[R.O. 2011 § 510.200; R.O. 2009
§ 151.60; Ord. No. 02-175, 7-19-2002; Ord. No. 18-198, 9-4-2018]
Two (2) consequences of construction
and development are the increased runoff created by the changed properties
of the ground surface and the rate of discharge of this increased
runoff. These are both of great relevance to stormwater management.
The natural condition of the land before development is in relative
balance with the natural capacity of the receiving creeks. Normally,
the undeveloped conditions provide greater permeability and longer
times of concentration. By modification of the ground surface from
the irregular, pervious and vegetation-covered, the areas are changed
to more impervious, more quickly drained and, in some cases, denuded
of vegetation. It is the policy of the City to protect and promote
the public health, safety and general welfare. The management of stormwater
will reduce the erosion on land and creek channels, will reduce the
possibility of damage to public and private property, will assist
in the attainment and maintenance of water quality standards and will
preserve the environmental quality of the watercourses in the City.
[R.O. 2011 § 510.210; R.O. 2009
§ 151.61; Ord. No. 02-175, 7-19-2002; Ord. No. 18-198, 9-4-2018]
For the purposes of this Article,
the following terms, phrases, words and their derivations shall have
the meanings given herein.
2-YEAR PEAK FLOW
The peak rate of flow of water at a given point in a channel,
watercourse or conduit resulting from the 2-year storm.
2-YEAR STORM
Rainstorm of a specific duration having a fifty percent (50%)
probability of occurrence in any given year.
15-YEAR PEAK FLOW
The peak rate of flow of water at a given point in a channel,
watercourse or conduit resulting from the 15-year storm.
15-YEAR STORM
Rainstorm of a specific duration having a six and six hundred
sixty-seven thousandths percent (6.667%) probability of occurrence
in any given year.
25-YEAR FLOOD
A flood having a four percent (4%) probability of occurrence
in a given year.
25-YEAR PEAK FLOW
The peak rate of flow of water at a given point in a channel,
watercourse or conduit resulting from the 25-year storm.
25-YEAR STORM
Rainstorm of a specific duration having a four percent (4%)
probability of occurrence in an given year.
50-YEAR FLOOD
A flood having a two percent (2%) probability of occurrence
in a given year.
50-YEAR PEAK FLOW
The peak rate of flow of water at a given point in a channel,
watercourse or conduit resulting from the 50-year storm.
50-YEAR STORM
Rainstorm of a specific duration having a two percent (2%)
probability of occurrence in any given year.
100-YEAR FLOOD
A flood having a one percent (1%) probability of occurrence
in a given year.
100-YEAR PEAK FLOW
The peak rate of flow of water at a given point in a channel,
watercourse or conduit resulting from the 100-year storm.
100-YEAR STORM
Rainstorms of a specific duration having a one percent (1%)
probability of occurrence in any given year.
ALLOWABLE RELEASE RATE
The pre-development or existing condition peak flow corresponding
to a selected rainfall frequency event.
APPLICANT
The specific person applying for the permit for an approved
stormwater management system.
BASE FLOOD
The flood having a one percent (1%) probability of being
equaled or exceeded in any given year, i.e., the 100-year flood.
BOND
Any form of security for the completion or performance of
a stormwater management plan or the maintenance of drainage improvements,
including surety bond, collateral, property or instrument of credit,
or escrow deposit in an amount and form satisfactory to the Governing
Body.
DETENTION BASIN
Any manmade area or facility designed to detain (hold) stormwater
temporarily during and immediately after a runoff event.
DIFFERENTIAL RUNOFF
The difference between the calculated developed runoff rate
and the calculated pre-developed runoff rate.
DRAINAGE FACILITY
Any system of artificially constructed drains, including
open channels and sewers, used to convey stormwater, surface water
or groundwater either continuously or intermittently to natural watercourses.
FLOODPLAIN
A geographic area susceptible to periodic inundation from
the overflow of natural waterways during the base 100-year flood.
FLOODWAY
The channel of a river or other watercourse and the adjacent
land areas that must be reserved in order to discharge the base flood
without cumulatively increasing the water surface elevation more than
one (1) foot and so delineated in the Federal Emergency Management
Agency (FEMA) Flood Insurance Study.
FREEBOARD
The difference in elevation between the hydraulic grade line
elevation and:
1.
The inlet sill elevation; or
2.
The top of structure elevation; or
3.
The top of channel bank elevation;
or
4.
The top of wall elevation.
HYDRAULIC GRADE LINE
A line coinciding with the level of flowing water at any
given point along an open channel; or the level to which water would
rise in a vertical tube connected to any point along a pipe or closed
conduit flowing under pressure.
LOW SILL ELEVATION
The lowest finished floor elevation, basement window sill
elevation, or basement walk-out door threshold elevation, whichever
is lower, of any structure or building.
MAINTENANCE
The act of maintaining or preserving including, but not limited
to, operation construction and re-construction.
MSD
Metropolitan St. Louis Sewer District.
OUTFALL
The point location or structure where drainage discharges.
PERMIT
A permit granted by the City to a person to construct a stormwater
management system.
PERMITTEE
Any person to whom a permit has been granted by the City
under this Chapter.
PERSON
An individual, corporation, partnership and/or unincorporated
association of persons.
POST-DEVELOPED FLOW
The peak flow corresponding to a selected rainfall event
as a result of site conditions after development.
PRE-DEVELOPED FLOW
The amount of flow from an existing site prior to new development
or improvements as computed using the Rational Formula.
RATIONAL METHOD
An empirical formula for calculating peak rates of runoff
resulting from rainfall.
SITE
The area to be developed or improved.
SOIL CONSERVATION SERVICE METHOD
A technique for calculating stormwater runoff volume and
peak flow described in Soil Conservation Service (SCS) Technical Release
55.
STORMWATER MANAGEMENT PLAN
The drawings, computations, data, reports, etc., which identify
how stormwater runoff is to be handled.
STORMWATER MANAGEMENT SYSTEM
All means, natural or manmade, used for conducting stormwater
runoff to, through or from a drainage area to the point of outlet.
STORMWATER RUNOFF
Water that results from precipitation which is not absorbed
by the soil, evaporated into the atmosphere, or entrapped by ground
surface depressions and vegetation.
STORMWATER SEWER
A pipe or closed conduit that carries surface runoff and
subsurface waters.
STRUCTURE
Any object constructed above or below ground.
TR-55
See "soil conservation service method."
[R.O. 2011 § 510.220; R.O. 2009
§ 151.62; Ord. No. 02-175, 7-19-2002; Ord. No. 18-198, 9-4-2018]
No person shall uncover, make any
connection with or opening into, use, alter or disturb any public
or private storm sewer, stormwater facility or stormwater structure
without first obtaining a written permit from the Director of Engineering
or his/her designee. All plans for stormwater construction or alteration
shall be approved by the Director of Engineering or his/her designee
or the Director of Engineering or his/her designee's authorized agent
prior to the beginning of any such work. A permit application form
will be provided by the City and be made available through the Engineering
Department. The permit application shall be supplemented by plans,
specifications and other information as required in this Article or
by the Director of Engineering or his/her designee. A permit cannot
be issued without the completed application form, permit fees and
all the supplemental plans, specifications and other information as
required.
[R.O. 2011 § 510.230; R.O. 2009
§ 151.63; Ord. No. 02-175, 7-19-2002; Ord. No. 18-198, 9-4-2018]
A. The permit fee for storm sewers shall be a combination of the amounts stated in Section
150.030 for a storm sewer construction permit fee plus a storm sewer inspection fee for every three hundred (300) lineal feet of proposed storm sewer. This charge is not refundable.
[Ord. No. 22-167, 12-20-2022]
B. Upon approval of the final plans for any
stormwater management system, but before the issuance of any permits,
the Director of Engineering or his/her designee shall require the
applicant to post a performance bond, cash escrow, certified check,
or other acceptable form of performance security for the amount of
the work to be done pursuant to the approved stormwater management
plans. This performance security shall not be fully released by the
Director of Engineering or his/her designee except in conformance
with State Statutes. A one-year guarantee against defects in workmanship
will be required by the Director of Engineering or his/her designee
for any stormwater management system accepted by the City.
C. The Director of Engineering or his/her
designee shall establish the amount of the performance bond or escrow,
if any, required as part of the permit application.
[R.O. 2011 § 510.240; R.O. 2009
§ 151.64; Ord. No. 02-175, 7-19-2002; Ord. No. 18-198, 9-4-2018]
In advance of any planned storm sewer
work, the owner of the site or his/her agent shall cause to have submitted
preliminary construction plans on the project to the Director of Engineering
or his/her designee for review and comment. After approval of said
preliminary plans, the owner or his/her agent shall submit final plans,
specifications, calculations, all required additional information,
a permit application form, all bonds and/or escrows and the permit
fee to the Director of Engineering or his/her designee for approval.
These submitted materials will be reviewed for compliance with the
ordinances and standards of the City. Any and all errors or omissions
on any part of the submitted material shall be corrected by the owner
or the owner's agent prior to issuance of a permit for the work. A
separate excavation permit will be required for any portion of the
work within City rights-of-way.
[R.O. 2011 § 510.250; R.O. 2009
§ 151.65; Ord. No. 02-175, 7-19-2002; Ord. No. 18-198, 9-4-2018]
A. Only after review and approval by the Director
of Engineering or his/her designee of all the required documents as
detailed in this Article and payment of all fees, bonds and escrows,
a permit will be issued for the proposed work.
B. The Director of Engineering or his/her
designee may impose such conditions or requirements upon the issuance
of a permit as the Director of Engineering or his/her designee deems
necessary or proper to ensure the safety of the public and faithful
compliance with City ordinances and standards.
C. All appropriate approvals from the United
States Army Corps of Engineers and Missouri Department of Natural
Resources must be acquired and submitted to the Director of Engineering
or his/her designee prior to issuance of a stormwater permit.
[R.O. 2011 § 510.260; R.O. 2009
§ 151.66; Ord. No. 02-175, 7-19-2002; Ord. No. 18-198, 9-4-2018]
A permit issued under this Article
shall expire one (1) year from the date of issuance; except that the
Director of Engineering or his/her designee may, for due cause shown,
extend any permit for additional one-year periods after complete review
of all plans and examination of work accomplished and proposed; provided
application is made at least thirty (30) days prior to the expiration
date of such permit. In no case shall permit be extended if the provisions
of this Article have not been complied with.
[R.O. 2011 § 510.270; R.O. 2009
§ 151.67; Ord. No. 02-175, 7-19-2002; Ord. No. 04-194, 8-13-2004; Ord. No.
07-158, 6-8-2007; Ord. No. 18-198, 9-4-2018]
A. No owner of property regulated by this
Article shall permit stormwater to be discharged in any manner that
injures the property of adjacent property owners.
B. Detention basins shall be maintained by
the owner or owners of the property. No modifications can be made
to the facility without a permit from the City and, in some situations,
the Missouri Department of Natural Resources.
C. Beyond the scope of this Section, the Director
of Engineering shall maintain stormwater construction and design specifications
for the City. These stormwater construction and design specifications
shall be approved by the Board of Public Works and the City Council.
Once approved, the stormwater construction and design specifications
shall be followed by all persons planning or constructing any stormwater
management system within the City.
D. Development along natural watercourses
shall have residential lot lines, commercial or industrial improvements,
parking areas and driveways set back a minimum of twenty-five (25)
feet from the top of the existing stream bank. The section of land
between a natural watercourse and lot lines shall be designated as
common ground and drainage easement to be maintained by the trustees
of the subdivision within all types of residential developments. All
developments shall maintain a setback minimum of fifty (50) feet from
the top of the existing stream bank and any building or structure.
Commercial and industrial areas shall have creek areas dedicated as
drainage easements.
E. All stormwater design work and calculations
shall be prepared by a registered professional engineer in the State
of Missouri and stamped with a valid stamp and signed representing
that the professional engineer is certifying the responsibility for
the design.
F. Prior to acceptance of improvement plans,
the Director of Engineering or his/her designee may request that a
flood study be performed by the permit applicant in the area of the
improvements and, if necessary, require that a letter of map revision
be filed with the United States Army Corps of Engineers.
[R.O. 2011 § 510.280; R.O. 2009
§ 151.68; Ord. No. 02-175, 7-19-2002; Ord. No. 09-119, 6-18-2009; Ord. No.
10-174 § 3, 7-18-2010; Ord. No. 18-198, 9-4-2018]
A. The Metropolitan St. Louis Sewer District
(MSD) Standard Construction Specifications for Sewers and Drainage
Facilities, 2009, is hereby adopted for the City's standard construction
specifications for stormwater facilities with the following exceptions:
1.
Maintenance Of Backfilled Areas.
Backfilled areas shall be maintained to the grade of the surrounding
terrain by the developer or contractor for a period of one (1) year
after completion of the respective contract/project.
2.
Storm Pipes.
a.
R.C.P. Pipe. Reinforced concrete
pipe shall be installed and inspected per City of St. Charles standards.
b.
P.P. Pipe. Polypropylene pipe meeting
the requirements of ASTM F2736 or F2764 shall be installed and inspected
per City of St. Charles standards.
[Ord. No. 16-042 § 1, 2-16-2016]
c.
A developer achieving Tier 1 status under the Green Point Rating System Guide established in Section
400.920 may make application to the Department of Engineering for the use of a Green Point Rating System Alternative to the requirements of this Subsection as set forth in the "Development Guide: Infrastructure Alternatives for St. Charles GPRS Projects" on file with the City Clerk.
3.
Bedding Under And Around The Pipe.
All pipe shall be bedded in MSD 1 or 2 bedding unless otherwise directed
by the City.
4.
Earth Backfill, Flowable Fill And
Jetting. The permissible trench backfill materials and compaction
methods and criteria are subdivided into those associated with sewer
maintenance and new construction of sewers. All trenches not considered
part of new construction as defined below will be backfilled according
to the maintenance standards and at the direction of the Director
of Engineering or his/her designee.
a.
Maintenance. Where maintenance/repairs
require excavation to existing sewers.
(1) Flowable Fill (inside
Paved Areas). Where maintenance is required to existing sewers in
paved areas, flowable fill will be used as backfill (except as approved
by the City) from the top of the bedding material six (6) inches above
the pipe to the surface or to within one (1) foot of grade in landscaped
areas.
(2) Earth Backfill (outside
Paved Areas). As an alternative to flowable fill, earth backfill (meeting
MSD standards) may be used outside paved areas, from the top of the
bedding material six (6) inches above the pipe to the surface. Earth
backfill should be placed in maximum eight-inch loose lifts and shall
be mechanically compacted to a minimum density equal to that of the
adjacent, undisturbed earth.
b.
New Construction. To include sewer
construction in new residential subdivisions, new residential lots
and new commercial developments with the exception that any excavations
within existing paved areas or any off-site construction excavations
are to be treated as a maintenance excavation as stated above.
(1) Earth Backfill (Outside Paved Areas). Earth backfill for new construction may be used outside paved areas and must be properly jetted to achieve proper compaction. [See Subsection
(A)(4)(b)(4), Jetting, below.]
(2) Earth Backfill (Inside Proposed Paved Areas). Earth backfills inside paved areas shall be placed in maximum eight-inch loose lifts and shall be mechanically compacted to a minimum density equal to that of the adjacent undisturbed earth. Prior to paving operations, subgrade must be prepared and compacted to City standards per Chapter
405 of this Code.
(3) Granular Backfill (inside
Proposed Paved Areas). Granular backfill under proposed paved areas
and two (2) feet beyond proposed edge of pavement shall consist of
well graded three-fourth (3/4) inch minus crushed limestone. Granular
materials shall be free from organic, deleterious or earth materials
such as silt or clay. Granular materials must be properly jetted to
achieve proper compaction. [See Jetting in Subdivision (A)(4) below.]
(4) Jetting. Granular materials
and earth materials associated with new construction outside of pavements
may be jetted, taking care to avoid damage to the newly laid sewers.
The jetting shall be performed with a probe route on not greater than
seven and one-half (7 1/2) foot centers with the jetting probe centered
over and parallel with the direction of the pipe. Trench widths greater
than ten (10) feet will require multiple probes every seven and one-half
(7 1/2) foot centers.
(a) Depth. Trench backfill
less than eight (8) feet in depth shall be probed to a depth extending
to half the depth of the trench backfill, but not less than three
(3) feet. Trench backfill greater than eight (8) feet in depth shall
be probed to half the depth of the trench backfill but not greater
than eight (8) feet.
(b) Equipment. The jetting
probe shall be a metal pipe with an exterior diameter of one and one-half
(1 1/2) to two (2) inches.
(c) Method. Jetting shall
be performed from the low surface topographic point and proceed toward
the high point and from the bottom of the trench backfill towards
the surface. The flooding of each jetting probe shall be started slowly
allowing slow saturation of the soil. Water is not to be allowed to
flow away from the ditch without first saturating the trench.
(d) Surface Bridging. The
contractor shall identify the locations of surface bridging (the tendency
for the upper backfill crust to arch over the trench rather than collapse
and consolidate during the jetting process). The contractor shall
break down the bridged areas using an appropriate method such as the
wheels or bucket of a backhoe. When the surface crust is collapsed,
the void shall be backfilled with the same material used as trench
backfill and re-jetted. Compaction of the materials within the sunken/jetted
area shall be compacted such that no further surface subsidence occurs.
5.
Cast-Iron Covers. Concrete covers
on structures will not be allowed. Only cast-iron covers are permitted.
6.
Joints. All pipe joints and joints
on new structures shall use City approved rubber compression type
joints. Water stops are required at all points of connection not using
rubber compression type joints such as connections to existing structures.
[R.O. 2011 § 510.290; R.O. 2009
§ 151.69; Ord. No. 02-175, 7-19-2002; Ord. No. 04-178, 8-4-2004; Ord. No.
05-49, 2-4-2005; Ord. No. 05-70, 3-8-2005; Ord. No. 10-136 § 1, 6-16-2010; Ord. No. 18-198, 9-4-2018]
A. The following standards are to be used
for the rules and regulations for engineering design of stormwater
management systems within the City:
1.
Storm Sewer Design.
a.
On-Site Sewers. Sized to meet the
15-year, 20-minute storm peak flows.
b.
Calculation Method. Rational Method
(Q=API).
c.
Sewers Downstream Of Detention Basins.
15-year, 20-minute storm calculated on the area served by the detention
basin.
d.
Maximum Discharge Velocity At Outlets.
Three (3) feet per second after the use of energy dissipaters.
e.
Maximum Flow Requiring A Piped System
Or Designed Channel. Three (3) cubic foot per second.
f.
Creeks. Creeks to be piped under
any public road shall be sized to account for a fifty percent (50%)
blockage of the pipe for pipes and boxes with a design size (including
the percent blocked) up to six (6) feet in diameter. For pipes and
boxes six (6) feet and larger, the percent blocked may be reduced
at the direction of the Director of Engineering or his/her designee.
2.
Stormwater Overflow Systems.
a.
Definition. The purpose of the overflow
system is to provide a drainage path to safely pass flows which cannot
be accommodated by the design system without causing flooding of adjacent
structures.
b.
100-Year Storm Events. Flood areas
shall be evaluated and shown on the plans so that if the designed
storm sewers are exceeded by a storm event, the flooded area will
contain the 100-year, 20-minute and 100-year, 24-hour event. The depth
in parking lots may not exceed eight (8) inches and no part of any
flooded area may be within thirty (30) feet of a building. A permanent
drainage easement is required for all areas within the flood area
of a 100-year storm event and must be recorded on the subdivision
plat.
c.
100-Year Flood Elevation. One (1)
vertical foot of freeboard shall be maintained between the 100-year
high water elevation and the low sill elevation of any adjacent structure
or building.
d.
Overflow Facilities. Sewers or structures
designed as part of an overflow system for flood areas shall be designed
for the 100-year, 20-minute peak flows. Where conditions do not allow
this, the overflow system shall be considered on a site specific basis
by the City Engineer.
3.
Stormwater Detention And Stormwater
Quality.
[Ord. No. 18-252, 11-20-2018]
a.
There is hereby adopted by the City
Council of the City of St. Charles, Missouri, for the purpose of regulating
stormwater detention and stormwater quality within the City of St.
Charles, a document to be known as:
(1) Detention and Stormwater
Quality Engineering Design Criteria.
b.
The most recent edition of the Detention
and Stormwater Quality Engineering Design Criteria, listed above and
incorporated by reference herein, along with any amendments, insertions,
and deletions as may be approved by the City Council by ordinance
from time to time, shall be maintained by the Director of Engineering.
This document shall be posted on the City's website, and shall be
kept on file with the Director of Engineering and the City Clerk.
4.
Stormwater Detention Easements. Stormwater
detention easements are required for all detention facilities. These
easements must be recorded on the subdivision plat and must note that
maintenance of the facility or facilities are the responsibility of
the property owner or owners.
5.
Drainage Facility Surface Material. All drainage facilities including, but not limited to, detention basins, ditches and swales must be sodded or stabilized with rip-rap or other erosion control materials. All newly placed sod shall be maintained following the requirements of Section
405.260. Seed and mulch alone may not be installed in the portions of a drainage facility intended to convey or store the applicable design flow.
[R.O. 2011 § 510.300; R.O. 2009
§ 151.70; Ord. No. 02-175, 7-19-2002; Ord. No. 18-198, 9-4-2018]
A. Anyone contemplating any construction work
within the City shall prepare, or cause to be prepared, for review
and approval by the Director of Engineering or his/her designee, a
stormwater management plan for each site being developed, re-developed
or maintained. This plan shall follow the guidelines presented in
the manual "Protecting Water Quality," January 2011 by the Missouri
Department of Natural Resources and be stamped by a registered professional
engineer within the State of Missouri. The plan shall contain, among
other things, recommendations for potential locations and sizes of
on-site or off-site stormwater management facilities and an evaluation
of the existing streams and creeks within the site for stabilization
and grade (erosion) control issues. If approved by the Director of
Engineering or his/her designee, sites under one (1) acre may be exempted
from this rule and be given a written exemption from the Director
of Engineering or his/her designee.
B. The plan shall be designed to minimize the amount of erosion of the site during the construction of the project. Failure to have adequate erosion protection on the site or failure to maintain erosion protection throughout the construction of the project shall be considered a violation of this Article and will result in penalties per Sections
510.330 and
510.340.
[R.O. 2011 § 510.310; R.O. 2009
§ 151.71; Ord. No. 02-175, 7-19-2002; Ord. No. 18-198, 9-4-2018]
A. As part of the review process for the permitting
of construction activities, the following items will have to be submitted
to the Director of Engineering or his/her designee for review. These
items will have to be adjusted by the applicant as necessary to meet
the requirements of the City prior to the issuance of a permit for
the work.
1.
Calculations showing current (pre-developed)
and post-developed flows for each required storm event in each drainage
area.
2.
Stormwater Management Plan and Erosion/Sedimentation
Control Plan stamped by a professional engineer per Chapter 3 of "Protecting
Water Quality," January 2011 by the Missouri Department of Natural
Resources.
3.
Elevation vs. discharge tables or
curves for all storm frequencies (detention facilities).
4.
Elevation vs. storage tables or curves
for all storm frequencies (detention facilities).
5.
Inflow calculations and data for
all storm frequencies (detention facilities).
6.
Hydraulic gradeline computations
for pipes entering and leaving basins for all frequencies.
7.
Geotechnical report for design of
detention basin earth fills (if required by the Director of Engineering
or his/her designee).
8.
Site plan of detention facilities.
9.
Site plans showing flood areas and
elevations on 100-year, 20-minute and 100-year, 24-hour storm events.
10.
Cross sections of detention facility
adequate to determine volume.
12.
Approvals from the United States
Army Corps of Engineers and Missouri Department of Natural Resources.
13.
Flood and creek bank studies.
[R.O. 2011 § 510.320; R.O. 2009
§ 151.72; Ord. No. 02-175, 7-19-2002; Ord. No. 05-102, 4-13-2005; Ord. No.
15-125 § 1, 6-2-2015; Ord. No. 18-198, 9-4-2018]
A. The Director of Engineering or his/her
designee shall inspect, or cause to be inspected, all stormwater management
systems constructed within the City. Contractors are required to notify
the City prior to beginning any stormwater work on each site to be
worked or each phase of the site on larger projects.
B. Each owner of the property or site being
developed, re-developed or maintained has the responsibility and duty
to properly operate and maintain any stormwater detention facility.
The responsibility of maintenance of the facility in subdivision projects
shall remain with the developer until such time as the escrow for
such development has been released. Upon release of escrow, the maintenance
responsibility shall be vested in the trustees of the subdivision
by virtue of a trust indenture. The indenture of trust shall clearly
indicate resident responsibility for maintenance. The responsibility
for maintenance in single lot development shall remain with the general
contractor and owner until final inspection of the development is
approved and an occupancy permit is issued. After occupancy, the maintenance
of the detention facility shall be vested in the owner of the property.
All such privately owned and maintained facilities shall be subject
to periodic inspection by the Director of Engineering or his/her designee.
C. If, after an inspection by the Director of Engineering or his/her designee, the Director of Engineering or his/her designee determines that the condition of a privately owned stormwater management system is an immediate danger to the public health or safety because of an unsafe condition, or if the trustees or owner fail to provide a reasonable degree of maintenance, the Director of Engineering or his/her designee shall take such action as may be necessary to protect the public health and safety and make the system safe and correct. The Director of Engineering or his/her designee shall follow the abatement procedures set forth in Sections
220.040 through
220.120 of this Code. Any costs incurred by the City, as a result of the Director of Engineering or his/her designee's actions, shall be assessed against the owner(s) of the system.
D. Upon a finding by the City Council by clear and convincing evidence that an extreme hardship exists, there is no adverse impact to the public health, safety and welfare and that any and all impacted property owners consent to the grant of a variance in writing, then the City Council may grant a variance to the requirements of Section
510.270 or
510.290.
[R.O. 2011 § 510.330; R.O. 2009
§ 151.98; Ord. No. 02-175, 7-19-2002; Ord. No. 18-198, 9-4-2018]
A. Any person, company or organization found
to be violating any provision of this Chapter shall be served written
notice by the Director of Engineering or his/her designee. This notice
will require the person, company or organization to appear in front
of the Municipal Court for the City of St. Charles to adjudicate the
violation.
B. Each day in which any such violation shall
continue shall be deemed a separate offense.
C. Any person violating any of the provisions
of this Chapter shall become liable to the City for any expense, loss
or damage occasioned the City by reason of such violation.
D. If remedial action is required by the Director
of Engineering or his/her designee and the remedial action is not
taken, the City Engineer may then issue a stop work order. This stop
work order shall direct all parties involved to cease and desist all
or any portion of the work on the development except such work necessary
to bring the project into compliance. If such stop work order is ignored,
the parties shall be in violation of this Chapter and subject to the
penalties contained herein.
[R.O. 2011 § 510.340; R.O. 2009
§ 151.99; CC 1981 § 10-48; Ord.
No. 73-47, 7-25-1973; Ord. No. 02-175, 7-19-2002; Ord. No. 18-198, 9-4-2018]
Any person who violates any provision
of this Chapter and is found guilty in Municipal Court shall be subject
to the penalties administered by the courts with a minimum fine of
fifty dollars ($50.00) for each violation.