BOSTON — The Coast Guard is monitoring the cleanup of approximately 11,000 gallons of asphalt spilled in the Mystic River, in Everett, Massachusetts, at approximately 3:30 p.m., Thursday. During an offload of asphalt from the 439-foot Palanca Singapore at the Exxon terminal in Everett, a hose failure resulted in approximately 11,000 gallons of asphalt entering the water. Exxon has contracted Clean...