The debate over coastal cattle and dairy ranching has revived as unsafe levels of fecal bacteria continue to contaminate waterways in the Point Reyes National Seashore. Park data from a year of testing concluded that E. coli exceeded health standards in roughly 31% of the samples collected from 24 sites, including at Kehoe Beach and Drakes Bay. The data were presented to the California Coastal Commission on Thursday as part of a first annual update on the National Park Service’s water quality management plan to curb water contamination caused by the ranching. Commissioners and environmentalists said they want a resolution, with many calling for a halting or reduction of coastal ranching.