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Abingdon, City of

Sewage treatment plant, Abingdon, Illinois. NPDES permit IL0020761, in force until Oct 31, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form 0 monthly (22 values), outfall 003 form 0 monthly (15 values), outfall A01 form 0 monthly (15 values), outfall INF form L monthly (4 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 48 reports late

Limits in force (74)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly average minimum≥ 5.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]minimum weekly average≥ 4 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]minimum weekly average≥ 6 mg/LMar–Jul001
Oxygen, dissolved [DO]daily minimum≥ 3.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]daily minimum≥ 5 mg/LMar–Jul001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 12 mg/Lall year001
Solids, total suspendeddaily maximum≤ 24 mg/Lall year001
Solids, total suspendedmonthly average≤ 200 lb/dall year001
Solids, total suspendeddaily maximum≤ 400 lb/dall year001
Nitrogen, ammonia total [as N]monthly average≤ 1.6 mg/LMar001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LApr, May, Sep, Oct001
Nitrogen, ammonia total [as N]monthly average≤ .8 mg/LJun–Aug001
Nitrogen, ammonia total [as N]monthly average≤ 2.7 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 5.7 mg/LMar001
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LApr, May, Sep, Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LJun–Aug001
Nitrogen, ammonia total [as N]daily maximum≤ 3.2 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 27 lb/dMar001
Nitrogen, ammonia total [as N]monthly average≤ 25 lb/dApr, May, Sep, Oct001
Nitrogen, ammonia total [as N]monthly average≤ 13 lb/dJun–Aug001
Nitrogen, ammonia total [as N]monthly average≤ 45 lb/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 95 lb/dMar001
Nitrogen, ammonia total [as N]daily maximum≤ 50 lb/dApr, May, Sep, Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 50 lb/dJun–Aug001
Nitrogen, ammonia total [as N]daily maximum≤ 53 lb/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 4 mg/LMar001
Nitrogen, ammonia total [as N]weekly average≤ 2 mg/LJun–Aug001
Nitrogen, ammonia total [as N]weekly average≤ 67 lb/dMar001
Nitrogen, ammonia total [as N]weekly average≤ 33 lb/dJun–Aug001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualdaily maximum≤ .05 mg/Lall year001
Coliform, fecal generaldaily maximumreport only (#/100mL)May–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 20 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 167 lb/dall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 334 lb/dall year001
Oxygen, dissolved [DO]monthly average minimumreport only (mg/L)all year003
Oxygen, dissolved [DO]minimum weekly averagereport only (mg/L)all year003
Oxygen, dissolved [DO]daily minimumreport only (mg/L)all year003
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year003
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year003
pHminimum≥ 6 SUall year003
pHmaximum≤ 9 SUall year003
Solids, total suspendedmonthly average≤ 30 mg/Lall year003
Solids, total suspendedweekly average≤ 45 mg/Lall year003
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year003
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year003
Phosphorus, total [as P]daily maximumreport only (mg/L)all year003
Chlorine, total residualmonthly average≤ .75 mg/Lall year003
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year003
Flow, totalmonthly totalreport only (Mgal/mo)all year003
Oxygen, dissolved [DO]monthly average minimumreport only (mg/L)all yearA01
Oxygen, dissolved [DO]minimum weekly averagereport only (mg/L)all yearA01
Oxygen, dissolved [DO]daily minimumreport only (mg/L)all yearA01
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall yearA01
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall yearA01
pHminimum≥ 6 SUall yearA01
pHmaximum≤ 9 SUall yearA01
Solids, total suspendedmonthly average≤ 30 mg/Lall yearA01
Solids, total suspendedweekly average≤ 45 mg/Lall yearA01
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all yearA01
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all yearA01
Phosphorus, total [as P]daily maximumreport only (mg/L)all yearA01
Chlorine, total residualmonthly average≤ .75 mg/Lall yearA01
Coliform, fecal generaldaily maximum≤ 400 #/100mLall yearA01
Flow, totalmonthly totalreport only (Mgal/mo)all yearA01
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all yearINF
Solids, total suspendedmonthly averagereport only (mg/L)all yearINF
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearINF
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearINF

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IL0020761 · MCP: https://passage-data.com/mcp