| 01/01/2013 | For QA/QC'd data, contact the Division of Environmental Services (sal@water.ca.gov). |
| 11/04/2010 | Bottom EC was restored 11/03/2010 10:30 PST. |
| 10/18/2010 | Bottom EC is down due to a power failure 9/28/2010 at 20:30 PDT. The City of Antioch hopes to have power restored by the end of October. |
| 01/18/2008 | This site was changed from a microwave (vhf) site to a satellite site with new sensors (Ph and turbidity). The EC top and bottom units were changed from millisemens to microsemens. |
| 09/30/2006 | The vertical datum has changed for this station as of October 1, 2006. Please see [Datum Change 2006] for details. |
| 02/01/2006 | Added river stage sensor for data with NAVD88 datum. |
| 12/06/2005 | Conversion factor to NGVD29 was updated to -2.68. |
| 08/19/2005 | River stage data will displayed in NGVD29 datum until Oct.1, 2006. The station is sending data with datum NAVD88 as of 8/19/2005 11:15AM. Conversion factor to NGVD29 was applied (factor = 0.33). |
