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Mid-Missouri Energy, LLC

Industrial Organic Chemicals, Malta Bend, Missouri. NPDES permit MO0131008, in force until Mar 31, 2029. Last 12 months: over a limit once (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form M monthly (28 values), form Q quarterly (8 values), form A yearly
Last report on file
September 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 17 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
August 2026Iron, total recoverable, monthly average1410≤ 840 ug/L68%

Limits in force (52)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cdaily maximum≤ 80 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
Oxygen demand, chem. [high level] [COD]daily maximum≤ 120 mg/Lall year
Oxygen demand, chem. [high level] [COD]monthly average≤ 90 mg/Lall year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendeddaily maximum≤ 100 mg/Lall year
Solids, total suspendedmonthly average≤ 50 mg/Lall year
Oil and grease [soxhlet extr.] tot.daily maximum≤ 15 mg/Lall year
Oil and grease [soxhlet extr.] tot.monthly average≤ 10 mg/Lall year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]daily maximum≤ 10.1 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 4.5 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 10.1 mg/LFeb, Mar, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LJan, Nov
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LMay, Jun
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LAug
Nitrogen, ammonia total [as N]daily maximum≤ 3.9 mg/LJul
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LSep
Nitrogen, ammonia total [as N]monthly average≤ 2.9 mg/LApr
Nitrogen, ammonia total [as N]monthly average≤ 3 mg/LOct
Nitrogen, ammonia total [as N]monthly average≤ 3.4 mg/LFeb, Mar, Dec
Nitrogen, ammonia total [as N]monthly average≤ 3.8 mg/LJan, Nov
Nitrogen, ammonia total [as N]monthly average≤ 1.8 mg/LMay, Jun
Nitrogen, ammonia total [as N]monthly average≤ 1.6 mg/LAug
Nitrogen, ammonia total [as N]monthly average≤ 1.4 mg/LJul
Nitrogen, ammonia total [as N]monthly average≤ 2.1 mg/LSep
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]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
Iron, total recoverabledaily maximum≤ 1579 ug/Lall year
Iron, total recoverablemonthly average≤ 840 ug/Lall year
Aluminum, total recoverabledaily maximum≤ 750 ug/Lall year
Aluminum, total recoverablemonthly average≤ 340 ug/Lall year
Copper, total recoverabledaily maximumreport only (ug/L)all year
Copper, total recoverablemonthly averagereport only (ug/L)all year
Chloridedaily maximumreport only (mg/L)all year
Chloridemonthly averagereport only (mg/L)all 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
Chlorine, total residualdaily maximum≤ 18 ug/Lall year
Chlorine, total residualmonthly average≤ 9 ug/Lall year
Nitrogen, Kjeldahl, total [TKN] [water]daily maximumreport only (mg/L)all year
Nitrogen, Kjeldahl, total [TKN] [water]monthly averagereport only (mg/L)all year
Toxicity [chronic], Ceriodaphnia dubiavaluereport only (toxic)all year
Toxicity [chronic], Pimephales promelas [Fathead Minnow]valuereport only (toxic)all year
Chlorides + Sulfatesdaily maximum≤ 1000 mg/Lall year
Chlorides + Sulfatesmonthly averagereport only (mg/L)all year

New limits from Apr 1, 2027

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Copper, total recoverable, daily maximum26.9 ug/Lnew2.5 ug/L (12 values, 10 below detection)—
Copper, total recoverable, monthly average13.4 ug/Lnew2.5 ug/L (12 values, 10 below detection)—
Toxicity [chronic], Ceriodaphnia dubia, value1.1 toxicnew——
Toxicity [chronic], Pimephales promelas [Fathead Minnow], value1.1 toxicnew——

How strict are these limits?

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

Same industry: the 22 Chemicals and Allied Products permits in Missouri.

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Your permit document is the final word. As JSON: /api/v1/permits/MO0131008 · MCP: https://passage-data.com/mcp