12
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THURSDAY, MAY 19, 1988
GRADING OF BEACH WATER QUALITY ANNOUNCED
* * * *
OF
THE ENVIRONMENTAL PROTECTION DEPARTMENT (EPD) TODAY
WATER QUALITY THE BACTERIAL ON ANNOUNCED GRADES BEACHES IN HONG KONG.
THE PURPOSE OF THE GRADING SYSTEM IS THE GENERAL PUBLIC REGULARLY ABOUT THE STATE AT VARIOUS BEACHES.
(THURSDAY)
ALL BATHING
ΤΟ INFORM SWIMMERS AND OF BACTERIAL POLLUTION
AN EPD SPOKESMAN SAID THAT STARTING THIS WEEK THE GRADING
DURING THE BATHING INTERVALS
SEASON, BE ANNOUNCED AT BIWEEKLY
BEACH WHICH
ARE WATERS COINCIDE WITH THE FREQUENCY SAMPLED.
WILL ΤΟ
AT
USUALLY
THE GRADING IS BASED ON THE E. COLI DATA OBTAINED IN ITS ROUTINE BEACH WATER QUALITY MONITORING PROGRAMME.
BY THE EPD
АНЕ GRADING
BASED ON THE MEDIAN THE R. COLI DATA USED FOR
OBTAINED OVER A TWO AND A VALUES OF THE MOST RECENT FIVE RESULTS, HALF MONTH PERIOD ACCORDING TO THE USUAL SAMPLING FREQUENCY.
THIS REPRESENTS A BEACHES IN MOST
THE GRADES FOR SOME BEACHES MAY FLUCTUATE. NATURAL FLUCTUATION IN THE BACTERIAL QUALITY OF THE CASES, AS RAIN AND TIDES BRING MORE OR LESS POLLUTION TO THE AREAS.
SWIMMING
NEVERTHELESS, THE GRADES GIVE A GOOD
OF
BACTERIAL WATER QUALITY
BEACHES, AND
GENERAL PICTURE OF THE FORM THE BEST AVAILABLE
FORECAST OF BEACH WATER QUALITY IN THE IMMEDIATE FUTURE.
THE SYSTEM FOR GRADING BEACH WATER QUALITY IS AS FOLLOWS:
'A'
FI
GRADE
INDICATES
THE
MFD1AN
E. COLI
15 COUNT 0-99 PER 100 MILLILITRES, AND THE WATER QUALITY IS GOOD.
BETWEEN
B 100-999 ACCEPTABLE.
GRADE INDICATES
THE
PER
MILLILITRES,
MEDIAN
AND
E. COL1 COUNT
WATER THE
IS BETWEEN QUALITY IS
"C" GRADE INDICATES THE MEDIAN E. COLI COUNT IS 1,000 OR MORE PER 100 MILLILITRES, AND THE WATER QUALITY IS POOR.
BEACH TO SWIMMERS IS
IS ACCEPTABLE.
THE DECISION WHETHER OR NOT TO CLOSE A BASED ON A JUDGEMENT OF WHAT DEGREF OF POLLUTION
↑
IF
CONSIDERED GRADING OCCURRED
NORMALLY A RECOMMENDATION ON CLOSURE WOULD ONLY BE
COUNCIL. REGIONAL THE BY THE URBAN OR REPEATEDLY,
ONLY BE OBTAINED.
SIMILARLY A RECOMMENDAT LON TO
t
GRADE A "B" IF CONSIDERED
REOPEN
OR
A BETTER
CLOSED BEACH WOULD
WERE
CONSISTENTLY
/AT PRESENT,