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Skagway, Municipality of

Sewage treatment plant, major discharger, Skagway, Alaska. NPDES permit AK0020010, in force until Oct 31, 2030. Last 12 months: over a limit 12 times (last July 2026), 11 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form Q2 quarterly
Last report on file
July 2026
Oct 2024 – Sep 2025
6 values over a limit, 0 required values missing, 3 of 12 reports late

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

Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, 20 deg. C, monthly average82.5 mg/L≤ 80 mg/L3%
November 2025pH, instantaneous minimum6.28 SU≥ 6.5 SU—
January 2026pH, instantaneous minimum6.11 SU≥ 6.5 SU—
March 2026pH, instantaneous minimum6.31 SU≥ 6.5 SU—
June 2026BOD, 5-day, 20 deg. C, monthly average180 mg/L≤ 140 mg/L29%
June 2026Coliform, fecal, colony forming units, instantaneous maximum1300000 CFU/100mL≤ 808000 CFU/100mL61%
June 2026Solids, total suspended, monthly average94 mg/L≤ 67 mg/L40%
July 2026BOD, 5-day, 20 deg. C, monthly average185 mg/L≤ 140 mg/L32%
July 2026BOD, 5-day, 20 deg. C, weekly average220 mg/L≤ 200 mg/L10%
July 2026Coliform, fecal, colony forming units, instantaneous maximum14000000 CFU/100mL≤ 808000 CFU/100mL1633%
July 2026Coliform, fecal, colony forming units, monthly geometric mean1264149 CFU/100mL≤ 445000 CFU/100mL184%
July 2026Solids, total suspended, monthly average82 mg/L≤ 67 mg/L22%

Limits in force (2)

ParameterStatisticLimitMonths
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/AK0020010 · MCP: https://passage-data.com/mcp