The database will be unavailable for several hours on Saturday, January 10th, 2026, for system upgrades starting at 10am Pacific.

River Conditions Individual Parameter Inventory

Electrical Conductivity
All Locations
Location Site Code Basin Elevation Operator Data Year Range Additional Information
Bethel Island BET DELTA 9 CA Dept of Water Resources/North Central Region Office 2002-2026 View Year Details View All Parameters for Location
Clifton Court CLC DELTA 3 CA Dept of Water Resources/Operations and Maintenance 1987-2026 View Year Details View All Parameters for Location
Emmaton EMM DELTA 0 US Bureau of Reclamation 1988-2026 View Year Details View All Parameters for Location
Harvey O Banks Pumping Plant HRO DELTA 4 CA Dept of Water Resources/O&M San Joaquin Field Division 2019-2026 View Year Details View All Parameters for Location
Old River at Bacon Island (USGS) OBI DELTA 10 USGS/DWR 2008-2026 View Year Details View All Parameters for Location
Old River at Highway 4 OH4 DELTA 10 US Geological Survey 2009-2025 View Year Details View All Parameters for Location
Old River nr Tracy OLD DELTA 5 CA Dept of Water Resources/Operations and Maintenance 2006-2026 View Year Details View All Parameters for Location
Old River at Franks Tract OSJ DELTA 0 USGS/DWR 2002-2026 View Year Details View All Parameters for Location
Prisoner's Point PPT DELTA 0 CA Dept of Water Resources/Div of Integrated Science and Eng 2001-2026 View Year Details View All Parameters for Location
Union Island UNI DELTA 0 US Bureau of Reclamation 1991-2026 View Year Details View All Parameters for Location
Victoria Canal VCU DELTA 0 USGS/DWR 2007-2026 View Year Details View All Parameters for Location
Feather R nr Gridley GRL FEATHER RIVER 92 CA Dept of Water Resources/Operations and Maintenance 2013-2026 View Year Details View All Parameters for Location
Merced R at Cressy CRS MERCED RIVER 165 CA Dept of Water Resources/South Central Region Office 2000-2026 View Year Details View All Parameters for Location
Merced R nr Stevinson MST MERCED RIVER 82 CA Dept of Water Resources/South Central Region Office 1998-2012 View Year Details View All Parameters for Location
Sacramento R at Verona USGS 11425500 SACRAMENTO R USGS California Water Science Center 2008-2017 View Year Details View All Parameters for Location
Delta Cross Channel DLC SACRAMENTO RIVER 10 US Geological Survey 2009-2025 View Year Details View All Parameters for Location
Sacramento R at Freeport FPT SACRAMENTO RIVER 0 US Geological Survey 2009-2026 View Year Details View All Parameters for Location
Sacramento R blw Georgiana Slough GES SACRAMENTO RIVER 0 US Geological Survey 2009-2025 View Year Details View All Parameters for Location
Sacramento R at Georgiana Slough GSS SACRAMENTO RIVER 10 US Geological Survey 2009-2025 View Year Details View All Parameters for Location
Sacramento R at Mallard Island MAL SACRAMENTO RIVER 0 CA Dept of Water Resources/Div of Integrated Science and Eng 2006-2026 View Year Details View All Parameters for Location
Sacramento R at Rio Vista Bridge RVB SACRAMENTO RIVER 0 CA Dept of Water Resources/Div of Integrated Science and Eng 2003-2026 View Year Details View All Parameters for Location
Sacramento R abv Delta Cross Channel SDC SACRAMENTO RIVER 10 US Geological Survey 2021-2025 View Year Details View All Parameters for Location
San Joaquin R blw Friant USGS 11251000 SAN JOAQUIN R 296 USGS California Water Science Center 2007-2026 View Year Details View All Parameters for Location
San Joaquin R Salt Slough USGS 11261100 SAN JOAQUIN R 75 USGS California Water Science Center 2007-2026 View Year Details View All Parameters for Location
San Joaquin R at Fremont Ford Bridge USGS 11261500 SAN JOAQUIN R 72 USGS California Water Science Center 2007-2026 View Year Details View All Parameters for Location
San Joaquin R Mud Slough near Gustine USGS 11262900 SAN JOAQUIN R 25 USGS California Water Science Center 2007-2026 View Year Details View All Parameters for Location
San Joaquin R nr Newman abv Merced R USGS 11273400 SAN JOAQUIN R 60 USGS California Water Science Center 2009-2026 View Year Details View All Parameters for Location
San Joaquin R at Antioch ANH SAN JOAQUIN RIVER 10 CA Dept of Water Resources/Div of Integrated Science and Eng 2003-2026 View Year Details View All Parameters for Location
San Joaquin R at Brandt Bridge BDT SAN JOAQUIN RIVER 0 CA Dept of Water Resources/Operations and Maintenance 2006-2026 View Year Details View All Parameters for Location
San Joaquin R, Delta Mendota Canal Check 21 DM3 SAN JOAQUIN RIVER 164 US Bureau of Reclamation 1994-2025 View Year Details View All Parameters for Location
San Joaquin R at Donny Bridge DNB SAN JOAQUIN RIVER 239 US Bureau of Reclamation 2004-2018 View Year Details View All Parameters for Location
San Joaquin R, Eastside Bypass blw Mariposa EBM SAN JOAQUIN RIVER 115 CA Dept of Water Resources/South Central Region Office 2013-2026 View Year Details View All Parameters for Location
San Joaquin R, Fremont Ford FFB SAN JOAQUIN RIVER 65 US Geological Survey 2004-2026 View Year Details View All Parameters for Location
San Joaquin R at Friant Dam (WQ) FWQ SAN JOAQUIN RIVER 330 US Bureau of Reclamation 2010-2026 View Year Details View All Parameters for Location
San Joaquin R at Gravelly Ford GRF SAN JOAQUIN RIVER 170 US Bureau of Reclamation 2001-2026 View Year Details View All Parameters for Location
San Joaquin R at Hwy 41 H41 SAN JOAQUIN RIVER 260 US Bureau of Reclamation 2005-2026 View Year Details View All Parameters for Location
San Joaquin R, Holland Cut HOL SAN JOAQUIN RIVER 0 USGS/DWR 2006-2026 View Year Details View All Parameters for Location
San Joaquin R, nr Mendota MEN SAN JOAQUIN RIVER 170 US Bureau of Reclamation 2013-2026 View Year Details View All Parameters for Location
San Joaquin R at Maze Rd Bridge MRB SAN JOAQUIN RIVER 39 CA Dept of Water Resources/South Central Region Office 2006-2025 View Year Details View All Parameters for Location
San Joaquin R at Mossdale Bridge MSD SAN JOAQUIN RIVER 31 CA Dept of Water Resources/Div of Integrated Science and Eng 2001-2026 View Year Details View All Parameters for Location
San Joaquin R, Mud Slough MSG SAN JOAQUIN RIVER 70 US Geological Survey 2001-2026 View Year Details View All Parameters for Location
Old River at Head OH1 SAN JOAQUIN RIVER 15 CA Dept of Water Resources/North Central Region Office 2014-2026 View Year Details View All Parameters for Location
San Joaquin R at Prisoners Pt nr Termino PRI SAN JOAQUIN RIVER 0 US Geological Survey 2006-2020 View Year Details View All Parameters for Location
San Joaquin R, Rough and Ready Island RRI SAN JOAQUIN RIVER 15 CA Dept of Water Resources/Div of Integrated Science and Eng 2002-2026 View Year Details View All Parameters for Location
San Joaquin R, nr Dos Palos SDP SAN JOAQUIN RIVER 116 CA Dept of Water Resources/South Central Region Office 2009-2026 View Year Details View All Parameters for Location
San Joaquin R, Below Bifurcation SJB SAN JOAQUIN RIVER 170 US Bureau of Reclamation 2009-2018 View Year Details View All Parameters for Location
San Joaquin R blw Friant SJF SAN JOAQUIN RIVER 294 US Geological Survey 2004-2026 View Year Details View All Parameters for Location
San Joaquin R at Jersey Point (USGS) SJJ SAN JOAQUIN RIVER 10 US Geological Survey 2009-2025 View Year Details View All Parameters for Location
San Joaquin R blw Old R nr Lathrop SJL SAN JOAQUIN RIVER 10 CA Dept of Water Resources/North Central Region Office 2006-2026 View Year Details View All Parameters for Location
San Joaquin R at Patterson Bridge SJP SAN JOAQUIN RIVER 97 CA Dept of Water Resources/South Central Region Office 2000-2025 View Year Details View All Parameters for Location
San Joaquin R, McCune Station nr Vernalis SJR SAN JOAQUIN RIVER 32 CA Dept of Water Resources/Div of Integrated Science and Eng 2005-2026 View Year Details View All Parameters for Location
San Joaquin R, Stevinson SJS SAN JOAQUIN RIVER 82 CA Dept of Water Resources/South Central Region Office 2000-2026 View Year Details View All Parameters for Location
San Joaquin R, nr Newman abv Merced R SMN SAN JOAQUIN RIVER 60 US Geological Survey 2010-2026 View Year Details View All Parameters for Location
San Joaquin R, Salt Slough SSH SAN JOAQUIN RIVER 75 US Geological Survey 2001-2026 View Year Details View All Parameters for Location
San Joaquin R, Washington Road SWA SAN JOAQUIN RIVER 109 CA Dept of Water Resources/South Central Region Office 2010-2025 View Year Details View All Parameters for Location
San Joaquin R, Tracy Pumping Plant TRP SAN JOAQUIN RIVER 3 CA Dept of Water Resources/Operations and Maintenance 2019-2026 View Year Details View All Parameters for Location
San Joaquin R, Vernalis USBR VER SAN JOAQUIN RIVER 0 US Bureau of Reclamation 1988-2026 View Year Details View All Parameters for Location
Stanislaus R at Orange Blossom Bridge OBB STANISLAUS RIVER 117 CA Dept of Water Resources/South Central Region Office 2000-2026 View Year Details View All Parameters for Location
Stanislaus R at Ripon (USGS) RIP STANISLAUS RIVER 73 US Geological Survey 2011-2026 View Year Details View All Parameters for Location
Stanislaus R at Ripon RPN STANISLAUS RIVER 35 US Bureau of Reclamation 1988-2026 View Year Details View All Parameters for Location
Tuolumne R at Modesto MOD TUOLUMNE RIVER 90 US Geological Survey 2001-2026 View Year Details View All Parameters for Location