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Sam Greenwood - City of Cordova

Sewage treatment plant, major discharger, Cordova, Alaska. NPDES permit AK0021547, in force until Feb 28, 2028. Last 12 months: no values over a limit, 1 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form M monthly (36 values)
Renewal application due
Sep 1, 2027 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (36)

ParameterStatisticLimitMonths
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Oxygen, dissolved [DO]daily minimum≥ 6 mg/Lall year
Oxygen, dissolved [DO]daily maximum≤ 17 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 60 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 175 lb/dall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 350 lb/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 263 lb/dall year
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 8.5 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 60 mg/Lall year
Solids, total suspendedmonthly average≤ 175 lb/dall year
Solids, total suspendeddaily maximum≤ 350 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedweekly average≤ 263 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 5.7 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 17 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 33 lb/dall year
Nitrogen, ammonia total [as N]daily maximum≤ 99 lb/dall year
Nitrogen, ammonia total [as N]weekly average≤ 8.6 mg/Lall year
Nitrogen, ammonia total [as N]weekly average≤ 50 lb/dall year
Flow, in conduit or thru treatment plantmonthly average≤ .7 MGDall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmonthly average≤ .1 mg/Lall year
Chlorine, total residualdaily maximum≤ .1 mg/Lall year
Enterococcimonthly geometric meanreport only (CFU/100mL)May–Sep
Enterococcidaily maximumreport only (CFU/100mL)May–Sep
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generaldaily maximum≤ 800 #/100mLall year
Coliform, fecal generalweekly geometric mean≤ 400 #/100mLall year
BOD, 5-day, percent removalminimum≥ 85 %all year
Solids, suspended percent removalminimum≥ 85 %all year

How strict are these limits?

Cited limits by parameter: Alaska'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/AK0021547 · MCP: https://passage-data.com/mcp