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Clean Water Act discharge permit · NPDES OK0001643

FMRI, INC., Muskogee, OK: NPDES OK0001643 discharge permit, effluent exceedances, inspections, penalties

FMRI, INC. holds NPDES permit OK0001643, which discharges to 120400010260 Arkansas River. EPA’s file records it issued May 22, 2015 and expiring June 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 filedFMRI, INC.
Permittee as filedFMRI, INC.
NPDES IDOK0001643
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typeNot a publicly owned treatment works
IssuedMay 22, 2015
Expiration dateJune 30, 2020
Issuing agencyODEQ
AddressMuskogee, OK 74403
Receiving water120400010260 Arkansas River
SubwatershedHorseshoe Lake-Arkansas River (HUC 111101020307)
NAICS331492 – Secondary Smelting, Refining, and Alloying of Nonferrous Metal [except Copper and Aluminum]
SIC3341 – Secondary Nonferrous Metals

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

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Whole effluent toxicity14743June 30, 202099,999% over the limit
Nitrogen, nitrate total [as N]47018November 30, 201499,999% over the limit
Fluoride, total [as F]46717February 28, 202199,999% over the limit
Nitrogen, ammonia total [as N]7628September 30, 200799,999% over the limit
Columbium, total0128May 31, 200999,999% over the limit
Lead, total [as Pb]4587August 31, 200799,999% over the limit
Solids, total suspended0146March 31, 2008540% over the limit
Niobium, Total4455February 28, 2021955% over the limit
Oxygen demand, chem. [high level] [COD]0124December 31, 200925% over the limit
Cadmium, total [as Cd]0114August 31, 200799,999% over the limit
pH4353April 30, 2013
Flow, in conduit or thru treatment plant2310
Solids, total dissolved- 180 deg. C5100
LC50 Static Renewal 48Hr Acute Daphnia pulex160
LC50 Static Renewal 48Hr Acute Pimephales promelas160
LC50 Pass/Fail Static Renewal 48Hr Acute Daphnia Pulex160
LC50 Static Renewal 48Hr Acute Pimephales promelas160
Arsenic, total [as As]250
Tantalum, total040
Coef Of Var Static Renewal 48Hr Acute D. pulex040
Coef Of Var Static Renewal 48Hr Acute Pimephales promelas040
Hardness, total [as CaCO3]030
Chromium, total [as Cr]030
Copper, total [as Cu]030
Nickel, total [as Ni]030
Zinc, total [as Zn]030
%Mortality Static Renewal 48Hr Acute Daphnia Pulex120
% Mortality Static Renewal 48 Hr Pimephales promelas or use TJA6C120

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

DateWhat EPA recordedAgency
March 12, 2020Management Practice Violations - Improper Operation and MaintenanceST6
August 2, 2018Permit Violations - Violation Specified in CommentST6

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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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

The page covers the NPDES permit OK0001643 for FMRI, INC. in Muskogee, OK, which discharges to the 120400010260 Arkansas River. The permit is listed as an individual permit for a Major discharger with a status of Administratively continued. The page lists 16 pollutants under a numeric limit and 11 pollutants with an effluent exceedance.