View report page

62
63
Table 1. Particulars of the Bacteria Beds.
No.
Name of town or district.
Nature
of
installation.
Number
of beds.
Distinctive number
or name of each bed.
Average or
working area
of the beds.
Measurement of the beds.
Depth of
the beds.
Material and size of the material of
which the beds are composed.
Thickness of
each layer
of material,
arranged in their
order in the
beds,
from the top
downwards.
Method of under-drainirg the beds.
Actual
or estimated cost of
making the beds.
Actual or
estimated cost per acre
of making the beds.
Cost of treating
sewage
per million gallons.
At top.
At bottom.
P.—Permanent.
T.—Temporary.
Square feet.
Feet.
Feet.
Feet.
11
Burslem
T. P.
9
Primary
144,000
(total)
...
...
3
Pottery refuse, ½ inch to
1½ inch mesh
£
s.
d.
£
s.
d.
£
s.
d.
Secondary
...
...
...
3
Tertiary
...
•••
...
3
Pottery refuse, ½ inch to
1 inch mesh
12
Bury
P.
6
...
8,100
45 x 30
45 x 30
3
Coke 5/8 inch to 1½
Covered channels in the concrete
bottoms of the tanks packed around
with coarser material
2,740
-
-
6
...
8,100
(totals)
45 x SO
45 x 30
3
Cinders inch mesh
(Estimated cost of
extensions now
being made, exclusive
of filling.)
13
Cambridge
...
2
...
9,800
(total)
...
(8,700
superficial
feet)
10
Clinkers, 2 inch to 3/4 inch
6 feet
„ 5/8 inch to 1/3 inch
2 feet
„ above 2 inches
2 feet
14
Carlisle
P.
4
1, 2, 3, 4
5,400
(each)
120 x 45
120 x 45
4
Sandstone, 5 inch to 1
inch mesh
Not in layers
Not underdrained.
2,550
-
-
5,100
-
-
15
Croydon
P.
6
...
5,140
Irregular
3.75
Coarse burnt clay ballast
1 inch to 3 inch mesh
All the same
size
3 inch agricultural drain pipes, 5
feet apart, leading to central drain
2,600
(about)
-
-
3,660
-
-
16
Darwen
P.
5
• ••
...
49 x 24
...
3.5
Sand, 1/26 inch to 1/16 inch
mesh
6 inch
Channels in the concrete floors of
the beds, covered with stone flags
Hard vitrified clinker
3 feet
17
Epsom
...
6
Primary
...
...
...
3
1½ inch mesh
Secondary
½ inch mesh