Rodrigo Silva de Paula calls himself a "water man": he spends about 330 days a year in the ocean teaching paddle boarding. But high E. coli levels in some of Vancouver's beaches are testing his patience. "It is frustrating because it is not the first time it has happened," said the 44-year-old who lives in Vancouver. Silva de Paula is one of many residents calling on the city to do more to keep beaches safe from the bacteria.