EPA-regulated facilities in La Paz County, AZ

There are 306 EPA-regulated facilities inside La Paz County, Arizona. The most common kinds are hazardous waste (115), drinking water systems (107), water discharge (69). 4 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 10 have a violation on record.

Open the map of La Paz County

306facilities in the county

4in significant noncompliance

10with a violation on record

$0in penalties, last 5 years

By category

Category	Facilities
Hazardous waste	115
Treatment, storage or disposal	1
Small quantity generators	19
Chemical (RMP/TRI)	6
Superfund	2
Air emissions	28
Major sources	5
Minor sources	1
Water discharge	69
Major permits	1
Minor permits	40
Drinking water systems	107
Greenhouse gas reporters	4
Scrap yards	1

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.

CIENEGA SPRINGS WATER CO - PARKER * NOT GIVEN, PARKER, AZ, 85344 Significant noncompliance
ARIZONA & CALIFORNIA RAILROAD 1301 S CALIFORNIA AVE, PARKER, AZ, 85344 Significant noncompliance
JOINT VENTURE WWTF LAT 34.143, LON -114.308, PARKER, AZ, 85344 Significant noncompliance
CIBOLA MUTUAL WATER CO 5948 LEVEE RD, CIBOLA, AZ, 85328 Significant noncompliance

Superfund sites

WELCOME RV PARK 106 W. COWELL LANE, QUARTZSITE, AZ, 85346
HI ALI MOTEL 123 WEST COWELL STREET, QUARTZSITE, AZ, 85346

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.