Working with the business sector

to build water resilience

October 2017

High level strategy way forward

• Bring online up to 500Ml/day of new non-surface water

• Provide tools and messaging to assist citizens and sectors to reduce water use

• Prepare contingency measures for worst case scenrio

City of Cape Town

• Doing everything possible to reduce water consumption collectively to 500Ml/day

• Advocate for visitors to our city and fellow citizens / sectors to join the saving efforts

• Prepare contingency measures for worst case scenario

Citizens and Sectors

State of rainfall and dam levels

City of Cape Town: Water Dashboard (Updated 16 October 2017)

Current Seasons Rainfall – CPT Airport ( 13 Oct 2017)

City of Cape Town: Water Dashboard – 4 Year Historic Dam Levels

15 October 2016: 61,8%

15 October 2015: 73,4%

15 October 2017: 37,4%

City of Cape Town: Water Dashboard – 4 Year Historic Water Consumption

Scenarios

Scenarios developed end of May

Grind it Out

• The drought is temporary in nature, and will break. There will inevitably be some amount of rain in the winter of 2017.

Ramp it Up

• The 2017 winter rainfall will be substantially lower than the historical record. The drought continues for at least one more year.

The New Normal

• Previous climate models cannot be relied upon. We are experiencing the harsh impacts of climate change. Over reliance on surface water is a risk.

What the City is doing?

Bring online up to 500Ml of non-surface water

Portfolio Programmes

Business Support Programmes

Portfolio Breakdown

Water Resilience Portfolio

Disaster Management Programme

Emergency Programme

Tactical Programme

Strategic Programme

Financial Strategy

Programme

Technical Strategy

Programme

Communication Strategy

Programme

Household and Business Adaptation Programme

Integration

Tranches activated and focus preparation on these typologies

RFP issued to obtain additional information towards detail design

Emergency Programme Breakdown

Immediate Tranche

92 Ml

Temporary Desalination (32)

Permanent Desalination (50) CT Harbour

Water Reclamation (10)

1st Tranche

110 Ml

Desalination

Barge Harbor (50)

Ground Water (50)

Water Reclamation (10)

2nd Tranche

102 Ml

Desalination (22)

Ground Water (40)

Water Reclamation (40)

Extreme Tranche

200 Ml

Desalination Gordons Bay Ship/Barge (150)

Desalination

Cape Town Harbour Ship (50)

Emergency Programme Breakdown

First 202Ml

Site Design Criteria and Prioritization

Max Volumes in Min Time Frame within Constraints

Site and Environmental

Constraints

Volume

Time

• What Volumes – Existing Network capacity

• Quick Wins – Temp vs Permanent opportunities

• Site Constraints – City owned land, Injection point, Electricity availability, discharge points, intake points, sea depths, water quality, location to marine areas, land use rights and zoning, wave heights, wayleaves, Pipe routes (above ground), Large vehicle access

• Environmental impacts – Coastal protection Area

Emergency Project description: Technical project list

Tranche Solution Type Sites Supply (Ml)Solution

Total (Ml)

Tranche

Total (Ml)Total (Ml)

Desalination Hout Bay 4

Desalination Granger Bay 8

Desalination Red Hill/Dido Valley 2

Desalination Strandfontein 4

Desalination Monwabisi 4

Desalination Harmony Park 10

Desalination Cape Town Harbour 50

Water Reclamation Zandvliet WWTW 10 10

Desalination Cape Town Harbour (Barge) 50 50

Ground Water Atlantis & Silverstroom Acquifers 25

Ground Water Cape Flats Aquifer 25

Water Reclamation Fisantekraal WWTW 10 10

Desalination Universal Sites x 3 20

Desalination Maidens Cove 2

Ground Water Cape Peninsula Aquifer 20

Ground Water Hottentots-Holland Aquifer 20

Water Reclamation Potsdam WWTW 10

Water Reclamation Cape Flats WWTW 10

Water Reclamation Bellville WWTW 10

Water Reclamation Macassar WWTW 10

Desalination Gordons Bay Ship/Barge 150

Desalination Cape Town Harbour (Ship) 50

Tranche 2

22

40

40

102

Extreme200 200

Immediate 9282

Tranche 1 50 110

504

What citizens and sectors are doing?

Reducing collective consumption to 500Ml/day

Consumption by use category

Restrictions and drought related measures

17

Progressively increased restrictions

Level Date Restriction Target

Level 1 2005 • No irrigation 10:00-16:00

• Spray nozzles for hosepipes

• No hosing down hard surfaces

• No dampening of building sand

10% savings

Level 2 2016 Jan 01 • Irrigation for 1 hour on Tue, Wed,

Thur

• No irrigation 9:00-16:00

20% savings

Level 3 2016 Nov 01 • Buckets only

• Pool covers

30% savings

Level 3B 2017 Feb 01 • No private car washing 30% savings

Level 4 2017 June 01 • No irrigation

• No topping up of private pools

100 litres/person/day

Level 4B 2017 July 01 • No topping up of public pools 87 litres/person/day

Level 5 2017 Sept 03 Fines:

• Residential > 20kl/m

• Commercial: 20% less than same

month previous year

87 litres/person/day

LEVEL 5 WATER RESTRICTIONS

CONSUMPTION PER PERSON 87 litres or less per person per day wherever you are: home, work, school, etc.

LIMIT FOR INDIVIDUAL RESIDENTIAL

UNITS Residential units exceeding 20 kilolitres per month will be fined

COMMERCIAL PROPERTIES Reduce consumption by 20% compared to previous year. Properties exceeding this will be fined.

IRRIGATION WITH MUNICIPAL

DRINKING WATER Prohibited

IRRIGATION WITH BOREHOLE /

WELLPOINT WATER Restricted

BATHROOM Flushing toilets with non-drinking water (e.g. greywater / rainwater) encouraged

WATER FEATURES Use of municipal drinking water prohibited

SWIMMING POOLS (public and

private)

Top-up, filling or refilling with drinking water prohibited

Use of portable play pools prohibited

WASHING VEHICLES (privately or

at a formal/informal car wash) Prohibited with municipal drinking water

FACILITIES

Operation of spray parks prohibited

No new landscaping or sports fields may be established, except if irrigated only with non-

drinking water

INDIGENT WATER ALLOCATION Still applies

Changes of Consumption During Drought

80

100

120

140

160

180

200

220

240

260

280

300

Jun-0

6

De

c-0

6

Jun-0

7

De

c-0

7

Jun-0

8

De

c-0

8

Jun-0

9

De

c-0

9

Jun-1

0

De

c-1

0

Jun-1

1

De

c-1

1

Jun-1

2

De

c-1

2

Jun-1

3

De

c-1

3

Jun-1

4

De

c-1

4

Jun-1

5

De

c-1

5

Jun-1

6

De

c-1

6

Jun-1

7

De

c-1

7

Jun-1

8

Lit

res p

er

day

CCT Per Capita Daily Water Use

12 Month rolling Actual monthly SDBIP target (215)

More and more sectors using treated effluent

• More than 200 users have permanent connections

• More than 70 Industries are collecting treated effluent

at WWTW and standpipe points

• Mostly used for irrigation and industrial purposes

– Golf courses

– City Parks

– Schools

– Farmers

– Industries etc.

– City Departments

20

Treated Effluent Re-use

21

3.0%

4.0%

5.0%

6.0%

7.0%

8.0%

9.0%

Jun-1

2

Sep-1

2

De

c-1

2

Ma

r-1

3

Jun-1

3

Sep-1

3

De

c-1

3

Ma

r-1

4

Jun-1

4

Sep-1

4

De

c-1

4

Ma

r-1

5

Jun-1

5

Sep-1

5

De

c-1

5

Ma

r-1

6

Jun-1

6

Sep-1

6

De

c-1

6

Ma

r-1

7

Jun-1

7

Sep-1

7

De

c-1

7

Ma

r-1

8

Jun-1

8

Perc

en

tag

e

% Treated Effluent Reused

% Reused

What the City is doing to further enable decreased

consumption?

• Education and awareness

• Pipe replacement

• Pressure management

• Active leakage control (Leak Detection)

• District metering (and zoning)

• Leak response time and repair quality

• Leak repair (indigent households)

• Water management devices

• Treated effluent re-use

• Water meter management

WATER CONSERVATION & DEMAND MANAGEMENT

0.0

1.0

2.0

3.0

4.0

5.0

6.0

0

100

200

300

400

500

600

700

1950 1960 1970 1980 1990 2000 2010 2020

Po

pu

lati

on

(m

illio

ns)

Wat

er T

reat

ed p

er y

ear

(mill

ion

m3)

Water Treated 4.0% growth Population Expon. (Population)

Introduction of WCWDM Programme

water demand growth delinked from population growth

Current water demand lower than 20 years ago – population increased by 1 mill

EFFECTIVENESS OF WCDM – 2000 TO PRESENT

Education and Awareness Campaigns

- Schools Intervention

25

26

Khayelitsha pressure management

project (2001)

Estimated

savings:

9 Mm3/a

• More than 116 Pressure

management zones have been

created

• These zones are being optimised

this current drought

• They spread throughout the City

Mitchells Plain pressure management

project (2008) Estimated

savings:

2.4 Mm3/a

PRESSURE MANAGEMENT

• Findings

Vandalized hydrants and

dumping in chambers Leak Detection in progress

ACTIVE DETECTION & REPAIRS

0

10

20

30

40

50

60

70

80

0

100

200

300

400

500

600

700

800

900

Jul-

06

Nov-0

6

Ma

r-0

7

Jul-

07

Nov-0

7

Ma

r-0

8

Jul-

08

Nov-0

8

Ma

r-0

9

Jul-

09

Nov-0

9

Ma

r-1

0

Jul-

10

Nov-1

0

Ma

r-1

1

Jul-

11

Nov-1

1

Ma

r-1

2

Jul-

12

Nov-1

2

Ma

r-1

3

Jul-

13

Nov-1

3

Ma

r-1

4

Jul-

14

Nov-1

4

Ma

r-1

5

Jul-

15

Nov-1

5

Ma

r-1

6

Jul-

16

Nov-1

6

Ma

r-1

7

Jul-

17

Nov-1

7

Burs

ts /

100

km

/ y

ear

Num

ber

of

Burs

ts p

er

Month

s

BURST WATER MAINS

Burst per month Bursts/100km

PIPE BURST STATISTICS

29

• 26 000 installed in 2016/17 • Over 5000 installed in high water user properties in last 6

weeks

WATER MANAGEMENT DEVICES

30

Over 400 fines issued (February – August) Most common contraventions:

Washing of vehicle Wasting of water Hosing down of paved surfaces Dampening of building materials

ENFORCEMENT

Critical Water Shortages Disaster Plan

ENSURING THE CITY IS ADEQUATELY PREPARED

PHASES

PHASE 1: PRESERVATION RESTRICTIONS

PHASE 2: DISASTER RESTRICTIONS

PHASE 3: FULL-SCALE DISASTER

IMPLEMENTATION

Resources to drive awareness

RESOURCES

Resources available for download from City’s website. http://cct.gov.za/0byva Posters include: • How Far Can 87 Litres a Day Go? • Find and Fix Leaks (Eng, Afr, Xho)

• Top Ways to Save Water Indoors (Eng, Afr, Xho)

• Level 5 Overview (Eng, Afr, Xho)

• Level 5 Guidelines (Complete) • Water Crisis Warning red poster Other; • Offline Water Use Calculator – zipped

As material is made available the resource packs will be updated.

http://bit . ly/ThinkWaterCalculatorCT

Calculate your daily water usage

ANNUAL MAJOR DAM LEVELS All figures are for 25 September for each year

What does 87 l per day mean to you?

=

Useful pages / contacts on www.capetown.gov.za

Apply for supply of treated effluent

http://cct.gov.za/iNPx2

Commercial water restrictions

explained

http://cct.gov.za/OtU1g

Apply to sink a borehole or wellpoint

or use an alternative source of water

http://cct.gov.za/CBzOc

Register a borehole or wellpoint http://cct.gov.za/juF60

Water and sanitation education

resources

http://cct.gov.za/QpD2V

Report contraventions of water restrictions: water@capetown.gov.za or SMS 31373

Summer season drought campaign

• The “Save like a local” campaign will commence end of October

• Messaging is intended to be inspirational

• Various forms of delivery now being finalised

– Airport billboards in multiple languages

– Inflight announcements

– Signage at toll gates

– Mobile billboards for destinations with high tourist traffic

– Branded flags

• Online toolkit developed for all of us to drive drought messaging –

SAVE LIKE A LOCAL

Way Forward

• Continue to seek efficiencies in water use wherever possible to drive down

demand.

• Promote and seek feasible opportunities to use alternative water

• Engage with your staff and customers on ways to reduce water. Grow the

collective communication effort

• Construct your own contingency plans for worst case scenarios

• Become a water ambassador and showcase your successes.

WAY FORWARD

Thank You