Layer Estimates:

Layer: Testing_Sites (ID:0)
Count: 22714
Extent:

XMin: -19942580.8004135
YMin: -1637228.87244235
XMax: 16259767.5318598
YMax: 11537067.3467446
Spatial Reference: 102100 (3857)

Layer: Testing_Site_Location (ID:1)
Count: 23242
Extent:

XMin: -19665432.9635669
YMin: -1611898.17421756
XMax: 16129393.916081
YMax: 11505062.034186
Spatial Reference: 102100 (3857)

Layer: United_States_Basic (ID:2)
Count: 49
Extent:

XMin: -13885188.4222
YMin: 2870387.3962
XMax: -7454985.1465
YMax: 6338173.2201
Spatial Reference: 102100 (3857)

Layer: Covid_Testing_Centers_Data.csv (ID:3)
Count: 22458

Layer: Covid_Testing_Centers_minimal.csv (ID:4)
Count: 23242