City and County of Honolulu

NPDES permit HI0020117 · Major POTW · administratively continued, expires 2026-04-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

5values over a limit
0required values missing, on 0 form(s)
2of 25 forms filed late

Last period with anything received: 2026-07-31. Most often over: Pass/Fail Static 20 Minute Fertilization Chronic Tripneustes gratilla (5).

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (14)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CMO AVG <= 119 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 122 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 89414 lb/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 91594 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001Solids, total suspendedMO AVG <= 48 mg/L all year
001Solids, total suspendedWKLY AVG <= 50 mg/L all year
001Solids, total suspendedMO AVG <= 36349 lb/d all year
001Solids, total suspendedWKLY AVG <= 37403 lb/d all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedDAILY MX report only all year
001BOD, 5-day, percent removalMO AV MN >= 30 % all year
001Solids, suspended percent removalMO AV MN >= 60 % 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