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Batam - Indonesia

The Batam Industrial Development Authority (BIDA) introduced the private sector to assist with the development of infrastructure facilities to match the growth in development. This not only bought in international expertise but also prevented a debt burden on the Government of Indonesia through the use of Private Finance.

Partnership - BIDA awarded Cascal and its local joint venture partners Bangun Cipta Kontraktor and Syabata Cemerlang, a 25 year concession contract in 1995 to operate, manage and develop the water facilities on the island. The partners set up a local company, Adhya Tirta Batam (ATB), to fulfil its concession obligations.Cascal and BCK recently acquired Syabata Cemerlanh shareholding and now equally own ATB.

Connections - (ATB) serves a population of over 700,000 people with 108,000 metered connections. Meter audit and leakage teams ensure that ATB maintains meters in a functional, accurate and secure manner. Over the first two years of operation ATB reduced leakage from forty-nine percent to thirty percent. Further investment is being implemented to reduce non-revenue water to twenty-five percent, and even lower, over the remainder of the concession period. Specialist training to local staff at ATB formed part of the initial technology training.

ATB - ATB is responsible for operational activities from raw water extraction, treatment, distribution, and customer services such as billing and collection during the concession period. Capital investment also forms an important part of ATB's responsibility.The client BIDA is benefiting from high investments by ATB, and receives payments for raw water abstraction and asset rental.The water supply on Batam Island comprises seven water treatment plants, two of which ATB has constructed since beginning the concession. Production capacity has leapt from 850 litres per second to 1,550 litres per second through both construction and refurbishment of existing water treatment plants.

Developments - The new treatment plant in Duriankang will be expanded in stages to cope with extensive demand for water. Already producing five hundred litres per second the plant is designed to accommodate up to three thousand litres per second in the future. Construction of new transmission mains, pumping stations and storage reservoirs will allow for upgrades as required. Over the first five years of the concession contract, 196 kilometres of new water mains have been installed. Asset management planning techniques have enabled targeted investment in the water supply network. Through the use of network modelling, data logged district metered zones and detailed consumption analysis and forecasting, non revenue water is controlled and the spectacular expansion has been efficiently anticipated and managed. Despite the enormous increase in production volumes excellent water quality is maintained by continuous sampling of the treatment plants and distribution system. In total the company's central laboratory samples and analyses over 3,300 samples per month. ATB is continuously striving to improve customer service. 2002 saw the opening of a new customer service centre located in Batam centre, an ever popular main commercial and business area of Batam. ATB has also developed a unique bill payment service for its customer, expanding the number of payment points to include branches of local banks.

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