XN000022-1994-03-14 — Page 2

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MONDAY, MARCH 14, 1994

SEWAGE CONTRACT TO IMPROVE VICTORIA HARBOUR WATER

* * * * *

CONSTRUCTION WORKS FOR STAGE I OF THE STRATEGIC SEWAGE DISPOSAL SCHEME (SSDS) WILL BEGIN LATER THIS MONTH.

THE FIRST WORKS CONTRACT UNDER THIS STAGE WAS SIGNED AT A CEREMONY TODAY (MONDAY).

THE $99 MILLION CONTRACT IS FOR THE INSTALLATION OF PILES FOR SEDIMENTATION TANKS OF A CHEMICALLY-ASSISTED PRIMARY SEWAGE TREATMENT WORKS TO BE BUILT ON STONECUTTERS ISLAND.

THE DIRECTOR OF DRAINAGE SERVICES, NR SIU CHUEN, CONTRACT WITH A REPRESENTATIVE OF THE CONTRACTOR, LIMITED.

FRANKI

THE PILING WORKS WILL BE COMPLETED ON MAY 30, 1995.

SIGNED THE CONTRACTORS

EXPLAINING THE PROJECT AFTER SIGNING THE CONTRACT, MR SIU SAID THE GOVERNMENT COMMISSIONED THE DETAILED DESIGN AND CONSTRUCTION WORKS OF THE SSDS STAGE I LAST YEAR ΤΟ TACKLE THE PROBLEM OF DETERIORATING WATER QUALITY IN VICTORIA HARBOUR AS SOON AS POSSIBLE,

THE ESTIMATED COST FOR THIS STAGE IS ABOUT $5.3 BILLION.

MR SIU SAID A NETWORK OF LARGE SEWAGE TUNNELS, ABOUT 23 KILOMETRES IN LENGTH WITH DIAMETERS RANGING FROM ONE METRE то THREE METRES, WOULD BE CONSTRUCTED AT 150 METRES UNDERGROUND TO COLLECT THE SEWAGE FROM SEVEN EXISTING PRELIMINARY TREATMENT WORKS AT CHAI

WAN, SHAU KEI WAN, TSEUNG KWAN O, KWUN TONG, TO KWA WAN, KWAI CHUNG TSING YI.

AND

ON

THE NEW CHEMICALLY-ASSISTED PRIMARY SEWAGE TREATMENT WORKS STONECUTTERS ISLAND WILL TREAT THE COLLECTED SEWAGE BEFORE DISCHARGE VIA A SUBMARINE OUTFALL AT THE WESTERN HARBOUR ANCHORAGE AREA," HE ADDED.

THE WASTEWATER CATCHMENT AREAS COVERED BY THE SSDS STAGE I ENCOMPASS CHAI WAN, SHAU KEI WAN, TSEUNG KWAN 0 AND THE AREAS IN KOWLOON BETWEEN TSUEN WAN AND KWUN TONG.

THE POPULATION TO BE SERVED IS ABOUT 3.5 MILLION AND THE VOLUME OF SEWAGE TO BE TREATED IS 1,700,000 CUBIC METRES A DAY.

DOMESTIC AND INDUSTRIAL SEWAGE FROM THESE AREAS CURRENTLY DISCHARGING INTO THE HARBOUR AFTER PRELIMINARY SCREENING WILL BE COLLECTED AND CONVEYED THROUGH THE NETWORK OF DEEP SEWAGE TUNNELS TO THE CHEMICALLY-ASSISTED SEWAGE TREATMENT WORKS ON STONECUTTERS ISLAND FOR TREATMENT.

MR STU SAID THIS WOULD REMOVE POINT SOURCES OF POLLUTION AT EACH LOCAL SCREENING PLANT AROUND VICTORIA HARBOUR.

WORKS

"THE SEWAGE WILL ALSO RECEIVE A HIGHER LEVEL OF TREATMENT USING CHEMICALLY-ASSISTED SEDIMENTATION AT THE SEWAGE TREATMENT ON STONECUTTERS ISLAND.

"THE WATER