Hydrogeology of Coastal Drainage Basins of County, , 2012

PLATE 1-Coastal drainage basins and locations of realtime sites in San Diego County, California

117 30’ 117 15’ 117 00’ 116 45’ 116 30’ 116 15’ 116 00’

33 15’ 76 SALTON 15 76 SEA Oceanside Vista 79 Preliminary 5 78 Subject to Revision Carlsbad San Marcos San Dieguito Basin Creek Escondido

Ysabel Creek Lake Sutherland

Santa Escondido SDSY Encinitas

33 00’ Solana Beach Lake Cuyamaca Study area 56 boundary Del Mar Basin 67 Penasquitos watershed Miramar Reservoir San Vicente Laguna Mountains La Jolla Reservoir 15 El Capitan 79 5 Reservoir 805 52 Santee San Diego County

67 Imperial County River SDAQ Diego 8 El Cajon Sweetwater River Basin San 8 La Mesa Loveland Reservoir Pueblo watershed River 32 45’ SDBP SDCP San Diego 94 Pacific Sweetwater 94 Barrett Point Loma SDNB SDHF Wastewater Lake Treatment Plant SDEP Sweetwater Basin Lake National City Point Loma 54 Reservoir Morena

ocean outfall Sweetwater Authority Desalination SDSW Facility SDMC California Chula Vista SDCC Lower Otay Reservoir Creek SDOT United States SDOR Otay River wood Ocean 5 805 Cotton

18,970 ft 4,670 ft South Bay South Bay River ocean outfall Wastewater SDBW Treatment Plant 32 30’ Tijuana

Islas De Los Basin Coronados Presa EXPLANATION Aberardo L. Rodriguez USGS Realtime sites-06-29-2009

Precipitation (Atmosphere site) Rosarito Ground-Water (USGS Multiple-Depth Sites)

Lake gage

Stream gage

Fault 32 15’ Approximately located CALIFORNIA U.S.A. Concealed Inferred Inferred, queried Study area

Shaded relief base from U.S. Geological Survey 117 15’ 117 00’ 116 45’ 116 30’ 116 15’ 116 00’ digital elevation data, 1:24,000-scale 0 10 20 MILES

0 10 20 KILOMETERS

Coastal Basins of San Diego County, California, and Northern Baja California, Mexico

San Dieguito River Basin San Diego River Basin Sweetwater River Basin Otay River Basin

Sweetwater River Basin

Sweetwater Sweetwater Otay Mtn River Basin River Basin SDSY

SDSY San Miguel Mtn Otay River Basin

Otay San Dieguito San Diego San Diego Reservoir River Basin Basin River Basin Sweetwater River Basin Reservoir

SDCP SDCP SDEP SDSW SDAQ SDHF Los Penasquitos SDAQ Creek Basin SDHF SDOR

Pueblo SDCC Tijuana MEXICO

River Basin UNITED STATES SDBP SDNB SDMC SDSW SDBP SDMC SDOT SDBW

Pacific Ocean Pacific Ocean Pacific Ocean Pacific Ocean

Local features and Groundwater sites in Coastal River basins, San Diego County, California

Preliminary By Wesley R. Danskin, 2010 Subject to Revision