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German Valley, Village of

Sewage treatment plant, German Valley, Illinois. NPDES permit IL0024821, in force until Apr 30, 2029. Last 12 months: over a limit 11 times (last March 2026), 21 required values missing, 4 of 22 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
16 values over a limit, 0 required values missing, 2 of 24 reports late

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

Period endingParameterReportedLimitOver by
October 2025Nitrogen, ammonia total [as N], daily maximum5 mg/L≤ 4.7 mg/L6%
October 2025Nitrogen, ammonia total [as N], daily maximum5 mg/L≤ 4.7 mg/L6%
October 2025Nitrogen, ammonia total [as N], monthly average1.8 mg/L≤ 1.5 mg/L20%
October 2025Nitrogen, ammonia total [as N], monthly average1.8 mg/L≤ 1.5 mg/L20%
December 2025Nitrogen, ammonia total [as N], daily maximum12 mg/L≤ 5.4 mg/L122%
December 2025Nitrogen, ammonia total [as N], monthly average12 mg/L≤ 3.3 mg/L264%
March 2026Nitrogen, ammonia total [as N], daily maximum29 mg/L≤ 4.7 mg/L517%
March 2026Nitrogen, ammonia total [as N], monthly average29 mg/L≤ 1.5 mg/L1833%
March 2026Nitrogen, ammonia total [as N], monthly average4.112 lb/d≤ 2.5 lb/d64%
March 2026Nitrogen, ammonia total [as N], weekly average29 mg/L≤ 3.8 mg/L663%
March 2026Solids, total suspended, monthly average40 mg/L≤ 30 mg/L33%

Limits in force (39)

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≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 50 lb/dall year001
Solids, total suspendedweekly average≤ 75 lb/dall year001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]monthly average≤ 1.1 mg/LJun–Aug001
Nitrogen, ammonia total [as N]monthly average≤ 3.3 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 4.7 mg/LMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 4.7 mg/LJun–Aug001
Nitrogen, ammonia total [as N]daily maximum≤ 5.4 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 2.5 lb/dMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]monthly average≤ 1.8 lb/dJun–Aug001
Nitrogen, ammonia total [as N]monthly average≤ 5.5 lb/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 7.8 lb/dMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 7.8 lb/dJun–Aug001
Nitrogen, ammonia total [as N]daily maximum≤ 9 lb/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 2.8 mg/LJun–Aug001
Nitrogen, ammonia total [as N]weekly average≤ 3.8 mg/LMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]weekly average≤ 4.7 lb/dJun–Aug001
Nitrogen, ammonia total [as N]weekly average≤ 6.3 lb/dMar, Apr, May, Sep, Oct001
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≤ 42 lb/dall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 67 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

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/IL0024821 · MCP: https://passage-data.com/mcp