XN000022-1994-08-18 — Page 11

10

THURSDAY, AUGUST 18, 1994

THE

THIS THE GRADING OF SOME BEACHES MAY VARY DURING THE SUMMER. REPRESENTS A NATURAL FLUCTUATION IN

BACTERIOLOGICAL QUALITY OF

BRING

OR BATHING WATER

LESS IN MOST CASES, AS RAIN AND TIDES POLLUTION TO THE BEACHES.

MORE

BEST

HOWEVER, THE GRADES GIVE A GOOD GENERAL PICTURE OF THE WATER QUALITY AT BATHING BEACHES AT THE TIME OF REPORTING AND FORM THE AVAILABLE FORECAST FOR THE IMMEDIATE FUTURE.

"BEACHES WITH

HIGHLY DEVELOPED HINTERLANDS ARE LIKELY TO MORE POLLUTED THAN THE GRADES SUGGEST DURING AND AFTER HEAVY RAIN.

BE

AFTER

"BATHERS SHOULD AVOID SUCH BEACHES FOR TWO OR THREE DAYS A STORM, LONGER IF THE WEATHER REMAINS OVERCAST OR SHORTER IF THERE IS STRONG SUNSHINE, THE SPOKESMAN SAID.

THE SYSTEM FOR GRADING BEACH WATER QUALITY IS:

*

THE E. AT EACH

GRADE "1" INDICATES THAT THE WATER QUALITY IS GOOD. COLI COUNT IS NO MORE THAN 24 PER 100 MILLILITRES BEACH SO GRADED, AND THE EXPECTED RISK OF MINOR ILLNESS SWIMMERS IS UNDETECTABLE.

TO

THE E.

EACH NO MORE

GRADE "2" INDICATES THAT THE WATER QUALITY IS FAIR. COLI COUNT IS NO MORE THAN 180 PER 100 MILLILITRES AT BEACH SO GRADED, AND THE EXPECTED HEALTH RISK IS THAN 10 CASES OF MINOR ILLNESS PER 1,000 SWIMMERS.

THE E.

EACH

GRADE "3" INDICATES THAT THE WATER QUALITY IS POOR. COLI COUNT IS NO MORE THAN 610 PER 100 MILLILITRES AT

NO MORE BEACH So GRADED, AND THE EXPECTED HEALTH RISK IS THAN 15 CASES OF MINOR ILLNESS PER 1,000 SWIMMERS.

GRADE "4" INDICATES THAT THE WATER

QUALITY IS VERY

POOR.

THE E. COLI COUNT IS MORE THAN 610 PER 100 MILLILITRES AT MORE EACH BEACH SO GRADED, AND THE EXPECTED HEALTH RISK IS THAN 15 CASES OF MINOR ILLNESS PER 1,000 SWIMMERS.

THE DECISION ON WHETHER OR NOT TO CLOSE A BEACH TO SWIMMERS BASED ON A JUDGMENT OF WHAT DEGREE OF POLLUTION IS ACCEPTABLE.

NORMALLY,

IS

BY

SO

CONSIDERED THE CLOSURE OF A BEACH WOULD ONLY BE THE URBAN OR REGIONAL COUNCILS IF A GRADE "4" OCCURRED REPEATEDLY, THAT THE AVERAGE HEALTH RISK OVER THE BATHING SEASON EXCEEDED 15 CASES PER 1,000 SWIMMERS.

-

—

J

OLD

TO

ON

CASTLE PEAK, ANGLERS* AT PRESENT, FOUR GAZETTED BEACHES

THE ARE CLOSED TO SWIMMERS.

DECISION CAFETERIA AND ROCKY BAY CLOSE THE BEACHES HAS BEEN MADE BY THE REGIONAL AND URBAN COUNCILS THE BASIS OF BEACH WATER QUALITY MONITORING DATA FOR 1993.

AT THE

THE PUBLIC IS ADVISED NOT TO SWIM IDENTIFIED BY AN "X" IN THE FOLLOWING LIST.

BEACHES. THEY

ARE

/THE GRADES