Montecito Water District Overview of Groundwater Basin Montecito Planning Commission November 19, 2014 1 Montecito Water District Total Service Area - 9,225 Acres Population Served - 13,500 Communities Served - Montecito, Summerland, Toro Canyon 2 Groundwater Studies / Reports • Safe Yield Evaluation of the Montecito Basin and Toro Canyon Area; Hoover, March 1980 • Original Report and Addendum, Hydrogeologic Assessment, Determination of Groundwater in Storage within the Montecito Water District; Slade, October 1991 • Hydrogeologic Investigation, Montecito Ground Water Basins; Geotechnical Consultants, Inc., January 1974 • Hydrogeologic Assessment, Proposed Water Augmentation Measures, Seaward Migration of Groundwater; Slade, August 5, 1987 3 Groundwater Studies / Reports • Delineation of Montecito Basin Evaluation of Recharge to Basin from Consolidated Rocks; Hoover, April, 1979 • Hydrogeologic Assessment of Bedrock Water Well Sites Within the Montecito Water District; Slade, August 1984 • Hydrogeologic Assessment, Water Augmentation Measures; Slade, August 1987 • Development of Additional Water Supplies in the Doulton Tunnel, Proposal; BCI Geonetics, Inc., August 14, 1989 4 MONTECITO GROUNDWATER BASIN STORAGE UNIT MAP 5 MONTECITO WATER DISTRICT SERVICE BOUNDARY PARCEL MAP 6 MONTECITO WATER DISTRICT PRODUCTION WELLS 7 MONTECITO WATER DISTRICT GROUNDWATER MONITORING PROGRAM 8 MONTECITO WATER DISTRICT MAP OF WELL SITES 9 Amapola Well - Historical Water Level Spring Monitoring Periods 40 Elevation Above Sea Level (ft) 30 20 10 0 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 -10 -20 10 Amapola Well Production 17 16 Production (AF) 15 14 13 12 11 10 9 8 11 Valley Club Well - Historical Water Level Spring Monitoring Periods 240 Elevation Above Sea Level (ft) 220 200 180 160 140 120 100 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 12 Valley Club Well Production 5.0 4.5 4.0 Production (AF) 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 13 STORAGE UNIT 3 PROPERTIES W/O DISTRICT SERVICE 14 STORAGE UNIT 3 WELL LOCATIONS 15 Groundwater Management Recommendations Prepare and send a letter to SB County Environmental Health Department and the Board of Supervisors requesting: 1. During the Water Shortage Emergency, the immediate suspension on the issuance of new groundwater well permits and moratorium on new water well construction within the Montecito Water District service boundary. * * Does not affect the permitting for the replacement of existing producing wells. 16 Groundwater Management Recommendations SANTA BARBARA COUNTY PLANNING & DEVELOPMENT 2. All properties subject to new land use permits with existing (and future*) wells (within the Montecito Water District service boundary) shall include the following conditions: a) Wells to be equipped with a District approved water meter and to provide District with annual groundwater usage/extraction data. b) Owner to participate in the District’s groundwater monitoring program permitting the District reasonable property/well access for collection of bi-annually well static water level. c) All properties with wells shall have an approved backflow detection device installed at the District meter and be enrolled in the District’s Cross Connection Protection Program. *Future wells are those that would be permitted following suspension of the recommended new water well drilling moratorium. 17
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