THURSDAY, AUGUST 13, 1987
7
GRADING OF BEACH WATER QUALITY
* * *
THE ENVIRONMENTAL PROTECTION DEPARTMENT (EPD) TODAY (THURSDAY) ANNOUNCED FOR THE SECOND TIME, GRADES ON THE BACTERIAL WATER QUALITY OF ALL BATHING BEACHES IN HONG KONG.
THE FIRST ANNOUNCEMENT WAS MADE TWO WEEKS AGO.
THE GRADING IS BASED ON THE E. COLI DATA OBTAINED BY EPD IN ITS ROUTINE BEACH WATER QUALITY MONITORING PROGRAMME.
THE E. COLI DATA USED FOR GRADING ARE THE AVERAGE (OR MORE EXACTLY, MEDIAN) VALUES OF THE MOST RECENT FIVE RESULTS, OBTAINED OVER A TWO-AND-A-HALF-MONTH PERIOD ACCORDING ΤΟ THE USUAL SAMPLING FREQUENCY. ALTHOUGH THE GRADES FOR SOME BEACHES MAY FLUCTUATE, THEY GIVE A GENERAL PICTURE OF THE BACTERIAL WATER QUALITY OF THE BEACHES AND FORM THE BEST AVAILABLE FORECAST OF THE BEACH WATER QUALITY IN THE IMMEDIATE FUTURE.
THE SYSTEM FOR GRADING BEACH WATER QUALITY IS AS BELOW:
A GRADE INDICATES THE MEDIAN E. COLI COUNT IS BETWEEN ZERO AND 99 PER 100 MILLILITRES AND THE WATER QUALITY IS GOOD.
B GRADE INDICATES THE MEDIAN E. COLI COUNT IS BETWEEN 100-999 PER 100 MILLILITRES AND THE WATER QUALITY IS ACCEPTABLE.
C GRADE INDICATES THE MEDIAN E. COLI COUNT IS 1,000 OR MORE PER 100 MILLILITRES AND THE WATER QUALITY IS POOR.
THE GRADES ON THE BACTERIAL WATER QUALITY OF VARIOUS BEACHES IN HONG KONG AS AT TODAY AND TWO WEEKS AGO ARE LISTED BELOW:
BEACH
HONG KONG SOUTH
LAST GRADING
PRESENT GRADING
AS AT JULY 30
AS AT AUGUST 13
BIG WAVE BAY
A
A
CHUNG HOM KOK
B
C
DEEP WATER BAY
B
A
HAIRPIN
A
A
MIDDLE BAY
B
B
/REPULSE BAY