| Site type: Well; depth=315 ft |
| Station identifier: CH-10B (Corehole 10B) |
| USGS station number: 373930118491602 |
| Latitude: 37°39'30" (NAD27) |
| Longitude: 118°49'16" (NAD27) |
| Altitude: 7,079.68 ft above sea level (NGVD29) |
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CH-10B is a monitoring site where water level and barometric pressure are monitored using a pressure transducer and barometer, respectively. These data are recorded on a datalogger every 15 minutes, and the data are transmitted via satellite to NWIS, our national database. CH-10B was drilled by the USGS in 1983 to investigate the hydrothermal system in the southeast moat of Long Valley Caldera. Since 1987, well CH-10B also has been used to monitor pressure changes in the thermal aquifer that could result from pumping geothermal fluid for power production at Casa Diablo and from crustal unrest. | |
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CH-10B on Maps
10 meter resolution digital elevation model
with all monitoring sites on the Hydrologic Studies Homepage (CH-10B is not labeled)
Plots and Data from CH-10B
Hydrograph of last 15 days (shown with barometric pressure)
Hydrograph for the period of record
Temperature Logs (12 since 1988)
