City of Cape Town: Water Dashboard

16 October 2017

CAPACITY % % % % % %

Ml 16 October 2017 Previous week 2016 2015 2014 2013

BERG RIVER 130 010 66.6 66.6 73.3 89.5 99.3 100.2

STEENBRAS LOWER 33 517 44.2 44.9 64.1 86.4 92.2 97.4

STEENBRAS UPPER 31 767 100.1 100.0 92.0 96.2 101.3 100.8

THEEWATERSKLOOF 480 188 27.5 28.3 52.5 76.4 100.0 101.1

VOËLVLEI 164 095 26.6 26.7 71.8 46.5 99.5 99.8

WEMMERSHOEK 58 644 46.3 45.7 66.2 69.1 94.9 98.9

TOTAL STORED 898 221 336 169 339 710 554 669 659 722 891 268 902 087

% STORAGE 37.4 37.8 61.8 73.4 99.2 100.4

CAPACITY % % % % % %

Ml 16 October 2017 Previous week 2016 2015 2014 2013

ALEXANDRA (Table Mountain) 126 69.4 73.2 41.1 36.9 72.8 89.2

DE VILLIERS (Table Mountain) 243 94.8 94.8 87.7 88.8 81.0 100.0

HELY-HUTCHINSON (Table Mountain) 925 100.7 100.7 99.7 100.2 82.5 100.0

KLEINPLAATS (Simon's Town) 1 368 66.0 66.8 90.4 85.8 91.5 102.5

LAND-EN-ZEEZICHT (Helderberg) 451 100.0 98.3 69.4 52.9

LEWIS GAY (Simon's Town) 182 98.7 94.1 94.5 99.0 64.0 100.9

VICTORIA (Table Mountain) 128 100.4 100.4 100.0 101.2 98.9 100.4

WOODHEAD (Table Mountain) 954 90.5 88.7 99.9 59.8 62.6 71.9

Capacity of the major dams of the Western Cape Water Supply System is 99.6% and that of the minor dams 0.4% of the combined capacity of the major

and minor dams. Kindly note that all the Major Dams show gross capacity.

Minor dam levels in Cape Town

MINOR DAMS

STORAGE

All figures are for 16 October for each year except for those in the second column, which gives the figures for the previous week of this year.

NOTE: the last 10% of a dam's water is difficult to use, the useable water in the dam is approximately 10% less than

the dam level.

Major dam levels in Cape Town

MAJOR DAMS

STORAGE

0

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16 October 2017Previous week2016201520142013

Dam Levels for 16 October 2013-2017

BERG RIVER STEENBRAS LOWER STEENBRAS UPPER THEEWATERSKLOOF VOËLVLEI WEMMERSHOEK

DAM STORAGE (%)

WEEKLY DAM LEVEL CHANGE (%)

increase since last week

AVERAGE DAILY PRODUCTION (Ml/d)

(Target 500Ml/d)

37.4 -0.4 600

Notes:

Aug-17 99.59 98

This table shows CCT drinking water quality compliance according to the South African National Standard 241:2015. Compliance, measured against all prescribed

chemical and microbiological components, consistently exceeds the very high CCT target of 98%. (Overall compliance percentages of continuous sampling and

analysis are released on a monthly basis. The latest available is for August.)

Jun-17 99.65 98

Jul-17 99.62 98

Apr-17 99.67 98

May-17 99.71 98

Feb-17 99.64 98

Mar-17 99.67 98

Dec-16 99.65 98

Jan-17 99.63 98

Oct-16 99.62 98

Nov-16 99.59 98

Water Quality Sample Pass Rate

Month Water Quality Compliance (%) Target (%)

Sep-16 99.61 98

City of Cape Town Dams: Graph indicating % of water stored

Daily Average Water Production (7 Day Avg)

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Pro

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Average Production (Ml/day) Target

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% S

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Date

TOTAL STORED - BIG 6

Rainfall

Total* LT Average

Blackheath Upper 0.0 0.0 0.0 0.0 0.0 0.0 16.0 18.8 31.9

Brooklands 0.0 0.0 1.5 0.0 0.0 9.0 0.5 24.3 46.6

Newlands 0.0 0.0 0.3 0.0 0.0 2.0 17.5 41.8 95.4

Steenbras 0.0 0.0 1.6 0.0 0.0 0.0 4.0 16.9 64.0

Table Mountain (Woodhead) 0.0 0.0 0.0 0.0 0.0 24.0 49.4 107.6

Theewaterskloof 0.0 0.0 1.0 0.0 0.0 0.0 0.0 5.0 42.9

Tygerberg 0.0 0.0 0.0 0.0 0.0 0.5 4.5 8.7 30.1

Voëlvlei 0.0 0.0 0.0 0.0 0.0 0.3 4.4 9.7 27.7

Wemmershoek 0.0 0.0 0.0 0.0 0.0 0.5 14.5 35.0 46.6

Wynberg 0.0 0.0 0.5 0.0 0.0 1.5 15.0 44.8 65.9

RAINFALL (mm)Oct

Notes: *Total/cumulative rainfall for month indicated above

LT: Long Term

09-Oct 10-Oct 11-Oct 12-Oct 13-Oct 14-Oct 15-Oct