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79
The following is a copy of the report received on a sample submitted
for chemical analysis.
CHEMICAL RESULTS in parts per million.
Appearance Bright and Clear.
Odour Hydrocarbon similar to
exhaust fumes.
Reaction (pH) 7.5
Parts per million
Dissolved solids 409.2
Suspended solids Nil
Free Chlorine Not detected
Chlorion 39.2
Sulphates (as S04) 47.7
Calcium (as Ca) 102.0
Free and Saline Nitrogen Nil
Albuminoid Nitrogen Nil
Nitrate Nitrogen 4.4
Nitrite Nitrogen Nil
Total Hardness 280.0
B.O.D. (5 days) 0.3
Permanganate Value 0.51
Lead (Pb) 0.10
Copper (Cu) Nil
Zinc (Zn) Nil
The odour is possibly a post sampling contamination since no
complaint appears to have been made. Apart from the odour the water
was perfectly satisfactory.
SWIMMING BATHS
There are three Council controlled swimming baths in the district
namely—one in Central Harrow, one in Wealdstone and the third is an
indoor bath at Hatch End.
The water in each bath is filtered and chlorinated. Eighteen samples
were taken during the year, all were reported as satisfactory.
In addition daily tests were made by the Baths Superintendent.
There are also baths at the following schools:
Aylward Primary School, Pangbourne Drive Indoor—heated.
Blackwell Secondary School, Headstone Lane Open Air—heated.
Cannon Lane Primary School, Cannonbury Covered Open Air—
Avenue heated.
Priestmead Primary School, Hartford Avenue Open Air—heated.