EPA-regulated facilities near Wailuku, HI
There are 551 EPA-regulated facilities within 5 miles of Wailuku, Hawaii. The most common kinds are water discharge (361), hazardous waste (204), air emissions (12). None is in significant noncompliance, but 4 have a violation on record. Penalties over the last five years total $1.6M across 7 sites.
By category
| Category | Facilities |
|---|---|
| Hazardous waste | 204 |
| Small quantity generators | 85 |
| Transporters | 8 |
| Chemical (RMP/TRI) | 8 |
| Superfund | 3 |
| Air emissions | 12 |
| Major sources | 4 |
| Synthetic minor sources | 1 |
| Minor sources | 1 |
| Water discharge | 361 |
| Major permits | 1 |
| Minor permits | 290 |
| Drinking water systems | 3 |
| Greenhouse gas reporters | 2 |
| Recycling centers | 1 |
A facility enrolled in several programs counts once in the total and once in each of its categories.
Largest penalties
Penalties assessed over the last five years.
- HAMMERHEAD METALS RECYCLING $1.6M in penalties
- IAO SURFACE WATER TREATMENT PLANT $45k in penalties
- LIHIKAI SCHOOL PARK IMPROVEMENTS $2k in penalties
- GREAT AMERICAN STORAGE $2k in penalties
- PU'UNANI HOMESTEAD WATER STORAGE TANK $2k in penalties
Superfund sites
County
Nearby towns
Reading these numbers
These are regulatory records, not measurements of pollution. Most facilities appear because they hold a permit or file reports, and most of them are compliant; a listing is not a claim that a facility has polluted anything. Compliance status and penalties are the EPA's own determinations in data retrieved Oct 9, 2026. Distances are from the center of Wailuku as the Census Bureau records it. The Data page explains where each record comes from and how it can mislead.