Layer Estimates:

Layer: ImpairedRivers (ID:0)
Count: 38
Extent:

XMin: -7896037.49481919
YMin: 5350376.03454502
XMax: -7545730.3927058
YMax: 5981395.54421077
Spatial Reference: 102100 (3857)

Layer: Watersheds (ID:1)
Count: 48
Extent:

XMin: -7923626.58810049
YMin: 5348759.25856276
XMax: -7545706.63869057
YMax: 5982221.09291148
Spatial Reference: 102100 (3857)

Layer: AttainmentRivers (ID:2)
Count: 11
Extent:

XMin: -7916621.63564786
YMin: 5349940.97338318
XMax: -7545730.3927058
YMax: 5981395.54431966
Spatial Reference: 102100 (3857)