Meeting Member Agency Demands 1 6/4/2019 Adheres to the - PDF document

6/4/2019 Item No. 3 MWDOC Joint Board Workshop June 5, 2019 2018 : Balanced Supplies 2019 : Prepared for a Range and Demands of Future Conditions Maintained high end‐of‐year SWP Water Demands Allocation Balance storage reserves (~2.5 MAF) 15% High ‐700 TAF Break Even: ~40% SWP Allocation 40% Normal Balanced Adaptive Operations Supplies Demands SPW SPW CRW Meeting Member Agency Demands 1

6/4/2019 Adheres to the Administrative Code Provides a framework for strategic operations and continued reliability Communicates expected future operations to member agencies and partners January 3, 2018 April 2, 2018 2

6/4/2019 Early 2018: High Deliveries of SWP Supplies (~75% Blends) April‐May 2018: Minimized Deliveries of SWP Supplies (~0% Blends) 3

6/4/2019 June‐December 2018: Moderate Deliveries of SWP Supplies (~25‐35% Blends) 5 Emergency Storage Dry‐Year Storage 4 Million Acre‐Feet 3 2 2.4 2.7 2.3 2.5 2.5 1.1 1.1 1.4 1.5 1.4 1.8 2.2 1.8 1.7 1.2 0.9 1.3 1.1 1.0 1 0 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 4

6/4/2019 Operating Principles Meet member agency demands Meet water quality requirements Manage storage according to WSDM principles Manage maintenance and shutdowns Meet blending objectives Maximize hydroelectric power production 5

6/4/2019 3.0 Colorado River Supplies State Water Project Supplies Conditions Under Normal Hydrology 2.5 High Demands 2.0 Million Acre‐Feet Normal Demands 1.5 Low Demands 1.0 Current Trend Conditions 0.5 0.0 10% 20% 30% 40% 50% 60% 70% 80% State Water Project Allocation *Does not include transfers or other WSDM actions; agricultural adjustments also not included Provide guidelines to prioritize the use of storage in shortage conditions and the replenishment of storage in surplus conditions 6

6/4/2019 WSDM Plan – Surplus Action Priorities Priority Surplus Action (Fill) 1 DVL Surface 2 Flex Storage In‐Region May Vary 3 Conjunctive Use / Cyclic Storage Groundwater 4 SWP Carryover Surface 5 Lake Mead ICS Out‐of‐Region 6 Banking Programs Groundwater Priority is not meant to be a strict order Store water for most effective use in future droughts Priority can be adapted to current conditions WSDM Plan – Drought Action Priorities Priority Drought Action (Withdraw) 1 DVL 2 Banking Programs Groundwater May Vary 3 Lake Mead ICS Out‐of‐Region Surface 4 SWP Carryover 5 Conjunctive Use / Cyclic Storage Groundwater In‐Region 6 Flex Storage Surface Priority is not meant to be a strict order Take water strategically to be better prepared for future droughts Priority can be adapted to current conditions 7

6/4/2019 Surplus Conditions 1,000 900 DVL Fill the remaining capacity in DVL 800 Lake Mead ICS Additional put in Lake Mead ICS Storage Fill (Thousand Acre‐Feet) 700 CUP/Cyclic Fill according to max put capacity 600 500 Banking General Guideline General Guideline Fill according to the max put capacity Programs 400 300 200 Lake Mead ICS Initial put in Lake Mead ICS 100 0 Shortage Conditions 0 Create space in reservoir for additional DVL operational flexibility General Guideline General Guideline Banking ‐200 Max take capacity Storage Fill (Thousand Acre‐Feet) SWP Carryover Initial amount Available take capacity CUP ‐400 Amount needed to meet demands in areas SWP Carryover that can only receive water from SWP ‐600 DVL Down to one‐third of dry‐year capacity ‐800 Lake Mead ICS Go to 8‐pump flow on CRA & drought actions ‐1,000 Remaining amount above emergency DVL storage ‐1,200 Preserve for last, meeting remaining system Flex Storage demands ‐1,400 8

6/4/2019 2019 WSDM Strategy Implementation 1,500 1,500 1,500 Thousand Acre‐Feet Thousand Acre‐Feet Thousand Acre‐Feet Additional Conditions Under 1,000 1,000 1,000 Actions 15% SWP Allocation DVL Storage Fill Storage Fill Storage Fill Storage Fill Lake Mead ICS CUP/Cyclic 500 500 500 Banking Programs Lake Mead ICS 0 0 0 DVL Storage Withdraw Storage Withdraw Storage Withdraw Banking Programs SWP Carryover CUP SWP Carryover ‐500 ‐500 ‐500 DVL Lake Mead ICS ‐1,000 ‐1,000 ‐1,000 0% 0% 0% 5% 5% 5% 10% 10% 10% 15% 15% 15% 20% 20% 20% 25% 25% 25% 30% 30% 30% 35% 35% 35% 40% 40% 40% 45% 45% 45% 50% 50% 50% 55% 55% 55% 60% 60% 60% 65% 65% 65% 70% 70% 70% 75% 75% 75% 80% 80% 80% 85% 85% 85% 90% 90% 90% 95% 95% 95% 100% 100% 100% State Water Project Allocation State Water Project Allocation State Water Project Allocation Managing the System 9

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6/4/2019 Providing options after a significant emergency Emergency deliveries of agency water in Metropolitan’s system should be considered in a proactive and measured way, rather than ad‐hoc after a significant natural disaster or emergency Addressing seismic vulnerabilities and system resiliency Infrastructure Reliability Rehabilitation of prestressed concrete cylinder pipe Seismic upgrades of treatment plants and conveyance systems Emergency Response In‐house manufacturing and construction capability Emergency communications Mutual assistance agreements with partners 11

6/4/2019 Utilize flexibility in Metropolitan’s system to deliver water from multiple supply sources, feeders and/or reservoirs Utilize interconnections or operating agreements with other agencies Agencies may benefit from a proactive approach for utilizing Metropolitan’s system during emergencies Approach would only be used if there is no other way to deliver water to a portion of the agency service area Approach would not substitute for local agencies to take steps to improve emergency preparedness 12

6/4/2019 An area within Metropolitan’s system is out of service for a prolonged period after an earthquake There are no other delivery options for part of the impacted area Metropolitan’s system could be used to supply a portion of the local system that has no other delivery options, subject to specific conditions , until repairs are complete Agency A Normal Operations MWD Water Treatment Plant Agency A Water Supply Agency A = Service Connection 13

6/4/2019 Agency A fed with water thru MWD system Agency A Emergency Operations MWD Water Damage Treatment Zone Plant Agency A Water Supply Agency A = Service Connection Normal Operations MWD Water Treatment Plant Agency B Agency A Agency A = Service Connection Water Supply Agency A 14

6/4/2019 Emergency Operations Agencies A and B fed with Agency Agencies A and B fed with Agency A’s water thru MWD system A’s water thru MWD system MWD Water Treatment Plant Agency B Agency A Damage Zone Agency A = Service Connection Water Supply Agency A Provide member agencies with the option of using Metropolitan’s system for agency water deliveries in an emergency, under specific conditions Board and member agency feedback is essential for policy development “Emergency” definition Metropolitan is physically unable to make deliveries to a member agency service connection for a specified period after an emergency, as determined by Metropolitan’s General Manager 15

6/4/2019 Use of Metropolitan’s system for emergency deliveries Ability to serve Water quality standards and liability Indemnification System integrity Compensation Operational requirements Term for emergency deliveries 16

6/4/2019 Emergency water deliveries in Metropolitan’s system should be considered in a proactive and measured way before a major emergency Emergency deliveries must not displace other agency efforts to prepare for emergencies Amendments to Metropolitan’s Administrative Code would be required 17