[Ord. No. 2005-78]
The City Council of the City of Bloomington
therefore declares that the purpose of this ordinance is to safeguard
persons, protect property, prevent damage to the environment, and
promote the public welfare by guiding, regulating and controlling
the design, construction, use and maintenance of any development or
other activity which disturbs or breaks the topsoil or otherwise results
in the movement of earth on land situated in the City of Bloomington.
It is the intention of this ordinance that the delivery of sediment
from sites affected by land disturbing activities be limited, as closely
as practicable, to that which would have occurred if the land had
been left in its natural undisturbed state.
[Ord. No. 2005-78]
It is the objective of this ordinance to control soil erosion and sedimentation caused by development activities, including clearing, grading, stripping, excavating, and filling of land, in the City of Bloomington. Measures taken to control soil erosion and off-site sediment runoff shall be adequate to assure that sediment is not transported from the site by a storm event of five year frequency or less. The following principles shall apply to all development activities within the City of Bloomington and to the preparation of the submissions required under §
24-603 of this ordinance:
A. Development shall be related to the topography
and soils of the site so as to create the least potential for erosion.
Areas of steep slopes where high cuts and fills may be required should
be avoided wherever possible, and natural contours should be followed
as closely as possible.
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B. Natural vegetation should be retained and
protected wherever possible. Areas immediately adjacent to natural
watercourses, lakes, ponds, and wetlands should be left undisturbed
wherever possible. Temporary crossings of watercourses, when permitted,
must include appropriate stabilization measures.
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C. Special precautions shall be taken to prevent
damages resultant from any necessary development activity within or
adjacent to any stream, lake, pond, or wetland. Preventative measures
shall reflect the sensitivity of these areas to erosion and sedimentation.
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D. The smallest practical area of land shall
be exposed for the shortest practical time during development.
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E. Sediment basins or traps, filter barriers,
diversions, and any other appropriate sediment or runoff control measures
shall be installed prior to site clearing and grading and maintained
to remove sediment from run-off waters from land undergoing development.
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F. The selection of erosion and sedimentation
control measures shall be based on assessment of the probable frequency
of climatic and other events likely to contribute to erosion, and
on evaluation of the risks, costs, and benefits involved.
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G. In the design of erosion control facilities
and practices, aesthetics and the requirements of continuing maintenance
shall be considered.
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H. Provisions shall be made to accommodate
the increased run-off caused by changed soil and surface conditions
during and after development. Drainage ways shall be designed so that
their final gradients and the resultant velocities and rates of discharge
will not create additional erosion on-site or off-site and in a manner
which will not cause flooding or other hardships off-site from the
site.
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I. Permanent vegetation and structures shall
be installed and functional as soon as practical during development.
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J. Those areas being converted from agricultural
purposes to other land uses shall be vegetated with an appropriate
protective cover prior to development. The protective cover shall
be properly replaced and maintained in accordance with all other applicable
local, State, and national codes/laws during site development until
the permanent vegetation and structures have become functional.
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K. All waste generated as a result of site
development activity shall be properly disposed of in an approved
manner and shall be prevented from being carried off the site by either
wind or water. Wastes generated from the placement of concrete, asphalt
or similar materials will be properly controlled such that no sediment
from said items will be allowed to enter the sewer systems, water
ways or other bodies of water. The Developer, Owner or their agent
shall provide details regarding the locations of appropriate washout
areas prior to the start of any work involving said items and shall
be responsible for ensuring the wastes resulting from usage of said
items are disposed of in an approved manner.
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L. All construction sites shall provide measures
to prevent sediment from being tracked onto public or private roadways.
Any sediment tracked onto public or private roadways shall be removed
as soon as possible but not later than the end of the work day during
which said sediment is tracked onto the public or private roadway.
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M. All construction sites or additions to
subdivisions approved by the City Council and under construction at
the time of passage of this ordinance must provide the City of Bloomington
with a copy of the Stormwater Pollution Prevention Plan created by
the developer, or their representative, per State and/or Federal Regulations
regarding National Pollutant Discharge Elimination System permits.
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N. All developments, subdivisions, or other
construction sites approved by the City Council after the passage
of this ordinance which are required by State or Federal law to create
and maintain a Stormwater Pollution Prevention Plan shall submit said
plan to the Public Works Department prior to any work being performed.
The Stormwater Pollution Prevention Plan shall be maintained per Federal
and State regulations. Any revisions to the Stormwater Pollution Prevention
Plan shall be provided to the City within three working days of their
implementation. All inspection reports and other reports required
by Federal or State law shall be maintained per Federal and State
laws and provided to the Public Works Department upon demand for said
items.
[Ord. No. 2018-93]
O. All construction sites or additions to
subdivisions approved by the City Council under construction at the
time of passage of this ordinance must comply with the Stormwater
Pollution Prevention Plan submitted by the developer, or their representative,
per State and/or Federal Regulations regarding National Pollutant
Discharge Elimination System permits. The owner, builder or their
representative should contact the developer to obtain a copy of the
Stormwater Pollution Prevention Plan, determine what requirements
are set forth in the Stormwater Pollution Prevention Plan and implement
said measures. The owner, builder or their representative shall provide
the City with an Erosion Control Plan outlining the erosion and sediment
control measures to be used on their lot. The City reserves the right
to require further erosion and sediment control measures on a lot
by lot basis.
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