According to guidebook 'Excavated soil and land-clearing debris do not contribute to this credut', does it mean soil is not counted as construction waste, or non-recyclable waste (but still counted in the denominator as total quantity of waste)? If the waste generated in the foundation stage is mainly rock and soil, and the description in the receipt issued by public fill is "mixed rock and soil", shall we count this quantity as recyclyed waste as a whole, or give a proportion, say 50% rock 50% soil, then count 50% of that quantity as recycled waste? Thanks
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Allison Beer McKenzie
Architect, Director of SustainabilitySHP Leading Design
LEEDuser Expert
646 thumbs up
July 8, 2010 - 10:11 am
Vivian- Assuming that all of the mixed soil/rock you are talking about is from excavation (no waste from concrete or other construction materials), I would count all of it as excavated soil and exclude it from the calculation entirely (don't include it in the denominator either). My interpretation is that excavated material is meant to be excluded from the calculation, as it does not meet the definition of "construction and demolition debris" and the use of the word "soil" was a generalization. There are several CIRs from earlier LEED rating systems backing up this interpretation and excluding materials such as bedrock from the calculation.
Vivian Wan
50 thumbs up
July 8, 2010 - 11:10 pm
Thanks Allison for your reply. So does it mean that only waste to landfill and incineration facilities are counted in this credit, those to public fill is entirely excluded from the calculation?
Allison Beer McKenzie
Architect, Director of SustainabilitySHP Leading Design
LEEDuser Expert
646 thumbs up
July 9, 2010 - 8:25 am
Vivian- All waste that meets the definition of "construction and demolition debris" needs to be included in the calculation no matter where it goes- landfill, incineration or private fill. The soil (including the combined rock) should not be included not because of where it's going, but because it doesn't meet the definition of "construction and demolition debris". Hope that helps clarify!