Prominent Sonoma County wine executive Hugh Reimers, who last month abruptly left as president of Foley Family Wines, faces allegations that his grape growing company has violated regional, state and federal water quality laws for improperly clearing land near Cloverdale to build a vineyard. The North Coast Regional Water Quality Board accused his Santa Rosa vineyard management company, Krasilsa Pacific Farms, of violations of the water board’s local water rules, the California Water Code and the federal Clean Water Act for clearing and grading 140 acres. The water quality board concluded the work on a section of Krasilsa Pacific’s more than 2,000-acre property was done without applying or obtaining the necessary permits required by the county to operate a vineyard.