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Clean Water Act discharge permit · NPDES MO0000281

DOE RUN, HERCULANEUM SMELTING DIVISION, Herculaneum, MO: NPDES MO0000281 discharge permit, effluent exceedances, inspections, penalties

DOE RUN, HERCULANEUM SMELTING DIVISION, held by The Doe Run Resources Corporation, holds NPDES permit MO0000281, which discharges to Tributary To Mississippi R.. EPA’s file records it issued August 24, 2022 and expiring August 31, 2027. 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 filedDOE RUN, HERCULANEUM SMELTING DIVISION
Permittee as filedThe Doe Run Resources Corporation
NPDES IDMO0000281
Permit statusEffective
Permit typeIndividual permit
Discharger classMajor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedAugust 24, 2022
Expiration dateAugust 31, 2027
AddressHerculaneum, MO 63048
Receiving waterTributary to Mississippi R.
SubwatershedLower Joachim Creek (HUC 071401010804)
SIC3339 – Primary Nonferrous Metals
Other EPA IDs (FRS)RCRA handler MOD006266373; ICIS-AIR source MO0000002909900003

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.

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
Cadmium, total recoverable313722March 31, 2025219% over the limit
Oxygen demand, chem. [high level] [COD]011117January 31, 2011150% over the limit
Lead, total recoverable33108February 28, 201079% over the limit
pH475December 31, 2012
Zinc, total recoverable33071January 31, 200510% over the limit
Arsenic, total recoverable2611January 31, 2004782% over the limit
Oil and grease [soxhlet extr.] tot.0251March 31, 200630% over the limit
Copper, total recoverable31490
Silver total recoverable0390
Solids, total suspended3260
Temperature, water deg. centigrade0240
Hardness, total [as CaCO3]0240
Thallium, total recoverable080
Antimony, total recoverable080
Phenols080
Flow, in conduit or thru treatment plant260
Storm water flow140
Temperature, water deg. fahrenheit010
Toxicity [acute], Ceriodaphnia dubia010
Toxicity [acute], Pimephales promelas [Fathead Minnow]010
Phosphorus, total [as P]200

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES MO0000281.

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

This public-records page covers Clean Water Act discharge permit NPDES MO0000281, held by The Doe Run Resources Corporation for DOE RUN, HERCULANEUM SMELTING DIVISION in Herculaneum, MO, which discharges to Tributary To Mississippi R. in the Lower Joachim Creek subwatershed (HUC 071401010804). The page lists the permit as Effective and classed as a Major Discharger, with 7 pollutants under a numeric limit and 7 pollutants with an effluent exceedance. Permit dates are given as issued August 24, 2022 and expiring August 31, 2027, as of October 14, 2026.