Landowners – concerned about potential seepage related to Restoration Flows?
Call the Seepage Hotline: 916-978-4398 or
Click on RestorationFlows@restoresjr.net and send us the following information:
Your name, phone number, and the best time to contact you
Description of the potential seepage location(s)
Visit the Groundwater Monitoring Page to see recent groundwater level measurements.
Reclamation’s Seepage Management Plan has two goals:
To limit or reduce Restoration Flows to the extent necessary to avoid material adverse groundwater seepage impacts, which are waterlogging or root zone salinity impacts to agricultural crops. We do this through over 200 groundwater monitoring wells, setting of groundwater level thresholds in these wells (see Appendix H of the Seepage Management Plan), and limiting Restoration Flows to avoid increasing groundwater levels over these thresholds (see Appendix J of the SMP).
Construct seepage projects, which may include physical or non-physical projects, that allow higher flows in the San Joaquin River and bypasses without causing groundwater seepage impacts. Seepage projects may include seepage easements, land acquisition from willing sellers (see FAQ sheet below), interceptor lines, drainage ditches, slurry walls, etc. The map below shows seepage project priorities by the flow level that might impact the identified parcels.
Seepage Management Plan – September 2014 (Appendices E, H and J updated March-June 2017)
Seepage Management Documents
Name Category Year Kind Size Tags
Almond Root Zone Study Plan: Phase 1 Report – June 2015 Seepage 2015 pdf 1.0 MiB Almond Root Zone Study Plan: Phase 2 Report – February 2016 Seepage 2016 pdf 0.9 MiB Almond Root Zone Study Plan: Response to Public Comments on Phase 1 Report – February 2016 Seepage 2016 pdf 0.7 MiB Almond Root Zone Study Plan: Updated Phase 2 Report – October 2016 Seepage 2016 pdf 0.9 MiB Anecdotal Seepage Maps Seepage pdf 61.4 MiB Appendix M. References Cited
ASTM Standard D 2487-06 E01, 2006, "Standard Practice for Classification of Soils for Seepage pdf 0.2 MiB Attachment 1 to Appendix C Seepage 2014 pdf 0 B Book of Seepage Parcel Groups Seepage pdf 6.7 MiB Groundwater Terrain Cross-Sections Seepage pdf 17.9 MiB Inundation Seepage pdf 130 MiB Letter from the Central Valley Regional Water Quality Control Board regarding interceptor line discharge permits Seepage pdf 1.3 MiB Memo: 2014 Threshold Comments – January 2014 Seepage pdf 34 KiB Memo: 2017 Threshold Comments Seepage pdf 0.8 MiB Memo: Monitoring Wells Installed in 2012 Seepage pdf 0.3 MiB Memo: Proposed Monitoring Wells for 2014 Seepage pdf 1.0 MiB PGMap1937Aerials Seepage pdf 103 MiB PGs by Flow Priority 20161101 Seepage pdf 2.0 MiB PGs By Flow Priority 20181210 Seepage 2018 pdf 0 B Realty Appraisal Seepage FAQ Seepage 2016 docx 0.6 MiB seepage , FAQ Realty Appraisal Seepage FAQ Seepage docx 0.6 MiB Realty Appraisal Seepage FAQ 2020 Seepage pdf 0 B Seepage Management Plan: Appendix A: Seepage Effects of Concern Seepage 2014 pdf 0.2 MiB Seepage Management Plan: Appendix B: Historic Groundwater Levels and Surface Water Flow Seepage 2014 pdf 3.5 MiB Seepage Management Plan: Appendix C: Areas Potentially Vulnerable to Seepage Effects Seepage 2014 pdf 7.6 MiB Seepage Management Plan: Appendix D: Sediment Texture and Other Data (updated May 2015) Seepage 2014 pdf 2.6 MiB Seepage Management Plan: Appendix E: Monitoring Network (updated March 2017) Seepage 2014 pdf 0.6 MiB Seepage Management Plan: Appendix F: Aerial Imagery, Remote Sensing Data Seepage 2014 pdf 5.9 MiB Seepage Management Plan: Appendix G: Soil Salinity Thresholds Seepage 2014 pdf 0.1 MiB Seepage Management Plan: Appendix H: Groundwater Level Thresholds (updated June 2017) Seepage 2014 pdf 3.3 MiB Seepage Management Plan: Appendix H: Groundwater Level Thresholds (updated March 2024) Seepage 2024 pdf 0 B Seepage Management Plan: Appendix I: Groundwater Seepage 2014 pdf 1.5 MiB Seepage Management Plan: Appendix J: Operations (updated March 2017) Seepage 2014 pdf 2.2 MiB Seepage Management Plan: Appendix K: Landowner Claims Process Seepage 2014 pdf 0.2 MiB Seepage Management Plan: Appendix L: Seepage Project Handbook Seepage 2014 pdf 4.8 MiB Seepage Management Plan: Appendix L: Seepage Project Handbook - Attachment A – Methodology Seepage 2014 pdf 67 KiB Seepage Management Plan: Appendix L: Seepage Project Handbook - Attachment B – Reclamation Final Design Process, April 2008 Seepage 2014 pdf 0.1 MiB Seepage Management Plan: Appendix L: Seepage Project Handbook - Attachment C – Reclamation Design Data Collection Guidelines for Drains, Chapter 3, Section 8, September 2007 Seepage 2014 pdf 18 KiB Seepage Management Plan: Appendix L: Seepage Project Handbook - Attachment D – Slurry Wall Cost Estimates, 2011 Seepage 2014 pdf 0.2 MiB Seepage Management Plan: Attachment 1 to Appendix D Seepage 2014 pdf 5.2 MiB Seepage Management Plan: Main Body of SMP Seepage 2014 pdf 0.7 MiB Seepage Management Plan: Summary of Appendix H Updates Seepage 2014 pdf 0.4 MiB Seepage Parcel Group 1 Inundation at 4500 cfs Seepage pdf 130 MiB SMP Peer Review: Comments and Responses – April 5, 2013 Seepage 2013 pdf 85 KiB SMP Peer Review: Peer Review Report – December 10, 2012 Seepage 2012 pdf 1.3 MiB Water Surface Elevation and Terrain Profiles Seepage pdf 9.0 MiB
