On Thursday, June 8, 2006, L.A. County Sup. Gloria Molina provided the Irwindale Chamber of Commerce with an overview of the many ways that L.A. County government impacts the regional business climate -- from enhancing transportation arteries and providing public health services to housing the homeless and offering treatment to the mentally ill.  The City of Irwindale sits at an important nexus of the San Gabriel Valley, with access to three freeways and scores of recreational opportunities -- including the Santa Fe Dam and the San Gabriel River.  Over the coming decades, as many of Irwindale's mining properties are reclaimed, the potential for new housing and commercial options should boom.  At the luncheon, Sup. Gloria Molina and members of the Irwindale Chamber of Commerce also celebrated several public works projects that materialized via a city-county partnership.  These include the widening of Los Angeles Street over the Big Dalton Wash and the reconstruction of a nearby roadway as well as the installation of a new traffic signal at the intersection of Irwindale Avenue and Edna Drive.