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Gardner, Village of

Sewage treatment plant, Gardner, Illinois. NPDES permit IL0028894, in force until Dec 31, 2030. Last 12 months: over a limit 14 times (last August 2026), 22 required values missing, 11 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form 0 monthly (18 values), outfall INF form L monthly (4 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
12 values over a limit, 0 required values missing, 10 of 24 reports late

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

All 14 values over a limit
Period endingParameterReportedLimitOver by
October 2025Solids, total suspended, monthly average65 mg/L≤ 37 mg/L76%
October 2025Solids, total suspended, weekly average65 mg/L≤ 45 mg/L44%
November 2025Solids, total suspended, monthly average76.5 mg/L≤ 37 mg/L107%
November 2025Solids, total suspended, weekly average120 mg/L≤ 45 mg/L167%
December 2025Solids, total suspended, monthly average39 mg/L≤ 37 mg/L5%
April 2026Solids, total suspended, monthly average55 mg/L≤ 37 mg/L49%
April 2026Solids, total suspended, weekly average66 mg/L≤ 45 mg/L47%
April 2026Solids, total suspended, weekly average66 mg/L≤ 45 mg/L47%
June 2026Solids, total suspended, monthly average48 mg/L≤ 37 mg/L30%
June 2026Solids, total suspended, weekly average52 mg/L≤ 45 mg/L16%
July 2026Solids, total suspended, monthly average45.5 mg/L≤ 37 mg/L23%
July 2026Solids, total suspended, weekly average54 mg/L≤ 45 mg/L20%
August 2026Solids, total suspended, monthly average49 mg/L≤ 37 mg/L32%
August 2026Solids, total suspended, weekly average54 mg/L≤ 45 mg/L20%

Limits in force (24)

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≤ 37 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 711 lb/dall year001
Solids, total suspendedweekly average≤ 865 lb/dall year001
Nitrogen, ammonia total [as N]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≤ 25 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 480 lb/dall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 769 lb/dall year001
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

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/IL0028894 · MCP: https://passage-data.com/mcp