043320 there.
Nearby on the register
- Discharge permits in Cushing
- Every permit record in Cushing, A to Z
- Discharge permits in Oklahoma
- Every permit record in Oklahoma, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.