4,670 ft
SweetwaterAuthority Desalination
Facility
San Diego River Basin
Tijuana River Basin
Otay River Basin
Sweetwater River BasinSan Diego River Basin Otay River BasinSan Dieguito River Basin
SweetwaterRiver BasinSweetwater
River Basin
PuebloDrainage Basin
San Miguel Mtn
SweetwaterReservoir
OtayReservoir
TijuanaRiver Basin
SweetwaterRiver Basin
OtayRiver Basin
MEX
ICO
UN
ITED
STA
TES
San DiegoRiver Basin
San DieguitoRiver Basin
San DiegoRiver Basin
Los PenasquitosCreek Basin
SDEPSDSW
SDOR
SDMCSDNB
SDAQ
SDMC
SDSW
SDOT SDBW
SDBP
Otay Mtn
SDAQ
Pacific OceanPacific Ocean Pacific Ocean Pacific Ocean
Preliminary Subject to Revision
Preliminary Subject to Revision
Tijuana
Tecate
National City
Santee
Chula Vista
Rosarito
Escondido
Creek
Cotton
Lower OtayReservoir
wood
Creek
SweetwaterReservoir
El CapitanReservoir
LakeCuyamaca
San VicenteReservoir
LovelandReservoir
BarrettLake
LakeMorena
SALTON
SEA
Baja CaliforniaCalifornia
San
Diego
River
Otay
Tijuana
River
River
United States
Mexico
Shaded relief base from U.S. Geological Surveydigital elevation data, 1:24,000-scale
0 10 20 MILES
20 KILOMETERS0 10
32 45’
33 00’
32 30’
32 15’
33 15’
117 00’117 15’117 30’ 116 30’116 45’ 116 15’ 116 00’
117 00’117 15’ 116 30’116 45’ 116 15’ 116 00’
Vista
Imperial C
ounty
San Diego C
ountyEscondido
San Marcos
Laguna Mountains
Coastal Basins of San Diego County, California, and Northern Baja California, Mexico
Local features and Groundwater sites in Coastal River basins, San Diego County, California
Presa Aberardo L.Rodriguez
Penasquitos watershed
South BayWastewater
Treatment Plant
Ysabel
Sant
a Creek
LakeHodges
94 94
54
56
52
8
8
5
5
5
15
15
805
805
79
79
78
76
76
67
67
Lake Sutherland
MiramarReservoir
Encinitas
Sweetwater River Basin
San DieguitoRiver Basin
Pueblo watershed
SDCC
SDHF
SDBP
SDHF
SDSYSDSY
SDCPSDCP
Hydrogeology of Coastal Drainage Basins of San Diego County,California, 2012
PLATE 1-Coastal drainage basins and locations of realtime sites in San Diego County, California
By Wesley R. Danskin, 2010
SDAQ
SDBP
SDMC
SDNB
SDBW
SDSW
SDOT SDOR
Study area
CALIFORNIA U.S.A.
Precipitation (Atmosphere site)
Ground-Water (USGS Multiple-Depth Sites)
Lake gage
Stream gage
USGS Realtime sites-06-29-2009
EXPLANATION
Fault
Concealed
Approximately located
Inferred
Inferred, queried
Pacif ic
Ocean
Point Lomaocean outfall
South Bayocean outfall
Point LomaWastewater
Treatment Plant
18,970 ft
Islas De Los Coronados
Study areaboundary
La Jolla Canyon
Oceanside
Carlsbad
San Diego
El Cajon
La Mesa
Solana Beach
Del Mar
San Dieguito River Basin
Swee
twat
er River
SDSY
SDEP
SDCP
SDHF
SDCC
