Groundwater Basin Presentation - Santa Barbara County Planning

Montecito Water District
Overview of Groundwater Basin
Montecito Planning Commission
November 19, 2014
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Montecito Water District
Total Service Area - 9,225 Acres
Population Served - 13,500
Communities Served - Montecito, Summerland,
Toro Canyon
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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
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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
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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
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STORAGE UNIT 3
PROPERTIES W/O DISTRICT SERVICE
14
STORAGE UNIT 3
WELL LOCATIONS
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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.
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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.
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