Legend (CPLAN/Environmental_AirQuality)

I-25 Sweep Box Area (Street Sanding - Reg. 16) (2) CBD Sweep Box Area (Street Sanding - Reg. 16) (0) Sweep Box Area (Street Sanding - Reg. 16) (4) Foothills Area (Street Sanding - Reg. 16) (1) Metro Area (Street Sanding - Reg. 16) (3) Attainment/Maintenance - CO (> 20 years) (5) Attainment/Maintenance - PM10 (< 20 years) (6) Attainment/Maintenance - PM 10 (> 20 years) (7) Nonattainment - Ozone (8) Nonattainment - Ozone (2021 expansion) (9)