By Carrie Saldo
http://stream.publicbroadcasting.net/production/mp3/wamc/local-wamc-734398.mp3
Lenox, MA – There's a push by four conservation groups in the Berkshires to designate the PCB polluted upper Housatonic River an Area of Critical Environmental Concern. And WAMC's Berkshire Bureau Chief, Carrie Saldo, reports on why such a determination would be a first;