Layer Estimates:

Layer: Sites (ID:0)
Count: 426
Extent:

XMin: 18905095.4954731
YMin: -5577154.50916518
XMax: 19325754.6542302
YMax: -5216324.40805584
Spatial Reference: 102100 (3857)

Layer: SiteDescriptions (ID:1)
Count: 426

Layer: WQData (ID:2)
Count: 43572

Layer: Limits (ID:3)
Count: 1682