Manila, PhilippinesITAPEVÍ Project, Brazil - Carried out by BBLMadhya Pradesh Region, Indore, India - Carried out by WRPSebokeng/Evaton Area, Emfuleni, South Africa - Carried out by WRPTrinidad & Tobago - Carried out by VeritecCity of Toronto, Canada - Carried out by VeritecEmfuleni Municipality, South Africa - Carried out by WRPKhayelitsha Township, Cape Town, South Africa - Carried out by WRPNew Providence, Bahamas - Carried out by Paul Fanner & Julian ThorntonZagreb, Croatia - Carried out by IMGDOrange River Basin, South Africa - Carried out by WRPDover Region, Norfolk County, Ontario, Canada - Carried out by VeritecRegional Municipality of York, Canada - Carried out by VeritecRustenburg Local Municipality, South Africa - Carried out by WRPCaledon Well Systems, Region of Peel, Canada - Carried out by VeritecSao Paulo, Brazil - Carried out by Julian ThorntonSaskatoon Saskatchewan, Canada - Carried out by VeritecToronto, Canada - Carried out by VeritecPeel, Ontario, Canada - Carried out by VeritecWestern Highveld, Mpumalanga, South Africa - Carried out by WRP
Consolidated Water (Bahamas) Ltd (CWBL) contracted to build and operate the Blue Hills Road Reverse Osmosis Plant . As a part of this contract, CWBL was required to reduce the average daily Non-Revenue Water (NRW) in the New Providence distribution system by 1 MIG per day.
NRW Reduction Strategy
The NRW reduction strategy developed to achieve the required reduction entailed a combination of:
- Pump control and surge protection
- Pressure management
- District metering
- Leak detection and repair
- Large revenue meter improvement
- Monitoring and Control
Project Challenges
- Areas of fragile infrastructure
- Low system pressures - average 28.8 PSI
- Very high break rates - particularly service connections
- New Hydro Tower - Pressure increase of 26 PSI
- WSC level of service improvements, new customers
- Early achievement of target