EPA-regulated facilities in Ada County, ID

There are 4,608 EPA-regulated facilities inside Ada County, Idaho. The most common kinds are water discharge (3,487), hazardous waste (806), air emissions (337). 10 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 70 have a violation on record. Penalties over the last five years total $18M across 62 sites.

Open the map of Ada County

4,608facilities in the county

10in significant noncompliance

70with a violation on record

$18Min penalties, last 5 years

By category

Category	Facilities
Hazardous waste	806
Treatment, storage or disposal	3
Large quantity generators	3
Small quantity generators	298
Transporters	5
Chemical (RMP/TRI)	64
Superfund	7
Air emissions	337
Major sources	6
Synthetic minor sources	32
Minor sources	270
Water discharge	3,487
Major permits	6
Minor permits	2,600
Drinking water systems	160
Greenhouse gas reporters	5
Data centers	4
Scrap yards	2
Recycling centers	2

A facility enrolled in several programs counts once in the total and once in each of its categories.

In significant noncompliance

The EPA's designation for its most serious or persistent violations, as of the latest data.

KIRSTEN SUBDIVISION NO. 1 S. COLE RD., BOISE, ID, 83709 Significant noncompliance · $7k in penalties
NICHOLSON S AMYX RD 2 MILES WEST OF PLEASANT VALLEY RD, KUNA, ID, 83634 Significant noncompliance
WESTERN AIRCRAFT 4300 S KENNEDY ST, BOISE, ID, 83705 Significant noncompliance
YANKE MACHINE SHOP - LARGE TANK SHOP 4351 S GEKELER LN, BOISE, ID, 83716 Significant noncompliance
NORTHWEST BUILDING SYSTEMS 405 E BOEING LN, BOISE, ID, 83716 Significant noncompliance
CAPITOL WATER CORPORATION 2626 N ELDORADO ST, BOISE, ID, 83704 Significant noncompliance
MACE 1, LLC W MACE RD, EAGLE, ID, 83616 Significant noncompliance
EAGLE ISLAND STATE PARK 165 EAGLE ISLAND PKWY, EAGLE, ID, 83616 Significant noncompliance
AVIMOR WATER RECLAMATION FACILITY 17819 N STREAMS EDGE WAY, BOISE, ID, 83714 Significant noncompliance
AVIMOR - MCLEOD 1 5337 ID 55, BOISE, ID, 83714 Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

TFORCE FREIGHT INC - BOISE, ID 2750 SATURN WAY, BOISE, ID, 83709 $6.2M in penalties
UNITED PARCEL SERVICE - MERIDIAN HUB 2100 S SILVERSTONE WAY, MERIDIAN, ID, 83642 $5.3M in penalties
UPS - BOISE GATEWAY 4030 SOUTH ORCHARD ST, BOISE, ID, 83705 $5.3M in penalties
ABF FREIGHT SYSTEM, INC. 7556 W MOSSY CUP ST, BOISE, ID, 83709 $535k in penalties
KUNA NORTH WWTP 6950 S TEN MILE RD, MERIDIAN, ID, 83642 $115k in penalties

Superfund sites

ARMY NATIONAL GUARD ORCHARD COMBAT TRAINING CENTER RANGES 4715 S BYRD ST, BOISE, ID, 83705
S E BOISE APPLE ST GW SITE APPLE STREET, BOISE, ID, 83705
USDOI BLM NATIONAL GUARD IMPACT AREA (ORCHARD RANGE) T2&3S R2&3E SEC(ALL), ORCHARD, ID, 83716
VAN WATERS & ROGERS (#8512270110) 140 N MILWAUKEE, BOISE, ID, 83704
ORCHARD STREET MERCURY 919 NORTH ORCHARD STREET, BOISE, ID, 83706
LOGAN STREET MERCURY RESPONSE 971 E LOGAN STREET, BOISE, ID, 83712
FORMER DRY CLEANER (ESQUIRE & USTICK) USTICK ROAD, BOISE, ID, 83714

Data centers

BRISBIE LLC 6990 KUNA MORA RD., KUNA, ID, 83634
Unnamed data center (OSM)
Unnamed data center (OSM)
EMERALD DATA CENTER 9601 EMERALD STREET, BOISE, ID, 83704

Towns in Ada County

Bordering counties

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. The Data page explains where each record comes from and how it can mislead.