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Sewer Rat Control (Scheme N.S. 11).
The following scheme of initial treatment of sewers was carried
out during the year and was highly successful. The final maintenance
treatment will be executed in the early part of 1947.
Survey and Preparation:—
(i) Mapping of all manholes in area.
(ii) Preliminary loosening of manhole covers prior to treatment.
(iii) Treatment Squads:
Two squads, each consisting of three men, to be
employed.
Treatment :—
Part 1 Treatment to be commenced on September ltfth, 1946.
l'rebaiting with damp sausage rusk (4 oz. per inspection chamber)
will be carried out on two consecutive days followed by poison baiting
on the third day with damp sausage rusk plus 2½% zinc phosphide
(8 oz. for complete take and 4 oz. for partial take).
Two separate sections will therefore be dealt with by each squad
per week, and with each section averaging at least 70 manholes, all
manholes in the area will be treated by Saturday, October 12th, 1946.
Part II Treatment will commence on October 14th, 1946.
Treatment to be on the same lines as Part I (omitting very large
areas showing no take in Part I) but baiting to be carried out with
bread mash and poisoning with 10% arsenious oxide.
Maintenance Treatment:—
One maintenance treatment will be commenced on February 10th,
1947—to consist of one poisoning campaign only with sausage rusk
and zinc phosphide on the same lines as Part I of the Initial Treatment.
Records:—
Recording of baiting to be made on the Ministry of Food Sewer
Forms 5 and 6, but no recording will be made on the 4th day in relation
to Poison bait takes or number of bodies seen.
Smoke Abatement.
Five complaints were received during the year and dealt with.
Shops Act 1912—1936.
There were 588 shop premises on the register, to which 450 inspections
were made. Informal action was necessary regarding
infringements in two cases.
Section 10 (Health and Comfort).
It was necessary to take action in two cases for the provision of
sanitary accommodation.
Offices.
Offices were inspected on 52 occasions, but no action was necessary.
Swimming Baths.
The one privately owned swimming bath was closed throughout
the year.
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