Underground storage tanks in Arizona

EPA UST Finder county aggregates for Arizona — registered tank facilities and leak (LUST) incidents as reported by the state program to EPA.

10,121registered facilities

6,023open tanks

23,841closed tanks

9,330leak incidents

469cleanups still open

By county

County	Facilities	Open tanks	Closed tanks	Leak incidents	Open cleanups
Maricopa	4,903	3,082	11,572	4,557	133
Pima	1,514	794	3,575	1,346	44
Pinal	487	301	1,142	451	22
Coconino	486	290	1,265	492	39
Mohave	448	336	938	431	19
Yavapai	406	261	898	329	35
Navajo	381	212	874	383	69
Cochise	337	144	811	299	15
Yuma	334	203	794	347	30
Apache	249	137	585	176	17
Gila	208	94	489	197	4
La Paz	141	66	361	143	27
Graham	107	37	248	71	4
Santa Cruz	82	55	178	66	6
Greenlee	38	11	111	42	5

Screen a specific property in Arizona

County numbers set the context; a deal needs the registry around one address — registered tanks at the parcel, facilities within 500/1,500 ft, leak cleanups with status and distance, every line cited to the official record.

Screen an address — $49

This is a screen of EPA-registered tank and leak records, not an environmental site assessment. State registries are incomplete by design: tanks removed before 1986 and most residential heating-oil tanks were never registered, so a clean screen cannot prove the absence of a tank. "Closed" means a tank was taken out of service per the registry — it does not certify that no contamination remains.

source: EPA UST Finder EPA data vintage 2024-12-04