Sweetwater Watershed
From SDCK Watershed Wiki
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The Sweetwater River watershed along with the Otay and Pueblo San Diego watersheds combine to form the San Diego Bay watershed area. The Sweetwater River watershed is the largest of the three encompassing 230 of the approximately 415 square mile total. Over 86% of the watershed is within unincorporated jurisdictions. The dominant land uses in the Sweetwater River watershed are urban (29%), open space / agriculture (22%), and undeveloped (49%). Approximately two-thirds of the land area categorized as urban is composed of residential communities. Approximately 300,000 people currently reside within the Sweetwater River watershed, and this amount is projected to increase to 365,000 by 2015. The most important watershed issues are related to the protection of municipal water supplies, and the protection and restoration of sensitive wetland and wildlife habitats.
 | Watershed monitoring sites by San Diego Coastkeeper |
 | Formerly monitored sites by San Diego Coastkeeper |
 | Beach water monitoring sites by County DEH |
 | Beach water monitoring sites by wastewater agencies |
Coastkeeper Monitoring Sites in Sweetwater Watershed
San Diego Coastkeeper currently conducts monthly water quality monitoring at 3 sites in the Sweetwater watershed.
The Site codes and their locations are as follows:
SWT-010 : Sweetwater River at Plaza Bonita Rd.
SWT-020 : Sweetwater River at S17 Sweetwater Rd.
SWT-030 : Sweetwater River at SR 94 East.
Watershed Information
Hydrologic Areas in Sweetwater Watershed
Hydrologic Unit: 909.11 - 909.35
Hydrologic Areas: Lower Sweetwater 909.1 ; Middle Sweetwater 909.2 ; Upper Sweetwater 909.3
Major Water Bodies: (i)Sweetwater River (ii)Sweetwater Reservoir (iii)Loveland Reservoir (iv)San Diego Bay
Impaired Water Bodies in Sweetwater Watershed
CWA 303(d) List :
| Waterbody | Pollutant/Stressor |
|---|---|
| Sweetwater Reservoir | Dissolved Oxygen |
| San Diego Bay Shoreline(Chula Vista Marina) | Copper |
| San Diego Bay Shoreline(Bayside Park, J street) | Indicator Bacteria |
| Loveland Reservoir | Aluminium, Manganese, Dissolved Oxygen, pH |
Watershed Land Use
Land Use by type
| Type | Share of Watershed |
|---|---|
| Residential | 26.0% |
| Commercial | 11.0% |
| Parks & Open Spaces | 58.0% |
| Golf Course | 1.1% |
| Agriculture | 2.0% |
| Under Construction | 0.1% |
| Industry | 0.5% |
Watershed Captains in Sweetwater Watershed
-None Currently-
Watershed Studies and Reports
Surface Water Ambient Monitoring Program (SWAMP) Report on the Sweetwater Hydrologic Unit - 2007
Watershed Resources
Videos by HTHMA Students
by Ariana Galvan, Geraldine Villegas, Alex Parra, & Eric Watts
by Genevieve Calpito, Nic Nash, Charae Pimentel, & Roberto Sotelo
San Diego Bay Watersheds Common Ground
Data Interpretations
Water Quality at Site SWT.1 in 2009
Water Quality at Site SWT.2 in 2009
