TIRPY
"TOPER 10, 1991
THE SYSTEM FOR GRADING BEACH WATER QUALI Y 1S AS FOLLOWS:
GRADE "1" INDICATES THAT THE WATER QUALITY IS GOOD. THE E. COLI COUNT IS NO MORE THAN 24 PER 100 MILLILITRES AT EACH BEACH So GRADED, AND THE EXPECTED RISK OF MINOR TILNESS TO SWIMMERS IS UNDETECTABLE.
GRADE "2" INDICATES THAT THE WATER QUALITY IS FAIR. THE E. COLI COUNT IS NO MORE THAN 180 PER 100 MILLILITRES AT EACH BEACH SO GRADED, AND THE EXPECTED HEALTH RISK IS NO MORE THAN 10 CASES OF MINOR ILLNESS PER 1,000 SWIMMERS.
GRADE "3" INDICATES THAT THE WATER QUALITY IS ACCEPTABLE. E. COLI COUNT IS NO MORE THAN 610 PER 100 MILLILITRES AT BEACH SO GRADED, AND THE EXPECTED HEALTH RISK IS NO MORR 15 CASES OF MINOR ILLNESS PER 1,000 SWIMMERS.
THE EACH
THAN
GRADE "4" INDICATES THAT THE WATER QUALITY IS POOR. THE E. COLI COUNT IS MORE THAN 610 PER 100 MILLILITRES AT EACH BEACH SO GRADED, AND THE EXPECTED HEALTH RISK IS MORE THAN 15 CASES OF MINOR ILLNESS PER 1,000 SWIMMERS.
THE DECISION WHETHER OR NOT TO CLOSE A BEACH TO SWIMMERS BASED ON A JUDGEMENT OF WHAT DEGREE OF POLLUTION IS ACCEPTABLE.
NORMALLY, THE CLOSURE OF A BEACH WOULD ONLY
BE CONSIDERED THE URBAN OR REGIONAL COUNCIL IF A "4" GRADE OCCURRED REPEATEDLY, THAT THE AVERAGE HEALTH RISK OVER THE BATHING SEASON EXCEEDED CASES PER 1,000 SWIMMERS.
IS
BY
90
15
SIMILARLY, THE REOPENING OF A CLOSED BRACH WOULD ONLY ВВ CONSIDERED IF A "3" GRADE OR BETTER WERE CONSISTENTLY OBTAINED.
AT PRESENT, TWO BATHING BEACHES, NAMELY CASTLE PEAK AND OLD CAFETERIA, HAVE BEEN DECLARED UNSUITABLE FOR SWIMMING PURPOSES, BASED ON THE WATER QUALITY DURING PAST SEASONS.
THEY ARE POLLUTED BY FAECAL WASTES AND FAIL TO ACHIEVE CONSISTENTLY THE HONG KONG STANDARDS. THE PUBLIC ARE ADVISED NOT ΤΟ SWIM IN THE WATER AT THESE TWO BEACHES.
IN ADDITION, ROCKY BAY BEACH HAS BEEN CLOSED FOR SWIMMING PURPOSES BY THE URBAN COUNCIL. THESE THREE BEACHES ARE IDENTIFIED BY AN "X" IN THE FOLLOWING LIST.
THE GRADES ON THE
BACTERIOLOGICAL WATER QUALITY OF VARIOUS
BEACHES IN HONG KONG AS AT TODAY ARE LISTED BELOW:
/BEACH
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BRACH
HONG KONG SOUTH