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WEDNESDAY, NOVEMBER 13, 1991
COSTS TO BE RECOVERED AFTER CHOI HUNG WATER MAIN BURST
THE
THE
ACTION IS NOW UNDERWAY TO RECOVER FROM THE CONTRACTOR AND COSTS OF REPAIR WORKS, WATER SUPPLIES DEPARTMENT STAFF COSTS COST OF THE WATER FOLLOWING THE RECENT BURSTING OF A WATER PIPE IN THE CHOI HUNG AREA, THE SECRETARY FOR WORKS, MR JAMES BLAKE, SAID IN LEGISLATIVE COUNCIL TODAY (WEDNESDAY).
IN REPLY TO A QUESTION FROM THE HON RITA FAN, MR BLAKE SAID THE BURST WAS DUE TO A CONTRACTOR WORKING ON A HIGHWAYS DEPARTMENT ROAD INTERSECTION CONTRACT.
THE WATER MAIN WAS DAMAGED WITH A BACKHOE DIGGER WHILE EXCAVATING FOR AN OVERHEAD SIGN FOUNDATION, HE SAID.
ABOUT 0.72 PER AN ESTIMATED 18,000 CUBIC METRES OF WATER, OR CENT OF THE DAILY CONSUMPTION, WERE LOST DURING THE INCIDENT.
THE
MR BLAKE SAID REPORTS OF WATER MAIN BURSTS WERE TELEPHONED,
THE GENERAL USUALLY BY THE POLICE BUT SOMETIMES BY
ΤΟ PUBLIC, TECHNICAL COMPLAINTS CENTRE OF THE WATER SUPPLIES DEPARTMENT.
"THEY ARE REFERRED TO THE DUTY OFFICER AT THE NEAREST DEPOT, AND FOR THE CHOI HUNG INCIDENT THIS WAS THE KOWLOON ARGYLE STREET: DEPOT, HE SAID.
NECESSARY
VALVES.
"THE DUTY OFFICER SENDS ONE OF THE 24 HOUR EMERGENCY TURNCOCK
THE GANGS TO THE BURST LOCATION TO TURN OFF
THIS STOPS THE WATER FLOW AND ENABLES THE BURST TO BE REPAIRED,"
MR BLAKE SAID THE TIME TO REACH THE SITE DEPENDED UPON TRAFFIC CONDITIONS, BUT WAS TYPICALLY HALF AN HOUR IN URBAN AREAS.
NORMALLY "BECAUSE THE WATER MAINS ARE
OFF, SOME SEVERAL VALVES HAVE TO BE TURNED DISTANCE FROM THE ACTUAL BURST LOCATION.
IN A NETWORK SYSTEM, OF
MAY WHICH
BE SOME
WHERE "FOR LARGE DIAMETER MAINS, AND
THERE ARE PROBLEMS OF
ΤΟ NECESSARY
LOCATE AND FLOODING, EXCEPTIONALLY LONGER TIME MAY BE CLOSE ALL OF THE VALVES TO STOP THE FLOW, HE SAID.
FOR THE CHOI HUNG INCIDENT TECHNICAL COMPLAINTS CENTRE, THE LOCATION SOME 50 MINUTES LATER.
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THE REPORT FIRST GANG
WAS RECEIVED AT THE ARRIVED AT THE BURST
HOURS IT THEN TOOK TWO
IN DIFFICULT FLOODED CONDITIONS TO LOCATE AND TURN OFF SEVEN VALVES IN THE NETWORK.
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