Demonstration Recharge Extraction and Aquifer Management Project (DREAM Project)

Transcription

1 Demonstration Recharge Extraction and Aquifer Management Project (DREAM Project) Public Meeting Lodi Grape Festival Jackson Hall February 24,

2 Topics to be Covered Groundwater Levels DREAM Project Concept DREAM Project Team DREAM Project Facilities DREAM Project Schedule 2

3 Groundwater Elevations

4 Why We Should Act New and Increasing Regulatory Requirements Sustainable Groundwater Management Act Requires Sustainability by 2040 State Intervention if no Local Management Diminishing Opportunities for Surface Water Use as a Means of Replenishing Groundwater

5 Fundamentals Groundwater banking is an arrangement where an entity temporarily stores water in the underlying basin for future use. Groundwater banking operations remain under local control. The project must provide benefits that make local conditions better than without the project. Local mechanism to monitor, measure impacts and avoid or limit potentially negative impacts. 5

6 Project Team Local Growers Use Surface Water In-lieu of Pumping Groundwater North San Joaquin Water Conservation District (NSJWCD) Deliver Surface Water to Local Growers Manage Groundwater through Delivery of Surface Water East Bay Municipal Utility District (EBMUD) Provide Water for Banking Project Pay for Costs of DREAM Project Demonstration - $4M Receive up to Half of Water Banked as a Customer of the Locally Controlled Groundwater Banking Operation Stockton East Water District (SEWD), Woodbridge Irrigation District (WID), San Joaquin Farm Bureau Federation Project Development San Joaquin County Permitting of Groundwater Export Back to EBMUD Monitoring of Extractions 6

7 Objectives, Principles and Methods Overall Objectives: Improve supply reliability and sustainability for all parties Improve groundwater basin conditions Demonstration Project Phase 1 Objective: Develop substantial evidence that a groundwater recharge, storage and extraction project is feasible prior to investment of large-scale capital facilities Feasibility Established By: NSJWCD, SEWD, SJC, and EBMUD consensus. Local support for the project. Technical and financial feasibility. Able to be permitted by SJC. 7

8 The Demo Project must: Design Constraints Result in a Groundwater Export Permit. Physically export banked groundwater. Improve basin conditions. Fit within the $4M budget. Maximize additional value beyond the Demonstration. Value added to NSJWCD South System. Pump station upgrades as part of $4M significantly reduce cost of water deliveries. Upgrades to diversion facilities. Leverage additional funding opportunities WaterSmart Grant DREAM Project neighbors support. Minimum fill cover for pipeline. Tees and blind flanges along return pipeline. Leverage existing wells for pump back and monitoring. 8

9 DREAM Project Site Plan Surface Water Delivery Rehab NSJWCD Pump Station Convey Surface Water for Irrigation In-lieu recharge ~350 acres; ~ 1000 acre-feet New diversion structure New pump station, electrical & meter 2.8 mile return pipeline HDPE pipeline 4 cover ~ 500 acre-feet pumped out for export back to EBMUD ~ 500 acre-feet to remain in basin 9

10 Dream Project Return Pipeline 2.8 mile pipeline 2 road crossings 2 stream crossings 12 diameter Use farm roads 1 attached to farm bridge 1 trenched $1.85 M With 20% contingency 10

11 Dream Project Monitoring Use Existing Extraction Well 1000 gpm Pumping for Export to Occur during Non-Irrigation Season Monitoring Network Of Existing Wells Local Monitoring Committee 11

12 Schedule February 17 Presented DREAM Project to Advisory Water Commission. February 24, 2016 Public meeting inviting landowners within 2-miles of extraction well. Early March Publish NOI to adopt MND (begins 30-day comment period). Early March Submit Export Permit application to Director of PW w/proposed MND. Early March Publish Notice of Permit Application (begins 30-day comment period). Early April Close public comment, prepare final MND. April 20, 2016 AWC to consider recommending GW Export Permit Approval. May 2016 Board of Supervisors consideration of CEQA documents and sets public hearing date for GW Export Permit. June Public hearing on application; Board considers issuing GW Export Permit. 12

13 Questions?