HomeMy WebLinkAbout93-07 Storm Water Management
CITY OF PRIOR LAKE
ORDINANCE NO. 93-07
AN ORDINANCE AMENDING SECTIONS 4-1-1 AND 9-6-4 OF THE PRIOR LAKE
CITY CODE.
The Council of the City of Prior Lake does hereby ordain:
section 4-1-1 of Title 4, Chapter 1 of the Prior Lake city Code
is hereby amended by adding a new paragraph (E) to read as
follows:
(E) Any person applying for a building permit which may
require removal or disturbance from the natural
surface of the earth or sod, soil, sand, gravel,
stone, or other matter, shall submit an erosion
control plan as outlined in the 1989 edition of
Protectinq Water Quality in Urban Areas, published
by the Minnesota Pollutlon Control Agency, or an
equivalent set of standards. No permit shall be
issued until the erosion control plan is approved
by the city Engineer.
Section 9-6-4 (A) of Title 9, Chapter 6 of Prior Lake City Code
is hereby amended by amending paragraph (9) to read as follows:
4-1-1:
9-6-4: (A) 9. An erosion control plan, which shall contain the
following information:
a.
Existing site Map showing the site
immediately adjacent areas, including:
(1) A delineation of all streams, rivers,
public waters and wetlands located on and
immediately adjacent to the site,
including depth of water, a statement of
general water quality and any
classification given to the water body or
wetland by the Minnesota Department of
Natural Resources, the Minnesota
Pollution Control Agency, and/or the
United States Army Corps of Engineers.
and
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(2) Location and dimensions of existing storm
water drainage systems and natural
drainage patterns on and immediately
adjacent to the site delineating in which
direction and at what rate storm water is
conveyed from the site, identifying the
receiving stream, river, public water, or
wetland and setting forth those areas of
the unaltered site where storm water
collects.
(3) A description of the soils of the site,
including a map indicating soil types of
areas to be disturbed as well as a soil
report containing information on the
suitability of the soils for the type of
development proposed and for the type of
sewage disposal proposed and describing
any remedial steps to be taken by the
developer to render the soils suitable.
(4) Vegetative cover and clear delineations
of any vegetation proposed for removal.
(5) 100 year floodplains, flood fringes and
floodways.
b. A site construction plan including:
Locations and dimensions of all
land disturbing activities
phasing of those activities.
(2) Locations and dimensions of all temporary
soil and dirt stockpiles.
proposed
and any
(1)
(3) Locations and dimensions of all
construction site erosion control
measures necessary to meet the standards
as outlined in Protectinq Water Quality
in Urban Areas, published by the
Minnesota Pollution Control Agency, or an
equivalent set of standards.
(4) Schedule of anticipated starting and
completion date for each installation of
erosion control measures.
(5)
provisions for maintenance
construction site erosion
measures during construction.
of the
control
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POLICIES FOR PRIVATE DEVELOPMENT PROJECTS
POLICY STATEMENT
1. EROSION CONTROL PLAN
It is the policy of the City of Prior Lake that the
construction of private developments shall have a site
construction plan outlining the erosion control measures
based on the 1989 Edition, Protectinq Water Quality in Urban
Areas as published by the Minnesota Pollution Control Agency
or an equivalent set of standards and as written in the city
Code.
The requirements included in the proposed Storm
Management Ordinances are as follows:
Water
1. Locations and dimensions of all proposed land disturbing
activities and any phasing of those activities.
2. Locations and discussions of all temporary soil and dirt
stockpiles.
3. Locations and discussions of all construction site
erosion control measures necessary to meet the standards
as outlined in Protectinq Water Quality in Urban Areas,
published by the Minnesota Pollution Control Agency or
an equivalent set of standards.
4. Schedule of anticipated starting and completion date of
each land disturbing activity, including the
installation of construction site erosion control
measures.
5. Provisions for maintenance of the construction site
erosion control measures during construction.
In addition to the above site construction plan
requirements, the City will require silt fence be placed
behind the streets concrete curb and gutter within 7
calendar days after the concrete curb and gutter is
placed. silt fence placement shall be located as
determined by the city Engineer within the street
boulevard area.
With an approved building permit, an opening through the
silt fence will be allowed for each lot for entry and
exit access. At the construction access opening to each
individual site, a temporary rock construction entrance
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shall be provided for vehicular access as per the
standard detail plate as contained in protecting Water
Quality in Urban Areas, published by the Mlnnesota
Pollutlon Control Agency.
These erosion control measures shall be required for all
new construction, except in those cases where the
weather makes the installation of such measures
unpracticable as determined by the City Engineer or
Building Official.
Building permits will not be issued until lot grading,
topsoil placement, erosion control, and re~ired turf
placement are completed. The building permlts can be
completed in Blocks rather than waiting until the entire
subdivision grading is complete. The existing policy of
issuing one Building Permit per parcel remains in effect.
Certificate of Occupancy permits have been issued in the past
after the bituminous base course has been placed for the
streets in the development. This policy will be continued
for future developments.
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c. A plan of final site conditions on the same
scale as the existing site map showing the
site changes including:
(1) Finished grading shown at contours at the
same interval as provided above or as
required to clearly indicate the
relationship of proposed changes to
existing topography and remaining
features.
(2) A landscape plan, drawn to an appropriate
scale, including dimensions and distances
and the location, type, size and
description of all proposed landscape
materials which will be added to the
site.
(3) A drainage plan of the developed site
delineating in which direction and at
what rate storm water will be conveyed
from the site and setting forth the areas
of the site where storm water will be
allowed to collect.
(4) The proposed size, alignment, profiles
and intended use of any structures to be
erected on the site.
Any other information pertinent
particular project which in the
of the applicant is necessary
review of the project.
This ordinance shall become effective from and after its passage
and publication.
(S)
to the
opinion
for the
Passed by the City Council
15'th day of M::lrC'h
of the City of Prior Lake this
, 1993.
Clty
~~~~~
Actlng Mayor
Published in the Prior Lake American on the
March , 1993
22nd
day of
Drafted By:
Joel Rutherford
Water Resources Coordinator
City of Prior Lake
4629 Dakota street S.E.
Prior Lake, MN 55372
(5) Location and dimensions of existing storm water
drainage systems and natural drainage patterns on
and immediately adjacent to the site delineating in
which direction and at what rate storm water is
conveyed from the site, identifying the receiving
stream, river, public water, or wetland and setting
forth those areas of the unaltered site where storm
water collects.
(6) A description of the soils of the site, including a
map indicating soil types of areas to be disturbed
as well as a soil report containing information on
the suitability of the soils for the type of
development proposed and for the type of sewage
disposal proposed and describing any remedial steps
to be taken by the developer to render the soils
suitable.
(7) Vegetative cover and clear delineations of any
vegetation proposed for removal.
(8) 100 year floodplains, flood fringes and floodways.
(b) A site construction plan including:
(1)
Locations and dimensions
disturbing activities and
activities.
of
any
all proposed land
phasing of those
(2) Locations and dimensions of all temporary soil and
dirt stockpiles.
(3) Locations and dimensions of all construction site
erosion control measures necessary to meet the
standards as outlined in the 1989 edition of
Protectinq Water Quality in Urban Areas, published
by the Minnesota Pollutlon Control Agency, or an
equivalent set of standards.
(4) Schedule of anticipated starting and completion
date of each land disturbing activitv, including
the installation of construction slte erosion
control measures.
(5) provisions for maintenance of the construction site
erosion control measures during construction.
(c) A plan of final site conditions on the same scale as the
existing site map showing the site changes including:
(1)
Finished grading shown
interval as provided
clearly indicate the
changes to existing
features.
at contours at the same
above or as required to
relationship of pro~osed
topography and remalning
CITY OF PRIOR LAKE
ORDINANCE NO. 93-05
AN ORDINANCE AMENDING SECTIONS 6-2-1, 6-4-2, 6-4-3, 6-6-6, 6-6-7,
AND 6-7-10 OF THE PRIOR LAKE CITY CODE AND PRIOR LAKE ORDINANCE
87-10.
The Council of the city of Prior Lake does hereby ordain:
section 6-2-1 of Title 6, Chapter 2 of the Prior Lake city Code
and Section 6-2-1 of Prior Lake Ordinance 87-10 are hereby
amended by adding a definition of "Wetlands" to read as follows:
6-2-1: WETLANDS:
Lands transitional between terrestrial
aquatic systems where the water table
usually at or near the surface or the land
covered by shallow water. For purposes
this definition, wetlands must have
following three attributes:
and
is
is
of
the
Have a predominance of hydric soils.
Are inundated or saturated by surface or
ground water at a frequency and duration
sufficient to support a prevalence of
hydrophytic vegetation typically adapted
for life in saturated soil conditions.
Under normal circumstances support a
prevalence of such vegetation.
section 6-4-2 of Title 6, Chapter 4 of the Prior Lake City Code
and section 6-4-2 of Prior Lake Ordinance 87-10 are hereby
amended by amending paragraph (J) to read as follows:
(a)
(b)
(c)
6-4-2: (J)
Physical features which shall include:
1. A delineation of all streams, rivers, public
waters and wetlands located on and immediately
adjacent to the site, including depth of
water, a statement of general water quality,
and any classification given to the water body
or wetland by the Minnesota Department of
Natural Resources, the Minnesota Pollution
Control Agency, and/or the United states Army
Corps of Engineers.
2. Location and dimensions of existing storm
water drainage systems and natural drainage
patterns on and immediately adjacent to the
site delineating in which direction and at
what rate storm water is conveyed from the
site, identifying the receiving stream, river,
public water, or wetland and setting forth
those areas of the unaltered site where storm
water collects.
3. A description of the soils of the site,
including a map indicating soil types of areas
to be disturbed as well as a soil report
containing information on the suitability of
the soils for the type of development proposed
and for the type of sewage disposal proposed
and describing any remedial steps to be taken
by the developer, to render the soils
suitable.
4. Vegetative cover and clear delineations of any
vegetation proposed for removal.
100 year floodplains, flood fringes
floodways.
Section 6-4-3 of Title 6, Chapter 4 of the Prior Lake City Code
and Section 6-4-3 of Prior Lake Ordinance 87-10 are hereby
amended by adding new paragraphs (M) and (N) to read as follows:
5.
and
6-4-3: (M)
A site construction plan including:
1. Locations and dimensions of all proposed land
disturbing activities and any phasing of those
activities.
2. Locations and dimensions of all temporary soil
and dirt stockpiles.
3. Locations and dimensions of all construction
site erosion control measures necessary to
meet the standards as outlined in Protectinq
Water Quality in Urban Areas, published by the
Minnesota Pollution Control Agency, or an
equivalent set of standards.
4. Schedule of anticipated starting and
completion date of each land disturbing
activity, including the installation of
construction site erosion control measures.
5. provisions for maintenance of the construction
site erosion control measures during
construction.
(N) A plan of final site conditions on the same scale
as the physical features map showing the site
changes inClUding:
1. Finished grading shown at contours at the same
interval as provided for the existing
contours, or as required to clearly indicate
the relationship of proposed changes to
existing topography and remaining features.
2. A drainage plan of the developed site
delineating in which direction and at what
rate storm water will be conveyed from the
site and setting forth the areas of the site
where storm water will be allowed to collect.
3. The proposed size, alignment, profiles and
intended use of any structures to be erected
on the site.
Section 6-6-6 of Title 6, Chapter 6 of the Prior Lake City Code
and Section 6-6-6 of Prior Lake Ordinance 87-10 are hereby
amended by amending paragraphs (A) and (B) to read as follows:
6-6-6: (A)
6-6-6: (B)
wild Life Habitat and Water Recharge Areas: Marsh
areas which are part of the proposed development
shall be analyzed for purposes of preservation as
potential wild life habitat for birds and animals
as well as to continue providing water purification
and recharge areas for the lake of Prior Lake. If
the city council determines that marsh areas serve
the public in one or more of these functions then
they may require preservation in whole or in part.
Any alterations or disturbance shall com~ly with
the requirements of the Wetland Conservatlon Act,
and other legislation that may limit disturbance to
wild life habitat and water recharge areas.
Filling or Draining: Wetlands must not be drained
or filled, wholly or partially, unless replaced by
restoring or creating wetland areas of at least
equal public value, as permitted by the Wetland
Conservation Act.
Section 6-6-7 of Title 6, Chapter 6 of the Prior Lake City Code
and Section 6-6-7 of Prior Lake Ordinance 87-10 are hereby
amended to read as follows:
6-6-7:
STORM WATER MANAGEMENT criteria for permanent
facilities:
(A) The subdivider shall use the standards and
guidelines presented in the 1989 edition of
Protectinq Water Quality in Urban Areas,
published by the Minnesota Pollution Control
Agency, or an equivalent set of standards.
The subdivider shall install or construct, on
or for the proposed land disturbing or
development activity, all storm water
management facilities necessary to manage
increased runoff so that the two-year,
ten-year, and 100-year storm peak discharge
rates existin~ before the proposed development
shall not be lncreased and accelerated channel
erosion will not occur as a result of the
pro~osed land disturbing or development
actlvity. The subdivider may also make an
in-kind or monetary contribution to the
development and maintenance of community storm
water management facilities designed to serve
multi~le land disturbing and development
activlties undertaken by one or more persons,
including the subdivider.
section 6-7-10 of Title 6, Chapter 7 of the Prior Lake city Code
and section 6-7-10 of Prior Lake Ordinance 87-10 are hereby
amended to read as follows:
(B)
6-7-10:
(A) A drainage system as approved by the city Engineer
shall be provided.
(B) storm water detention facilities constructed in the
City of Prior Lake shall be designed according to
the standards reflected in the 1989 edition of the
MPCA publication Protectinq Water Quality in Urban
Areas, and the design criteria from the National
Urban Runoff Program.
This ordinance shall become effective from and after its passage
and publication.
of the City of Prior Lake this
, 1993.
Passed by the City Council
1 5rh day of March
Clty
M::lrch
~~-~~
Actlng Mayor --
Lake American on the 22nd
1993.
day of
Drafted By:
Joel Rutherford
Water Resources Coordinator
City of Prior Lake
4629 Dakota street S.E.
Prior Lake, MN 55372