HomeMy WebLinkAboutOrd #103-3rd Ser/Amending code re: wetland protection ,
ORDINANCE NO. 103 , THIRD SERIES
CITY OF ORONO
HENNEPIN COUNTY, MINNESOTA
AN ORDINANCE AMENDING SECTIONS
78-1601, 78-1605, 78-1606,78-1607,78-1608, 78-1610, 78-1611 AND 78-1612
OF THE ORONO CITY ZONING CODE
. REGARDING WETLAND PROTECTION
THE CITY COUNCIL OF THE CITY OF ORONO, MINNESOTA ORDAINS:
SECTION 1. Orono City Code Chapter 78, Section 78-1601, is amended by deleting and
adding the following language:
"Sec. 78-1601.- Purpose and intent.
(a) The purpose of this section is to recognize, preserve and protect the
environmental, aesthetic and hydrologic functions of the city's wetlands by
regulating the use of wetlands and their adjacent properties in conjunction with
the goals of the environmental protection plan within the community management
plan. These functions include, but are not limited to, sediment control, pollution
control, filtration, fish and wildlife habitat and aquifer recharge. The surface water
management plan will provide guidance for stormwater treatment requirements
and wetland restoration opportunities in order to protect the integrity of wetlands.
(b) The intent of this section is to protect wetlands to the maximum extent possible
while allowing a reasonable use of the property. This section adopts the
regulations and standards of the Wetland Conservation Act of 1991 (WCA), Laws
of Minnesota 1991, chapter 354, as amended, and the rules adopted pursuant to
the WCA. It also establishes a wetland overlay district. This overlay district
further regulates the underlying land use as allowed by other districts or the
WCA.
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SECTION 2. Orono City Code Chapter 78, Section 78-1605, is amended by deleting and
adding the following language:
"Sec. 78-1605.-Wetland buffer areas and setbacks.
(a) This subsection establishes �eq�t�e�e��s authoritv for wetland buffer areas
around protected wetlands. Buffer areas are necessary and beneficial to maintain
the health of wetlands. Buffer areas protect the edge of wetlands from erosion
while filtering sediment, chemicals and other nutrients from runoff that drains into
wetlands. Buffer areas can improve the biological diversity and health of a
wetland environment while reducing the adverse impacts of human activities.
(b) All wetlands within the City of Orono are within the Minnehaha Creek Watershed
Distric_t__�MCWD?, which has rules and regulations for the establishment and
maintenance of wetland buffers. In an effort to avoid overlap�g or conflicting
Page 2 of 13
re�ulations, the Citv defers jurisdiction for the establishment and maintenance of
wetland buffers to the Minnehaha Creek Watershed District. If application of
MCWD buffer regulations is in conflict with Citv regulations, the more restrictive
requirements shall applv.
(c) In order to provide for a minimum level of wetland protection where Minnehaha
Creek Watershed District buffer rules do not provide for adequate separation
between wetlands and buildin�s or other structures or surfaces, the Citv shall
require setbacks from the delineated ed e�of a protected wetland as follows:
Minimum distance setback from
delineated edse of wetland to anv
buildin�(nrinciAal or accessorv)or
other structure,hardcover.sepNc
svstems or wells•
Where no formal buffer exists and where 35 feet
MCWD does not require a buffer
Where a formal buffer exists or where 35 feet or established buffer width
MCWD buffer is recluired plus 10 feet, whichever is greater
Areas within the required setback area subject to fillin��g or excavation as
part of a construction project shall be reve�etated immediatelv upon completion
of such earthwork. Setbacks must be verified with wetland delineation
information. The determination of whether a Level 1 Delineation or Level 2
Delineation is required shall be at the discretion of the Planning Director. Leve12
delineation information shall be provided on a certified certificate of surve�
requirement for delineation shall be applied in cases where the wetland exists
within 150 feet of the proposed project.
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(sd) '�����e��t�r --��" '�� '����a �~ *'�� The Citv of Orono has established
wetland protection strategies e�s�e�in the Orono Surface Water Management
Plan (SWMP) (�ee���-z'LA(�z January 2011). A protection classification has
been assigned to each wetland in Orono based on the stormwater susceptibility
and functional assessment for each wetland. The City has also established
additional protection requirements for each classification. The four protection
classifications are described as follows:
Protection Susceptibility Description Additional Protection Requirements
Classification Rating B=Bounce=Change in water level due
to runoff event)
(P=Phosphorus)
"Preserve" Highly Highly susceptible to both quantity and B: Maintain bounce at or below existin�
Susceptible quality impacts from runoff;have the conditions
highest degree of protection P: Limit loadings�predevelopment
loadin�(0.14 Lbs./Ac/Yr)
"Manage 1" Moderately Moderately susceptible to quantity and B: Maintain bounce at or below existin�
Susceptible quality impacts;protection is less conditions plus 0.5 foot
stringent than Preserve,provides P: Limit loadin�predevelopment
protection to maintain their loadings times 2(0.28 Lbs/Ac/Yr)
characteristics
"Manage 2" Slightly Less stringent protection than Manage B: Maintain bounce at or below existin�
Susceptible 1 wetlands; maintenance of conditions plus 1.0 foot
characteristics is desirable P: Lixnit concentration to
predevelopment concentrations(200
PP��
"Manage 3" Least Wetlands are significantly degraded B:No quantitv requirement
Susceptible (e.g., cultivated or canary grass P: Limit concentration to 225 pnb
monotype) or lack of wetland
characteristics; not typically impacted
by runoff; no quantity and only limited
quality treatment of runoff is required
The protection classification for each wetland will be found on the "Wetland
Management Classification Map & List" which is hereby adopted by reference, a
copy of which shall be kept on file in the office of the city clerk and shall be
available for public review during all normal office hours. The Minnehaha Creek
Watershed District required buffer area widths are based on the four protection
classifications. �� �"�«��~�- �~'� t�c.�eq��e��ea����€e�--e�k
Page 5 of 13
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SECTION 3. Orono City Code Chapter 78, Section 78-1606, is amended by deleting and
adding the following language:
"Sec. 78-1606.- Permitted uses.
(a) Within the wetland overlay districts no land may be used except for one or more
of the following uses:
(1) Native wetland vegetation, provided that no change is made to the ground
elevation;
(2) Wildlife and nature preserves;
(3) Overhead utility lines and poles that are less than two feet in diameter;
(4) Docks which provide reasonable access to the lakeshore and do not exceed
eight feet in width;
(5) Public and private flood control structures, ponding and drainage facilities
and associated accessory appurtenances as approved by the city; or
(6) Environmental monitoring or control facilities, including those related to
water quality and wildlife regulation.
Page7of13
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(Ord. No. 28 3rd series, �1, 8-22-2005)
SECTION 4. Orono City Code Chapter 78, Section 78-1607, is amended by deleting and
adding the following language:
"Sec. 78-1607. - Conditional uses.
(a) Within the wetland overlay districts ��a *'�� --��+'�~a ���'�~ �~��� no land may be
used for the following except by conditional use permit and except in
conformance with the standards specified in section 78-1608 of this article:
(1) Private and public recreational uses, including golf courses, impervious
trails,picnic grounds and boat ramps;
(2) Public utilities, including necessary structures;
(3) Other non-structural facilities similar to those permitted by this section
which also meet the intent of this section, as determined by the city; or
(4) Public structures associated with recreational uses permitted by this
section or by section 78-1606 of this section that are designed in an
environmentally sensitive manner and will withstand periodic flooding,
except for structures designed or used for habitation or the storage of
equipment.
(5) Unpaved hiking, skiing and horseback riding trails which comply with
WCA standards.
Page8of13
(b) No conditional use permit will be granted unless its approval will not adversely
impact wetlands, t�e wetland buffer areas where thev exist or are required, and
surrounding properties, the intent of this article or the goals and policies of the
community management plan. If applicable, granting of a conditional use permit
will be conditioned upon approval of the request by all other appropriate
regulatory governmental agencies, including but not limited to the Minnehaha
Creek Watershed District (MCWD), the Lake Minnetonka Conservation District
(LMCD), or the Minnesota Department of Natural Resources."
(Ord. No. 28 3rd series, �1, 8-22-2005)
SECTION 5. Orono City Code Chapter 78, Section 78-1608, is amended by deleting and
adding the following language:
"Sec.78-1608.-Standards.
The following standards apply to all land within the wetland overlay districts, existin�
and MCWD-required wetland buffer areas, and to neighboring lands:
(1) Protection of wetlands .
a. Except as modified or regulated by the standards of this
subsection, all requirements of the underlying zoning district
apply.
b. No structures are allowed in the wetland overlay districts�
�uo -�t��n�-�a except those allowed as of right or by
� conditional use permit by sections 78-1606 or 78-1607 of this
article.
c. Activities including, but not limited to, building (other than a
boardwalk or dock), paving, mowing, vegetation removal, filling,
dumping, yard waste disposal or fertilizer application are
prohibited, e o..� �,�.,. ,.o,�.,;,, ,,,, ,.�;.,:,.;o� . �.a o..,,..;�oa
..,�.o.. .. ,oa �.�.��,o ,.;�.. ., ., �.,,�_,,, o„+ ,,,�. Invasive
non-native vegetation, such as European buckthorn and noxious
weeds, may be removed by obtaining a vegetation removal permit
from the city.
d. Before grading or construction near a wetland overlay district e�
�ne�-��, the owner or contractor must place erosion control
fencing on the upland side of the perimeter of the wetland overlay
district ,. ,o�,,...a �.,,�r r ., e.,� .�,,�;,.�.o.,o.. ; e o�,w:,,�;..e� or as
required by the city. This fencing must remain in place until all
development activities that may affect the wetland �„a *'�� --��+'�„a
�-e� have been finished and adequate vegetative cover has
been established at which time the fencing must be removed.
e. All structures must have a minimum basement floor elevation not
less than one foot above the 100-year flood elevation.
Page9of13
f. All hard-surface runoff must be treated in accordance with the
requirements of the city and the appropriate watershed district.
Treatment may include site retention, skimmers, weirs or
sedimentation ponds of appropriate scale. Structures and ponds
serving this purpose must be properly maintained and serviced by
the property owner.
g. Discharge into the wetlands must occur at a rate no greater than
allowed by the city engineer in accordance with the city's surface
water management plan and the appropriate MCWD requirements.
(2) Protection of wetland bu�'fer areas. Existing and MCWD-required wetland
buffers shall be maintained and protected per the requirements of existin�
covenants as well as MCWD regulations as administered bv MCWD.
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(3) Nonconformities.
a. Effect of wetland boundary expansion. An existing structure,
driveway or parking area meeting the required setback from a city-
designated wetland boundary or existing established buffer area is
considered a legal nonconforming development if a later wetland
delineation or implementation of a wetland buffer shows that the
wetland or its buffer is closer than the required setback.
b. Existing nonconformities. An existing structure, driveway or
parking area that does not meet the required setback from a city-
designated wetland boundary or buffer area, is considered a legal
nonconforming development.
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Pagel0of13
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SECTION 6. Orono City Code Chapter 78, Section 78-1610, is amended by deleting and
adding the following language:
"Sec. 78-1610. -Alteration of wetlands.
(a) No alteration of land within a wetland overlay district or an existin� established
wetland buffer is allowed without a wetlands alteration permit, subject to
recommendation by the planning commission and approval of the city council.
The planning commission must hold a public hearing after notifying the property
owners within 350 feet of the property on which the proposed alteration will
occur. Activities that constitute an alteration regulated by this section include
changes to the size, depth or contour of the wetlands or its existing established
buffer, dredging, or alterations of wetlands or buffer vegetation. Alterations do
not include wetland planting or the selective clearing or pruning of trees or
vegetation that are dead, diseased, noxious weeds or similar hazards. A wetland
alteration permit is not required when a wetland district is rezoned to another
zoning classification.
(b) Alteration of land within a wetland overlay district will only be allowed if water
storage is provided in an amount compensatory to that removed. Unless otherwise
approved by the city council, compensatory wetland area must be provided within
the same subwatershed district as the wetland being altered. In determining the
appropriateness of an alteration request, the city council will consider the size of
the total wetland district, the magnitude of the area proposed for alteration, the
aesthetic, hydrological and ecological effect, the type and function of wetlands
involved, and such other factors as may be appropriate in order to provide the
maximum feasible protection to the wetlands. Application for a wetlands
alteration permit must be accompanied by such information as required by the
city, including:
Page 11 of 13
(1) A copy of the wetland replacement plan application submitted to the
MCWD;
(2) A concept plan showing the ultimate use of the property;
(3) A grading plan, in hard copy format and a CAD or GIS format in
Hennepin County coordinates, with appropriate drainage calculations and
erosion controls prepared by a registered engineer;
(4) A landscaping or revegetation plan;
(5) Such other information as may be necessary or convenient to evaluate the
proposed permit; and
(6) A MnRAM assessment approved by the MCWD."
(Ord. No. 28 3rd series, � 1, 8-22-2005)
SECTION 7. Orono City Code Chapter 78, Section 78-1611, is amended by deleting and
adding the following language:
"Sec. 78-1611. - Public control of wetlands.
(a) The city council may require that the owner of any property affected by this
article must establish wetland �ra '�•���-- �--�� easements or restrictive covenants
to be recorded within the property's chain of title. These easements or covenants
must describe the boundaries of the wetland �a����e���
; and prohibit
any building, paving, mowing ,
cutting, filling, dumping, yard waste disposal or fertilizer application within the
wetland �„a *'��'��•� �-���. The owner or developer must record these easements
or covenants with the final plat, with deeds from a lot division or, if no
subdivision is involved, before the city issues a grading permit or building permit
for an affected property. The applicant must submit evidence that the easement or
covenant has been submitted to the county for recording.
(b) If the city council does not require an easement or covenant, the city may record a
notice of the wetland �� '����-- � requirements against the property. The
property owner must still comply with the requirements of this section."
(Ord. No. 28 3rd series, �1, 8-22-2005)
SECTION 8. Orono City Code Chapter 78, Section 78-1612, is amended by deleting and
adding the following language:
`�'iee:�8 ,�,-�—T�e�-b�€€e�-m��
�xn,o� .. , ao�,o�„r,�.o..� „ ..oao.,o,�..,�..o„+ ,. „��� ; ,,,�;�,,.,;�., ,- �;ao„�;.,i „
t�,. �t,o ao ei,. �� ri„ ,.v .,� �t,o r�.,,,a �.,, „a., n���.e o�i,..,a
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Page 12 of 13
,
r�f�S6iis'l�� ^"cv�i i^v��I.�ET�".r-uno-d 9Ec'i�t9i�-6�t
iirs�c"�i.t�6}�
SECTION 9. Effective date. This ordinance shall be effective upon adoption and publication
according to law.
ADOPTED this 28thday of May , 2013 by the Orono City Council.
by a vote of 5 ayes and 0 nayes.
CITY OF ORONO
�
Lili Tod McMi lan, Mayor
ATTEST:
�-���-�--E��c�c��
Rachel Dodge, City Clerk
Published in The Pioneer and The Laker newspapers the week of June 15, 2013.
Page 13 of 13