| Site Information |
| Site Name | Code | Subnet | Type | Monument Installed | Data Archived |
| Spillway | SPWY | PANGA | (Y) | 2010-04-20 | PANGA |
| Site Location Information |
| City | State | Latitude | Longitude | Elevation |
| Howard Hansen Dam | WA | 47.2773166 | -121.788387 | 356.197 |
| Approximate ITRF Position X,Y,Z (m) |
| X | Y | Z |
| -2283780.820 | -3685028.878 | 4662998.010 |
| Current Receiver and Antenna Type |
| Receiver | Antenna |
| TRIMBLE NETR5 | TRM55971.00 |
| Data Acquisition for CGPS |
| Telemetry | Real-Time | SGM Dist | Onboard PPP | Last Data |
| DC | N | n/a | N | none |
| Receiver Upgrades and Firmware Updates |
| Date Installed | Time UTC | Receiver Type |
| 2010-04-20 | 00:00:00 | TRIMBLE NETR5 |
| Antenna and Domes |
| Date Installed | Time UTC | Antenna Type & Dome |
| 2010-04-20 | 00:00:00 | TRM55971.00 NONE |
| DD=Daily Download, MD=Manual Download, DC=Decommissioned, NA=Not Available |