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79
and 11.0 p.m. I believe however that the principal portion
of this rainfall occurred considerably within that period of
time.
Result of storm
on the Low
level portions .
of the Parish
and Metropolis
geuerally.
The above quoted rainfall, I need not say, was
unprecedented, and its immediate result was disastrous
in the low lying portions of the Parish,
to properties having basements, the very rapid
accumulation of water in the Sewers caused the flood level
to rise even to the surface of the road in some instances,
this being several feet above the level of the Sewers and
the basement stories. The flood level spread of course
throughout the Parish, blocking up the subsidiary local
Sewers, and hence it follows blocked up the course of the
surface and house drainage also, and the latter being driven
back produced unsanitary effects within the houses.
On the whole our local Sewers sustained this unusual
pressure satisfactorily, inasmuch that on the abatement of
the storm, the pent-up sewerage quickly discharged itself,
and with the exception of a fracture of a portion of the
Pipe Sewer in Camberwell Grove, I have no special results
to announce.
So much for the low level sewerage, the disposal of which,
I may remark, is dependent upon the storm outfalls, and
pumping arrangements of the Metropolitan Board of
Works.
Mid Level
Metropolitan
Sewers.
The Main Metropolitan Sewer which intercepts
the mid portion of the upper drainage of the
Parish, was in like manner overcharged, especially at Rye
Lane, by Hanover Street, and at Albert Road, &c.; it can