122°40'0"W 122°35'0"W 122°30'0"W 122°25'0"W 122°20'0"W 122°15'0"W Rincon St Helena Valley ¤£128 Subbasin

Santa Rosa Oakmont

Sonoma CreekKenwood 38°25'0"N Kenwood 38°25'0"N Valley Yountville Basin ¤£29 Glen Santa Rosa Ellen Plain Subbasin Napa County Sonoma County Napa Valley Rohnert Park Subbasin

Cotati 38°20'0"N Boyes Hot 38°20'0"N 12 121 ¤£ Springs ¤£ El Verano Napa

Sonoma Petaluma 101 Valley Basin ¤£ Sonoma Valley Arnold Subbasin Drive ¤£221 Schellville 38°15'0"N

Petaluma 38°15'0"N ¤£116 Napa Lowlands Subbasin

American ´ Canyon Sonoma County 38°10'0"N Marin County 38°10'0"N ¤£37 Sonoma DETAIL County AREA

Novato San Pablo Bay Pacific Ocean

01 2 4 Miles Sources: Esri, Garmin, USGS, NPS 122°40'0"W 122°35'0"W 122°30'0"W 122°25'0"W 122°20'0"W 122°15'0"W

D Contributing Watershed Area Figure 2-1 Plan Area Sonoma Valley Groundwater D Subbasin Other groundwater Basins Data Sources: D and Subbasins Groundwater Basins - California Department of WaterResources, Bulletin 118 Sonoma Creek Major Rivers and Creeks - Department of Water Resource, National & Hydrography dataset SONOMA VALLEY City Footprints GROU DWATER = County Line SUSTAINABILITY AGENCY Map Prepared by: Sonoma County Water Agency (Sonoma Water)

Filepath: T:\water transmission\Water_Supply\X0205P006-Groundwater-Sonoma\SonomaValley_GSA_PlanArea.mxd Date prepared: 11/2/2018 St Helena Figure 2-2 Elevation and ¤£128 Surface Water Features

Sonoma Valley Santa Rosa D Groundwater Subbasin Bear Creek Contributing Watershed a Area CJ Waterbodies Sonoma Creek Streams Major Rivers and Creeks s Creek za Managed Wetland ba la Sonoma CountyNapa County a Elevation (feet) C Yountville D ¤£29-4.6 - 20 D 20.1 - 50 D 50.1 - 75 75.1 - 100 D 100.1 - 200 200.1 - 500 Mill Creek D

Hooker Creek k 500.1 - 1,000 e e r 1,000.1 - 1,500 C • n 1,500.1 - 2,000 o • 12 s ¤£ n 2,000.1 - 2,500 a •D h t Arroyo Seco a 2,500.1 - 3,000Napa

N D D 3,000.1 - 4,488.9 Carrig er C Sonoma County Line r = ee k City Footprints

Arnold Drive

Petaluma ¤£116

American ¤£121 Canyon

¤£101 Tolay Creek

Napa Slough Sonoma County 37 ´ Marin County ¤£ Data Sources: San Pablo Bay Groundwater Basins - California Department of Water Resources, Bulletin 118 Major Rivers and Creeks - Department of Water Resources Novato Streams - Sonoma County Central GIS and Sonoma Water SONOMA VALLEY Managed Wetlands - Department of Water Resources, 2014 Crop Mapping GROUNDWATER Elevation - Sonoma County Vegetation Mapping and LiDAR Program SUSTAINABILITY AGENCY 0 1 2 4 Miles • North American Vertical Datum 1988 (NAV88)

Filepath: T:\water transmission\Water_Supply\X0205P006-Groundwater-Sonoma\SonomaValley_GSA_Topography, SurfaceWaterDrainage_v3.mxd Date prepared: 11/1/2018 Figure 2-3 Jurisdictional ¤£128 and Protected Areas

Hood Mountain Regional Park Sonoma Valley Hood Mountain Sugarloaf Groundwater Ridge D Subbasin/Groundwater State Park Sustainability Agency

City of Contributing Watershed Area Santa Rosa 0 Annadel Kenwood State Park Plaza Calabazas Protected Areas Park Creek Open Space Preserve Agency Type

City

29 Bouverie ¤£ County Glen Wildflower • Oaks Preserve Ranch Secret Pasture Federal Sonoma • Valley Napa County Regional Park Non Profit Sonoma County •D Sonoma Development Special District Jack London Center State Historic Park • State BLM ¤£12 • County Line Valley of the Moon Other State Lands Water District Mutual Water Companies City of Valley of the Moon Sonoma Water District North Bay Water District

Arnold Drive ¤£221

Napa-Sonoma Marshes Wildlife Area ¤£116 North Bay Water District Tolay Lake Regional Park ¤£121

Tolay Creek Ranch

¤£101 Sonoma County Marin County

´ ¤£37 San Pablo Bay

Data Sources: Groundwater Basins - California Department of Wate rResources, Bulletin 118 I I I Protected Areas - California Protected Areas Database, 2017 holdings 0 1 2 4 Miles Other State Lands - California Department Forestry and Fire Protection

Filepath: T:\water transmission\Water_Supply\X0205P006-Groundwater-Sonoma\SonomaValley_GSA_JursidctionalAndProtectedAreas_v5.mxd Date prepared: 11/2/2018 St Helena 128 Santa Rosa ¤£ Figure 2-4a Historical Land Use (1999)

= County Line Sonoma Valley D Groundwater Subbasin Contributing Watershed a Area Napa County f22) City Footprints Sonoma County Residential • Native Vegetation or Water Vineyards YountvilleIrrigated Agricultural 29 Non-irrigated¤£ Agricultural • Urban mixed residential • commerical/industrial Commerical/Industrial • Vacant Rohnert • Park Note: Agricultural lands include golf courses and parks

Napa ¤£12

Sonoma

Arnold Drive

Petaluma ¤£116

¤£121 ¤£101

Sonoma County Marin County ¤£37

´ San Pablo Bay Novato Data Sources: SONOMA VALLEY Groundwater Basins - California Department of Water Resources, Bulletin 118 GROUNDWATER SUSTAINABILITY AGENCY Land Use Survey - Department of Water Resources • Novato 0 1 2 4 Miles

Filepath: T:\water transmission\Water_Supply\X0205P006-Groundwater-Sonoma\SonomaValley_GSA_LandUse_recent_v5.mxd Date prepared: 11/2/2018 St Helena 128 Santa Rosa ¤£ Figure 2-4b Recent Land Use (2012)

= County Line Sonoma Valley D Groundwater Subbasin Contributing Watershed a Area Napa County f22) City Footprints Sonoma County Residential • Native Vegetation or Water Vineyards YountvilleIrrigated Agricultural 29 Non-irrigated¤£ Agricultural • Urban mixed residential • commerical/industrial Commerical/Industrial • Vacant Rohnert • Park Note: Agricultural lands include golf courses and parks

Napa ¤£12

Sonoma

Arnold Drive

Petaluma ¤£116

¤£121 ¤£101

Sonoma County Marin County ¤£37

´ San Pablo Bay Novato Data Sources: SONOMA VALLEY Groundwater Basins - California Department of Water Resources, Bulletin 118 GROUNDWATER SUSTAINABILITY AGENCY Land Use Survey - Department of Water Resources Novato 0 1 2 4 Miles

Filepath: T:\water transmission\Water_Supply\X0205P006-Groundwater-Sonoma\SonomaValley_GSA_LandUse_recent_v5.mxd Date prepared: 11/2/2018 St Helena Figure 2-4c Land Use, Crops ¤£128 and Vegetation

Santa Rosa Sonoma Valley Groundwater D Subbasin a Contributing Watershed Area Agriculture Class Annual Cropland Napa County 1111 Sonoma County Intensively Managed 1111 Hayfield Irrigated Pasture 1111 Orchard or Grove Yountville Vegetation (2013) ¤£29 Condensed Class Conifer, Hardwood and 1111 Unclassified Forest 1111 Herbaceous and Grassland 1111 Water 1111 Herbaceous Wetland 1111 Riparian Forest and Shrub Non-native Forest and 1111 Shrub 12 ¤£ 1111 Vineyard Napa 1111 Barren 1111 Developed and Built Up Sonoma @ City Footprints = County Line

Arnold Drive ¤£221

Petaluma ¤£116

¤£121

American Canyon ¤£101

Sonoma County Marin County ¤£37

´ San Pablo Bay

Data Sources: Novato Groundwater Basins - California Department of Water Resources, Bulletin 118 SONOMA VALLEY Vegetation and Agriculture classes- Sonoma County LiDAR and Vegetation GROUNDWATER SUSTAINABILITY AGENCY Mapping Program and Sonoma County Water Agency 0 1 2 4 Miles Novato St Helena ¤£128 Figure 2-5 Water Sector and Water Use (Land Use) Type

Sonoma Valley D Groundwater Subbasin Sonoma Water Aqueduct Sonoma Creek Watershed Santa Rosa a Sonoma Developmental Center (primarily surface water) Napa County Sonoma County Recycled Water Parcels D (primarily recycled water and groundwater) Irrigated Agricultural • (primarily groundwater) Yountville Non-irrigated Agricultural 29 ¤£City of Sonoma (primarily D imported water and groundwater) Valley of the Moon Water District (primarily D imported water and groundwater) Native Vegetation or Water Vineyards (primarily groundwater)

12 Rural Residential ¤£ (primarily groundwater) • Napa Urban mixed residential commerical/industrial • (primarily groundwater) Sonoma Commerical/Industrial • (primarily groundwater) Vacant County Line Arnold Drive = City Footprints

Petaluma

¤£116 Sonoma Valley Treatment Plant

121 American ¤£ Canyon

¤£101 Recycled Water Pipeline

Sonoma County 37 ´ Marin County ¤£

San Pablo Bay

Novato Data Sources: SONOMA VALLEY Groundwater Basins - California Department of Water Resources, Bulletin 118 OUNDWATER Land Use Survey - Department of Water Resources, 2012 land use survey ~ t AINABILITY AGENCY 0 1 2 4 Miles • Water Infrastructure - Sonoma Water Novato

Filepath: T:\water transmission\Water_Supply\X0205P006-Groundwater-Sonoma\SonomaValley_GSA_WaterSectorWaterUse_v3.mxd Date prepared: 11/2/2018 St Helena 128 Santa Rosa ¤£ Figure 2-7a Monitored Wells

a Sonoma Creek Watershed Sonoma Valley Groundwater D Subbasin .... . Monitored wells . . . Shallow (0-200ft) .. .!.. . . Napa County .. Sonoma County . Medium (200-500ft) ...... Deep(>500ft) Arnold Drive . ! . Unkown Depth . County Line ! . ! .. !.!. YountvilleCity Footprints .. ¤£29 ...... !

Rohnert Park

. .. . Napa . 12 .. . ¤£ ...... ! . .. . ! ! . .! . ..! .. . !! . .. ! ! ...... Sonoma . . ..! . ! ...... ! . Arnold Drive ..! ... ! . ....!

! . Petaluma . ¤£116 . [ . !. . ..., ; ! '-( ( r) I ¤£121 \ ¤£101 \ j( \ \ \

Sonoma County Marin County ¤£37

´ San Pablo Bay Novato Data Sources: Groundwater Basins - California Department of Water Resources, Bulletin 118 Monitoring Wells - Department of Water Resources, CASGM, USGS, Sonoma NovatoWater 0 1 2 4 Miles

Filepath: T:\water transmission\Water_Supply\X0205P006-Groundwater-Sonoma\SonomaValley_GSA_Research_MonitoringWells_v3.mxd Date prepared: 10/24/2018 Figure 2-6 Water Wells ¤£128 DRAFT

Sonoma Valley 0 Groundwater Basin Santa Contributing Watershed Rosa a Area

Napa County ! Sonoma County Water wells Density of Wells (wells/sq. mile) 1111 150.1 - 284

YountvilleCJ 115.1 - 150 CJ¤£29 75.1 - 115 CJ 50.1 - 75 CJ 33.1 - 50 CJ 20.1 - 33 9 - 20 1111 0.1 - 8.9 CJ 0 = County Line City Footprints ¤£12 *Note: Water well location are approximate,Napa and single points may represent multiple wells. Wells of unkown types are presumed to be domestic water wells and are included in map. Mapped wells include those used for agriculture, bottling, domestic, Sonoma fire or frost protection, industrial use, public supply, stockwatering, or water supply

Arnold Drive

Petaluma ¤£116

¤£121 American Canyon

¤£101

Sonoma County ´ Marin County ¤£37

Data Sources: San Pablo Bay Groundwater Basins - California Department of Water Resources, Bulletin 118 Application (https://water.ca.gov/Programs/Groundwater-Management/Wells)Novato Water Wells and Well Density - by Sonoma County Water Agency with source data courtesy SONOMA VALLEY of California Department of Water Resources Online System for Well Completion GROUNDWATER Reports (OSWCR - https://data.cnra.ca.gov/dataset/well-completion-reports), SUSTAINABILITY AGENCY 0 1 2 4 Miles • Permit Sonoma, and the USGS

Filepath: T:\water transmission\Water_Supply\X0205P006-Groundwater-Sonoma\SonomaValley_GSA_WaterWells_v5.mxd Date prepared: 11/7/2018 St Helena 128 Santa Rosa Figure¤£ 2-7 b Stream Flow Monitoring Network

Sonoma Valley D Groundwater Subbasin Bear Creek !(!( )" Sonoma Creek !( !( D Watershed

!( !( Sonoma Creek Napa County !( Seepage Run Gauging !( Sonoma County !()"!( Location !( !( CalabasesCalabasas Creek StreamCreek Gauges !( Operator !( !( ") Trout Unlimited ") Yountville !( )" US Geologic29 Survey !( ") ")!( ¤£ ")!( !( )" One Rain

") Calabazas") Creek !( Major Rivers and !(") !( !( Creeks !( )" 12 Hooker Creek !( ¤£ Streams !( Rohnert County Line Park !( = !( !( Mill Creek !( Wilson Creek City Footprints !( !( !( !( !(

Napa !( )"!( !(

Dowdall Creek!( !( Arroyo Seco !( !( !( !( !( !( Carriger Creek !( )" !( !( !( !(

!( Nathanson Creek Sonoma )"!( !( !( !( Felder Creek !( !( !(

!( Arnold Drive !( !( !( !( Rogers Creek!( Sonoma Creek!(

Petaluma ¤£116

¤£101 ¤£121

Second Napa Slough Tolay Creek

Napa Slough

Sonoma County ´ Marin County ¤£37 San Pablo Bay Data Sources: Groundwater Basins - California Department of Water Resources, Bulletin 118 Novato Stream Gauge Locations - US Geologic Survey, Trout Unlimited Seepage Run Locations - Sonoma Ecology Center Major Rivers and Creeks - Department of Water Resources Streams - Sonoma County Central GIS and Sonoma Water Novato 0 1 2 4 Miles

Filepath: T:\water transmission\Water_Supply\X0205P006-Groundwater-Sonoma\SonomaValley_GSA_Research_StreamFlowNetwork_v3.mxd Date prepared: 10/23/2018 St Helena(! 128 Santa Rosa ¤£Figure 2-7 c Climate Stations (!(!(! Sonoma Valley D Groundwater Basin !. (! Sonoma Creek D Watershed (!!. CA-SN-104 !. Climate Stations CA-SN-0104(! Napa County !5 OneRain Sonoma County (! !5 cocorahs KEN !5 western weather \- !5 (! CoCoHasHS - Andy CIMIS!. -Andy Yountville(! County29 Line USC - 00046354 = CA-SN-100 !. ¤£ CA-SN-100(!!5. CA-SN- 0080 City Footprints (!!. CA-SN-80 (! CA-SN-70CA-SN-00070 !. 40207 (! CA-SN-40 !5 !5 Rohnert Park New PG&E Station F11 !5 (Redwood Road)

11458500 !5 Napa CA-SN-84 12 ¤£ (!!5.CA-SN-84 I !5.CA-SN-124 I // j.. I' I / 'Y·I USC - 00048351 ~k ~ !. I CA-SN-136!.5 CA-SN-136 ~ 11 ! ( !5 40224 \ Sonoma !. Jr CA-SN-115!5. CA-SN-115 CA-SN-0055 I F62 (! y !5 MAT CA-SN-137 !5 !5 !5 11458600 f ' ( \ I I Arnold Drive 't !. ) [ 40205 :f !5 (! Petaluma 116 l >' [ (! ¤£ 0 ..., ; (!109 '-( ( r) I ¤£121 \ ¤£101 \ j( \ \ \ \ I

Sonoma County Marin County ¤£37

´ San Pablo Bay Data Sources: Novato Groundwater Basins - California Department of Water Resources, Bulletin 118 SONOMA VALLEY 4 GROUNDWATER Climate Station Locations - US Geologic(! Survey, Comunity Collaborative Rain, Hail and Snow SUSTAINABILITY AGENCY Network (CoCoRaHS)(! and Nation Climatic Data Center, One Rain, Western Weather, and Sonoma Water Miles • Novato

Filepath: T:\water transmission\Water_Supply\X0205P006-Groundwater-Sonoma\SonomaValley_GSA_Research_ClimateStations_v3.mxd(! Date prepared: 10/23/2018

(! (!

(! Figure 2-8 General Plan ¤£128 Landuse Zoning

= County Line

Santa Rosa Sonoma Valley D Groundwater Subbasin Napa County Sonoma County Contributing Watershed D Area m City Footprints General Plan Land Use

Yountville Diverse Agriculture 29 ¤£ Land Extensive •- Agriculture Land Intensive Agricuture • General Commercial - Limited Commercial General Industrial -111 Limited Industrial Limited Commericial Traffic Sensitive 12 ¤£ - Public/Quasi-Public CITY OF SONOMA DETAIL - RuralNapa Residential - Urban Residdential Resources Rural Sonoma Development Recreation/Visitor-Serv... Commericial Arnold Drive • SPLIT 221 City• of Sonoma Land¤£ Use Commercial Petaluma • Industrial ¤£116 - K-12 School • Other - Agriculture Other - Open Space - Other - Urban Open ¤£121 - Other - Utility Residential American 12 Retail ¤£ - Canyon - Urban Park ¤£101 • CITY ¤£37 OF SONOMA ´ San Pablo Bay Novato Data Sources: SONOMA VALLEY Groundwater Basins - California Department of Water Resources, Bulletin 118 GROUNDWATER General Plan Land Use - Sonoma County Permit Resource Management Department, 2020 General Plan SUSTAINABILITY AGENCY City of Sonoma Land Use - City of Sonoma 0 1 2 4 Miles

Filepath: T:\water transmission\Water_Supply\X0205P006-Groundwater-Sonoma\SonomaValley_GSA_LandUse_zoning_v5.mxd Date prepared: 11/2/2018 St Helena 128 Santa Rosa Figure¤£ 2-9 Groundwater Availability Classifications

Sonoma Valley Groundwater Subbasin Contributing Watershed Area Permit Sonoma Groundwater Availability Classifications Napa County Sonoma County Areas with low or highly variable water yield Major groundwater basin Marginal groundwater CityYountville Footprints County Line ¤£29

Rohnert Park

Napa ¤£12

Sonoma

Arnold Drive

Petaluma ¤£116

¤£121 ¤£101

Sonoma County Marin County ¤£37

´ San Pablo Bay Novato Data Sources: Groundwater Basins - California Department of Water Resources, Bulletin 118 Groundwater Availability - Sonoma County Permit and Resource Management Department (Permit Sonoma) Novato 0 1 2 4 Miles

Filepath: T:\water transmission\Water_Supply\X0205P006-Groundwater-Sonoma\SonomaValley_GSA_GroundwaterAvailability_v3.mxd Date prepared: 11/2/2018 Figure 2-6b:

LIGHTER COLORED COLUMN AREAS ARE DEPLETION AREA PERMIT NUMBERS FOR 2012-2018