Somerville doesn’t have a lot of ballfields. One of them, Lincoln Park, is out of commission while it’s renovated. Now another, Conway Field, has been closed off. Today, I went to a Parks and Recreation meeting when the city and its consultants told the public what happened: Soil testing conducted in preparation for the proposed renovation of revealed PCB contamination in the soil. It seems to be me that the city is taking the right steps in handling the situation. But, to be clear, there were many in the audience who were unhappy with how long it took the city to even start the renovation process.