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

Appendix A

Appendix B

Appendix C

Appendix D

Appendix E

Appendix F


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.*

Technical Group June 11, 2009 Recommendation for Permanent Monitoring Stations for the Lower Owens River Project*

The Final 2009 - 2010 Fiscal Year Lower Owens River Project Work Plan and Budget was approved by the Technical Group at its March 30, 2009 meeting.*

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 Street, Bishop, California.*

* 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

Outside Cover

Inside Cover

Table of Contents

Executive Summary

Section 1 – Introduction

Section 2 – Proposed Project

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 11 – Alternatives

Section 12 – Cumulative Impacts

Section 13 – Consistency with Inyo County General Plan

Section 14 – Other Federal Impact Considerations

Sections 15 - 18 – List of Agencies and Persons Contacted, List of Prepares, Acronyms and Abbreviations, and References

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 2-16B – Walk Through

Figure 2-16C – Walk Over

Figure 2-16D – Fence Wings

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 2-19 – Blackrock Lease

Figure 2-20 – Thibaut Lease

Figure 2-21 – Island Lease

Figure 2-22 – Lone Pine Lease

Figure 2-23 – Delta 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 C –
Draft Policies to be Considered for Adoption by the County of Inyo and City of Los Angeles Department of Water and Power Concerning Operation and Funding of the Lower Owens River Project

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

Comment Letter 6

Comment Letters 7-10

Comment Letters 11-15

Comment Letter 16

Comment Letters 17-25

Comment Letters 26-30

Comment Letters 31-40

Comment Letters 41-50

Comment Letters 51-60

Comment Letters 70-90

Comment Letters 91-100

Comment Letters 101 - 110

Comment Letters 111-120

Comment Letters 121-130

Comment Letters 131-150

Comment Letters 151-160

Comment Letters 161-170

Comment Letters 171-190

Comment Letters 191-210

Comment Letters 211-223

Comment Letters 224-234

Comment Letters 235-241

Comment Letter 242, part 1

Comment Letter 242, part 2

Comment Letter 242, part 3

Comment Letters 243-259

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)

Lower Owens River Project Contacts (60 KB)