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

Surface Water Data Portal

Demo snapshot · July 28, 2026 at 4:53 PM PT · not current conditions

Watershed

West Valley

San Tomas Aquino, Saratoga, Calabazas and Sunnyvale creeks drain the west side of the valley through Saratoga, Campbell, Santa Clara and Sunnyvale.

14 stream gauges · 2 rain gauges · 0 reservoirs · drains to San Francisco Bay

West Valley portal-group sensors plotted at their published coordinates over Valley Water's major-watershed polygons.
14 stream, 2 rain, and 0 reservoir sensors assigned to the West Valley portal group, plotted at their issued coordinates. Sunnyvale West, Sunnyvale East, Calabazas, San Tomas are the published polygons whose names match this portal group. The eleven published polygons do not exactly match the portal's five sensor groups and do not provide a boundary for every named creek.
  • Stream gauge
  • Rain 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

Ridge 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.

Calabazas Creek

2 gauges, ordered south to north down the creek

  1. Calabazas Creek above Rainbow Ave

    0.98 ft · 0 cfs · no published threshold

  2. Calabazas Creek at Wilcox

    1.11 ft · 0.25 cfs · no published threshold

San Tomas Creek

2 gauges, ordered south to north down the creek

  1. San Tomas Creek at UPRR near Quito Rd

    2.30 ft · 0 cfs · no published threshold

  2. San Tomas Creek above Williams Rd

    0.51 ft · 0 cfs · 5.29 ft below threshold 1

Saratoga Creek

2 gauges, ordered south to north down the creek

  1. Saratoga Creek at Saratoga (USGS)

    2.08 ft · 1.27 cfs · no published threshold

  2. Saratoga Creek at Pruneridge Ave

    0.61 ft · 0 cfs · no published threshold

Sunnyvale East Channel

2 gauges, ordered south to north down the creek

  1. Sunnyvale East Channel at Bayshore Frontage Rd

    1.49 ft · 2.29 cfs · 4.51 ft below threshold 1

  2. Sunnyvale East Channel at Baylands Park (Stage Only)

    4.96 ft · 0 cfs · no published threshold

Other Gauges Here

Rain Gauges Here

Rain gauges in the West Valley watershed
GaugeLast hourLast 24 hoursSeason
Valley Christian0.00 in0.00 in42.05 in
West Yard0.00 in0.00 in15.71 in