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Elizabeth, Village of

Sewage treatment plant, Elizabeth, Illinois. NPDES permit IL0022373, in force until Feb 28, 2030. Last 12 months: over a limit 8 times (last August 2026), 2 of 33 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form 0 monthly (23 values), outfall INF form L monthly (4 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
5 values over a limit, 0 required values missing, 0 of 36 reports late

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

Period endingParameterReportedLimitOver by
October 2025Oxygen, dissolved [DO], monthly average minimum4.79 mg/L≥ 5.5 mg/L13%
November 2025Oxygen, dissolved [DO], monthly average minimum4.63 mg/L≥ 5.5 mg/L16%
December 2025pH, maximum9.46 SU≤ 9 SU—
May 2026Oxygen, dissolved [DO], daily minimum4.34 mg/L≥ 5 mg/L13%
May 2026Oxygen, dissolved [DO], minimum weekly average4.34 mg/L≥ 6.25 mg/L31%
June 2026Oxygen, dissolved [DO], minimum weekly average5.48 mg/L≥ 6.25 mg/L12%
July 2026Oxygen, dissolved [DO], minimum weekly average5.18 mg/L≥ 6.25 mg/L17%
August 2026Oxygen, dissolved [DO], monthly average minimum4.62 mg/L≥ 5.5 mg/L16%

Limits in force (43)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly average minimum≥ 5.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]minimum weekly average≥ 6.25 mg/LMar–Jul001
Oxygen, dissolved [DO]minimum weekly average≥ 4.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]daily minimum≥ 5 mg/LMar–Jul001
Oxygen, dissolved [DO]daily minimum≥ 4 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 192 lb/dall year001
Solids, total suspendedweekly average≤ 287 lb/dall year001
Nitrogen, ammonia total [as N]monthly average≤ 2.5 mg/LMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]monthly average≤ 1.7 mg/LJun–Aug001
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 8.4 mg/LMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 8.4 mg/LJun–Aug001
Nitrogen, ammonia total [as N]daily maximum≤ 6.3 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 16 lb/dMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]monthly average≤ 11 lb/dJun–Aug001
Nitrogen, ammonia total [as N]monthly average≤ 26 lb/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 54 lb/dMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 54 lb/dJun–Aug001
Nitrogen, ammonia total [as N]daily maximum≤ 40 lb/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 6.1 mg/LMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]weekly average≤ 4.2 mg/LJun–Aug001
Nitrogen, ammonia total [as N]weekly average≤ 39 lb/dMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]weekly average≤ 27 lb/dJun–Aug001
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≤ 25 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 160 lb/dall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 256 lb/dall year001
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year002
Solids, total suspendeddaily maximumreport only (mg/L)all year002
Coliform, fecal generaldaily maximumreport only (#/100mL)all year002
Flowmonthly totalreport only (#/mo)all year002
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.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IL0022373 · MCP: https://passage-data.com/mcp