Marcus Tiger, center, Alfredo Guzman, right, and Maurice Lige, left, assemble compost bins and get them ready for delivery at the transfer station in San Francisco, Calif., Monday, November 21, 2011.  Recology is about to hit one million tons of compost since they began in 1996.   Ran on: 11-22-2011 Recology workers Maurice Lige (left), Marcus Tiger and Alfredo Guzman assemble compost bins for delivery at the transfer station in S.F. The firm expects to hit the 1-million-ton mark with collections today. Photo: Sarah Rice, Special To The Chronicle
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