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Environmental Justice Enhancement I-4: Sample Projects South Coast Air Quality Management District.

Published byBelen Brookes Modified over 9 years ago

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Presentation on theme: "Environmental Justice Enhancement I-4: Sample Projects South Coast Air Quality Management District."— Presentation transcript:

1 Environmental Justice Enhancement I-4: Sample Projects South Coast Air Quality Management District

2 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

3 Phases Demolition Clearing/grubbing Scraping/grading Trenching Building construction Architectural/asphalt paving/concrete paving Operation

4 Estimate Amount of Equipment Design plans Contractor estimates Similar projects Emission models (URBEMIS, EMFAC) Construction estimators (Richardson, RS Means, etc.) Manufacturer Information

5 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

6 Site Preparation Phase Parameters VehiclesHours Rating (hp) Load (%) TripsLength Tractor/Loader/Backhoe157746.5 Other Equip (Water Truck) 1116162.0 Tractor/Loader/Backhoe127746.5 Construction Worker Vehicles 520 Haul Trucks 820

7 Site Preparation Phase Emission Estimates COVOCNOxSOxPM10 Tractor/Loader/Backhoe 2.690.543.940.362.09 Other Equip (Water Truck) 2.000.302.400.200.15 Tractor/Loader/Backhoe 1.070.211.580.140.12 Onsite (Haul Truck)0.080.010.240.00 Offsite (Construction Worker)2.200.060.200.00 Offsite (Haul Truck)1.790.489.280.12 Total Onsite Emissions5.841.068.150.702.37 Localized Significance Threshold 32.00-11.00-3.00 Exceed Significance? NON/ANON/ANO Total Project Emissions9.831.6017.630.832.61 Regional Significance Threshold 550.0075.00100.00-150.00 Exceed Significance? NO N/ANO

8 1 Acre On-Site Emissions All Phases COVOCNOxSOxPM10 Demolition10.365.3410.901.422.48 Site Preparation5.841.068.150.702.37 Grading4.390.8510.011.032.60 Building6.161.169.810.820.45 Arch Coating and Paving 3.2471.7310.910.960.50 Localized Significance Threshold 32.00-11.00-3.00 Exceed Significance? NON/ANON/ANO

9 Conclusion Work in progress Input on methodology and additional examples from lead agencies and project proponents To be used in conjunction with Handbook

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