Layer Estimates:

Layer: CD12 (ID:0)
Count: 1
Extent:

XMin: -13210212.8534929
YMin: 4053497.31727033
XMax: -13187665.725214
YMax: 4073733.84027752
Spatial Reference: 102100 (3857)

Layer: Election Precincts (ID:1)
Count: 149
Extent:

XMin: -13209700.290244
YMin: 4053760.56838639
XMax: -13188206.7848646
YMax: 4072174.48824273
Spatial Reference: 102100 (3857)

Layer: Census Block (ID:2)
Count: 153
Extent:

XMin: -13210220.6102949
YMin: 4053099.07678393
XMax: -13187663.8842294
YMax: 4074802.12274422
Spatial Reference: 102100 (3857)