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Project:LEC Lodi Project <br /> Dust from Wind Erosion-With and Without Mitigation <br /> Grading MRI factor of 0.011 tons/acre/month is based on 168 hours per month of construction activity. <br /> PM10 Emission Factor(ton/acre/month)a 0.011 Fact Sheet,4/26/2007. <br /> Project Site <br /> Duration(months): 2 Assumes 2 months of active grading. <br /> Site Acreage: 4.40 Assumes 100%of site is graded <br /> PM10 Emitted(tons): 0.10 <br /> TSP Emitted(tons)': 0.151 assume TSP is 64%PM10 <br /> Mitigated TSP Emitted(tons): 0.053 Assume 65%reduction in PM10 with watering thrice daily per SCAQMD CEQA Handbook(1993)Table 11-4 <br /> Laydown Areas(A through D) <br /> Duration(months): 1 Assumes one month to grade <br /> Site Acreage: 9.80 Sum of Laydown areas A,B,C,and D <br /> PM10 Emitted(tons): 0.11 <br /> TSP Emitted(tons)°: 0.168 Assume TSP is 64%PM10 <br /> Mitigated TSP Emitted(tons): 0.059 Assume 65%reduction in PM10 with watering thrice daily per SCAQMD CEQA Handbook(1993)Table 11-4 <br /> Gas Supply Line Trench <br /> Duration(months): 3.0 Assumes 3 months to construct pipeline <br /> Site Acreage: 1.212 Assumes a 4-ft wide trench <br /> PM10 Emitted(tons): 0.0400 <br /> TSP Emitted(tons)°: 0.0625 assume TSP is 64%PM10 <br /> Mitigated TSP Emitted(tons): 0.0219 Assume 65%reduction in PM10 with watering thrice daily per SCAQMD CEQA Handbook(1993)Table 11-4 <br /> Transmission Line Pole Hole <br /> Duration(months): 0.00 Assumes no transmission lines poles needed to connect <br /> Site Acreage: 0.000 <br /> PM10 Emitted(tons): 0.000 <br /> TSP Emitted(tons)°: 0.000 Assume TSP is 64%PM10 <br /> Mitigated TSP Emitted(tons): 0.000 Assume 65%reduction in PM10 with watering thrice daily per SCAQMD CEQA Handbook(1993)Table 11-4 <br /> Process Water Line Trench <br /> Duration(months): 0.0 Assumes on-site construction <br /> Site Acreage: 0.000 <br /> PM10 Emitted(tons): 0.000 <br /> TSP Emitted(tons)°: 0.000 Assume TSP is 64%PM10 <br /> Mitigated TSP Emitted(tons): 0.000 Assume 65%reduction in PM10 with watering thrice daily per SCAQMD CEQA Handbook(1993)Table 11-4 <br /> Sewer Line Trench <br /> Duration(months): 0.0 Assumes on-site construction <br /> Site Acreage: 0.000 <br /> PM10 Emitted(tons): 0.000 <br /> TSP Emitted(tons)°: 0.000 Assume TSP is 64%PM10 <br /> Mitigated TSP Emitted(tons): 0.000 Assume 65%reduction in PM10 with watering thrice daily per SCAQMD CEQA Handbook(1993)Table 11-4 <br /> Total Unmitigated TSP Emitted(tons) 0.382 <br /> Total Mitigated TSP Emitted(tons) 0.134 Assume 65%reduction in PM10 with watering thrice daily per SCAQMD CEQA Handbook(1993)Table 11-4 <br /> 'Emission Factor Source:Midwest Research Institute,South Coast AQMD Project No.95040,March 1996,Level 2 Analysis Procedure <br /> Conversion Factor Source:Bay Area Air Quality Management District(BAAQMD)BAAQMD CEQA Guidelines,Assessing the Air Quality Impacts of Projects <br /> and Plans.December 1999 <br /> Wind Blown Dust <br /> TSP Emission Factor(ton/acre/year) 0.38 Emission Factor Source:AP-42,Section 11.9 Western Surface Coal Mining Table 11.9-4,January 1995. <br /> Project Site <br /> Acres exposed 4.40 <br /> Duration(months) 22 Assumes 22 months of construction for Project site area after grading <br /> TSP Emitted for Site(tons): 0.307 Assumes 1/10th of the site is bare soil during 18 month construction period <br /> Mitigated TSP Emitted(tons): 0.107 Assume 65%reduction in TSP with watering thrice daily per SCAQMD CEQA Handbook(1993)Table 11-4 <br /> Laydown Areas(A through D) <br /> Acres exposed 0.000 Sum of 4 laydown areas is 8.99 acres but all these areas are covered with gravel or other material after grading <br /> Duration(months) 23 Assume 24 months for construction period(minus 1 month for grading) <br /> TSP Emitted for Site(tons): 0.000 <br /> Mitigated TSP Emitted(tons): 0.000 Assume 65%reduction in TSP with watering thrice daily per SCAQMD CEQA Handbook(1993)Table 11-4 <br /> Gas Supply Line Corridor <br /> Acres exposed 9.091 Assumes 2.6 mile pipeline to east of site and construction corridor is 30 feet along side of road <br /> Duration(months) 3 Assumes 3 months after excavating trench that permanent cover(i.e.,paving)is established <br /> TSP Emitted for Site(tons): 0.864 <br /> Mitigated TSP Emitted(tons): 0.302 Assume 65%reduction in TSP with watering thrice daily per SCAQMD CEQA Handbook(1993)Table 11-4 <br /> Transmission Line Pole Footprint <br /> Acres exposed 0.000 Assumes no new poles are needed to connect to existing T-line <br /> Duration(months) 0.0 <br /> TSP Emitted for Site(tons): 0.000 <br /> Mitigated TSP Emitted(tons): 0.000 Assume 65%reduction in TSP with watering thrice daily per SCAQMD CEQA Handbook(1993)Table 11-4 <br /> Process Water Line Corridor <br /> Acres exposed 0.000 Assumes on-site construction <br /> Duration(months) 0 <br /> TSP Emitted for Site(tons): 0.000 <br /> Mitigated TSP Emitted(tons): 0.000 Assume 65%reduction in TSP with watering thrice daily per SCAQMD CEQA Handbook(1993)Table 11-4 <br /> Sewer Line Corridor <br /> Acres exposed 0.000 Assumes on-site construction <br /> Duration(months) 0 <br /> TSP Emitted for Site(tons): 0.000 <br /> Mitigated TSP Emitted(tons): 0.000 Assume 65%reduction in TSP with watering thrice daily per SCAQMD CEQA Handbook(1993)Table 11-4 <br /> Total(tons)without mitigation 1.170 <br /> Total(tons)with mitigation 0.410 Assume 65%reduction in PM10 with watering thrice daily per SCAQMD CEQA Handbook(1993)Table 11-4 <br /> 9/4/2008 <br />