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John Collins

Sewerage Systems, Whitefish, Montana. NPDES permit MT0031658 expired Apr 30, 2026; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (7 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (7)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitminimumreport only (deg F)all year
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year
Temperature, water deg. fahrenheitmaximumreport only (deg F)all year
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year
Flow ratemonthly averagereport only (gal/d)all year
Flow ratedaily maximumreport only (gal/d)all year
Temp. diff. between up/down stream deg. Fmonthly averagereport only (deg F)all year

Cited limits by parameter: Montana'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/MT0031658 · MCP: https://passage-data.com/mcp