WMI - Water Management International
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JAMAICAN WATER SUPPLY IMPROVEMENT PROJECT (JWSIP) - CATEGORY A1 WORKS <br>
ACTION PLAN IMPLEMENTATION FOR NRW REDUCTION IN STONY HILL AREA
Jamaica
JAMAICAN WATER SUPPLY IMPROVEMENT PROJECT (JWSIP) - CATEGORY A1 WORKS
ACTION PLAN IMPLEMENTATION FOR NRW REDUCTION IN STONY HILL AREA
WMI and NWC were engaged in a co-management arrangement for the Reduction of Non-Revenue Water (NRW) for the Stony Hill area. These included all the commercial and technical activities, and monitoring such as house-to-house survey, regularising consumers in several informal settlements, design and installation of meter banks, disconnections/reconnections, account monitoring, DMA monitoring, leak detection and repairs, pressure management of distribution network, maintenance of appurtenances and the calculation of Non-revenue Water.

WMI provided significant transfer of knowledge and best practice solutions to NWC personnel, including the production and development of databases of requisite tools to foster effective commercial monitoring of customer accounts. WMI also conducted formal and informal training in the areas of leak repairs on large diameter pipeline, installation of meters, etc.


Description of WMI services


1. Network Improvement Sherbourne Heights / Upper Mannings Hill Road / Kingswood:
  • Repair of leaks, replacement of gate valves, installation of Pressure Reducing Valves (PRVs), leak detection by acoustic methods (2 weeks), complete refurbishment of bi-directional altitude valve for Kingswood tank,
  • Supply and installation of new Ductil Iron pipelines (12”, 6”, 2-3-4”),
  • 450 m3 steel tank with associated overflow and washout.

2. NRW Reduction in Stony Hill:
  • Supply and installation of water meters and associated fittings (couplings, bends etc.), various valves and Meter Boxes,: (5/8", 1", 3“) with geo-referencing (using GPS units) of all replaced meters  and the  construction of 59 meter banks comprising a total of 783 water meters,
  • Supply of Materials for maintenance of distribution system by NWC Team: spare parts, equipment and tools for NWC team, fittings and materials for leak repair,
  • Technical assistance by W.M.I.  personnel at the disposal of NWC: leak detection services by acoustic methods, operation and maintenance services, hydraulic modelling, Customer Survey.

3. Installation of Large Meters: selection of most cost-effective meters to be replaced, geo-referencing (using GPS units) of all replaced meters, supply of specific equipment to NWC, namely cameras and GPS, supply and installation of commercial and large meters (1”, 2”, 3”, 4”) and associated fittings and accessories, construction of complete chambers for 2" to 4” water meters.


Key results


Reduction of NRW from 75% to 39% in 12 DMAs. The Contract target was 45%. (Estimated population in these DMAs is 15,000 people)


IDENTITY CARD

   Location
 
Kingston , Jamaica
   Date of award
 
04.2012
  Date of completion
 
12.2012
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