Laserfiche WebLink
Comex Vernalis warty Mining and Reclamation Project <br /> TABLE 4.6,613 — <br /> REVISED HEALTH RISK ASSESSMENT RESULTS BY SOURCE CATEGORY <br /> Production Cancer Chronic Health <br /> Level Source Category Risk Index Acute Health Index <br /> 4M DPM from Onsite Equipment 4.49(2) 0,06(2) NA <br /> DPM from Haul Trucks along Route 1 4.24(4) 0.04(5) NA <br /> DPM from Haul Trucks along Route 3 6.40(g) 0.04(5) NA <br /> Aggregate&Fugitive Dust 0.002 0.23(2) 0.003(3) <br /> (3) <br /> Asphalt Plant 0.02(3) 0.005(5) 0.37(2) <br /> Values in parenthesis represent receptor ID <br /> TABLE 4.6.6C <br /> REVISED HEALTH RISK ASSESSMENT RECEPTORS <br /> ID Description Type ID Description Type <br /> 1 Southwest of Phase V Residence 7 Blewett Road Residence <br /> (Haul Route 3) <br /> 2 West of Phase III Residence 8 Blewett Road Residence <br /> (Haul Route 3) _ <br /> 3 Northeast of Phase IVB Residence 9 Welly Road Residence <br /> (Haul Route 3) <br /> 4 Blewett Road Residence 10 Route 33 Off-site Worker _ <br /> (Haul Route 1) (Haul Route 3) <br /> 5 Southeast of Phase VI Off-site Worker 11 Route 33 Residence <br /> (Haul Route 3) <br /> 6 Blewett Road Residence 12 Route 33 Residence <br /> (Haul Route 3) (Haul Route 3) <br /> The HRA accounts for maximum and average roduction levels maximum and average truck <br /> trips improvements to on-road vehicle and offroad equipment emissions efficiencies and <br /> effected project durations under each production level alternative The HRA also accounts for <br /> emission reduction measures which are defined as part of the project(c.g., fugitive dust <br /> Mitigation planning) Without the prescribed mitigation measures for DPM and fugitive dust <br /> control the project could contribute to potentiaa� significant health risks <br /> DPM emissions would be released from the on-site equipment and from haul trucks associated <br /> with the project. CARB has declared that DPM from diesel engine exhaust is a TAC. _ <br /> Additionally;the California Office of Environmental Health Hazard Assessment(OEHHA)has <br /> determined that chronic exposure to DPM can cause carcinogenic and non-carcinogenic health <br /> effects. OEHHA has specified an acceptable exposure level (AEL)of DPM as a non-carcinogen — <br /> Cemex Vernalis Quarry Mining and Reclamation Project 4-50 ESA 1203015 <br /> Final Environmental Impact Report dune 2008 <br />