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Frontier Communications

Radiotelephone Communications, Marion, Illinois. NPDES permit IL0059625 expired Apr 30, 2025; its limits still apply. Last 12 months: no values over a limit, 1 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: form 0 monthly (23 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (37)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]monthly average minimum≥ 5.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec
Oxygen, dissolved [DO]minimum weekly average≥ 6 mg/LMar–Jul
Oxygen, dissolved [DO]minimum weekly average≥ 4 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec
Oxygen, dissolved [DO]daily minimum≥ 5 mg/LMar–Jul
Oxygen, dissolved [DO]daily minimum≥ 3.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec
pHmonthly minimum≥ 6 SUall year
pHmonthly maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 12 mg/Lall year
Solids, total suspendeddaily maximum≤ 24 mg/Lall year
Solids, total suspendedmonthly average≤ .01 lb/dall year
Solids, total suspendeddaily maximum≤ .02 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 1.8 mg/LJun–Aug
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 2.4 mg/LMar, Apr, May, Sep, Oct
Nitrogen, ammonia total [as N]daily maximum≤ 15 mg/LJun–Aug
Nitrogen, ammonia total [as N]daily maximum≤ 6.7 mg/LJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 14.4 mg/LMar, Apr, May, Sep, Oct
Nitrogen, ammonia total [as N]monthly average≤ .002 lb/dMar, Apr, May, Sep, Oct
Nitrogen, ammonia total [as N]monthly average≤ .0015 lb/dJun–Aug
Nitrogen, ammonia total [as N]monthly average≤ .0033 lb/dJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ .012 lb/dMar, Apr, May, Sep, Oct
Nitrogen, ammonia total [as N]daily maximum≤ .0125 lb/dJun–Aug
Nitrogen, ammonia total [as N]daily maximum≤ .0056 lb/dJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 4.5 mg/LJun–Aug
Nitrogen, ammonia total [as N]weekly average≤ 6.7 mg/LJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 6 mg/LMar, Apr, May, Sep, Oct
Nitrogen, ammonia total [as N]weekly average≤ .005 lb/dMar, Apr, May, Sep, Oct
Nitrogen, ammonia total [as N]weekly average≤ .0038 lb/dJun–Aug
Nitrogen, ammonia total [as N]weekly average≤ .0056 lb/dJan, Feb, Nov, Dec
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 residualdaily maximum≤ .05 mg/Lall year
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 20 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ .01 lb/dall year
BOD, carbonaceous [5 day, 20 C]daily maximum≤ .02 lb/dall year

How strict are these limits?

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

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Your permit document is the final word. As JSON: /api/v1/permits/IL0059625 · MCP: https://passage-data.com/mcp