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 Objectiv es 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 I.IRCUP Basic Concept II.MAC Member water needs and issues III.San Joaquin water needs and issues IV.How IRCUP May Help address needs –IRCUP scope and size options –Environmental and other considerations V.Ongoing and Next Steps VI.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

11. CURRENT & PLANNED WATER SUPPLIES (AFA) Supply Source20102015202020252030 Surface Water (Mokelumne River) 16,15017,200 Groundwater (Supplier produced) 296369442511581 Recycled Water0TBD TOTAL16,44617,56917,64217,71117,781

12. AWA Water Needs & Issues EXISTING USAGE AFA AWS Transmission Pipeline5,000 Amador Canal / CAWP3,200 / 1,100 Will Serves & Conditional Will Serves500 City of Plymouth400 SUBTOTAL10,200 LAND USE AGENCIES GENERAL PLANS – DEMAND ESTIMATES Cities of Ione / Sutter Creek / Jackson / Plymouth 7,400 / 2,200 / 1,300 / 1,800 Martell Reg. Service Center & Nearby Special Planning Areas / CAWP / Camanche1,800 / 1,000 / 1,200 SUBTOTAL16,700 OTHER FUTURE WATER DEMAND ESTIMATES County Parcels Eligible for Further Subdivision/ Elimination of Amador Canal3,600 / (-1,900) Ag Parcels w/in City of Plymouth SOI2,200 Rancho Arroyo Seco7,200 SUBTOTAL11,100 Ag. Water UseUnknown GRAND TOTAL38,000 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

19. New Hogan/Camanche/Valley Springs Sub-Region Projected Water Demands (AFA) Water use category20152020203020402050 Single-family 2,3722,5363,0293,5624,215 Multi family 1718222631 Commercial 137147175206244 Institutional 59637689105 Landscape irrigation 169180215253300 Groundwater recharge 1,500 3,5005,500 Raw water (agricultural use) 10,82213,98620,31526,64332,972 Raw water (golf course irrig.) 60 Recycled 245 Unaccounted-for water 16%12%10%8% Total: 15,38118,73527,63736,58443,672

20. CCWD Water Needs & Issues Water use category20152020203020402050 Single-family 324360442488520 Multi family 23344 Commercial 1921262830 Institutional 89111213 Landscape irrigation 2326313537 Raw water (agricultural use) 02,000 Recycled 00000 Unaccounted-for water 18%14%11%8% Total: 3762,4192,5132,5672,604 West Point/Wilseyville/Blue Mountain Area Projected Water Demands (AFA)

21. CCWD Water Needs & Issues Sub-Region20152020203020402050 New Hogan/ Camanche/ Valley Springs 15,38118,73527,63736,58443,672 West Point/ Wilseyville/ Blue Mountain 3762,4172,5132,5672,604 Total 15,75721,15230,15039,15146,276 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 Projected Future Demands Year # of services Avg. Demand (MGD) Avg. Annual Demand (AF) 20101,9751.311,468 20152,1801.451,624 20202,4071.601,792 20252,6581.761,972 20302,9341.952,185

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 Demand (MGD)2010201520202025203020352040 Customer Demand251266280291304308312 Adjusted for Conservation -26-32-43-49-56-59-62 Adjusted for Recycled Water -9-11-16-18-19-20 Planning Level of Demand 216223221224229 230 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. EBMUD Water Needs and Issues Court Ruling Identified Deficiencies with Environmental Review of Enlarge Pardee element + suggested consideration of an Enlarge Los Vaqueros option Enlarge Pardee Reservoir (up to 37.5 MGD) Rationing Level: up to 15% (32 MGD) Conservation Level: D (39 MGD) Recycling Level: 3 (11 MGD)

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

33. San Joaquin Water Needs & 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 Alternative A Alternative B Alternative C Alternative D No Project Alternative –Continued decline Beneficial for: –Groundwater levels –Groundwater recharge –Land Subsidence –Wells –Surface Water –Reduce Salt Intrusion

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. Summary: Inter-regional Water Needs Regional Component Basis of NeedTiming Amador Meet future demands of planned growth Year 2030 Calaveras Meet future demands in west county and West Point, provide storage, and mitigate groundwater overdraft As soon as possible East Bay MUD Secure supplemental dry year supply (drought mitigation) Year 2030 +/- (current assumption based on implementation order) San Joaquin Address groundwater basin overdraft / salt water intrusion As soon as possible How IRCUP May Help Meet Needs

45. 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 How IRCUP May Help Meet Needs

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

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

51. Mokelumne Forum IRCUP Work Plan  Outreach Efforts - Interest Groups: Environmental, Agricultural, Business, etc. communities - Community / Electeds (political officials, recreation interest, Native Americans) - Alternating Bimonthly Forum Meetings and Subgroup Teleconferences (next meeting August 2011)  Deliverables (by end of 2011) - Re-worked / revisited IRCUP Terms & Conditions Attempt to have Board approvals / integrate IRCUP interest groups principles as attachments - DWR Planning Grant Application to further study of IRCUP concept (Prop 84 / Round 2)

52. Conclude Workshop Thank you…… UMRWA Board meeting begins at 1:00 Lunches provided for those who made prior arrangements