Sewerage Service

No Data Item Comment Unit
70 Population served – sewer connection Population under responsibility of the utility with sewerage services through house connections. ‘000 inhabitants
71 Number of sewer connections Total number of sewer connections (residential and non-residential) at year end in thousands. ‘000
74 Length of the sewer system(s) Total length of the sewerage network (excluding service connections). km
79 Number of blockages in the sewer system(s) Total number of sewer blockages in the network during the year. #/year

Sewerage service (2)

No Data Item Comment Unit
81a Total volume of wastewater collected Volume of wastewater collected through the sewer system or by tanker. Million m3/year
Where it cannot be measured, estimates should be made based on water use & infiltration from the ground (which should be included).
81b Total volume of wastewater collected – residential Volume of wastewater collected from residential connections through the sewer system or by tanker Million m3/year
Where it cannot be measured, estimates should be made based on water use & infiltration from the ground (which should be included).
81c Total volume of wastewater collected – industrial & commercial Volume of wastewater collected from industrial and commercial connections through the sewer system or by tanker Million m3/year
Where it cannot be measured, estimates should be made based on water use & infiltration from the ground (which should be included).
81d Volume of wastewater that is treated to primary level Primary treatment is settlement that removes a significant proportion of solid matter. Screens are not primary treatment. ‘Million m3/year
81e Volume of wastewater that is treated to at least secondary level Secondary treatment is generally biological, and removes oxygen demand amongst other contaminants. Million m3/year
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