ANTALYA WATER AND WASTE WATER AUTHORITY (ASAT GENEL MÜDÜRLÜĞÜ)

WATER LOSSES MANAGEMENTIN WATER SUPPLY SYSTEM

Cem ÇAKMAK Leakage Chief Supervisor, Geological Engineer

WATER LOSSES MANAGEMENT

• The basic requirement for water losses management in water supply systems is require existing coordinated network data transfer from field to any GIS software and updating of any data which one is new added to the your network.

• In this context, any objects must be GPS coordinated and have as much as possible information which is new added to your system. The effective GIS software which is supported with asset management, provides the ultimate benefit to the company and leads to the following conclusions:

WATER LOSSES MANAGEMENT

• By sending accurate and clear data of network to the modeling software (we are working with WaterGems in ASAT), than appearance to the correct results and finally useful comments.

• As a result of relating subscriber with buildings in GIS software; allowing that inquiries: DMA (District Meter Area)/subscriber, street/ subscriber, building/subscriber, and if possible block-parcel/ subscriber, pressure zone/subscriber.

WATER LOSSES MANAGEMENT

• After the actual isolation areas data transferred to GIS software; as a result of relating between GIS software with Subscriber Information Software; allowing that comparisons: DMA/consumption, street/consumption, building/consumption and “subscriber to the desired group”/ consumption.

• The entering all repairs on water network to GIS software with handheld computers, allowing the inquiry "repair history". After getting the results of repair history, than creating “pipe renewal" programs.

WATER LOSSES MANAGEMENT

• As a result of relating between GIS software with Water Modeling software; the company also have the ability to determine of "new network requirements“ in addition to the demands of subscribers.

• Also in the projections spread over years, in the situation of interpreted together with population forecasting and new areas to be opened reconstruction; the company can provide to determine of new network requirements.

WATER LOSSES MANAGEMENT

• As a result of relating between building with branch in GIS software; during in the water outage situation for any reason, determining the optimum number of the valve for cutting of flow and giving this information to the operator about which building or area will live in water-stress.

• The most simple benefit is the exactly knowledge of the underground lines in the location of excavation for any reason. Least “time, labor, and asphalt destruction” can be listed as the most productivity.

WATER LOSSES MANAGEMENT

• In this way, the operation of network that managed by GIS software and shaped according to the hydraulic rules in modeling software; the company gets huge benefits than unscheduled operating method. So system efficiency is increased. But the most important thing to remember here is this:

• The first and most important action is to renewal of water network. The “life lost” pipes and network is in the area which are certainly known loss or leakage amount is high by the company, should be start pipe renewal program according to installation methods.

WATER LOSSES MANAGEMENT

To keep in your mind, SCADA can made with just observation and valve intervention, the leakage and repairing activities can made just out fixes on skimmer pipes, with pressure management on network can made just prevention to increase of existing leakage amount!

REDUCE THE AMOUNT OFLOSS AND LEAKAGE

• WHAT SHOULD WE DO?

• Pipe renewal.• To entering of current and updated water network coordinated

information data to GIS software with as much information as possible.

• To creating pressure zones for optimization of water supply system and using PRVs for local optimization.

• To establishing SCADA system, remotely monitoring to production facilities and the water network with the highest possible measurement point (flow, pressure, water quality etc.)

REDUCE THE AMOUNT OFLOSS AND LEAKAGE

• As a result of the creation isolated areas, follow-up and compacting loss and leakage. In this time; step tests, determination of private reservoirs and wells, estimation of seasonal "night flow limits" assessing the condition grade of the network, determination of treatments and the meter losses, adding to consumption after detecting water usage point without meters.

• Of course, effective usage of leakage equipment!