Environmental compliance · county
Environmental compliance in Ada County
1,315 active EPA-regulated sites in Ada County, Idaho: 72 with an identified violation, 10 in significant violation, 358 inspections and $12.6 million in penalties over five years — EPA ECHO, as of October 18, 2026.
How many facilities in Ada County, Idaho are regulated by the EPA, and how many are in violation (as of October 18, 2026)?
How many active facilities in Ada County, Idaho fall under each EPA program?
A facility can be in several programs.
| Program | Active sites |
|---|---|
| Air (Clean Air Act) | 260 |
| Water discharge permits (Clean Water Act, NPDES) | 713 |
| Hazardous waste (RCRA) | 335 |
| Drinking water systems (SDWA) | 100 |
| Toxics Release Inventory reporters | 16 |
| Greenhouse gas reporters (GHGRP) | 2 |
Which large facilities in Ada County, Idaho does the EPA track, and are they in violation?
| Facility | Compliance status | Quarters in violation (of 12) | Penalties, 5 years |
|---|---|---|---|
| KUNA NORTH WWTP Meridian, ID | Violation Identified | 12 | $114,880 |
| STAR WWTP Star, ID | Violation Identified | 11 | – |
| WEST BOISE WWTP Garden City, ID | Violation Identified | 11 | – |
| LANDER STREET WWTP Boise, ID | Violation Identified | 10 | – |
| MERIDIAN WASTEWATER TREATMENT FACILITY Meridian, ID | Violation Identified | 5 | – |
| MOTIVE POWER Boise, ID | No Violation Identified | 4 | – |
| SAFETY-KLEEN SYSTEMS INC - BOISE FACILITY Boise, ID | No Violation Identified | 3 | – |
| MICRON TECHNOLOGY, INC. Boise, ID | No Violation Identified | 1 | – |
| ADA COUNTY LANDFILL Garden City, ID | No Violation Identified | 0 | – |
| MARATHON PIPE LINE BOISE TERMINAL Boise, ID | No Violation Identified | 0 | – |
| PRESSURE TREATED TIMBER SITE Boise, ID | No Violation Identified | 0 | – |
All figures for Ada County · Idaho · United States
EPA Enforcement and Compliance History Online (ECHO), weekly national export. Counts cover active sites in the Facility Registry Service; inspections, formal actions and penalties cover the last five years, quarters in violation the last three years. The EPA attributes a case that covers several facilities to each of them; area penalty totals here count an amount shared through the same federal case once, facility figures show the amount attributed to that facility. Large facilities are Clean Air Act majors, Clean Water Act majors and large hazardous waste generators or handlers. Source record.
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