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Hobart Wastewater Treatment Plant

Sewage treatment plant, major discharger, Hobart, Indiana. NPDES permit IN0061344, in force until Jun 30, 2029. Last 12 months: no values over a limit, 6 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (33 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 2 of 13 reports late

Limits in force (42)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily average minimum≥ 7 mg/Lall year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 10 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 15 mg/Lall year
Solids, total suspendedmonthly average≤ 400 lb/dall year
Solids, total suspendedmaximum weekly average≤ 600 lb/dall year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]monthly average≤ .2 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ .45 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 8 lb/dall year
Nitrogen, ammonia total [as N]daily maximum≤ 18 lb/dall year
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year
Phosphorus, total [as P]monthly averagereport only (lb/d)all year
Copper, total recoverablemonthly average≤ .0025 mg/Lall year
Copper, total recoverabledaily maximum≤ .0052 mg/Lall year
Copper, total recoverablemonthly average≤ .1 lb/dall year
Copper, total recoverabledaily maximum≤ .21 lb/dall year
Copper, total recoverablemonthly averagereport only (mg/L)all year
Copper, total recoverabledaily maximumreport only (mg/L)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
E. coli, colony forming units [CFU]monthly geometric mean≤ 125 CFU/100mLApr–Oct
E. coli, colony forming units [CFU]daily maximum≤ 235 CFU/100mLApr–Oct
E. coli, colony forming units [CFU]daily maximumreport only (CFU/100mL)Apr–Oct
Number of Eventsmonthly totalreport only (# exceed)Apr–Oct
Number of Eventsmonthly totalreport only (#)Apr–Oct
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 1 tox acuteJun
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 1.2 tox chronicJun
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox acuteJun
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 1.2 tox chronicJun
Mercury, total recoverablemonthly average≤ 1.3 ng/LFeb, Apr, Jun, Aug, Oct, Dec
Mercury, total recoverabledaily maximum≤ 3.2 ng/LFeb, Apr, Jun, Aug, Oct, Dec
Mercury, total recoverablemonthly average≤ .000052 lb/dFeb, Apr, Jun, Aug, Oct, Dec
Mercury, total recoverabledaily maximum≤ .00013 lb/dFeb, Apr, Jun, Aug, Oct, Dec
Mercury, total recoverabledaily maximumreport only (ng/L)Feb, Apr, Jun, Aug, Oct, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 5 mg/Lall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 7.5 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 200 lb/dall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 300 lb/dall year
Phosphorus, total percent removalmonthly average minimum≥ 65 %all year
Flow, totalmonthly totalreport only (Mgal/mo)all year

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IN0061344 · MCP: https://passage-data.com/mcp