Nipomo-Suey Creek


Nipomo – Suey Creek Watershed
Nipomo – Suey Creek Watershed

The Nipomo – Suey Watershed is a basin located in southern San Luis Obispo County and northern Santa Barbara County. The watershed rises to a maximum elevation of approximately 1,800 feet above mean sea level. The area includes two tributary basins to the Santa Maria River with their headwaters in the foothills of the Coast Range: Nipomo Creek and Suey Creek.

The watershed is dominated by agricultural land uses including ranches, row crops, greenhouses and orchards. Other land uses include residential.

Watershed Overview
Hydrologic Unit Name:  Santa Maria HU 12
Water Planning Area:  South County WPA 7
Acreage:  36,912 acres
Flow to:  Santa Maria River
Groundwater Basin(s):  Santa Maria Valley
Jurisdictions: County of San Luis Obispo, Community of Nipomo
Watershed Plans: Nipomo Creek Watershed Management Plan (Land Conservancy of San Luis Obispo and CCSE, 2005)


View Subwatersheds

  1. Nipomo Creek
  2. Nipomo Valley
  3. South of Twitchell Reservoir
  4. Suey Creek

Full Data Snapshot

Download the Watershed Snapshot for more detailed information such as:
Watershed Snapshot

  • Rainfall
  • Geology
  • Hydrology models
  • Vegetation
  • Special status wildlife and plants
  • Land use
  • Demographics
  • Major changes in the watershed
  • Watershed health
  • Groundwater