KCBS_740 SAN FRANCISCO (KCBS) — The U.S. Postal Service in San Francisco is being recognized for its efforts to go green after cutting the amount of waste it sends to landfills by as much as 70 percent over just two years.

Workers have been doing a better job of putting extra shrink wrap and cardboard boxes at its sorting center on Evans Avenue to good use by recycling.

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“I would say approximately five to six 45-foot trailers full, so there is quite a bit,” Ted Chin, manager at the Evans Avenue facility said.

Chin says being green also helps the bottom line.

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“We’re saving over $200,000 per year in just what we’re avoiding for hauling, and going into the landfill,” Chin said.

The improvement comes after a 2014 audit showing that the local postal service was sending too many recyclable items to the landfill. Since then, about 4,500 postal service workers have been trained on the importance of recycling.

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The Environment Commission voted to commend the San Francisco District for their efforts.