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Green Plains Central City, LLC

Industrial Organic Chemicals, Central City, Nebraska. NPDES permit NE0134261, in force until Dec 31, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form M quarterly (12 values), form Q quarterly (4 values), form A yearly
Renewal application due
Jul 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 17 reports late

Limits in force (30)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year
Temperature, water deg. fahrenheitdaily maximum≤ 90 deg Fall year
Conductivitymonthly average≤ 4244.67 mmho/cmApr–Sep
Conductivitymonthly averagereport only (mmho/cm)Jan, Feb, Mar, Oct, Nov, Dec
Conductivitydaily maximum≤ 5122.77 mmho/cmApr–Sep
Conductivitydaily maximumreport only (mmho/cm)Jan, Feb, Mar, Oct, Nov, Dec
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Chloride [as Cl]monthly average≤ 791.54 mg/LMar–May
Chloride [as Cl]monthly average≤ 469.28 mg/LJun–Oct
Chloride [as Cl]monthly average≤ 463.78 mg/LJan, Feb, Nov, Dec
Chloride [as Cl]daily maximum≤ 1587.97 mg/LMar–May
Chloride [as Cl]daily maximum≤ 941.47 mg/LJun–Oct
Chloride [as Cl]daily maximum≤ 930.43 mg/LJan, Feb, Nov, Dec
Hydrocarbons, total gas chromatographmonthly averagereport only (mg/L)all year
Hydrocarbons, total gas chromatographdaily maximum≤ 10 mg/Lall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmonthly average≤ .028 mg/LMar–May
Chlorine, total residualmonthly average≤ .011 mg/LJun–Oct
Chlorine, total residualmonthly average≤ .015 mg/LJan, Feb, Nov, Dec
Chlorine, total residualdaily maximum≤ .038 mg/LMar–May
Chlorine, total residualdaily maximum≤ .021 mg/LJun–Oct
Chlorine, total residualdaily maximum≤ .029 mg/LJan, Feb, Nov, Dec
Toxicity [acute], Ceriodaphnia dubiavalue≤ 1 tox acuteall year
Toxicity [acute], Pimephales promelas [Fathead Minnow]value≤ 1 tox acuteall year
Chemical Oxygen Demand [COD]monthly averagereport only (mg/L)all year
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year

How strict are these limits?

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

Same industry: the 31 Chemicals and Allied Products permits in Nebraska.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NE0134261 · MCP: https://passage-data.com/mcp