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Physical Sciences and Mathematics Commons

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Articles 1 - 4 of 4

Full-Text Articles in Physical Sciences and Mathematics

Natural And Anthropogenic Forces Acting On A Forest Lake, M. C. Whiteside, M. B. King, K. Pulling Jan 1989

Natural And Anthropogenic Forces Acting On A Forest Lake, M. C. Whiteside, M. B. King, K. Pulling

Journal of the Minnesota Academy of Science

ABS1RACT-Lak~ Itasca, Minnes~ta is located within one of the more popular state parks. Since the turn of the centmy, loggmg, fire protection, and development within the watershed have put modest pressures on the ecosystem. The presence of the University of Minnesota's Biological and Forestry Station on the lake has encouraged research in this region. Consequently there are numerous research reports and papers which are available _at the station's library. We examined data collected over the past 25 years to see if we could detect changes ~~ the lake. We detected no changes in phytoplankton, macrophyte, zooplankton, or zoobenthos com~urnues, but …


County-Based Priority Assessment Methodology For Phasing Of Wellhead Protection Programs, H. O. Pfannkuch, M. E. Campion, D. C. Mccaa, J. M. Palenberg Jan 1989

County-Based Priority Assessment Methodology For Phasing Of Wellhead Protection Programs, H. O. Pfannkuch, M. E. Campion, D. C. Mccaa, J. M. Palenberg

Journal of the Minnesota Academy of Science

ABSTRACT-Setting priorities to schedule and implement wellhead protection programs for municipal and community drinking water supplies is presented in the framework of a general risk assessment approach. This includes a hazard identification procedure representing the likelihood of contaminants being released to the surface environment, a hydrogeologic vulnerability assessment representing the risk of contaminants entering the groundwater supply, and an impact assessment, strongly linked to the population at risk. A methodology was developed to aggregate information on a county basis for Minnesota. The resulting composite risk index map shows a number of counties in the central part of the state roughly …


The Legislative Commission On Minnesota Resources Involvement In Water Resource Programs, John Velin, George Orning Jan 1989

The Legislative Commission On Minnesota Resources Involvement In Water Resource Programs, John Velin, George Orning

Journal of the Minnesota Academy of Science

ABSTRACT :--The Legislative Commission on Minnesota Resources (LCMR) has funded over $32 million worth of projects m three water-related areas since 1963. The authors describe the process the Commission uses to allocate money and summarize the general nature and accomplishments of many of the water projects.


Interbasin Water Transfers: An Economic Panacea Or A Political Ploy?, K. William Easter, Nir Becker Jan 1989

Interbasin Water Transfers: An Economic Panacea Or A Political Ploy?, K. William Easter, Nir Becker

Journal of the Minnesota Academy of Science

ABSTRACT-New concern about the open access nature of the Great Lakes was sparked by the 1982 Sporhase Supreme Court Decision which limited states' power to prevent interbasin water transfers and was intensified by the 1988 drought in the Midwest. In response to the court decision, the Great Lakes Charter was adopted which established a set of management rules for new interbasin water transfers and other consumptive water uses. However, not all Great Lakes states have implemented the Charter provisions and, even if they did, it is not clear that the Charter objectives could be reached. The big losers from a …