From the Proceedings of the 1976 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 29-May 1, 1976, Tucson, Arizona / Once Arizona sent National Guard troops to the Colorado River in an effort to counter California's claim on that River's water. Then, in following years, the farming interests dominated Arizona economy and politics. The farming interests promoted in their behalf the powerful Salt River Project, and the concept of groundwater as a property right. Over the years, agricultural power has held fast with only slight modifications in the basic groundwater law; this has inhibited the scientific assessment of Arizona's groundwater resources. Projections of the dire effects of groundwater policies first came from a few mavericks in the academic community. As facts have accumulated, these projections appear to be essentially correct. It is now evident that city, farm and industry can join to manage and conserve what is left of the dwindling water resource, or they can dry-up separately.

From the Proceedings of the 1976 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 29-May 1, 1976, Tucson, Arizona

From the Proceedings of the 1976 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 29-May 1, 1976, Tucson, Arizona / American legislative bodies and juries of laymen are founded on the concept that what a reasonable man would do is what will be done. In actuality the synergistic effects of prejudice, politics, and polarized language rarely allow this to occur. The result has been conflict of interest statutorily mandated on natural resource governing boards and a lack of expertise in the courtroom. Further contempt has developed between citizen and expert and between legislator and bureaucrat. I propose to explore the operative mechanism in the situation and discuss possible future roles for both citizen and expert as well as tools which could be utilized by them.

From the Proceedings of the 1976 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 29-May 1, 1976, Tucson, Arizona / It now appears that, at least for the near future, the only federal controls of weather modification will be the record keeping and reporting requirements of the National Oceanic and Atmospheric Administration. About two-thirds of the states have enacted cloud seeding laws to fill the regulatory void. These statutes, however, are quite varied and many of them are inadequate. Accordingly, there is a need for "suggested" or "model" state weather control legislation. In a project funded by the Office of Water Research and Technology and administered through the Arizona Water Resources Research Center, such a proposed law has been prepared. It delegates means of control over seeding to an administrative agency, authorizes governmental funding of operations, establishes procedures and criteria for professional licensing of cloud seeders, creates a system for regulation of projects through operational permits, requires record keeping and reporting, and sets standards for resolution of water rights and legal liability issues.

From the Proceedings of the 1976 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 29-May 1, 1976, Tucson, Arizona

From the Proceedings of the 1976 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 29-May 1, 1976, Tucson, Arizona / The North American Interstate Weather Modification Council was formed to coordinate intrastate, interstate and possible international weather modification activities. The main purpose of this organization is to achieve and maintain state and local control of such activities while endeavoring to attain a high degree of legislative uniformity and an effective information exchange mechanism. The need, goals and objectives of the newly created Council are summarized. A summary of the Council's progress at performing the purposes of the Council are presented in this paper. The potential use of this Council in the Southwest is described in relation to existing programs in weather modification in the area.

From the Proceedings of the 1976 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 29-May 1, 1976, Tucson, Arizona / A preliminary assessment survey, preparatory to a comprehensive ERDA sponsored watershed study, was conducted in the vicinity of Sheridan, Wyoming on the Tongue River and its major tributaries during the summer of 1975 to determine the extent and magnitude of aquatic environmental impacts induced by strip mining of coal at one major mine in the western Powder River Basin of Wyoming. Results of detailed physical and chemical analysis of mine discharge and ambient water quality of receiving streams were not conclusive, but suggest that water quality impacts of present mining activities in the area examinee' are small when compared to other apparent land use impacts observed upstream of the mine.

From the Proceedings of the 1976 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 29-May 1, 1976, Tucson, Arizona / Sabino Canyon Recreation Area, adjacent to Tucson, and a major water-based recreation complex within the Santa Catalina Mountains, Coronado National Forest, receives intensive recreational use. This natural water resource area with primary water contact activities was monitored for fecal coliform in accordance with U.S. Forest Service Regulation (FSM 2542.2). As part of a larger study, this report discusses the relationships between time, day, and location of sampling with fecal coliform bacterial concentrations in Sabino Creek. Analysis of Variance shows that fecal coliform concentrations were higher: 1) on Sunday than Wednesday, 2) at 4:00PM than 8:00AM or 12:00 Noon, and 3) in the lower section of the four miles of the study area. This research provides the U.S. Forest Service with baseline water quality data and a benchmark from which to continue an efficient water quality monitoring program.

A temperature-stratification model developed by the U. S. Army Corps of Engineers, Hydrologic Engineering Center, was used to predict the changes in the temperature profile of Lake Havasu on the Colorado River near Parker, Arizona, that may occur with the withdrawal of Central Arizona Project (CAP) water in the 1980's. This quantified change in temperature-dependent density stratification was calculated using maximum withdrawal conditions to accentuate and expose any major changes which could be potential problems. Inputs for this program include monthly evaporation and precipitation, monthly average air temperature, solar radiation at the top of the atmosphere, water inflow amount and temperature, water outflow amount and location, water temperature profiles, and physical reservoir data. In the calibration of the model, the five coefficients were found to differ slightly from regional coefficients established by the Hydrologic Engineering Center, Davis, California, and coefficients established in a previous study. End of month temperature profiles were then generated for average meteorological conditions, both with and without maximum CAP flow. The computed results indicate that the stratification changes will be of low magnitude.

From the Proceedings of the 1976 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 29-May 1, 1976, Tucson, Arizona