WSPC12502 (2) - Laserfiche WebLink

Home Browse Search

000578 22 PHYSICAL WATER RESOURCES Goal: To operate Glen Canyon Dam for water supply and water quality consistent with existing law and policy. Definition: Water resources include all aspects of water quantity and quality. The "Law of the River" directs the operations of Glen Canyon Dam including monthly and annual release patterns and reservoir contents and elevations. Although of more recent concern, water quality as it relates to changes over time is of specific concern. MANAGEMENT OBJECTIVES. STAKEHOLDER INFORMATION NEEDS. MANAGEMENT ACTIONS MO 1: The Secretary shall Operate Glen Canyon Dam in a manner fully consistent with the Record of Decision and subject to the "Law of the River," including but not limited to the following: Grand Canyon Protection Act of 1992, the Colorado River Compact, the Upper Colorado River Basin Compact, the Water Treaty of 1944 with Mexico, the decree of the Supreme Court in Arizona vs. California, and the provisions of the Colorado River Storage Project Act of 1956, and the Colorado River Basin Project Act of 1968 that govern allocation, appropriation, development, and exportation of the waters of the Colorado River Basin. IN 1.1 Annually collect and report Glen Canyon Dam flow release information. MO 2: Maintain water quality at levels appropriate to support physical, biotic, and human resource needs of various ecosystems downstream of Glen Canyon Dam as mandated by the Grand Canyon Protection Act and incorporated into the Record of Decision. IN 2.1 Monitor water quality, composition and temperature and compare to applicable standards. IN 2.1 a Quantify current selenium levels in water discharged from Glen Canyon Dam. Determine how selenium concentrations are affected by dam operations. IN 2.1 b Determine/quantify the dynamics of major cations, anions and nitrate/phosphate ratios resulting from dam operations. Revised 6-10-98