Santa Margarita Watershed
From SDCK Watershed Wiki
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The Santa Margarita Watershed encompasses approximately 750 square miles in northern San Diego and southwestern Riverside counties. The watershed contains a variety of nearly intact habitats including chaparral-covered hillsides, riparian woodlands, and coastal marshes. Of the total watershed area, approximately 27% is within San Diego County.
Watershed information
Hydrologic areas
Hydrologic Unit: 902.11 - 902.94
Hydrologic Areas: Ysidora 902.1 ; DeLuz 902.2 ; Murrieta 902.3 ; Auld 902.4 ; Pechanga 902.5 ; Wilson 902.6 ; Cave Rocks 902.7 ; Aguanga 902.8 ; Oakgrove 902.9
Major Water Bodies: (i)Santa Margarita River (ii)Temecula Creek (iii)Murrieta Creek (iv)Santa Margarita Lagoon (v)Vail Lake (vi)Skinner Reservoir (vii)Diamond Valley Lake Reservoir
Impaired Water Bodies in Santa Margarita Watershed
CWA 303(d) List :
| Waterbody | Pollutant/Stressor |
|---|---|
| Temecula Creek | Nitrogen, Phosphorus,Total Dissolved Solids |
| Santa Margarita River (Upper) | Phosphorus |
| Santa Margarita Lagoon | Eutrophic |
| Sandia Creek | Iron, Manganese, Nitrogen, Sulfates, Total Dissolved Solids |
| De Luz Creek | Iron, Manganese |
| Long Canyon Creek | Total Dissolved Solids |
| Murrieta Creek | Iron, Manganese, Nitrogen, Phosphorus |
| Rainbow Creek | Iron, Sulfates, Total Dissolved Solids |
Coastkeeper Monitoring Sites in Santa Margarita Watershed
San Diego Coastkeeper does not currently monitor water quality at any sites in the Santa Margarita watershed.
Watershed Captains in Santa Margarita Watershed
-None Currently-
Watershed Studies and Reports
Monitoring Plan for the Santa Margarita River - Conservartion Biology Institute
Watershed Resources
The Santa Margarita and San Luis Rey Watersheds Weed Management Area
Friends of the Santa Margarita River
Santa Margarita Ecological Reserve
Water Quality Data
Due to constraints in resources and logistics, limited number of samples were collected from Santa Margarita Watershed in 2008.
