Alternative Periodic Evaluation

3-003.01 LLAGAS AREA

Base Information

12/17/2021

01/06/2022

03/22/2022
Public Comments 

Vanessa De La Piedra (Santa Clara Valley Water District)
5750 Almaden Expressway
(408) 630-2788408-630-2788
vdelapiedra@valleywater.org

Santa Clara Valley Water District - Llagas Area

Notice Date:
Public Hearing Date: 11/23/2021
Two public notices on: November 7, 2021 November 17, 2021 The public hearing was November 23, 2021.

Plan Contents

Alternative Periodic Evaluation (88.2MB)
Elements of the Periodic Evaluation

Supporting Information

File Name GSP Regulation Element(s) Uploaded Date & Time

References

Title Publication Name Publish Date Author(s) File Name or URL
Historical Vegetation and Drainage Patterns of Western Santa Clara Valley: A technical memorandum describing landscape ecology in Lower Peninsula, West Valley, and Guadalupe Watershed Management Areas San Francisco Estuary Institute Publication 2010-11-01 Beller, EE, MN Salomon Grossinger, RM
Empirical Model-Building and Response Surfaces Wiley & Sons, book 1987-01-16 Box, George E. and Draper, Norman R.
South County Subsidence Study – Phase I and Phase II University of California, Berkeley 2005-01-01 Bürgmann and Johanson
Stormwater Effects Handbook : a toolbox for watershed managers, scientists, and engineers CRC Press 2002-04-29 Burton, G. and Pitt, R.
Evaluation of Groundwater Resources, South San Francisco Bay, Appendix A: Geology 1970-01-01 California Department of Water Resources
Evaluation of Groundwater Resources, South San Francisco Bay, Volume IV: South Santa Clara Area 1981-01-01 California Department of Water Resources
California's Groundwater 2003-01-01 California Department of Water Resources
Guidance document for the sustainable management of groundwater - Guidance for climate change during groundwater sustainability plan development 2018-07-01 California Department of Water Resources
Water in the Santa Clara Valley: A History 2005-01-01 California History Center & Foundation,
Santa Clara Valley Investigation 1970-06-01 California State Water Resources Control Board
Santa Clara Valley Water District Act 2009-01-01 California Statutes
Santa Clara Valley Groundwater Model Project, Basinwide Groundwater Flow Model, Draft Technical Memorandum 1992-01-01 CH2M HILL
Santa Clara Valley Groundwater Model Project, Hydrogeologic Interpretation, Draft technical memorandum 1992-01-01 CH2M HILL
Coyote Valley Groundwater report 2000-01-01 CH2M HILL for Metcalf Energy Center
Llagas Basin Numerical Groundwater Model Report 2005-01-01 CH2M HILL for Santa Clara Valley Water District
Ground water in Santa Clara Valley, California U.S. Geological Survey 1970-01-01 Clark, W.O.
Hydrogeologic Analysis of the Santa Clara Valley Groundwater Basin Stanford University 1991-01-01 Carroll, G.R.
Central Coast Ambient Monitoring Program 2021-12-15 Central Coast Regional Water Quality Control Board
Onsite Wastewater Treatment Systems, Ordinance No. NS-517.85 2013-12-01 County of Santa Clara
Preliminary Geologic Map of the San Jose East Quadrangle, Santa Clara County, California U.S. Geological Survey 1972-01-01 Dibblee, T.W. Jr
Subsidence thresholds in the north county area of Santa Clara Valley Geosciences Support Services, Inc 1991-10-01 Geosciences Support Services
Geologic Map of the San Francisco Bay Region U.S. Geological Survey 2006-01-01 Graymer R.W., Moring B.C., Saucedo G.J., Wentworth C.M., Brabb E.E., and. Knudsen K.L
Coyote Creek Watershed Historical Ecology Study: Historical Condition, Landscape Change, and Restoration Potential in the Eastern Santa Clara Valley, California San Francisco Estuary Institute 2006-01-01 Grossinger, RM, RA Askevold, CJ Striplen, E Brewster, S Pearce, KN Larned, LJ McKee, and JN Collins
Hydrologic Framework of the Santa Clara Valley, California Geosphere 2015-01-01 Hanson, R.T.
Flatland Deposits of the San Francisco Bay Region, California: Their Geology and Engineering Properties and Their Importance to Comprehensive Planning U.S. Geological Survey 1979-01-01 Helley, E.J., and K.R. Lajoie
Hydrogeology of the Santa Clara and Coyote Valleys Groundwater Basins, California:, Recent Geologic Studies in the San Francisco Bay Area Pacific Section of the Society of Economic Paleontologists and Mineralogists 1995-01-01 Iwamura, T. I.
California Aquifer Susceptibility, A Contamination Vulnerability Assessment for the Santa Clara and San Mateo County Groundwater Basins 2004-01-01 Lawrence Livermore National Laboratory
An enhanced archive facilitating climate impacts and adaptation analysis Bulletin of the American Meteorological Society 2014-01-01 Maurer, E. P., L. Brekke, T. Pruitt, B. Thrasher, J. Long, P. Duffy, M. Dettinger, D. Cayan, and J. Arnold
A modular three-dimensional finite-difference ground-water flow model U.S. Geological Survey 1988-01-01 McDonald, M.G., and Harbaugh, A.W
Streamflow Gains and Losses along San Francisquito Creek and Characterization of Surface-Water and Ground-Water Quality, Southern San Mateo and Northern Santa Clara Counties, California U.S. Geological Survey 2002-01-01 Metzger, L.F.
Geologic, Water-Chemistry, and Hydrologic Data from Multiple-Well Monitoring Sites and Selected Water-Supply Wells in the Santa Clara Valley, California, 1999–2003 U.S. Geological Survey 2004-01-01 Newhouse, M.W., R.T. Hanson, C.M. Wentworth, R.R. Everett, C.F. Williams, J.C. Tinsley, T.E. Noce, and B.A. Carkin
A road map to manage our water resources 2016-10-04 One Water Plan
Statistical Downscaling Using Localized Constructed Analogs (LOCA). Journal of Hydrometeorology 2014-01-01 Pierce, D.W., Cayan, D.R., Thrasher, B.L.,
Land Subsidence in the Santa Clara Valley, California, as of 1982 U.S. Geological Survey 1988-01-01 Poland, J.F. and R.L. Ireland
Assessment of Contamination from Leaks of Hazardous Materials in Santa Clara Groundwater Basin 1985-01-01 San Francisco Water Board
Santa Clara County Code, Title B, Division B11, Chapters IV and V 1998-01-01 Santa Clara County
Santa Clara Valley Water District website Santa Clara Valley Water District
Saltwater Intrusion Investigation in the Santa Clara County Baylands Area Santa Clara Valley Water District 1980-01-01 Santa Clara Valley Water District
Standards for the Construction and Destruction of Wells and Other Deep Excavations in Santa Clara County 1998-01-01 Santa Clara Valley Water District,
Private Well Water Testing Nitrate Data Report Santa Clara Valley Water District 1998-01-01 Santa Clara Valley Water District
An Analysis of the Sensitivity to Contamination of the Santa Clara Valley Groundwater Aquifers Based on the USEPA Drastic Methodology 1999-01-01 Santa Clara Valley Water District
Operational Storage Capacity of the Coyote and Llagas Groundwater Subbasins. Santa Clara Valley Water District 2002-01-01 Santa Clara Valley Water District
Operational Storage of Santa Clara Valley Groundwater Basin Santa Clara Valley Water District 1999-01-01 Santa Clara Valley Water District
Study of Potential for Groundwater Contamination from Past Dry Cleaner Operations in Santa Clara County Santa Clara Valley Water District 2007-01-01 Santa Clara Valley Water District
South County Recycled Water Master Plan Project: Environmental Impact Report 2014-01-01 Santa Clara Valley Water District
Potential Groundwater Contamination from Intentional and Unintentional Stormwater Infiltration 1994-01-01 USEPA
Ground-water quality data in the San Francisco Bay study unit, 2007: Results from the California GAMA program U.S. Geological Survey 2009-01-01 USGS
Groundwater-quality data in the South Coast Interior Basins study unit, 2008: Results from the California GAMA program U.S. Geological Survey 2009-01-01 USGS
Physical Subdivision and Description of the Water-Bearing Sediments of the Santa Clara Valley, California U.S. Geological Survey 2015-01-01 USGS
Urban Water Management Plan Santa Clara Valley Water District 2015-01-01 Santa Clara Valley Water District
2016 Goundwater Management Plan: Santa Clara and Llagas Subbasins Santa Clara Valley Water District 2016-01-01 Santa Clara Valley Water District
Revised Final Salt and Nutrient Management Plan Santa Clara Valley Water District 2016-01-01 Santa Clara Valley Water District
FY 2020-21 Protection and Augmentation of Water Supplies, 49th Annual Report Santa Clara Valley Water District 2020-02-01 Santa Clara Valley Water District
FY 2021-22 Protection and Augmentation of Water Supplies, 50th Annual Report Santa Clara Valley Water District 2021-02-01 Santa Clara Valley Water District
5-Year Capital Improvement Program, FY 2017-2021 Santa Clara Valley Water District 2021-12-15 Santa Clara Valley Water District
FY 2017-2021 Water Utility Enterprise Operations Plan Santa Clara Valley Water District 2021-12-15 Santa Clara Valley Water District
2040 Water Supply Master Plan Santa Clara Valley Water District 2019-01-01 Santa Clara Valley Water District
2020 Urban Water Management Plan Santa Clara Valley Water District 2020-01-01 Santa Clara Valley Water District
ALERT System Real-Time Data Santa Clara Valley Water District 2021-12-15 Santa Clara Valley Water District
Time-Dependent Land Uplift and Subsidence in the Santa Clara valley, California, from a Large Interferometric Synthetic Aperture Radar Data Set Journal of Geophysical Research 2003-01-01 Schmidt, D.A. and R. Bürgmann
Seismicity and the Major Strike-Slip Faults Bordering The Santa Clara Valley, California Geological Society of America, Cordilleran Section - 101st Annual Meeting 2005-01-01 Simpson, R.W., Jachens, R.C., Graymer, R.W., Ponce, D.A.
Total Maximum Daily Load Program: California’s 2006 Clean Water Act Section 303(d) List of Water Quality Limited Segments 2006-01-01 State Water Resources Control Board
Irrigated Lands Regulatory Program 2016-09-21 State Water Resources Control Board
Santa Clara Valley Water Conservation Project, Report to the Santa Clara Valley Water Conservation Committee Santa Clara Valley Water District 1970-01-01 Tibbets, F.H. and Kiefer S.E.
Revised Final Groundwater Vulnerability Study 2010-01-01 Todd Engineers and Kennedy/Jenks Consultants for Santa Clara Valley Water District
Final Salt and Nutrient Management Plan: Llagas Subbasin 2014-01-01 Todd Groundwater for Santa Clara Valley Water District
DRASTIC: A Standardized System for Evaluating Ground Water Pollution Potential Using Hydrogeologic Settings 1987-01-01 USEPA

Monitoring Network Module

SGMA Wells


General Sites