INDEX
WATER SERVICES DEVELOPMENT PLAN: MODULE 2
INDEX
DESCRIPTION
PAGE
NO:
LIST OF TABLES………………………………………………………………………………..
ii
LIST OF FIGURES………………………………………………………………………………
vi
1.
ADMINISTRATION………………………………………………………………………………
2.1
2.
DEMOGRAPHICS…………………………………………………………………………….…
2.16
3.
SERVICE LEVELS………………………………………………………………………………
2.38
4.
SOCIO-ECONOMICS…………………………………………………………………………...
2.49
5.
WASTEWATER SERVICE INFRASTRUCTURE…………………………………………….
2.56
6.
OPERATION AND MAINTENANCE…………………………………………………………...
2.94
7.
ASSOCIATED SERVICES……………………………………………………………………...
2.107
8.
CONSERVATION AND DEMAND MANAGEMENT…………………………………………
2.135
9.
WATER RESOURCES………………………………………………………………………….
2.148
10.
FINANCIAL PROFILE…………………………………………………………………………...
2.168
11.
WATER SERVICES INSTITUTIONAL ARRANGEMENTS…………………………………
2.189
12.
SOCIAL AND CUSTOMER SERVICES REQUIREMENTS………………………………...
2.202
13.
NEEDS AND DEVELOPMENT PLAN (LIST OF PROJECTS)………………………..……
2.214
i
LIST OF TABLES
DESCRIPTION:
PAGE
NO:
TOPIC 2: DEMOGRAPHICS
Table 1: Estimated households living in dwelling types for 2010 till 2019 (SDI and GIS, 2011).
2.30
Table 2: Informal Dwelling per District (informal settlements)……………………………………..
2.31
TOPIC 3: SERVICE LEVELS
Table 1: Service Level Profile (as at January 2012)……………………………………………......
2.40
Table 2: Residential consumer units (Formal & Informal)……………………………………...…..
2.41
Table 3: Service Level Categories for Informal Settlements……………………………………….
2.41
Table 4: Water: Profile of consumers………………………………………………………………...
2.42
Table 5: Profile of sanitation services to consumers (formal and informal)………………………
2.43
Table 6: Proposed backlog eradication programme………………………………………………..
2.48
TOPIC 4: SOCIO-ECONOMIC
Table 1: Western Cape Macroeconomic Outlook…………………………………………………...
2.52
Table 2: Employment Profile of Cape Town…………………………………………………………
2.53
Table 3: Formal Household dwellings based on income level…………………………………….
2.54
Table 4: Unemployment levels vs. Employment…………………………………………………….
2.55
TOPIC 5: WATER SERVICE INFRASTRUCTURE
Table 1: Summary of Existing Water Supply and Wastewater Infrastructure……………………
2.57
Table 2: Number of boreholes and abstraction potential for Witzands and Silwerstroom………
2.60
ii
Table 3: Water Treatment Plants owned by the City of Cape Town………………………………
2.64
Table 4: List of Waste Water Treatment Works owned by the City of Cape Town……………...
2.65
Table 5: Reticulation Water Service Tanks…………………………………………………………..
2.68
Table 6: Bulk Water Service Reservoirs……………………………………………………………..
2.69
Table 7: Reticulation Infrastructure by supply zones……………………………………………….
2.71
Table 8: Approximate Age of Water Pipes…………………………………………………………..
2.77
Table 9: Materials of Pipes…………………………………………………………………………….
2.78
Table 10: Pipe Sizes……………………………………………………………………………………
2.79
Table 11: Sewer Pipe Material…………………………………………………………………….…..
2.83
Table 12: Sewer Pipe Size and Length………………………………………………………………
2.84
Table 13: Waste Water Treatment Compliance/Non-compliance…………………………………
2.87
TOPIC 6: OPERATION AND MAINTENANCE PLAN
Table 1: Water Pipework to be Replaced in 2011/12……………………………………………….
2.95
Table 2: Estimated Sewer Rehabilitation Lengths……………………………………………….….
2.96
Table 3: Class 1: Drinking Water Quality for December 2011 (SANS 241 requirements per
population size; 1 sample: 20 000 population)………………………………………………………
2.97
Table 4: Waste Water Treatment Non-Compliance as at January 2012…………………………
2.99
Table 5: Status of Equipment and Plant on Wastewater Treatment Works……………………...
2.101
Table 6: Status of Equipment and Plant at Bulk Water Installations………………………………
2.105
Table 7: Status of Equipment and Plant on Pump Stations………………………………………..
2.106
iii
TOPIC 7: ASSOCIATED SERVICES
Table 1: Education Plan for Water Services…………………………………………………………
2.107
Table 2: Water Service levels at schools and tertiary education facilities………………………..
2.107
Table 3: Health Plan for Water Services……………………………………………………………..
2.133
Table 4: Education Plan for Sanitation…………………………………………………………..…...
2.133
Table 5: Sanitation Service levels at schools and Tertiary Education Facilities……….………..
2.133
Table 6: Health Plan for Sanitation………………………………………………………….………..
2.134
TOPIC 8: CONSERVATION AND DEMAND MANAGEMENT
Table 1: Annual Water Demand Growth…………………………………………………….……….
2.137
Table 2: Summary of Strategic Goals………………………………………………………………...
2.139
Table 3: Goal A and D breakdown into sub goal targets……………………………….…………..
2.143
Table 4: Non-Revenue Water balance according IWA balance……………………………….…..
2.145
Table 5: Non-Revenue Water Trends…….……………………………………………….………….
2.146
TOPIC 9: WATER RESOURCES
Table 1: Main raw water storage dams and capacities…………………………………….……….
2.150
Table 2: Capacities of Minor Dams Supplying Water to Cape Town…………………….……….
2.150
Table 3: Surface water sources (DWA and CCT owned)……………………………………….….
2.152
Table 4: Volume of Treated Effluent Consumption for June 2011………………………………...
2.154
Table 5: Interventions to be implemented or studied further…………………………….…………
2.163
iv
TOPIC 10: FINANCIAL PROFILE
Table 1: Historic Capital Budget of Water and Sanitation Services…………………………….…
2.168
Table 2: The capital expenditure in Table 1 was financed from the following sources………….
2.169
Table 3: Projected Capital Budget of Water and Sanitation Services………………………….…
2.170
Table 4: Sources for Projected Capital Budget of Water and Sanitation Services……….……..
2.171
Table 5: The Historic Operating Costs of Water and Sanitation Services………………….…….
2.172
Table 6: The Historic Income of Water and Sanitation Services…………………………………..
2.173
Table 7: Projected Operating Costs of Water and Sanitation Services (as at May 2012)………
2.173
Table 8: The Projected Income of Water and Sanitation Services (as at May 2012)…………...
2.174
Table 9: Historic Water and Sanitation Tariffs – Residential……………………………………….
2.176
Table 10: Proposed Tariffs for Water Services Consumption (10%)……………………………...
2.177
Table 11: Proposed Tariffs for Sanitation Services…………………………………………………
2.178
Table 12: Proposed Tariff Commercial and Industrial Water………………………………………
2.183
Table 13: Proposed Tariff Commercial and Industrial Sanitation………………………………….
2.183
Table 14: The Projected Income and Expenditure of Water and Sanitation Services……....….
2.185
TOPIC 11: INSTITUTIONAL ARRANGEMENTS
Table 1: Water Service institutional arrangements………………………………………………….
2.189
TOPIC 12: SOCIAL AND CUSTOMER SERVICE REQUIREMENTS
Table 1: Resources available to perform the function………………………………………..…….
2.202
Table 2: Water Distribution Networks………………………………………………………..……….
2.203
v
Table 3: Water Meter Connections………………………………………………………………...…
Table 4: Chamber Covers Replacement………………………………………………………..……
2.204
2.205
Table 5: Sewer Blockage Incidents…………………………………………………………..……….
2.205
Table 6: Sewerage Blockages per areas of Metro (for month of November 2011).................…
2.206
Table 7: Sewer Networks Repairs and Maintenance……………………………………………….
2.206
Table 8: Quality of Services Provided…………………………………………………………...…...
2.210
Table 9: Ratings from previous surveys……………………………………………………………...
2.210
Table 10: Cumulative Notification Statistics July-Nov 2011………………………………..………
2.212
TOPIC 13: LIST OF PROJECTS
Table 1: Three Year Approved Capital Budget of the CCT 2012/13………………….…………..
2.215
LIST OF FIGURES
DESCRIPTION:
PAGE
NO:
TOPIC 2: DEMOGRAPHICS
Figure 1: Locality Map of COCT……………………………………………………………………….
2.17
Figure 2: Structure of Water and Sanitation department……………………………………………
2.19
Figure 3: Reticulation Districts…………………………………………………………………………
2.19
Figure 4: Topography…………………………………………………………………………………...
2.21
Figure 5: Biodiversity Network: Source: Cape Town Spatial Development Framework:
Technical Report 2010………………………………………………………………………………….
2.24
Figure 6: Location of Urban Growth…………………………………………………………………...
2.25
Figure 7: Existing Land Use and Potential Future Development Areas…………………………...
2.26
vi
Figure 8: Aligning of Future Growth and Infrastructure Investment………………………………..
Figure 9: Socio-economic status of the City of Cape Town………………………………………...
Figure 10: Households earning below Household Subsistence Level (household income
below R3500)…………………………………………………………………………………………….
Figure 11: Projected Population Growth for the City of Cape Town……………………………….
Figure 12: Province from which people moved into Cape Town since October 2001…………..
Figure 13: Age Profile by Gender for 2009…………………………………………………………...
2.27
2.29
2.32
2.35
2.36
2.37
TOPIC 3: SERVICE LEVELS
Figure 1: Location of Informal Areas…………………………………………………………………..
2.43
Figure 2: Location of Informal Areas Near N2………………………………………………………..
2.44
Figure 3: Breakdown of residential consumer units as at 31 December 2011……………………
2.47
TOPIC 4: SOCIO-ECONOMIC
Figure 1: City’s Sectoral contribution to GDPR (1995 & 2004) (Fact-Sheet, Cape Town’s
Economy, August 2011)………………………………………………………………………………...
2.49
TOPIC 5: WATER SERVICE INFRASTRUCTURE
Figure 1: Main Components of Bulk Water Supply Infrastructure………………………………….
2.58
Figure 2: Main components of Wastewater Treatment Infrastructure showing Catchments……
2.58
Figure 3: Schematic of Atlantis Water Supply Scheme……………………………………………..
2.61
Figure 4: Waste Water Treatment Plant Average Compliance for 2010/11 financial year………
2.86
Figure 5: Waste Water Treatment Plants Average Compliance for COD (2010/11)……………..
2.89
Figure 6: Waste Water Treatment Plants Average Compliance for TSS (2010/11)……………..
2.90
vii
Figure 7: Waste Water Treatment Plants Average Compliance for Ammonia (2010/11)……….
2.91
TOPIC 8: CONSERVATION AND DEMAND MANAGEMENT
Figure 1: Water Demand Projections (source: Recon Strategy)…………………………………...
Figure 2: Annual Water Demand Growth……………………………………………………………..
Figure 3: Total projected WDM initiative curves (Aurecon)…………………………………………
2.136
2.138
2.138
TOPIC 9: WATER RESOURCES
Figure 1: Western Cape Water Supply System (WCWSS)…………………………………………
2.149
Figure 2: 16 year long term history of reservoir storage capacity………………………………….
2.151
Figure 3: Water Demand (Percentage below unconstrained demand versus target of 20%).….
2.157
Figure 4: Distribution of Water Demand………………………………………………………………
2.158
Figure 5: Historic and Projected Total Water Demand from the WCWSS………………………...
2.161
TOPIC 12: SOCIAL AND CUSTOMER SERVICE REQUIREMENTS
Figure 1: Water Related Customer Complaints………………………………………………………
2.211
Figure 2: Sewer Related Customer Complaints……………………………………………………...
2.211
viii