Welcome to the North American Subbasin Portal
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NASb GSAs
Abbr
GSA Name
SGA
Sacramento Groundwater Authority GSA
RD 1001
RD 1001 GSA
WP
West Placer GSA
SSWD
South Sutter Water District GSA
Sutter County
Sutter County GSA
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NASb GSAs
NASb Boundary
Water Agencies
Annual Subsidance Layers
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Total Subsidance Layers
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Map Filters
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Data Type
Depth to Groundwater Blw Reference Point
Groundwater Levels
Water Quality
Arsenic (As)
Bicarbonate (HCO₃)
Boron (B)
Calcium (Ca)
Chloride (Cl)
Chromium (Cr)
Iron (Fe)
Magnesium (Mg)
Manganese (Mn)
Nitrate Nitrogen (NO₃-N)
Potassium (K)
Sodium (Na)
Sulfate (SO₄)
Total Dissolved Solids (TDS)
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Monitoring Network
SGMA Representative - Groundwater Levels
SGMA - Groundwater Levels
Other
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Sustainability Indicators
Groundwater Levels
Interconnected Surface Waters
Groundwater Storage
Water Quality
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