Ryland Landfill

To ensure the safety of the public and the environment through site inspections.

At the Santa Cruz River, north of Ajo Way

Waste Acreage

Operation Dates

Monitored Only Site

Groundwater Protection Project

Annual Budget
approximately $20,000

City of Tucson - Environmental Services 520-791-3175


The Ryland landfill is generally located 0.5 mile north of Ajo way between the Santa Cruz River and Interstate 19. This landfill was used for the disposal of municipal solid waste. The landfill is owned and maintained by the City of Tucson. Today the City inspects the landfill annually to correct erosion and other potential issues.

Additional Info
Based on a review of the historical operations data, and eight years of soil vapor and groundwater monitoring data, this landfill is a low future environmental risk.


Last Update
Monday Jul 1, 2019

View this project on the Environmental Management Projects Map

Project Details


  • October-December
    The City is scheduled to conduct an annual closed landfill inspection. A report will follow this inspection, documenting the site conditions.
  • June 21, 2010
    The City completed the 2009 Groundwater and Soil Vapor Monitoring report. As discussed in this report, monitoring of the three groundwater monitoring wells and one deep nested soil vapor monitoring well at the landfill was discontinued. Soil vapor and groundwater monitoring data collected from 2001 -2009 indicated that there were no impacts to the groundwater due to the landfill. The City will reevaluate the landfill conditions annually to determine if soil vapor and groundwater monitoring is necessary. The report is available at the report/attachment section of this website.
  • 2000-2002
    The City installed four groundwater and one deep soil vapor monitoring wells and began routine monitoring.


  • View of gate at Ajo Way for entrance to landfill property.
  • Overlooking landfill towards A-Mountain.
  • Overlooking landfill towards the north, towards downtown Tucson.


  • 2015 Annual Landfill Inspection Report
    This report documents the annual landfill inspection activities conducted at Ryland Landfill on September 29, 2015.
  • Annual Monitoring Report for 2009
    Annual groundwater and soil vapor monitoring report for the January - December 2009 period. The text, tables, and figures to the report are available at this link. For the full document, contact the Environmental Services office at 520-791-3175.