DENALI NATIONAL PARK FRONT COUNTRY WASTEWATER TREATMENT LAGOON

NPDES permit AK0053775 · Minor FEDERAL · effective, expires 2031-01-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

1values over a limit
0required values missing, on 0 form(s)
4of 11 forms filed late

Last period with anything received: 2026-07-31. Most often over: Solids, total suspended (1).

Reporting

Reports are due about 20 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (31)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]INST MIN >= 7 mg/L all year
001Oxygen, dissolved [DO]INST MAX <= 17 mg/L all year
001pHINST MIN >= 6.5 SU all year
001pHINST MAX <= 8.5 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 27.5 lb/d all year
001Solids, total suspendedWKLY AVG <= 41.3 lb/d all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedWKLY AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 2.1 mg/L all year
001Nitrogen, ammonia total [as N]DAILY MX <= 5.4 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 1.9 lb/d all year
001Nitrogen, ammonia total [as N]DAILY MX <= 5 lb/d all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]DAILY MX report only all year
001Aluminum, total recoverableMO AVG report only all year
001Aluminum, total recoverableDAILY MX report only all year
001Fecal coliform, MPN, EC med, 44.5 CMO AVG <= 20 #/100mL all year
001Fecal coliform, MPN, EC med, 44.5 CDAILY MX <= 40 #/100mL all year
001Flow, in conduit or thru treatment plantMO AVG <= .11 MGD all year
001E. coli, colony forming units [CFU]MO AVG report only all year
001E. coli, colony forming units [CFU]DAILY MX report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 40 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 22.9 lb/d all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 36.7 lb/d all year
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG report only all year
001BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states