As suggested by Mckenzie (2001), BABE concepts were used to further partition RL into bursts and background leakages by computing the UARL, as explained in ‘Partitioning of UFW. Table 5 summarizes the partitioning of RL into bursts and background losses.

Table 5

Summary of calculations for losses due to bursts (Lb) for all the study areas

AreaRL m3/monthUARL m3/monthBursts (Lb) m3/monthaUARL as % of RLbLb as % of RL
Area 15 4,221 415 3,806 10% 90%
Area 18 33,862 4,260 29,602 13% 87%
Area 28 1,059 370 689 35% 65%
AreaRL m3/monthUARL m3/monthBursts (Lb) m3/monthaUARL as % of RLbLb as % of RL
Area 15 4,221 415 3,806 10% 90%
Area 18 33,862 4,260 29,602 13% 87%
Area 28 1,059 370 689 35% 65%

aBursts = reported and unreported leakages (Thornton et al. 2008).

bUARL = background leakages.

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