NPDES permit HI0021504 · Minor NON-POTW · expired, expires 2025-10-31 · EPA's file as of 2026-09-19
Check this month's numbers before you fileThis permit expired on 2025-10-31 and is expired: its last limits keep applying until a new permit is issued, and EPA still expects the reports.
Last period with anything received: 2026-07-31.
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).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Turbidity | MO AVG | report only | all year |
| 001 | Turbidity | DAILY MX | <= 5 NTU | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | <= 5 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | <= 117.6 lb/d | all year |
| 001 | pH | MINIMUM | >= 7 SU | all year |
| 001 | pH | MAXIMUM | <= 8.6 SU | all year |
| 001 | Solids, total suspended | MO AVG | report only | all year |
| 001 | Solids, total suspended | DAILY MX | <= 10 mg/L | all year |
| 001 | Solids, total suspended | MO AVG | report only | all year |
| 001 | Solids, total suspended | DAILY MX | <= 235.2 lb/d | all year |
| 001 | Nitrogen, total [as N] | MAXIMUM | report only | all year |
| 001 | Phosphorus, total [as P] | MAXIMUM | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 001 | Nitrogen, ammonia total [as NH4] | MAXIMUM | 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