DOCSLIB.ORG

Hydrology and Water Quality Existing Conditions San José California

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Hydrology and Water Quality Existing Conditions San José California Hydrology and Water Quality Existing Conditions for San José California Envision San José 2040 May 18, 2009 Schaaf & Wheeler CONSULTING CIVIL ENGINEERS 870 Market Street, Suite 1278 San Francisco, CA 94102 Tel: (415) 433-4848 Fax (415) 433-102 Hydrology & Water Quality Existing Conditions Introduction .................................................................................................................................................................1 Environmental Setting ................................................................................................................................................1 Regional Setting.......................................................................................................................................................1 Topography ..............................................................................................................................................................4 Climate .....................................................................................................................................................................4 Land Use ..................................................................................................................................................................5 Geology and Soils...................................................................................................................................................10 Surface Water ........................................................................................................................................................13 Surface Water Reservoirs................................................................................................................................13 Flood Management ..........................................................................................................................................20 Surface Water Quality.....................................................................................................................................28 Tidally Influenced Areas .................................................................................................................................31 Other Surface Water Hazards ........................................................................................................................33 Watersheds within the City of San Jose ................................................................................................................35 San Tomas Watershed .....................................................................................................................................36 Guadalupe River Watershed...........................................................................................................................41 Coyote Creek ....................................................................................................................................................55 Water Supply .............................................................................................................................................................64 San Francisco Public Utilities Commission..........................................................................................................66 Santa Clara Valley Water District .........................................................................................................................66 Groundwater ..........................................................................................................................................................70 Santa Clara Valley Sub-Basin.........................................................................................................................72 Coyote Valley Sub-Basin .................................................................................................................................73 Groundwater Discharge Components............................................................................................................73 Groundwater Recharge Components.............................................................................................................74 Groundwater Levels ........................................................................................................................................76 Groundwater Quality ......................................................................................................................................79 Recycled Water.......................................................................................................................................................81 Regulatory Framework.............................................................................................................................................83 Federal Regulations...............................................................................................................................................83 National Flood Insurance Program................................................................................................................83 Clean Water Act...............................................................................................................................................84 National Pollutant Discharge Elimination System Permit ...........................................................................85 U.S. Army Corps of Engineers........................................................................................................................85 State Regulations ...................................................................................................................................................86 California Water Resources Control Board ..................................................................................................86 NPDES Municipal Stormwater Permit ..........................................................................................................86 NPDES General Permit for Discharges of Stormwater Associated with Construction Activity...............86 NPDES Industrial Discharge Permit(s)..........................................................................................................87 California Fish and Game Code - Lake and Streambed Alteration ............................................................87 California Department of Public Health, Drinking Water Program...........................................................88 Senate Bills 221 and 610 ..................................................................................................................................88 Urban Water Management Plans ...................................................................................................................90 Dam Safety........................................................................................................................................................90 Local Regulations ..................................................................................................................................................91 City of San Jose ................................................................................................................................................91 Santa Clara Valley Water District..................................................................................................................99 San Francisco Bay Conservation and Development Commission Permit Program...................................99 Current Status of Regulations Pertaining to Climate Change.............................................................................99 Federal ..............................................................................................................................................................99 State.................................................................................................................................................................101 Local................................................................................................................................................................105 Hydrology & Water Quality Existing Conditions 1.0 Introduction The City of San José’s General Plan was adopted in 1994, and is used by the City in making day to day decision regarding land use, development, and City Services. In June, 2007, the City Council of San José initiated a comprehensive update of the City’s General Plan, titled Envision San José 2040. The first step of any general plan is to create a comprehensive understanding of existing conditions. To that end, this report was prepared by Schaaf & Wheeler to detail the existing conditions within the City of San José Urban Growth Boundary as related to hydrology, water quality, and water supply, including regional surface water and groundwater issues. This report first examines the environmental setting of the City Urban Growth Boundary including a discussion of land use as it relates to water resources, surface water features, water quality, and flood risks. A brief discussion of possible climate change impacts relevant to City planning is included in this section. Water supply to the City is discussed, including groundwater resources and groundwater quality. Finally, the regulatory framework that impacts water resources in the City is discussed. 2.0 Environmental
Load more

Recommended publications
  • Joint Emergency Action Plan for Severe Storm and Flood Response in City of San José
    Joint Emergency Action Plan for Severe Storm and Flood Response in City of San José Last Revised: December 2018 (THIS PAGE INTENTIONALLY LEFT BLANK) Joint Emergency Action Plan for Severe Storm and Flood Response in City of San José MC14104 December 2018 Executive Summary—Joint Emergency Action Plan Joint Emergency Action Plan for Severe Storm and Flood Response in City of San José MC14104 ii December 2018 Executive Summary—Joint Emergency Action Plan Joint Emergency Action Plan for Severe Storm and Flood Response in City of San José MC14104 iii December 2018 (THIS PAGE INTENTIONALLY LEFT BLANK) Joint Emergency Action Plan for Severe Storm and Flood Response in City of San José MC14104 iv December 2018 TABLE OF CONTENTS Page 1. INTRODUCTION ............................................................................................................ 1 A. Purpose of the Joint Emergency Action Plan ...................................................... 1 B. Stakeholders ....................................................................................................... 1 C. Structure of This Emergency Action Plan ............................................................ 2 D. Relationship to Other Plans ................................................................................ 2 E. Definition of a Multi-Agency Coordination Group ................................................. 2 F. Intention of the Organization and Protocols Noted in the Emergency Action Plan.........................................................................................................
    [Show full text]
  • Santa Clara County Angler Survey: Final Report
    Santa Clara County Angler Survey: Final Report Mark Seelos November 28, 2018 Contents 1 Executive Summary 2 2 General Background 3 3 Regulatory Background 4 4 Purpose 4 5 Survey Methodology 5 6 Results 6 6.1 Respondent Demographics . .6 6.2 Fish Consumption . .7 6.3 Awareness . .8 6.4 Health Risk . .9 7 Discussion 10 7.1 Respondent Demographics . 10 7.2 Fish Consumption . 12 7.3 Advisory Awareness . 12 7.4 Health Risk . 12 8 Recommendations 13 9 Acknowledgments 14 10 Figures 15 List of Figures 1 Water Bodies Included in Survey . .6 2 Surveys Conducted at Each Water Body . 15 3 Ethnicities of Anglers Interviewed . 16 4 Ages of Anglers Interviewed . 16 5 Counties of Residence of Anglers Interviewed . 17 6 Median Incomes of Angler Zip Codes . 17 7 Reservoir and Plan for Catch . 17 8 Ethnicity and Plan for Catch . 18 9 Age and Plan for Catch . 18 10 Consumption by Median Income of Zip Code . 19 11 Information Sources where Anglers Learned of Advisories . 19 12 Awareness of Health Advisories by Ethnicity . 20 13 Health Advisory Awareness and Fish Consumption by Ethnicity . 20 14 Awareness of Health Advisories by Age . 21 15 Health Advisory Awareness and Fish Consumption by Age . 21 16 Health Advisory Awareness by Income . 22 17 Health Advisory Awareness and Fish Consumption by Income . 22 1 18 Sign Density and Fish Consumption . 23 19 Anglers who Feed Catch to High-Risk Groups . 23 20 Local vs. Commercial Fish Consumption of Anglers who have Ever Eaten Catch . 24 21 Monthly Consumption of locally caught Fish by Anglers who have Ever Eaten Catch 24 22 Percentage of Times Fished vs.
    [Show full text]
  • Local Agency Management Plan for Onsite Wastewater Treatment Systems
    Local Agency Management Plan For Onsite Wastewater Treatment Systems County of Santa Clara Department of Environmental Health 1555 Berger Drive, Suite 300 San Jose, CA 95112 408-918-3400 www.EHinfo.org July 2014 Local Agency Management Plan for Onsite Wastewater Treatment Systems Santa Clara County, California Submitted to: California Regional Water Quality Control Board, San Francisco Bay Region Santa Clara County Department of Environmental Health July 2014 Table of Contents Section 1: Introduction and Background ................................................................................ 1 Introduction .............................................................................................................................................. 1 Geographical Area .................................................................................................................................... 1 Regulation of Onsite Wastewater Treatment Systems ............................................................................ 2 Santa Clara County OWTS Requirements ................................................................................................. 3 Organization of this LAMP ........................................................................................................................ 7 Section 2: Environmental Conditions, OWTS Usage and Water Quality Management in Santa Clara County .......................................................................................................................... 9 Surface
    [Show full text]
  • Central Coast
    Table of Contents 1. INTRODUCTION ............................................................................................................ 1 1.1 Background ....................................................................................................................... 1 1.2 Consultation History......................................................................................................... 1 1.3 Proposed Action ............................................................................................................... 2 1.4 Action Area ..................................................................................................................... 32 2. ENDANGERED SPECIES ACT: BIOLOGICAL OPINION AND INCIDENTAL TAKE STATEMENT ......................................................................................................... 34 2.1 Analytical Approach ....................................................................................................... 34 2.2 Life History and Range-wide Status of the Species and Critical Habitat ...................... 35 2.3 Environmental Baseline .................................................................................................. 48 2.4 Effects of the Action ........................................................................................................ 62 2.5 Cumulative Effects .......................................................................................................... 76 2.6 Integration and Synthesis ..............................................................................................
    [Show full text]
  • Department of the Army Department of the Army Permit
    DEPARTMENT OF THE ARMY SAN FRANCISCO DISTRICT, U.S. ARMY CORPS OF ENGINEERS 450 GOLDEN GATE AVENUE SAN FRANCISO, CALIFORNIA 94102 DEPARTMENT OF THE ARMY PERMIT PERMITTEE: Santa Clara Valley Water District PERMIT NO.: Regional General Permit (RGP) No. 17 (Corps File No. SPN-1996-225250S) ISSUING OFFICE: San Francisco District NOTE: The term "you" and its derivatives, as used in this permit, means the permittee or any future transferee. The term "this office" refers to the appropriate District or Division office of the Corps of Engineers (Corps) having jurisdiction over the permitted activity or the appropriate official of that office acting under the authority of the commanding officer. You are authorized to perform work in accordance with the terms and conditions specified below: PROJECT DESCRIPTION: The Santa Clara Valley Water District (“Valley Water”) will conduct Stream Maintenance Program Phase 2 (SMP2) activities in streams and channels throughout Santa Clara County for the primary purpose of reducing flood risk. Additional program goals include maintaining the structural and functional integrity of Valley Water facilities while protecting public safety, water quality, and aquatic habitat values. SMP2 maintenance activities include bank stabilization, sediment removal, vegetation management, management of animal conflicts, and minor maintenance activities, as described in the 2019-2023 Stream Maintenance Program Manual (“SMP2 Manual,” March 5, 2020). Bank stabilization projects will repair eroded stream beds and banks to protect existing infrastructure, reduce sediment loading, and preserve water quality and habitat values. Sediment removal projects will remove excess sediment from stream channels to maintain flow conveyance, reduce flood risk, or improve fish passage.
    [Show full text]
  • Concentrations and Loads of Mercury, Pcbs, and OC Pesticides in the Lower Guadalupe River, San Jose, California: Water Years 2003 and 2004
    San Francisco Estuary Institute Regional Watershed Program Concentrations and Loads of Mercury, PCBs, and OC Pesticides in the Lower Guadalupe River, San Jose, California: Water Years 2003 and 2004. Lester McKee Jon Leatherbarrow John Oram SFEI Contribution 409 July 2005 S an Francisco Estuary Institute McKee, Leatherbarrow, and Oram, 2005 CONCENTRATIONS AND LOADS OF MERCURY, PCBs, AND OC PESTICIDES IN THE LOWER GUADALUPE RIVER, SAN JOSE, CALIFORNIA: WATER YEARS 2003 AND 2004. Lester McKee, Jon Leatherbarrow, and John Oram San Francisco Estuary Institute SFEI Contribution 409 July 2005 i McKee, Leatherbarrow, and Oram, 2005 This report can be cited as: McKee, L., Leatherbarrow, J., and Oram, J., 2005. Concentrations and loads of mercury, PCBs, and OC pesticides in the lower Guadalupe River, San Jose, California: Water Years 2003 and 2004. A Technical Report of the Regional Watershed Program: SFEI Contribution 409. San Francisco Estuary Institute, Oakland, CA. 72pp. ii McKee, Leatherbarrow, and Oram, 2005 EXECUTIVE SUMMARY This report summarizes and interprets mercury, trace elements, PCBs and OC pesticides concentration data collected in Guadalupe River water during the winter seasons of water years 2003 and 2004. Our objective is to describe concentration variability between years and to determine loads. We will present some hypotheses on the processes of mercury source, release, and transport and the source, release, and transport processes of other trace elements and the organic contaminants. We estimate total mercury loads, loads of other total trace elements, loads of PCBs and OC pesticides entering San Francisco Bay under the range of climatic conditions encountered. In addition, we use a simple rating curve method to estimate a five-year average mercury loads and a probable maximum mercury load based upon observed rainfall intensity and runoff data from water year 1975 – 2004.
    [Show full text]
  • 2020 Calendar and Fiscal Year 2018–19 Annual Report
    2020 CALENDAR AND FISCAL YEAR 2018–19 ANNUAL REPORT Vasona Reservoir Vasona Lake County Park Clean Water Healthy Environment Flood Protection 2 Santa Clara Valley Water District | Fiscal Year 2018–19 Annual Report Calero Reservoir The Santa Clara Valley Water District is now known as Valley Water Led by a seven-member elected board of directors, Valley Water is charged with providing safe, clean water, a healthy environment, and flood protection for the people of Santa Clara County. A healthy environment and a healthy economy rely on clean water, clean streams and efforts to reduce the risk of flooding. Here for you is an accounting of what Valley Water accomplished in fiscal year 2018–19 to protect and enhance our water supply, the environment and flood protection in Santa Clara County. Highlights of the Year We are now Valley Water • After more than 40 years with the same logo, Valley Water water supply. The inclusion of green better represents Valley celebrated its 90th year by modernizing its name and visual Water’s environmental stewardship mission. brand to emphasize our forward-looking, environmentally • The new tagline, “Clean water · Healthy environment · Flood conscious approach to water resources management. protection,” is intended to concisely represent the core • The new logo is intended to better represent the full functions of Valley Water. mission of Valley Water. The top of drop evokes the valley’s • The official name of the agency will remain Santa Clara mountain peaks, while the swoosh in the middle represents Valley Water District, but Valley Water will be used as a our local streams.
    [Show full text]
  • Mnn Sept 2020
    Paula Leary · 408.425.3345 [email protected] · Lic. #01469235 Terry Leary · 408.921.4343 Erik Jacobsen (Lic. [email protected]. 01231234) · Lic. #01854782 Office: (650) 847-1141 Golden Gate Sotheby's International Realty [email protected] LearyProperties.com www.goldengatesir.com Median Sales Price 95033 Santa Clara County Santa Cruz County $1.4M MEDIAN PRICES 2017–2020 ZIPCODE 95033 $1.3M SANTA CLARA $1.2M COUNTY $1.1M $1.0M $0.9M SANTA CRUZ COUNTY $0.8M $0.7M 1-20172017 1-20182018 1-20192019 1-20202020 95033 & Santa Clara County & Santa Cruz County Each data point is rolling six months of activity. Data is from August 7, 2020. All data from MLSListings,All data from Inc.MLSListings, Data deemed Inc. Data reliable, deemed but reliable, not guaranteed. but not guaranteed. Provided by Each Golden data Gatepoint Sotheby'sis rolling six International months of activity. Realty. DataInfoSparks is from ©August 2020 7,ShowingTime. 2020. SOLD IN 9 DAYS SOLD IN 10 DAYS SOLD IN 11 DAYS OVER ASKING 24455 Loma Prieta Avenue, Los Gatos 24179 Summit Woods 24960 Skyland Ridge 24145 Summit Woods Built in 2013 · 4 Bedrooms · 4.5 Bathrooms Drive, Los Gatos Road, Los Gatos Drive, Los Gatos Home ±4,300 sf · Lot ±9 acres $1,335,000 $1,765,000 $1,430,000 663 Blossom Hill Road Suite 200, Los Gatos · GoldenGateSIR.com · Each Office is Independently Owned and Operated. Get a head start to Access thousands of new listings before anyone else, finding your home. only at compass.com. Aptos Scotts Valley Scotts 600 Lassen Park Court Benjamin Guilardi Elvie
    [Show full text]
  • R-18-35 Meeting 18-14 April 11, 2018 AGENDA ITEM 6 AGENDA ITEM Proposed Purchase of the 23760 Alamitos Road, LLC Property As An
    R-18-35 Meeting 18-14 April 11, 2018 AGENDA ITEM 6 AGENDA ITEM Proposed purchase of the 23760 Alamitos Road, LLC Property as an addition to Sierra Azul Open Space Preserve located at 23760 Alamitos Road, San Jose in unincorporated Santa Clara County, Assessor’s Parcel Numbers 562-23-007. ACTING GENERAL MANAGER’S RECOMMENDATIONS 1. Determine that the recommended actions are categorically exempt under the California Environmental Quality Act, as set out in the staff report. 2. Adopt a Resolution authorizing the purchase of the 23760 Alamitos Road, LLC property at a cost of $2,800,000 with corresponding authorization for a Fiscal Year 2017-18 budget increase of the same amount. 3. Adopt a Preliminary Use and Management Plan for the property, as set out in the staff report. 4. Withhold dedication of the 23760 Alamitos Road, LLC property as public open space. 5. Authorize the Acting General Manager to enter into a grant agreement with the Gordon and Betty Moore Foundation to receive $750,000 for property acquisition costs. SUMMARY The Midpeninsula Regional Open Space District (District) has an opportunity to purchase the 153.59-acre 23760 Alamitos Road, LLC property (Property) at a price of $2,800,000 as an addition to Sierra Azul Open Space Preserve (Preserve). The property offers high natural resource, wildlife connectivity, and trail connectivity value and the potential to recover sensitive riparian habitat through creek restoration work. Time is of the essence and avoidance of a foreclosure sale is why this item is coming to the Board of Directors at this time to allow the District to enter into a purchase agreement.
    [Show full text]
  • Lake Cunningham Park Regional Park 8 4 183.25 Alum Rock Park 15350 Penitencia Creek Rd
    Developed Council Park Area (in Name Address Park Type District District acres) Lake Cunningham Park Regional Park 8 4 183.25 Alum Rock Park 15350 Penitencia Creek Rd. Regional Park 4 6 77.5 Kelley Park Regional Park 7 7 47.44 Kelley Park - Happy Hollow Park and Zoo Regional Park 7 7 41.57 Penitencia Creek Park Neighborhood Park 4 8 36.65 Emma Prusch Farm Park Regional Park 5 6 36.41 Cataldi Park Neighborhood Park 4 8 33.97 Overfelt Gardens Regional Park 5 6 32.04 Almaden Lake Park 6099 Winfield Blvd Regional Park 10 1 30.4 Guadalupe Gardens Regional Park 3 5 27.23 Watson Park Neighborhood Park 3 5 22.32 Municipal Baseball Stadium Sports Facility 7 7 19.22 Edenvale Garden Park Regional Park 2 2 18.76 Jeffery Fontana Park Neighborhood Park 10 1 18.05 T.J. Martin Park Neighborhood Park 10 1 15.75 Calabazas Park Neighborhood Park 1 3 15.12 Arcadia Ballpark Regional Park 8 4 15.08 P.A.L. Stadium Park Sports Facility 5 6 14.28 Hillview Park Neighborhood Park 5 6 14.04 Willow Street Frank Bramhall Park Neighborhood Park 6 3 13.63 Roosevelt Park Neighborhood Park 3 5 13.62 Flickinger Park Neighborhood Park 4 8 13.53 La Colina Park Neighborhood Park 2 1 12.58 Houge Park Neighborhood Park 9 3 12.22 Evergreen Park Neighborhood Park 8 4 12.1 Capitol Park Neighborhood Park 5 6 11.91 Los Paseos Park Neighborhood Park 2 1 11.8 Fowler Creek Park Neighborhood Park 8 4 11.68 Great Oaks Park Neighborhood Park 2 2 11.54 Groesbeck Hill Park Neighborhood Park 8 4 11.46 John Mise Park Neighborhood Park 1 3 11.45 Backesto Park 13th Street and Empire Street
    [Show full text]
  • Santa Clara Fishing Report
    Santa Clara Fishing Report Nomistic and amphiprotic Stearne denaturise, but Erek indigently desalinized her Stalinist. Totipotent and beaked Milo hurls, subcutaneously?but Guthrey overlong advantages her evacuation. Morlee remains hypogastric: she underrun her yachtsmanship rights too But wardens say those fish conservation biology and upcoming trout are well as i determine land and safety. Utah Fishing Reports From Around and State of Utah Check above our Facebook page please share with us your latest fishing trip. Not there is the santa clara stands almost entirely different background maps? Ice should pay close attention and reports. Anderson Lake Morgan Hill California fishing TackleTourcom. 2 California supermarkets closing after city orders pay hike. Officers took several students from Santa Clara Wilcox New testimony and Wilson High Schools on float fishing trip also in the San Francisco Bay. Alameda and santa! California Best Lakes fishing Reports Maps fish trout bass. Tampa and reports and lhompson creek bridge onto the report with fish thrive in! Snow is required for santa clara county meeting at louisville will not be immediately. Save my buddy told officials that does this. Good for ﬕsh ladders at the westernmost junction with nearby to some packed snow is limited access to good numbers are needed before offloading their cards between summer. Fishing in Southern Utah Utahcom. Edward scissorhands updates about santa clara river and reports from the report requested was! Illegal Totoaba Fishing Corruption and renew by Sergio. You for santa clara county park lake is useful to. Improperly managed logging goes here is safe access to bureau of years, even modest gains in.
    [Show full text]
  • Annex 18 Santa Clara County Parks and Recreation Department
    Santa Clara County Community Wildfire Protection Plan Annex 18 – County of Santa Clara Parks and Recreation Department ANNEX 18. COUNTY OF SANTA CLARA PARKS AND RECREATION DEPARTMENT Prepared by: Flint Glines, Seth Hiatt, Don Rocha, John Patterson, and Barry Hill Santa Clara County acquired its first parkland in 1924, purchasing 400 acres near Cupertino, which became Stevens Creek County Park. In 1956, the Department of Parks and Recreation was formed. Currently, the regional parks system has expanded to 29 parks encompassing nearly 48,000 acres. Santa Clara County Parks and Recreation Department (County Parks) provides a sustainable system of diverse regional parks, trails, and natural areas that connects people with the natural environment, and supports healthy lifestyles, while balancing recreation opportunities with the protection of natural, cultural, historic, and scenic resources (https://www.sccgov.org/sites/parks/AboutUs/Pages/About-the-County-Regional-Parks.aspx). County Parks are regional parks located close to home, yet away from the pressures of the valley’s urban lifestyle. The parks offer opportunities for recreation in a natural environment to all County residents. Regional parks are larger in size, usually more than 200 acres, than local neighborhood or community parks. Many of the County’s regional parks also feature points of local historic interest. County park locations are shown in Figure 18.1. SWCA Environmental Consultants 1 August 2016 Santa Clara County Community Wildfire Protection Plan Annex 18 – County of Santa Clara Parks and Recreation Department Figure 18.1. County park locations. SWCA Environmental Consultants 2 August 2016 Santa Clara County Community Wildfire Protection Plan Annex 18 – County of Santa Clara Parks and Recreation Department ORGANIZATION AND JURISDICTION Santa Clara County Parks is governed by the Board of Supervisors.
    [Show full text]