Objectives To ensure the safety of the public and the environment with site inspections.
Location 9698 W Ajo Way
Waste Acreage 7.3
Operation Dates 1973-1977
Status Monitored Only Site
Type Groundwater Protection Project
Annual Budget approximately $20,000
Contact City of Tucson - Environmental Services 520-791-3175
Description The Ryan Airfield Landfill is located in southeastern Avra Valley at the southeast end of the airfield’s runway system. The landfill received residential and commercial refuse from the airfield and homes, farms and businesses located in the surrounding Avra Valley area. The property is owned by the City of Tucson and is leased to the Tucson Airport Authority. Today the City inspects the landfill annually. There are no shallow landfill gas probes at the site because there are no nearby buildings.
Additional Info Based on a review of historical operational records and soil vapor and groundwater monitoring data collected from 2007 through 2009, this landfill is considered a low future environmental risk.
Activities Inspections
Last Update Thursday Jun 20, 2013
View this project on the Environmental Management Projects Map

Project Details

  • Updates
  • Pictures
  • Attachments


  • October-December
    The City is scheduled to conduct an annual closed landfill inspection. A report will be prepared following this inspection documenting the site conditions.
  • November 4, 2010
    The City completed the 2009 Groundwater and Soil Gas Monitoring Report. As discussed in this report, future soil vapor and groundwater monitoring was discontinued. Based on the trends of seven years of soil vapor data and three years of groundwater VOC data, the probability of impacts to the groundwater from this landfill is low. This report is available in the report/attachment section of this website.
  • 2006
    The City installed groundwater monitoring wells and began routine monitoring.
  • 2003
    The City installed deep soil vapor monitoring wells and began routine monitoring.