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USGS Groundwater Historical Instantaneous Data for California: Build Time Series

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Select sites which meet all of the following criteria:
Define one or more values for each of the following site-selection criteria: --- or select new criteria
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 County
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 Available parameters -- select sites that have data for the following parameters:
Select one or more parameters --or-- leave blank to select all:
Water Level/Flow Parameters
  Reservoir storage, acre-ft   (23 sites)
  Flow rate of well, gal/min   (2 sites)
  Streamflow, ft³/s   (626 sites)
  Elevation of reservoir water surface above datum, ft   (2 sites)
  Gage height, ft   (653 sites)
  Streamflow, gal/min   (2 sites)
  Groundwater level above NAVD 1988, ft   (398 sites)
  Lake or reservoir water surface elevation above NGVD 1929, ft   (29 sites)
  Lake or reservoir water surface elevation above NAVD 1988, ft   (31 sites)
  Stream water level elevation above NGVD 1929, in ft   (3 sites)
  Stream water level elevation above NAVD 1988, in ft   (435 sites)
  Depth to water level, ft below land surface   (464 sites)
  Streamflow, tidally filtered, ft³/s   (61 sites)
  Mean Stream velocity from field sensor, ft/s   (10 sites)
  Mean Stream velocity, ft/s   (68 sites)
  Water level elevation above NAVD 1988, corrected for barometric pressure, ft   (3 sites)
  Evapotranspiration total, mm   (2 sites)
Water Quality Parameters
  Temperature, water, °C   (267 sites)
  Specific conductance, water, unfiltered, µS/cm at 25 °C   (156 sites)
  Dissolved oxygen, water, unfiltered, mg/L   (93 sites)
  Dissolved oxygen, water, unfiltered, %saturation   (32 sites)
  pH, water, unfiltered, field, standard units   (78 sites)
  Salinity, water, unfiltered, parts per thousand   (21 sites)
  Colored dissolved organic matter (CDOM), water, in situ, single band excitation, fluorescence emission, ppb QSE   (28 sites)
  Chlorophyll a, estimated, water, in-situ, in-vivo fluorescence, RFU   (12 sites)
  Chlorophyll a, estimated, water, in-situ, in-vivo fluorescence, concentration estimated from reference material, µg/L   (33 sites)
  Phycocyanins (cyanobacteria), water, in situ, fluorometric method, excitation at 590 +-15 nm, emission at 685 +-20 nm, relative fluorescence units, RFU   (3 sites)
  Colored dissolved organic matter (CDOM), water, in situ, fluorometric method, relative fluorescence units (RFU)   (1 sites)
  Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +/-2.5 degrees, FNU   (137 sites)
  Residue, water, filtered, sum of constituents, mg/L   (1 sites)
  Suspended sediment particles between 0.50 to 16.00 microns, water, unfiltered, computed by regression equation, count/L   (1 sites)
  Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 135-180 degrees, SDVB (SBU)   (6 sites)
  Salinity, water, in situ, tidally filtered, practical salinity units at 25 °C   (12 sites)
  Suspended sediment concentration, mg/L   (7 sites)
  Suspended sediment load, water, unfiltered, computed, the product of regression-computed suspended sediment concentration and streamflow, tons/day   (4 sites)
  Suspended sediment concentration, water, unfiltered, at a fixed point in stream, estimated by a regression equation with turbidity, mg/L   (6 sites)
  Bedload transport rate of coarse fraction greater than 8 mm, computed by regression equation, Mg/day   (1 sites)
  Salinity, water, unfiltered, practical salinity units at 25 °C   (22 sites)
  Nitrate plus nitrite, water, in situ, mg/L as N   (24 sites)
  Suspended sediment concentration, water, unfiltered, estimated by regression equation, mg/L   (31 sites)
Meteorological Parameters
  Temperature, air, °C   (14 sites)
  Temperature, air, °F   (2 sites)
  Barometric pressure, mmHg   (5 sites)
  Wind speed, mph   (2 sites)
  Wind direction, degrees clockwise from north   (4 sites)
  Precipitation, total, in   (50 sites)
  Relative humidity, percent   (15 sites)
  Precipitation total for defined period, in   (4 sites)
  Wind gust speed, air, mph   (2 sites)
  Barometric pressure, uncorrected, kPa   (6 sites)
  Total solar radiation (direct + diffuse radiation on a horizontal surface), watts/m²   (1 sites)
  Net solar radiation, W/m²   (5 sites)
  Wind speed, m/s   (7 sites)
  Atmospheric water vapor pressure, calculated, kPa   (6 sites)
  Precipitation, cumulative, inches   (1 sites)
  Precipitation, cumulative, mm   (1 sites)
  Cosmic ray neutron, count, count/hr   (1 sites)
  Barometric pressure, not corrected to sea level, mbar   (2 sites)
Physical Properties Parameters
  Gate opening, height, ft   (2 sites)
  Compaction, aquifer system, ft   (10 sites)
  Net radiation (net solar + net long wave radiation), W/m²   (1 sites)
  Evapotranspiration, inches   (4 sites)
  Moisture content, soil, volumetric, fraction of total volume   (9 sites)
  Atmospheric water vapor density, g/m³   (2 sites)
  Bulk electrical conductance, soil, dS/m   (24 sites)
Miscellaneous Parameters
  Temperature, vent gas, volcanic, °C   (1 sites)
  Soil-heat flux, W/m²   (6 sites)
  Latent heat flux, W/m²   (6 sites)
  Sensible heat flux, W/m²   (6 sites)
  Depth of sensor below water surface, ft   (1 sites)
  Soil temperature, °C   (26 sites)
  Bedload transport rate, derived by regression equation, megagrams per day   (1 sites)
  Underwater sound related to sediment-generated noise, acoustic power wide-band integration from 2.0-10 kHz, dB   (1 sites)
  Moisture content, soil, volumetric, percent of total volume   (18 sites)
  Depth to top of sampling interval, m   (1 sites)
  Upper 90 percent prediction limit for SSC by regression (PCODE 99409), mg/l   (4 sites)
  Lower 90 percent prediction limit for SSC by regression (PCODE 99409), mg/l   (4 sites)
  Upper 90 percent prediction limit for suspended sediment load by regression (PCODE 80297), short tons/day   (3 sites)
  Lower 90 percent prediction limit for suspended sediment load by regression (PCODE 80297), short tons/day   (3 sites)
DCP/Gage Performance Parameters
  DCP battery voltage, V   (14 sites)
 
Choose Output Format
Display Summary of Selected Sites
Choose one of the following options for displaying descriptions of the sites meeting the criteria above:
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Show sites on a mapNew
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Table of sites
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Scroll list of sites -- allows selection of data for multiple sites
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Brief descriptions -- allows selection of data for multiple sites
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        (Select fields to include in site-description output)
       
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Save file of selected sites to local disk for future upload

Retrieve USGS Groundwater Historical Instantaneous Data for Selected Sites
Choose one of the following options for displaying data for the sites meeting the criteria above
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Retrieve data for:
the previous days (1 - 120) **OR**             (Instantaneous-data availability statement)
for the date range:   (1950-10-01 through 2025-09-13)

Output Options:
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Graphs of data   --  
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Graphs of data with long-term statistics   --  
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Table of data
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Tab-separated data *

 * Save compressed files with a .gz file extension.