DWP Annual Operations Plans

The Inyo County/Los Angeles Water Agreement provides that each year the Los Angeles Department of Water and Power (LADWP) will develop an annual operations and pumping plan for the Owens Valley consistent with the goals of the Agreement. By April 20, LADWP must submit to the County a proposed plan for the twelve month period beginning April 1. The County has 10 days (April 30) to comment on DWP’s proposal. LADWP must meet with the County’s Technical Group representatives within 10 (May 10) days of the receipt of the County’s comments to try to resolve the County’s concerns. LADWP then has 10 days after meeting with the County to revise its operations and pumping plan and then implement the plan.

An important component of the DWP Operation Plan is the Pumping Program.

In 1990, the County and LADWP adopted a Drought Recovery Policy that requires the Inyo/Los Angeles Standing Committee’s approval of LADWP’s annual operations and pumping plans before LADWP implements the plan.

LADWP 2017 Draft Annual Owens Valley Report

2017 Draft Annual Owens Valley  Report 

Inyo County Comments on LADWP’s proposed Annual Operations Plan for Runoff Year 2017-2018

LADWP 2016 Draft Annual Owens Valley Report

2016 Operations Plan for the Second Six Months

2016 Operations Plan for the First Six Months (Draft)

2016 Final Annual Owens Valley Report

2016 Draft Annual Owens Valley Report

Inyo County Comments on LADWP’s proposed Annual Operations Plan for Runoff Year 2016-2017

LADWP 2015 Draft Annual Owens Valley Report

LADWP 2015 Operations Plan for the Second Six Months (Final)

LADWP 2015 Operations Plan for the Second Six Months (Draft)

LADWP 2015 Operations Plan for First Six Months (Draft)

LADWP 2015 Draft Annual Owens Valley Report

Note:  The Annual Operations Plan is Section 2 of the Report

Inyo County Comments on LADWP’s proposed Annual Operations Plan for Runoff Year 2015-2016 (April 2015)

Inyo Comments on LADWP’s proposed Annual Operations Plan for Runoff Year 2015-16 for the second six months (Oct 2015)

LADWP 2014 Draft Annual Owens Valley Report

LADWP 2014 Operations Plan for the Second Six Months (Draft)

LADWP 2014 Operations Plan for the Second Six Months (Final)

LADWP 2014 Draft Annual Owens Valley Report
Note:  The Annual Operations Plan is Section 2 of the Report

Inyo County Comments on LADWP’s proposed Annual Operations Plan for Runoff Year 2014-2015 (April 2014)

Inyo County Comments on LADWP’s proposed Annual Operations Plan for Runoff Year 2014-15 for the Second Six Months (Oct 2014)


LADWP Operations Plan 2013

View the plan (draft)

LADWP 2013  Operations Plan for the Second Six Months


LADWP 2013 Annual Owens Valley Report

LADWP 2013 Annual Owens Valley Report
Note:  The Annual Operations Plan is Section 2 of the Report


LADWP 2012 Annual Owens Valley Report

LADWP Annual Owens Valley Report May 2012
Note:  The Annual Operations Plan is Section 2 of the Report


LADWP 2011 Annual Owens Valley Report

LADWP Annual Owens Valley Report May 2011
Note:  The Annual Operations Plan is Section 2 of the Report


LADWP 2010 Annual Owens Valley Report

LADWP Annual Owens Valley Report May 2010
Note:  The Annual Operations Plan is Section 2 of the Report


DWP 2009-2010 Annual Operations Plan – May 2009

Owens Valley Annual Operations Plan Summary

For the period of April 1, 2009 to March 31, 2010 the forecast Owens Valley runoff is 294,100 acre-feet, or 71% of normal. According to the well ON/OFF provisions of the Water Agreement, approximately 135,000 acre-feet of water is available for groundwater pumping from Owens Valley wellfields. Currently, LADWP pumping is governed by the ON/OFF provisions of the 1991 Agreement between the County of Inyo and the City of Los Angeles (City) and its Department of Water and Power on a Long-Term Groundwater Management Plan for Owens Valley and Inyo County (Water Agreement) and the Agreement Between the County of Inyo and the City of Los Angeles Department of Water and Power Regarding and Interim Management Plan for Groundwater Pumping in the Owens Valley (IMP) agreed upon by Inyo County and LADWP. Accordingly, LADWP’s planned pumping is limited to 63,450 acre-feet (acft) for 2009-10 runoff year.

LADWP Annual Owens Valley Report May 2009 
Note:  The Annual Operations Plan is Section 2 of the Report
ICWD Comments on DWP’s draft Operations Plan April 29, 2009


DWP 2008-2009 Annual Operations Plan – May 2008

For the period of April 1, 2008 to March 31, 2009 the forecast Owens Valley runoff is 356,100 acre-feet, or 86% of normal. According to the well ON/OFF provisions of the Water Agreement, approximately 144,000 acre-feet of water is available for groundwater pumping from Owens Valley wellfields. Currently, LADWP pumping is governed by the ON/OFF provisions of the Water Agreement and the Interim Management Plan (IMP) agreed upon by Inyo County and
LADWP. Accordingly, LADWP’s planned pumping is limited to 66,800 acre-feet for 2008-09 runoff year.

LADWP Annual Owens Valley Report May 2008 
Note:  The Annual Operations Plan is Section 2 of the Report

Draft – April 2008

ICWD received the DRAFT DWP Operations Plan on April 18, 2008. No digital copy was provided. The proposed plan presents total pumping of 66,800 acre-feet in the Owens Valley for the 2008-2009 runoff-year. ICWD reviewed the draft plan and commented on April 28th with the following letter to DWP.


DWP 2007-2008 Annual Operations Plan

LADWP Annual Owens Valley Report May 2007 
Note:  The Annual Operations Plan is Section 2 of the Report


DWP 2006-2007 Annual Operations Plans

LADWP Annual Owens Valley Report May 2006 
Note:  The Annual Operations Plan is Section 2 of the Report


DWP 2005-2006 Annual Operations Plan, May 2005

LADWP Annual Owens Valley Report May 2005 
Note:  The Annual Operations Plan is Section 2 of the Report

2005-2006 Operations Plan, Revised September 28, 2005

Groundwater Pumping – Runoff Year 2005-2006

On September 28, 2005, LADWP released Revised Proposed Operational Plan for 2005-06 Runoff Year.  The revision was a result of the Inyo County Superior Court’s August 9, 2005 Order.  Accordingly, planned groundwater pumping for the duration of the Runoff Year (through Mar 2006) were revised and limited to a maximum or 57,412 Acre-feet.

Table 1.  Comparison of 2005-06 initially planned, revised planned, and actual pumping by wellfield.  Values in acre-feet.  The “Init” column shows initial proposed pumping from LADWP’s May 20, 2005 Operations Plan, Section 2.  The “Rev” column shows revised proposed pumping from LADWP’s September 28, 2005 Revised Proposed Operational Plan.  “Act” column shows actual pumping, entered in mid-way through the following month.

Table comparing revised planned pumping with original and actual pumping

Table comparing revised planned pumping with original and actual pumping


DWP 2004-2005 Annual Operations Plan

Inyo County Water Department Comments Concerning LADWP’s Proposed Plan


DWP 2003-2004 Annual Operations Plan


DWP 2002-2003 Annual Operations Plan


DWP 2001-2002 Annual Operations Plan