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Peter Silva, PE
Silva Silva International Foro Ciudadano de la CILA, Mexicali, B.C. Noviembre de 2016
– 26 Agencias de Agua (Members Agencies)
– 19 millones de personas (million people)
– Economía Regional 1 Trillon de USD (Regional economy of 1 trillion dollars)
– Cumple con aproximadamente la mitad de las demandas (Meets about half of retail demands)
Los Angeles River Irrigation Ditch, 1895
Los Angeles Aqueduct
William
Mulholland Hetch Hetchy System
Hetch Hetchy Reservoir
Groundwater and Other Local Supplies
Metropolitan Service Area
Los Angeles Department of Water & Power
Los Angeles Aqueduct
1913
San Francisco Public Utilities Commission
Hetch Hetchy System
1913 - Raker Act
East Bay Municipal Utility District
Mokelumne River Aqueduct
1929
US Bureau of
Reclamation All-American Canal System 1940 – All-American Canal
1948 – Coachella Canal
Metropolitan Water District of Southern California
Colorado River Aqueduct
1941
US Bureau of
Reclamation
Central Valley Project
1940 - 1st water delivered
(Contra Costa Canal)
CA Department of
Water Resources
State Water Project
1960 - Burns Porter Act
1973 - 1st water to So.Cal.
Mokelumne River
Aqueduct
Pardee Reservoir
Mokelumne River
Aqueduct
All-American Canal System
All-American Canal
Colorado River
Aqueduct
Shasta Dam
CVP
SWP
Oroville Dam
California Aqueduct
LAKE
SHASTA
LAKE
OROVILLE
Bay-Delta
STATE WATER
PROJECT
(2.0 MAF)
LOS ANGELES
AQUEDUCTS
(0.5 MAF)
COLORADO RIVER
AQUEDUCT
(1.25 MAF)
METROPOLITAN WATER
DISTRICT SERVICE AREA
LOCAL
2.0 MAF
2012- 2013 Abajo del promedio de escurrimiento (Below average runoff)
2013 El mas seco en registros (Driest on record)
January 2014 Mas baja capa de nieve (Lowest snowpack)
2014 Temperatures Registro de mas altas temperaturas (Record high temperatures)
SWP Allocation 20%
28% Extreme
40% Exceptional
27% Severe
US Drought Monitor As of March 10, 2015
0
5
10
15
20
25
30
35
oct nov dic ene feb mar abr may jun jul ago sep
Wat
er
Co
nte
nt
(in
)
Northern Sierra Snowpack
Normal
Current Water Year
Previous Water Year
On April 1
1.4 in 0 in
April 1, 2010 Normal Snowpack
April 1, 2015 5% of Normal Snowpack
Northern Sierra
0
25
50
75
100
125
150
175
'05 '06 '07 '08 '09 '10 '11 '12 '13 '14 '15
%
Average
Ultimos 10 Años 7 Años mas bajos
‘07 ‘13 ‘90 ‘88 ‘77 ‘14 ‘15
0.00
4.00
8.00
12.00
16.00
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Pre
cip
itat
ion
(in
.)
Actual Normal
Water Year
Runoff
Projection
49%
92%
16%
91%
69%
189%
3%
61%
79%
55%
375% 33%
46%
0
5
10
15
20
25
30
35
Ru
no
ff (
MA
F)
Actual Normal Forecast
18.26 MAF
Below Average Runoff 8 out of last 10 years
0.0
3.0
6.0
9.0
12.0
15.0
18.0
OCT NOV DIC ENE FEB MAR ABR MAY JUN JUL AGO SEP
Wat
er
Co
nte
nt
(in
)
Of April 1
Normal
Actual Año Hidrológico
Anterior Año Hidrológico
11.89 in
0.00
1.00
2.00
3.00
4.00
5.00
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Pre
cip
itat
ion
(in
.)
Actual Normal
66% 64%
47%
115% 107%
51%
63%
94%
Proyección
anual de
escurrimiento
2015
224%
105%
138%
80%
25%
0
2
4
6
8
10
12
14
16
18
Ru
no
ff (
MA
F)
Actual Normal Forecast
Sequía Histórica de 15 años (Historic 15-year Drought)
10.88 MAF
Agosto de 2011
Agosto de 2014
Agosto de 2011
Agosto de 2014
Agosto de 2015
Drought Headlines
21
GOVERNOR BROWN DECLARES DROUGHT STATE OF EMERGENCY
17/1/14: Gobernador Brown declaró Estado de Emergencia (Governor Brown declares State of Emergency)
25/4/14: Gobernador Brown declaró continuar con el Estado de Emergencia (Governor declares Continued State of Emergency)
15/7/14: State Water Board – Normas de Conservacion de Emergencia (Emergency Conservation Regs).
17/3/14: State Water Board – Amplió las Normas de Conservación de Emergencia (expands Emerg. Conservation Regs).
1/4/15: Governor Executive Order- Restricciones Obligatorias (Mandatory Restrictions).
13/4/15: MWD Board – Aplica reducciones de Etapa 3 a las asignaciones (sets Stage 3 Allocation Cutbacks)
2/2/16: Extensión de las normas de emergencia – (Extended revised emergency regulations)
18/5/16: State Board – Adopcion de la “prueba de stress” para las agencias – (adoption of “stress test” for agencies).
Managing Future Uncertainties
Water Quality
Energy Capital Financing
Endangered Species
Climate Change
23
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