Priority codes are used to describe the status, site conditions and general details about leaking underground storage tank cases. The values identify whether a case is open or closed and if it has impacted soil and/or groundwater.  For closed release cases (look for a 5 in the code), the values also indicate risk-based closure levels.

Priority Codes

1 — Known or probable effects on groundwater or affects soils to a depth within 30 feet of groundwater depth

1D — Defined soil and groundwater requires remediation

1DF — Defined soil and groundwater requires remediation with free product present

1DR — Remediation ongoing for defined soil and groundwater contamination

1DRF — Remediation ongoing for defined soil and groundwater contamination with free product present

1DW — Defined soil, groundwater, surface water requires remediation

1DWR — Remediation ongoing for defined soil, groundwater, surface water contamination

1F — Undefined release to groundwater with free product present on groundwater and/or surface water

1FR — Remediation ongoing for undefined release to groundwater with free product present on groundwater and/or surface water

1R  — Remediation ongoing for undefined soil and groundwater contamination

1W — Undefined groundwater contamination with impacted surface water

1WR — Remediation ongoing for undefined groundwater contamination with impacted surface water  

3 — Undefined soil contamination requires remediation

3D — Defined soil contamination requires remediation

3DR — Remediation ongoing for defined soil contamination

3R — Remediation ongoing for undefined soil contamination

Closed Release Cases

5G1  — Soil/groundwater levels meet Risk-Based Corrective Action (RBCA) Tier 1

5G1D — Soil/groundwater levels meet RBCA Tier 1, recorded Declaration of Environmental Use Restriction (DEUR)

5G4 —Soil and groundwater contamination. Groundwater concentrations in excess of Aquifer Water Quality Standards (AWQS) have been determined to not be a risk under Arizona Administrative Code (A.A.C.) R18-12-263.04

5R1 — Soil levels meet RBCA Tier 1

5R1D — Soil levels meet RBCA Tier 1, recorded DEUR

5R3 — Soil levels meet RBCA Tier 3

5R3G1 — Soil levels meet RBCA Tier 3 and groundwater levels meet RBCA Tier 1

Other/Miscellaneous

6 — Incident/tank was determined not to be underground storage tank jurisdiction and referred to another program

7 — Leaking underground storage tank case close-out involving a combination with an existing leaking underground storage tank(s) number/case at the same facility

9 — Closed due to being a duplicate leaking underground storage tank record

10G — Groundwater contamination case is being managed by EPA

10R — Soil-only contamination case is being managed by EPA

Historical Priority Codes

2S — Suspected release, unknown whether or not soil contamination exists

5G1V — Soil/groundwater levels meet RBCA Tier 1, recorded Voluntary Environmental Mitigation Use Restriction (VEMUR)

5G2 — Soil/groundwater levels meet RBCA Tier 2

5G3 —Soil/groundwater levels meet RBCA Tier 3

5G4D — Soil and groundwater contamination. Groundwater concentrations in excess of AWQS have been determined to not be a risk under A.A.C. R18-12-263.04. DEUR recorded for soil contamination.

5R1V — Soil levels meet RBCA Tier 1, recorded VEMUR

5R2 — Soil levels meet RBCA Tier 2

5R2D — Soil levels meet RBCA Tier 2, recorded DEUR

5R2V — Soil levels meet RBCA Tier 2, recorded VEMUR

5R3D — Soil levels meet RBCA Tier 3, recorded DEUR

5R3DI — Soil levels meet RBCA Tier 3, recorded DEUR with institutional control(s)

5R3V — Soil levels meet RBCA Tier 3, recorded VEMUR

5S — Closed case for suspected release (release not confirmed)

8 — Suspected case closed out by State Lead to become a confirmed release