Description: Superfund plume boundaries including WQARF, DoD and EPA-NPL sites in Arizona. WQARF = Arizona Water Quality Assurance Revolving Fund to support hazardous substance cleanup efforts in the stateEPA-NPL = The National Priority List is the Environmental Protection Agency (EPA) list of the most serious uncontrolled or abandoned hazardous waste sites identified for possible long-term remedial response under SuperfundDoD = The Department of Defense sites are those sites that are located at either active duty bases or bases being closed under the Base Realignment and Closure (BRAC) regulations and Formerly Used Defense sites that are eligible for funding under the Installation Restoration Program as overseen by ADEQ.Data includes abbreviations of sites (ABB and WPDABB) and internal published map codes (PubNumb), internal (PlaceId) for ADEQ. LastUpdate lists dates of last updates to the plume polygon extents.ADEQ owned and maintained dataset. Updated as needed through coordination with Remedial Projects Unit.