Environmental Justice Enhancement I-4: Sample Projects South Coast Air Quality Management District
Introduction Example projects 1, 2 and 5 acre sites Existing building to be demolished –Assumed ½ size of site Commercial structure to be built –Assumed ½ size of site Assumed no operational impacts
Phases Demolition Clearing/grubbing Scraping/grading Trenching Building construction Architectural/asphalt paving/concrete paving Operation
Estimate Amount of Equipment Design plans Contractor estimates Similar projects Emission models (URBEMIS, EMFAC) Construction estimators (Richardson, RS Means, etc.) Manufacturer Information
Emission Estimation SCAQMD, EPA, CARB, OEHHA, CAPCOA methods and emission factors On-site and off-site sources Point source and fugitives Mobile and stationary sources
Site Preparation Phase Parameters VehiclesHours Rating (hp) Load (%) TripsLength Tractor/Loader/Backhoe Other Equip (Water Truck) Tractor/Loader/Backhoe Construction Worker Vehicles 520 Haul Trucks 820
Site Preparation Phase Emission Estimates COVOCNOxSOxPM10 Tractor/Loader/Backhoe Other Equip (Water Truck) Tractor/Loader/Backhoe Onsite (Haul Truck) Offsite (Construction Worker) Offsite (Haul Truck) Total Onsite Emissions Localized Significance Threshold Exceed Significance? NON/ANON/ANO Total Project Emissions Regional Significance Threshold Exceed Significance? NO N/ANO
1 Acre On-Site Emissions All Phases COVOCNOxSOxPM10 Demolition Site Preparation Grading Building Arch Coating and Paving Localized Significance Threshold Exceed Significance? NON/ANON/ANO
Conclusion Work in progress Input on methodology and additional examples from lead agencies and project proponents To be used in conjunction with Handbook