Layer Estimates:

Layer: 15MinBuffer (ID:0)
Count: 1
Extent:

XMin: -13643842.7838
YMin: 5701598.3633
XMax: -13641137.5768
YMax: 5704916.4604
Spatial Reference: 102100 (3857)

Layer: 30MinBufffer (ID:1)
Count: 1
Extent:

XMin: -13643884.6088
YMin: 5699886.2788
XMax: -13639287.5852
YMax: 5706415.3598
Spatial Reference: 102100 (3857)