Transcript Upper Claremont Heights CUP - Southern California Water

Groundwater Basin
Assessment Study
Southern California Water Dialogue
January 24, 2007
1
Approved Projects
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
3
12
4 9
5
11
7
28
N. Las Posas (Phases 1&2)
Long Beach
Foothill MWD
TVMWD / La Verne
Chino Basin
Orange County Basin
Compton
Long Beach - Lakewood
Upper Claremont Heights – TVMWD
Western MWD /Elsinore Valley
10
6
Pending Projects
11.
Central Basin MWD
Identified Projects
12.
Raymond Basin - Foothill MWD & Pasadena
In-Basin Groundwater Storage Projects
Water Resource Management
January 24, 2007
In-Region Groundwater Storage
Resources
Existing
Identified
IRP Target
Thousands AF
350
300
250
200
150
100
50
0
2005
Water Resource Management
2006
2010
2020
2025
January 24, 2007
Scope of Assessment Study
 Use of existing data and reports
 Service area overview
 Detailed review of 23 sub-areas
Water Resource Management
January 24, 2007
Scope of Assessment Study
 Basin hydrogeology
 Governance
 Facilities and operations
 Water levels
 Water quality
 Storage programs
Water Resource Management
January 24, 2007
Groundwater
Basins
Water Resource Management
January 24, 2007
Water Resource Management
January 24, 2007
Raymond Basin
Monkhill
Pasadena
Santa
Anita
Water Resource Management
January 24, 2007
MSGB Production
300,000
Safe Yield = 152,700 AFY
Production (AFY)
250,000
200,000
150,000
100,000
Production
50,000
Operating Yield
0
Water Resource Management
January 24, 2007
2004/05
2003/04
2002/03
2001/02
2000/01
1999/00
1998/99
1997/98
1996/97
1995/96
1994/95
1993/94
1992/93
1991/92
1990/91
1989/90
1988/89
1987/88
1986/87
1985/86
Fiscal Year
MSGB Key Well Water Level
300
Water Level (feet MSL)
275
250
225
A
Operating Range
200
175
150
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994
1993
1992
1991
1990
Water Resource Management
1989
1988
1987
1986
1985
Source: Stetson, 2006
Fiscal Year
January 24, 2007
ULARA Precipitation
45
Precipitation (inches)
40
35
Average =
18.6 inches
30
25
20
15
10
5
0
2003/04
2001/02
1999/00
1997/98
1995/96
1993/94
1991/92
Water Resource Management
1989/90
1987/88
1985/86
Source: ULARA, 2006
Water Year
January 24, 2007
Direct Groundwater Recharge (AFY)
Central Basin Direct Recharge
300,000
Spreading - Runoff
Spreading - Imported
Spreading - Recycled
Injection - Imported
Average ~141,000 AFY
250,000
200,000
150,000
100,000
50,000
0
2004/05
2003/04
2002/03
2001/02
2000/01
1999/00
1998/99
1997/98
1996/97
1995/96
1994/95
1993/94
1992/93
1991/92
1990/91
1989/90
1988/89
1987/88
1986/87
1985/86
Water Year
Water Resource Management
January 24, 2007
Chino Basin Aquifer Capability
Parameter
Chino Basin
Cucamonga Basin
Structure
Aquifer(s)
Upper aquifer: Unconfined
Deep aquifer: Confined
Unconfined
Yield and Storage
Natural Safe Yield
140,000 AFY
13,800 AFY to
22,200 AFY
Adjudication Amount
145,000 AFY
22,721 AFY
Total Storage
~ 6 million AF
Unknown
Unused Storage Space
~1 million AF
Unknown
Avail. Storage Space
~500,000 AF
Unknown
Water Resource Management
January 24, 2007
Central Basin Governance
Agency
Role
California Department of
Water Resources
Court appointed Watermaster to
manage water quantity
Water Replenishment District
of Southern California
Groundwater replenishment in Central
and West Coast Basins
Los Angeles County
Department of Public Works
Operation of spreading facilities and
Alamitos Barrier facilities
Sanitation Districts of
Los Angeles County
Produces recycled water for Montebello
Forebay Spreading Grounds
Los Angeles Regional
Water Quality Control Board
Issuance of permit for spreading of
recycled water in Montebello Forebay
Water Resource Management
January 24, 2007
Chino Spreading Capability
(Partial List)
Basin
Wetted
Area
(acres)
Recharge Recharge
Capacity Capacity
(cfs)
(AFY)
Brooks
Street
7.7
5
Montclair
28.2
7th & 8th
Street
Source Water
Owner
3,000
Runoff
Imported
CBWCD
10
7,770
Runoff
Imported
CBWCD
14.5
5
1,350
Upland
10.1
4
2,730
Runoff
Imported
City of
Upland
Ely
35.7
3
2,880
Runoff
Recycled
SBCFCD/
CBWCD
Water Resource Management
Runoff
SBCFCD
January 24, 2007
MSGB Water Quality Issues
Constituent
TDS
(mg/L)
Range
Description
Municipal wells indicate a range of
90 to 4,288
172 to 914 mg/L
Average ~ 367
(average of 318 mg/L)
Nitrate [as N]
(mg/L)
ND to 27.8
Exceed nitrate MCL in eastern
portion of basin.
VOCs
[TCE and PCE]
(μg/L)
TCE: ND to 499
PCE: ND to 330
64 wells are currently treated for
VOCs
ND to 183
22 wells removed from service due
to perchlorate levels (treatment
facilities are currently online)
ND to > 2
8 local wells have NDMA above
action level of 2 ppt
(3 facilities currently in operation)
Perchlorate
(μg/L)
NDMA
(ppt)
Water Resource Management
January 24, 2007
MSGB Treatment Operations
Treatment
Type
# of
Treatment
Contaminant
Wells
Target
Treatment Amount
Cost
Treated
($/AF)
(AFY)
Air Stripping
39
VOCs
ND
$25
47,000
LPGAC
16
VOCs
ND
Varies
14,000
9
1,4-Dioxane
ND
$100
6,000
Ion Exchange
17
Perchlorate
ND
$200
6,000
Ultra-Violet
12
NDMA
ND
$100
6,000
Total
93
--
ND
--
79,000
Ultra-Violet/
Oxidation
Water Resource Management
January 24, 2007
Summary
 Baseline report that expands upon
DWR Bulletin 118 and the AGWA
report
 Overview of basin management and
use
 Report complete later this year
Water Resource Management
January 24, 2007
Water Resource Management
January 24, 2007