Laserfiche WebLink
<br />Legacy Sunflower Apartments Page 42 <br />Mitigated Negative Declaration – March 14, 2019 <br /> <br />Paving <br />On-Site2 1.12 10.84 12.26 0.02 0.58 0.53 <br />Off-Site3 0.08 0.05 0.61 0.00 0.23 0.06 <br />Subtotal 1.20 10.89 12.87 0.02 0.80 0.59 <br />Architectural <br />Coating <br />On-Site2 51.34 1.53 1.82 0.00 0.09 0.09 <br />Off-Site3 0.22 0.13 1.64 0.01 0.61 0.16 <br />Subtotal 51.56 1.66 3.46 0.01 0.70 0.26 <br />Total for overlapping phases4 56.27 39.32 43.79 0.10 6.11 2.87 <br />SCAQMD Thresholds 75 100 550 150 150 55 <br />Exceeds Thresholds? No No No No No No <br />(1) Source: CalEEMod Version 2016.3.2 <br />(2) On-site emissions from equipment operated on-site that is not operated on public roads. On-site grading and site <br />preparation PM-10 and PM-2.5 <br /> emissions show mitigated values for fugitive dust for compliance with SCAQMD Rule 403. <br />(3) Off-site emissions from equipment operated on public roads. <br />(4) Construction, painting and paving phases may overlap. <br /> <br />Construction Related Local Impacts <br /> <br />Construction-related air emissions have the potential to exceed both State and Federal air quality <br />standards in the project vicinity, even though the pollutant emissions may not be significant and have a <br />regional impact to the South Coast Air Basin. The project is analyzed for potential local air quality <br />impacts associated with construction-related fugitive dust and diesel emissions, toxic air contaminants <br />and construction-related odor impacts. <br /> <br />Local Air Quality Impacts from Construction <br /> <br />The SCAQMD published a “Fact Sheet for Applying CalEEMod to Localized Significance Thresholds”5 <br />(LST). CalEEMod calculates construction emissions based on the number of equipment hours and the <br />maximum daily disturbance activity possible for each piece of equipment. As shown in Table 6, the <br />maximum number of acres disturbed in a day would be three acres during project grading. <br /> <br />Table 6 <br />Maximum Number of Acres Disturbed Per Day <br />Activity Equipment Number Acres/8hr-day Total Acres <br />Demolition Rubber Tired Dozers 2 0.5 1 <br />Excavators 3 0.5 1.5 <br />Total for phase - - 2.5 <br />Site Preparation Rubber Tired Dozers 1 0.5 0.5 <br />Tractors/Loaders/Backhoes 2 0.5 1 <br />Total for phase - - 1.5 <br />Grading <br />Excavators 1 0.5 0.5 <br /> <br />Rubber Tired Dozers 1 0.5 0.5 <br />Graders 1 0.5 0.5 <br />Tractors/Loaders/Backhoes 3 0.5 1.5 <br />Total for Phase - - 3 <br />Source: South Coast AQMD, Fact Sheet for Applying CalEEMod to Localized Significance Thresholds, 2011b. <br /> <br />5 South Coast Air Quality Management District 2011b. <br />6-64