HomeMy Public PortalAboutCity of Creve Coeur ,
• •
BILL NO. 5150 ORDINANCE NO. 5043
AN ORDINANCE ADOPTING NEW REGULATIONS REGARDING LAND
DISTURBANCE ACTIVITIES, AND INSPECTIONS, COLLECTION OF
FEES, AND PENALTIES FOR VIOLATIONS RELATED THERETO,
RENAMING CHAPTER 24 OF THE MUNICIPAL CODE "PUBLIC WORKS",
AND REMOVING SECTIONS 26-60 AND 26-61 FROM THE ZONING CODE
AND PLACING SUCH SECTIONS IN CHAPTER 24.
WHEREAS, it would be beneficial to reorganize the Municipal Code so that various ordinances
regarding Public Works are contained in one chapter, and
WHEREAS, sections 26-60 and 26-61 of the Zoning Code concern Public Works and should be
moved to the Public Works chapter, and
WHEREAS, on Construction Sites or Land Disturbance Sites, soil is highly vulnerable to
erosion by wind and water and eroded soil endangers water resources by reducing water quality
and causing the siltation of aquatic habitat for fish and other desirable species. Deposits of
eroded soil also necessitate maintenance of sewers and ditches and the dredging of lakes. In
addition, clearing and grading during construction cause the loss of native vegetation necessary
for terrestrial and aquatic habitat. Construction activities also utilize materials and generate
wastes, which if not properly controlled can pollute receiving waters, and
WHEREAS, a new Land Disturbance Code will safeguard persons, protect property, and
prevent damage to the environment in Creve Coeur. This Code will also promote the public
welfare by guiding, regulating, and controlling the design, construction, use, and maintenance of
any development or other activity that disturbs or breaks the topsoil or results in the movement
of earth or land in Creve Coeur, and
WHEREAS, the City of Creve Coeur is required to adopt a Land Disturbance Code as a co-
permittee under the St. Louis Area Phase II Storm Water Management Plan designed to meet the
,0. regulatory requirements of the Missouri Department of Natural Resources and the United States
Environmental Protection Agency, and
WHEREAS, this Land Disturbance Code provides for the safety, health and welfare of the
public by regulating and controlling the design, construction, use, and maintenance of any
development or other activity that disturbs land surfaces or results in the movement of earth in
Creve Coeur, and
WHEREAS, this new Land Disturbance Code will replace certain provisions of current section
26-61 of the Zoning Code, and
WHEREAS,the Planning and Zoning Commission of the City of Creve Coeur, Missouri has
recognized the need for such reorganization and revision of the City Code of Ordinances; and
4
• •
BILL NO. 5150 ORDINANCE NO. 5043
WHEREAS, the Planning and Zoning Commission reviewed and unanimously recommended
approval of the subject amendments at its meeting on Monday April 21, 2008; and
WHEREAS, the City Council of the City of Creve Coeur, Missouri, also being cognizant of a
need for these changes in the City Code, held a public hearing thereon at the Creve Coeur
Government Center on May 27, 2008, beginning at 7:00 p.m., or immediately following the
close of the previous public hearing; and
WHEREAS, notice of publication for said public hearing had been previously published at least
15 days prior to the hearing, in the St. Louis Countian and in the West County Journal,
newspapers of general circulation in the City of Creve Coeur, and
WHEREAS, all persons who presented themselves at said meeting and desiring to be heard
were given an opportunity to be heard and a copy of the proposed ordinance has been made
available for public inspection prior to its consideration by the City Council; and this Bill having
been read by title in open meeting two times before final passage by the City Council; and
WHEREAS, the City Council being fully informed finds that amending the City Code of
Ordinances would be in harmony with and bear a substantial relation to the public welfare,
health, safety, comfort and convenience of the citizens of the City of Creve Coeur and in the
public interest,
NOW, THEREFORE, BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF
CREVE COEUR, AS FOLLOWS:
SECTION 1.
Chapter 24 of the Municipal Code is hereby renamed "Public Works".
SECTION 2.
Sections 26-60 and 26-61 are deleted from the Zoning Code and placed in Chapter 24 as
"Article III Storm Water Regulations" and such sections are renumbered as 24-30 and 24-
31.
SECTION 3.
Notwithstanding the foregoing, the provisions labeled "Sediment & Erosion Control
Regulations, City of Creve Coeur" currently found at the end of Section 26-61 of the Zoning
Code of the City of Creve Coeur(page numbers 2552.63 to 2552.69 of the Municipal Code)
are hereby repealed and replaced with a new Section 24-32, "Land Disturbance Code"
(which shall include the existing provisions labeled Appendix A currently starting at page
2552.70 of the Municipal Code), as follows:
2
• •
BILL NO. 5150 ORDINANCE NO. 50`
ARTICLE 1 - ADMINISTRATION
SECTION 101.0 SCOPE
101.1 Title: These regulations shall be known as the "Land Disturbance
Code" of Creve Coeur, Missouri, hereinafter referred to as "this Code."
101.2 Definitions: For the purpose of this Code, the following terms, phrases,
words, and their derivations shall have the meanings given herein. Where terms are not
defined by this section, such terms shall have ordinarily accepted meanings as the context
implies.
Best Management Practices or BMP: Practices, procedures or a
schedule of activities to reduce the amount of sediment and other pollutants in storm
water discharges associated with construction and Land Disturbance Activities. BMPs
also include treatment and requirements, operating procedures and practices to control
plant site runoff, spillage or leaks, sludge or waste disposal or drainage from raw
material storage, and both structural and nonstructural measures to control, treat or
prevent storm water runoff pollution within waters of the state. "Structural measures"
means engineered devices and "nonstructural measures" includes, but is not limited to
alternative site design, ordinance and zoning, education and good housekeeping
measures. Types of BMPs include, but are not limited to:
(a) State-approved standard specifications and permit programs.
(b) Employee training in erosion control, material handling and
storage and house-keeping for maintenance areas.
(c) Site preparation such as grading, surface roughening,
topsoiling, tree preservations and protection, and temporary construction entrances.
(d) Surface stabilization such as temporary seeding, permanent
seeding, mulching, sodding, ground cover including vines and shrubs, riprap and
geotextile fabric. Mulches may be hay, straw, fiber mats, netting, wood cellulose, corn
or tobacco stalks, bark, corn cobs, wood chips or other suitable material which is
reasonably clean and free of noxious weeds and deleterious materials. Grasses used
for temporary seeding shall be a quick growing species such as rye grass, Italian rye
grass or cereal grasses suitable to the area and which will not compete with the
grasses sown later for permanent cover.
(e) Runoff control measures such as temporary diversion dikes or
berms, permanent diversion dikes or berms, right-of-way or perimeter diversion
3
• •
BILL NO. 5150 ORDINANCE NO. 50(43
devices, and retention and detention basins; and sediment traps and barriers, sediment
basins, sediment (silt) fence and staked straw bale barriers.
(f) Runoff conveyance measures such as grass-lined channels,
riprap and paved channels, temporary slope drains, paved flumes or chutes; and slope
drains may be constructed of pipe, fiber mats, rubble, Portland cement concrete, plastic
sheets or other materials that adequately will control erosion.
(g) Inlet and outlet protection.
(h) Stream bank protection such as a vegetative greenbelt
between the land disturbance and the watercourse. Also, structural protection which
stabilizes the stream channel.
(i) A critical path method analysis or a schedule for performing
erosion control measures.
(j) Other proven methods for controlling runoff and sedimentation.
BOCA: Refers to the currently adopted BOCA National Building Code;
these regulations are designed to be used with the adopted BOCA Codes as a
reference for minimum performance standards.
Building Department: The Creve Coeur Building Department.
City: The City of Creve Coeur, Missouri.
Clearing: Any activity that removes the vegetative surface cover or
destroys the root system.
Code or this Code: The "Land Disturbance Code" of Creve Coeur,
Missouri.
County: St. Louis County, Missouri.
Construction Site or Land Disturbance Site: A parcel or contiguous
parcels, where Land Disturbance Activities are performed as part of a development.
Debris or Sediment Basin: A barrier or dam built across a waterway or
at other suitable locations to retain rock, sand, gravel, silt or other materials.
4
• •
BILL NO. 5150 ORDINANCE NO. 5013
Department of Highways and Traffic: The County Department of
Highways and Traffic, acting through its Director, or his/her duly authorized designee.
Department of Public Works: The Creve Coeur Department of Public
Works, acting through its Director, or his/her duly authorized designee.
Diversion: A channel with or without a supporting ridge on the lower
side constructed across or at the bottom of a slope.
Drainage Way: Any channel that conveys surface runoff through a
site.
Erosion: The wearing away of land surface through the action of wind
or water.
Erosion Control: Any Best Management Practices (BMP) that prevents
or minimizes Erosion.
Excavation or Cut: The removal, stripping or disturbance of soil, earth,
sand, rock, gravel or other similar substances from the ground.
Existing Grade: The vertical location of the existing ground surface
prior to excavations or filling.
FEMA: Federal Emergency Management Agency.
Fill or Filling: The placing of any soil, earth, sand, rock, gravel or other
substance on the ground.
Finished Grade: The final grade or elevations of the ground surface
conforming to the proposed design.
Grading: Reshaping the ground surface through excavation and/or fill
of material.
Land Disturbance Activities: Clearing, grading or any related work
which results in removal of the natural site vegetation or destruction of the root zone or
otherwise results in leaving the ground surface exposed to soil erosion through the
action of wind or water.
Land Disturbance, Major: Any Land Disturbance Activity involving one
(1) acre or more of land, or a site involving less than one (1) acre that is part of a
proposed development that will ultimately disturb one (1) acre or more.
5
•
BILL NO. 5150 ORDINANCE NO. 509
Land Disturbance, Ordinary: Any Land Disturbance Activity involving
less than one (1) acre of land, other than any Land Disturbance Activity involving a site
involving less than once (1) acre that is part of a proposed development that will
ultimately disturb one (1) acre or more.
Land Disturbance Permit: A permit issued by the authority having
jurisdiction authorizing a Land Disturbance Activity at a specific site subject to
conditions stated in the permit. A Land Disturbance Permit may be for any one or more
Major or Ordinary Land Disturbance Activities.
Perimeter Control: A barrier that prevents sediment from leaving a site
by filtering sediment-laden runoff or diverting it to a sediment trap or basin.
Phasing: Clearing a parcel of land in distinct stages, with the
stabilization of each phase substantially completed before the clearing of the next.
Qualified Professional: A Missouri licensed professional engineer or
other person or firm knowledgeable in the principles and practices of erosion and
sediment control, including the Best Management Practices described in this Code.
Runoff coefficient. The fraction of total rainfall that exits at the outfalls
from a site.
Sediment: Solid material, mineral or organic, that has been moved by
erosion and deposited in a location other than the point of origin.
Sediment Control: Any Best Management Practices (BMP) that
prevents eroded sediment from leaving a site.
Silt Traps or Filters: Staked bales or silt fencing systems that function
as a filter and a velocity check to trap fine-grained sediment while allowing satisfactory
passage for storm water runoff.
Site: A lot or parcel of land, or a contiguous combination thereof,
where grading work is performed as a single unified operation.
Site Development: Altering terrain and/or vegetation and constructing
improvements.
Stabilization: The use of Best Management Practices (BMP) that
prevent exposed soil from eroding from a Land Disturbance Site.
Start of Construction: The first Land Disturbance Activity associated
with a development.
6
• •
BILL NO. 5150 ORDINANCE NO. So443
Storm Water Pollution Prevention Plan (SWPPP): A management
plan, the purpose of which is to ensure the design, implementation, management and
maintenance of Best Management Practices in order to reduce the amount of sediment
and other pollutants in storm water discharges associated with Land Disturbance
Activities, comply with the standards of the City and County and ensure compliance
with the terms and conditions of the applicable state permits, including adherence to the
land disturbance program contained in Missouri MS4 NPDES permits.
Stream bank, Top of Existing: The usual boundaries, not the flood
boundaries, of a stream channel. The top of the natural incline bordering a stream.
Water Course: A natural or artificial channel or body of water,
including but not limited to, lakes, ponds, rivers, streams, ditches and other open
conveyances that carry surface runoff water either continuously or intermittently.
SECTION 102.0 APPLICABILITY
102.1 Other Laws: The provisions of this Code shall be interpreted
consistent with, and shall not be deemed to nullify, any related provisions of City, County,
state or federal law.
SECTION 103.0 ENFORCEMENT
103.1 Department of Public Works: The Department of Public Works
shall have the authority and responsibility to perform the following functions related to
the enforcement of this Code, including:
1. Receive applications for Major Land Disturbance
Permits;
2. Coordinate the review of Major Land Disturbance Permit
applications and accompanying documents with City Departments and the
Metropolitan St. Louis Sewer District (MSD);
3. Issue Major Land Disturbance Permits in coordination
with the Departments of the City and the Metropolitan St. Louis Sewer District
(MSD);
4. Inspect Major Land Disturbance Activities;
5. Inspect Land Disturbance Activities within or abutting
areas designated one-hundred (100) year flood plain;
7
• •
BILL NO. 5150 ORDINANCE NO. c0L3
6. Receive applications, perform plan review, inspect and
issue permits for Ordinary Land Disturbance Activities relating to Best Management
Practices to be utilized to control erosion and sedimentation from leaving the site
during construction and other Land Disturbance Activities;
7. Plan review of Major Land Disturbance Activities;
8. Plan review and inspection of Land Disturbance
Activities related to construction, repair, maintenance, or condition of roadways and
roadway right-of-ways which are maintained by the City;
9. Plan review of Land Disturbance Activities within or
abutting areas designated one-hundred (100) year flood plain; and
10. Administer the determination, collection and release of
site development escrows required by this Code.
103.2 The Department of Public Works shall promptly issue a Land
Disturbance Permit upon determination that all applicable provisions of this Code have been
met. No Major Land Disturbance Permit or Ordinary Land Disturbance Permit shall be
issued if the Department of Public Works finds that the proposed land disturbance activity
would result in a material change in the amount or pattern of surface water run-off to the
substantial injury of neighboring public or private property or right-of-way.
All land disturbance activities shall be carried out in such a
manner as to minimize inconvenience and harm to adjacent properties and property
owners.
103.3 Departments having enforcement authority and responsibilities
described in this Code shall have the authority, as necessary in the interest of public health,
safety and general welfare, to adopt and promulgate interpretations to implement the
provisions of this Code, in order to secure the intent thereof, and to designate requirements
applicable because of local climatic or other conditions. Such interpretations shall not have
the effect of waiving requirements specifically provided for in this Code or of violating
accepted engineering practices involving the purpose of this Code.
103.4 The City shall not be liable to any person or entity for
any action taken pursuant to authority of this Code or for failure to take action authorized by
this Code.
SECTION 104.0 VIOLATIONS
8
• •
•
BILL NO. 5150 ORDINANCE NO. 5°43
104.1 Unlawful acts: It shall be unlawful for any person, firm or
corporation to perform any Land Disturbance Activities, or cause or allow same to be done
in conflict with or in violation of any of the provisions of this Code.
104.2(a) Whenever the enforcement personnel find evidence of a
violation of any provision of this article, written notice thereof shall be given to the
responsible party (owner and/or occupant as the case may be). Such notice shall be in
writing and shall include: (1) a statement of the provisions being violated, together with a
designation of the remedial action to be taken; (2) the period of time within which such
remedial action shall be completed, which time shall be a reasonable period of time under
all of the circumstance; (3) a notice of the penalty for failure to timely remove or abate the
violation, including that a summons will be issued for hearing before the municipal court;
and (4) a statement that if the violation reoccurs within a period of 12 months after the
aforesaid date by which the violation shall be removed or abated, a summons may be
issued without further notice. Such notice shall be served by the enforcement personnel by
delivering a copy to the responsible party or by sending a copy of the notice by registered or
certified mail with return receipt requested to the last known address, or if the address of the
responsible part is unknown, by posting a copy of such notice in a conspicuous place in or
about the property affected by the notice. The notice shall be deemed served on the date
delivered or received, or ten (10) days after posting.
(b) The responsible party shall remedy the conditions
specified in such notice within the time designated therein, provided that the enforcement
personnel may, for good cause, extend the time for compliance with any such notice.
(c) Once notice has been given to a person regarding a
violation, if the same violation recurs in or on the same lot or tract of land, or land adjacent
thereto, within 12 months after the date stated in the notice as the deadline to remove or
abate the violation, no further notice shall be required and the same person may be
summoned into municipal court regarding the recurring violation.
(d) If a warning notice is given as provided in sub-section
(b), and if after the time for removal or abatement has lapsed, the property is reinspected
and the inspector finds and determines that the violation has not been removed or abated,
the inspector shall fill out and sign as the complainant a complaint and information form,
hereinafter referred to as a summons, directed by name to the occupant, owner, or person
in charge of the property, showing the address or legal description of the property on which
the violation is located, and such other information as may be available to the inspector and
setting forth in general the nature of the violation, and may serve the summons on the
occupant, owner, or person in charge, or any or all such persons. If a notice is not required
under subsection (a) the inspector who finds and determines that a violation has recurred
may fill out and sign as the complainant a complaint and information form as provided
above and may serve the summons on any person who is not entitled to notice under
subsection (a). The summons shall contain a date on which the case will be on the
9
• •
BILL NO. 5150 ORDINANCE NO. 5 Dq3
municipal court docket for a hearing. The city's prosecuting attorney or assistant
prosecuting attorney shall sign the original copy of all such summons, and the original
thereof shall be forwarded to the clerk of the municipal court for inclusion on the court's
docket for the date shown on the summons. If the violation is corrected prior to the court
date, the inspector may request the prosecuting attorney to dismiss the matter. If the matter
is dismissed, notice of dismissal shall be promptly provided to the summoned party.
(e) If no one is found at the property to accept a summons
for failure to remove or abate a violation, the inspector shall fill out and sign the summons
as the complainant as provided in subsection (d) and deliver the original and one copy of
the summons to the clerk of the municipal court. The clerk shall then mail the copy of the
summons by ordinary mail, postage prepaid to the person named therein at the address
shown on the summons, or at such other address as the person charged therewith may be
found, or shall be known to reside. If the mail is duly addressed to the person named in the
summons at the address as provided above and is not returned to the city, it shall be
deemed to have been delivered and received by the person to whom addressed.
104.3 Violation, Penalties: Any person, firm or corporation who shall
violate any provision of this Code, or who shall fail to comply with any of the requirements
thereof, or who shall perform work in violation of the approved construction documents or
the Storm Water Pollution Prevention Plan, or any directive of the Department of Public
Works, or of a permit or certificate issued under the provisions of this Code, or shall start
any work requiring a permit without first obtaining a permit therefore, or who shall continue
any work in or about a structure after having been served a stop-work order, except for such
work which that person, firm or corporation has been directed to perform to remove a
violation or unsafe conditions, or any owner of a property or any other person who commits,
takes part or assists in any violation of this Code or who maintains any property on which
such violation shall exist, shall be guilty of a misdemeanor and be subject to the General
Penalties of Section 1-10 of the Creve Coeur Municipal Code.
104.3.1 No-Permit Penalty: In addition to the penalties set out
above, the following procedure shall be followed where the Department of Public Works
determines that work has been started prior to the acquisition of a permit required by this
Code:
1. The Department of Public Works shall issue a
stop work order.
2. The Department of Public Works Director shall
notify the violator of his/her assessment regarding the appropriate penalty amount to
be assessed against the violator, which shall not exceed One Thousand Dollars
($1,000.00) for each day that work occurs without a permit. In making the
assessment, the Department of Public Works shall consider whether the violator has
10
• •
BILL NO. 5150 ORDINANCE NO. 50y-3
previously violated this Code and whether the occupation or experience of the
violator indicates that he/she knew or should have known that a permit was required.
In no case will a No- Permit Penalty be assessed against a property owner unless
he/she actually performed the work involved.
3. The violator shall either accept the penalty
assessment and pay the assessed penalty amount (certified check or cash only) to
the City, or pursue a timely appeal.
4. In the event of an appeal, the Department of
Public Works may revise its assessment upon notice to both the City Administrator
and the violator at any time prior to the hearing. Likewise, at any time prior to the
hearing, the violator may accept and pay the recommended penalty amount and the
hearing will be canceled.
104.4 Abatement of violation: The imposition of the penalties herein
prescribed shall not preclude the City from instituting appropriate action to prevent unlawful
construction or to restrain, correct or abate a violation, or to prevent illegal use of a property
or to stop an illegal act.
104.5 Permit Suspension or Revocation: When a Land Disturbance
Activity is conducted in violation of the requirements of this Code or the terms of the permit
in such a manner as to materially adversely affect the safety, health or welfare of persons,
or materially be detrimental or injurious to property or improvements, the Department of
Public Works may suspend or revoke such permit.
104.6 Stop Work Order: Upon notice from the Department of Public
Works that work on any property is being prosecuted contrary to the provisions of this Code
or in an unsafe and dangerous manner, such work shall be immediately stopped. The stop
work order shall be in writing and shall be given to the owner of the property involved, or to
the owner's agent, or to the person doing the work; and shall state the conditions under
which work will be permitted to resume.
104.6.1 Unlawful Continuance: Any person, who shall continue any
work in or about the property after having been served with a stop work order, except such
work as that person is directed to perform to remove a violation or unsafe condition, shall be
subject to penalties as specified in Sections 104.3 or 104.3.1 of this Code.
105.0 APPEALS
105.1 Application for appeal: Any person shall have the right to appeal
a decision of the Department of Public Works to the Board of Adjustment pursuant to
Section 26-118.10. An application for appeal shall be based on a claim that the intent of
11
i r
BILL NO. 5150 ORDINANCE NO. 5 D(43
this Code or the rules or regulations adopted there under have been incorrectly interpreted
or the provisions of this Code do not apply.
105.2 Resolution: The decision of the Board of Adjustment shall be in
writing. Copies shall be furnished to the appellant and to the Department of Public Works.
105.3 Administration: The Department of Public Works shall take
immediate action in accordance with the decision of the Board of Adjustment.
105.4 Court Review: A party adversely affected by a decision of the Board of
Adjustment may appeal to an appropriate court from such decision. Application for
review shall be made in the manner and time required by law following the filing of
the decision.
105.5 Payment: Upon conclusion of any and all timely review proceedings, the final
assessed penalty shall be immediately paid.
SECTION 106.0 LAND DISTURBANCE PERMITS REQUIRED
106.1 Permit Required: Any person who intends to conduct any Land Disturbance
Activity must obtain a permit prior to beginning the activity. The type of permit shall be as
required by sections 106.1.1 or 106.1.2 in this Code.
106.1.1 Major Land Disturbance Permit: No person shall perform any Major Land
Disturbance Activity prior to receipt of a Major Land Disturbance Permit. Applications for
Major Land Disturbance Permits shall be filed with the Department of Public Works.
106.1.2 Ordinary Land Disturbance Permit: No person shall perform any Ordinary
Land Disturbance Activity prior to receipt of an Ordinary Land Disturbance Permit.
Applications for Ordinary Land Disturbance Permits shall be filed with the Department of
Public Works.
106.1.2.1 Building Permit and related Ordinary Land Disturbance Activities: The
Department of Public Works may include Ordinary Land Disturbance Activities associated
with the construction of a building, structure, or parking lot authorized by a permit issued
under the building code, in an integrated permit for the proposed construction.
106.2 Limitation on Transfer of Land Disturbance Permits: Any person who buys
land from a person who has been issued a Land Disturbance Permit under sections 106.1 .1
or 106.1.2 of this Code must obtain a separate Land Disturbance Permit from the City,
unless the original permit holder obtains the approval of the Department of Public Works to
transfer the original permit to the new owner and the original owner retains responsibility for
the Land Disturbance Activities on such property.
12
• •
BILL NO. 5150 ORDINANCE NO. 50'f3
106.3 Exceptions - Land Disturbance Permits Not Required:
106.3.1 Land Disturbance Permits are not required for the following activities:
1. Any emergency activity that is immediately necessary for the protection of life,
property, or natural resources.
2. Land Disturbance Activities by any public utility for the installation, inspection,
repair or replacement of any of its equipment or for its collection or distribution lines or
piping systems; provided erosion and sediment control measures are provided until grass or
other vegetation is established or other approved ground cover means are used. This
exception does not apply to any Land Disturbance Activity associated with work that
requires a building permit.
106.3.2 Land Disturbance Permits are not required for the following activities,
provided the activity does not alter, or cause to be altered, the present surface of the
ground: a) by any cut or fill at the property line; b) by any cut or fill that would permanently
divert one drainage area to another drainage area; c) by any cut or fill which would deposit
mud or harmful silt, or create erosion or damage to adjoining properties; or d) by any cut or
fill that would block or affect an existing swale or drainage path in a manner to cause
damming and ponding:
1. Existing farming, nursery and agricultural operations conducted as a
permitted or accessory use.
2. Land Disturbance Activities involving less than thirty (30) cubic yards of
earth/soil moved and less than 2000 square feet of disturbed area provided the Land
Disturbance Activity is for the improvement of the property. Erosion and sediment control
measures shall be provided when necessary, until grass or other vegetation is established
or other approved means of ground cover means are used.
3. Land Disturbance Activities associated with additions to and accessory
structures for one- and two-family dwellings.
4. Removal of existing or dying grass or similar vegetation by disturbing not
more than 10,000 square feet and re-sodding or re-seeding with new landscaping to include
preparation of the seed bed; provided erosion and sediment control measures are provided
until the grass or other vegetation is established. Any cut or fill in conjunction with the
preparation of the seedbed shall not exceed thirty (30) cubic yards.
5. Gardening and similar activities on property occupied by one- or two- family
dwellings.
13
• .
BILL NO. 5150 ORDINANCE NO. Jc 043
106.4 State of Missouri Permits Required: The applicant must obtain a Land
Disturbance Permit from the State of Missouri Department of Natural Resources for any site
where one (1) acre or more of land will be disturbed before beginning any site work
authorized by a City permit. This requirement applies to sites of less than one acre that are
part of a proposed development that will ultimately disturb one (1) acre or more. A copy of
the state application and permit must be included in the application to the City.
SECTION 107.0 LAND DISTURBANCE PERMIT APPLICATIONS
107.1 Permit applications: Applications for Land Disturbance Permits required by
this Code shall be in the form prescribed by and accompanied by the site plans and
documents determined necessary by the Department of Public Works. Applications for Land
Disturbance Permits shall include proof that proposed land disturbance and uses have
received any applicable zoning approval from the City.
107.2 Storm Water Pollution Prevention Plan (SWPPP) Required for Major Land
Disturbance Permits: All applications for Major Land Disturbance Permits shall be
accompanied by a Storm Water Pollution Prevention Plan, prepared for the specific site by
or under the direction of a Qualified Professional which shall be dated and bear the
Qualified Professional's original seal and signature. The application shall contain a
statement that any land clearing, construction, or development involving the movement of
earth shall be in accordance with the Storm Water Pollution Prevention Plan, and the
applicant will assume and acknowledge responsibility for compliance with this Code and the
Storm Water Pollution Prevention Plan at the site of the permitted activity.
107.3 Required Site Development Escrows for Land Disturbance Permits: Applicants
for Land Disturbance Permits shall, upon approval of their application but prior to issuance
of permit, file a site development escrow, in the form of a letter of credit, or other
improvement security in an amount deemed sufficient by the Department of Public Works to
cover all costs of required erosion and sediment controls, water course protections, site
access controls, and material and waste controls.
107.3.1 Release of Escrows - Project Closure: Any site development escrow will not
be fully released to the depositor until all of the following have been completed:
1. All temporary control Best Management Practices (BMPs) have been
removed and the site has been fully stabilized.
2. All permanent control Best Management Practices (BMPs) have been
completed.
3. All final Land Disturbance inspections/certifications have been
completed by each of the government jurisdictions involved in authorizing the project.
Section 108.0 FEES
14
• •
BILL NO. 5150 ORDINANCE NO. 50143
108.1 Issuance of Permits: Land Disturbance Permits shall not be issued until the
fees associated with the permit are paid to the City.
108.1.1 Department of Public Works: Fees for the activities of the Department of
Public Works related to Land Disturbance Permits shall be in accordance with the fee rates
established in Appendix A Community Development and Public Works Fee Schedule. In
applying the Code Enforcement Fee Schedule, the total estimated cost of Land Disturbance
Activities shall include applicable grubbing, site clearing, rough grading, sediment and
erosion control measures, excavating, backfill, final grading, concrete flatwork, asphalt
pavement, and final landscaping. The Department of Public Works may require a bona fide
contract or an affidavit of the owner of the project, in which the applicant and owner verify
the total cost of the site improvements related to the permit.
Section 109.0 STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
109.1 Content - Storm Water Pollution Prevention Plan (SWPPP): Compliance with
the design requirements of this Code is required when developing the Storm Water
Pollution Prevention Plan and the Plan shall include the following:
1. Name, address and telephone number of the site owner and the name,
address and telephone number of the individual who will be in charge of
construction/development activities at the site.
2. Site address or location description and parcel identification number(s).
3. A site map showing the outlines of the total project area, the areas to be
disturbed, existing land uses, locations and names of surface water bodies, locations of
flood plains, locations of temporary and permanent Best Management Practices (BMP) and
such other pertinent information as may be required by the Department of Public Works.
4. Existing contours of the site and adjoining strips of off-site property and
proposed contours after completion of the proposed land disturbance and
development, based on United States Geological Survey datum, with established elevations
at buildings, walks, drives, street and roads; and information on necessary clearing and
grubbing, removal of existing structures, excavating, filling materials brought to the site,
spreading and compacting. Existing and proposed contours shall be shown at two (2) foot
elevation intervals.
5. A natural resources map identifying soils, forest cover, and resources
protected under other provisions of Creve Coeur Ordinances.
6. An estimate of the Runoff Coefficient of the site prior to disturbance and the
Runoff Coefficient after the construction addressed in the permit application is completed.
15
•
BILL NO. 5150 ORDINANCE NO. 50g3
7. Estimated quantity of land to be disturbed.
8. Details of the site drainage pattern both before and after Major Land
Disturbance Activities.
9. Access to construction site.
10. Description of Best Management Practices (BMP) to be utilized to control
erosion and sedimentation during the period of land disturbance.
11. Description of Best Management Practices (BMP) to be utilized to prevent
other potential pollutants such as construction wastes, toxic or hazardous substances,
petroleum products, pesticides, herbicides, site litter, sanitary wastes and other pollutants
from entering the natural drainage ways during the period of construction and land
disturbance.
12. Description of Best Management Practices (BMP) that will be installed during
land disturbance to control pollutants in storm water discharges that will occur after land
disturbance activity has been completed.
13. Location of temporary off-street parking, and wash-down area for related
vehicles.
14. Sources of off-site borrow material or spoil sites, and all information relative to
haul routes, trucks and equipment.
15. The anticipated sequence of construction and Land Disturbance
Activities, including installation of Best Management Practices (BMP), removal of temporary
Best Management Practices (BMP), stripping and clearing; rough grading; construction
utilities, infrastructure, and buildings; and final grading and landscaping. Sequencing shall
identify the expected date(s) on which clearing will begin, the estimated duration of
exposure of cleared areas, areas of clearing, installation of temporary erosion and sediment
control measures, and establishment of permanent vegetation.
16. All erosion and sediment control measures necessary to meet the objectives of
this Code throughout all phases of construction and after completion of site development.
Depending upon the complexity of the project, the drafting of intermediate plans may be
required at the close of each season.
17. Seeding mixtures and rates, types of sod, method of seedbed
preparation, expected seeding dates, type and rate of lime and fertilizer application, and
kind and quantity of mulching for both temporary and permanent vegetative control
measures.
16
• •
BILL NO. 5150 ORDINANCE NO. 5 043
18. Provisions for maintenance of control facilities including easements and
estimates of the cost of maintenance.
19. Plans for responding to any loss of contained sediment to include the
immediate actions the permit-holder will take in case of a containment failure. This plan
must include documentation of actions and mandatory reporting to the Department of Public
Works.
20. Schedules and procedures for routine inspections of any structures provided
to prevent pollution of storm water or to remove pollutants from storm water and of the site
in general to ensure all Best Management Practices (BMP) are continually implemented and
are effective.
109.2 Required Plan Amendments - Storm Water Pollution Prevention Plan
(SWPPP): The permit-holder shall amend the Storm Water Pollution Prevention Plan
whenever:
1. Design, operation or maintenance of Best Management Practices (BMP) is
changed;
2. Design of the construction project is changed in a way that could significantly
affect the quality of the storm water discharges;
3. Site operator's inspections indicate deficiencies in the Storm Water Pollution
Prevention Plan (SWPPP) or any Best Management Practices (BMP);
4. Inspections by the City or by the Missouri Department of Natural resources
indicate deficiencies in the Storm Water Pollution Prevention Plan (SWPPP) or any Best
Management Practices (BMP);
5. The Storm Water Pollution Prevention Plan (SWPPP) is determined to be
ineffective in significantly minimizing or controlling erosion or excessive sediment
deposits in streams or lakes;
6. The Storm Water Pollution Prevention Plan (SWPPP) is determined to be
ineffective in preventing pollution of waterways from construction wastes, chemicals,
fueling facilities, concrete truck washouts, toxic or hazardous materials, site litter or
other substances or wastes likely to have an adverse impact on water quality;
7. Total settleable solids from a storm water outfall exceeds 0.5 mI/L/hr if the
discharge is within the prescribed proximity of a "Valuable Resource Water" as defined
by the Missouri Department of Natural Resources;
17
• .
BILL NO. 5150 ORDINANCE NO. cY-L
8. Total settleable solids from a storm water outfall exceeds 2.5 ml/L/hr for any
other outfall; or
9. The City or the Missouri Department of Natural Resources determines
violations of water Quality Standards may occur or have occurred.
109.3 Permit-holder Responsibilities for Administration of Storm Water Pollution
Prevention Plan (SWPPP): The permit-holder shall:
1. Notify all contractors and other entities, (including utility crews, City or County
employees, or their agents) that will perform work at the site, of the existence of the
Storm Water Pollution Prevention Plan (SWPPP) and what actions or precautions shall
be taken while on site to minimize the potential for erosion and the potential for
damaging any Best Management Practices (BMP);
2. Determine the need for and establish training programs to ensure that all site
workers have been trained, at a minimum, in performing erosion control, material
handling and storage, and housekeeping;
3. Provide copies of the Storm Water Pollution Prevention Plan (SWPPP) to all
parties who are responsible for installation, operation or maintenance of any Best
Management Practices (BMP); and
4. Maintain a current copy of the Storm Water Pollution Prevention Plan
(SWPPP) on the site at all times.
ARTICLE 2 - DESIGN REQUIREMENTS
SECTION 201.0 GENERAL
201.1 Design: The design of erosion and sediment controls required for Land
Disturbance Activities shall comply with the following minimum requirements:
1. Land disturbance, erosion and sediment control practices, and watercourse
crossings shall be adequate to prevent transportation of sediment from the site.
2. Materials brought to any site or property under a permit issued under this
Code, where said material is intended to be utilized as fill material at the site for land
disturbance, erosion or sediment control, shall consist of clean uncontaminated earth,
soil, dirt, sand, rocks, gravel or masonry materials or other approved materials.
3. Cut and fill slopes shall be no greater than 3:1 except as approved by the
Department of Public Works to meet other community or environmental objectives. All
excavation, grading, or filling shall have a finished grade not to exceed a 3:1 slope
18
I •
BILL NO. 5150 ORDINANCE NO. 50`I3
(thirty-three (33) percent). Steeper grades may be approved by the Director of Public
Works if the excavation is through rock or if the excavation or the fill is adequately
protected (a designed head wall or toe wall may be required). Turf Reinforce
Mattresses (TRM), rock slopes, and other Best Management Practices (BMPs) could
be utilized for slopes in excess of 3:1, but must be approved by a qualified geotechnical
engineer hired by the developer and approved by the City prior to and/or during
installation. Retaining walls that exceed a height of forty-two (42) inches shall require
the construction of safety guards as identified in the appropriate sections(s) of the
adopted BOCA Codes and must be approved by the City Building Department.
Permanent safety guards shall be constructed in accordance with the appropriate
section(s) of the adopted BOCA Codes (latest edition). Also, the following water quality
issues as a reference an be used: Protecting Water Quality - A Field Guide to Erosion,
Sediment and Storm water Best Management Practices for Development Sites in
Missouri.
4. Clearing and grading of natural resources, such as forests and wetlands,
shall not be permitted, except when in compliance with all other City Ordinances.
5. Clearing techniques that retain existing vegetation to the maximum extent
practicable shall be used and the time period for disturbed areas to be without
vegetative cover shall be minimized to the extent practical.
6. Clearing, except that necessary to establish sediment control devices, shall
not begin until all sediment control devices have been installed and have been
stabilized.
7. Phasing shall be required on all sites disturbing greater than thirty (30) acres
of land. The size of each phase will be established by the Department of Public Works
at the time of plan review for the issuance of a Major Land Disturbance permit. Phasing
should identify the expected date on which clearing will begin, the estimated duration of
exposure of cleared areas and the sequence of clearing, installation of temporary
sediment control measures, installation of storm drainage, paving streets and parking
areas, and establishment of temporary and permanent vegetative cover. The Director
of the Department of Public Works may waive specific requirements for the content of
submissions upon finding that the information submitted is sufficient to show that the
work will comply with the objective and principles of these regulations.
201.2 Erosion Control Design: Erosion control requirements shall include the
following:
1. Soil stabilization shall be completed within five days of clearing or inactivity in
construction.
19
• •
BILL NO. 5150 ORDINANCE NO. 51343
2. If seeding or another vegetative erosion control method is used, it shall
become established within two weeks or the site shall be re-seeded or a non-vegetative
option employed. Where natural vegetation is removed during grading, vegetation shall
be re-established in such a density, seventy-five (75) percent vegetative cover of area
disturbed, as to prevent erosion. Permanent type grasses shall be established as soon
as possible or during the next seeding period after grading has been completed. When
grading operations are completed or suspended for more than thirty (30) days,
permanent grass must be established at sufficient density, fifty (50) percent to seventy-
five (75) percent vegetative cover, to provide erosion control on the site. Between
permanent grass seeding periods, temporary cover shall be provided according to the
Direct of Public Works' recommendations. All finished grades (areas not to be
disturbed by future improvements) in excess of twenty-percent slopes (5:1) shall be
mulched and tacked as prescribed in Appendix A.
3. Techniques shall be employed to ensure stabilization on steep slopes and in
drainage ways. Provisions shall be made to accommodate the increased runoff caused
by changed soil and surface conditions during and after grading. Unvegetated open
channels shall be designed so that gradients result in velocities of two (2) fps (feet per
second) or less. Open channels with velocities more than two (2) fps and less than five
(5) fps shall be established in permanent vegetation by use of commercial erosion
control blankets or lined with rock riprap or concrete or other suitable materials as
approved by the Director of Public Works. Detention basins, diversions, or other
appropriate structures shall be constructed to prevent velocities above five (5) fps.
(Refer to Figures 1 through 21).
4. Soil stockpiles must be stabilized or covered at the end of each workday or
perimeter controls must be in place to prevent silt from the stockpile from leaving the
site.
5. The entire site must be stabilized, using a heavy mulch layer or another
method that does not require germination to control erosion, at the close of the
construction season.
6. Techniques shall be employed to prevent the blowing of dust or sediment
from the site.
7. Techniques shall be employed to divert upland runoff past disturbed slopes.
The adjoining ground to development sites (lots) shall be provided with protection from
accelerated and increased surface water, silt from erosion, and any other
consequences of erosion. Runoff water from developed areas (parking lots, paved sites
and buildings) above the area to be developed shall be directed to diversions, detention
basins, concrete gutters and/or underground outlet systems. Sufficiently anchored
straw bales may be temporarily substituted with the approval of the Director of Public
Works. (Refer to Figures 1 through 21). All lots shall be seeded and mulched at the
20
• •
BILL NO. 5150 ORDINANCE NO. 50/-13
rates defined in Appendix A or sodded before an occupancy permit shall be issued
except that a temporary occupancy permit may be issued by the Building Department in
cases of undue hardship because of unfavorable ground conditions.
201.3 Sediment Control Design: Sediment control requirements shall include:
1. Settling basins, sediment traps, or tanks and perimeter controls.
2. Settling basins shall be provided for each drainage area within 10 or more
acres disturbed at one time and shall be sized to contain 0.5 inch of sediment from the
drainage area and be able to contain a 2-year, 24-hour storm. If the provision of a
basin of this size is impractical, other similarly effective Best Management Practices
(BMP), as evaluated and specified in the Storm Water Pollution Prevention Plan
(SWPPP), shall be provided.
3. Settling basins shall be designed in a manner that allows adaptation to
provide long-term storm water management, as required by the department(s) having
enforcement authority and responsibilities described in this Code.
4. Settling basins shall have stabilized spillways to minimize the potential for
erosion of the spillway or basin embankment.
5. Protection for adjacent properties by the use of a vegetated buffer strip in
combination with perimeter controls.
201.4 Watercourse Design: Watercourse protection requirements shall include:
1. Encroachment into or crossings of active water courses/riparian areas and
wetlands shall be avoided to the maximum extent practicable. All county, state and
federal permits and approvals shall be obtained by a permit holder prior to beginning
work authorized by a Land Disturbance Permit.
2. Development along natural watercourses shall have residential lot lines,
commercial or industrial improvements, parking areas or driveways set back a minimum
of twenty-five (25) feet from the top of the existing stream bank. The watercourse shall
be maintained and made the responsibility of the subdivision trustees or, in the case of
a site plan, by the property owner. Permanent vegetation shall be left intact. Variances
will include designed stream bank erosion control measures and shall be approved by
the Direct of Public Works. FEMA and U.S. Army Corps of Engineers guidelines shall
be followed where applicable regarding site development areas designated as
floodplains and wetlands.
3. Stabilization of any watercourse channels before, during, and after any in-
channel work.
21
• •
BILL NO. 5150 ORDINANCE NO. 5c 3
4. If a defined watercourse is to be re-aligned or re-configured, clearing and
grubbing activities within fifty (50) feet of the watercourse shall not begin until all
materials and equipment necessary to protect the watercourse and complete the work
are on site. Once started, work shall be completed as soon as possible. Areas within
fifty (50) feet of the watercourse shall be re-contoured and re-vegetated, seeded or
otherwise protected within five working days after land disturbance activities have
ceased.
5. All storm water conveyances shall be designed according to the criteria of the
St. Louis Metropolitan Sewer District (MSD) and the necessary MSD permits obtained.
6. Stabilization adequate to prevent erosion shall be provided at the outlets of all
pipes and paved channels.
201.5 Construction Site Access Design: Construction site access requirements for
Major Land Disturbance Activities shall include:
1. A temporary access road provided at all land disturbance sites including a
wash down area supporting all active sites.
2. The Department of Pubic Works may require other measures to ensure that
construction vehicles do not track sediment onto public streets or be washed with wash
effluent channeled directly into storm drains.
201.6 Control of Construction Materials and Waste: Control requirements for
construction materials, construction wastes and other wastes generated on site at land
disturbance sites shall include provisions, satisfactory to the City.
1. Spill prevention and control facilities for materials such as paint, solvents,
petroleum products, chemicals, toxic or hazardous substances, substances regulated
under the Resource Conservation and Recovery Act (RCRA) or the Comprehensive
Environmental Response, Compensation, and Liability Act (CERCLA), and any wastes
generated from the use of such materials and substances, including their containers.
Any containment systems employed to meet this requirement shall be constructed of
materials compatible with the substances contained and shall be adequate to protect
both surface and ground water.
2. Collection and disposal of discarded building materials and other construction
site wastes, including those listed in section 201.6. 1 above.
3. Litter control.
4. Control of concrete truck washouts.
22
• •
BILL NO. 5150 ORDINANCE NO. ,5043
5. Assurance that on-site fueling facilities will adhere to applicable federal and
state regulations concerning storage and dispensers.
6. Provision of sufficient temporary toilet facilities to serve the number of
workers on Major Land Disturbance sites.
ARTICLE 3 -INSPECTIONS
SECTION 301.0 GENERAL
301.1 Department of Public Works - General: The Department of Public Works shall
make inspections as herein required and shall either approve that portion of the work
completed or shall notify the permit holder wherein the work fails to comply with this Code
and applicable Permits and Plans. Plans for land disturbance, stripping, excavating, and
filling work bearing the stamp of approval of the City shall be maintained at the site during
the progress of the work. To obtain inspections, a permit-holder shall notify the Department
of Public Works at least two working days before the following:
1. Start of construction
2. Installation of sediment and erosion measures
3. Completion of site clearing
4. Completion of rough grading
5. Completion of final grading
6. Close of the construction season
7. Completion of final landscaping
301.1.1 Extra Inspections: In addition to the inspections otherwise required, the
Department of Public Works is authorized to perform and charge fees for extra inspections
or re-inspections which in its judgment are reasonably necessary due to non-compliance
with the requirements of this Code, or work not being ready or accessible for inspection
when requested.
301.1.2 All erosion and sediment control facilities shall be inspected following
each rainstorm causing significant runoff, or being of sufficient intensity or duration as to
stop construction or grading progress.
As a result of such inspections, or any time the following are found:
23
• •
BILL NO. 5150 ORDINANCE NO. 5D*3
(a) Excess sediment has accumulated in silt control devises,
(b) Sediment or erosion control devices have been damaged,
(c) Obvious gullies or sediment deposits have formed on the downstream side of
control devices, or
(d) Sediment has been carried beyond the working site;
The devices shall be cleaned of sediment, repaired if damaged, and restored to serviceable
conditions.
301.2 Permit-Holder Inspection and Report Responsibilities - Major Land
Disturbances: The holder of a Major Land Disturbance Permit, or his/her agent, shall cause
regular inspections of Land Disturbance Sites by a qualified special inspector. Inspections
shall include all erosion and sediment and other pollutant control measures, outfalls and off-
site receiving waters in accordance with the inspection schedule outlined in the approved
Storm Water Pollution Prevention Plan. Inspections must be scheduled at least once per
week and no later than 72 hours after heavy rain. The purpose of such inspections will be to
ensure proper installation, operation and maintenance of Best Management Practices and
to determine the overall effectiveness of the Storm Water Pollution Prevention Plan and the
need for additional control measures. All inspections shall be documented in written form on
weekly reports with copies submitted to the Department of Public Works at the time interval
specified in the permit. Permit-holder inspection reports must include the following minimum
information:
1) Inspector's name and signature;
2) Date of inspection;
3) Observations relative to the effectiveness of the Best Management Practices;
4) Actions taken or necessary to correct deficiencies; and
5) A listing of areas where land disturbance operations have permanently or
temporarily stopped.
The permit-holder shall notify the site contractor(s) responsible for any deficiencies
identified so that deficiencies can be corrected within seven calendar days of the weekly
inspection report.
301.2.1 Verification of permit holder's reports: The Department of Public Works may
make extra inspections as deemed necessary to ensure the validity of the reports filed
under section 301.2 of this Code or to otherwise ensure proper installation, operation and
24
• •
BILL NO. 5150 ORDINANCE NO. 5 D143
maintenance of storm water Best Management Practices and to determine the overall
effectiveness of the Storm Water Pollution Prevention Plan and the need for additional
control measures.
Section 4.
It is hereby declared to be the intention of the City Council that each and every part,
section and subsection of this Ordinance shall be separate and severable from each and
every other part, section and subsection hereof and that the City Council intends to adopt
each said part, section and subsection separately and independently of any other part,
section and subsection. In the event that any part of this Ordinance shall be determined to
be or to have been unlawful or unconstitutional, the remaining parts, sections and
subsections shall be and remain in full force and effect.
Section 5.
This Ordinance shall become effective pursuant to Section 3.11(G) of the City Charter.
ADOPTED BY THE CITY COUNCIL THIS q DAY OF Jt\-.A , , 2008.
ELIZABETH KISTNER
PRESIDENT OF THE CITY COUNCIL
APPROVED THIS q DAY OF J uom , , 2008.
HAROLD DIELMANN, MAYOR
ATTEST:
DEBORAH RYAN, MRC
CITY CLERK
I. t-
25
City of Creve Coeur, MO
Tuesday, March 2, 2021
Chapter 420. Land Disturbance Code
ATTACHMENTS
420a Appendix A
Section 420.010. Land Disturbance Code.
[R.O. 2008 §24-32(a,1,a)]
These regulations shall be known as the "Land Disturbance Code" of Creve Coeur, Missouri,
hereinafter referred to as"this code".
Section 420.020. Definitions.
[R.O. 2008 §24-32(a,1,b); Ord. No. 5165 §3, 12-13-2010]
For the purpose of this code, the following terms, phrases, words and their derivations shall have the
meanings given herein. Where terms are not defined by this Section, such terms shall have ordinarily
accepted meanings as the context implies.
BEST MANAGEMENT PRACTICES OR BMP
Practices, procedures or a schedule of activities to reduce the amount of sediment and other
pollutants in stormwater discharges associated with construction and land disturbance activities.
BMP also include treatment and requirements, operating procedures and practices to control plant
site runoff, spillage or leaks, sludge or waste disposal or drainage from raw material storage and
both structural and non-structural measures to control, treat or prevent stormwater runoff pollution
within waters of the State. "Structural measures" means engineered devices and "non-structural
measures"include, but are not limited to, alternative site design ordinance and zoning, education
and good housekeeping measures. Types of BMP include, but are not limited to:
1. State-approved standard specifications and permit programs.
2. Employee training in erosion control, material handling and storage and housekeeping for
maintenance areas.
3. Site preparation such as grading, surface roughening, topsoiling, tree preservations and
protection and temporary construction entrances.
4. Surface stabilization such as temporary seeding, permanent seeding, mulching, sodding,
ground cover including vines and shrubs, riprap and geotextile fabric. Mulches may be hay,
straw, fiber mats, netting, wood cellulose, corn or tobacco stalks, bark, corn cobs, wood chips
or other suitable material which is reasonably clean and free of noxious weeds and
deleterious materials. Grasses used for temporary seeding shall be a quick growing species
such as rye grass, Italian rye grass or cereal grasses suitable to the area and which will not
compete with the grasses sown later for permanent cover.
5. Runoff control measures such as temporary diversion dikes or berms, permanent diversion
dikes or berms, right-of-way or perimeter diversion devices and retention and detention
basins; and sediment traps and barriers, sediment basins, sediment (silt) fence and staked
straw bale barriers.
6. Runoff conveyance measures such as grass-lined channels, riprap and paved channels,
temporary slope drains, paved flumes or chutes; and slope drains may be constructed of pipe,
fiber mats, rubble, Portland cement concrete, plastic sheets or other materials that adequately
will control erosion.
7. Inlet and outlet protection.
8. Stream bank protection such as a vegetative greenbelt between the land disturbance and the
watercourse. Also, structural protection which stabilizes the stream channel.
9. A critical path method analysis or a schedule for performing erosion control measures.
10. Other proven methods for controlling runoff and sedimentation.
BUILDING DEPARTMENT
The Creve Coeur Building Department.
CITY
The City of Creve Coeur, Missouri.
CLEARING
Any activity that removes the vegetative surface cover or destroys the root system.
CODE OR THIS CODE
The"Land Disturbance Code" of Creve Coeur, Missouri.
CONSTRUCTION SITE OR LAND DISTURBANCE SITE
A parcel or contiguous parcels, where land disturbance activities are performed as part of a
development.
COUNTY
St. Louis County, Missouri.
DEBRIS OR SEDIMENT BASIN
A barrier or dam built across a waterway or at other suitable locations to retain rock, sand, gravel,
silt or other materials.
DEPARTMENT OF HIGHWAYS AND TRAFFIC
The County Department of Highways and Traffic, acting through its Director or his/her duly
authorized designee.
DEPARTMENT OF PUBLIC WORKS
The Creve Coeur Department of Public Works acting through its Director or his/her duly
authorized designee.
DIVERSION
A channel with or without a supporting ridge on the lower side constructed across or at the bottom
of a slope.
DRAINAGE WAY
Any channel that conveys surface runoff through a site.
EROSION
The wearing away of land surface through the action of wind or water.
EROSION CONTROL
Any best management practices (BMP) that prevents or minimizes erosion.
EXCAVATION OR CUT
The removal, stripping or disturbance of soil, earth, sand, rock, gravel or other similar substances
from the ground.
EXISTING GRADE
The vertical location of the existing ground surface prior to excavations or filling.
FEMA
Federal Emergency Management Agency.
FILL OR FILLING
The placing of any soil, earth, sand, rock, gravel or other substance on the ground.
FINISHED GRADE
The final grade or elevations of the ground surface conforming to the proposed design.
GRADING
Reshaping the ground surface through excavation and/or fill of material.
LAND DISTURBANCE ACTIVITIES
Clearing, grading or any related work which results in removal of the natural site vegetation or
destruction of the root zone or otherwise results in leaving the ground surface exposed to soil
erosion through the action of wind or water.
LAND DISTURBANCE, MAJOR
Any land disturbance activity involving one (1) acre or more of land or a site involving less than
one (1) acre that is part of a proposed development that will ultimately disturb one (1) acre or
more.
LAND DISTURBANCE, ORDINARY
Any land disturbance activity involving less than one (1) acre of land, other than any land
disturbance activity involving a site involving less than once (1) acre that is part of a proposed
development that will ultimately disturb one (1) acre or more.
LAND DISTURBANCE PERMIT
A permit issued by the authority having jurisdiction authorizing a land disturbance activity at a
specific site subject to conditions stated in the permit. A land disturbance permit may be for any
one (1) or more major or ordinary land disturbance activities.
PERIMETER CONTROL
A barrier that prevents sediment from leaving a site by filtering sediment-laden runoff or diverting it
to a sediment trap or basin.
PHASING
Clearing a parcel of land in distinct stages, with the stabilization of each phase substantially
completed before the clearing of the next.
QUALIFIED PROFESSIONAL
A Missouri licensed professional engineer or other person or firm knowledgeable in the principles
and practices of erosion and sediment control including the best management practices described
in this code.
RUNOFF COEFFICIENT
The fraction of total rainfall that exits at the outfalls from a site.
SEDIMENT
Solid material, material or organic, that has been moved by erosion and deposited in a location
other than the point of origin.
SEDIMENT CONTROL
Any best management practices (BMP) that prevents eroded sediment from leaving a site.
SILT TRAPS OR FILTERS
Staked bales or silt fencing systems that function as a filter and a velocity check to trap fine-
grained sediment while allowing satisfactory passage for stormwater runoff.
SITE
A lot or parcel of land, or a contiguous combination thereof, where grading work is performed as a
single unified operation.
SITE DEVELOPMENT
Altering terrain and/or vegetation and constructing improvements.
STABILIZATION
The use of best management practices (BMP) that prevent exposed soil from eroding from a land
disturbance site.
START OF CONSTRUCTION
The first(1st) land disturbance activity associated with a development.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
A management plan, the purpose of which is to ensure the design, implementation, management
and maintenance of best management practices in order to reduce the amount of sediment and
other pollutants in stormwater discharges associated with land disturbance activities, comply with
the standards of the City and County and ensure compliance with the terms and conditions of the
applicable State permits including adherence to the land disturbance program contained in
Missouri MS4 NPDES permits.
STREAM BANK, TOP OF EXISTING
The usual boundaries, not the flood boundaries, of a stream channel. The top of the natural incline
bordering a stream.
WATERCOURSE
A natural or artificial channel or body of water including, but not limited to, lakes, ponds, rivers,
streams, ditches and other open conveyances that carry surface runoff water either continuously
or intermittently.
Section 420.030. Applicability.
[R.O. 2008 §24-32(a,2)]
Other Laws. The provisions of this code shall be interpreted consistent with and shall not be deemed to
nullify any related provisions of City, County, State or Federal law.
Section 420.040. Enforcement.
[R.O. 2008 §24-32(a,3)]
A. Department Of Public Works. The Department of Public Works shall have the authority and
responsibility to perform the following functions related to the enforcement of this code including:
1. Receive applications for major land disturbance permits;
2. Coordinate the review of major land disturbance permit applications and accompanying
documents with City departments and the Metropolitan St. Louis Sewer District(MSD);
3. Issue major land disturbance permits in coordination with the departments of the City and the
Metropolitan St. Louis Sewer District(MSD);
4. Inspect major land disturbance activities;
5. Inspect land disturbance activities within or abutting areas designated 100-year floodplain;
6. Receive applications, perform plan review, inspect and issue permits for ordinary land
disturbance activities relating to best management practices to be utilized to control erosion
and sedimentation from leaving the site during construction and other land disturbance
activities;
7. Plan review of major land disturbance activities;
8. Plan review and inspection of land disturbance activities related to construction, repair,
maintenance or condition of roadways and roadway rights-of-way which are maintained by
the City;
9. Plan review of land disturbance activities within or abutting areas designated 100-year
floodplain; and
10. Administer the determination, collection and release of site development escrows required by
this code.
B. The Department of Public Works shall promptly issue a land disturbance permit upon
determination that all applicable provisions of this code have been met. No major land disturbance
permit or ordinary land disturbance permit shall be issued if the Department of Public Works finds
that the proposed land disturbance activity would result in a material change in the amount or
pattern of surface water runoff to the substantial injury of neighboring public or private property or
right-of-way.
All land disturbance activities shall be carried out in such a manner as to minimize inconvenience
and harm to adjacent properties and property owners.
C. Departments having enforcement authority and responsibilities described in this code shall have
the authority, as necessary in the interest of public health, safety and general welfare, to adopt
and promulgate interpretations to implement the provisions of this code in order to secure the
intent thereof and to designate requirements applicable because of local climatic or other
conditions. Such interpretations shall not have the effect of waiving requirements specifically
provided for in this code or of violating accepted engineering practices involving the purpose of
this code.
D. The City shall not be liable to any person or entity for any action taken pursuant to authority of this
code or for failure to take action authorized by this code.
Section 420.050. Violations.
[R.O. 2008 §24-32(a,4); Ord. No. 5492 §3, 8-22-2016]
A. Unlawful Acts. It shall be unlawful for any person, firm or corporation to perform any land
disturbance activities or cause or allow same to be done in conflict with or in violation of any of the
provisions of this code.
B. Notice Of Violation.
1. Whenever the enforcement personnel find evidence of a violation of any provision of this
Chapter, written notice thereof shall be given to the responsible party (owner and/or occupant
as the case may be). Such notice shall be in writing and shall include:
a. A statement of the provisions being violated, together with a designation of the remedial
action to be taken;
b. The period of time within which such remedial action shall be completed, which time shall
be a reasonable period of time under all of the circumstances;
c. A notice of the penalty for failure to timely remove or abate the violation, including that a
summons will be issued for hearing before the Municipal Court; and
d. A statement that if the violation reoccurs within a period of twelve (12) months after the
aforesaid date by which the violation shall be removed or abated, a summons may be
issued without further notice. Such notice shall be served by the enforcement personnel
by delivering a copy to the responsible party or by sending a copy of the notice by
registered or certified mail with return receipt requested to the last known address or if
the address of the responsible party is unknown, by posting a copy of such notice in a
conspicuous place in or about the property affected by the notice. The notice shall be
deemed served on the date delivered or received or ten (10) days after posting.
2. The responsible party shall remedy the conditions specified in such notice within the time
designated therein, provided that the enforcement personnel may, for good cause, extend the
time for compliance with any such notice.
3. Once notice has been given to a person regarding a violation, if the same violation recurs in
or on the same lot or tract of land or land adjacent thereto within twelve (12) months after the
date stated in the notice as the deadline to remove or abate the violation, no further notice
shall be required, and the same person may be summoned into Municipal Court regarding the
recurring violation.
4. If a warning notice is given as provided in Subsection (B) and if, after the time for removal or
abatement has lapsed, the property is reinspected and the inspector finds and determines
that the violation has not been removed or abated, the inspector shall fill out and sign as the
complainant a complaint directed by name to the occupant, owner and/or person in charge of
the property showing the address or legal description of the property on which the violation is
located and such other information as may be available to the inspector and setting forth in
general the nature of the violation. If a notice is not required under Subsection (B)(1), the
inspector who finds and determines that a violation has recurred may fill out and sign as the
complainant a complaint as provided above. The City's prosecuting attorney or assistant
prosecuting attorney shall, if he or she determines action is appropriate, sign the complaint as
an information and it shall then be forwarded to the Clerk of the Municipal Court for issuance
of summons and inclusion on the court's docket for the date shown on the summons. If the
violation is corrected prior to the court date, the inspector may request the prosecuting
attorney to dismiss the matter. If the matter is dismissed, notice of dismissal shall be promptly
provided to the summoned party.
5. The Clerk shall mail a copy of the summons by ordinary mail, postage prepaid, to the
person(s) named therein at the address shown on the summons or at such other address as
the person(s) charged therewith may be found or shall be known to reside. If the mail is duly
addressed to the person(s) named in the summons at the address as provided above and is
not returned to the City, it shall be deemed to have been delivered and received by the
person(s) to whom addressed.
C. Violation, Penalties. Any person, firm or corporation who shall violate any provision of this Code or
who shall fail to comply with any of the requirements thereof or who shall perform work in violation
of the approved construction documents or the Storm Water Pollution Prevention Plan or any
directive of the Department of Public Works or of a permit or certificate issued under the
provisions of this Code or shall start any work requiring a permit without first obtaining a permit
therefor or who shall continue any work in or about a structure after having been served a stop
work order, except for such work which that person, firm or corporation has been directed to
perform to remove a violation or unsafe conditions, or any owner of a property or any other person
who commits, takes part or assists in any violation of this Code or who maintains any property on
which such violation shall exist shall be guilty of a misdemeanor and be subject to the general
penalties of Section 100.090 of the Creve Coeur Municipal Code.
1. No permit penalty. In addition to the penalties set out above, the following procedure shall be
followed where the Department of Public Works determines that work has been started prior
to the acquisition of a permit required by this Code:
a. The Department of Public Works shall issue a stop work order.
b. The Department of Public Works Director shall notify the violator of his/her assessment
regarding the appropriate penalty amount to be assessed against the violator, which shall
not exceed one thousand dollars ($1,000.00) for each day that work occurs without a
permit. In making the assessment, the Department of Public Works shall consider
whether the violator has previously violated this Code and whether the occupation or
experience of the violator indicates that he/she knew or should have known that a permit
was required. In no case will a no permit penalty be assessed against a property owner
unless he/she actually performed the work involved.
c. The violator shall either accept the penalty assessment and pay the assessed penalty
amount (certified check or cash only) to the City or pursue a timely appeal.
d. In the event of an appeal, the Department of Public Works may revise its assessment
upon notice to both the City Administrator and the violator at any time prior to the
hearing. Likewise, at any time prior to the hearing, the violator may accept and pay the
recommended penalty amount, and the hearing will be canceled.
D. Abatement Of Violation. The imposition of the penalties herein prescribed shall not preclude the
City from instituting appropriate action to prevent unlawful construction or to restrain, correct or
abate a violation or to prevent illegal use of a property or to stop an illegal act.
E. Permit Suspension Or Revocation. When a land disturbance activity is conducted in violation of
the requirements of this Code or the terms of the permit in such a manner as to materially
adversely affect the safety, health or welfare of persons or materially be detrimental or injurious to
property or improvements, the Department of Public Works may suspend or revoke such permit.
F. Stop Work Order. Upon notice from the Department of Public Works that work on any property is
being prosecuted contrary to the provisions of this Code or in an unsafe and dangerous manner,
such work shall be immediately stopped. The stop work order shall be in writing and shall be given
to the owner of the property involved or to the owner's agent or to the person doing the work and
shall state the conditions under which work will be permitted to resume.
1. Unlawful continuance. Any person who shall continue any work in or about the property after
having been served with a stop work order, except such work as that person is directed to
perform to remove a violation or unsafe condition, shall be subject to penalties as specified in
Subsection (C) of this Section.
Section 420.060. Appeals.
[R.O. 2008 §24-32(a,5)]
A. Application For Appeal. Any person shall have the right to appeal a decision of the Department of
Public Works to the Board of Adjustment pursuant to Section 405.1110(J). An application for
appeal shall be based on a claim that the intent of this Code or the rules or regulations adopted
thereunder have been incorrectly interpreted or the provisions of this Code do not apply.
B. Resolution. The decision of the Board of Adjustment shall be in writing. Copies shall be furnished
to the appellant and to the Department of Public Works.
C. Administration. The Department of Public Works shall take immediate action in accordance with
the decision of the Board of Adjustment.
D. Court Review. A party adversely affected by a decision of the Board of Adjustment may appeal to
an appropriate court from such decision. Application for review shall be made in the manner and
time required by law following the filing of the decision.
E. Payment. Upon conclusion of any and all timely review proceedings, the final assessed penalty
shall be immediately paid.
Section 420.070. Land Disturbance Permits Required.
[R.O. 2008 §24-32(a,6); Ord. No. 5123 Exh. A, 2-22-2010]
A. Permit Required. Any person who intends to conduct any land disturbance activity must obtain a
permit prior to beginning the activity. The type of permit shall be as required by Subsections (A)(1)
or(A)(2) in this Section.
1. Major land disturbance permit. No person shall perform any major land disturbance activity
prior to receipt of a major land disturbance permit. Applications for major land disturbance
permits shall be filed with the Department of Public Works.
2. Ordinary land disturbance permit. No person shall perform any ordinary land disturbance
activity prior to receipt of an ordinary land disturbance permit. Applications for ordinary land
disturbance permits shall be filed with the Department of Public Works.
a. Building permit and related ordinary land disturbance activities. The Department of Public
Works may include ordinary land disturbance activities associated with the construction
of a building, structure or parking lot authorized by a permit issued under the Building
Code in an integrated permit for the proposed construction.
B. Limitation On Transfer Of Land Disturbance Permits. Any person who buys land from a person
who has been issued a land disturbance permit under Subsections (A)(1) or (A)(2) of this Section
must obtain a separate land disturbance permit from the City, unless the original permit holder
obtains the approval of the Department of Public Works to transfer the original permit to the new
owner and the original owner retains responsibility for the land disturbance activities on such
property.
C. Exceptions. Land disturbance permits not required:
1. Land disturbance permits are not required for the following activities:
a. Any emergency activity that is immediately necessary for the protection of life, property or
natural resources.
b. Land disturbance activities by any public utility for the installation, inspection, repair or
replacement of any of its equipment or for its collection or distribution lines or piping
systems; provided erosion and sediment control measures are provided until grass or
other vegetation is established or other approved ground cover means are used. This
exception does not apply to any land disturbance activity associated with work that
requires a building permit.
2. Land disturbance permits are not required for the following activities, provided the activity
does not alter or cause to be altered the present surface of the ground by any cut or fill at the
property line; by any cut or fill that would permanently divert one drainage area to another
drainage area; by any cut or fill which would deposit mud or harmful silt or create erosion or
damage to adjoining properties; or by any cut or fill that would block or affect an existing
swale or drainage path in a manner to cause damming and ponding:
a. Existing farming, nursery and agricultural operations conducted as a permitted or
accessory use.
b. Land disturbance activities involving less than thirty (30) cubic yards of earth/soil moved
and less than two thousand (2,000) square feet of disturbed area provided the land
disturbance activity is for the improvement of the property. Erosion and sediment control
measures shall be provided, when necessary, until grass or other vegetation is
established or other approved means of ground cover means are used.
c. Land disturbance activities associated with additions to and accessory structures for one-
and two-family dwellings.
d. Removal of existing or dying grass or similar vegetation by disturbing not more than ten
thousand (10,000) square feet and resodding or reseeding with new landscaping to
include preparation of the seedbed; provided erosion and sediment control measures are
provided until the grass or other vegetation is established. Any cut or fill in conjunction
with the preparation of the seedbed shall not exceed thirty (30) cubic yards.
e. Gardening and similar activities on property occupied by one-or two-family dwellings.
D. State Of Missouri Permits Required. The applicant must obtain a land disturbance permit from the
State of Missouri Department of Natural Resources for any site where one (1) acre or more of land
will be disturbed before beginning any site work authorized by a City permit. This requirement
applies to sites of less than one (1) acre that are part of a proposed development that will
ultimately disturb one (1) acre or more. A copy of the State application and permit must be
included in the application to the City.
Section 420.080. Land Disturbance Permit Applications.
[R.O. 2008 §24-32(a,7)]
A. Permit Applications. Applications for land disturbance permits required by this Code shall be in the
form prescribed by and accompanied by the site plans and documents determined necessary by
the Department of Public Works. Applications for land disturbance permits shall include proof that
proposed land disturbance and uses have received any applicable zoning approval from the City.
B. Storm Water Pollution Prevention Plan (SWPPP) Required For Major Land Disturbance Permits.
All applications for major land disturbance permits shall be accompanied by a Storm Water
Pollution Prevention Plan, prepared for the specific site by or under the direction of a qualified
professional, which shall be dated and bear the qualified professional's original seal and signature.
The application shall contain a statement that any land clearing, construction or development
involving the movement of earth shall be in accordance with the Storm Water Pollution Prevention
Plan and the applicant will assume and acknowledge responsibility for compliance with this Code
and the Storm Water Pollution Prevention Plan at the site of the permitted activity.
C. Required Site Development Escrows For Land Disturbance Permits. Applicants for land
disturbance permits shall, upon approval of their application but prior to issuance of permit, file a
site development escrow in the form of a letter of credit or other improvement security in an
amount deemed sufficient by the Department of Public Works to cover all costs of required erosion
and sediment controls, watercourse protections, site access controls and material and waste
controls.
1. Release of escrows—project closure. Any site development escrow will not be fully released
to the depositor until all of the following have been completed:
a. All temporary control best management practices (BMP) have been removed and the site
has been fully stabilized.
b. All permanent control best management practices (BMP) have been completed.
c. All final land disturbance inspections/certifications have been completed by each of the
government jurisdictions involved in authorizing the project.
Section 420.090. Fees.
[R.O. 2008 §24-32(a,8)]
A. Issuance Of Permits. Land disturbance permits shall not be issued until the fees associated with
the permit are paid to the City.
1. Department of Public Works. Fees for the activities of the Department of Public Works related
to land disturbance permits shall be in accordance with the fee rates established in Appendix
B to Title IV, Community Development and Public Works Fee Schedule. In applying the Code
Enforcement Fee Schedule, the total estimated cost of land disturbance activities shall
include applicable grubbing, site clearing, rough grading, sediment and erosion control
measures, excavating, backfill, final grading, concrete flatwork, asphalt pavement and final
landscaping. The Department of Public Works may require a bona fide contract or an affidavit
of the owner of the project in which the applicant and owner verify the total cost of the site
improvements related to the permit.
Section 420.100. Storm Water Pollution Prevention Plan
(SWPPP).
[R.O. 2008 §24-32(a,9)]
A. Content — Storm Water Pollution Prevention Plan (SWPPP). Compliance with the design
requirements of this Code is required when developing the Storm Water Pollution Prevention Plan
and the plan shall include the following:
1. Name, address and telephone number of the site owner and the name, address and
telephone number of the individual who will be in charge of construction/development
activities at the site.
2. Site address or location description and parcel identification number(s).
3. A site map showing the outlines of the total project area, the areas to be disturbed, existing
land uses, locations and names of surface water bodies, locations of floodplains, locations of
temporary and permanent best management practices (BMP) and such other pertinent
information as may be required by the Department of Public Works.
4. Existing contours of the site and adjoining strips of off-site property and proposed contours
after completion of the proposed land disturbance and development, based on United States
Geological Survey datum, with established elevations at buildings, walks, drives, street and
roads; and information on necessary clearing and grubbing, removal of existing structures,
excavating, filling materials brought to the site, spreading and compacting. Existing and
proposed contours shall be shown at two (2) foot elevation intervals.
5. A natural resources map identifying soils, forest cover and resources protected under other
provisions of Creve Coeur ordinances.
6. An estimate of the runoff coefficient of the site prior to disturbance and the runoff coefficient
after the construction addressed in the permit application is completed.
7. Estimated quantity of land to be disturbed.
8. Details of the site drainage pattern both before and after major land disturbance activities.
9. Access to construction site.
10. Description of best management practices (BMP) to be utilized to control erosion and
sedimentation during the period of land disturbance.
11. Description of best management practices (BMP) to be utilized to prevent other potential
pollutants such as construction wastes, toxic or hazardous substances, petroleum products,
pesticides, herbicides, site litter, sanitary wastes and other pollutants from entering the natural
drainage ways during the period of construction and land disturbance.
12. Description of best management practices (BMP) that will be installed during land disturbance
to control pollutants in stormwater discharges that will occur after land disturbance activity has
been completed.
13. Location of temporary off-street parking and wash-down area for related vehicles.
14. Sources of off-site borrow material or spoil sites and all information relative to haul routes,
trucks and equipment.
15. The anticipated sequence of construction and land disturbance activities including installation
of best management practices (BMP), removal of temporary best management practices
(BMP), stripping and clearing; rough grading; construction utilities, infrastructure and
buildings; and final grading and landscaping. Sequencing shall identify the expected date(s)
on which clearing will begin, the estimated duration of exposure of cleared areas, areas of
clearing, installation of temporary erosion and sediment control measures and establishment
of permanent vegetation.
16. All erosion and sediment control measures necessary to meet the objectives of this Code
throughout all phases of construction and after completion of site development. Depending
upon the complexity of the project, the drafting of intermediate plans may be required at the
close of each season.
17. Seeding mixtures and rates, types of sod, method of seedbed preparation, expected seeding
dates, type and rate of lime and fertilizer application and kind and quantity of mulching for
both temporary and permanent vegetative control measures.
18. Provisions for maintenance of control facilities including easements and estimates of the cost
of maintenance.
19. Plans for responding to any loss of contained sediment to include the immediate actions the
permit holder will take in case of a containment failure. This plan must include documentation
of actions and mandatory reporting to the Department of Public Works.
20. Schedules and procedures for routine inspections of any structures provided to prevent
pollution of stormwater or to remove pollutants from stormwater and of the site in general to
ensure all best management practices (BMP) are continually implemented and are effective.
B. Required Plan Amendments — Storm Water Pollution Prevention Plan (SWPPP). The permit
holder shall amend the Storm Water Pollution Prevention Plan whenever:
1. Design, operation or maintenance of best management practices (BMP) is changed;
2. Design of the construction project is changed in a way that could significantly affect the quality
of the stormwater discharges;
3. Site operator's inspections indicate deficiencies in the Storm Water Pollution Prevention Plan
(SWPPP) or any best management practices (BMP);
4. Inspections by the City or by the Missouri Department of Natural resources indicate
deficiencies in the Storm Water Pollution Prevention Plan (SWPPP) or any best management
practices (BMP);
5. The Storm Water Pollution Prevention Plan (SWPPP) is determined to be ineffective in
significantly minimizing or controlling erosion or excessive sediment deposits in streams or
lakes;
6. The Storm Water Pollution Prevention Plan (SWPPP) is determined to be ineffective in
preventing pollution of waterways from construction wastes, chemicals, fueling facilities,
concrete truck washouts, toxic or hazardous materials, site litter or other substances or
wastes likely to have an adverse impact on water quality;
7. Total settleable solids from a stormwater outfall exceeds five-tenths (0.5) ml/Uhr if the
discharge is within the prescribed proximity of a "valuable resource water" as defined by the
Missouri Department of Natural Resources;
8. Total settleable solids from a stormwater outfall exceeds two and one-half(2.5) ml/L/hr for any
other outfall; or
9. The City or the Missouri Department of Natural Resources determines violations of water
quality standards may occur or have occurred.
C. Permit Holder Responsibilities For Administration Of Storm Water Pollution Prevention Plan
(SWPPP). The permit holder shall:
1. Notify all contractors and other entities (including utility crews, City or County employees or
their agents) that will perform work at the site of the existence of the Storm Water Pollution
Prevention Plan (SWPPP) and what actions or precautions shall be taken while on site to
minimize the potential for erosion and the potential for damaging any best management
practices (BMP);
2. Determine the need for and establish training programs to ensure that all site workers have
been trained, at a minimum, in performing erosion control, material handling and storage and
housekeeping;
3. Provide copies of the Storm Water Pollution Prevention Plan (SWPPP) to all parties who are
responsible for installation, operation or maintenance of any best management practices
(BMP); and
4. Maintain a current copy of the Storm Water Pollution Prevention Plan (SWPPP) on the site at
all times.
Section 420.110. Design Requirements.
[R.O. 2008§24-32(b); Ord. No. 5165 §3, 12-13-2010]
A. General Design. The design of erosion and sediment controls required for land disturbance
activities shall comply with the following minimum requirements:
1. Land disturbance, erosion and sediment control practices and watercourse crossings shall be
adequate to prevent transportation of sediment from the site.
2. Materials brought to any site or property under a permit issued under this Code, where said
material is intended to be utilized as fill material at the site for land disturbance, erosion or
sediment control, shall consist of clean uncontaminated earth, soil, dirt, sand, rocks, gravel or
masonry materials or other approved materials.
3. Cut and fill slopes shall be no greater than 3:1 except as approved by the Department of
Public Works to meet other community or environmental objectives. All excavation, grading or
filling shall have a finished grade not to exceed a 3:1 slope (thirty-three percent (33%)).
Steeper grades may be approved by the Director of Public Works if the excavation is through
rock or if the excavation or the fill is adequately protected (a designed head wall or toe wall
may be required). Turf reinforce mattresses (TRM), rock slopes and other best management
practices (BMP) could be utilized for slopes in excess of 3:1, but must be approved by a
qualified geotechnical engineer hired by the developer and approved by the City prior to
and/or during installation. Retaining walls that exceed a height of forty-two (42) inches shall
require the construction of safety guards as identified in the appropriate Sections(s) of the
adopted City Building Codes and must be approved by the City Building Department.
Permanent safety guards shall be constructed in accordance with the appropriate Section(s)
of the adopted City Building Codes (latest edition). Also, the following water quality issues as
a reference can be used: Protecting Water Quality - A Field Guide to Erosion, Sediment and
Stormwater Best Management Practices for Development Sites in Missouri.
4. Clearing and grading of natural resources, such as forests and wetlands, shall not be
permitted, except when in compliance with all other City ordinances.
5. Clearing techniques that retain existing vegetation to the maximum extent practicable shall be
used and the time period for disturbed areas to be without vegetative cover shall be
minimized to the extent practical.
6. Clearing, except that necessary to establish sediment control devices, shall not begin until all
sediment control devices have been installed and have been stabilized.
7. Phasing shall be required on all sites disturbing greater than thirty (30) acres of land. The size
of each phase will be established by the Department of Public Works at the time of plan
review for the issuance of a major land disturbance permit. Phasing should identify the
expected date on which clearing will begin, the estimated duration of exposure of cleared
areas and the sequence of clearing, installation of temporary sediment control measures,
installation of storm drainage, paving streets and parking areas and establishment of
temporary and permanent vegetative cover. The Director of the Department of Public Works
may waive specific requirements for the content of submissions upon finding that the
information submitted is sufficient to show that the work will comply with the objective and
principles of these regulations.
B. Erosion Control Design. Erosion control requirements shall include the following:
1. Soil stabilization shall be completed within five (5) days of clearing or inactivity in construction.
2. If seeding or another vegetative erosion control method is used, it shall become established
within two (2) weeks or the site shall be reseeded or a non-vegetative option employed.
Where natural vegetation is removed during grading, vegetation shall be re-established in
such a density, seventy-five percent (75%) vegetative cover of area disturbed, as to prevent
erosion. Permanent type grasses shall be established as soon as possible or during the next
seeding period after grading has been completed. When grading operations are completed or
suspended for more than thirty (30) days, permanent grass must be established at sufficient
density, fifty percent (50%) to seventy-five percent (75%) vegetative cover, to provide erosion
control on the site. Between permanent grass seeding periods, temporary cover shall be
provided according to the Director of Public Works' recommendations. All finished grades
(areas not to be disturbed by future improvements) in excess of twenty percent (20%) slopes
(5:1) shall be mulched and tacked as prescribed in Appendix A to this Chapter 420.
3. Techniques shall be employed to ensure stabilization on steep slopes and in drainage ways.
Provisions shall be made to accommodate the increased runoff caused by changed soil and
surface conditions during and after grading. Unvegetated open channels shall be designed so
that gradients result in velocities of two (2) fps (feet per second) or less. Open channels with
velocities more than two (2) fps and less than five (5) fps shall be established in permanent
vegetation by use of commercial erosion control blankets or lined with rock riprap or concrete
or other suitable materials as approved by the Director of Public Works. Detention basins,
diversions or other appropriate structures shall be constructed to prevent velocities above five
(5) fps. (Refer to Figures 1 through 21.)
4. Soil stockpiles must be stabilized or covered at the end of each workday or perimeter controls
must be in place to prevent silt from the stockpile from leaving the site.
5. The entire site must be stabilized, using a heavy mulch layer or another method that does not
require germination to control erosion, at the close of the construction season.
6. Techniques shall be employed to prevent the blowing of dust or sediment from the site.
7. Techniques shall be employed to divert upland runoff past disturbed slopes. The adjoining
ground to development sites (lots) shall be provided with protection from accelerated and
increased surface water, silt from erosion and any other consequences of erosion. Runoff
water from developed areas (parking lots, paved sites and buildings) above the area to be
developed shall be directed to diversions, detention basins, concrete gutters and/or
underground outlet systems. Sufficiently anchored straw bales may be temporarily substituted
with the approval of the Director of Public Works. (Refer to Figures 1 through 21.)All lots shall
be seeded and mulched at the rates defined in Appendix A to this Chapter 420 or sodded
before an occupancy permit shall be issued except that a temporary occupancy permit may
be issued by the Building Department in cases of undue hardship because of unfavorable
ground conditions.
C. Sediment Control Design. Sediment control requirements shall include:
1. Settling basins, sediment traps or tanks and perimeter controls.
2. Settling basins shall be provided for each drainage area within ten (10) or more acres
disturbed at one (1) time and shall be sized to contain five-tenths (0.5) inch of sediment from
the drainage area and be able to contain a 2-year, 24-hour storm. If the provision of a basin of
this size is impractical, other similarly effective best management practices (BMP), as
evaluated and specified in the Storm Water Pollution Prevention Plan (SWPPP), shall be
provided.
3. Settling basins shall be designed in a manner that allows adaptation to provide long-term
stormwater management as required by the department(s) having enforcement authority and
responsibilities described in this Code.
4. Settling basins shall have stabilized spillways to minimize the potential for erosion of the
spillway or basin embankment.
5. Protection for adjacent properties by the use of a vegetated buffer strip in combination with
perimeter controls.
D. Watercourse Design. Watercourse protection requirements shall include:
1. Encroachment into or crossings of active watercourses/riparian areas and wetlands shall be
avoided to the maximum extent practicable. All County, State and Federal permits and
approvals shall be obtained by a permit holder prior to beginning work authorized by a land
disturbance permit.
2. Development along natural watercourses shall have residential lot lines, commercial or
industrial improvements, parking areas or driveways set back a minimum of twenty-five (25)
feet from the top of the existing stream bank. The watercourse shall be maintained and made
the responsibility of the subdivision trustees or, in the case of a site plan, by the property
owner. Permanent vegetation shall be left intact. Variances will include designed stream bank
erosion control measures and shall be approved by the Director of Public Works. FEMA and
U.S. Army Corps of Engineers guidelines shall be followed where applicable regarding site
development areas designated as floodplains and wetlands.
3. Stabilization of any watercourse channels before, during and after any in-channel work.
4. If a defined watercourse is to be realigned or reconfigured, clearing and grubbing activities
within fifty (50) feet of the watercourse shall not begin until all materials and equipment
necessary to protect the watercourse and complete the work are on site. Once started, work
shall be completed as soon as possible. Areas within fifty (50) feet of the watercourse shall be
recontoured and revegetated, seeded or otherwise protected within five (5) working days after
land disturbance activities have ceased.
5. All stormwater conveyances shall be designed according to the criteria of the St. Louis
Metropolitan Sewer District(MSD) and the necessary MSD permits obtained.
6. Stabilization adequate to prevent erosion shall be provided at the outlets of all pipes and
paved channels.
E. Construction Site Access Design. Construction site access requirements for major land
disturbance activities shall include:
1. A temporary access road provided at all land disturbance sites including a wash-down area
supporting all active sites.
2. The Department of Public Works may require other measures to ensure that construction
vehicles do not track sediment onto public streets or be washed with wash effluent channeled
directly into storm drains.
F. Control Of Construction Materials And Waste. Control requirements for construction materials,
construction wastes and other wastes generated on site at land disturbance sites shall include
provisions satisfactory to the City.
1. Spill prevention and control facilities for materials such as paint, solvents, petroleum products,
chemicals, toxic or hazardous substances, substances regulated under the Resource
Conservation and Recovery Act (RCRA) or the Comprehensive Environmental Response,
Compensation and Liability Act (CERCLA) and any wastes generated from the use of such
materials and substances including their containers. Any containment systems employed to
meet this requirement shall be constructed of materials compatible with the substances
contained and shall be adequate to protect both surface and ground water.
2. Collection and disposal of discarded building materials and other construction site wastes
including those listed in Subsection (F)(1) above.
3. Litter control.
4. Control of concrete truck washouts.
5. Assurance that on-site fueling facilities will adhere to applicable Federal and State regulations
concerning storage and dispensers.
6. Provision of sufficient temporary toilet facilities to serve the number of workers on major land
disturbance sites.
Section 420.120. Inspections.
[R.O. 2008 §24-32(c); Ord. No. 5043 §3, 7-14-2008]
A. Department Of Public Works— General. The Department of Public Works shall make inspections
as herein required and shall either approve that portion of the work completed or shall notify the
permit holder wherein the work fails to comply with this Code and applicable permits and plans.
Plans for land disturbance, stripping, excavating and filling work bearing the stamp of approval of
the City shall be maintained at the site during the progress of the work. To obtain inspections, a
permit holder shall notify the Department of Public Works at least two (2) working days before the
following:
1. Start of construction.
2. Installation of sediment and erosion measures.
3. Completion of site clearing.
4. Completion of rough grading.
5. Completion of final grading.
6. Close of the construction season.
7. Completion of final landscaping.
B. Extra Inspections. In addition to the inspections otherwise required, the Department of Public
Works is authorized to perform and charge fees for extra inspections or reinspections which in its
judgment are reasonably necessary due to non-compliance with the requirements of this Code or
work not being ready or accessible for inspection when requested.
C. All erosion and sediment control facilities shall be inspected following each rainstorm causing
significant runoff or being of sufficient intensity or duration as to stop construction or grading
progress. As a result of such inspections or any time the following are found:
1. Excess sediment has accumulated in silt control devices;
2. Sediment or erosion control devices have been damaged;
3. Obvious gullies or sediment deposits have formed on the downstream side of control devices;
or
4. Sediment has been carried beyond the working site. The devices shall be cleaned of
sediment, repaired if damaged and restored to serviceable conditions.
D. Permit Holder Inspection And Report Responsibilities—Major Land Disturbances. The holder of a
major land disturbance permit or his/her agent shall cause regular inspections of land disturbance
sites by a qualified special inspector. Inspections shall include all erosion and sediment and other
pollutant control measures, outfalls and off-site receiving waters in accordance with the inspection
schedule outlined in the approved Storm Water Pollution Prevention Plan. Inspections must be
scheduled at least once per week and no later than seventy-two (72) hours after heavy rain. The
purpose of such inspections will be to ensure proper installation, operation and maintenance of
best management practices and to determine the overall effectiveness of the Storm Water
Pollution Prevention Plan and the need for additional control measures. All inspections shall be
documented in written form on weekly reports with copies submitted to the Department of Public
Works at the time interval specified in the permit. Permit holder inspection reports must include the
following minimum information:
1. Inspector's name and signature;
2. Date of inspection;
3. Observations relative to the effectiveness of the best management practices;
4. Actions taken or necessary to correct deficiencies; and
5. A listing of areas where land disturbance operations have permanently or temporarily
stopped.
The permit holder shall notify the site contractor(s) responsible for any deficiencies
identified so that deficiencies can be corrected within seven (7) calendar days of the
weekly inspection report.
E. Verification Of Permit Holder's Reports. The Department of Public Works may make extra
inspections as deemed necessary to ensure the validity of the reports filed under Subsection (D)
of this Code or to otherwise ensure proper installation, operation and maintenance of stormwater
best management practices and to determine the overall effectiveness of the Storm Water
Pollution Prevention Plan and the need for additional control measures.
LAND DISTURBANCE CODE
420 Attachment 1
City of Creve Coeur
APPENDIX A
NATURAL RESOURCES CONSERVATION SERVICE
ILLINOIS URBAN MANUAL
PRACTICE STANDARD
TEMPORARY SEEDING
(acres or square feet)
CODE 965
DEFINITION
Planting rapid-growing annual grasses or small grains to provide initial, temporary cover for
erosion control on disturbed areas.
PURPOSE
The purpose of this practice is to temporarily stabilize denuded areas that will not be brought to
final grade or on which construction will be stopped for a period of more than fourteen (14)
working days.
Temporary seeding helps reduce runoff and erosion until permanent vegetation or other erosion
control measures can be established. In addition, it provides residue for soil protection during
seedbed preparation and reduces problems of mud and dust production from bare soil surfaces
during construction.
CONDITIONS WHERE PRACTICE APPLIES
This practice applies to all cleared, unvegetated or sparsely vegetated soil surfaces where
vegetative cover is needed for less than one (1) year. Applications of this practice include
diversions, dams, temporary sediment basins, temporary road banks, topsoil stockpiles and any
other exposed areas of a construction site.
CRITERIA
Plant selection—Select plants appropriate to the season and site conditions from Table 1.
Site preparation--Prior to seeding, install necessary erosion control and sediment control
practices if possible.
420 Attachment 1:1 Supp.#16,12/13
CREVE COEUR CITY CODE
Remove large rocks or other debris that may interfere with seedbed preparation or seeding
operations.
Seedbed preparation:
1. Liming. Where the pH of the soil is below five and one-half(5.5), apply one and one-half
(1'/2)to two(2)tons per acre of finely ground agricultural limestone. If the seeding period
is less than thirty(30)days, liming will not be required.
2. Fertilizer. Apply five hundred(500)pounds per acre of 10-10-10 fertilizer or equivalent.
Incorporate lime and fertilizer into the top two(2)to four(4) inches of soil. If the seeding
period is less than thirty(30)days, fertilizer will not be required.
3. Prepare a seedbed of loose soil to a depth of three (3) to four(4) inches. If recent tillage
or grading operations have resulted in a loose surface, additional tillage or roughening
may not be required except to break up large clods. If rainfall caused the surface to
become sealed or crusted, loosen it just prior to seeding by disking, raking, harrowing or
other suitable methods. Grove or furrow slopes steeper than 3:1 on the contour before
seeding.
Seeding — Seed shall be evenly applied with a cyclone seeder, drill, cultipacker seeder or
hydroseeder. Small grains shall be planted no more than one (1) inch deep. Grasses shall be
planted no more than one-half(%2)inch deep.
Cover broadcast seedings by cultipacking,dragging a harrow or raking.
Mulching—Seedings made during optimum spring and summer seeding dates, with favorable
soil and site conditions,will not require mulch.
When temporary protection is needed, see practice standard 875,MULCHING.
CONSIDERATIONS
Temporary seedings should be used to protect earthen structures such as dikes,diversions,dams
and other structures used for sediment control during construction. Temporary seedings can
also reduce the amount of maintenance these structures may need. For example, the frequency
of sediment basin cleanouts will be reduced if watershed areas, outside the active construction
zone, are stabilized.
Proper seedbed preparation, selection of appropriate species and use of quality seed are as
important in this practice as in practice standard 880, PERMANENT SEEDING. Failure to
follow established guidelines and recommendations carefully might result in an inadequate or
short-lived stand of vegetation that will not control erosion.
Temporary seeding provides protection for no more than one (1) year, during which time
permanent stabilization should be initiated.
420 Attachment 1:2 Supp.#16,12/13
LAND DISTURBANCE CODE
PLANS AND SPECIFICATIONS
Plans for temporary seeding shall include plant species to be used, dates of seeding, seedbed
preparation,fertilization and seeding rates and methods.
OPERATION AND MAINTENANCE
Reseed areas where seedling emergence is poor or where erosion occurs, as soon as possible.
Protect from vehicular and foot traffic. Control weeds by mowing.
TABLE 1
TEMPORARY SEEDING SPECIES,RATES AND DATES
Species Lbs./Acre Lbs./1,000 ft.2 Seeding Dates
Oats 90 2 Early spring—July 1
Cereal Rye 90 2 Early spring—September 30
Wheat 90 2 Early spring—September 30
Perennial Ryegrass 25 6 Early spring—September 30
420 Attachment 1:3 Supp.#16,12/13
CREVE COEUR CITY CODE
NATURAL RESOURCES CONSERVATION SERVICE
ILLINOIS URBAN MANUAL
PRACTICE STANDARD
PERMANENT SEEDING
(acres or square feet)
CODE 880
DEFINITION
Establishing permanent vegetative cover to stabilize disturbed areas.
PURPOSE
The purpose of this practice is to reduce erosion and decrease sediment from disturbed areas
and to permanently stabilize such areas in a manner that adapts to site conditions and allows
selection of the most appropriate plant materials.
CONDITIONS WHERE PRACTICE APPLIES
1. Disturbed areas where long-lived vegetative cover is needed to stabilize the soil.
2. On other areas where cover is desired.
CRITERIA
Selection of plant materials — Selection of plant materials will be based on climate,
topography, soils, land use, available light, aesthetics and maintenance. See Tables A, B and C
for selection of grasses and legumes and ground covers. For trees and shrubs see practice
standard 985,TREE AND SHRUB PLANTING.
Site preparation—The soil must meet minimum requirements as a good growth medium.
a. Must have enough fine-grained(silt and clay)material to maintain adequate moisture and
nutrient supply and sufficient pore space to permit root penetration. The bulk density
should be one and two-tenths (1.2)to one and one-half(1.5) grams per cubic centimeter.
Clay content should not exceed thirty-five percent(35%).
b. The depth of suitable rooting material to rock or impermeable layers shall be twelve (12)
inches or more,except on steep slopes where adding soil material is not feasible.
c. A pH range of five and one-half(5.5)to six and one-half(6.5).
d. Be free of toxic amounts of materials harmful to plant growth.
420 Attachment 1:4 Supp.#16,12/13
LAND DISTURBANCE CODE
If any of the above criteria cannot be met by the addition of modifying materials, i.e., lime or
organic material, then topsoil shall be applied in accordance with practice standard 981
TOPSOILING.
The following materials may be used where needed to improve the soil conditions for plant
growth.
Peat—Appropriate types are sphagnum moss peat, hypnum moss peat,reed sedge peat or peat
humus from fresh water sources.
Sand—Clean and free of toxic materials.
Vermiculite—Horticultural grade and free of toxic substances.
Rotted manure — Horse or cattle manure not containing undue amounts of straw or other
bedding materials. Incorporate to reduce potential odor problems.
Thoroughly rotted sawdust—Free of stones and debris.
Sludge—Treated sewage and industrial sludges should be used only in accordance with local,
State and Federal regulations.
Where extensive excavation is to be done and the subsoil materials will not be suitable for plant
growth,remove and stockpile existing topsoil and reapply when final grade is achieved.
Install necessary mechanical erosion and sedimentation control practices before seeding and
complete grading according to the approved plan.
Seedbed preparation:
1. Apply fertilizer and other required soil amendments prior to final seedbed preparation.
2. Prepare a seedbed to a minimum depth of three (3) inches by disking or other suitable
means. All tillage operations should be on the contour.
Fertilization—Lime and fertilizer needs should be determined by soil tests. When soil tests are
not available, apply one thousand (1,000) pounds per acre or twenty-five (25) pounds per one
thousand(1,000)square feet of 12-12-12 fertilizer or equivalent.
Seed—Certified seed will be used for all permanent seedings whenever possible. All legumes
will be inoculated with the proper inoculant prior to seeding.
Seeding—Seeding may be done by any of the following methods:
1. Conventional.
420 Attachment 1:5 Supp.#16,12/13
CREVE COEUR CITY CODE
a. Prepare seedbed and incorporate lime and fertilizer.
b. Apply seed uniformly at a depth of one-quarter('/<)to one-half(1/4) inch with a drill
(band seed) or cultipacker seeder or broadcast seed uniformly and cover to one-
quarter('/a) to one-half(1/4)inch depth with a cultipacker or similar tool.
c. Mulch following seeding.
2. Hydroseeding.
a. Final seedbed preparation should leave the soil surface in a roughened condition.
b. Lime and fertilizer should be incorporated prior to seeding unless they are to be
applied at the same time of the seed (applying lime with a hydroseeder may be
abrasive to the equipment).
c. No less than one thousand(1,000)gallons of water per acre will be used.
d. When seeding legumes, increase the recommended rate for inoculant four(4)times.
e. If seed and fertilizer are mixed together, they should be seeded within two(2)hours
of mixing. Beyond two(2)hours, a full rate of new seed may be necessary.
f. Cultipacking or harrowing following seeding will help insure a better stand.
3. Dormant seeding may be made between November fifteenth (15th) and March first (1st)
by either of the following methods:
a. Conventional method. If soil conditions are suitable during the dormant seeding
period, apply lime and fertilizer, prepare the seedbed and seed as specified in this
specification. Increase the seeding rate at least fifty percent (50%). Mulch
following seeding.
b. Overseeding method. Liming, fertilizing, seedbed preparation and mulching may be
done after August thirty-first(31st). The seed shall be broadcast uniformly over the
mulch between November fifteenth (15th) and March first(1st). When this is done,
increase the seeding rates fifty percent(50%).
Sprigging—Some plants cannot be grown from seed and must be planted vegetatively. Sprigs
are fragments of horizontal stems or roots that include at least one (1) node (joint). Sprigs may
be planted by either of the following methods.
1. Broadcast sprigs and press into the top one-half ('/2) to two (2) inches of soil with a
cultipacker or a disk set straight so that the sprigs are not brought back toward the
surface.
420 Attachment 1:6 Supp.#16,12/13
LAND DISTURBANCE CODE
2. Make furrows four (4) to six (6) inches deep and two (2) feet apart. On sloping areas,
make furrows perpendicular to the slope(on the contour). Place sprigs in the furrows with
one(1)end at or above ground level. Close the furrow when plants have been placed.
3. Plant sprigs in furrows with a tractor-drawn transplanter. Sprigging should be done
during specified seeding periods.
Planting ground covers —Most shrub and vine type ground covers are available as bare root
stock, balled and burlapped or in containers or pots. On flat areas where erosion is not a
problem,prepare the site by tilling to a depth of ten(10)to twelve(12) inches. On sloping sites,
till two(2)to three(3)inches deep to incorporate needed soil amendments.
When planting individual plants, prepare a hole slightly larger than the container or ball and
deep enough that the roots can extend to the bottom. Most ground covers should be planted
one-half('/2) inch to one(1)inch deeper than they have grown in the pot or container.
Mulching — All permanent seedings and plantings will be mulched upon completion of seed
application or planting. Refer to practice standard 875, MULCHING. When planting ground
covers, it may be advantageous to mulch prior to planting.
CONSIDERATIONS
Protect the area from excess runoff as necessary with diversions, grass-lined channels, terraces
or sediment basins.
Evaluate the capabilities and limitations of the soil to be seeded or planted. Special attention
needs to be given to soil pH, texture, internal water movement, steepness and stability in order
to plan the appropriate treatment.
Plant species should be selected on the basis of soil type, planned use of the area and the
amount or degree of maintenance that can be devoted to the area in the future. Consideration
should be given to using native vegetation where possible. Land use and maintenance, whether
residential, industrial, commercial or recreational, can be divided into two (2) general
categories:
1. High-maintenance areas are mowed frequently, limed and fertilized regularly and either
(1) receive intensive use (e.g., athletic fields or golf courses) or (2) require maintenance
to an aesthetic standard (e.g., home lawns). Grasses or ground covers used for these
situations are long-lived perennials that form a tight sod and are fine-leafed and attractive
in appearance. They must be well adapted to the geographic area where they are planted
and able to endure the stress of frequent mowing. Sites where high-maintenance
vegetative cover is desirable include homes, industrial parks, schools, churches and
recreational areas.
2. Low-maintenance areas are mowed infrequently or not at all and do not receive lime and
fertilizer on a regular basis. Plants must persist with little maintenance over long periods
of time. Grass and legume mixtures are favored for these sites because legumes are a
420 Attachment 1:7 Supp.#16,12/13
CREVE COEUR CITY CODE
source of soil nitrogen. Mixed stands are also more resistant to adverse conditions. Prairie
grass may be appropriate but are slow to establish. Sites suitable for low-maintenance
vegetation include steep slopes, stream or channel banks, some commercial properties
and road banks.
Fertilizer, lime, seedbed preparation, seed coverage, mulch and irrigation should be used as
necessary to promote quick plant growth.
Vegetation cannot be expected to provide erosion control cover and prevent soil slippage on a
soil that is not stable due to its structure,water movement or excessive slope.
The operation of equipment is restricted and may be unsafe on slopes steeper than 3:1. Where
steepness prohibits the use of farm machinery, seedbed preparation, fertilization and seeding or
planting may need to be done by hand.
Mulching, in addition to preventing erosion during establishment, may make the difference in
success or failure of the seeding. When selecting mulching materials, consider steepness and
length of slopes, areas of concentrated runoff water flow and materials that will provide
protection to the site in case the seeding or planting fails.
Moisture is essential for seed germination and seeding establishment. Supplemental irrigation
can be very helpful in assuring adequate stands in dry seasons or to speed development of full
cover.
PLANS AND SPECIFICATIONS
The plans and specifications for seeding or planting and mulching shall include the following
items:
1. Seeding mixtures and rates or plant species and density.
2. Site preparation.
3. Fertilization.
4. Seeding or planting methods.
5. Seeding or planting periods.
6. Mulching materials and application rates.
All plans shall include the installation, inspection and maintenance schedules with the
responsible party identified.
420 Attachment 1:8 Supp.#16,12/13
LAND DISTURBANCE CODE
OPERATION AND MAINTENANCE
Generally, a stand of vegetation cannot be determined to be fully established until soil cover
has been maintained for one(1) full year from planting.
Protect the planted area from human, animal and vehicular traffic until the stand is adequately
established.
Inspect all planted areas for failures and make necessary repairs, replacements, reseedings and
remulching within the planting season, if possible. If a stand has less than forty percent (40%)
cover, re-evaluate the choice of plant materials, quantities of lime and fertilizer, seeding or
planting methods, time of seeding or planting and available light and moisture. Re-establish the
stand following the original specifications,but with modifications based on the evaluation.
Where an adequate water supply is available, irrigate to keep the seedbed moist (not wet) for
seven (7) to ten (10) days after seeding. This may require watering daily the first (1st) week,
especially during hot weather, and less frequently thereafter. Water application rates must be
carefully controlled to prevent runoff and erosion. Inadequate or excessive amounts of water
can be more harmful than no supplemental water. Irrigation is seldom needed for low-
• maintenance seedings made at the appropriate time of the year.
Both low- and high-maintenance seedings should be fertilized one (1) year after planting to
strengthen the plants and insure proper stand density. The following recommendations may be
used:
1. For grass only stands, apply five hundred(500) lbs./acre(12 lbs./1,000 square feet)of 10-
20-10 or equivalent.
2. For grass-legume or pure legume stands, apply five hundred (500) lbs./ac. (12 lbs./1,000
square feet)of 10-20-20 or equivalent.
3. The best time to apply fertilizer is between March first (1st) and May thirtieth (30th) or
August first(1st)and September thirtieth(30th).
Do not mow high-maintenance turf seedings until the stand is at least six(6) inches tall. Do not
mow closer than three(3)inches during the year of establishment.
Low-maintenance stands should be mowed only as needed to control weeds. Mowing should be
done before weeds go to seed. Keep mowing height above the height of the seeded plants. Vine
and shrub type ground covers may need hand weeding until the area is well covered.
Herbicides may also be used for weed control. Apply all herbicides according to rates specified
on the label.
420 Attachment 1:9 Supp.#16,12/13
CREVE COEUR CITY CODE
TABLE A
LOW MAINTENANCE GRASSES AND LEGUMES
Sunlight
Site Suitability Availability Seed Mixture Seeding Rates(PLS)
D WD W FS PS S Lbs./Acre Lbs./1,000 ft2
X X X Smooth bromegrass or 24 .55
tall fescue plus
Alfalfa or birdsfoot 8 .20
trefoil
X X X X Smooth bromegrass or 24 .55
tall fescue plus
Crownvetch 16 .20
X X X X Tall fescue plus 12 .30
Timothy or Redtop plus _ 2.5 .06
Birdsfoot trefoil 12 .30
X X X X Switchgrass 1/ 8 .20
X X X Switchgrass 1/plus 2 .04
Big bluestem plus 6 .14
Indian grass 6 .14
1/Warm season grasses
D=Droughty FS=Full Sun WD=Well Drained PS=Partial Sun W=Wet S=Shady
TABLE B
HIGH MAINTENANCE SEED MIXTURES
Sunlight
Site Suitability Availability Seed Mixture Seeding Rates(PLS)
D WD W FS PS S Lbs./Acre Lbs./1,000 ft2
X X X X Kentucky bluegrass. Use 88— 130 2—3
at least 3 adopted
varieties
X X X Kentucky bluegrass plus 110 2.5
Red fescue 44 1.0
X X X X X X Tall fescue(turf type) 220—260 5—6
X X X X Red fescue plus 110 2.5
Kentucky bluegrass 44 1
X X X X Kentucky bluegrass plus 86 2.0
Perennial ryegrass 43 1.0
1/Warm season grasses
D=Droughty FS=Full Sun WD=Well Drained PS=Partial Sun W=Wet S=Shady
420 Attachment 1:10 Supp.#16,12/13
LAND DISTURBANCE CODE
SEEDING DATES
SPRING
Northern Illinois Early Spring to June 1
Central Illinois Early Spring to May 15
Southern Illinois Early Spring to May 15
FALL
Northern Illinois August 1 to September 1
Central Illinois August 1 to September 10
Southern Illinois August 1 to September 20
DORMANT
Northern Illinois November 1 to March 15
Central Illinois November 15 to March 1 -
Southern Illinois November 15 to March 1
TABLE C
GROUND COVERS (Shrubs and Vines)
This table contains a list of ground covers commonly used in Illinois. When selecting species to
use, check with a local nursery for availability of plants, growth characteristics and
recommended spacings.
Bugle
Wild Ginger
Barberry
Dwarf Quince
Crownvetch
Creeping Cotoneaster 4"—2'prostrate
Mock Strawberry
Euonymus—Several species(Winter creeper)Evergreen
English Ivy
Daylily
Evergreen Candytuff
Juniper(Creeping)
Pachysandra(Japanese spurge)
Creeping Phlox
Shrubby Cinquefoil(Potentilla)
Dwarf Alpine Current
Stonedrop(Sedum)
Creeping Thyme
Common Periwinkle(Vinca)
420 Attachment 1:11 Supp.#16,12/13
CREVE COEUR CITY CODE
FIGURE 1,SILT FENCE
EXTRA SIRENc7N FILTER FABRIC
NEEDED Nf i cff we AAfSN SUPPORT
STEEL OR I„ �,.
WOOD Post ::,:' {{
•. • ••rN 1
ATTACH FILTER FABRIC ...,1'N�t�"�.•.••:::,;:n'�' g
�yt•a�e� n �t•��♦ 1� .N•;.1:;- N0•M•N•..N;s+" b
stl uear T UPSTRE i N!!N M•. N•NNNN•.1..+:..'+ 1.
tep N�.+ N .•.NN.�..,1, N
SIDE OF P!?S7 illa;ia„„::: ;::;; :'................."�:'"f;"'"::::::i 11.1';i I*. :-•;••-.•-'''.7—
•. N/1 IN •N•i!!!N ,, i!,N1 111 • ,• FLO
1Ni11Ni�Nfn INN!N•'::°:::11 11 1 I'll. •'
. •
I�INN•NINAIIII•' !!l+jN11 1'I1 j1 4 i . � •
it iiir M•1pNijj11N1111111 Il • •. ..'''.
U 1N • .
iigrialre,',01:4/: v ,o' .") ANxl14AU SPAC/NC r1 i
rj�jv 0 )' 1/We su PORT'FACE
6' r,.e/,(l MIUMI W SPACMIG A TINOUT
WE Su PORT FENCE
PONOIN: NEXNT PONON^itEIGNT
3 PLOT
f PLOW
,1' aptT? ` �i
`
s'.rs' No x ,sa.,l.l
'I TI
f 1REACN WIN
IMCKat -
=MICR DRUM �•�•p/�1I� Y
1 •- t!, wlaavV a *.ii 3
1 NOTES'
7. St r FENCE SNAIL SL'PLACED ON SCOPE NOT tD soli F
eXWTOIRIS i MAXIMIZE AMONG EFFICIENCY.
SIVRAI EVENT AM REMOVE =WIT WEN
fro cEsswT. 9' (225m•.1) A/AXAIRA}/
RECaED STORAGE HEA^iN7
I RE710r£D SEDIMENT .SHALL ETE DEPOSITED
IV AN AREA T}AAT matt. NOT coV71es:or
S£AIIIE]VT OfT SAE AND CAN 0.'PERANNENaaY
STABRIZED.
1 DATE
C VE
Cs i:.002
alitiep SILT FENCE FtcuwzE
r
~�'1949'�v
420 Attachment 1:12 Supp.#16,12/13
LAND DISTURBANCE CODE
FIGURE 2,CONTINUOUS BERM
\cl I
N
Ait
rrre r'I�. !iIti
,....:....Asr..y airira 0 t r _ lf, r
SLX 0
CURS
f TYPICAL APPLICATION
PE WIDER SEDIMENT 54RRIER
I
DRAINAGE CHAMBER (OP7IONAL) i
final. AGGREG4T i.
.J' (Im) F�L
MINIMA"
o r
1
Loco( ORAII 4CE CHAMBER7 FRONT VIEW 6
AT LOW SPOT MR A0(04441E
Aft 10E Of PONDEO =RAI MMTER
i
i
6' (2m)
HOC RING
nol
WOMEN OR Eo..-t1 .w.ww Z.i 1 041 A
MTV-MO�EN ,may P0142NG'HEIGHT
GEOSYWTME TIC o•. 6 ,yQtn)
�.e. gege
•---APPROX. If
(Joan)
SIDE VIEW
s14 DATE: 412120Q2
CONTINUOUS BERM FIGURE:
� filtf � 2
.o
''949'
420 Attachment 1:13 Supp.#16,12/13
CREVE COEUR CITY CODE
FIGURE 3,STRAW BALES/GRAVEL DROP INLET SEDIMENT BARRIER
A
ad.� •. �•. .
WOOD STAKES
METAL REBAR • y -• 1�i r: ' STRAW BALES TIGHTLY
• •; �:-s?..t•-a STACKED OR OFFSET
; " CORNERS AS SHOWN+:
• NE fc;..1;*
DR
AW
CRATE `a�
•�:�` GRAVEZ
5X' SLOPE A
PLANInk*
HEIGHT STRAW
64LEs G74AVEZ
BACKFILI
II IMO It
II EMI I11111.11111111
I
11 II .- %DROP
. A�CET ♦ EMBED STRAW BALL"
V 0 V
S�L.
SECTION A—A
T. DROP INLET SEDIMENT BARRIERS ARE 7t BE
USED FOR SA4AL1. NEARLY LEVEL DRAINAGE
AREAS (I F'S TMMN 5X)
2. EMBE•D THE BALES 4 (I&',, r) INTO THE
SOL AND OFFSET CORNER'S OR PLACE BALES
WITH ENOS TIGHTLY ABUTh%. CRAG BACKFI L
WILL PREVENT EROSION OR FLOW AROUND NE
BALES
I THE TOP OF THE STRUCTURE (PONDP
MUST BE WELL BELOW THE GROUND
ETEWITION DOWNSLOP£ TO PREVENT RUNOPT
FROM BIPASS/ND THEE INLET EXCAVATION OF
A BASIN ADJACENT TO THE DROP INLET OR
A TEMPORARY DIKE ON THE DOWNSCOPE OF
THE STRUCTURE MAY BE NECESSARY.
VE DATE:
d/212002
o ' ` 3
, STRAW BALES/GRAVEL FIGURE-
DROP INLET
V�-rya9= SEDIMENT BARRIER
420 Attachment 1:14 Supp.#16,12/13
•
LAND DISTURBANCE CODE
FIGURE 4,SILT FENCE DROP INLET SEDIMENT BARRIER
\ rA /
?Lop
i
111 \ ,
......, Q \ ;
Dil11111........ l' --":21 '''
hnca "1
1 II r
LESS Tt _36J_ -tau
SL O
7 E
/ LA \
PLAN VIEW / ;
ATL*O1 FILTER FABRIC SECURILY
TO ?Xs (lObX50)} MoaOD TOP FRAME i
MAd1E: Gw£J41'./pftsC FABRIC AFDC' STABILITY 4
TO NEXT SLAKE
_.�-_ _ __ _ ���u L M
�• �i n• S ?xs wax
(O.S n) J6" A4tX ��i�eiy�fi,.��ei��� 4 Or Di
W7rk'i#4 S >4 4.41-.4cr a: 1 7
•IC A/A1f�- X •
. `• , INLET ,
NOTE SECTION A—A
1. oRoP str117 S 2 T eARRlERS ARE TO E'E
uSED FOR SMALL. Y LEVEL DRAaw!YE
2. USE fX4 (1 m) WOOD OR irW ENT
METAL STAR J' (1In) MINIMUM LEACTH. MOT TO sc
J. AVSTALL 2'X4' (l0VX5Omm) woOD >OA "RAW*
TO AKSu RE STAB,}7..
4. THE 7 O Or THE Mew (PONDIN7 HEICNT)
AK/ST BE lIEZL BELOW 1TfE GROUND ELEia770N
DOMIYSLOPE TO PREWNT RuNO F FRgw BY—
PASSWG THE INLET: A TEMPORARY DIKE A44 Y
B£ NECESSARY ON THE DJwNSLOP£ SIDE OF
4 THE STRUCTURE.
S
4
E C.• DATE: 4121160.
c SILT FENCE FIGURE.
•, DROP INLET
r �•1 .0• SEDIMENT BARRIER 4 I
420 Attachment 1:15 Supp.#16,12/13
CREVE COEUR CITY CODE
FIGURE 5, BLOCK AND GRAVEL DROP INLET SEDIMENT BARRIER
A
GRATE •o; •o Kf •o = .
i o.. o•�•, COhCRE7F
1 A ' New'' BLOCK
:°a� t000J0 ,o
+'"acre Q ;t-x;;0-
wisp
4 �.. •'_111PYi,.;:Tig.:. GRAVEL 6NCtal i
(> • h� .1"ol' ,•• J/4- (20mn,) AI/
Wr
( -'`•: rood :o ••�: :4
cli
b t}
PLAN VIEW
CONCRETE BLOCK *IRE SCREEN DR
GRAVEL B4CKf'nL ""4* OW
• ALTER FABRIC
~INC HT.
iv
lie I3 '
! n/
SECTION A — A
morEs-
1. DROP MEET S(L'W(NT BARRIERS ARE 70
BF USED FOR SMALL. NEARLY LEVEL ORAINACE
AREAS. (LESS THAN Ste)
2. DCI BATE A BASIN OF SLIFTICZENT SIZE
ADJACENT' 7V 7NE DROP INLET
.x 7TE TOP OF PE S7RUCI jPONDAG
t HMO) MUST BE' NEU BELOW 77 GROUND
E71141 C.W DUNNSLDPE 7'0 PREVENT RUNOFF
FROM BYPAS51M THE ?LE7: A TEMPOIMRY
DIKE MAY BE NECESSARY ON 77-1E Oo SYME
1:10E Of THE S7RUC7L.WE.
l''''"
r' `DATE: aru2ooz
io
t + C.ge, BLOCK AND GRAVEL FIGURE:
r DROP INLET
1 • (9a9•=° SEDIMENT BARRIER5
420 Attachment 1:16 Supp.#16,12/13
LAND DISTURBANCE CODE
FIGURE 6, CURB INLET SEDIMENT BARRIER (SANDBAGS)
BACK OF SIDEWALK - A
GRAVEL F1[LLD SANDBAGS
ARE STACKED nairLY CATCH BASIN
BACK OF CURB,\
CURB NUT
1
►A PLAN VIED
PONDING HEIGHT CURB AYLL7
SPNLLWAr ELK
a ' � >0 jam•/
,\ CATCH BASIN
SECTION A — A
NOTES:
1. PLACE CURB TrP£ SEDIMENT BARRIERS ON CEN7Z r SLOPING STREET SEGMENTS
MN£RE WATER CAN POND AND ALLOW SEDIMENT TO SEPARATE MOM mawOFF.
2 SANDBAGS, OF EITTsfR 8rRLAP OR WOVEN CEOTEX77LE FAQ AIPr FILLED
MTH CRAWL. LAYERED,AND PACKED T7CHTLY.
J. LEAVE ONE SANDBAG CAP IN THE TOP
ROW TV PROVIDE A SPILLWAY FOR OVERIZ W
4. INSPECT BARRIERS AND RDIOVF SEDRA-NT
AFTER EACH SRIRAI EVENT. SEDIMENT AND
GRAVEL MUST BE REMOVED FROM THE
TRAVELED Y44 r IMmEDNTFL Y.
VE c� DATE: 4/2/2002
Cr+ CURB INLET FIGURE:
f 6" SEDIMENT BARRIER �+►
•194 . (SANDBAGS)
420 Attachment 1:17 Supp.#16,12/13
CREVE COEUR CITY CODE
FIGURE 7, CURB AND GUTTER SEDIMENT BARRIER
SICK Of SIDEWALK
BURUP SILKS TO C41 Jl BASIN
OVERLAP 0W70 CURB
CU48 INLET
B4CK OF CURB
111111111111.111111111111111
OMIMMMIMM111M1MMf
Rutigcp r��uarrr
1111111111111111111111111111111111111
1111111111111141111111111.1111
RUNOFF" ,. MMM1M�a��
auY \ �a����
/ /
CRAVEL FILLED SMIDBACS
STALKED nGH2T
PLAN VIEW
MOMS.
T. PLACE CLAPS TYPE SEDIMENT 84 I?IERS OWN CENILY SLOPING' STREET
SEGAIEMS WHERE WATER CAN POND AND ALLOW SWAI M' 70
SE134RA7£FROM RUNOFF.
2. SUYABAOS Or EIDER ISVRIAP OR WOW/ GE07EXTILE'FA&RIr.
ARE FILLED WIN GRAVEL., LAYERED MID PACKED woozy-.
3. LEAVE A ONE S4MTB4C GAP AN RE TOW ROW 7D P14OW E A SPILLWAY
FOR OVERFLOW
4. IN,SPECT B4PR RS ANT) REMOVE SEDatsvr Ai7ER EACH STORM EVENT.
SEDIMENT AM, MOEZ MUST BE REMOVED FROM THE TRAVELED *4Y
MIMED 17f Y.
•
C )AT : 4/2/2002
CURB AND GUTTER FIGURE:
SEDIMENT
t944=° BARRIER
420 Attachment 1:18 Supp.#16,12/13
LAND DISTURBANCE CODE
FIGURE 8, CURB INLET SEDIMENT BARRIER(BLOCK AND GRAVEL)
c BACK OF SIDEWALK 1r A CArcx BASIN
0 1 1
t 1
2X4 J{t OO STUD
BACK Or CURB C?ACRE7e BLOCK
CURS INLET�
1
ram*.-• .:# 1;,.4: t 4'4 %.-
q, 4 'y qt d,..�.,�,.�, {,fi., *NW • *+, {? `•-
WIRE SCREEN OR
I
ra.7ER "woe A CONCRL7Z BLOCK
t
J/4-+ DRAIN GRAM. PLAN VIEW
1 (2Onm)
(71VERFLOW C�'w=R.7E &fJl^�
.7.,„lei /
• `' ,•r !'" CURB INLET \j
WIRE SCREEN OR
FILTER FABRIC Graf 'Ashy ‘'.'s,;
t
.•'
1E$ (rearm r s1
MOMS:
I. Use BLOCK AND GRAVEL TYPE SEDWIDVT
BARRIER WHEN CURB .ET IS LOCATED IN
r�ATERGaray C N SLOPSWG SAMUTND ALLOW SEz 'N" ERE T SECTION A - A
SEPARATF FROM RL/NOI7..
2 BARRIER SHALL ALLOW FOR OVERFLOW
fROM SEVERE STORM EVENT
_I INSPECT BARRIERS AND REMOVE SEDIMENT
AFTER EACH STORM EVENT. S(L W Nr AND 1
GRAVEL MUST BE REMOVED FROM THE
TRAvELL7) WAY IMMEDIATELY.
4V£cao DA'!E: 1I2I2902
CURB INLET FIGURE:
r ;� SEDIMENT BARRIER
v, (BLOCK AND GRAVEL) 8 1
•19a4`
420 Attachment 1:19 Supp.#16,12/13
CREVE COEUR CITY CODE
FIGURE 9, STRAW BALE DIKE
tt
(1.5-1.8m) 1 t
I POtsChVG o. I I
s�
II z.l V
EMBED STRAP BSI[£
INTO SOIL
II SECTION A — A
V
ANGIf
'SS'AKE B EOTO
PROM( non- FIT
IT n�1 R it r A 111 ff A
.n 1 It 4 II Xi tl n
11
11
U IN A �� U
SECTION B — B Nt7OOEN ST,yE
OR RE84R DRIVEN
THROUGH 61ALE.
PLAN
T. T STRAW BOLES ShNti SE PLACED
ON St 011- cagoule
2. 811.ES 10 6E PCACED AV A ROW $VPI 7}E'
ENDS TIGHTLY AIIIIMMO
J. KEY IV 6141.E3 TO PREHL T Ef87.''iR'N/ OR FLOP
UNDER BALES
CtS Qs
DATE: I2l2OO?
STRAW BALE DIKE FIGURE:
.o
ftp 9
'l949'
420 Attachment 1:20 Supp.#16,12/13
LAND DISTURBANCE CODE
FIGURE 10,SEMI-PERVIOUS STRAW BALE SEDIMENT BARRIER
R PONDkW HEIGHT
11 flaw
f7L7ER FABRIC ..._____
-►• o SEDIAIENT STORA„E
CURED S7R4W BALE
4' (IODmm) AGNIAILIN 1
V INTO SOIL
SECTION A - A
STRAW e4115
TIGHTLY ABUIRAIG
g
t
1 r
1 �l �
/ ;Mafte: i RCJF:K . ,
F
. DRAIN ROCK
/ 17/2" A/IN (40 nm) PLAN
WOODEN STAKE
TAE OF BANK OR REB4R DRIVE
PO#JT :' TWOLIGH BALE N
.14411111 °
"V ''' 'r` '4%:t. PC S .la; �fir_'-''u�RC;047iC/
it . 0.''.'Y-M:• -•...:.:: ...._-e+,,,,#•._:;e:,_ - �
1 KEY 84Mr�BTH '`A
ENDS OF BARRIER VIEW LOOKING UPSTREAM
i NOTES'
1. PLACE SALES PERPEMYC1A'AR 10 FLOW
2 EMBED THE B44! 4- (7(Y mn) NM THE
t sou AND KEY ME ENO BOLES AWTO rhf
TO PREVENT FLOW AROL 10
J. 1144ES PLACED AN A ROW w!iH DVS
TIGHTLY.IBL/TTIAG
t 4. POW* A' SHALL BE HCHER THAN
PCYNT 'B'.
5. SPILLWAY HEIGHT SHALL NOT EXCEED
24' (a6 m.
E a DATE: ann�az
to.
' SEMI-PERVIOUS FIGURE
). STRAW BALE
.;{;�,.c SEDIMENT BARRIER 1 0 i
420 Attachment 1:21 Supp.#16,12/13
•
CREVE COEUR CITY CODE
FIGURE 11,TYPICAL SEDIMENT BASIN
EMERGENCY
SPILLWAY
TOP OF /ram
EMBANKMENTEWtlPEL
ttr� '• f
SE01r1/ENTRISER $07N_.—.....o", 4111W iWIMMIw
84S/N TRASH RACK
OUTLET
PLAN
TRASH RICK SlevocietE+v£�SHLLNAY s T
CLEAN001 SPathiK4Y ELEV. WITH VEGETATION
MARK •
tR7.73344'0
2• tsn,) MET 1,
ENGINEERED 4• B ZAY
mg &EVRREZ
PLACrED nu ED.IN Y RS. }ErSTA t
arxrD
--Iltt1hQ11lthllNI lllhlJlItlltghj tltilllltttlttitllltlt�l.*
N ANTI-FLOTATION ANTI-sm� COLLAR
srOcx' TYt�t Or 2
SECTION
NOTES
1. THE TEAIPOR+RY SELF&Mk DESIGNED
BY A O tALIFIED PROF SSION41_ IS REO IED
FOR DISTURBED AREAS GREATER 7?4N 5 ACRES
1l Th V A DR.u 4c(AREA LESS TI,NN IX ACRES
2. THE SEDItIENT 84SIN WILL BE REZIOWD $T I-
AV 3 1..ARS
4/212002
sv
• ``
TYPICAL SEDIMENT T' BASIN FIGURE:
'19a4'••
420 Attachment 1:22 Supp.#16,12/13
LAND DISTURBANCE CODE
FIGURE 12, TEMPORARY DIVERSION DIKE
_2•
(0.6m)
COMPACTED
SOIL Fie (0.3m) MINIMUM
PROTECTED
'TLC SLOPE 44 .414
•o now
ALL SLICES 2.J %`'
OR FLATTER
VEGETATION OR RIPR4P
STAB/UZA7ION
TYPICAL FILL DIVERSION
2
(040)
1.
COMPACTED
sat c le (0.5m) MINlimar
o •
•o ,
ALL SLOPES 2.
OR FLATTER
VEGETAPON OR RIPRAP
STAR/7ATXW
TYPICAL TEMPORARY DIVERSION DIKE
T. 7)E CHANNEL BENNO THE DIKE SHALL MOE
POSI7NE CRAZE TO A STABILIZED OUTLET.
2 THE oar SriMLL AOEOLJATEL r COMPACTED
71, Pi?&ENT FALURE.
2 THE DIKE S 44LL 61E'STAB1LIZED NMI
TEMPORARY OR PEIWA1V'NT SEEDING OR MPRAP?
("OE c0 DATE. 41212002
` ' TEMPORARY FIGURE:
DIVERSION DIKE 12
'1944 .0
420 Attachment 1:23 Supp.#16,12/13
CREVE COEUR CITY CODE
FIGURE 13,GRASS-LINED CHANNEL TYPICAL INSTALLATION
OvERMAP 6- (150mm) AI/MANUAN 4
/ ''"'« �L EXCAVATE cNANN£t .., . .
` 'ter TO OE.37GN CRAEIE '
.. . •
1r ` ':,., AND CROSS SECTON , •I• i
\(' M..; DESIGN DEPTH .'
. . ,`'i LONGITUDINALOVERCUT CHoWNET. ,:. ANCHOR THE
?' (511mm) RI ALLOW ''"> ''
BULKING DURING SEEDBED ,`a:`
PREPARAngw f . :. 77-al ��//��
r r/rao.rl TYPICAL INSTALLATION j
WITH CROWN
fti.ce,
-
`� ^ BLANKETS 5 f A
4 6(6,
lim,,,,;.."
INTES201'T12IT CHECK SLAT LONGITUDINAL ANC= TWICE(
SI NGCE-LAP SPLICED ENDS OR BEG. t MEW
ROLL IN AN INTERMITTENT CHECK Scar
4-
PREPARE SOIL AND APPLY 4t
SEED PISTALLAV +1 '"t'' <<r• w
ri,:
BLANKETS, ANTS OR OTHER ���; 4
TEMPORAm- CHANNEL LINER ,
#1
SPSTPAI ,.rr. 0;
es 0 et f ..,. `I j`P h'I et I
I
F. N VEZOCITTE5 I rct 2 F7/SEC NIT iv scut
(t 5m/sec) REDUIRE 7FAIPORARY BLAMKE75
MATS OR SIMILAR LINERS TO PROTLrr SEED
AND SOIL UNTIL VEGETATION BECCMIES
ESTABLISHED.
2. GRASS-UMW C,NNN,ELS WITH DESIGN
I ELOCITIES EXCEEDING 6 FT/SEC (2m/sec)
SHOVL O INCLUDE TURF RE7NFC c (MCVT MATS:
c,WIE CO DATE: 4121200:
o ` ' r GRASS- LINED CHANNEL FIGURE.
-,, TYPICAL INSTALLATION I
3
-r94')
420 Attachment 1:24 Supp.#16,12/13
LAND DISTURBANCE CODE
FIGURE 14, GRASS-LINED CHANNEL TYPICAL CROSS SECTION
1\. 150-225mm)
FILTER___/ �\, y. KEY IN FABRIC
FABRIC �~
CRASS-LINED WITH ROCK CENTER
TYPICAL V—SHAPED CHANNEL
CROSS—SECTION
\ ." (150-22Snm)
KEY NV FABRIC / `—rx rE i'
FABRIC'
WITH CHAN Z LAMER N7TH RC)G�C C£NT£R
FOR BASE FLOW
TYPICAL PARABOLIC CHANNEL
CROSS—SECTION
(5omm) TO ALLOW
BULIMIC meow SEEDBED WIN RACK CENTER
PIRF.PAI24170,/AND GROWTH nurR FOR BASE FLOW
TYPICAL TRAPEZOIDAL CHANNEL
CROSS—SECTION
E Cn DATE: 4/212082
0 NSF GRASS- LINED CHANNEL FIGURE:
v
TYPICAL CROSS SECTION 14
t"L94Q'V
420 Attachment 1:25 Supp.#16,12/13
CREVE COEUR CITY CODE
FIGURE 15, SLOPE DRAIN
7".•
SK7N 11dKf
...
a STANDARv METAL
--\4 >/f/j(��� END SECTION
�\r `._.r� jam.' O'•,' i
wit STRAP Veit:
.;i;�.••
[ I Ilk Ill Iil '1 =- 'I� :'.S
E
*illi� • Ts FLEXIBLE tXNWD4W ..': -.":.
_ OR PXAS17C PIPE OR •.0'40..,+ •
SEWN ALTER `a p
`sew° a
MEET 1
PLAN VIEW
DIVIDeVON
DIKE
ISLAND
OVER DuET _, S R4P
i 4.-:1
t,' 1t �r�11
'L OUTLET
fir, -. .t.:.f:
SECTION
kevE 0 DATE.
° 4/2/21102
SLOPE DRAIN FIGURE.
1949'�~ 15
'
420 Attachment 1:26 Supp.#16,12/13
LAND DISTURBANCE CODE
FIGURE 16, ENERGY DISSIPATOR
OVfRFALL-�
ELEVATION
•
IIIIlIlIIIig `+ 0• o o`+ t...•.•.':, '•t+ :. •4 o• • ,.•-74,(E .\�
MATERIAL, ELEVATION I
r?AG9rNESS (•d) = r.s x MAX. ROCK aiwET£R - Li (150mm) MIN.
SECTION
t
1
0.5XD 1
MIN. Lo a 4.5 x _D'MIN.
D' = PIPE-AMETEK
•
t 1
•
•#. areforti.8 ROOK CSC �o ' a
.1)‘ iggillillid.74:40:,...•
i SOX SELL OF 00'�• 4.0 x D
. ••. IMW 6' 1S&mn MN. DAt •
• MAC
$ •I_... � •. V •ao•.o0
�.�� - • •
/ 1
._____ ___________„...„....._: �°�.i".••'�• �i��• '• `tea: i t
PLAN
i
i T. 7.0• = LENGTH OF APRON DISTANCE La' SHALL 6' OF SUFFICIENT
LENGTH rn aWA r.r£Etx
2.. APRON SI+FILL BC SET AT A 2ERO GRADE AND ALK,INED STRAIGHT:
o I FILTER MATERIAL SHALL BC# 7!RR FABRIC OR C (150me») MC'K
M#dl&AWW GRADED CRAk L LAYER
1
1
DATE: 41212002
4
° U P ENERGY DISSIPATOR FIGURE:
r 1 6
V
�'l944•
420 Attachment 1:27 Supp.#16,12/13
CREVE COEUR CITY CODE
FIGURE 17, RIPRAP PROTECTION
,• ,1
oft
`�i41 CLASS C1.tS5• 1
av` * a�eo srr' size'
106
,7h
UNDER f2IER !o Acts ,
f7L7ER rABRIC OR MWo AND aeon Nj1� s
"LTV? r (r5dsrm) AinoWl War / —ve
KEYWAY AT 7O7E
Of SLOP(
TYPICAL SECTION
ACTE
_ 17•0 rNE5 INICAWESS .sou et 0E7EXANNIX BY The
MiAW rO I 7MCNNESS SHALL 1.52 7NE M4XlAVAV STOVE DiaitiEF
Art.ER L S 1744W r (15A,,m).
atiV E C DATE: 4/2/2002
p
‘f eta
RIPRAP PROTECTION FIGURE:
.64' 1 7
420 Attachment 1:28 Supp.#16,12/13
LAND DISTURBANCE CODE
FIGURE 18,ROCK LINED CHANNEL
f
1
t
O SIC:N!HEIGHT (N), wro H AND STONE SIZE SIiNLL f
BE li7ERAfNE72 BY THE(?.GW(ER
f
c
t
i
DESIGN HIGH 1147ER f
i (OEP171 1)£PONtetir UPON FLOW)
G••I,. �:-Tir- ,►T*�„� _
a.
T `C���Z�t�.
2 4.,V ab,
OPFLATTERn •40
FJLTER FARM -/ �� ��j ' 1
AMMAN 6 (1.5anm) THICK LAMER Or r (scan,) Alrl1A A'Al'
DIAMETER DRAIN Atrir. LARGER STEJYVE.SQL[ BE USED
DEPENDENT UPON GRADIENT. Sat TYPE AND DESIGN FLOW
I
t TYPICAL SECTION
f
1
I
r
iI
VE C -DATE. 4P12043 2
C
C 73 ROCK LINED CHANNEL. "'' kF.:
� - 1 8
J•194q.
420 Attachment 1:29 Supp.#16,12/13
CREVE COEUR CITY CODE
FIGURE 19, STRAW BALE CHECK DAM
3 l
VI
p p �i'
r
° ,SPILLWAY ° 1
:-,----F----T-----:-----4, .
CHANNEL BANK PLAN POINT 'A'
.SPILLWAY
'. / ps AN,Y '
\i al") POINT I' li " A��''`—
(/ siiiiirM_
f Ns: ;S
DRIVE STAKE
Ir-24- l �►'SsC11t1
(0.5-0.6m) e
VIEW LOOKING UPSTREAM
PONOINC HEIGHT
-C---
z' •• NE OI TANC'E STAC I THAT POWTS V
n AAA POINTS TJ'ARE O COWL Et�Anav
I
"soma) `t/ P yr �. — — Pgavr �'n n is OPTIONAL
ENERGY
EMBED STT34W MIX 4 (;Laar+rrl) iiii>i N V
1 I V MINIMUM WO SOIL ►ZIj^ f�✓
V SECTION A — A i 1� V
SPACING BETWEEN CHECK DAMS V
T. EMBED BALLS 4" (10Ormn) INTO THE CAVMw *'Y BOWS THE SOV< AND KEY
BALES AN emu? Cr-Al F
2 PONT A'MUST BE HIGHER THAN POINT e.
(SPILLWAY I /T)
.I PLAC£EMUS PERPENDICULAR TO THE FLOW WITH
EWS 77GHTt r A9urrava
s. SPUMY HEIONIT SHALL ACT EXCEED 24 (asm).
5 INSPECT AFTER EACH SIGNIFICANT STORM. ANAA?A/N
AND RD34R PQVMPITY.
VE c DATE: 41212002
O
P3 STRAW BALE FIGURE:
,., .,..
CHECK DAM 1 9
•...-
420 Attachment 1:30 Supp.#16,12/13
LAND DISTURBANCE CODE
FIGURE 20, ROCK CHECK DAM
1,1 A 1$� f 1
'���'�� -air•. .. .
it �‘%�'% :i..,.,,Attie.; �.: .-l!-r.... •. w
Doi oc/ k
A2
VIEW LOOKING UPSTREAM
NOTEt
KEY STONE INTO THE DITCH BANKS 1
AND EXTEND IT BCYOtVD TFE Asyniews
A MINIMIR.I OP lb` TO PREVENT OVER
FLOW AROAD DAM. t
PLOW t
-.._..__-s„ n t
$ ft. ,
SECTION A - A
t' • THE DISTANCE SUCH THAT POINTS 'A' AND
b'ARE Or E LIAL ELNAT10R1. 1
1'
_-tom
w x r�. 1'iO1NT Tr 1
SPACING BETWEEN CHECK DAMS
vyE cc� DATE: 4/212002
C `�' p ROCK !FIGURE:
CHECK DAM ! 20
420 Attachment 1:31 Supp.#16,12/13
CREVE COEUR CITY CODE
FIGURE 21,CHECK DAM
1
r"alm".""mnme"."4"e"""as"m""e"""m"" " e".".."'""m".""--""n"--1
i
I A Iv Ti
/ f ...
A
VIEW LOOKING UPSTREAM
NOTE:
KEY STONE INTO THE DITGH BANKS
AND EXTEM IT ee'YOND THE A! LFTMEN T5
A MINIMUM OF I8' TO PREVENT OVER
FLOW AROUND DAM.
I
ROW
n - !■1►-.0
lb Pt.
SECTION A A
I
VE co DATE: 412R002
it, F ROCK FIGURE.
rt tP .e` CHECK DAM 21
'194,`
a,,,,
420 Attachment 1:32 Supp.#16,12/13
•
LAND DISTURBANCE CODE
FORM E—APPLICATION FOR GENERAL PERMIT
MISSOURI DEPARTMENT OF NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL QUALITY FOR AGENCY USE ONLY
WATER POLLUTION CONTROL PROGRAM Po eOX+ra ....PUG TO&fraur a
►RT JEi'FrJtSON CM,MO tit@
FORM E-APPLICATION FOR GENERAL PERMIT
UNDER MISSOURI CLEAN WATER LAW ARC .Tasra.TTsc
CATaoal.?ItU4 .<0eI40-1 4.I0UID FOR
•h0+a nit►pa A%TOw 00000r1 ONLY 040uaol 0e0r0T
D Y£S D NO
Te
D a. This facility a now in operation under Missoun Operating Permit Numbs(NPOES) MO• OR
D Is, This is a new permit.
Lad wIa W r.d,Tr
a"Io AOOa a stew
art sT•ry ZIP 000a
zap OWNER
must
«Torre
AMMO a snwtci cm
s*•re a coca
230 OPeRATING AUTHORITY
wume
(//, wow
.00asss SMUT mire DO COM
240 FACIliTY CONTACT ‘1."
wee
.were
mu
100 000 11,40T OUT.ALL One 11.1e 5GA. NTTArr. /•itTf N.I(Oesmor t
Outfall Number 1/4 1/4 Sec T R County
Outran Number 1/4 1/4 • T R County
Outtall Number �`}1/4� 1/4 • T R County
UML+i son*Ace.On us,T w _ -worn
Outtad Number Receiving eater
Outfall Number Receiving wider
Outlet Number Receiving water
to w4e.11 Oacawe TITw AylTtaa a T AO
3.30 Does the•• - • for which you are eaeawq a oenmt dtsanarge to a oombinon!sewer system? D YES 0 NO
3,40 Pr+enary SIC coda
150 If the appgea,• M for a storm water permit.list say materials that are stored outride and imposed to storm water.
3.00 Attach a •snowing the location of the facility in Matta to tn.local coed system.Indicate on the map Mee laooay:tee
etc • . •**palms of 0agtarge;and the map section.townshIp and range,
3,70 If this an exerting discharge.subm t a summary a pollutants teat have been arwytso in the pest two years.
4 00 I ce • that I am familiar with the information contained in the soorcation.Mat to the bed of my knowledge and belief
infonnanon is true,windiest and madam eta it granted was p.rTMt•I aq:.e to IbIdO by ON Mipowi Clean Water
NW all IUlei.regulations.orders and d Gagne,aubtact to any egetimate abbeu awabl.tb appMeam ueidat the
• Clean wetter t.aw.of the Missouri Clean Wear Commotion.
• AwO ancu.Trn4 Tine Oa nwTs a.T•Orre PO.wow coot Imo,
e •• re
ul Io,wasswneo
•
w newly nw..
420 Attachment 1:33 Supp.#16,12/13
CREVE COEUR CITY CODE
FORM G—APPLICATION FOR STORM WATER PERMIT
aYLSION Of EMAIRONMEN TAL QUALITY
3 WATER FOLLUTION CONTROL PROGRAM
P0.sox 176 JEFFERSON CJTY.MO 65102
• FORM G—APPUCATION FOR STORM WATER PERMIT
UNDER THE GENERAL PERMIT:LAND DISTURBANCE
L. .ME Of DEVELOPMENT
L PHASE(INDICATE PHASE L II i SO FORTH IF APPLICABLE)
1.NATURE OF CONSTRUCTION ACTIVITY
4.PHYSICAL LOCATION OF DEVELOPMENT(ADDRESS IF ASSIGNED)
S.OATE CONSTRUCTION ISTO$EGIN.
A.TOTAL AREA OF SITE ACRES
T_TOTAL.AREA OF LAND TO BE DISTURBED: ACRES
IL IS A DEPARTMENT OF NATURAL RESCURCESAPPRO41 • • CONTROL ' OPERATIVE W THE CITY OR THE
LEINCORPORATED AREA OF THE COUNTY IN WHICH THE .. . I$ «« 1
OYES ❑NO
IF YES.A LETTER OF APPROVAL OR A COPY OF A F FIRST -.. TH • AUTHORITY IS REDUBIED AND MUST BE
E)G 0SE0 FOR THE PERMIT To BE ISSUED.
(�PLEASE CHECK F ENCLOSED
9,HAS A STOFMI WATER POLLUTION PREVEN• 1 a. DEVELOPED FOR THIS MITT(THIS RAN MUST BE
DEVELOPED IN ACCORDANCE WITH RECIUI•a n . i• .• SPECIFIED WTMRt THE GQ iAL PERMIT FOR STORM
WATER DISCHARGES FROM LAND •• T: APPUCATION WEL BE CONSIDERED INCOMPLETE PEASE IF THE
7/PPP HAS ICY BEEN DEVELOPED. ••NOT= ••.;,•A COPY OF THE PLAN.)
W YES D NO
IQ,SUMMARIZE THE MEASURES OAENT .. FROM THE SWPPP THAW mu. SE USW TO CONTROL
POILUWITSINSTORMWATER• •GES• CONSTRI/CTIO.
11.SUMMARIZE BEST MANAGEMENT •RACTIICE5 FROM THE SWPPP THAT WILL REMAIN M PUCE ONCE CONSTRICTION
OPERATIONS HAVE SEEN-•
12 DESCRIBE THE RE OF THE FILL MAXESSAL
R 1 . ANY EXISTING OAWA CONCERNING SOIL ANI]IOR QUALM OP THE DI CHARDE
"'" car1.440 Oa MOO ---- Brt MRw
420 Attachment 1:34 Supp.#16,12/13
•
LAND DISTURBANCE CODE
FORM G—APPLICATION FOR STORM WATER PERMIT(CONT)
4 ESTIMATE OF RUNOFF COEFFICIENT OF SITE 0.
S.ESTIMATE OF INCREASE IN IMPERVIOUS AREA 4- 'X•
6.ESTIMATE OF RUNOFF COEFFICIENT UPON COMPLETION 0.
7.IS THE 1AWD DISTURBANCE WITHIN 1,000 FEET OF:
—WATER CLASSIFIED IN 10 CSR 20.7.031 WATER QUALITY STANDARDS AS A PUBLIC DRINKING - SUFFIX LAKE(Li),
OUTSTANDING NATIONAL OR STATE RESOURCE WATERS.OR STREAMS DESIGNATED FOR COLD. TER SPORT FISHERY;
—STREAMS.LAKES,OR RESERVOIRS CERTIFIED AS CRITICAL HABITAT FOR ENDANGERED CIES AS DETERMINED BY
MISSOURI DEP11RT1AF3(N T OF CONSERVATION AND U.S.FISH AND WILDLIFE SERVICE.CR
—ANY LAKE IN THE U.S.ENVIRONMENTAL PROTECTION AGENCYS CLEAN LAKES PROG• 7
O YES O NO
Ia.IS THE LAMD DL>`'TURBANCE WITHIN 100 FEET OF WATERS OA SIFIED AS , R RESERVOIRS(LJ OR PERMANENT FLOW
STREAMS(P),EXCEPTTHE MISSOURI AND MISSISSIPPI Ili WTIH. •STREAM MILES UPSTREAM OF BIOCRITEMA
REFERENCE LOCATIONS AS DEFINED IN 10 CSR 20. 77
O YES ONO
V
1 19.IS ANY PART OF THE AREA THAT IS BEING DISTURB DEFW='. AS A WETLAND(W)?
OYES ONO
IF YES, HAVE You RECEIVED A CIV ON 404 . FOR THIS SITE FROM THE UNITED STATES ARMY CORPS
ENGINEERS?(THE PEASA T CANNOT B 7, 41 P THE SITE IS UNDER A Idt PERMIT IF ONE IS REOUBIE)
❑YES ❑NO
20.DOES THE STORM WATER RUNOFF• .GE TO A SINKHOLE.LOSING STREAM,OR ANY OTHER TOPOGRAPESCAL FEATURE
THAT WOULD BE AO EGTCONDUITTO•,-CURD WATERT
O YES ❑NO
2T.I CERTIFY THAT I AM - WITH THE INFORMATION CONTAINED IN THE APPLICATION, THAT TO THE BEST OF MY
KIIOWLEDGE AND BELIEF- 'CH INFORMATION IS TRUE COMPLETE AND ACCURATE.ANO IF GRANTED THIS PERMIT,I AGREE
TO ABIDE BY THE MISSO • CLEAN WATER LAW ANC ALL RILES.REGULATIONS,ORDERS AND DECISIONS.SUBJECT TO ANY
LEGITIMATE APPEAL AV+LAB'S.TO AN APPLICANT UNDER THE MISSOURI CLEAN WATER UAW OF THE MISSOURI CLEAN WATER
cyluutssioti.
A.mum AMO CAw .1N. ,. 'a lsummue mum(AMA COOL Al )
C.9omerunE TO.OUR YOUBO
NOTE THIS Is TO Ile SUBMI THD ALONG WR1'1 FORM e(APKICATlON FOR A..o.& RAL PERMIT-1 AND'HC P"RMtTFEE Cl
ssa0.00.
420 Attachment 1:35 Supp.#16,12/13