| Station ID | STH | Elevation | 195' ft |
| River Basin | NAPA R | County | NAPA |
| Hydrologic Area | SAN FRANCISCO BAY | Nearby City | ST HELENA |
| Latitude | 38.511299°N | Longitude | 122.455811°W |
| Operator | US Geological Survey | Data Collection |
| Zero Datum | Peak of Record | Monitor Stage | Flood Stage | Guidance Plots |
|---|---|---|---|---|
| 193.21' NGVD | 17-FEB-86 18.52' | 13.0' | 16.5' | STH_gp |
The following data types are available online. Select one of the links below to retrieve recent data.
| Sensor Description | Duration | Plot | Data Collection | Data Available |
|---|---|---|---|---|
| FLOW, MEAN DAILY, cfs | (daily) | (M FLOW) | COMPUTED | 01/01/1993 to present. |
| BATTERY VOLTAGE, volts | (event) | (BAT VOL) | SATELLITE | 02/02/1995 to present. |
| FLOW, RIVER DISCHARGE, cfs | (event) | (FLOW) | COMPUTED | 01/28/2005 to present. |
| RIVER STAGE, feet | (event) | (RIV STG) | SATELLITE | 02/02/1995 to present. |
| BATTERY VOLTAGE, volts | (hourly) | (BAT VOL) | SATELLITE | 01/01/1995 to present. |
| FLOW, RIVER DISCHARGE, cfs | (hourly) | (FLOW) | COMPUTED | 01/28/2005 to present. |
| FORECASTED STAGE, feet | (hourly) | (STAGE F) | DATA XCHG-NWS | 10/07/2009 to 10/07/2009. |
| RIVER STAGE, feet | (hourly) | (RIV STG) | SATELLITE | 01/01/1984 to present. |
Station comments:
| 07/14/2011 | A stage correction adjustment (-0.24) was applied on 7/14/2011. |
| 03/24/2011 | Latitude and longitude updated according to information downloaded from USGS website. |
| 06/30/2009 | Added a stage correction to sync up with the USGS. |
| 03/10/2006 | Updated the flood stage from 13.0 to 14.5 feet and the monitor stage from 11.0 to 13.0 feet. |
| 01/28/2005 | The gage was relocated approximately 1 mile upstream to the Pope St bridge. |
| 09/08/2004 | Data after April 13, 2004 and prior to August 14, 2004 for stage and flow are incorrect. |