Good news for metro mammals; the New York City tap water is still safe to drink, according to a report card released yesterday by Riverkeeper and the Clean Drinking Water Coalition. The longstanding environmental advocacy group gives our water system A grades for reducing fecal coliform from waterfowl, managing stormwater runoff and waterborne disease risk assessment. High-five! But the city needs to do a better job of securing land around the Croton watershed in Westchester,......