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Lower Arkansas River Comprehensive Data Base and Data Assessment

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Lower Arkansas River Comprehensive Data Base and Data Assessment

Study Area: Lower Arkansas River Basin downstream from the vicinity of Canon City, Colorado to the Kansas state line in Bent, Crowley, Otero, Prowers, and Pueblo Counties
Period of Project: November 2001-September 2002
Project Number: CO432
Project Chief: David W. Litke
Cooperator: Colorado Department of Public Health and the Environment

BACKGROUND:

Portions of the Arkansas River in Colorado and Kansas have been included on those State’s 303(d) Lists of Impaired Waters. As a result, the States have committed to work jointly to adopt standards and to identify and implement management strategies to reduce constituent concentrations and loads. Available ground-water and surface-water quality data need to be compiled so that stakeholders can adequately assess factors that have affected historic and current water-quality.

Targeted constituents to include in the data base are:

• total dissolved solids,
• specific conductance,
• salinity,
• pH,
• water temperature,
• dissolved oxygen,
• sulfate,
• other major ions, uranium, selenium, and nutrients.

Ancillary data sets, such as streamflow information and ground-water levels, and selected GIS (Geographic Information System) digital data sets also need to be compiled and included in a data base.

OBJECTIVES:

• Inventory and compile into a single data base available water-quality information and related ancillary environmental data for the area area of the Arkansas River alluvial valley aquifer.