University of Hawaii

NPDES permit HI0020630 · Minor NON-POTW · administratively continued, expires 2018-12-19 · 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.

This permit expired on 2018-12-19 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

EPA's file shows no filings for this permit in this window. That is a statement about the file, not about the facility.

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among HI permits in EPA's filings — check your permit).

Limits in force (32)

OutfallParameterStatisticLimitMonths
001TurbidityAGM <= .2 NTU all year
001TurbidityMAXIMUM <= .5 NTU all year
001BOD, 5-day, 20 deg. CQRTR AVG <= 5 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 7.5 mg/L all year
001BOD, 5-day, 20 deg. CQRTR AVG <= 26.7 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 40 lb/d all year
001pHMINIMUM >= 7.6 SU all year
001pHMAXIMUM <= 8.6 SU all year
001Solids, total suspendedQRTR AVG <= 60 mg/L all year
001Solids, total suspendedDAILY MX <= 90 mg/L all year
001Solids, total suspendedQRTR AVG <= 320 lb/d all year
001Solids, total suspendedDAILY MX <= 480 lb/d all year
001Nitrogen, total [as N]AGM <= 430 ug/L all year
001Nitrogen, total [as N]DAILY MX <= 653 ug/L all year
001Nitrogen, total [as N]AGM <= 2.29 lb/d all year
001Nitrogen, total [as N]DAILY MX <= 3.48 lb/d all year
001Nitrite + Nitrate total [as N]AGM <= 111 ug/L all year
001Nitrite + Nitrate total [as N]MAXIMUM <= 288 ug/L all year
001Nitrite + Nitrate total [as N]AGM <= .592 lb/d all year
001Nitrite + Nitrate total [as N]MAXIMUM <= 1.537 lb/d all year
001Chlorophyll AAGM <= .15 ug/L all year
001Chlorophyll AMAXIMUM <= .5 ug/L all year
001Chlorophyll AAGM <= .0008 lb/d all year
001Chlorophyll AMAXIMUM <= .0026 lb/d all year
001Flow, in conduit or thru treatment plantMAXIMUM report only all year
001Chlorine, total residualDAILY MX report only all year
001EnterococciGEO MEAN report only all year
001EnterococciMAXIMUM report only all year
001Nitrogen, ammonia total [as NH4]AGM <= 33.5 ug/L all year
001Nitrogen, ammonia total [as NH4]MAXIMUM <= 137 ug/L all year
001Nitrogen, ammonia total [as NH4]AGM <= .178 lb/d all year
001Nitrogen, ammonia total [as NH4]MAXIMUM <= .731 lb/d 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