List of Indicators and Definitions
The performacne indicators have been adopted from the guidelines issued by MoUD, GOI and their definition and method of detrmination is given below. In addition to these indicators, additional indicators have been developed to help local decision makers in identifying points of inefficiency and weaknesses in the system and take remedial measures.
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Water Supply |
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| S. No. |
Indicator |
Definition |
Formula of the indicators |
| Key Indicators | |||
| 1 |
Coverage of water supply connections |
Total households connected to the water supply network with a private (not shared) service connection, as percentage of total households in the ULB |
a)Total number of households in the service area b)Total number of households with direct water supply connections Coverage= (b/a)*100 |
| 2 |
Per capita quantum of water supplied |
Total water supplied to consumers expressed by population served per day |
a)Water supplied to the distribution system b) Water supplied to bulk consumer like Railways, Industrial Estate etc c)Population served d)Floating population served Per Capita Water supplied= [(a-b)/(c+d)] |
| 3 |
Continuity of water supply |
Average number of hours of pressurised water supply per day |
Average hours of pressurised water supply per day |
| 4 |
Quality of water supplied |
Percentage of water samples that meet or exceed the specified potable water standards and sampling regime, at treatment plant outlet and consumer points as defined by the CPHEEO |
a)Total number of water supply samples collected from WTP outlet and from distribution system in each month b)Number of samples that meet the specific potable water standards in the month Quality of water supply=[(b/a)*100] |
| 5 |
Cost Recovery in water supply services |
Percentage of total operating revenues from water supply-related charges to total operating expenses on water supply |
a)Total annual Operating expenses b)Total annual Operating revenues Cost recovery in water supply services=[(b/a)*100] |
| 6 |
Extent of Non-Revenue Water |
Difference between total water produced (ex-treatment plant) and total water sold expressed as a percentage of total water produced. NRW includes: (a) consumption which is authorised but not billed, such as public stand posts; (b) apparent losses such as illegal water connections, water theft and metering inaccuracies; (c) real losses which are leakages in the transmission and distribution networks |
a)Total Water produced & put into the transmission and distribution system b) Total water sold NRW=[(a-b)*100]/a |
| 7 |
Efficiency in redressal of customer complaints |
Total number of water supply-related complaints redressed within time as stipulated in service charter of the ULB, as a percentage of the total number of water supply-related complaints received in the year |
a)Total number of water supply related complaints received per month b)Total number of complaints redressed within the month Efficiency in redressal of complaints=[(b/a)*100 |
| 8 |
Extent of metering of water connections |
Total number of functional metered water connections expressed as a percentage of total number of water supply connections (including public stand post connections) |
a)Total number of direct service connections b)Total number of public stand posts c)Number of metered direct service connections with functional meters d) Number of metered public stand posts with functional meters Extent of metering of water connections= [(c+d)/(a+b)]*100 |
| 9 |
Efficiency in collection of water supply-related charges |
Percentage of current year revenues collected from water supply related taxes and charges as a percentage of total billed amounts (for water supply) |
a)Current revenues collected in the given year b)Total operating revenues billed during the given year Collection efficiency=[(a/b)*100] |
| 10 | Common Performance Indicator (CPI) | Overall status of water supply system of the system | |
| Additional Indicators | |||
| 11 |
Percentage Of Population With Access To Improved Water Services |
Extent of population in a town that has access to safe sources of water supply, including both individual connections as well as PSPs |
a) No of HH with water supply connection b) Population of the town c) House Hold Size Coverage=[(a*c/b)*100] |
| 12 |
Coverage of Municipal Area by Distribution Network |
Geographical area of the water supply network with respect to total area of the town |
a) Area covered by water supply network b) Total Municipal Area of the Town Coverage=[(a/b)*100] |
| 13 |
Power Cost for Producing unit Quantity of water in Rs./KL |
Expenditure on electricity incurred on unit production of water |
a) Total expenditure on electricity on water production per year b) Average water produced per day Indicator = [a/(No of days in the year*b)] |
| 14 |
Per MLD of Water O&M Expenditure |
Revenue expenses incurred per MLD for water supply services in the town |
a) Total annual O&M expenditure b) Average water produced per day in ML Indicator =(a/b) |
| 15 |
Average annual revenue per water connection |
Average revenue assessed to the consumers per connection per year |
a) Total revenue assessed annually for domestic consumers b) Number of functional domestic connections Indicator =(a/b) |
| 16 |
Revenue Assessment per MLD of Water Supplied |
Total revenue income assessed per MLD of water supply services provided in the town |
a) Total revenue assessment annually b) Average water produced per day in ML Indicator =(a/b) |
| 17 |
Efficiency in recovery of outstanding revenue of water supply related to previous years |
Extent of recovery of outstanding revenue related to previous years |
a) total Receipts against previous year’s outstanding b) Outstanding at the end of previous financial year Indicator =[(a/b)*100] |
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Waste water |
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| S. No. |
Indicator |
Definition |
Formula of the indicator |
| Key Indicators | |||
| 1 |
Coverage of toilets |
Total number of properties with access to individual or community toilets as a percentage of total number of properties in the city |
a) Total number of properties with access to individual or community toiles within walking distance in the service area b)Total number of properties without individual or community toilets within walking distance Coverage of toilets= (a-b/a)*100 |
| 2 |
Coverage of sewerage network s |
Total number of properties with individual connections to sewage network as a percentage of total number of properties in the city |
a)Total number of properties in the service area b)Total number of properties with direct connection to sewerage network Coverage of sewage network = (b/a)*100 |
| 3 |
Wastewater collection efficiency |
Quantum of wastewater collected at the intake of the treatment plant to the quantity of wastewater generated (as per CPHEEO, 80% of water consumed is wastewater generated) |
a)Total water supplied b) Estimated water use from other sources c) Wastewater collected Wastewater collection efficiency = [c/{(a+b)*0.8}]*100 |
| 4 |
Wastewater treatment capacity |
Quantum of wastewater treated to secondary treatment standards (removal of BOD and COD) as a percentage of normative wastewater generated |
a)Total water consumed b) Estimated water use from other sources c) Treatment Plant capacity Adequacy of treatment capacity ={c/(a+b)*0.8}*100 |
| 5 |
Extent of cost recovery in sewage management |
Percentage of total operating revenues from sewerage related charges to total operating expenses on sewerage network services |
a) Total annual operating expenses b) Total annual operating revenue Cost Recovery =={(b/a)*100} |
| 6 |
Quality of wastewater treatment |
Total number of wastewater samples (BOD and COD) that have passed to number of wastewater samples conducted, at the outlet of the treatment plant |
a) Total number of wastewater samples tested in a month b) Number of samples that pass the specified secondary treatment standards Quality of treatment= {(b/a)*100} |
| 7 |
Extent of recycling and reuse of treated sewage |
Quantity of treated wastewater that is recycled or reused as a percentage of quantity of wastewater received at the treatment plant |
a) Waste water received at STP b) Wastewater recycled or reused after appropriate treatment Extent of treated sewage recycled or reuse={(b/a)*100} |
| 8 |
Efficiency in redressal of customer complaints about sewage |
Total number of wastewater related complaints redressed within time as stipulated in service charter of the ULB, as a percentage of the total number of wastewater related complaints received in the year |
a) Total number of sewerage related complaints received per month b) Total number of sewerage related complaints redressed within 24 hours or the next working day within the month Efficiency in redressal of complaints ={(b/a)*100} |
| 9 |
Efficiency in collection of sewerage related charges |
Percentage of current year revenues collected from wastewater-related taxes and charges as a percentage of total billed amounts (for wastewater) |
a) Current revenue collected in the given year b) Total operating revenues billed during the given year Collection Efficiency =={(a/b)*100} |
| 10 |
Coverage by Septic tanks |
Extent of safe disposal of septage in cities which are not or partially covered by sewer network |
a) Total number of properties in the service area not connected to sewer network b) Total number of properties connected to septic tank Coverage by septic tanks = (b/a)*100 |
Additional Indicators |
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| 11 |
Coverage Of Municipal Area By Sewerage Network |
Geographical area of the sewerage network with respect to total Municipal area of the town |
a) Municipal area covered by sewerage network b) Total Municipal Area of the Town Coverage by Area = (a/b)*100 |
| 12 |
Power Charges for Collection/Disposal Of Unit Quantity of Wastewater |
Expenditure on electricity incurred in collection, pumping and treatment of unit quantity of wastewater |
a) Total expenditure on electricity on wastewater per day b) Average wastewater treated per day Power charges = (a/b)*100 |
| 13 |
Standby Power Generation Capacity |
Extent to which standby power generation capacity is installed compared to the requirement of actual maximum operating load |
a) Total installed power generation capacity b) Total max operating load of sewerage system Coverage by septic tanks = (a/b)*100 |
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Slum |
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| S. No. |
Indicator |
Definition |
Formula of the indicators |
| 1 |
Coverage of Water Supply Connections in Slum settlements |
Total households in slum settlements connected to water supply network with a private (not shared) service connection, as percentage of total households in all slum settlements in the ULB |
a)Total no. of households living in the slums b)Total no. of households living inthe slums with direct water supply connections Coverage=[(b/a)*100] |
| 2 | Coverage of sewerage network in slum settlements | Total number of slum households connected to sewerage network as a percentage of total number of slum households |
a) Total number of household living in the slums in the service area b) Total number of household living in the slums with direct connection to sewerage network Coverage of sewage network services = (b/a)*100 |
| 3 | Coverage of toilets in slum settlement | Total number of slum households with individual toilets as a percentage of total number of slum households |
a) Total number of household living in the slums in the service area b) Total number of house hold living in the slums with toilet Coverage of toilets = (b/a)*100 |