The Ypsilanti daily press., 1945-02-10
Subdivision

Continued from Page One)
Gated more than so feet from
sources OF possible contamination
such as seepage, pits, cess-pools,
privles. barnyards, septic tanks.
subsurface disposal systems, coun-
ty drains and other sources Of con
tamination. Buried or unexposed
sewers or pipes through which
sewage may back up, shall not be
located within 80 feet of any cas-
ing or suction pipe. When such
sewers or pipes are located within
the 80 to 50 feet area they shall he
constructed OF extra heavy cast
iron soil pipe or cast iron water
pipe with lead joints tested for
water tightness. Such pipes, when
exposed, and accessible for inspec-
tion NAV be allowed within 80 feet
but not less than 10 feet of a well,
spring. water suction line, or other
drinking water structure.-.Allw wells
shall be SO located that possibilities
of flooding are reduced to a mini
mum. The area Immediately ada
cent to the well shall be mounded
up so that the surface water is di-
verted away from the well casing.
(b) Minimum depth All wells
shall be at least % feet in depth
unless an impervious layer of clay
12 inches deep shall be placed on
the surface OF the ground within
a radius OF 10 feet of the casing or
suction pipe Of the well No we'll
shall be less than 10 feet in depth.
(c) Construction
Q) Platform or Cover-ln hand
pump installations the well top or
platform shall be a water tight re-
inforced concrete slab OF a mini
mum thickness OF four inches, ex-
tending at least two feet from the
well casing In all directions. The
slab shall rest on compact earth.
The concrete shall be sloped from
the well castings TO the edges OF the
slab, shall rest on compact earth.
outer edges shall be four inches
above the surrounding ground sur
face.
GU Pits and Pump Rooms Well
heads, well castings, pumps, pump
ing machinery or suction pipes
shall not be located In any pit.
room or space extending below
ground level or in any room or
space above ground which Is wall
ed In or otherwise enclosed unless
II has free drainage by gravity or
by mechanical means to the sur.
face Of the ground Pipes to ac.
conplish this drainage by gravity
How shall be cast iron with lead
ed joints and shall not be connect.
ed to sanitary sewer or TO pines
carrying sewage. These pipes shall
discharge TO the ground surface
only at an elevation above tho
highest known flood stage. The
cast iron pipe shall be carried TO a
point at least four feet outside the
basement or pit walls and con.
nected 10 other suitable mines
which discharge at least 30 feet
from any well, spring, water.suc.
ton line, or other drinking water
structure.
All frost pits shall be drajned
by gravity to the ground surface
at an elevation above the higbost
known flood stage. All seep-holes
shai be at point at least ono
loot above the floor OF the fros,
pit. '0S'
Well pits shall be constructed n,
reinforced concrete or concrota
DIock treated with waterproofIng
material applied to the outside q,
the pit and shall have a relnforcod
concrete floor and a reinforced
concrete platform. All pits shan
nave manhole at least Is incboa
IN diameter and so constructed
.hat surface water cannot Ieak
into the pit. 'eSA
Regulations in the cons,r,o,io,
or outside toilets specify a nj, a,
ieast four and half feet deem win
a solid back. platform and sast
D,'iIt D., over and around the pit
Zero should be no danger Of drain,
age INTO water supply The seat
platform tfloo) and back is tho
nam concern Of the health denor,
meht since without these safe.
guards flies constitute a serious
problem. 1'