hoffman arizona

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Published on December 30, 2007

Author: Pravez

Source: authorstream.com

Introduction to USGS Arizona Program and Hydrology :  John Hoffmann Introduction to USGS Arizona Program and Hydrology USGS Geology Mapping Biology Water Water-Science Centers USGS Water-Science Center :  USGS Water-Science Center Physical Setting Offices, staff, funding Hydrology Programs Laws influencing programs Example programs AZWSC Organization and Staff:  AZWSC Organization and Staff AZWSC Funding, FY06:  AZWSC Funding, FY06 Total Funding Estimate: $10 million Cooperators } Slide5:  The importance of understanding Arizona’s water resources T O F T O T A L U . S . P O P U L A T I O N POPULATION IN SOUTHWEST PERCENT OF U.S. POPULATION Slide7:  Importance of Ground-Water to the West Percentage of drinking water supplied by ground water Ground-water resources of Arizona:  Ground-water resources of Arizona Slide10:  Alluvial basins (Basin and Range physiographic province) 72 basins—primary source of ground water; 900 million acre-ft Filled with sediments ranging from a few thousand to 10,000 ft thick Basins categorized to allow transfer of information and allow investigators to make predictions about the impacts of future development within each group Note: Mountain ranges surrounding the basins are crystalline and yield little to no water Slide11:  SPRINGS Low- permeability rocks Flow system conceptual model: Colorado Plateau SPRINGS Influence of Laws on USGS AzWSC Program (Melcher):  Influence of Laws on USGS AzWSC Program (Melcher) Colorado Rover Compact, 1922 CR Storage Project Act, 1956 Supreme Court Decree Act, 1956 Grand Canyon Protection Act, 1992; National Environmental Policy Act, 1969; 18 others Endangered Species Act, 1973 Arizona Groundwater Management Act, 1980/Rural Watershed Initiative Nuclear Water Policy Act, 1982 Clean Water Act, 1989 Section 321 of the Defense Authorization Bill, 2004 Title II of Yavapai County land Exchange Bill, 2005 Transboundary Aquifer Bill, 2006 Lower Colorado River Decree Accounting Project Grand Canyon Sediment transport Project, C aquifer Project Rural Watershed Investigations Aquifer Storage an Subsidence Project Death Valley Regional GW Flow Model Urban Runoff San Pedro River Verde River Watershed Border aquifers Law Program Water-management related Slide14:  Aquifer-Storage Change and Subsidence Monitoring Stations in the TAMA Directed by Arizona ground-water law (Arizona Groundwater Management Act, 1980) to attain an annual balance between ground-water withdrawals (Qout) and recharge (Qin) by the year 2025 Qin = Qout ΔStorage = 0 Qin – Qout= ΔStorage Slide15:  Volume of Aquifer Drained Aquifer Storage Change Specific Yield × Water Table After Pumping Aquifer Storage Change Slide16:  g = -kDx/mass Dx Gravity The simplest type of gravimeter essentially measures the extension of a spring attached to a control mass. unconfined aquifer Δ water table before pumping water table after pumping Δ Slide17:  -60,000 acre-ft ~0.4 ft per year Storage Change in a portion of the Tucson Basin Spring 2005 – Summer 2006 Qin – Qout= ΔStorage Slide21:  Determine the Effects of Ground-Water Overdraft on: Aquatic Communities Riparian Areas Endangered Species Slide22:  Theoretical capture by pumping for 50 years Upper San Pedro Basin in SE Arizona Slide23:  Introduction to USGS Arizona Program and Hydrology Questions? Next up: Jim Leenhouts--San Pedro James Callagary—Geophysical tools

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