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Rochester Water Department

Water Supply, Rochester, Indiana. NPDES permit IN0003662, in force until Aug 31, 2027. Last 12 months: over a limit once (last March 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form AQ quarterly (18 values)
Renewal application due
Mar 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 4 reports late

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

Period endingParameterReportedLimitOver by
March 2026Iron, total recoverable, quarterly average3.56 mg/L≤ 2.4 mg/L48%

Limits in force (18)

ParameterStatisticLimitMonths
pHdaily minimum≥ 6 SUMar, Jun, Sep, Dec
pHdaily minimum≥ 6 SUMar, Jun, Sep, Dec
pHdaily maximum≤ 9 SUMar, Jun, Sep, Dec
pHdaily maximum≤ 9 SUMar, Jun, Sep, Dec
Solids, total suspendedquarterly average≤ 20 mg/LMar, Jun, Sep, Dec
Solids, total suspendedquarterly average≤ 20 mg/LMar, Jun, Sep, Dec
Solids, total suspendeddaily maximum≤ 40 mg/LMar, Jun, Sep, Dec
Solids, total suspendeddaily maximum≤ 40 mg/LMar, Jun, Sep, Dec
Iron, total recoverablequarterly average≤ 2.4 mg/LMar, Jun, Sep, Dec
Iron, total recoverablequarterly average≤ 2.4 mg/LMar, Jun, Sep, Dec
Iron, total recoverabledaily maximum≤ 5.5 mg/LMar, Jun, Sep, Dec
Iron, total recoverabledaily maximum≤ 5.5 mg/LMar, Jun, Sep, Dec
Flow, in conduit or thru treatment plantquarterly averagereport only (MGD)Mar, Jun, Sep, Dec
Flow, in conduit or thru treatment plantquarterly averagereport only (MGD)Mar, Jun, Sep, Dec
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)Mar, Jun, Sep, Dec
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)Mar, Jun, Sep, Dec
Flow, totalquarterly totalreport only (Mgal/qtr)Mar, Jun, Sep, Dec
Flow, totalquarterly totalreport only (Mgal/qtr)Mar, Jun, Sep, Dec

How strict are these limits?

Cited limits by parameter: Indiana's rules and the federal ones.

Same industry: the 95 Water Supply permits in Indiana.

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/IN0003662 · MCP: https://passage-data.com/mcp