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Upper Mokelumne River Watershed Authority

Upper Mokelumne River Watershed Authority. IRCUP Concept Workshop July 22, 2011. Introduction & Overview. Welcome Self Introductions Lunch Options Workshop Purpose & Objectives Workshop Agenda. Workshop Purpose and Objectiv es.

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Upper Mokelumne River Watershed Authority

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  1. Upper Mokelumne River Watershed Authority IRCUP Concept Workshop July 22, 2011

  2. Introduction & Overview • Welcome • Self Introductions • Lunch Options • Workshop Purpose & Objectives • Workshop Agenda

  3. Workshop Purpose and Objectives Purpose: Acquaint Board members and others with agency water supply needs and potential IRCUP benefits in advance of UMRWA IRCUP Collaborative Decision Making Plan process and possible Moke River Forum ‘Inter-regional’ Planning Grant Objectives are for Attendees to: • Learn basic water needs of Member Agencies • Be familiar with San Joaquin water resource issues • See potential benefits of IRCUP concept • Recognize environmental and other considerations • Know planned/anticipated IRCUP ‘next steps’

  4. Workshop Agenda • IRCUP Basic Concept • MAC Member water needs and issues • San Joaquin water needs and issues • How IRCUP May Help address needs • IRCUP scope and size options • Environmental and other considerations • Ongoing and Next Steps • Conclude Workshop (Board mtg @ 1:00)

  5. IRCUP Basic Concept • Mokelumne River stretches from High Sierra to Delta, links MAC Region with Eastern San Joaquin (ESJ) Region • ESJ’s depleted Groundwater Basin creates ‘conjunctive use’ opportunity (i.e. coordinated management of surface and ground water supplies via ‘water bank’) • Potential benefits: • MAC Region: Increased water supply and reliability • EBMUD: Supplemental supply - drought protection • ESJ Region: Groundwater basin recharge • IRCUP is ‘inter-regional’ by involving both MAC and ESJ Regions

  6. IRCUP Basic Concept Two ‘operations’ – wet years & dry years • Wet years • MAC members: surface water diversions • ESJ Region: ‘in-lieu’ of direct recharge • ‘Bank’ excess flows in SJ Groundwater Basin • Dry years • MAC members: surface water diversions and banked ‘exchange’ water • ESJ Region: extracts water stored in GW basin

  7. IRCUP Basic Concept

  8. Amador Water Needs & Issues

  9. AWA Water Needs & Issues

  10. AWA Water Needs & Issues

  11. AWA Water Needs & Issues

  12. AWA Water Needs & Issues Estimated Water Demands (April 2009)

  13. AWA Water Needs & Issues Total Water Use (AFY) Draft Updated Urban Water Management Plan

  14. AMADOR WATER AGENCY Water Supply Portfolio Planning • Conservation Projects • Adopted Conservation Plan • Review and implement other water savings infrastructure projects such as piping open channel conveyance systems & replacement of leaking storage facilities • Reclamation Projects • SNC Grant Funds to • initiate regional • wastewater & • reclamation • Developer Infrastructure • New Water Supply Projects • Investigation of the Inter- Regional Conjunctive Use Project (IRCUP) with partnerships & phased facilities • Investigate raising Lower Bear Reservoir either as stand alone project or part of IRCUP • Continue to look for potential projects involving Mokelumne & Cosumnes Rivers

  15. JVID Water Needs & Issues Annual demands 10,000 -12,000 AFA • Serves 90% ag and 10% domestic • Supplies bottled water to ~60 customers Supply sources: • Jackson Creek (storage at 22,000 af Lake Amador) • Mokelumne River (3,850 af now, 2,800 af soon) • Working w/EBMUD on Pardee tie-in Major system improvements in design • Replace 2 WTPs with 1 • New transmission lines

  16. Calaveras Water Needs & Issues

  17. CCWD Water Needs & Issues

  18. CCWD Water Needs & Issues

  19. CCWD Water Needs & Issues New Hogan/Camanche/Valley Springs Sub-RegionProjected Water Demands (AFA)

  20. CCWD Water Needs & Issues West Point/Wilseyville/Blue Mountain Area Projected Water Demands (AFA)

  21. CCWD Water Needs & Issues Combined Projected Water Demands (AFA) of Sub-regions Proximate to Mokelumne

  22. CCWD Water Needs & Issues

  23. CCWD Issues and Needs Calaveras Water Supply Objectives: Meet existing and future supply needs Secure Mokelumne River storage Mitigate existing groundwater overdraft Resolve protest of San Joaquin County’s water right filing Preserve reservation of Senior Priority of Area of Origin water rights

  24. CPUD Issues and Needs

  25. CPUD Issues and Needs CPUD Projected Future Demands

  26. CPUD Issues and Needs CPUD Water Supply Mokelumne River South Fork diversion Raw water pumped to Jeff Davis reservoir Agreement w/EBMUD provides approx. 9,125 AF per year Water Rights Order 16338 limits annual diversions to 6,656 AF

  27. EBMUD Water Needs & Issues

  28. EBMUD Water Needs and Issues Water Supply Management Program 2040 Current Status: - Revising PEIR to address Court Order Program Elements (adopted by EBMUD Board in 2009): - Rationing - Conservation - Recycling - Supplemental Supply Options: a) Water Transfers b) Groundwater Banking / Exchange (various locations) c) Desalination d) Reservoir Enlargement (various locations) The IRCUP can be considered a combination of items b&d and was framed in the WSMP 2040 as a Regional Up-Country Project option

  29. EBMUD Water Needs and Issues EBMUD Demand Projections: • Uses land-use based method to project demands • Consistent with anticipated levels of development in community planning policies

  30. EBMUD’s Demand Projections (2010 UWMP) Demand recovery trend from 2010 to 2020 based on previous trends

  31. Rationing Level: up to 15% (32 MGD) Conservation Level: D (39 MGD) Recycling Level: 3 (11 MGD) Enlarge Pardee Reservoir (up to 37.5 MGD) Court Ruling Identified Deficiencies with Environmental Review of Enlarge Pardee element + suggested consideration of an Enlarge Los Vaqueros option EBMUD Water Needs and Issues

  32. EBMUD’s Projected 2040 Water Supply * 11% Shortfall to be met by Supplemental Supply Option/s

  33. San Joaquin WaterNeeds & Issues

  34. 2005 Water Use 2030 Land Use

  35. San Joaquin Water Needs & Issues • 7 Major cities & towns • 9 Water districts & agencies • Large agricultural community • Rapid urban growth, increasing demands • Complex water management • Lack of adequate surface water supplies • Heavy reliance on groundwater

  36. Ground Water Elevations

  37. SJ Water Needs & Issues Groundwater Management Area – portion of San Joaquin County that overlies the Eastern San Joaquin County, Cosumnes, and Tracy Sub-Basins

  38. San Joaquin Water Needs & Issues Identified Water Management Strategies: • Reduce Water Demand (conservation/recycling) • Improve Operational Efficiency and Transfers (conveyance, reoperation, transfer) • Increase Water Supply (conjunctive use, desal, surface storage) • Improve Water Quality (water treatment, GW remediation) • Practice Resources Stewardship (ag land, economic incentives, ecosystem mgt, protect recharge areas) • Other Resource Management Strategies (Regional partnerships, imported water, land use planning, flood management)

  39. San Joaquin Water Needs & Issues Alternative Project Elements: Max. Demand Side Actions Maintain water levels at 1986-1992 levels 140-160 kaf/yr fluctuates around 1986 water level Utilize multiple sources & recharge areas Maximize in-lieu supply Program EIR: 4 equal alternatives to achieve 140-160 kaf/yr

  40. Conjunctive Use Projects

  41. Groundwater Basin No Project Alternative Continued decline Beneficial for: Groundwater levels Groundwater recharge Land Subsidence Wells Surface Water Reduce Salt Intrusion Alternative B Alternative A Alternative D Alternative C

  42. San Joaquin Water Needs & Issues San Joaquin ‘Next Steps’: • Significant Regional Consensus • No Single Project will Solve SJC Problem • Maximum Demand Side Actions • Up to 140,000 to 160,000 acre-feet of New Conjunctive Supply on Average Annually • Help Stop Overdraft and Saline Intrusion • Possible Flood Control/Stormwater Components • Inter-Regional Program/Project Participation

  43. How IRCUP May Help Address Inter-regional Needs

  44. How IRCUP May Help Meet Needs Summary: Inter-regional Water Needs

  45. How IRCUP May Help Meet Needs Size and Scope Options for IRCUP • Conjunctive use benefits and impacts vary depending on size/scope of IRCUP, e.g. • Use only existing facilities • Minor/moderate expansion of existing facilities • Build new/additional storage reservoir • Water supply benefits, costs and impacts correspond to size/scope of IRCUP • Facilitated stakeholder discussions should yield good understanding of agency needs and stakeholder interests

  46. PG&E Tributary Reservoirs Folsom South Canal Service to Ione / Camanche(AWA) Freeport Pipeline (100 mgd) Upstream Reservoirs Camanche Res. Mokelumne River Potential New Water Conveyance Pipelines Service to Camanche / Valley SpringsArea(CCWD) Mokelumne Aqueducts Groundwater Basin Recharge Facilities Potential Off Stream Reservoirs Directly to EBMUD (alternative to in lieu) Extract Stored Water For use in SJC or exchange with others Groundwater Basin IRCUP (Forum)

  47. How IRCUP May Help Meet Needs Environmental & Other Considerations (Considerations listed below are illustrative and represent an incomplete list) Fish & Wildlife • Fish habitat (downstream and/or upstream of project components) • Fish passage components • Hatchery program expansion / enhancements • Cold water pool expansion / cold water releases • Habitat creation, protection, enhancements Recreation • Public access features; trail system components • Fishing and rafting venues (put-ins, take-outs) • Facilities to support recreational uses

  48. How IRCUP May Help Meet Needs Cultural resources / Native American issues • Preservation and documentation of cultural resource features Historic Resources • Artifact preservation and restoration • Documentation programs / historic preservation assessments Other Considerations • Water rights (resolve long-standing water rights disputes) • Inter-regional approach and ‘right-sizing’ facilities may reduce the impacts of agency-specific stand-alone efforts • Capital and ongoing financing • Operations agreements

  49. Ongoing and Next Steps UMRWA – Planned 2-step process to seek MAC Stakeholder IRCUP consensus • Begin August/Sept - Develop Collaborative Decision Making Plan (Prop 84 Planning Grant) • 2011/2012 - Conduct IRCUP ‘facilitated negotiation’ per Decision Making Plan (new grant) Mokelumne River Forum – Work Plan • Outreach to potential IRCUP stakeholders • Planning Grant proposal for further study

  50. Ongoing and Next Steps UMRWA ‘Collaborative Decision Making Plan’ • Perform Conflict Assessment to determine needs and interests of MAC Region stakeholders • Develop, review and select preferred collaborative decision making process option • Develop joint problem statement which addresses stakeholder needs and interests • Prepare Collaborative Decision Making Plan to include facilitation requirements, info needs, ground rules, support resources, and more

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