Layer Estimates:

Layer: Sulfur Dioxide Nonattainment Areas (ID:0)
Count: 3
Extent:

XMin: 496290.6875
YMin: 3635784.5
XMax: 532227.0625
YMax: 3712572.5
Spatial Reference: 26912 (26912)

Layer: Sulfur Dioxide Maintenance Areas (ID:1)
Count: 5
Extent:

XMin: 317962.625
YMin: 3467422.2746
XMax: 667793
YMax: 3712572.5
Spatial Reference: 26912 (26912)