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Central Valley Groundwater Monitoring

90,566 wells · 7 counties · Groundwater contours, flow direction, subsidence & water quality

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Total Wells

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Irrigation

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Domestic

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Monitoring

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Subsidence Risk

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Quality Alerts

Well Layers

All Wells (90k) Irrigation Only Domestic Only Monitoring Only Public Supply Only Industrial Only

Hydrology Layers

GW Elevation Contours GW Level Change C2VSim Watersheds Flow Direction Arrows Monitoring Stations

Risk Layers

Subsidence Zones Water Quality Zones

Land Subsidence

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Water Quality

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Loading 90,566 wells + hydrology layers...

Well Types

Irrigation

Domestic

Monitoring

Public Supply

Industrial

Other

Hydrology

GW Elevation Contours

GW Level Change

C2VSim Watersheds

Flow Direction

Monitoring Stations

Risk Zones

Critical Subsidence

High Subsidence

Moderate

Low