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- All Subjects: Boulder Canyon Project (U.S.) -- History
- All Subjects: Fills (Earthwork)
- Creators: Archives and Special Collections, Arizona State University Libraries
- Creators: Battelle Memorial Institute. Technology Partnership Practice
This document has been prepared to fulfill the requirements for a hydraulic study for the Cave Creek Landfill operated by Maricopa County.
Joseph Simons to Carl T. Hayden re: Imperial Valley farmers support for Boulder Canyon Project, May 25, 1926.
Carl T. Hayden to George W. P. Hunt re: Swing-Johnson Bill and three state meeting in Los Angeles, December 11, 1926.
Petition of residents of Graham County, Arizona opposed to the "Swing-Johnson Boulder Canyon Dam Bill," 1/14/1927.
Why I oppose the approval of the Colorado River Compact, by Geo. W.P. Hunt, Governor of Arizona, 1923?
Report of Colorado River Board on the Boulder Canyon Project to the Secretary of the Interior, 11/24/1928.
This addendum to the 2005 work plan identifies how additional assessment of groundwater features and contamination at Cave Creek Landfill will be conducted.
This Additional Site Characterization Work Plan presents a strategy for collecting site characterization information at the closed Maricopa County Cave Creek Landfill to support ongoing remedial action planning for trichloroethene-impacted groundwater underlying the site. The Work Plan supplements previous remedial investigation work plans prepared to characterize the nature and extent of site contamination.
To evaluate whether VOCs are migrating out of the landfills into the vadose zone, a soil vapor survey of the soil beneath the landfill bases was performed. Permanent vapor monitoring probes were installed and then sampled twice for VOCs. Groundwater beneath the landfills has been impactd by VOCs, namely TCE, DCE, and toluene.
During the period of 1965 through 1984, Maricopa County operated a landfill leased from the U.S. Bureau of Land Management. In 1982 the County leased a separate parcel from the State for the development of a new landfill. The landfill stopped accepting waste in 1998.