Clean Water Act discharge permit · NPDES OK0031798
MIAMI, CITY OF-SOUTHEAST WTF, Miami, OK: NPDES OK0031798 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 57Pollutants under a numeric limit
- 11Pollutants with an effluent exceedance
- 1Inspections on file
- 0Formal enforcement actions
MIAMI, CITY OF-SOUTHEAST WTF, held by Miami WWTF-SE Plant, holds NPDES permit OK0031798, which discharges to 121600040010_00 Neosho River. EPA’s file records it issued April 14, 2015 and expiring April 30, 2020. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | MIAMI, CITY OF-SOUTHEAST WTF |
|---|---|
| Permittee as filed | Miami WWTF-SE Plant |
| NPDES ID | OK0031798 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | April 14, 2015 |
| Expiration date | April 30, 2020 |
| Issuing agency | ODEQ |
| Address | Miami, OK 74354 |
| Receiving water | 121600040010_00 Neosho River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Coal Creek-Neosho River (HUC 110702060107) |
| Program components on file | Biosolids, POTW, Pretreatment |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 62Pollutants on file
- 57Under a numeric limit
- 57With a violation of any kind
- 11With 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; the 60 with the most exceedances of 62 are shown.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 3 | 87 | 75 | October 31, 2004 | 460% over the limit |
| Solids, total suspended | 3 | 78 | 60 | March 31, 2014 | 740% over the limit |
| Coliform, fecal general | 0 | 31 | 26 | June 30, 2013 | 9,025% over the limit |
| pH | 4 | 30 | 10 | June 30, 2017 | |
| Oxygen, dissolved [DO] | 1 | 14 | 8 | February 28, 2006 | 76% over the limit |
| Nitrogen, ammonia total [as N] | 6 | 27 | 6 | September 30, 2025 | 99,999% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 11 | 5 | June 30, 2013 | 429% over the limit |
| Zinc, sludge, total, dry weight [as Zn] | 3 | 10 | 4 | December 31, 2019 | 26% over the limit |
| Coliform, fecal - % samples exceeding limit | 0 | 6 | 4 | June 30, 2013 | 2,116% over the limit |
| E. coli | 2 | 3 | 3 | September 30, 2025 | 36% over the limit |
| Whole effluent toxicity | 1 | 3 | 1 | January 31, 2006 | 25% over the limit |
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 1 | 15 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 1 | 15 | 0 | ||
| %Mortality Static Renewal 7Day Chronic Pimephales Promelas | 1 | 14 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 1 | 14 | 0 | ||
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 1 | 13 | 0 | ||
| Solids, total dissolved- 180 deg. C | 3 | 12 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 12 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | 1 | 9 | 0 | ||
| Arsenic, dry weight | 5 | 6 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 5 | 6 | 0 | ||
| Selenium, dry weight | 3 | 6 | 0 | ||
| Copper, dry weight | 3 | 6 | 0 | ||
| Cadmium, dry weight | 3 | 6 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 6 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 6 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 6 | 0 | ||
| LC50 Static Renewal 48Hr Acute Daphnia pulex | 1 | 5 | 0 | ||
| LC50 Static Renewal 48Hr Acute Pimephales promelas | 1 | 5 | 0 | ||
| LC50 Pass/Fail Static Renewal 48Hr Acute Daphnia Pulex | 1 | 3 | 0 | ||
| LC50 Static Renewal 48Hr Acute Pimephales promelas | 1 | 3 | 0 | ||
| %Mortality Static Renewal 48Hr Acute Daphnia Pulex | 1 | 3 | 0 | ||
| % Mortality Static Renewal 48 Hr Pimephales promelas or use TJA6C | 1 | 3 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 1 | 3 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 1 | 3 | 0 | ||
| Level of pathogen requirements achieved | 2 | 2 | 0 | ||
| Description of pathogen option used | 2 | 2 | 0 | ||
| Vector attraction reduction alternative used | 2 | 2 | 0 | ||
| Pollutant table from 503.13 | 1 | 2 | 0 | ||
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 1 | 2 | 0 | ||
| %Mortality 7Day Chronic Ceriodaphnia dubia | 1 | 2 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 1 | 2 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | 1 | 2 | 0 | ||
| Copper, total [as Cu] | 0 | 2 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 1 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 1 | 0 | ||
| Annual whole sludge application rate | 1 | 1 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 1 | 0 | ||
| Annual amt of sludge incinerated | 1 | 1 | 0 | ||
| Annual sludge production, total | 1 | 1 | 0 | ||
| Annual amount of sludge land applied | 1 | 1 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 1 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 1 | 0 | ||
| Annual amt sludge transported interstate | 1 | 1 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 1 | 0 | ||
| Chlorine, total residual | 0 | 1 | 0 | ||
| Whole Effluent Toxicity [WET] - C. dubia | 0 | 1 | 0 | ||
| Whole effluent toxicity - retest #1 | 2 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 2 | 0 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 2 | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| March 20, 2019 | Permit Violations - Violation Specified in Comment | ST6 |
| January 19, 2018 | Permit Violations - Violation Specified in Comment | ST6 |
| June 16, 2017 | Permit Violations - Violation Specified in Comment | ST6 |
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| August 19, 2026 | Evaluation | 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
| Date | What EPA recorded | Agency |
|---|---|---|
| September 16, 2026 | Letter of Violation/ Warning Letter | State |
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 October 14, 2026.