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Clean Water Act discharge permit · NPDES MSP091532

WEPFER MARINE OF GREENVILLE LLC, Greenville, MS: NPDES MSP091532 discharge permit, effluent exceedances, inspections, penalties

WEPFER MARINE OF GREENVILLE LLC holds NPDES permit MSP091532, which discharges to Ms0020184 - Greenville Potw. EPA’s file records it issued July 7, 2021 and expiring June 30, 2026. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedWEPFER MARINE OF GREENVILLE LLC
Permittee as filedWEPFER MARINE OF GREENVILLE LLC
NPDES IDMSP091532
Permit statusEffective
Permit typeIndividual industrial user permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJuly 7, 2021
Expiration dateJune 30, 2026
Issuing agencyMDEQ
AddressGreenville, MS 38702
Receiving waterMS0020184 - GREENVILLE POTW

Cited to the EPA ICIS-NPDES permit file (ECHO 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
Copper, total recoverable2208December 31, 2017223,900% over the limit
BOD, 5-day, 20 deg. C2186December 31, 2012286% over the limit
Nitrogen, ammonia total [as N]4284December 31, 2020117% over the limit
pH2153December 31, 2023
Zinc, total recoverable2142December 31, 2008330% over the limit
Cadmium, total recoverable2142December 31, 2019160% over the limit
Mercury, total recoverable2142December 31, 20112,600% over the limit
Nickel, total recoverable2131December 31, 200826% over the limit
Flow, in conduit or thru treatment plant171December 31, 201992% over the limit
Solids, total suspended2120
Oil & Grease2120
Lead, total recoverable2120
Chromium, total recoverable2120
Oil & grease, non-polar material2120

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
April 15, 2025Monitoring Violations - Improper Analysis or Lab ErrorST6

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, MSP091532.

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  • 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 MSP091532 there.

Nearby on the register

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