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 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’
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)
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
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
IRCUP Basic Concept
Amador Water Needs & Issues
AWA Water Needs & Issues
AWA Water Needs & Issues
AWA Water Needs & IssuesCURRENT & PLANNED WATER SUPPLIES (AFA)
Supply Source 2010 2015 2020 2025 2030
Surface Water
(Mokelumne River)
16,150 17,200 17,200 17,200 17,200
Groundwater
(Supplier produced)
296 369 442 511 581
Recycled Water 0 TBD TBD TBD TBD
TOTAL 16,446 17,569 17,642 17,711 17,781
AWA Water Needs & Issues
EXISTING USAGE AFA
AWS Transmission Pipeline 5,000
Amador Canal / CAWP 3,200 / 1,100
Will Serves & Conditional Will Serves 500
City of Plymouth 400
SUBTOTAL 10,200
LAND USE AGENCIES GENERAL PLANS – DEMAND ESTIMATES
Cities of Ione / Sutter Creek / Jackson / Plymouth7,400 / 2,200 / 1,300 /
1,800
Martell Reg. Service Center & Nearby Special Planning Areas / CAWP / Camanche 1,800 / 1,000 / 1,200
SUBTOTAL 16,700
OTHER FUTURE WATER DEMAND ESTIMATES
County Parcels Eligible for Further Subdivision/ Elimination of Amador Canal 3,600 / (-1,900)
Ag Parcels w/in City of Plymouth SOI 2,200
Rancho Arroyo Seco 7,200
SUBTOTAL 11,100
Ag. Water Use Unknown
GRAND TOTAL 38,000
Estimated Water Demands (April 2009)
AWA Water Needs & Issues
Total Water Use (AFY) Draft Updated Urban Water Management Plan
Water Use 2005 2010 2015 2020 2025 2030
Total water deliveries 3,312 3,129 3,590 4,574 5,218 5,879 Sales to other water agencies 1,683 1,377 1,482 1,787 1,941 2,116 Additional water uses and losses 4,738 3,901 3,980 4,137 4,248 4,362
Total 9,733 8,407 9,052 10,498 11,407 12,356
AMADOR WATER AGENCYWater 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
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
Calaveras Water Needs & Issues
CCWD Water Needs & Issues
CCWD Water Needs & Issues
CCWD Water Needs & IssuesNew Hogan/Camanche/Valley Springs Sub-
RegionProjected Water Demands (AFA)
Water use category 2015 2020 2030 2040 2050
Single-family 2,372 2,536 3,029 3,562 4,215Multi family 17 18 22 26 31Commercial 137 147 175 206 244Institutional 59 63 76 89 105Landscape irrigation 169 180 215 253 300Groundwater recharge 1,500 1,500 3,500 5,500 5,500Raw water (agricultural use) 10,822 13,986 20,315 26,643 32,972Raw water (golf course irrig.) 60 60 60 60 60Recycled 245 245 245 245 245Unaccounted-for water 16% 12% 10% 8% 8%
Total: 15,381 18,735 27,637 36,584 43,672
CCWD Water Needs & Issues
Water use category 2015 2020 2030 2040 2050
Single-family 324 360 442 488 520Multi family 2 3 3 4 4Commercial 19 21 26 28 30
Institutional 8 9 11 12 13
Landscape irrigation 23 26 31 35 37Raw water (agricultural use) 0 2,000 2,000 2,000 2,000Recycled 0 0 0 0 0Unaccounted-for water 18% 14% 11% 8% 8%
Total: 376 2,419 2,513 2,567 2,604
West Point/Wilseyville/Blue Mountain Area
Projected Water Demands (AFA)
CCWD Water Needs & Issues
Sub-Region 2015 2020 2030 2040 2050
New Hogan/ Camanche/Valley Springs
15,381 18,735 27,637 36,584 43,672
West Point/ Wilseyville/Blue Mountain
376 2,417 2,513 2,567 2,604
Total 15,757 21,152 30,150 39,151 46,276
Combined Projected Water Demands (AFA)
of Sub-regions Proximate to Mokelumne
CCWD Water Needs & Issues
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
CPUD Issues and Needs
CPUD Issues and Needs
CPUD Projected Future Demands
Year # of services
Avg. Demand
(MGD)
Avg. Annual Demand
(AF)
2010 1,975 1.31 1,468
2015 2,180 1.45 1,624
2020 2,407 1.60 1,792
2025 2,658 1.76 1,972
2030 2,934 1.95 2,185
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
EBMUD Water Needs & Issues
EBMUD Water Needs and IssuesWater 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 Transfersb) Groundwater Banking / Exchange (various locations)c) Desalinationd) 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
EBMUD Water Needs and Issues
Demand (MGD) 2010 2015 2020 2025 2030 2035 2040
Customer Demand 251 266 280 291 304 308 312
Adjusted for Conservation
-26 -32 -43 -49 -56 -59 -62
Adjusted for Recycled Water
-9 -11 -16 -18 -19 -20 -20
Planning Level of Demand
216 223 221 224 229 229 230
EBMUD Demand Projections:•Uses land-use based method to project demands •Consistent with anticipated levels of development in community planning policies
EBMUD’s Demand Projections (2010 UWMP)
Demand recovery trend from 2010 to
2020 based on previous
trends
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)
EBMUD’s Projected 2040 Water Supply
* 11% Shortfall to be met by Supplemental Supply Option/s
San Joaquin WaterNeeds & Issues
2005 Water Use 2030 Land Use
Figure 1-X
GROUNDWATER BASINSOF SAN JOAQUIN COUNTY
NORTHEASTERN SAN JOAQUIN COUNTY GROUNDWATER BANKING AUTHORITY
Source: California Spatial Information Library at http://www.gis.ca.gov/
CONTRACOSTA
COUNTY
ALAMEDACOUNTY
STANISLAUSCOUNTY
CALAVERAS COUNTY
MODESTOSUB-BASIN
EASTERN SAN JOAQUINSUB-BASIN
TRACYSUB-BASIN
COSUMNESSUB-BASIN
N
10 0 10 Miles
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
Ground Water Elevations
SJ Water Needs & Issues
Groundwater Management Area – portion of San Joaquin County that overlies the Eastern San Joaquin County, Cosumnes, and Tracy Sub-Basins
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)
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
Conjunctive Use Projects
Groundwater BasinAlternative 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
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
How IRCUP May Help Address Inter-regional Needs
Summary: Inter-regional Water NeedsRegional Component
Basis of Need Timing
AmadorMeet future demands of
planned growthYear 2030
Calaveras
Meet future demands in west county and West Point,
provide storage, and mitigate groundwater overdraft
As soon as possible
East Bay MUDSecure supplemental dry
year supply (drought mitigation)
Year 2030 +/-(current assumption based on implementation order)
San JoaquinAddress groundwater
basin overdraft / salt water intrusion
As soon as possible
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
How IRCUP May Help Meet Needs
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
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
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
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
Ongoing and Next StepsUMRWA ‘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
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 & ConditionsAttempt 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)
Conclude Workshop
• Thank you……
• UMRWA Board meeting begins at 1:00
• Lunches provided for those who made prior arrangements