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Eastern San Joaquin Groundwater Basin Groundwater Management Plan Northeastern San Joaquin County Executive Summary Groundwater Banking Authority 13 Table ES-6 Groundwater Option Comparisons Option Type Recharge Method Improvement Costs ($/af) Infrastructure Requirements Land Requirements Effectiveness Operation/ Maintenance Wet Year Flows ~$500 On or off-stream regulating reservoir Extreme for new reservoir Very effective based on reservoir size and frequency Very high requirements Water Transfers - Out of Basin $200-400 Conveyance and storage Potentially land intensive Effective based on quantity of water and agreement duration Varies with infrastructure requirements and year to year availability Area of Origin Priority $0-$350 Use of existing or new infrastructure Potentially land intensive Very effective Varies with infrastructure requirements Reservoir Re- operation ~$100 Use of existing infrastructure and storage Minimal Less effective Minimal based on existing facilities Surface Supply Options Water Transfers - In Basin ~$100-$200 Minor conveyance Minimal Less effective Varies with infrastructure requirements and year to year availability Field Flooding $50 - $100 Uses Existing Infrastructure Uses seasonally fallow areas Somewhat effective only available seasonally Significant effort Spreading Basin/ Recharge Pond $100 - $150 New Infrastructure Requires relatively large dedicated areas Potentially effective, requires detailed field testing Significant effort Recharge Pit $400 - $450 New Infrastructure Requires dedicated areas Potentially effective, requires detailed field testing Significant effort Leaky Canal Varies New Infrastructure Land intensive Potentially effective, conveyance benefits Significant effort Injection Wells $150 - $200 New Infrastructure Requires dedicated areas Potentially effective, requires extensive well field Significant effort Agricultural In- lieu $200 - $250 New / Or Existing Infrastructure Existing Land Use Very effective based on quantity of water Additional effort required by owner and district Urban In-lieu ~$250-$400 New / Or Existing Infrastructure Existing Land Use Very effective based on quantity of water Requires treatment plant O&M costs Groundwater Recharge Options Regional Groundwater Banking $200-$300 New / Or Existing Infrastructure Potentially land intensive Very effective, financial assistance through third party Significant effort Water Reclamation $300-$500 Retrofit of existing facilities Minimal Less effective due to treatment costs and public perception Requires treatment plant O&M costs Agricultural Water Conservation $200-$250 New Infrastructure Minimal Potentially effective Significant effort Urban Water Conservation $200-$250 New Infrastructure Minimal Potentially effective Minimal Other Options Crop Rotation/Land Fallowing ~$50 None Potentially land intensive Potentially effective if mitigated Minimal Source: San Joaquin County Water Management Plan Volume I Farmington Groundwater Recharge and Seasonal Habitat Study