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Denali National Park Front Country Wastewater Treatment Lagoon

Federal facility (Sewerage Systems), Denali National Park, Alaska. NPDES permit AK0053775, in force until Jan 31, 2031. Last 12 months: no values over a limit, 5 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (31 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 1 of 13 reports late

Limits in force (31)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 7 mg/Lall year
Oxygen, dissolved [DO]instantaneous maximum≤ 17 mg/Lall year
pHinstantaneous minimum≥ 6.5 SUall year
pHinstantaneous maximum≤ 8.5 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 27.5 lb/dall year
Solids, total suspendedweekly average≤ 41.3 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 2.1 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 5.4 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 1.9 lb/dall year
Nitrogen, ammonia total [as N]daily maximum≤ 5 lb/dall year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year
Aluminum, total recoverablemonthly averagereport only (ug/L)all year
Aluminum, total recoverabledaily maximumreport only (ug/L)all year
Fecal coliform, MPN, EC med, 44.5 Cmonthly average≤ 20 #/100mLall year
Fecal coliform, MPN, EC med, 44.5 Cdaily maximum≤ 40 #/100mLall year
Flow, in conduit or thru treatment plantmonthly average≤ .11 MGDall year
E. coli, colony forming units [CFU]monthly averagereport only (CFU/100mL)all year
E. coli, colony forming units [CFU]daily maximumreport only (CFU/100mL)all year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 22.9 lb/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 36.7 lb/dall year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]weekly averagereport only (mg/L)all year
BOD, carb-5 day, 20 deg C, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year

How strict are these limits?

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/AK0053775 · MCP: https://passage-data.com/mcp