NATIONAL PARK SERVICE

NPDES permit WA0025569 · Minor FEDERAL · administratively continued, expires 2022-01-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2022-01-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

20values 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: BOD, 5-day, 20 deg. C (8), Ammonia nitrogen, total, [as N] 30 day (6), Solids, total suspended (4).

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 (30)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001BOD, 5-day, 20 deg. CMO AVG <= 10 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 15 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 7.51 lb/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 11.3 lb/d all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001pHINST MIN >= 6.5 SU all year
001pHINST MAX <= 8.5 SU all year
001Solids, total suspendedMO AVG <= 10 mg/L all year
001Solids, total suspendedWKLY AVG <= 15 mg/L all year
001Solids, total suspendedMO AVG <= 7.51 lb/d all year
001Solids, total suspendedWKLY AVG <= 11.3 lb/d all year
001Solids, total suspendedMO AVG report only all year
001Ammonia nitrogen, total, [as N] 30 dayMO AVG <= 1.8 mg/L all year
001Ammonia nitrogen, total, [as N] 30 dayDAILY MX <= 3.5 mg/L all year
001Ammonia nitrogen, total, [as N] 30 dayMO AVG <= 1.4 lb/d all year
001Ammonia nitrogen, total, [as N] 30 dayDAILY MX <= 2.6 lb/d all year
001Fecal coliform, MPN, EC med, 44.5 CMO AVG <= 50 #/100mL all year
001Fecal coliform, MPN, EC med, 44.5 CDAILY MX <= 100 #/100mL all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualMO AVG <= 50 ug/L all year
001Chlorine, total residualDAILY MX <= 50 ug/L all year
001Chlorine, total residualMO AVG <= .04 lb/d all year
001Chlorine, total residualDAILY MX <= .04 lb/d all year
001Chlorine, total residualMO AVG report only all year
001Chlorine, total residualDAILY MX report only all year
001BOD, 5-day, percent removalMO AV MN report only all year
001Solids, suspended percent removalMO AV MN report only 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