streamfl ow gains and losses along san francisquito creek and ... · pdf file ow gains and...

Click here to load reader

Post on 01-Jun-2020

1 views

Category:

Documents

0 download

Embed Size (px)

TRANSCRIPT

  • U.S. GEOLOGICAL SURVEY

    W

    ater

    -Resources Investigations Report

    Streamfl

    ow 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, 1996–97

    Prepared in cooperation with the

    CITY OF MENLO P

    ARK

    02-4078

    By

    Loren F. Metzger

    Sacramento, California

    2002

    30 15

    -1 9

    http://www.ci.menlo-park.ca.us/

  • U.S. DEP

    ARTMENT OF THE INTERIOR

    GALE A. NORTON, Secretary

    U.S. GEOLOGICAL SURVEY

    Charles G. Groat, Director

    For additional information write to:

    Copies of this report can be purchased from:

    U.S. Geological Survey

    Information Services

    Box 25286

    Federal Center

    Denver, CO 80225

    The use of firm, trade, and brand names in this report is for identification purposes only and

    does not constitute endorsement by the U.S. Geological Survey.

    District Chief

    U.S. Geological Survey Placer Hall, Suite 2012 6000 J Street Sacramento, CA 95819-6129

  • CONTENTS

    Abstract.................................................................................................................................................................................. 1 Introduction ........................................................................................................................................................................... 2

    Previous Studies........................................................................................................................................................... 4 Acknowledgments ....................................................................................................................................................... 4

    Physical Setting ..................................................................................................................................................................... 5 Surface-Water Hydrology............................................................................................................................................ 5 Ground-Water Hydrology............................................................................................................................................ 5

    Measured Streamflow Gains and Losses ............................................................................................................................... 11 Methods of Data Collection and Analysis ................................................................................................................... 12 Streamflow Measurements and Estimated Gains and Losses...................................................................................... 14 Estimated Ground-Water Recharge from San Francisquito Creek.............................................................................. 22

    Characterization of Surface-Water and Ground-Water Quality............................................................................................. 25 Methods of Water Sampling and Analysis................................................................................................................... 25 Major Ions.................................................................................................................................................................... 29

    Surface Water..................................................................................................................................................... 29 Ground Water..................................................................................................................................................... 31

    Oxygen-18 and Deuterium .......................................................................................................................................... 34 Summary and Conclusions .................................................................................................................................................... 38 References Cited.................................................................................................................................................................... 40 Appendix A. Field measurements and laboratory analyses of samples from ground-water wells, streamflow-

    measurement stations, Lake Laguinta, and public supply, southern San Mateo and northern Santa Clara Counties, California, 1996–97 ................................................................................................................................ 42

    FIGURES

    1. Map showing location of study area......................................................................................................................... 3 2. Map showing locations of streamflow-measurement stations and storm drains along San Francisquito

    Creek, southern San Mateo and northern Santa Clara Counties, California ............................................................ 6 3. Graph showing mean annual, annual mean, and monthly mean streamflow at U.S. Geological Survey

    (USGS) stream gage11164500 (site 3) on San Francisquito Creek at Stanford University, southern San Mateo and northern Santa Clara Counties, water years 1932–41 and 1951–99 ................................................................. 7

    4. Map showing locations of faults and geohydrologic sections along and perpendicular to San Francisquito Creek, southern San Mateo and northern Santa Clara Counties, California ............................................................ 8

    5. Generalized geohydrologic sections along and perpendicular to San Francisquito Creek, southern San Mateo and northern Santa Clara Counties, California......................................................................................................... 9

    6–9. Graphs showing: 6. Daily mean streamflow at U.S. Geological Survey (USGS) stream gage 11164500 (site 3) on San

    Francisquito Creek at Stanford University, southern San Mateo and northern Santa Clara Counties, April 1, 1996, to May 31, 1997 ........................................................................................................................ 13

    7. Streamflow measurements for the five seepage runs along San Francisquito Creek, southern San Mateo and northern Santa Clara Counties, California ................................................................................................. 20

    8. Average streamflow gains or losses by reach between sites 3 and 12 along San Francisquito Creek, southern San Mateo and northern Santa Clara Counties, California ............................................................... 21

    9. Streamflow frequency for U.S. Geological Survey (USGS) stream gage 11164500 (site 3) on San Francisquito Creek, southern San Mateo and northern Santa Clara Counties, California, water years 1932–41 and 1951–99 ...................................................................................................................................... 24

    Contents 3

  • 10. Map showing locations of ground-water, surface-water, and miscellaneous water-chemistry sampling sites, southern San Mateo and northern Santa Clara Counties, California ....................................................................... 27

    11. Trilinear diagram showing chemical composition of water from selected ground-water wells, streamflow- measurement stations, Lake Lagunita, and public supply, southern San Mateo and northern Santa Clara Counties, California, April 28 through May 2, 1997 ............................................................................................... 30

    12. Graphs showing selected trace-element ratios as a function of chloride concentration in water from wells, southern San Mateo and northern Santa Clara Counties, California, April 28 through May 2, 1997 ..................... 33

    13. Graph showing relation between delta deuterium and delta oxygen-18 for (A) all water samples, (B) San Francisquito Creek and Arroyo Ojo de Agua Creek samples, and (C) ground-water samples from wells along or near San Francisquito Creek, southern San Mateo and northern Santa Clara Counties, California, April 1996 through May 1997 ................................................................................................................................. 35

    14. Map showing delta oxygen-18 and delta deuterium for ground-water samples from wells along or near San Francisquito Creek, southern San Mateo and northern Santa Clara Counties, California, April and May 1997 ................................................................................................................................................................ 37

    TABLES

    1–5. Tables showing streamflow measurements and gain or loss of streamflow between stations, flow distance between stations, and rate of gain or loss of streamflow between stations along San Francisquito and Los Trancos Creeks, southern San Mateo and northern Santa Clara Counties, California:

    1. April 29, 1996 ................................................................................................................................................. 15 2. June 13, 1996 .................................................................................................................................................. 16 3. July 22, 1996 .........................................

View more