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The Future of Water in African Cities

Page 186

Variable

Quantitative

Quantitative

28. Percentage of population with access to improved sanitation

30. Number of cases of cholera from last outbreak

Quantitative

27. Future performance

Quantitative

Quantitative

26. Utility operating ratio

29. Percentage of wastewater treated

Quantitative

Type

25. Percentage of nonrevenue water

Indicator

Table A3.1 (continued)

Water supply service

Sanitation service

162 Persons

%

%

%

%

%

Units

Dashboard

Comparative table

Index

Notes and sources

(continued on next page)

Various sources (e.g., WHO, 2011; WHO, 2006).

Percentage of wastewater treated by treatment plant system of percentage of wastewater collected. Various sources (e.g., Mtethiwa, et al., 2008; UNHabitat, 2011a; World Bank, 2011c).

Various sources (e.g., AfDB, 2004; República de Mozambique, 2011; World Bank, 2009a).

Inverse of the Water Utility Vulnerability Index (WUVI). For methodology details see Moffitt et al., 2012. The WUVI gives an estimation of the probability of a water utility to face financial difficulty in the next two years; hence the inverse estimates the probability of strong future financial performance. To create this indicator, the inverse is taken: i.e., a high value indicates strong financial utility performance. Source: IBNET, latest year available.

Utility annual operating revenues/annual operating costs (IBNET, latest year available).

Percentage of water produced and lost before reaching the customer, either through leaks, theft, or legal use for which no payment is made. Various sources: (e.g., IBNET, latest year; Pinsent Masons, 2012; Hove and Tirimboi, 2011).


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