Elsinore Valley Municipal Water District. Groundwater Management Plan Adoption. June 10, 2004

Transcription

1 Elsinore Valley Municipal Water District Groundwater Management Plan Adoption June 10, 2004

2 What is a Groundwater Management Plan? A plan to manage groundwater resources by: Improving the understanding of basin hydrology Enhancing water supply reliability Managing basin yield Maintaining suitable water quality

3 California Water Code Provides Authority to Adopt a GWMP AB Groundwater Management Planning Act Provides basis for basin management Establishes plan contents and adoption procedures Provides the authority of a water replenishment district

4 Elsinore Groundwater Basin $T TVP Connection #Y #Y #Y Canyon Lake WTP #Y #Y #Y #Y #Y #Y #Y #Y LEGEND #Y $T Groundwater Wells MWD Connections Elsinore Basin Water Bodies Fault (known) Fault (inferred) EVMWD Boundary Streets Interstate 15 #Y AVP Connection $T

5 Management issues facing the Elsinore Basin Domestic demand will double in next 20 years Imported water will be 80% of supply in 2020 Groundwater will be used for lake augmentation Groundwater levels are declining More stringent arsenic standard will drive water quality improvement needs Other water quality issues Potential for land subsidence

6 Why do a Groundwater Management Plan? Because water demand is projected to double over the next 20 years, cooperative groundwater management is required to achieve a sustainable water balance in the Elsinore Basin.

7 EVMWD Water Demands 55,000 Projected Demand (acre-ft/yr) 50,000 45,000 40,000 35,000 30,000 25,000 Wet Year Normal Year Dry Year 20, Year

8 The goal of this Groundwater Management Plan......is to ensure a reliable, high quality, cost-efficient groundwater supply for the users of the Elsinore Basin in an environmentally responsible manner.

9 EVMWD Received $1.84M of State Funding in 2001 Project Project Cost DWR Funding Source Elsinore Basin GWMP $659,000 $250,000 Coldwater Basin Feasibility Study $208,000 $99,000 Back Basin Injection Pilot Project $2,028,550 $1,493,250 Funded AB303 Funded Prop 13 Funded Prop 13 Total DWR Funded Projects $2,895,550 1,842,250

10 Groundwater Management Plan Groundwater Management Plan Status Start of Project Data Collection Conceptual Hydrogeology Stakeholders Meeting #1 Monitoring Plan Groundwater Modeling Stakeholders Meeting #2 Draft Plan Final Draft Distributed Sept. Oct. Nov. Dec. Jan. Feb. Mar. Apr. May Jun

11 Management Strategies Store imported water using dual purpose wells or surface spreading Increase use of local supplies with surface spreading Save groundwater for dry years with in-lieu recharge Save groundwater for potable use only Develop new sources of supply Maximize use of recycled water for lake make-up Water conservation Measure progress with basin monitoring Protect groundwater quality with new policies

12 Groundwater Management Plan Recommendations Comprehensive Conjunctive Use Program Groundwater recharge with dual purpose wells In-lieu recharge (replace pumping with imported water) Additional Facilities to Meet Demands Lake Level Maintenance Using Recycled Water Water Conservation Groundwater Monitoring Program Water flow/level/quality tracking Subsidence study Well inventory Basin Advisory Committee Groundwater-related policies

13 Groundwater Management Plan Future Activities Plan Adoption Agency Coordination Phasing of Activities Funding Options Basin Operation Horsethief Canyon WWTP %[ McVicker Cyn Leach Cyn #³ Lake St Grand Ave Robb Rd. I-15 Lakeshore Dr %[ Riverside Dr Grand Ave TVP Connection Temescal Wash Regional WWTP Lake Outlet ÊÚ Railroad Ave Canyon Lake %[ %[ Canyon Lake WTP Railroad Cyn Dam San Jacinto River Mission Trail Railroad Canyon WWTP Lake Elsinore Legend ÊÚ Lake Elsinore Outlet %[ Wastewater Treatment Plant %[ Water Treatment Plant #³ AVP Connection #³ TVP Connection EVMWD Production Wells Interstate 15 Temescal Wash Surface Water Bodies Elsinore Watershed Boundary Leach and McVicker Canyons Back Basin Area Spreading Grounds Railroad Canyon Dam Feet Feet N Grand Ave Back Basin Area Corydon St Mission Trail I-15 AVP Connection #³

14 Groundwater Management Plan Adoption Procedures Obtain Additional Public Input Prepare Environmental Documents Initial Environmental Study (IES) Mitigated Negative Declaration (MND) Mitigation Monitoring and Reporting Plan (MMRP) Notice of Determination (NOD) District Adoption Adopt the Groundwater Management Plan First Public Hearing to Adopt the Resolution of Intention (ROI) Second Public Hearing to Receive Protests and Adopt the Groundwater Management Plan

15 Groundwater Management Plan Adoption Project Schedule Draft Final GWMP Completed in June 2003 Present ROI to EVMWD Board on June 10, 2004 Complete the IES and MND in August nd Public Hearing, Adoption of CEQA and GWMP in October 2004

16 Elsinore Valley Municipal Water District Groundwater Management Plan Adoption June 10, 2004