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Industrial or other facility, Unknown, Hawaii. NPDES permit HI0021939, in force until Nov 30, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Flow rate | daily maximum | report only (gal/min) | all year | 001 |
| pH | minimum | report only (SU) | all year | 001 |
| pH | maximum | report only (SU) | all year | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 001 |
| Acenaphthylene | maximum | report only (ug/L) | all year | 001 |
| Acenaphthene | maximum | report only (ug/L) | all year | 001 |
| Anthracene | maximum | report only (ug/L) | all year | 001 |
| Benzo[b]fluoranthene | maximum | report only (ug/L) | all year | 001 |
| Benzo[k]fluoranthene | maximum | report only (ug/L) | all year | 001 |
| Benzo[a]pyrene | maximum | report only (ug/L) | all year | 001 |
| Chrysene | maximum | report only (ug/L) | all year | 001 |
| Fluoranthene | maximum | report only (ug/L) | all year | 001 |
| Fluorene | maximum | report only (ug/L) | all year | 001 |
| Indeno[1,2,3-cd]pyrene | maximum | report only (ug/L) | all year | 001 |
| Phenanthrene | maximum | report only (ug/L) | all year | 001 |
| Pyrene | maximum | report only (ug/L) | all year | 001 |
| Benzo[ghi]perylene | maximum | report only (ug/L) | all year | 001 |
| Benzo[a]anthracene | maximum | report only (ug/L) | all year | 001 |
| Dibenz[a,h]anthracene | maximum | report only (ug/L) | all year | 001 |
| Naphthalene | maximum | report only (ug/L) | all year | 001 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year | 001 |
| Arsenic, total recoverable | maximum | ≤ 12735 ug/ft2 (alert, not enforceable) | all year | 001W |
| Zinc, total recoverable | maximum | ≤ 32157 ug/ft2 (alert, not enforceable) | all year | 001W |
| Cadmium, total recoverable [mass/area] | maximum | ≤ 3310 ug/ft2 (alert, not enforceable) | all year | 001W |
| Lead, total recoverable | maximum | ≤ 2080 ug/ft2 (alert, not enforceable) | all year | 001W |
| Copper, total recoverable | maximum | ≤ 1231 ug/ft2 (alert, not enforceable) | all year | 001W |
| Tributyltin, total recoverable | maximum | ≤ 4 ug/ft2 (alert, not enforceable) | all year | 001W |
| Mercury, total recoverable | maximum | ≤ 10 ug/ft2 (alert, not enforceable) | all year | 001W |
| Chromium, hexavalent tot recoverable | maximum | ≤ 17811 ug/ft2 (alert, not enforceable) | all year | 001W |
| Flow rate | daily maximum | report only (gal/min) | all year | 002 |
| pH | minimum | report only (SU) | all year | 002 |
| pH | maximum | report only (SU) | all year | 002 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 002 |
| Acenaphthylene | maximum | report only (ug/L) | all year | 002 |
| Acenaphthene | maximum | report only (ug/L) | all year | 002 |
| Anthracene | maximum | report only (ug/L) | all year | 002 |
| Benzo[b]fluoranthene | maximum | report only (ug/L) | all year | 002 |
| Benzo[k]fluoranthene | maximum | report only (ug/L) | all year | 002 |
| Benzo[a]pyrene | maximum | report only (ug/L) | all year | 002 |
| Chrysene | maximum | report only (ug/L) | all year | 002 |
| Fluoranthene | maximum | report only (ug/L) | all year | 002 |
| Fluorene | maximum | report only (ug/L) | all year | 002 |
| Indeno[1,2,3-cd]pyrene | maximum | report only (ug/L) | all year | 002 |
| Phenanthrene | maximum | report only (ug/L) | all year | 002 |
| Pyrene | maximum | report only (ug/L) | all year | 002 |
| Benzo[ghi]perylene | maximum | report only (ug/L) | all year | 002 |
| Benzo[a]anthracene | maximum | report only (ug/L) | all year | 002 |
| Dibenz[a,h]anthracene | maximum | report only (ug/L) | all year | 002 |
| Naphthalene | maximum | report only (ug/L) | all year | 002 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year | 002 |
Cited limits by parameter: Hawaii's rules and the federal ones.
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Your permit document is the final word. As JSON: /api/v1/permits/HI0021939 · MCP: https://passage-data.com/mcp