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The Doe Run Company

Lead And Zinc Ores, major discharger, Bunker, Missouri. NPDES permit MO0001848 expired Jun 30, 2025; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form M monthly (22 values), form Q quarterly (2 values), form A yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 17 reports late

Limits in force (26)

ParameterStatisticLimitMonths
pHminimum≥ 6.5 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendeddaily maximum≤ 30 mg/Lall year
Solids, total suspendedmonthly average≤ 20 mg/Lall year
Cyanide, free [amenable to chlorination]daily maximumreport only (ug/L)all year
Cyanide, free [amenable to chlorination]monthly averagereport only (ug/L)all year
Chloride [as Cl]daily maximumreport only (mg/L)all year
Chloride [as Cl]monthly averagereport only (mg/L)all year
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year
Sulfate, total [as SO4]monthly averagereport only (mg/L)all year
Zinc, total recoverabledaily maximum≤ 406 ug/Lall year
Zinc, total recoverablemonthly average≤ 211 ug/Lall year
Cadmium, total recoverabledaily maximum≤ 4.5 ug/Lall year
Cadmium, total recoverablemonthly average≤ 2.1 ug/Lall year
Lead, total recoverabledaily maximum≤ 29.5 ug/Lall year
Lead, total recoverablemonthly average≤ 10.7 ug/Lall year
Copper, total recoverabledaily maximum≤ 81 ug/Lall year
Copper, total recoverablemonthly average≤ 30.9 ug/Lall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Toxicity [chronic], Ceriodaphnia dubiavalue≤ 1.6 toxicall year
Toxicity [chronic], Pimephales promelas [Fathead Minnow]value≤ 1.6 toxicall year
Mercury, total [as Hg]daily maximum≤ 2 ug/Lall year
Mercury, total [as Hg]monthly average≤ 1 ug/Lall year
Chlorides + Sulfatesdaily maximumreport only (mg/L)all year
Chlorides + Sulfatesmonthly averagereport only (mg/L)all year

How strict are these limits?

Cited limits by parameter: Missouri's rules and the federal ones.

Same industry: the 12 Metal Mining permits in Missouri.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MO0001848 · MCP: https://passage-data.com/mcp