Irvington Landfill

Objectives
To ensure the safety of the public and the environment by monitoring, managing, and controlling landfill gas and groundwater quality.
Location
9900 E. Irvington Rd.
Waste Acreage
12.8
Operation Dates
1978-1988
Status
Monitored Only Site
Type
Groundwater Protection Project
Annual Budget
Approximately $50,000
Contact
City of Tucson - Environmental Services 520-791-3175
Description
The Irvington Landfill is located on the south side of Irvington Rd a quarter of a mile west of Houghton Rd. This landfill was used for the disposal of municipal solid waste. Today the City monitors fourteen shallow landfill gas probes, one nested deep soil vapor well, and four groundwater monitoring wells around the landfill as part of the Arizona Department of Environmental Quality’s (ADEQ) Aquifer Protection Permit (APP). The landfill is owned and maintained by the City of Tucson.
Additional Info
Monitoring has indicated the landfill has not impacted groundwater quality.
Activities
Inspections, Landfill Gas Monitoring, Groundwater Monitoring
Last Update
Wednesday Jun 8, 2022

January 27, 2016
The City submitted the annual report to ADEQ covering the January - December 2015 period. The report discusses the landfill gas, groundwater, and deep soil vapor monitoring and site inspections, and is available in the Attachments section of this website.

January, April, July, & October
The City conducts quarterly landfill gas monitoring at perimeter probes during these months every year to monitor for methane migration at the property boundary.

March, June, September, & December
The City is scheduled to conduct quarterly closed landfill inspections. Reports will be prepared documenting site conditions.

January 26, 2015
The City submitted the annual report to ADEQ covering the January - December 2014 period. The report discusses the landfill gas, groundwater, and deep soil vapor monitoring and site inspections, and is available in the Attachments/Reports section of this website.

August 27, 2010
ADEQ granted approval of the landfill closure construction certification report. This date marks the beginning of the 30-year post closure care period.

November 2009-July 2010
The City closed the landfill according to Federal and State regulations. Closure included construction of the landfill cover for the landfill consisting of a graded earthen cap and landscaping to prevent erosion.

2002
The City installed a deep soil vapor monitoring well and began routine monitoring.

1995-1998
The City installed shallow landfill gas monitor probes to monitor methane concentrations between the landfill and nearby homes and began routine monitoring.

Picture of gate entrance into Irvington Landfill.

Picture showing new vegetation planted as part of the landfill closure. Landfill in background.

Picture of landfill slope with storm water control channels.

ADEQ Letter Responding to 2013 Annual Monitor Repo

Letter from the Arizona Department of Environmental Quality (ADEQ) in response to the 2013 Annual Report for Irvington Landfill. ADEQ approves to the City's request to decrease post-closure groundwater monitoring from annual to biennial (every two years) with future events occurring on even numbered years (2016, 2018, et).

2018 Annual Report

Report documents groundwater and landfill gas monitoring and post closure care activities during January - December 2018. The text, tables, and figures are available at this link. For additional information contact the Environmental & General Services Department at 520-791-3175.

2019 Annual Report

Report documents environmental monitoring and site inspection activities conducted during January - December 2019. The text, figures, and appendices are available at this link. For additional information contact the Environmental & General Services Department at (520) 791-3175.

ES Projects