Concerns about the effect of Central Valley growth and development on natural resources and possible solutions to lessen the impact is the theme of a legal conference to be held Saturday, Feb. 25, at the University of California, Davis. "California's Great Central Valley: Balancing Growth and the Environment in the 1990s and Beyond" is the title of the annual conference this year. The UC Davis law school and the UC Davis Environmental Law Society are the sponsors of the daylong conference that begins at 8 a.m. in the law school. Gerald Haslam, author of "The Great Central Valley: California Heartland," will give the inaugural address titled "The Changing Face of the Valley and its Future," and Felicia Marcus, regional U.S. Environmental Protection Agency administrator, will give the luncheon keynote address, titled "Challenges to the Next Generation of Environmental Regulators." Other speakers during the day will include representatives from the federal Bureau of Reclamation, Yolo County, Caltrans, City of Davis, Pacific Legal Foundation and National Audubon Society, and UC Davis faculty members. Issues to be discussed will include water rights, air quality constraints on growth, transportation, regional and local planning, and the tensions between private property rights and public policy obligations. Conference registration begins at 8 a.m.; the conference is expected to conclude after 4 p.m. Conference-only fees are $115 for attorneys seeking minimum continuing legal education credit, $15 for the general public and $5 for students. Lunch costs an additional $10 per person and reservations must be made by Feb. 18.