presentation outline status of water losses within the 8 ...€¦ · 15% water restrictions 12 aug...

2017/08/29

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Presented by: Moloko Raletjena

Presentation Outline

• Status of water losses within the 8 Large Water Supply System- 2016 results

• Challenges with effecting WCWDM progress- Budgets- Planning- Priorities

• Conclusions

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DWS APP PPI 1.4.1. Status Report on water losses within the 8 large water supply

Objectives

• Measure the progress made with theimplementation of WCWDM interventions, withinthe eight large water supply systems (WSS)

• Includes Metros and most of the major cities.

• The key demand centres, have potential to reduceSIV, water losses, NRW and subsequently improveWUE

• Monitoring and reporting are very difficult ifmunicipalities do no calculate and/or submit theirwater balance information

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Key Strategy Documents

National Development Plan – South Africa’s Vision

STRATEGY ANCHORS

� Recognises that reducing growth in water demand is as important as increasing supply and estimates that it will be possible to reduce water demand levels in urban areas to 15% below the 2012 business-as-usual levels.

� Achievement of reductions of this scale will require focussed programmes which will reduce leakage in distribution systems and will yield more efficient use in domestic and commercial applications.

� Proposes a national WCWDM Programme with clear national and local targets for 2017 and 2022, and sub-programmes focussed on municipalities, industry and agriculture

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STRATEGY ANCHORS

National Water Resource Strategy (2)

� Spells out “Implementing water use efficiency, conservation and water demand management” is a non-negotiable principle.

� Resource development and expansion cannot be substantiated unless WC/WDM fully implemented

� The strategy highlights the need to: � reduce water losses and increase water use efficiency;� promote water saving through incentive-based

programmes incl smart technology, rebate - water savings;� fast-track the implementation of WCWDM in consideration

of the elevated status in the National Gov’s Plan of Action (Outcome 10) = set a target of 15% in 2014 for reduction of water losses in distribution systems.� Note: Reconciliation Strategies = context- and water

supply system specific targets.

� Provides for public-private initiatives to tackle shared objectives, such as water losses and water scarcity as a shared concern.

8 Large water supply system

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Integrated Vaal River water supply system

34.0% 35.7% 35.9%38.3%

34.9% 34.5% 36.6% 36.2% 36.1% 35.7% 35.5%31.2%

24.6%

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

-

200 000 000

400 000 000

600 000 000

800 000 000

1 000 000 000

1 200 000 000

1 400 000 000

1 600 000 000

1 800 000 000

Jun-08 Jun-09 Jun-10 Jun-11 Jun-12 Jun-13 Jun-14 Jun-15 Dec-15 Jun-16 Dec-16 Jun-17 Jun-22

% N

on-r

even

ue W

ater

Sys

tem

Inpu

t Vol

ume

(m³/

annu

m)

Billed metered Billed unmetered Non-Revenue water

Projected SIV without WDM Projected SIV with WDM % Non-revenue water

15% Water restrictions 12 Aug 2016 to 13 March 2017

2.9 % V/S 11..0% Savings

• Municipalities in the IVRS managed to reduce their annualdemand by 39 M m³/a from June 2016 to Dec 2016

• Mainly through water restrictions• The reduction in the demand is positive, considering the

municipalities in the IVRS exceeded the high populationwithout WCWDM projections by 0.8 %

• It is considered highly unlikely that municipalitiesin the IVRS will be able to reduce theirconsumption by 9% to achieve their 2017 target

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Western Cape water supply system

19.9%22.5% 23.7%

18.8% 19.3% 19.2% 20.2% 21.4%25.0%

21.1%18.8% 18.0% 16.0%

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

-

100 000 000

200 000 000

300 000 000

400 000 000

500 000 000

600 000 000

700 000 000


% N

on-r

even

ue W

ater

Sys

tem

Inpu

t Vol

ume

(m³/

annu

m)

Billed metered Billed unmetered Non-Revenue water Projected SIV without WDM

Projected SIV with WDM 20 & 30% Restrictions target % Non-revenue water

24% V/S 12.7 % Savings20% Water restrictions 1 Jan 2015

30% Water restrictions 1 Nov 2016

• Municipalities included in the Western Cape water su pply system (WCWSS) have reduced the demand aggressively through WDM measures

• Achieved savings of 24.6% against their target of 12.7% by December 2016.

• Swartland, Drakenstein and Stellenbosch should endeavour to sustain their water losses to below 15 % (Best Practices).

• It will be a significant challenge to reduce furthe r since we are now operating at or close to the economic level s of leakage.

• While municipalities in the WCWSS have done well to achieve their targets, water restrictions could not be avoided which highlights the severity of the drough t

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Crocodile (West) WSS

40.8%

76.9%

53.9%

22.8% 23.2% 21.4% 20.7%

40.2% 41.0%43.9%

46.4%41.3%

33.8%

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

-

10 000 000

20 000 000

30 000 000

40 000 000

50 000 000

60 000 000

70 000 000

80 000 000

90 000 000


% N

on-r

even

ue W

ater

Sys

tem

Inpu

t Vol

ume

(m³/

annu

m)



No water restrictions

8.2 V/S 11.5 % Savings

KZN Coastal Metro water supply system

40.6%43.0% 42.5%

35.4%37.7% 39.8%

42.6% 41.8% 41.8% 42.3%38.2%

30.0%25.0%

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

-

100 000 000

200 000 000

300 000 000

400 000 000

500 000 000

600 000 000


% N

on-r

even

ue W

ater

Sys

tem

Inpu

t Vol

ume

(m³/

annu

m)



15% Water restrictions for all KZN municipalities 1 Mar 2016

9.2 % V/S 9.0 % Savings

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Algoa water supply system

34.4% 35.4% 36.3%40.5%

37.0%41.5% 42.3%

44.7% 45.9% 46.2%43.4%

33.2%

25.6%

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

-

20 000 000

40 000 000

60 000 000

80 000 000

100 000 000

120 000 000

140 000 000

160 000 000

180 000 000


% N

on-r

even

ue W

ater

Sys

tem

Inpu

t Vol

ume

(m³/

annu

m)


Projected SIV with WDM 15% Restrictions % Non-revenue water

13.5% V/S 27.2 % Savings

Amatole water supply system

41.1%44.9%

40.0%

45.4% 47.3% 45.7%

39.5%

34.4% 34.4%

46.5%49.3%

28.4%

21.9%

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

-

10 000 000

20 000 000

30 000 000

40 000 000

50 000 000

60 000 000

70 000 000

80 000 000


% N

on-r

even

ue W

ater

Sys

tem

Inpu

t Vol

ume

(m³/

annu

m)



1.5 % V/S 8.1 % Savings

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Greater Bloemfontein water supply system

51.1% 52.2% 50.3%

31.0%

43.1%

49.9%46.6%

40.0% 40.0% 40.9%

35.1% 34.5%

25.9%

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

-

20 000 000

40 000 000

60 000 000

80 000 000

100 000 000

120 000 000


% N

on-r

even

ue W

ater

Sys

tem

Inpu

t Vol

ume

(m³/

annu

m)


Projected SIV with WDM Restrictions target % Non-revenue water

30.6 % V/S 10.8 % Savings

Olifants water supply system

59.5%55.4%

52.8%57.2%

52.4%

35.3%38.3%

45.1% 45.2% 45.6% 46.2%41.3% 42.2%

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

-

50 000 000

100 000 000

150 000 000

200 000 000

250 000 000


% N

on-r

even

ue W

ater

Sys

tem

Inpu

t Vol

ume

(m³/

annu

m)



2.5 % V/S 6.4 % targeted savings

Est

ima

ted

Est

ima

ted

Est

ima

ted

Est

ima

ted

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Summary of targeted vs actual savings

SystemProjected SIV without WDM(X) kl/annum

Projected SIV with WDM

(Z) kl/annum

Projected % savings

(X – Z) / X * 100

Actual demand

(Y)kl/annum

Actual % savings

(X - Y) / X * 100

IVRS 1 414 954 845 1 259 521 968 11.0% 1 374 064 291 2.9%

CWRWSS 81 896 986 72 505 548 11.5% 75 149 020 8.2%

KZNCMWSS 440 429 750 400 929 750 9.0% 399 750 304 9.2%

WCWSS 481 866 055 420 515 925 12.7% 363 416 316 24.6%

AWSS 131 372 286 95 678 395 27.2% 113 623 290 13.5%

AmWSS 66 893 713 61 493 713 7.2% 74 797 137 -0.6%

GBWSS 94 743 067 84 663 067 10.6% 65 780 175 30.6%

ORWSS 204 882 982 191 858 953 5.7% 199 681 021 1.1%

Total 2 917 039 684 2 587 167 319 11.3% 2 666 261 554 8.6%

Total targeted vs actual savings

Year ending

Projected SIV without WDM(X) kl/annum

Projected SIV with WDM

(Z) kl/annum

Projected % savings

(X – Z) / X * 100

Actual demand

(Y)kl/annum

Actual % savings

(X - Y) / X * 100

Jun-12 2 642 893 490 2 552 055 507 3.4% 2 493 478 837 5.7%

Jun-13 2 696 250 917 2 536 625 444 5.9% 2 450 960 227 9.1%

Jun-14 2 761 965 357 2 541 814 654 8.0% 2 465 754 174 10.7%

Jun-15 2 823 381 311 2 560 616 446 9.3% 2 764 067 385 2.1%

Dec-15 2 854 587 175 2 569 453 143 10.0% 2 797 835 573 2.0%

Jun-16 2 885 793 039 2 578 289 841 10.7% 2 743 414 339 5.0%

Dec-16 2 917 039 684 2 587 167 319 11.3% 2 666 261 554 8.6%

Jun-17 2 943 605 715 2 598 047 923 11.7%

Jun-22 3 256 430 815 2 835 667 445 12.9%

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General challenges

Budget expenditure as at 31 Mar 2017

• Municipalities spent 61.3%, or R245.1 billion, of t heir total adjusted budgets of R400.2 billion. Unlikely to spend balance of R155.1 billion (up from R141.4 billion in March 2016)

• Municipalities spent 47.1%, or R33.1 billion, of th eir total adjusted capital budget (R70.3 billion) as at 31 March 2017. Unlikely to spend balance of R 37.2 billion (up from R 35.6 billion) . Significant under performance.

• Metro water revenue billed was R18.8 billion agains t expenditure of R17.3 billion

• Municipal salaries and wages expenditure represents 27% or R92.4 billion of their total operational expenditure budget of R329.9 billion

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Budget expenditure…

• Aggregated municipal consumer debt was R128.3 billion. Governments owe 5.1% or R6.6 billion and households 67.1% or R86.0 billion (up from R 66.9 billion)

• Realistically collectable amount (less than 90 days) is R24.1 billion (up from R22.9 billion)

• Municipalities owed their creditors R34 billion (up from R26.3 billion)

• Overall expenditure of conditional grants was 57.6% or R17.3 billion against the R29.8 billion transferred

Equitable Share (FBW) Allocation per Province

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Metering and billing challengesEnvironment Urban Rural

Supply area Formal – high LOS, house connections, continuous supply

Informal – low LOS, yard connections,standpipes, intermittent supply

Connections Metered Un/metered, informal

Meter reading Monthly – manageable distances, continuous supply = accurate readings

Monthly – long distances, intermittent supply = inaccurate readings

Bylaws Enforceable Difficult to enforce

Tariffs Usually considered affordable = cost effective

Unusually considered unaffordable = not cost effective

Billing Easy to communicate & pay – post, e-mail, sms. Billing system easier to sustain

Difficult to communicate & pay – no post, e-mail. Billing system difficult to sustain

Demand control Pays for service = Consumer awareness Limited / no payment = Consumer apathy

Technology Usually not restricted by costs,communications, skills,

Restricted by costs, communications, skills,

Funding Programmes…..

• Budgets allocated towards new infrastructure projects through ACIP, MWIG,MIG etc,

• Management of these funds are fragmented with emphasis on new Infrastructure

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Lack of skilledpersonnel andcapacity

Appoint and train suitablepersonnel on WC/WDM

Current standard per municipalcategory?

Standard: # Population requires:civil engineers /proftechnologists, technicians,artisans = total technical team =1 civil professional / ?? kmpipeline

Skilled personnelon WC/WDM

SALGA, COGTA,DWS andMunicipalities

None institutionalprioritization ofWC/WDM

Strategic prioritization ofWC/WDM in the Municipalities

WC/WDM regardedas strategic priorityin theMunicipalities, inclin BP, PA, 2017-KPIs for MM

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Target water balance and possible savings

Potential savings from

various interventions

Sys

tem

Inp

ut V

olum

e

Aut

hori

sed

con

sum

ptio

n Billed authorised consumption

Community awareness

Unbilled authorised consumption

Bylaws and enforcement

Potential savings from increased water use efficiency

Implemented through

Retrofit and removal of wasteful devices

Tariff setting

W

ate

r los

ses

Unavoidable annual commercial losses

Meter accuracy and

assumption errors

Economic level of commercial losses reduction

Implemented through the

improvement of

Data transfer errors

Potential savings from a reduction in commercial losses

Data analysis and assumption errors

Theft and unauthorised consumption

Unavoidable annual real losses

Pressure

reduction

Economic level of physical losses reduction

Active and passive leakage control

Potential savings from reduction in physical losses

Implemented through

Mains replacement

Speed and quality of repairs

Alig

nmen

t of

the

IWA

wat

er

bala

nce

and

inte

rven

tions

• The target v/s actual savings for 8 systems combine d indicates a 8.6 % savings achieved by Dec 2016

• 3.6 % improvement in savings from June 2016 to Dec 2016, which is encouraging

• Savings supported by water restrictions. Sustainab ility is a concern.

• WCWSS, KZNWSS and GBWSS have exceeded their targets • Remaining systems are following the high population

without WCWDM demand projections, inc IVRS

• Almost all Municipalities in the IVRS are cat A, B1 and B2, they should be able to prioritize and implement WCWD M

• WCWDM requires and integrated approach for sustainability

Conclusions

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Thank YOU