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Table 15 <br />Carbon Monoxide Concentrations <br />Adjacent to Nearby Roadways <br />` "With Project" values are identical for all three alternatives. <br />2 Receptor distances are measured from the roadway centerline. <br />' All concentrations include roadway contributions only and do not include the <br />background levels noted (which must be added to determine state and federal <br />standard exceedances). <br />Source: Endo Engineering <br />IV -15 <br />No- Project <br />With Project' <br />!-Hour Average (ppm) <br />Nearest <br />Nearest <br />Nearest <br />Nearest <br />Receptor Distances2 (feet) <br />-------------------------------------------- <br />Receptor 150 <br />200 <br />Receptor 150 <br />200 <br />-------------------------------------------- <br />1987 CONDITIONS <br />-------------------------------------------- <br />1987 CONDITIONS <br />Bristol Street' at <br />Bristol Street' at <br />- Memory Lane <br />2.7 <br />2.7 <br />1.9 <br />- -- <br />-- <br />- Seventeenth Street <br />3.0 <br />1.7 <br />1.0 <br />-- -- <br />-- <br />- First Street <br />3.4 <br />2.6 <br />1.8 <br />- -- <br />-- <br />- Warner Avenue <br />2.2 <br />2.2 <br />1.5 <br />-- -- <br />-- <br />Background Concentration <br />-------------------------------------------- <br />18.0 <br />18.0 <br />18.0 <br />-- -- <br />-- <br />-------------------------------------------- <br />2006 CONDITIONS <br />-------------------------------------------- <br />2006 CONDITIONS <br />Bristol Street' at <br />Bristol Street' at <br />- Memory lane <br />3.7 <br />3.7 <br />2.5 <br />1.8 1.8 <br />1.3 <br />- Seventeenth Street <br />4.6 <br />2.6 <br />1.6 <br />1.8 1.0 <br />0.6 <br />- First Street <br />3.9 <br />3.2 <br />2.3 <br />2.0 1.8 <br />1.4 <br />- Warner Avenue <br />2.7 <br />2.7 <br />1.9 <br />1.9 1.9 <br />1.3 <br />Background Concentration <br />14.6 <br />14.6 <br />14.6 <br />14.6 14.6 <br />14.6 <br />` "With Project" values are identical for all three alternatives. <br />2 Receptor distances are measured from the roadway centerline. <br />' All concentrations include roadway contributions only and do not include the <br />background levels noted (which must be added to determine state and federal <br />standard exceedances). <br />Source: Endo Engineering <br />IV -15 <br />No- Project <br />With Project <br />8 -Hour Average (ppm) <br />Nearest <br />Nearest <br />Receptor Distances2 (feet) <br />-------------------------------------------- <br />Receptor 150 <br />200 <br />Receptor 150 <br />200 <br />-------------------------------------------- <br />1987 CONDITIONS <br />Bristol Street' at <br />- Memory Lane <br />1.2 <br />1.2 <br />0.9 <br />-- -- <br />-- <br />- Seventeenth Street <br />1.1 <br />0.7 <br />0.5 <br />-- -- <br />-- <br />- First Street <br />1.5 <br />1.2 <br />0.9 <br />-- -- <br />-- <br />- Warner Avenue <br />1.0 <br />1.0 <br />0.8 <br />-- -- <br />-- <br />Background Concentration <br />-------------------------------------------- <br />11.7 <br />11.7 <br />11.7 <br />-- -- <br />-- <br />-------------------------------------------- <br />2006 CONDITIONS <br />Bristol Street' at <br />- Memory lane <br />1.5 <br />1.5 <br />1.1 <br />0.8 0.8 <br />0.6 <br />- Seventeenth Street <br />1.7 <br />1.1 <br />0.8 <br />0.7 0.4 <br />0.3 <br />- First Street <br />1.6 <br />1.4 <br />1.1 <br />1.0 0.8 <br />0.7 <br />- Warner Avenue <br />1.2 <br />1.2 <br />0.9 <br />0.9 0.9 <br />0.6 <br />Background Concentration <br />9.5 <br />9.5 <br />9.5 <br />9.5 9.5 <br />9.5 <br />` "With Project" values are identical for all three alternatives. <br />2 Receptor distances are measured from the roadway centerline. <br />' All concentrations include roadway contributions only and do not include the <br />background levels noted (which must be added to determine state and federal <br />standard exceedances). <br />Source: Endo Engineering <br />IV -15 <br />