Table 2

Assessment results of operational performance indicators

Performance criterionIndicator codePerformance indicatorAssessment criterionAssessment dataValue of PIIndicator typeScore
Inspection and maintenance Op-1 Pumping inspection and maintenance No. of inspections done/required number of pump inspections 11/12 92% 
Op-2 Storage tank cleaning Number of cleaned/total number of storage tanks 0/5 
Op-3 Network inspection Inspected/total number of district metering zones 5/8 63% 
Op-4 Gate valve inspection Inspected/total number of gate valves 581/1,120 52% 
Op-5 Leakage control repair Surveyed (km)/total main pipe length(km) 200/620 65% 
Op-6 Hydrant inspection Inspected/total number of fire hydrants 850/1,532 55% 
Calibration of the instruments Op-7 System flowmeter calibration Number of calibrated/total number of flowmeters 37/37 100% 
Op-8 Water level sensor calibration Number of calibrated/total number of water-level sensors 0/0 0% 
Op-9 Inline water quality monitoring equipment calibration Calibrated/total number of inline water quality sensors 0/0 
Op-10 Water quality equipment's calibration Calibration/total number of water quality equipment 0/0 
Op-11 Pressure meter calibration Calibrated/total number of pressure meters 2/15 13% 
Rehabilitation Op-12 Mains rehabilitation Pipe length rehabilitated/rehabilitation required 17 m/17 m 100% 
Op-13 Mains renovation Pipe length renovated/pipe length requiring renovation 101 m/123 m 82% 
Op-14 Mains replacement Pipe length replaced/pipe length requiring replacement 39 m/42 m 93% 
Op-15 Meter replacement Number of meters replaced/meters requiring replacement 902/983 92% 
Op-16 Replaced valves Number of valves replaced/valves requiring replacement 25/25 100% 
Op-17 Service connection rehabilitation Number of service connections rehabilitated/service connections requiring rehabilitation 891/1,183 75% 
Op-18 Pump replacement Pump capacity replaced/pump capacity requiring replacement 30 kW/45 kW 67% 
Operational water losses Op-19 Water losses (unaccounted-for water) per connection per day Water losses (m3 per day)/no. of connections 17,836/22,101/ 800 L/day/connection 
Op-20 Apparent or commercial losses per connection per day Apparent losses (m3 per day)/no. of connections 1,151/22,101  52 L/day/connection 
Op-21 Real or physical losses per connection per day Real losses (m3 per day)/no. of connections 16,712/22,101 756 L/day/connection 
Op-22 Residential customer reading efficiency Number of residential meters read/total number of residential meters 18,568/22,101 84% 
Op-23 Infrastructure leakage index CARL (Mm3/year)/UARL (Mm3/year) 6.1/0.394 15.5 
Op-24 Operational meters Number of operational meters/number of direct customer meters 18,668/22,101 84% 
Op-25 Unbilled unmetered water Free tankers (Mm3)/system input volume (Mm30.266/21.30 1% 
Failure Op-26 Pump failures (days/pump/year) No. of pump failure/no. of pumps 1/4 25% 
Op-27 Mains failures (km/year) Length of mains with failures (km)/total mains length(km) 66/620 11% 
Op-28 Service connection failures (no./ year) No. of service connection failures/no. of service connections 2,369/22,101 11% 
Op-29 Hydrant failures (no./ year) No. of hydrant failures/total no. of hydrants 821/1,532 54% 
Op-30 Power failures (hours/ year) Power failure hours/total working hours 0/24 0% 
Op-31 Water-point failures (tanker filling station) (no./ year) No. of water point failures/no. of water points 2/15 13% 
Water quality metering Op-32 Water quality tests carried out No. of tests carried out/no. of tests required 345/408 85% 
Op-33 Physical-chemical tests carried out No. of tests carried out/no. of tests required 173/204 85% 
Op-34 Chlorine tests carried out No. of tests carried out/no. of tests required 173/204 85% 
Op-35 Microbiological (E-coli and total coliform) tests carried out No. of tests carried out/no. of tests required 172/204 84% 
Op-36 E-coli tests carried out No. of tests carried out/no. of tests required 172/204 84% 
Op-37 Coliform tests carried out No. of tests carried out/no. of tests required 172/204 84% 
Performance criterionIndicator codePerformance indicatorAssessment criterionAssessment dataValue of PIIndicator typeScore
Inspection and maintenance Op-1 Pumping inspection and maintenance No. of inspections done/required number of pump inspections 11/12 92% 
Op-2 Storage tank cleaning Number of cleaned/total number of storage tanks 0/5 
Op-3 Network inspection Inspected/total number of district metering zones 5/8 63% 
Op-4 Gate valve inspection Inspected/total number of gate valves 581/1,120 52% 
Op-5 Leakage control repair Surveyed (km)/total main pipe length(km) 200/620 65% 
Op-6 Hydrant inspection Inspected/total number of fire hydrants 850/1,532 55% 
Calibration of the instruments Op-7 System flowmeter calibration Number of calibrated/total number of flowmeters 37/37 100% 
Op-8 Water level sensor calibration Number of calibrated/total number of water-level sensors 0/0 0% 
Op-9 Inline water quality monitoring equipment calibration Calibrated/total number of inline water quality sensors 0/0 
Op-10 Water quality equipment's calibration Calibration/total number of water quality equipment 0/0 
Op-11 Pressure meter calibration Calibrated/total number of pressure meters 2/15 13% 
Rehabilitation Op-12 Mains rehabilitation Pipe length rehabilitated/rehabilitation required 17 m/17 m 100% 
Op-13 Mains renovation Pipe length renovated/pipe length requiring renovation 101 m/123 m 82% 
Op-14 Mains replacement Pipe length replaced/pipe length requiring replacement 39 m/42 m 93% 
Op-15 Meter replacement Number of meters replaced/meters requiring replacement 902/983 92% 
Op-16 Replaced valves Number of valves replaced/valves requiring replacement 25/25 100% 
Op-17 Service connection rehabilitation Number of service connections rehabilitated/service connections requiring rehabilitation 891/1,183 75% 
Op-18 Pump replacement Pump capacity replaced/pump capacity requiring replacement 30 kW/45 kW 67% 
Operational water losses Op-19 Water losses (unaccounted-for water) per connection per day Water losses (m3 per day)/no. of connections 17,836/22,101/ 800 L/day/connection 
Op-20 Apparent or commercial losses per connection per day Apparent losses (m3 per day)/no. of connections 1,151/22,101  52 L/day/connection 
Op-21 Real or physical losses per connection per day Real losses (m3 per day)/no. of connections 16,712/22,101 756 L/day/connection 
Op-22 Residential customer reading efficiency Number of residential meters read/total number of residential meters 18,568/22,101 84% 
Op-23 Infrastructure leakage index CARL (Mm3/year)/UARL (Mm3/year) 6.1/0.394 15.5 
Op-24 Operational meters Number of operational meters/number of direct customer meters 18,668/22,101 84% 
Op-25 Unbilled unmetered water Free tankers (Mm3)/system input volume (Mm30.266/21.30 1% 
Failure Op-26 Pump failures (days/pump/year) No. of pump failure/no. of pumps 1/4 25% 
Op-27 Mains failures (km/year) Length of mains with failures (km)/total mains length(km) 66/620 11% 
Op-28 Service connection failures (no./ year) No. of service connection failures/no. of service connections 2,369/22,101 11% 
Op-29 Hydrant failures (no./ year) No. of hydrant failures/total no. of hydrants 821/1,532 54% 
Op-30 Power failures (hours/ year) Power failure hours/total working hours 0/24 0% 
Op-31 Water-point failures (tanker filling station) (no./ year) No. of water point failures/no. of water points 2/15 13% 
Water quality metering Op-32 Water quality tests carried out No. of tests carried out/no. of tests required 345/408 85% 
Op-33 Physical-chemical tests carried out No. of tests carried out/no. of tests required 173/204 85% 
Op-34 Chlorine tests carried out No. of tests carried out/no. of tests required 173/204 85% 
Op-35 Microbiological (E-coli and total coliform) tests carried out No. of tests carried out/no. of tests required 172/204 84% 
Op-36 E-coli tests carried out No. of tests carried out/no. of tests required 172/204 84% 
Op-37 Coliform tests carried out No. of tests carried out/no. of tests required 172/204 84% 
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