[R.O. 2012 §705.110; CC 1979 §26-14.1; Ord. No. A-4065 §1, 6-21-1979; Ord.
No. A-4562 §1, 8-9-1984]
For the purposes of this Article, the following words and phrases
shall have the meanings respectively ascribed to them by this Section:
Any person, firm, corporation or other association of persons
who shall make application to the City to extend any sewer main or
lateral, and any person, firm, corporation or other association of
persons who shall make application to the City to tap any main and
become a user.
Only that portion of pipe between the tap and the building
to be served.
All pipes of whatever construction heretofore or hereafter
constructed and through which the City shall furnish sanitary sewer
service to taps and service lines of users, but such term shall not
include taps and service lines.
The extension to any existing sanitary sewer main for the
use of a single user, and to which no other taps or service lines
are to be connected.
Only the coupler by which the service line shall be attached
to the sewer main.
Any person, firm, corporation or other association of persons
discharging water and waste material into the sanitary sewer system
of the City for personal, domestic or industrial use.
[R.O. 2012 §705.120; CC 1979 §26-14.2; Ord. No. A-4065 §2, 6-21-1979; Ord.
No. A-4562 §2, 8-9-1984]
The provisions of this Article shall be considered a part of
all contracts between any applicant or user and the City providing
for the extension of sewer mains or laterals.
[R.O. 2012 §705.130; CC 1979 §26-14.3; Ord. No. A-4065 §3, 6-21-1979; Ord.
No. A-4562 §3, 8-9-1984]
From and after the effective date of this Article, all sewer
mains or laterals constructed for attachment to the City sewer system
shall be eight (8) inches in diameter and made of vitrified clay pipe
with joints designed to minimize infiltration and to prevent the entrance
of roots throughout the life of the system; provided, that if the
Superintendent of Utilities shall state in the cost estimate, as hereinafter
provided, that it is necessary and in the best interest of the welfare
of the residents of the City that a larger main be constructed, such
cost estimate shall include the additional cost of construction of
such larger main.
[R.O. 2012 §705.140; CC 1979 §26-14.4; Ord. No. A-4065 §4, 6-21-1979; Ord.
No. A-4334 §1, 2-10-1982; Ord. No. A-4562 §4, 8-9-1984]
Any applicant desiring to extend any existing sewer main shall
make written application therefor to the City utilities office. Such
application shall state the name and address of the applicant, the
proposed use of the new sewer line and the location, length, depth
and percent of grade of such proposed extension. Such application
shall be accompanied by a plat of the addition, subdivision or lot
to be served and the plans for such extension, which shall have been
approved by the State Department of Natural Resources, when required,
and an authorized representative of the City.
[R.O. 2012 §705.150; CC 1979 §26-14.5; Ord. No. A-4065 §5, 6-21-1979; Ord.
No. A-4562 §5, 8-9-1984]
Upon completion of any sewer line extension, such extension
shall become and remain the sole property of the City.
[R.O. 2012 §705.160; CC 1979 §26-14.6; Ord. No. A-4065 §6, 6-21-1979; Ord.
No. A-4562 §6, 8-9-1984]
All contracts let for the extension of a sewer line shall be
let to such contractor as the City and the applicant may agree upon
or, if no such agreement is made, to the lowest and best qualified
bidder therefor.
[R.O. 2012 §705.170; CC 1979 §26-14.7; Ord. No. A-4065 §7, 6-21-1979; Ord.
No. A-4562 §7, 8-9-1984]
All extensions of sewer lines shall be located in streets where
possible; however, roadways, alleys or other easements existing in
favor of the City may be used. Where necessary, rights-of-way or easements
shall be provided to the City at no cost.
[R.O. 2012 §705.180; CC 1979 §26-14.8; Ord. No. A-4065 §8, 6-21-1979; Ord.
No. A-4562 §8, 8-9-1984]
All streets, roads, highways or other public thoroughfares which
are closed to traffic while constructing or repairing sewer lines
shall be protected by means of effective barricades, on which shall
be placed acceptable warning signs. Barricades shall also be located
at the nearest intersecting public highway or street on each side
of the blocked section. All open trenches and other excavations shall
be provided with suitable barriers, signs and lights to the extent
that adequate protection is provided to the public. Obstructions,
such as material piles and equipment, shall be provided with similar
warning lights and signs. All barricades and obstructions shall be
illuminated by means of warning lights at night. All lights used for
this purpose shall be kept burning from sunset to sunrise. Materials
stored upon or alongside public streets and highways shall be so placed,
and the work at all times shall be so conducted, as to cause the minimum
obstruction and inconvenience to the traveling public. All barricades
and light expense will be paid by the contractor.
[R.O. 2012 §705.190; CC 1979 §26-14.9; Ord. No. A-4065 §9, 6-21-1979; Ord.
No. A-4562 §9, 8-9-1984]
All excavation in the streets, highways or alleys shall be done
only after the street, highway or alley surface that contains blacktop
or concrete is scored on each side of the work for the total distance
of the excavation. The scoring shall be limited to and shall not exceed
six (6) inches on each side of the width of the excavation and shall
be only wide enough to properly perform the necessary work.
[R.O. 2012 §705.200; CC 1979 §26-14.10; Ord. No. A-4065 §10, 6-21-1979; Ord.
No. A-4562 §10, 8-9-1984]
A.
The
contractor shall furnish competent personnel with work tools, stakes
and materials in the establishment of base lines, benchmarks and other
basic reference media needed to control the location and elevation
of work, the sewer grade to be controlled as near as possible within
the range of .40% to 2.5% on all services and a minimum of two and
two-tenths (2.2) feet per second flow on sewer mains and laterals.
Thereafter, the contractor shall carefully preserve such vertical
and horizontal control and shall make and be responsible for all measurements
from it to the work to be done.
B.
The
City's representative will check "as built" measurements for conformance
to drawings and will check pipe alignment and lamp each section of
sewer line. The contractor shall reconstruct or correct the same as
may be necessary.
[R.O. 2012 §705.210; CC 1979 §26-14.11; Ord. No. A-4065 §11, 6-21-1979; Ord.
No. A-4562 §11, 8-9-1984]
A.
Upon
completion of work, the contractor shall remove all equipment, material,
excess excavated material, etc., and smooth and regrade the area to
conform to existing grade to the satisfaction of the owner and the
City representative. All areas are to be reseeded or repaved as may
be necessary.
B.
To
compute the amount of repaving material, who pays and how much, the
square yards of surface measured shall be six (6) inches outside the
trench width and along the centerline of the pipe. For the purpose
of measurement for payment, all disturbed area shall be computed as
total area, and payment for this amount shall be deposited with the
City Collector by the contractor. After trench backfill with granular
material, the contractor shall maintain the surface of pavement grade
until the permanent pavement is replaced.
C.
All
asphalt or blacktop pavement, removed or damaged, shall be replaced
with four (4) inches of compacted base aggregate for subgrade and
two (2) inches of asphalt. All concrete pavements removed or damaged
shall be replaced with four (4) inches of compacted base aggregate
for subgrade and a six-inch thick concrete slab of class A concrete
reinforced with 0.25% steel by volume.
[R.O. 2012 §705.220; CC 1979 §26-14.12; Ord. No. A-4065 §12, 6-21-1979; Ord.
No. A-4562 §12, 8-9-1984]
A.
Manholes
shall be four (4) feet in diameter for twenty-one (21) inch and smaller
pipe and shall include the foundation, invert, precast sections, tapered
top section, manhole frame and cover and necessary steps.
B.
After
the manhole has been installed with proper invert channels in the
base and the mortar has thoroughly cured, but before backfilling is
started, the outside and interior surface of each manhole shall be
painted with one heavy coat of coal tar paint. Surfaces to receive
paint shall be dry.
C.
At
the option of the contractor, standard manholes shall be constructed
of precast concrete sections or cast-in-place concrete.
D.
Manholes
shall be installed at the end of each line, at all changes in grade,
size and alignment, at all intersections and at distances not greater
than four hundred (400) feet, except by written permission from the
Superintendent of Utilities.
E.
Drop
manholes shall be used for a sewer entering a manhole twelve (12)
inches or more above the manhole invert. Where the difference in elevation
between the incoming sewer and the manhole invert is less than twelve
(12) inches, the invert should be filled to prevent solids deposition.
Drop manholes should be constructed with outside drop connections.
Due to the unequal earth pressures that would result from the backfilling
operation in the vicinity of the manhole, the entire outside drop
connection shall be encased in concrete.
F.
The
flow channel through manholes shall/should be made to conform in shape
and slope to that of the sewer.
G.
Inlet
and outlet pipes shall be joined to the manhole with gasketed, flexible,
watertight connections or any watertight connection arrangement that
allows differential settlement of the pipe and manhole to take place.
[R.O. 2012 §705.230; CC 1979 §26-14.13; Ord. No. A-4065 §13, 6-21-1979; Ord.
No. A-4562 §13, 8-9-1984]
All fill material placed in structural fills or embankments
shall be uniformly compacted to not less than ninety-five percent
(95%) of the maximum density at optimum moisture content, unless otherwise
noted.
[R.O. 2012 §705.240; CC 1979 §26-14.14; Ord. No. A-4065 §14, 6-21-1979; Ord.
No. A-4562 §14, 8-9-1984]
A.
Trench
bottoms shall be accurately graded to provide uniform bearing and
support for the pipe barrel between bell holes. When the trench bottom
is of proper character, such as uncemented granular material or other
natural bedding material, and uniform shaping can be executed, foreign
bedding material will not be required, except as stated elsewhere.
When trench bottom materials will not allow uniform bearing for the
entire pipe length, the excavation shall be carried to a depth sufficient
to allow a depth of three (3) inches to six (6) inches for the bedding
material, as specified herein, to be placed under the pipe and to
extend upward to fifty percent (50%) of the pipe diameter. Foreign
bedding shall be five-eighths (5/8) inch or less crushed rock.
B.
Concrete
or well-graded granular material (bedding classes A, B or C, as described
in ASTM C12-74 or WPCP Map No. 9) shall be used for all rigid pipe;
provided, that the proper strength pipe is used with the specified
bedding to support the anticipated load.
C.
Concrete
or well-graded granular material, bedding class I, II or III, as described
in ASTM D2321-74, shall be used for all flexible pipe; provided, that
the proper strength pipe is used with the specified bedding to support
the anticipated load.
[R.O. 2012 §705.250; CC 1979 §26-14.15; Ord. No. A-4065 §15, 6-21-1979; Ord.
No. A-4562 §15, 8-9-1984]
From and after the effective date of this Article, all sewer
service lines constructed for attachment to the City sewer system
shall be of at least four (4) inch vitrified clay pipe, with joints
designed to minimize infiltration and to prevent the entrance of roots
throughout the life of the system, on all public property and easements
and by all means in areas of heavy traffic such as streets, alleys
and driveways.
[R.O. 2012 §705.260; CC 1979 §26-14.16; Ord. No. A-4562 §16, 8-9-1984]
A.
Flexible
type pipe may be used in other than public property, provided the
proper strength pipe is used with specified bedding to support the
anticipated load. The specified bedding is concrete or well-graded
granular material (class I, II or III as described in ASTM D2321-74).
B.
Deflection
tests shall be performed on all flexible pipe. The tests shall be
run not less than thirty (30) days after final backfill has been in
place. The deflection shall not exceed five percent (5%). The deflection
test is to be run using a rigid ball or mandrels or equivalent and
shall have diameters equal to ninety-five percent (95%) of the inside
diameter of the pipe. The tests shall be performed without mechanical
pulling devices. The flexible type pipe shall be of the design to
minimize infiltration and to prevent the entrance of roots throughout
the life of the system.
[R.O. 2012 §705.270; CC 1979 §26-14.17; Ord. No. A-4562 §17, 8-9-1984]
Leakage tests shall be made on all types of sewers. These tests
shall be made with low pressure air and shall be performed under the
following limitations:
The low pressure air test is conducted by plugging each opening
in the reach of pipe to be tested. One of the plugs provided must
have an inlet tap for connecting an air hose. After connecting the
air control equipment to the air hose, monitor the air pressure so
that the internal pressure does not exceed 5.0 PSIG. After reaching
4.0 PSIG, throttle the air supply to maintain 3.5 and 4.0 PSIG for
at least two (2) minutes in order to allow equilibrium. Decrease pressure
to 3.5 PSIG and begin timing. If the time in seconds for the air pressure
to drop to 2.5 PSIG is greater than the following chart, the pipe
is presumed to be free of defects:
|
Pipe Size
|
Time
| |
|---|---|---|
|
6 inches
|
2 minutes 55 seconds
| |
|
8 inches
|
3 minutes 57 seconds
| |
|
10 inches
|
4 minutes 43 seconds
| |
|
12 inches
|
5 minutes 40 seconds
| |
|
15 inches
|
7 minutes 5 seconds
| |
|
18 inches
|
8 minutes 30 seconds
| |
|
21 inches
|
9 minutes 50 seconds
| |
|
24 inches
|
11 minutes 20 seconds
| |
|
27 inches
|
12 minutes 45 seconds
| |
|
30 inches
|
14 minutes 10 seconds
| |
|
36 inches
|
17 minutes 00 seconds
| |
|
42 inches
|
19 minutes 50 seconds
| |
|
48 inches
|
22 minutes 40 seconds
|
[R.O. 2012 §705.280; CC 1979 §26-14.18; Ord. No. A-4562 §18, 8-9-1984]
In areas where ground water is known to exist, the contractor
shall install a one-half (½) inch capped pipe nipple approximately
ten (10) inches long, through the manhole wall on top of one of the
sewer lines entering the manhole. This shall be done at the time the
sewer line is installed. Immediately prior to the performance of the
line acceptance test, the ground water level shall be determined by
removing the pipe cap, blowing air through the pipe nipple to be sure
the nipple is clear and connecting a hose to the nipple. The hose
shall be raised vertically to determine water level. The height in
feet will then be divided by 2.31 to establish the pounds of pressure
that will be added to all readings.
[R.O. 2012 §705.290; CC 1979 §26-14.19; Ord. No. A-4562 §19, 8-9-1984]
When sewers are entering or crossing streams, drainage courses
or roadway ditches, the top of the pipe shall be at a sufficient depth
below the natural bottom of the stream or course bed to protect the
sewer line. In general, the following cover requirements must be met:
One (1) foot of cover is required where the sewer is located in rock;
three (3) feet of cover is required in other material; in major streams,
more than three (3) feet of cover may be required; in paved stream
channels, the top of the sewer line should be placed below the bottom
of the channel pavement. Any other channel variations or depth must
be approved in writing by the Superintendent of Utilities.
[R.O. 2012 §705.300; CC 1979 §26-14.20; Ord. No. A-4562 §20, 8-9-1984]
Sewers located along streams shall be located outside of the
stream bed and sufficiently removed therefrom to provide for future
possible stream widening and prevent pollution by siltation during
construction.
[R.O. 2012 §705.310; CC 1979 §26-14.21; Ord. No. A-4562 §21, 8-9-1984]
The sewer outfalls, manholes or other structures shall be so
located that they do not interfere with the free discharge of flood
flows of the stream.
[R.O. 2012 §705.320; CC 1979 §26-14.22; Ord. No. A-4562 §22, 8-9-1984]
Where trenches are dug in or across roadway ditches or other
watercourses, and the slope of the ditch exceeds one percent (1%),
suitable ditch checks shall be installed. Ditch checks may be of creosoted
lumber, stone or concrete. In any case the ditch checks shall extend
not less than two (2) feet below the original ditch or watercourse
bottom for the full bottom width and not less than eighteen (18) inches
into the side slopes thereof.
[R.O. 2012 §705.330; CC 1979 §26-14.23; Ord. No. A-4562 §23, 8-9-1984]
Sewers entering or crossing ditches or other watercourses shall
be constructed of ductile iron pipe with mechanical joints and shall
be so constructed that they will remain watertight and free from changes
in alignment or grade. Material used to backfill the trench shall
be stone, coarse aggregate, washed gravel or other materials which
will not cause siltation. These backfill materials maybe used after
proper bedding and pipecover. All crossings with ductile iron pipe
shall extend at least three (3) feet into the slope on each side of
the ditch or watercourse.
[R.O. 2012 §705.340; CC 1979 §26-14.24; Ord. No. A-4562 §24, 8-9-1984]
There shall be no connections between a public or private potable
water supply and a sewer or appurtenance which would permit the passage
of any sewage or polluted water into the potable supply. No waterpipe
shall pass through or come in contact with any part of a sewer manhole.
Sewers shall meet the requirements of 10 CSR60-2.010 with respect
to minimum distances from public water supply wells or other water
supply sources and structures.
[R.O. 2012 §705.350; CC 1979 §26-14.25; Ord. No. A-4562 §25, 8-9-1984]
Sewer mains shall be laid at least ten (10) feet horizontally
from any existing or proposed water main, and/or the water main must
be at least eighteen (18) inches above the top of the sewer. In cases
where it is not practical to maintain the above distances, a variance
may be granted in writing by the Superintendent of Utilities.
[R.O. 2012 §705.360; CC 1979 §26-14.26; Ord. No. A-4562 §26, 8-9-1984]
Any conditions not listed in this Article must meet all rules
and regulations of the State Department of Natural Resources and the
Federal Environmental Protection Agency. The Water Pollution Control
Federation Manual Practice #9 shall be followed relative to detailed
instructions for all sanitary and storm sewers.
