Drought Response and Recycled Water Outlook for 2016 Hossein - - PowerPoint PPT Presentation

Drought Response and Recycled Water Outlook for 2016

February 26th, 2016

Hossein Ashktorab, Ph.D. Recycled and Purified Water Unit Manager

2,000,000 people 15 cities 4,700 direct well

• wners

13 local water providers

Who we serve

3 Water reduction 10%-30% Decrease in local sales losses of $900 million to $10 billion !!!! Economic Impact of Water Shortage

1

• Ongoing/ severe droughts
• Climate change
• Reduced import of water
• Population growth

4

Lake Oroville 2011 Lake Oroville 2014

Risks to Water Supply Reliability

February 2016 Drought Status Report

February 2, 2016

(Released Thursday, Feb. 4, 2016) Valid 7 a.m. EST

http://droughtmonitor.unl.edu/

D2 Severe Drought

The Drought Monitor focuses on broad-scale

• conditions. Local conditions may vary. See

accompanying text summary for forecast statements.

Author: Anthony Artusa NOAA/NWS/NCEP/CPC

D0 Abnormally Dry D1 Moderate Drought D3 Extreme Drought D4 Exceptional Drought

Intensity:

Drought Conditions (Percent Area)

None D0-D4 D1-D4 D2-D4 D3-D4 D4 Current 0.00 100.00 95.26 86.13 63.90 39.41 Last Week

1/26/2016

0.00 100.00 95.35 86.13 63.96 40.21 3 Months Ago

11/3/2015

0.14 99.86 97.33 92.27 70.55 44.84 Start of Calendar Year

12/29/2015

0.00 100.00 97.33 87.55 69.07 44.84 Start of Water Year

9/29/2015

0.14 99.86 97.33 92.36 71.08 46.00 One Year Ago

2/3/2015

0.16 99.84 98.13 93.57 77.46 39.99

U.S. Drought Monitor

California

Drought Response Strategies

SUBT I T L E

2 F

• o

te r

Supply and Ope r ations Wate r Use Re duc tion Dr

• ught

Re sponse Oppor tunitie s Administr ative and F inanc ial Manage me nt

• 1. Se c ure impo rte d

wa te r supplie s

• 4. Re duc e

2015/ 16 wa te r use b y 30%

• 7. Advanc e lo ng -

te rm wa te r c o nse rva tio n

• 12. Se c ure le g isla tive

suppo rt to o ffse t dro ug ht impa c ts, a c c e le ra te pro g ra ms

• 2. Ma na g e surfa c e

wa te r a nd g ro undwa te r supplie s

• 5. Distric t fa c ilitie s

mo de l wa te r c o nse rva tio n

• 8. Ac c e le ra te

re c yc le d wa te r pro g ra m

• 13. L

e ve ra g e E OC to a ssist dro ug ht e ffo rts

• 3. Optimize tre a te d

wa te r q ua lity a nd a va ila b ility

• 6. Minimize

dro ug ht impa c ts to sta ke ho lde rs

• 9. Ma inta in uniq ue ly

a c c e ssib le Distric t a sse ts

• 14. Adjust Distric t

re so urc e a llo c a tio ns

• 10. F

urthe r de ve lo p the Distric t’ s wo rkfo rc e

• 15. Suppo rt the Bo a rd
• 11. Adva nc e

kno wle dg e o f Distric t se rvic e s

Precipitation as of Feb 16, 2016

22.2 31.3 9.1

22.0 (99%) 32.9 (105%) 8.3 (91%)

50 45 40 35 30 25 20 15 10 5

Snow Wate r E quivale nt (SWE ) (Nor the r n Sie r r a) Nor the r n Sie r r a Pr e c ipitation (PPT ) 8- Station Inde x Rainfall in Santa Clar a County (San Jose Station)

Inc he s

No rmal to Da te

Cur r e nt to Date

Recycled Water Can Fill the Gap

• Reusable source
• Locally-controlled source
• Purified through treatment
• Drought-proof
• Replicates natural water cycle

District Recycled and Purified Water Goals

Current Recycled Water Use

20,000 40,000 60,000 80,000 100,000 120,000 San Jose/Santa Clara Regional Wastewater Facility South County Regional Wastewater Authority Sunnyvale Water Pullution Control Plant Palo Alto Regional Water Quality Control Plant 110,000 8,000 19,000 30,000 15,858 2,015 947 3,243

Wastewater Treated vs. Recycled Water

Wastewater Treated (AF) CY 2014 Recycled Water (AF)

Proposed Projects for Purified Water Expansion

Proposed Projects for Purified Water Expansion

De sc r iption Capac ity

(AF Y)

E

• st. Capital

Costs ($M) E

• st. T
• tal O&M

Costs

($M/ Ye ar )

F

• rd Re c ha rg e Po nds I

PR 4,200 $ 70 $ 4.0 Mid-Ba sin I nje c tio n We lls I PR 5,600 $ 140 $ 3.5 L

• s Ga to s Re c ha rg e Po nds I

PR 20,200 $ 260 $ 10.0 We stside I nje c tio n We lls I PR (o r Ce ntra l Pipe line DPR) 5,000 (5,000) $ 120 ($ 65) $ 4.0 ($ 4.5) Sunnyva le I PR 10,000 $ 210 $ 2.0 T

• tal

45,000 $ 800 $ 23.5

DPR Could Be Future Complement to IPR

• Purified water

pumped into raw water line

• Treated at

drinking water treatment plants

How would DPR work?

• Less infrastructure

required:

• Pipelines shorter
• No injection wells
• r ponds
• Capitalizes on

drinking water treatment plant

• zonation/BAF
• Simpler operations

Program Benefits

RO Concentrate Management Options

• Discharge to existing shallow

water Bay outfall with dilution water

• Treatment wetlands, then

discharge to the Bay

• Pre-treatment to produce a

brackish supply for wetlands restoration

• Discharge to a sewer line that

goes to a regional wastewater treatment plant

• Discharge to deep Bay outfall

Silicon Valley Advanced Water Purification Center

• De mo nstra te te c hno lo g y a t

Silic o n Va lle y Adva nc e d Wa te r Purific a tio n Ce nte r

• Co nduc t po ta b le re use studie s
• Co lla b o ra tio n with re c yc le d

wa te r pro duc e rs

• E

ng a g e the pub lic

• Se le c t & b uild pro je c t

Path to Potable Reuse

Silicon Valley Advanced Water Purification Center video

Questions