related tags: 2F6BBC 685C68 6E566D 7C9283 828C85 9AA8A6 9DB8CE 9EA5A4 A9B7C2 booms canal cleanup coalgasificationwaste colonialgas contamination december152009 environment lowell manufacturedgasplant massachusetts mgp product release remediation surfacewater 2009 527099 30028829