The generation of electrical power is a growth industry in Arizona, with 19 power plants proposed for various areas of the state. The surge in the number of power plants wanting to operate within Arizona is a relatively recent occurrence. The movement began in the fall of 1999 when a power plant was proposed for the Kingman area and continues with Nogales and Vail mentioned as possible future sights. One official remarked that Arizona promises to be a hub for power plants.

Work continues as researchers seek additional information about a series of prehistoric irrigation canals recently discovered along the Santa Cruz River in Tucson that include the oldest canals ever found north of Mexico. Radiocarbon dating on charcoal fragments found in the canals and on plant remains in the different layers of the site indicate the series of canals were constructed between about 3,000 and 2,000 years ago

Early in the Governor's Water Management Commission's review of the Arizona Groundwater Management Act it was noted that the "bucket had holes in it." This was the metaphor of choice adopted by participants who believed that various legal exemptions in the GMA allowed unrestricted groundwater pumping. They said such exempted pumping undermined the GMA goals of the Active Management Areas, particularly safe yield in the Phoenix, Tucson and Prescott AMAs.

A recent court decision prohibits the Arizona Department of Water Resources from enforcing gallons per capita per day standards, a key strategy for regulating municipal water use. A Superior Court ruling stated that the provision of Arizona's Groundwater Management Act's Second Management Plan by which DWR imposes maximum GPCD requirements "is vacated and set aside because it fails to address water utilization by end users." The judge also ordered DWR to pay plaintiff's attorneys' fees of $137,900.

In a case that bristles with far-reaching implications, the Navajo Nation has sued the federal government in an effort to obtain recognition of tribal claims to Colorado River water. A consideration of such rights could result in a rethinking of current state and federal water management policies and practices.

If, in fact, there were any doubts about the matter, negotiations now underway to settle Navajo water right claims could serve as a case study of the intricate and complex workings of water law. What further complicates the issue in this instance is that the area of the Navajo Nation to receive water from whatever settlements are worked out is located close to the boundary between the upper and lower Colorado River basins. The Law of the River, which determines the management and use of Colorado River water, including its allocation between basins, becomes an issue to be reckoned with.

Snow might be one of the ways to differentiate the sensibilities of hydrologists from others not sharing their professional interest. Whereas non-hydrologists may see the photo at right as a lovely snow scene hydrologists viewing the winter landscape may think of the problems of measuring snowpack to determine spring runoff.

The first World Water Monitoring Day will be held Oct. 18. From Sept. 18 to Oct. 18, citizens throughout the world will be monitoring the quality of their local watersheds and entering the results into an international database. World Water Monitoring Day is intended as an educational opportunity for watershed leaders, educators and trained volunteers throughout the world to help citizens better understand the workings of a watershed.

The quest to discover signs of water on Mars continues, with Opportunity, one of the two Mars Exploration Rovers, sending back images of the planet soil. At bottom left of the photo at right is a magnified look at martian soil showing spherical pebbles among the mix of particles. One of the explanations to account for the pebbles' round shape is accretion under water. A mineral map of Opportunity's surroundings offered a more significant sign of water. It indicated concentrations of a coarse-grained hematite. Hematite usually forms in association with liquid water.

When most people think of drought they think of possible personal inconveniences. Should they forego their Lake Powell vacation? Will watering vegetation face restrictions? Will water bills go up? Drought and dry conditions also affect Arizona's wildlife.