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- Resource Type: Text
Amendments to the bill establishing the Grand Canyon a National Monument. Circa 1908.
Letter from W. W. Bass to Carl Hayden requesting the boundaries of the park be reconsidered as a large portion of the land is suitable for mining and farming.
Letter from Carl Hayden to W. W. Bass concerning the passing of the national park bill. Hayden states that he will try to make the bill as advantageous to Arizona miners and farmers as possible, but the land will either remain as a national monument or become a national park. A postscript is added concerning the land allocated for the Havasupai Tribe.
Each year, information is requested from cities, towns, private water companies, and water improvement districts in an effort to summarize and document water conservation activities implemented within Active Management Areas.
The Groundwater Cleanup Task Force has examined various aspects of Arizona's cleanup programs as well as similar programs in other states and on the federal level. Its members have debated these issues in detail, and present this report as a summary of the Task Force's work and recommendations.
The model was developed as a tool to better understand the complex and interdependent stream-aquifer system, and to provide guidance for the management of regional water resources. Water management topics relevant to the Santa Cruz AMA include bi-national water issues and the reliability of water supplies. This model was primarily calibrated over the recent effluent-dominated groundwater flow regime (1997-2002) because of the availability of high quality head, flow and pumping data. Thus, some model boundary conditions calibrated over recent periods may not necessarily be representative of pre-effluent conditions.
Provides an inventory of infrastructure resources in the Upper Santa Cruz subregion of Pima County.
Provides an inventory of infrastructure resources in the southeast subregion of Pima County.
Provides an inventory of infrastructure resources in the northwest subregion of Pima County.
Provides an inventory of infrastructure resources in the southwest subregion of Pima County.