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In the Rainham area the industrial discharge
causing high ammoniacal content in the local
watercourse at Ferry Lane ceased early in the
year and an improvement in the quality of the
stream water was noted This trade effluent
discharge will be resumed in 1973, but provision
will be made for treatment prior to discharge"
Water Supply
I am indebted to the Essex Water Company for the
following information regarding the water supply to the
Borough
"The water supply of the whole of your Area has
been satisfactory in quality and quantity
No action has been necessary in respect of any
form of contamination The number of dwelling
houses supplied as at 31st December, 1972, was
83,540 and the population, as obtained from the
Registrar General was 247,130 The number of
houses supplied by stand-pipe is not known for
certain but the total is insignificant
The Company does not make frequent fluorine
determinations, but on the basis of past results
the fluorine content of the major sources of river
derived water is put at 0.25 p pm The sources
serving the London Borough of Havering are:-
North Essex Treatment Works (river supply)
Hanningfield Treatment Works (river supply)
Chigwell Row Treatment Works (river supply)
Dagenham Well Station, NewRoad, Dagenham"
Twenty-six samples were taken by the Health Department
from the main supply during the year of which ten were submitted
for chemical and sixteen for bacteriological examination
In each case a satisfactory report was received
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