USA that materials should be sourced as closely as possible to the point of use , however when going for LEED Gold ( and Pomona won ’ t accept anything less ) there are a lot of other considerations . So , very efficient mechanical systems , water efficient fixtures , on-site water conservation and eco-landscaping features have been specified . Smardt chillers for climate control are a case in point : “ They are not the cheapest , but they are the best for our purposes , and in every case that has been our criterion .” Trash and surplus materials are recycled and nothing goes to landfill : perhaps the longest supply chain route is the FSC-certified timber , which comes all the way from Canada , but that ’ s because you need the hard northern winters to grow lumber dense enough for construction .
LEED Gold being a general construction standard in the USA , there are further stringent standards to meet when designing
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