XN000022-1988-06-08 — Page 26

WEDNESDAY, JUNE 8, 1988

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25

STEPS TO COMBAT NULLAH POLLUTION OUTLINED

*

JOHN

PROJECTS ARE AT HAND TO REDUCE THE POLLUTION OF THE NULLAH, THE SECRETARY FOR HEALTH AND WELFARE, THE HON SAID IN THE LEGISLATIVE COUNCIL TODAY (WEDNESDAY).

YUEN LONG CHAMBERS,

"THE YUEN LONG NULLAH IS A HEAVILY POLLUTED WATERCOURSE, CAUSES A CONSIDERABLE SMELL NUISANCE, MR CHAMBERS SAID IN A REPLY TO A QUESTION BY THE HON TAI CHIN-WAH.

WHICH

WRITTEN

"THE POLLUTION ORIGINATES FROM LIVESTOCK WASTE, UNSEWERED

INDUSTRIAL

AND VILLAGES AND ISOLATED HOUSES,

DISCHARGES,

DISCHARGES

IN SEWERED AREAS THAT ARE

CONNECTED TO THE SURFACE WATER DRAINAGE SYSTEM."

WRONGLY

ONE OF THE PROJECTS IN THE PUBLIC THE PROBLEM WAS THE YUEN LONG NULLAH ENVIRONMENTAL PROJECT, HE SAID.

WORKS

ΤΟ PROGRAMME

COMBAT IMPROVEMENT

15 "THIS PROJECT

AIMED AT REDUCING THE SMELL AND VISUAL

THE INTERIM PERIOD BEFORE NUISANCE OF THE YUEN LONG NULLAH IN

THE IN 1991, AND LIVESTOCK WASTE CONTROLS COME INTO EFFECT IN THIS AREA THE SEWAGE TREATMENT AND SEWERAGE SCHEMES ARE COMPLETED, EXPLAINED.

HE SAID THE SCHEME COMPRISED:

(A)

(B)

MR CHAMBERS

ERECTION OF AN INFLATABLE DAM DOWNSTREAM OF YUEN EXCLUDE POLLUTED TIDAL WATERS;

LONG то

VELOCITIES

CONSTRUCTION OF LOW FLOW CHANNELS TO CONFINE THE FLOWS THE CENTRE OF THE NULLAHS, MAXIMISE MINIMISK DEPOSITION OF SEDIMENT;

ΤΟ

AND

(C)

CONSTRUCTION OF A PUMPING

ΤΟ STATION

CONVEY

LOW

FLOWS

(D)

AROUND OR OVER THE INFLATABLE DAM; AND

OF

THE

CONCRETE

LINING

CONSTRUCTION

OF THE NORTHWARDS TO THE LOCATION OF THE INFLATABLE DAM,

DESIGN STAGE

THE $48 MILLION PROJECT WAS IN THE EXPECTED CONSTRUCTION WOULD BEGIN IN SEPTEMBER 1989 AND BY JUNE 1991.

NULLAH

AND IT WAS BE COMPLETED

AS REGARDS I

IMPROVEMENT TO THE YUEN LONG SEWAGE TREATMENT WORKS, ΤΟ UPGRADE THE MR CHAMBERS SAID A $125 MILLION PROJECT WAS PROPOSED

SECONDARY AND ENSURE THAT A STANDARD OF TREATMENT FROM PRIMARY TO HIGH STANDARD OF EFFLUENT WAS DISCHARGED INTO THE NULLAH.

/WORK WAS