Passage Data · Check a report · Use it from your AI

Mahomet, Village of

Sewage treatment plant, Mahomet, Illinois. NPDES permit IL0024414, in force until Jun 30, 2030. Last 12 months: over a limit once (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form 0 monthly (15 values), outfall A01 form 0 monthly (11 values), outfall B01 form 0 monthly (26 values), outfall INF form L monthly (4 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 48 reports late

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

Period endingParameterReportedLimitOver by
September 2026BOD, carbonaceous [5 day, 20 C], monthly average17.81 mg/L≤ 10 mg/L78%

Limits in force (71)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly average minimumreport only (mg/L)all year001
Oxygen, dissolved [DO]minimum weekly averagereport only (mg/L)all year001
Oxygen, dissolved [DO]daily minimumreport only (mg/L)all year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, nitrate total [as N]monthly average≤ 10 mg/Lall year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Chlorine, total residualdaily maximum≤ .75 mg/Lall year001
Flow, totalmonthly totalreport only (MGD)all year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all yearA01
BOD, 5-day, 20 deg. Cweekly averagereport only (mg/L)all yearA01
Solids, total suspendedmonthly averagereport only (mg/L)all yearA01
Solids, total suspendedweekly averagereport only (mg/L)all yearA01
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all yearA01
Nitrogen, nitrate total [as N]monthly averagereport only (mg/L)all yearA01
Phosphorus, total [as P]daily maximumreport only (mg/L)all yearA01
Coliform, fecal - % samples exceeding limitmaximum≤ 10 %May–OctA01
Coliform, fecal generalgeometric mean≤ 200 #/100mLMay–OctA01
Coliform, fecal generaldaily maximumreport only (#/100mL)May–OctA01
Flow, totalmonthly totalreport only (Mgal/mo)all yearA01
Oxygen, dissolved [DO]monthly average minimum≥ 5.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, DecB01
Oxygen, dissolved [DO]minimum weekly average≥ 4 mg/LJan, Feb, Aug, Sep, Oct, Nov, DecB01
Oxygen, dissolved [DO]minimum weekly average≥ 6 mg/LMar–JulB01
Oxygen, dissolved [DO]daily minimum≥ 3.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, DecB01
Oxygen, dissolved [DO]daily minimum≥ 5 mg/LMar–JulB01
pHminimum≥ 6 SUall yearB01
pHmaximum≤ 9 SUall yearB01
Solids, total suspendedmonthly average≤ 12 mg/Lall yearB01
Solids, total suspendeddaily maximum≤ 24 mg/Lall yearB01
Solids, total suspendedmonthly average≤ 225 lb/dall yearB01
Solids, total suspendeddaily maximum≤ 450 lb/dall yearB01
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LApr, May, Sep, OctB01
Nitrogen, ammonia total [as N]monthly average≤ 1.6 mg/LMarB01
Nitrogen, ammonia total [as N]monthly average≤ 1.4 mg/LJun–AugB01
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LApr, May, Sep, OctB01
Nitrogen, ammonia total [as N]daily maximum≤ 6.4 mg/LMarB01
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LJun–AugB01
Nitrogen, ammonia total [as N]daily maximum≤ 3.9 mg/LJan, Feb, Nov, DecB01
Nitrogen, ammonia total [as N]monthly average≤ 28 lb/dApr, May, Sep, OctB01
Nitrogen, ammonia total [as N]monthly average≤ 30 lb/dMarB01
Nitrogen, ammonia total [as N]monthly average≤ 26 lb/dJun–AugB01
Nitrogen, ammonia total [as N]daily maximum≤ 56 lb/dApr, May, Sep, OctB01
Nitrogen, ammonia total [as N]daily maximum≤ 120 lb/dMarB01
Nitrogen, ammonia total [as N]daily maximum≤ 56 lb/dJun–AugB01
Nitrogen, ammonia total [as N]daily maximum≤ 73 lb/dJan, Feb, Nov, DecB01
Nitrogen, ammonia total [as N]weekly average≤ 4 mg/LMarB01
Nitrogen, ammonia total [as N]weekly average≤ 75 lb/dMarB01
Nitrogen, nitrate total [as N]annual average≤ 41.6 lb/dall yearB01
Phosphorus, total [as P]monthly average≤ 1 mg/Lall yearB01
Phosphorus, total [as P]monthly average≤ 19 lb/dall yearB01
Coliform, fecal - % samples exceeding limitmaximum≤ 10 %May–OctB01
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearB01
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearB01
Chlorine, total residualdaily maximum≤ .05 mg/LJan, Feb, Mar, Apr, Nov, DecB01
Chlorine, total residualdaily maximum≤ .05 mg/LMay–OctB01
Coliform, fecal generalgeometric mean≤ 200 #/100mLMay–OctB01
Coliform, fecal generaldaily maximumreport only (#/100mL)May–OctB01
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall yearB01
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 20 mg/Lall yearB01
BOD, carbonaceous [5 day, 20 C]monthly average≤ 188 lb/dall yearB01
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 375 lb/dall yearB01
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

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IL0024414 · MCP: https://passage-data.com/mcp