New website by Stoa. Not the official Valley Water website.

Surface Water Data Portal

Readings as of July 28, 2026 at 4:53 PM PT · not current conditions

Watershed

Other Sensors

Sensors Valley Water's feed does not assign to one of the five watersheds.

5 stream gauges · 0 rain gauges · 0 reservoirs

Other Sensors watershed sensors plotted at their published coordinates over Valley Water's major-watershed polygons.
5 stream, 0 rain, and 0 reservoir sensors in the Other Sensors watershed, plotted at their published coordinates. Valley Water publishes no major-watershed boundary under this name, so none is highlighted. The eleven published boundaries do not line up exactly with the five watershed groupings used here, and not every named creek has one.
  • Stream gauge
  1. San Francisquito
  2. Adobe
  3. Permanente
  4. Sunnyvale West
  5. Sunnyvale East
  6. Calabazas
  7. San Tomas
  8. Guadalupe River
  9. Coyote
  10. Uvas
  11. Llagas

Stream Gauges, Upstream to Bay

Each creek is drawn top to bottom in the order the water runs. The bar beside each gauge is filled to its captured stage on that gauge's own local scale; the dashed rules across it are the flood thresholds Valley Water publishes for that location.

New Chicago Marsh

2 gauges, ordered south to north down the creek

  1. New Chicago Marsh at Alviso

    9.66 ft · 0 cfs · no published threshold

  2. New Chicago Marsh at Don Edwards

    8.89 ft · 0 cfs · no published threshold

Other Gauges Here