PILOT PROJECT ON NRW IN SHEETAL PARK AREA OF RAJKOT CITY IN GUJARAT Danish Water Forum AND Rajkot Municipal Corporation

OBJECTIVE AND SCOPE Installation of meters. Quantification of leakage. Leakage detection survey. Training in use of detection instruments. Develop an appropriate methodology. Propose water loss management tools. To facilitate RMC staff to demonstrate the need to reduce the NRW in pilot area.

STUDY AREA: SHEETAL PARK

Sub zone no 2 Total 160 households (800 population) Length of Network 1.2km (100mm–350mm) Duration of Supply: 20 min (8am–8:20am)

UNDERSTANDING NRW - we need to minimize non- revenue water To increase the revenue Water production Revenue water Non- Revenue water Billed/Metered consumption, construction, irrigation, etc. Unbilled consumption/ Metered inaccuracy, leakage

UNDERSTANDING NRW NRW = Inflow – Received Continuous process How much water is being lost? Where/why are the losses occurring? Strategies to reduce losses and improve performance. Maintain the strategy and sustain the achievements gained. Approach = Water Audit + Leak Detection

WATER AUDIT (PREPARATION) Installation of Flow meters, 22 in total (7 Bulk meters and 15 Consumer meters) Division of entire network in 5 command areas COMMAND AREA WATER METER NUMBER CONSUMER WATER METER NUMBER SECTIONS COVERED (MEASURED HOUSEHOLDS) CONSUMERS 1 WM1 and WM2 200 mm pipeline-Nil - 2WM5 CWM1, 2, 3, 13, 14 and CWM15 Section 1, 7, 8 and 9 (3,1,1,and 1) 57 3WM6CWM11, 12,Section 6 (2)14 4WM4CWM4, 5, 6 and 10 Section 2,3 and 4 (1,2, and 2) 73 5WM7CWM8 and 9Section 5 (2)17

WATER AUDIT (UNDERSTANDING) Understanding various losses – Commercial/Apparent losses – Physical losses Procedure for water audit – Input volume of Bulk water meter = Total quantity used by consumers (Avg. of consumer meters X no of consumers) – WM5 = (Av of CWM 1,2,3,13,14 &15 X 59)

WATER AUDIT (FINDINGS) 30.66% losses in distribution system 22% unregistered connections, which is a significant number. Inequitable distribution of water, span from litre of water per family. No meters installed to measure the actual supply and consumption -> difficult to do water audit for the city.

WATER AUDIT (FINDINGS) COMMAND AREA WATER METERS TOTAL WATER RELEASED (M3) AVG AMT OF WATER RECIVED BY CONSUMER (M3) TOTAL WATER RECEIVED (M3) REAL LOSS (M3) APPARENT LOSS (M3) REAL LOSS (%) APPARENT LOSS (%) 1 Leak in 200mm pipe Percentage total losses in command area WM5-WM WM WM4-WM WM TOTAL Percentage total losses in system30.66

WATER AUDIT (FINDINGS) Consumers charged flat fees of Rs. 840 per year No Asset Management system -> difficult for operation and maintenance. Operation and maintenance of assets is given to local contractors for whole city. No taps or ball valves at the consumer end -> excess use/misuse of water by consumers Consumers are unaware about water conservation habits.

WATER AUDIT (FINDINGS)

FINANCIAL IMPLICATIONS RMC Real Losses : 7.74 m3 in 1.2km (assumed the same situation in other parts of city) Total water loss = m3 per day (20 min) supply for 2250km Average cost of Supply to RMC = Rs 10 per m3 Total money loss/day = 10x17415 = Rs (1.74 lac/day)

FINANCIAL IMPLICATIONS RMC Apparent Losses m3 in 1.2km (assumed the same situation in other parts of city) Total water loss = m3 per day (20 min) Average cost of Supply to RMC = Rs 10 per m3 Total money loss/day = 10x35550 = Rs (i.e lac/day)

FINANCIAL IMPLICATIONS GWSSB Assuming all areas get 480 liters 235,000 consumers, 230 MLD is supplied Water received by consumers 235,000 x 480 liters = MLD Difference 230 MLD MLD = MLD Losses 51% (Very High) Average cost of production Rs. 52 per kilo liter Total Money = Rs lacs per day

LEAK DETECTION (PREPARATION) Distribution network has to be water tight – all the consumer connections are closed – No water extracted during the leak detection survey – System is pressurized slowly to avoid sudden burst of pipeline

LEAK DETECTION (EQUIPMENT’S) Equipment's used for Leak detection – Aqua M50 – Piezo-detection rod – Microcorr touch correlator – Ground Microphone (X-mic)

LEAK DETECTION (RESULT’S) Seven leaks were identified during survey Section 1 - House numbers A-8, A-16 Section 3 – House number C12/13 Section 4 – House number B-12/D, B-15 Section 5 – House number D-3 Section 6 – House number E-4 Amount of water lost was 2-3m3 in 20 min supply Total water lost = 15-20m3 in 20 min of supply

RECOMMENDATIONS Study the entire network of Rajkot city Installation of meters Campaign to register all consumers Billing by metering Pressure management by Hydraulic Modeling Phased replacement of AC pipes by HDPE pipes Improved Operation and Maintenance Improved hours of water supply and gradual shift to 24X7 Systematic leak detection survey Asset Management system Phased program for 100% cost recovery INTERACTIVE MAPS GRAPHS TABLES PERFORMANCE INDICATORS REPORTS

NEXT STEPS Final Report by DWF: 10 th January Installation of Bulk and Consumer Meters by RMC for entire Rajkot City (Estimated Cost INR 40 Crores) Water Audit and Modelling for equitable. distribution for Rajkot City: 6 Months. Tendering by RMC for NRW reduction program. Implementation of program on NRW, Asset Management and SCADA etc. for Rajkot: 3 years The above can be followed by 24x7 water supply

Engage at all levels

THANK YOU!