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

Topeka WWTP, Town of

Sewage treatment plant, Topeka, Indiana. NPDES permit IN0021571, in force until Aug 31, 2028. Last 12 months: no values over a limit, 3 of 18 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (22 values), form AQ quarterly (2 values), form TX yearly (8 values)
Renewal application due
Mar 4, 2028 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
1 value over a limit, 6 required values missing, 4 of 20 reports late

Limits in force (63)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily average minimum≥ 6 mg/LMay–Nov001
Oxygen, dissolved [DO]daily average minimum≥ 5 mg/LJan, Feb, Mar, Apr, Dec001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 24 mg/LJan, Feb, Mar, Apr, Dec001
Solids, total suspendedmonthly average≤ 18 mg/LMay–Nov001
Solids, total suspendedmaximum weekly average≤ 36 mg/LJan, Feb, Mar, Apr, Dec001
Solids, total suspendedmaximum weekly average≤ 27 mg/LMay–Nov001
Solids, total suspendedmonthly average≤ 60.1 lb/dJan, Feb, Mar, Apr, Dec001
Solids, total suspendedmonthly average≤ 45.1 lb/dMay–Nov001
Solids, total suspendedmaximum weekly average≤ 90.1 lb/dJan, Feb, Mar, Apr, Dec001
Solids, total suspendedmaximum weekly average≤ 67.6 lb/dMay–Nov001
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)Mar, Jun, Sep, Dec001
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)Mar, Jun, Sep, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1.3 mg/LMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 1.3 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 2.9 mg/LMay–Nov001
Nitrogen, ammonia total [as N]daily maximum≤ 3.1 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 3.3 lb/dMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 3.3 lb/dJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 7.3 lb/dMay–Nov001
Nitrogen, ammonia total [as N]daily maximum≤ 7.7 lb/dJan, Feb, Mar, Apr, Dec001
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year001
Phosphorus, total [as P]monthly averagereport only (lb/d)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
E. coli, colony forming units [CFU]monthly geometric mean≤ 125 CFU/100mLApr–Oct001
E. coli, colony forming units [CFU]daily maximum≤ 235 CFU/100mLApr–Oct001
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 1 tox acuteAug001
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 1 tox acuteSep001
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 1 tox acuteSep001
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 1 tox chronicAug001
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 1 tox chronicSep001
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 1 tox chronicSep001
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox acuteAug001
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox acuteSep001
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox acuteSep001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox chronicAug001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox chronicSep001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox chronicSep001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 20 mg/LJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 15 mg/LMay–Nov001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 30 mg/LJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 23 mg/LMay–Nov001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 50.1 lb/dJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 37.6 lb/dMay–Nov001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 75.1 lb/dJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 57.6 lb/dMay–Nov001
Phosphorus, total percent removalmonthly average minimumreport only (%)all year001
Flow, totalmonthly totalreport only (Mgal/mo)all year001
Copper, dry weightvaluereport only (mg/kg)Jun, DecPRT
Copper, dry weightvaluereport only (mg/kg)Jun, DecPRT
Cadmium, dry weightvaluereport only (mg/kg)Jun, DecPRT
Cadmium, dry weightvaluereport only (mg/kg)Jun, DecPRT
Molybdenum, sludge, total, dry weight [as Mo]valuereport only (mg/kg)Jun, DecPRT
Molybdenum, sludge, total, dry weight [as Mo]valuereport only (mg/kg)Jun, DecPRT
Zinc, sludge, total, dry weight [as Zn]valuereport only (mg/kg)Jun, DecPRT
Zinc, sludge, total, dry weight [as Zn]valuereport only (mg/kg)Jun, DecPRT
Lead, sludge, total, dry weight [as Pb]valuereport only (mg/kg)Jun, DecPRT
Lead, sludge, total, dry weight [as Pb]valuereport only (mg/kg)Jun, DecPRT
Nickel, sludge, total, dry weight [as Ni]valuereport only (mg/kg)Jun, DecPRT
Nickel, sludge, total, dry weight [as Ni]valuereport only (mg/kg)Jun, DecPRT
Mercury, sludge, total, dry weight [as Hg]valuereport only (mg/kg)Jun, DecPRT
Mercury, sludge, total, dry weight [as Hg]valuereport only (mg/kg)Jun, DecPRT

How strict are these limits?

Cited limits by parameter: Indiana'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/IN0021571 · MCP: https://passage-data.com/mcp