How San Diego Prepared for this Drought… …and the Next ......day to San Diego County’s water...
Transcript of How San Diego Prepared for this Drought… …and the Next ......day to San Diego County’s water...
How San Diego Prepared for this Drought… …and the Next One, and the Next One
City of San Diego Retired Employees’ Association
September 8, 2015
Frank Belock – Deputy General Manager
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San Diego County Water Authority
Wholesale water agency created by State Legislature in 1944
‣ 24 member agencies ‣ 36-member board of
directors ‣ Serves 3.2 million people and
region’s $218 billion economy
Imports ~80% of water used in San Diego County ‣ Builds, owns, operates and
maintains regional water infrastructure
‣ Largest member agency of Metropolitan Water District of Southern California
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19% State Water Project
(MWD supplies)
17% Local Supplies
Colorado River Aqueduct
64% Colorado River
(Long-term Transfers and
MWD supplies)
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Average Annual Precipitation in the Southwest
San Diego: 10.34”
Los Angeles: 14.93”
San Francisco: 20.78”
Sacramento: 21.17”
-2.0
0.0
2.0
4.0
6.0
8.0
10.0
Departure from Normal Monthly Temperature at Lindbergh Field
19 of Last 20 Months Hotter than Normal
Temperature Matters
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Hotter
Cooler
235
216
190
152 143
167
100
150
200
250
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90
20
00
20
05
20
10
20
15
20
20
Tota
l Pota
ble
GPC
D
SBX7-7 2020 Target
The reduction in potable per capita water use since 1990 offsets the need for over 300,000 acre-feet per year within the region.
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Sacramento River Runoff is the sum of Sacramento River flow at Bend Bridge, Feather River inflow to Lake Oroville, Yuba River flow at Smartville, and American River inflow to Folsom
Source: DWR
Droughts are Common in California Sacramento River Unimpaired Runoff through 2015
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1991
550 TAF 95%
28 TAF 5%
Total = 578 TAF
TAF=Thousand Acre-Feet
Imperial Irrigation District Transfer
Metropolitan Water District
All American & Coachella Canal Lining
Local Surface Water
Groundwater
Recycled Water
Seawater Desalination Potable Reuse (Includes conceptual and planned projects)
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2015
Total = 534 TAF
304 TAF 57%
5 TAF 1%
18 TAF 3%
27 TAF 5%
80 TAF 15% 100 TAF
19%
Estimated 2020
Total = 587 TAF
150 TAF 26% 48 TAF
8%
27 TAF 5%
44 TAF 7%
80 TAF 14%
190 TAF 32%
48 TAF 8%
Projected 2035
Total = 680 TAF
120 TAF 18%
50 TAF 7%
30 TAF 4%
50 TAF 7%
80 TAF 12%
200 TAF 30%
50 TAF 7%
100 TAF 15%
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Historic Investments in Infrastructure
Water Authority secures new, more reliable Colorado River supplies Imperial Irrigation District transfer
200,000 AF/year for 45 to 75 years
Canal-lining projects 80,000 AF/year for 110 years
Key to diversification strategy Provides 180,000 acre-feet in 2015
By 2021, 34% of region’s supply Lining the Coachella Canal
IID and Canal Lining Deliveries 2003-2021
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Supply allocation from Metropolitan Water District • MWD ordered Level 3, 15% cutback
• July 1, 2015 – June 30, 2016 allocation period
• Agencies pay surcharge if they exceed
Demand reductions required statewide
• Governor's April 1 Executive Order: 25% water savings mandate
• State Water Board emergency conservation regulations
Establishes individual reduction targets for each member agency
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28%
20%
36%
20% 20%
20%
32%
20% 20%
32%
36%
28%
32%
16%
28%
36%
12%
24%
36%
20%
0%
10%
20%
30%
40%
50%C
arl
sbad
Escondid
o
Fallbro
ok P
UD
Helix W
D
Lakesid
e W
D
Oceansid
e
Olivenhain
MW
D
Ota
y W
D
Padre
Dam
MW
D
Pow
ay
Rain
bow
MW
D
Ram
ona M
WD
Rin
con d
el D
iablo
MW
D
San D
iego
San D
ieguit
o W
D
Santa
Fe ID
Sw
eetw
ate
r A
uth
ori
ty
Vallecit
os W
D
Valley C
ente
r M
WD
Vis
ta ID
State Water Board Emergency Regulations Member Agency Conservation Standards*
* Based on R-GPCD data current as of 6/11/15
~20% Region
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0
100
200
300
400
500
600
Sup
ply
(T
AF)
~1% Supply Shortfall
Estimated FY 2016 Potable M&I Demand ~ 523 TAF *
Local Supplies 25 TAF
Long-Term Colorado River Transfers 180 TAF
Water Authority CDP 39 TAF
MWD Initial Allocation
M&I 274 TAF
• Based on actual FY 2014, escalated at 1/2% per year. • MWD supply allocation in effect 7/1/15 through June 30, 2016.
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Water conserved by residents and businesses is being stored in the newly expanded San Vicente Reservoir ◦ 42,000 AF of 100,000 AF
carryover supplies stored to date
Potential to store 100,000 AF by June 30, 2016
Reservoir already holds 36,000 AF of 52,000 AF emergency storage target
San Vicente Dam Raise Project 337’ high, 1,420’ long at top, 20’ wide at crest, 251 feet wide at the base. • Tallest Dam-Raise in U.S. History • Tallest of its type in the World • Approved: 1998 • Carryover Storage component added in 2003 • Complete: 2014 • Cost: $400 million • Benefit: 152,000 AF of new storage:
• 100,000 AF carryover • 52,000 AF emergency
Top of old Dam
Old Tower
New Tower
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50 million
gallon per day
seawater
desalination
project
Largest, most
advanced
seawater
desalination
facility in the
Western
Hemisphere
Utilizing
existing in-take
facility
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Outfall
Mouth of Lagoon
Carlsbad Seawater Desalination Project
• $1 billion investment
• 56,000 acre-feet/year of drought-proof supplies
• ‘Take or Pay’ agreement for 48,000 acre-feet/year
• 95+% Complete
• Expected on-line in Fall 2015
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Poseidon ◦ Permit, Design, and Build the Desal Plant
◦ Permit, Design, and Build the Conveyance Pipeline (design-build agreement)
◦ Own, operate, and maintain the Desal Plant
◦ Supply Product Water that meets water quality requirements
Water Authority ◦ Timely Construction of Required Aqueduct Improvements
◦ Own, operate, and maintain the conveyance facilities
◦ “Take or Pay” for Product Water, if it meets specifications (minimum commitment of 48,000 AF/Year)
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Pacific
Ocean
Encina
Power
Station
Desal
WTP
Carlsbad
San Marcos
TOVWTP
Pip
elin
e 4
Pip
elin
e 3
P3 relining
5-miles
New 54-inch steel pipe
10-miles
Pipeline
Interconnection
TOVWTP
Improvements
Project Components
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# of instruments: 1,300 # of membranes: 16,000
# of motors: 146 # of vessels: 2,016
# of pumps: 121 # of energy recovery units: 144
# of valves: 3,200 # of flocculation chambers: 4
# of actuators: 652 # of filter basins: 18
Miles of onsite pipe: 15 Miles of new conveyance pipe: 10
Miles of conduit: 50 Miles of relined aqueduct pipe: 5
# of Micronic filters: 16 # of labor hours: 1,126,000
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All working together to produce 50 Million Gallons a Day
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San Diego’s Potable Reuse Plan
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Pure Water San Diego
Initial phases:
15 mgd by 2023
30 mgd by 2027
Future phase:
83 mgd by 2035
San Vicente Reservoir
Otay Reservoir
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Adds 72 million gallons of recycled water per day to San Diego County’s water supply portfolio at full build-out
Reduces impact of inevitable water supply shortages on San Diego County’s $191 billion economy
Creates more than 7,000 jobs, according to Council of Economic Advisers estimates
Serves as green infrastructure by reducing wastewater flows to the Pacific Ocean, offsetting water imports from the Colorado River and the California State Water Project
Crosses jurisdictional boundaries of 10 public agencies and Marine Corps Base Camp Pendleton, demonstrating efficiency in government
Constructs 90 miles of recycled water pipe, improvements at 9 treatment plants, and 7 potable reuse sites to serve a cumulative demand of more than 30,000 acre-feet per year by 2035
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Identified Groundwater Basins with Potable Reuse Opportunities ◦ San Elijo Valley Basin
◦ San Dieguito Basin
◦ Mission Basin
◦ Escondido Valley Basin
◦ San Marcos Basin
Suitable Surface Reservoirs Also Identified For Additional Study ◦ Lake Dixon
◦ San Dieguito Reservoir
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On-going demonstration and testing through summer 2016
Demonstration Project Goals:
◦ Gain regulatory approval for full-scale project
◦ Gain operations experience with advanced water treatment
Proposed full-scale project would produce 2,000-3,000 acre-feet per year of potable water
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Reclaimed water
pipelines
Free Chlorine
Membrane Filtration
Reverse Osmosis
Ultraviolet Light/Advanced
Oxidation Aquifer
WRF Effluent
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Water Authority Board voted unanimously to file three lawsuits:
◦ June 2010 challenging MWD’s 2011 and 2012 rates
◦ June 2012 challenging MWD’s 2013 and 2014 rates
◦ May 2014 challenging MWD’s 2015 and 2016 rates
2010 and 2012 cases, challenging 2011-2014 rates, tried together in San Francisco Superior Court in a two-phase trial
2014 case has been stayed by the parties pending final outcome of 2010 and 2012 cases
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Trial held December 17-23, 2013 April 24, 2014: Judge Curtis E.A.
Karnow ruled MWD’s 2011-2014 rates violate: ◦ Proposition 26 (2013 and 2014 only) California Constitution Article XIIIC
◦ California’s Wheeling Statutes Water transportation law
◦ Government Code Section 54999.7(a) Limiting rates to cost-of-service
◦ Common Law rules that apply to ratemaking
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Trial March 30, April 1-2, 27-29, 2015
July 15, 2015 tentative decision:
◦ Found that MWD breached its 2003 contract with the Water Authority by charging illegal rates
◦ Rejected MWD’s affirmative defenses of waiver, consent, estoppel
Hon. Curtis E.A. Karnow
◦ Awarded $188.3 million in damages, plus interest, to the Water Authority (years 2011-2014)
Exactly the damages amount sought by Water Authority
Interest will be in the tens of millions of dollars
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Water Authority entitled to recover its attorney’s fees
Entry of final judgment, expected in October, starts the clock on the appellate process ◦ Court of Appeal ruling – 2017 ◦ Supreme Court ruling (if taken) –
2018
Lawsuit challenging 2015 and 2016 rates stayed until appellate process is completed
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* 2015 dollars
San Diego County: 1990 vs. 2015
Potable water use (thousand acre-feet)
Cost of water per acre-foot (full service treated water rate)
Population (millions) Gross Domestic Product (billions)
Jobs (millions)
Potable gallons per capita daily use
2015 numbers estimated as of 8/7/2015
641
507
2.4
3.2
235
143
.97
1.3
$114*
$218
$505*
$1365
1990 2015
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TV
Online & Outdoor
Radio/ Pandora
Social Media
Landscaper Training
Partnerships
Web Site
Large Events: SD County Fair
Civic Events
#droughtbucketlist
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Open to future and emerging leaders
Fall 2015 class in late September
Nominate someone or apply: www.sdcwa.org/citizens-water-academy
Fall 2014 Citizens Water Academy participants on top of Olivenhain Dam