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Missouri Walnut, LLC

Sawmills And Planing Mills, General, Neosho, Missouri. NPDES permit MO0138231 expired Sep 30, 2024; its limits still apply. Last 12 months: no values over a limit, 46 required values missing, 4 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form Q quarterly (22 values), outfall 002 form Q quarterly (8 values), outfall 003 form Q quarterly (8 values), outfall 004 form Q quarterly (8 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 4 of 16 reports late

Limits in force (46)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year001
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year001
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year001
Oxygen demand, chem. [high level] [COD]monthly averagereport only (mg/L)all year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, settleabledaily maximum≤ 1.5 mL/Lall year001
Solids, settleablemonthly average≤ 1 mL/Lall year001
Oil and grease [soxhlet extr.] tot.daily maximum≤ 15 mg/Lall year001
Oil and grease [soxhlet extr.] tot.monthly average≤ 10 mg/Lall year001
Zinc, total recoverabledaily maximum≤ 188 ug/Lall year001
Zinc, total recoverablemonthly average≤ 93 ug/Lall year001
Chloridedaily maximum≤ 377 mg/Lall year001
Chloridemonthly average≤ 188 mg/Lall year001
Rainfalldaily maximumreport only (in)all year001
Rainfallmonthly averagereport only (in)all year001
Storm water flowdaily maximumreport only (MGD)all year001
Storm water flowmonthly averagereport only (MGD)all year001
Chlorides + Sulfatesdaily maximum≤ 1000 mg/Lall year001
Chlorides + Sulfatesmonthly average≤ 1000 mg/Lall year001
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year002
pHminimum≥ 6.5 SUall year002
pHmaximum≤ 9 SUall year002
Solids, total suspendeddaily maximumreport only (mg/L)all year002
Oil and grease [soxhlet extr.] tot.daily maximum≤ 10 mg/Lall year002
Zinc, total recoverabledaily maximumreport only (ug/L)all year002
Rainfalldaily maximumreport only (in)all year002
Storm water flowdaily maximumreport only (MGD)all year002
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year003
pHminimum≥ 6.5 SUall year003
pHmaximum≤ 9 SUall year003
Solids, total suspendeddaily maximumreport only (mg/L)all year003
Oil and grease [soxhlet extr.] tot.daily maximum≤ 10 mg/Lall year003
Zinc, total recoverabledaily maximumreport only (ug/L)all year003
Rainfalldaily maximumreport only (in)all year003
Storm water flowdaily maximumreport only (MGD)all year003
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year004
pHminimum≥ 6.5 SUall year004
pHmaximum≤ 9 SUall year004
Solids, total suspendeddaily maximumreport only (mg/L)all year004
Oil and grease [soxhlet extr.] tot.daily maximum≤ 10 mg/Lall year004
Zinc, total recoverabledaily maximumreport only (ug/L)all year004
Rainfalldaily maximumreport only (in)all year004
Storm water flowdaily maximumreport only (MGD)all year004

How strict are these limits?

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

Same industry: the 4 Lumber and Wood Products 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/MO0138231 · MCP: https://passage-data.com/mcp