This page contains Lower Owens River Project (LORP) technical documentation and newsletters.
2023 Final Annual Report
Lower Owens River 2023 Final Annual Report
2022 Final Annual Report
Lower Owens River Project 2022 Final Annual Report
2021 Final Annual Report
Lower Owens River Project 2021 Final Annual Report
2020 Final Annual Report
Lower Owens River Project 2020 Final Annual Report
2019 Final Annual Report
Lower Owens River Project 2019 Final Annual Report
2018 Final Annual Report
Mazourka Measuring Station Initial Environmental Study/Negative Declaration
Section 3.0 Appendix A LORP Vegetation Mapping 2017
Section 3.0 Appendix B LORP Vegetation Mapping 2000-2017
Section 3.0 Appendix C DHA Vegetation Mapping 2017
Section 3.0 Appendix D DHA Vegetation Mapping 2000-2017
2017 Final Annual Report
Lower Owens River Project 2017 Final Annual Report
2016 Final Annual Report
Lower Owens River Project 2016 Final Annual Report
2015 Final Annual Report
Lower Owens River Project 2015 Final Annual Report
2014 Final Annual Report
Lower Owens River Project 2014 Final Annual Report
2013 Final Annual Report
Lower Owens River Project 2013 Final Annual Report
2012 Final Annual Report
Lower Owens River Project 2012 Final Annual Report
Section 9 Flow Modeling Appendix A
Section 9 Flow Modeling Appendix B
Section 9 Flow Modeling Appendix C Plot 1
Section 9 Flow Modeling Appendix C Plot 2
Section 9 Flow Modeling Appendix C Plot 3
Section 9 Flow Modeling Appendix C Plot 4
Section 9 Flow Modeling Appendix C Plot 5
2011 Final Annual Report
Lower Owens River Project 2011 Final Annual Report
2011-2012 Work Plan
Lower Owens River Project 2011-2012 Work Plan
Mazourka Measuring Station Initial Environmental Study/Negative Declaration
Mazourka Measuring Station Initial Environmental Study/Negative Declaration
Technical Group Actions on the Lower Owens River Project
2010 – 2011 Fiscal Year Lower Owens River Project Workplan and Budget*
The Inyo/Los Angeles Technical Group adopted the 2010-2011 Fiscal Year Lower Owens River Project Workplan and Budget at its meeting of February 8, 2010.*
* This website posting is in conformance with Los Angeles Department of Water and Power requirements under 2007 Stipulation and Order, Case No S1CVCV01-29768.
2010 Final Annual Report
A copy of the Lower Owens River Project 2010 Final Annual Report is available for download by selecting the link below.
(NOTE: Some files are large and may take some time to download.)
Lower Owens River Project 2010 Final Annual Report (77 MB)
Section 2. Hydrologic Appendices (241 KB)
Section 3. Seasonal Habitat Flow Appendices:
Seasonal Habitat Appendix 1 and 2 (75 KB)
Seasonal Habitat Appendix 3 (419 KB)
Seasonal Habitat Appendix 5 (92 KB)
Seasonal Habitat Appendix 6 (380 KB)
Seasonal Habitat Appendix 7 (382 KB)
Seasonal Habitat Appendix 8 (455 KB)
Seasonal Habitat Appendix 9 (178 KB)
Section 4. Land Management Appendices (139 MB)
Section 6. Vegetation Mapping Appendices (123 KB)
Blackrock Waterfowl Management Area Shapefiles (5.5 MB)
Riverine Vegetation Mapping Shapefiles (12.6 MB)
Section 7. Site Scale Appendices (5.9 MB)
Section 9. Fish Creel Appendices (2 MB)
2009 Final Annual Monitoring Report
A copy of the Lower Owens River Project 2009 Final Annual Monitoring Report is available for download by selecting the link below:
Lower Owens River Project 2009 Final Annual Monitoring Report (48.8 MB)
(NOTE: This file is large and may take some time to download.)
2008 Annual Monitoring Final Report
A copy of the Lower Owens River Project 2008 Final Annual Monitoring Report is available for download by selecting the link below:
Lower Owens River Project 2008 Final Annual Monitoring Report (22.6 MB)
(NOTE: This file is large and may take some time to download.)
LORP UPDATES
The Technical Group accepted the Final Lower Owens River Project 2008 Annual Report at the March 19, 2009 Technical Group Meeting held at 300 Mandich St., Bishop, California.*
* This website posting is in conformance with LADWP requirements under 2007 Stipulation and Order, Case No S1CVC01-29768.
LORP Supplemental Environmental Impact Report, May 2006
Lower Owens River Project3Lower Owens River Project Final Supplemental Environmental Impact Report, May 2006
A copy of the Final Supplemental EIR is available for download by selecting the link below.
LORP Supplemental Environmental Impact Report, May 2006 (35 MB)
(NOTE: The file is large and may take some time to download.)
Final EIR
Final EIR/EIS Table of Contents
A copy of the final LORP EIR is available for download by selecting the links below:
(NOTE: Some files are large and may take some time to download.)
Volume 1
Section 3 – Overview of Impact Assessment
Section 4 – Riverine-Riparian System
Section 5 – Diversion, Pump Station, Power Line, and Road Surfacing
Section 6 – Delta Habitat Area
Section 7 – Blackrock Waterfowl Habitat Area
Section 8 – Off River Lakes and Ponds
Section 9 – Land Management Plan
Section 10 – Impacts Associated with the LORP as a Whole
Section 12 – Cumulative Impacts
Section 13 – Consistency with Inyo County General Plan
Section 14 – Other Federal Impact Considerations
Appendix A – Figures
Figure 1-1 – Lower Owens River Project Area
Figure 2-1a-e – Riverine-Riparian System Features
Figure 2-2 – River Channel to be Cleared
Figure 2-3 – Locations of Beaver Dams Removed in 2002
Figure 2-4 – Location of Pump Station and Delta Habitat Area from the MOU
Figure 2-5 – Owens River Delta Habitat Area
Figure 2-6 – Land Ownership in and Near the Delta Habitat Area
Figure 2-7 – Overview of the Diversion and Pump Station
Figure 2-7A – Owens Lake Dust Control Project Facilities
Figure 2-8 – Views of the Diversion, Spillway, and By-pass
Figure 2-9 – Service Roads at the Pump Station
Figure 2-10 – Proposed Power Line
Figure 2-11 – Plan View of the Pump Station
Figure 2-12 – Plan View of the Pump Sump
Figure 2-13 – Side View of the Pump Station
Figure 2-14 – Limits of Inundation above the Pump Station
Figure 2-15 – Management Units in the Blackrock Waterfowl Habitat Area
Figure 2-16 – Leases in the LORP Project Area
Figure 2-16A – Location of Seeps and Springs
Figure 2-16E – Channel Fence Section
Figure 2-16F – Cattle Guard and Gate
Figure 2-17 – Elk Fence Crossings to be Used on LADWP Leases in the LORP Project Area
Figure 2-18 – Twin Lakes Lease
Figure 2-24 – Roads within the Project Area
Figure 5-1 – Vegetation at the Pump Station Site
Figure 5-2 – Limits of Disturbance at the Pump Station Site
Figure 6-1 – Delta Habitat Area
Figure 6-2 – Land Types in the Delta Habitat Area
Figure 6-3 – Wetlands Identified by Jones & Stokes (1996)
Figure 6-4 – Wetlands Mapped by White Horse Associates – 1999 Conditions
Figure 6-5 – Delta Habitat Conditions - 1944
Figure 6-6 – Delta Habitat Conditions - 1967
Figure 6-7 – Delta Habitat Conditions - 1981
Figure 6-8 – Delta Habitat Conditions - 1992
Figure 6-9 – Delta Habitat Conditions - 1993
Figure 6-10 – Delta Habitat Conditions - 1996
Figure 6-11 – Delta Habitat Conditions - 2000
Figure 7-1 – Existing Vegetation in the Areas to be Flooded – Drew and Winterton Units
Figure 7-2 – Existing Vegetation in the Areas to be Flooded – Waggoner Unit
Figure 7-3 – Existing Vegetation in the Areas to be Flooded – Thibaut Unit
Figure 11-1 – Delta Habitat Area with Physical Modifications
Figure 11-2 – Alternative Sediment Stockpile Sites
Appendix B –
Letters of Comment on the Notice of Preparation
Appendix D –
Birds Species of the LORP Project Area
Appendix E –
Hydraulic Modeling Analysis of Delta Flow Alternatives – Ecosystem Sciences
Appendix F –
Background Information on Cultural Resources
Appendix G –
Utilization Method
Appendix H –
Scope of Work for the Implementation of Mitigation Measure PS-1
Appendix I –
Eastern Sierra Weed Management Area Strategic Plan
Volume 2
Appendix J – Agency and Public Comments on the Draft EIR/EIS
Written comment letters and transcripts of oral comments on the Draft EIR for the Lower Owens River Project are presented in this section.
(NOTE: The files may take some time to download.)
Appendix Cover, List of Comment Letters, and Comment Letters 1-5
Lone Pine Meeting (December 4, 2002) Transcript
Bishop Meeting (December 5, 2002) Transcript, part 1
Bishop Meeting (December 5, 2002) Transcript, part 2
Volume 3
Appendix K –
Responses to Comments on the Draft EIR/EIS
Draft SEIR - Owens Lake Brine Pool Transition Area
A copy of the Draft Supplemental EIR is available for download by selecting the links below.
(NOTE: Some files are large and may take some time to download.)
Notice of Document Availability (787 KB)
Outside Cover (493 KB)
Inside Cover (51 KB)
Table of Contents (115 KB)
Section 1 – Summary (1.06 MB)
Section 2 – Introduction and Project Description (1 MB)
Section 3 – Environmental Analysis (1.77 MB)
Section 4 – Report Preparation, References and Glossary (158 KB)
Appendix A – Notice of Preparation and Comments Received (1.52 MB)
Appendix B – Bird Data for the Brine Pool Transition Area (275 KB)
Project Newsletter
Twin Lakes in the Owens Valley, part of the Lower Owens River Project
Learn about the LADWP’s Lower Owens River Project (LORP) via the Lower Owens River Project Newsletter. The LORP aims to restore the Lower Owens River. It has been called one of the most unique restoration projects in the United States. The newsletter also includes a map of the LORP.
Download the files available below to see the current issue of the LORP newsletter.
(NOTE: Some files are large and may take some time to download.)
Introduction to the Lower Owens River Project (134 KB)
Lower Owens River Project Goals (230 KB)
Lower Owens River Project Restoration Steps (354 KB)
Lower Owens River Project Map Page 1 (354 KB)
Lower Owens River Project Map Page 2 (354 KB)