HomeMy WebLinkAbout10/26/22 EB Packet
CITY OF LINO LAKES ENVIRONMENTAL BOARD MEETING Wednesday, October 26th, 2022
6:30 p.m.
Council Chambers
AGENDA 1. CALL TO ORDER AND ROLL CALL
2. PLEDGE OF ALLEGIANCE
3. APPROVAL OF AGENDA
4. APPROVAL OF MINUTES: NONE
5. OPEN MIKE
6. ACTION ITEMS
A. City Code Chapter 1011. Stormwater, Erosion and Sediment Control Update, Michael Grochala B. Draft Chloride Reduction Ordinance, Michael Grochala
7. ADJOURN
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ENVIRONMENTAL BOARD
AGENDA ITEM 6A STAFF ORIGINATOR: Michael Grochala, Community Development Director MEETING DATE: October 26, 2022
REQUEST: Consider Amendment to City Code Section 1011, Storm Water Management, Erosion and Sediment Control APPLICANT City of Lino Lakes
BACKGROUND:
City Code section 1011 regulates development activities that disturbs land and generates the need for storm water management. The City is required to adopt ordinance consistent with the requirements of the State’s General Permit to operate a municipal separate storm sewer system (MS4). The City was issued a new permit in October of 2021. Additionally, the City is required to be in conformance with the rules and requirements of the local water management
organizations (WMO’s) – the Rice Creek Watershed District (RCWD) and Vadnais Lakes Water Management Organization. The proposed ordinance amendment is to bring our code requirements into conformance with the permit and WMO’S standards and simplify administration of the code
The RCWD covers the majority of the city with VLAWMO jurisdiction limited to a few hundred acres in the southeast portion of the City. For purpose of applying requirements uniformly the ordinance adopts the stormwater management requirements of the RCWD.
New language is shown as underlined text and deleted text is shown with a strikethrough. ANALYSIS Sections 1011.001 through 1011.005:
These sections were modified to remove superfluous language and recognize the adoption of certain code amendments by reference to RCWD or VLAWMO rules Section 1011.006 Definitions:
The definition section was amended to update definitions for consistency with WMP’s and the MS4 permit, and delete unnecessary terminology.
Section 1011.007 through 1011.009:
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These sections were modified to remove superfluous language and correct references. Section 1011.010. Erosion and Sediment Control Requirements
These sections were modified to remove superfluous language and conform to similar requirements of RCWD. Section 1011.011 Stormwater Management Requirements.
Permit applicability was amended to generally match RCWD permit requirements and meets the requirements for the MS4 permit as well. The Comprehensive Stormwater Management Plan (CSMP’s) section was added, as provided for
by RCWD. The City has two CSMP’s currently in effect – one for Legacy at Woods Edge (City
Hall and surrounding complex) and the NE Drainage Area (from Peltier Lake to City of Hugo). Stormwater Management in those areas are governed by these requirements. Subparts 5 through 9 adopts the RCWD requirements by reference as amended. This keeps our
ordinance consistent with the RCWD. The RCWD Rules cover the same items shown as deleted
in our ordinance. Subpart 11 was added to establish wetland buffers consistent with the RCWD and VLAWMO requirements.
Sections 1011.012 through 016 No changes are proposed other than minor clerical references. ENVIRONMENTAL DIRECTION: Recommend approval of proposed Stormwater, Erosion and Sediment Control code amendments. ATTACHMENTS: 1. Draft Storm Water Erosion and Sediment Control Ordinance
1st Reading: Publication:
2nd Reading: Effective:
DRAFT
CITY OF LINO LAKES
ORDINANCE NO. __ -22
AN ORDINANCE AMENDING SECTION 1011 RELATING TO THE REGULATION
OF STROMWATER, EROSION AND SEDIMENT CONTROL
The City Council of Lino Lakes ordains:
Section 1. The Lino Lakes Code of Ordinance, Chapter 1001 Stormwater, Erosion and Sediment
Control is hereby amended as follows:
CHAPTER 1011: STORMWATER, EROSION AND SEDIMENT CONTROL
Section
1011.001 Title
1011.002 PurposeFindings
1011.003 Jurisdiction
1011.004 Statutory authority
1011.005 FindingsAdoption by reference
1011.006 Definitions
1011.007 Applicability
1011.008 Exemptions
1011.009 Technical referenceReserved
1011.010 Grading, erosion and sediment control requirements
1011.011 Stormwater management requirements
1011.012 Inspections and maintenance
1011.013 Plan review procedure
1011.014 Financial securities
1011.015 Enforcement
1011.016 Abrogation and greater restrictions
§ 1011.001 TITLE.
This chapter shall be known as the Lino Lakes Stormwater, Erosion and Sediment
Control Chapter and will be referred to herein as this chapter.
(Ord. 09-15, passed 10-26-2015)
§ 1011.002 PURPOSE.
The general purpose of this chapter is to set forth regulatory requirements for land
development and land disturbing activities aimed at minimizing threats to public health,
safety, public and private property, and natural resources within the city from
construction site erosion and post-construction stormwater runoff. Specific purposes are
to establish performance standards that will:
(1) Protect life and property from dangers associated with flooding;
(2) Protect public and private property and the natural resources from damage
resulting from runoff and construction site erosion;
(3) Ensure land development that minimizes the generation of stormwater runoff
volumes and peak rates and maximizes pervious areas for stormwater treatment;
(4) Promote regional stormwater management by subwatershed;
(5) Provide a single, consistent set of performance standards that apply to all
developments;
(6) Protect water quality from nutrients, heavy metals, bacteria, pathogens,
debris, thermal stress, and other urban pollutants;
(7) Promote infiltration and groundwater recharge;
(8) Protect functional values of all types of natural water bodies (e.g., rivers,
streams, wetlands, lakes, seasonal ponds); and
(9) Sustain or enhance biodiversity (native plant and animal habitat) and support
riparian ecosystems.
(Ord. 09-15, passed 10-26-2015)
The city finds that uncontrolled stormwater runoff and construction site erosion from
land development and land disturbing activity can have significant adverse impacts
upon local and regional water resources diminishing the quality of public health, safety,
public and private property, and natural resources of the city. Specifically, uncontrolled
construction site erosion and stormwater runoff can:
(1) Threaten public health, safety, property, and general welfare by increasing
runoff volumes, peak flood flows, and overburdening storm sewers, drainage ways, and
other storm drainage systems;
(2) Diminish the capacity of lakes and streams to support fish, aquatic life,
recreational and water supply uses by increasing pollutant loadings of total sediment,
suspended solids, nutrients, heavy metals, bacteria, pathogens, and other urban
pollutants;
(3) Degrade physical stream habitat by increasing stream bank erosion,
increasing stream bed scour, diminishing groundwater recharge, diminishing stream
base flows, and increasing stream temperatures;
(4) Undermine floodplain management efforts by increasing the incidence and
levels of flooding;
(5) Alter wetland communities by changing wetland hydrology and increasing
pollutant loading; and
(6) Generate airborne particulate concentrations that are health threatening or
may cause other damage to property or the environment.
(Ord. 09-15, passed 10-26-2015)
§ 1011.003 JURISDICTION.
The provisions of this chapter shall apply to all lands within the incorporated
boundaries of Lino Lakes.
(Ord. 09-15, passed 10-26-2015)
§ 1011.004 STATUTORY AUTHORITY.
This chapter is adopted pursuant to the authorization and policies contained in M.S.
Chs. 103B, 103F, and 462 and Minn. Rules Chs. 7050, 7090, and 8410. This chapter is
intended to meet the current construction site erosion and sediment control and post-
construction stormwater management regulatory requirements for construction activity
and small construction activity as defined in the standards of the NPDES construction
general permit, as amended.
(Ord. 09-15, passed 10-26-2015)
§ 1011.005 FINDINGSADOPTION BY REFERENCE. .
The city finds that uncontrolled stormwater runoff and construction site erosion from
land development and land disturbing activity can have significant adverse impacts
upon local and regional water resources diminishing the quality of public health, safety,
public and private property, and natural resources of the city. Specifically, uncontrolled
construction site erosion and stormwater runoff can:
(1) Threaten public health, safety, property, and general welfare by increasing runoff
volumes, peak flood flows, and overburdening storm sewers, drainage ways, and other
storm drainage systems;
(2) Diminish the capacity of lakes and streams to support fish, aquatic life,
recreational and water supply uses by increasing pollutant loadings of total sediment,
suspended solids, nutrients, heavy metals, bacteria, pathogens, and other urban
pollutants;
(3) Degrade physical stream habitat by increasing stream bank erosion, increasing
stream bed scour, diminishing groundwater recharge, diminishing stream base flows,
and increasing stream temperatures;
(4) Undermine floodplain management efforts by increasing the incidence and levels
of flooding;
(5) Alter wetland communities by changing wetland hydrology and increasing
pollutant loading; and
(6) Generate airborne particulate concentrations that are health threatening or may
cause other damage to property or the environment.
(Ord. 09-15, passed 10-26-2015)
Certain rules of the Rice Creek Watershed District (the “Rules”) and Standards of
the Vadnais Lake Area Water Management Organization (the “Standards”) and any
amendments or revisions thereto referenced herein are adopted as ordinances of the
City. Where the Rules refer to the “District” they shall be deemed as referring to the
City. Where the Standards refer to the “VLAWMO” they shall be deemed as referring to
the City. Where conflicts exist between this Ordinance and the Rules or Standards, the
greater requirement shall apply.
§ 1011.006 DEFINITIONS.
Unless specifically defined below, words or phrases used in this chapter shall be
interpreted so as to give them the same meaning as they have in common usage and to
give this chapter its most reasonable application. For the purpose of this chapter, the
words MUST and SHALL are mandatory and not permissive. All distances, unless
otherwise specified, shall be measured horizontally. As used in this chapter, the
following words and terms shall have the meanings ascribed to them in this section.
100-YEAR FLOOD ELEVATION. The elevation of water resulting from the Critical
Duration Flood Event. See definition of Critical Duration Flood event.
BEST MANAGEMENT PRACTICES (BMP's). Measures taken to minimize negative
effects on water resources and systems as documented in the Minnesota Construction
Site Erosion and Sediment Control Planning Handbook (MBWSR, 1988), Protecting
Water Quality in Urban Areas (MPCA, 2000) and the Minnesota Stormwater Manual
(MPCA, 2014) as amended.
BETTER SITE DESIGN (BSD). An approach to managing runoff that seeks to attain
post development hydrology which mimics the undeveloped condition in terms of
volume, rate and timing of runoff. The goals of BETTER SITE DESIGN include reducing
the amount of impervious cover, increasing the amount of natural lands set aside for
conservation, using pervious areas for more effective stormwater treatment, innovative
grading and drainage techniques and through the review of every aspect of the project
site planning process. BETTER SITE DESIGN involves techniques applied early in the
design process to reduce impervious cover, conserve natural areas and use pervious
areas to more effectively treat stormwater runoff and promote a treatment train
approach to runoff management.
BIOFILTRATION. A stormwater quality and quantity BMP that utilizes vegetation
and soil to filter and absorb pollutants including nutrients, hydrocarbons and metals and
remove water volume through evapotranspiration. aA bioretention practice in which an
underdrain is used. Typically, most of the water entering the biofiltration practice enters
the underdrain and is returned to the stormwater system, but some water infiltrates
(unless the BMP has an impermeable liner) or evapotranspires. The underdrain may be
at or elevated above the bottom of the practice (i.e. at the media-soil interface.
BIORETENTION. A soil and plant-based stormwater management best
management practice (BMP used to filter runoff.
BRIDGE. A road, path, railroad or utility crossing over a waterbody, wetland, ditch,
ravine, road, railroad or other obstacle.
BRIDGE SPAN. The clear span between the inside surfaces of a bridge's terminal
supports.
CHANNEL. A perceptible natural or artificial depression, with a defined bed and
banks that confine and conduct water flowing either continuously or periodically.
CONSTRUCTION ACTIVITY. Activities including clearing, grading, and excavating,
that result in land disturbance of equal to or greater than one acre, including the
disturbance of less than one acre of total land area that is part of a larger common plan
of development or sale if the larger common plan will ultimately disturb equal to or
greater than one acre. This includes a disturbance to the land that results in a change in
the topography, existing soil cover, both vegetative and nonvegetative, or the existing
soil topography that may result in accelerated stormwater runoff that may lead to soil
erosion and movement of sediment. Construction activity does not include a disturbance
to the land of less than five acres for the purpose of routine maintenance performed to
maintain the original line and grade, hydraulic capacity, and original purpose of the
facility. Routine maintenance does not include activities such as repairs, replacement
and other types of non-routine maintenance. Pavement rehabilitation that does not
disturb the underlying soils (e.g., mill and overlay projects) is not construction activity.
. Includes construction activity as defined in 40 C.F.R. pt. 122.26(b)(14)(x) and small
construction activity as defined in 40 C.F.R. pt. 122.26(b)(15). This includes a
disturbance to the land that results in a change in the topography, existing soil cover
(both vegetative and non-vegetative), or the existing soil topography that may result in
accelerated stormwater runoff, leading to soil erosion and movement of sediment into
surface waters or drainage systems. Examples of CONSTRUCTION ACTIVITY may
include clearing, grading, filling, and excavating. CONSTRUCTION ACTIVITY includes
the disturbance of less than one acre of total land area that is a part of a larger common
plan of development or sale if the larger common plan will ultimately disturb one acre or
more.
CONVEYANCE SYSTEM. Open channel, pipe or tile that is not a Public Drainage
System. A portion of a conveyance system is defined as “regional” if it carries flows from
a drainage area of greater than 200 acres.
CRITICAL DURATION FLOOD EVENT. The 100-year precipitation or snow melt
event with a duration resulting in the maximum 100-year return period water surface
elevation. The CRITICAL DURATION FLOOD EVENT is generally either the 100-year,
24 hour rainfall event as found in NOAA Atlas 14 or the ten-day snow melt event
assumed to be 7.2 inches of runoff occurring on frozen ground (CN=100); however,
other durations (e.g., 6-hour) may result in the maximum 100-year return period water
surface elevation.
DETENTION BASIN. Any natural or man-made depression that stores stormwater
runoff temporarily.
DEVELOPMENT. Any land-disturbing activity resulting in creation or reconstruction
of impervious surface including, but not limited to, municipal road construction. Normal
farming practices part of an ongoing farming operation shall not be considered a
DEVELOPMENT.
DRAINAGE SYSTEM. A system of open channel, pipe or tile, to drain property,
including laterals, improvements, and improvements of outlets, which may or may not
be a public system under the jurisdiction of a watershed district under M.S. Chs. 103B,
103D, or 103E.
EMERGENCY OVERFLOW (EOF). A primary overflow to pass flows above the
design capacity around the principal outlet safely downstream without causing flooding.
EROSION AND SEDIMENT CONTROL PLAN. A plan of BMPs or equivalent
measures designed to control runoff and erosion and to retain or control sediment on
land during the period of land disturbance in accordance with the standards set forth in
this chapter.
EROSION PREVENTION. Measures employed to prevent erosion including, but not
limited to, soil stabilization practices, limited grading, mulch, temporary or permanent
cover, and construction phasing.
EXCAVATION. The displacement or removal of soil, sediment or other material.
FILTRATION. A stormwater quality BMP that uses either natural media such as soil
or vegetation or manufactured media to trap pollutants such as nutrients and particles in
surface water.
FINAL STABILIZATION. All soil disturbing activities at the site have been completed
and all soils have to be stabilized by a uniform perennial vegetative cover with a density
of 70% over the entire pervious surface area, or other equivalent means necessary to
prevent soil failure under erosive conditions.
FLOODPLAIN. The beds proper and areas adjoining a waterbody wetland, lake or
watercourse that are inundatedwhich have been or hereafter may be covered by the
during the 100-yearregional flood.
FLOODWAY FRINGE. That portion of the floodplain outside of the floodway. Flood
fringe is synonymous with the term FLOODWAY FRINGE used in the Flood Insurance
study for Anoka County,The area between the floodway and the boundary of the 100-
year flood.
FLOODWAY. The channel of a watercourse, the bed of water basins and those
portions of adjoining floodplains that must be kept free of encroachment to
accommodate the 100-year flood. The bed of a wetland or lake and the channel of a
watercourse and those portions of the adjoining floodplain which are reasonably
required to carry or store the regional flood discharge.
FLOODWAY FRINGE. The area between the floodway and the boundary of the
100-year flood. The portion of the one-percent annual chance floodplain located outside of
the floodway. This district also includes any additional area encompassed by the horizontal
extension of the Regulatory Flood Protection Elevation.
FREEBOARD. Vertical distance between the 100-year flood elevation or emergency
overflow elevation of a water basin or watercourse and the elevation of the regulatory
elevation of a structure.
IMPERVIOUS SURFACE. A compacted surface or a surface covered with material
(i.e., gravel, asphalt, concrete, Class 5, etc.) that increases the depth of runoff
compared to natural soils and land cover. Including but not limited to roads, driveways,
parking areas, sidewalks and trails, patios, tennis courts, basketball courts, swimming
pools, building roofs, covered decks, and other structures.
INFILTRATION. Water entering the ground through the soil.
LAND-DISTURBING ACTIVITY. Any disturbance to the ground surface that,
through the action of wind or water, may result in soil erosion or the movement of
sediment into waters, wetlands or storm sewers or onto adjacent property. LAND-
DISTURBING ACTIVITY includes but is not limited to the demolition of a structure or
surface, soil stripping, clearing, grubbing, grading, excavating, filling and the storage of
soil or earth materials. The term does not include normal farming practices as part of an
ongoing farming operation.
LANDLOCKED BASIN. A water basin lacking an outlet at an elevation at or below
the water level produced by the critical duration flood event, generally the ten-day
snowmelt event.
LOW ENTRY ELEVATION. The elevation of the lowest opening in a structure.
LOW FLOOR ELEVATION. The elevation of the lowest floor of a habitable or
uninhabitable structure, which is often the elevation of the basement floor or walk-out
level.
MILL, RECLAMATION AND OVERLAY. Removal of the top layer(s) of an
impervious surface (e.g. roadway, parking lot, sport court) by mechanical means,
followed by the placement of a new layer of impervious surface, without exposure of the
underlying native soil.
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)
STORMWATER DISCHARGE PERMIT. A permit issued by the Minnesota Pollution
Control Agency that authorizes the discharge of pollutants to the waters of the state.
NATIONWIDE URBAN RUNOFF PROGRAM (NURP). Urban Runoff Program
developed by the Environmental Protection Agency to study stormwater runoff from
urban development.
ORDINARY HIGH WATER LEVEL (OHW). The highest water level elevation that
has been maintained for a sufficiently long period of time to leave evidence upon the
landscape. The OHW is commonly that point where the natural vegetation changes
from predominantly aquatic to predominantly terrestrial. If an OHW has been
established for a waterbody by the Minnesota Department of Natural Resources, it will
constitute the OHW under this definition.
OWNER. The person or party possessing the title of the land on which the
construction activities will occur; or if the construction activity is for a lease, easement,
or mineral rights license holder, the party or individual identified as the lease, easement,
or mineral rights license holder; or the contracting government agency responsible for
the construction activity.
POLLUTANT. A substance that pollutes something, especially water or the
atmosphere.
PUBLIC LINEAR PROJECT. A project involving a roadway, sidewalk, trail or utility
not part of an industrial, commercial, institutional or residential development.
RECONSTRUCTION. Removal of an impervious surface such that the underlying
structural aggregate base is effectively removed and the underlying native soil exposed.
SEASONAL HIGH WATER TABLE. The highest known seasonal elevation of
groundwater as indicated by redoximorphic features such as mottling within the soil.
SATURATED SOIL. The highest seasonal elevation in the soil that is in a reduced
chemical state because of soil voids being filled with water. Saturated soil is evidenced
by the presence of mottled features or other information.
SEDIMENT CONTROL. Methods employed to prevent sediment from leaving the
site. SEDIMENT CONTROL practices include silt fences, sediment traps, earth dikes,
drainage swales, check dams, subsurface drains, pipe slope drains, storm drain inlet
protection, and temporary or permanent sedimentation basins.
SHORELAND. Land located within the following distances from the ordinary high
water elevation of public waters:
(a) Land within 1,000 feet from the normal high watermark of a lake, pond or
flowage; and
(b) Land within 300 feet of a river or stream or the landward size of a floodplain
delineated by ordinance on the river or stream, whichever is greater.
STABILIZED. The exposed ground surface has been covered by appropriate
materials such as mulch, staked sod, riprap, erosion control blanket, mats or other
material that prevents erosion from occurring. Applying mulch, hydromulch, tackifier,
polyacrylamide, or similar erosion prevention practices is not acceptable stabilization in
temporary or permanent drainage ditches or areas where concentrated overland flow
occurs. Grass seeding is not stabilization.
STANDARD PLATES. General drawings having or showing similar characteristics or
qualities that are representative of a construction activity or practice.
STORM SEWER. A pipe system for stormwater conveyance.
STORMWATER. Defined under Minn. Rules 7077.0105, Subd. 41(b), meaning
precipitation runoff, stormwater runoff, snowmelt runoff, and any other surface runoff
and drainage.
STORMWATER FACILITY, PRIVATE. Any BMP that is maintained by a private
property owner, or other private entity and not maintained by a public agency.
STORMWATER MANAGEMENT PLAN. A plan for the permanent management and
control of runoff prepared and implemented in accordance with the standards set forth
in this chapter.
STORMWATER POLLUTION PREVENTION PLAN. A document which describes the
best management practices and activities to be implemented by a person or business to
identify sources of pollution or contamination at a site and the actions to eliminate or
reduce pollutant discharges to stormwater, stormwater conveyance systems, and/or
waterbodies to the maximum extent practicable.
STORMWATER POND. Constructed basins placed in the landscape to capture
stormwater runoff.
SUBDIVISION. The legal separation of an area, parcel, or tract of land under single
ownership into two or more parcels, tracts, lots.
SURFACE WATERS. All streams, lakes, ponds, marshes, wetlands, reservoirs,
springs, rivers, drainage systems, waterways, watercourses, and irrigation systems
whether natural or artificial, public or private.
UNDERGROUND WATERS. Water contained below the surface of the earth in the
saturated zone including, without limitation, all waters whether under confined,
unconfined, or perched conditions, in near surface unconsolidated sediment or regolith,
or in rock formations deeper underground. The term GROUND WATER shall be
synonymous with underground water.
WATER QUANTITY BEST MANAGEMENT PRACTICE. The use of on-site runoff
management practices such as biofiltration, infiltration, buffers/conservation areas,
impervious disconnection, and greenway connections to satisfy stormwater
management requirements.
WATERS OF THE STATE. As defined in M.S. § 115.01, Subd. 22,103G.005, Subd.
17 means surface or underground waters, except surface waters that are not confined
but are spread and diffused over the land. Waters of the state includes boundary and
inland waters.means all streams, lakes, ponds, marshes, watercourses, waterways,
wells, springs, reservoirs, aquifers, irrigation systems, drainage systems, and all other
bodies or accumulations of water, surface or underground, natural or artificial, public or
private, which are contained within, flow through, or border upon the state or any portion
thereof.
WETLAND. Land transitional between terrestrial and aquatic systems, as defined in
M.S. § 103G.005, Subd. 19.
(Ord. 09-15, passed 10-26-2015)
§ 1011.007 APPLICABILITY.
All land disturbing activity may be subject to standard erosion and sediment control
BMPs. A grading, erosion and sediment control permit and/or a stormwater
management permit shall be required for projects that meet or exceed the thresholds
established in §§ 1011.009 010 and 1011.010011.
(Ord. 09-15, passed 10-26-2015)
§ 1011.008 EXEMPTIONS.
The following land disturbing activities will be exempt from the grading, erosion and
sediment control and stormwater management permit requirements of this chapter:
(1) Cemetery graves;
(2) Routine agricultural activity such as tilling, planting, or harvesting of agricultural,
horticultural, or silvicultural (forestry) crops; and
(3) Emergency work necessary to protect life, limb, or property.
(Ord. 09-15, passed 10-26-2015)
§ 1011.009 TECHNICAL REFERENCES.
The following documents shall be used for technical reference:
(1) The Lino Lakes Surface Water Management Plan.
(2) The Lino Lakes Engineering Design Details.
(3) The Lino Lakes Standard City Specifications.
(4) The Rice Creek Watershed District (RCWD) Rules.
(5) The Vadnais Lakes Area Watershed Management Organization (VLAWMO)
Rules.
(Ord. 09-15, passed 10-26-2015)
§ 1011.010 GRADING, EROSION AND SEDIMENT CONTROL REQUIREMENTS.
(1) Grading, erosion and sediment control (ESC). A grading, erosion and
sediment control (ESC) permit including a grading, erosion and sediment control plan
shall be required for all proposed land disturbing activity unless otherwise exempted in
this chapter that meets any or all of the following:
(a) Includes excavation, filing, or stockpiling of erodible material in excess of 50
cubic yards per acre;
(b) Involves the laying, repairing, replacing, or enlarging of an underground utility,
pipe or other facility, or the disturbance of road ditch, grass swale, or other open
channel for a distance of 500 feet or more;
(c)(b) Disturbs more than one acre of land or 10,000 square feet if within 300
feet of a lake, stream or wetland and drains towards it; and/or
(d)(c) A land disturbing activity, regardless of size, that the city determines is
likely to cause an adverse impact to an environmentally sensitive area or other
property.
(2) Grading, erosion and sediment control plan design standards. Grading,
erosion and sediment control plans must comply with the following criteria:
(a) All plans shall be consistent with national pollutant discharge elimination
permit (NPDES) requirements, the city engineering design standards, the Lino Lakes
stormwater detail plates, and the filing or approval requirements of Rice Creek
Watershed District, Vadnais Lakes Watershed Management Organization, Anoka
County, Minnesota Department of Natural Resources, Minnesota Department of
Transportation, Minnesota Pollution Control Agency, U.S. Army Corps of Engineers,
State of Minnesota Stormwater Manual or other regulatory agencies;All site erosion
and sediment control practices shall be consistent with Minnesota Pollution Control
Agency document “Protecting water Quality in Urban Areas (1994) as amended and
City of Lin Lakes General Specifications and Standard Detail Plates for Street and
Utility Construction (January 2022 or current addition.
(b) Natural site topography and soil conditions must be specifically addressed to
reduce erosion and sedimentation during construction and after project completion;
(c) Site erosion and sediment control practices must be consistent with the
Minnesota Pollution Control Agency document Protecting Water Quality in Urban Areas
(2000), as amended, city-specific written design guidance, and be sufficient to retain
sediment on-site;
(d) The project must be phased as best possible to minimize disturbed areas and
removal of existing vegetation until necessary for project progress;
(e) The city may require additional erosion and sediment control measures on
areas with a continuous slope leading to a sensitive, impaired or special water body,
stream, ditch or wetland to assure retention of sediment on site;
(f) When site restrictions do not allow for a temporary sediment basin or less
than the required acreage is being developed, temporary sediment basins, where
appropriate, are encouraged. They are not required in areas with steep slopes, highly
erodible soils, or to take equivalent measures such as smaller basins, check dams, and
vegetated buffer strips;
(g)(f) The plan must include conditions adequate to protect facilities to be used
for post-construction stormwater infiltration;
(h) The plan must include conditions to minimize off-site sediment transport on
trucks and equipment, such as rock entrances;
(i) The plan must minimize work in and adjacent to water bodies and wetlands;
(j) Stable slopes shall be maintained throughout the construction process.
(k) Steep slopes and the need for high cuts and fills shall be avoided (no
slopes greater than 3(h): 1(v), except as approved by the City Engineer).
(l)(g) Protection shall be provided to minimize disturbance to surrounding soils,
root systems and trunks of trees adjacent to site activity that are intended to be left
standing.
(m)(h) Compaction of site soils shall be minimized.
(n)(i) All imported materials shall be approved by the City Engineer prior to
placement on the site.
(o)(j) Appropriate on-site containment must be provided for all trash, solid
waste, construction debris, floating debris, and hazardous materials. Disposal of
collected sediment shall be deposited only in approved locations.
(3) Grading, erosion and sediment control (ESC) required exhibits. The plan shall
be prepared and signed by a duly licensed professional engineer in the State of
Minnesota. The following exhibits must accompany the permit application: two plan
sets, full size (22 inches by 34 inches); and one electronic copy in a .pdf format.one
plan set, reduced to maximum size of 11 inches by 17 inches. Additional copies may be
required in accordance with applicable zoning and subdivision provisions of city code.
All plan sets shall also be submitted electronically in a .dwg format or as otherwise
determined by the City Engineer. The minimum requirements of the grading, erosion,
and sediment control plan shall be consistent with the most recent version of the
NPDES permit requirements and include the following information:
(a) Project name and type (residential, commercial, industrial, road construction,
or other)and location;
(b) Project location;
(c)(b) Address, cCounty parcel identification number (and legal description of the
property);
(d)(c) Names and addresses of the record owner, developer, land surveyor,
engineer, designer of the plat, and any agents, contractors, and subcontractors who will
be responsible for project implementation, including the name, address and phone
number of the party responsible for maintenance of all erosion and sediment control
measures;
(e)(d) Tabulation of construction implementation schedule, including: estimated
start date, time frames, and schedules for each construction phase, and completion
date;
(f)(e) Copies of permits or permit applications required by any other government
entity or agencies including mitigation measures required as a result of any review for
the project (e.g., wetland mitigation, EAW, EIS, archaeology survey);
(g)(f) Existing conditions map. An existing topographic site map, drawn to a
legible scale and clearly labeled with a north arrow and date of preparation. The plan,
based on a certificate of survey, shall include the following information:
1. Property lines and lot dimensions;
2. Existing zoning classifications for land within and abutting the
development, including shoreland, floodway, floodway fringe, or general floodplain, and
other natural resource overlay districts;
3. All buildings and outdoor uses including all dimensions and setbacks;
4. All public and private roads, interior roads, driveways and parking lots;
5. Show ordinary high water marks of all navigable waters, 100-year critical
flood duration event elevations, and delineated wetland boundaries, if any. If not
available, appropriate flood zone determination or wetland delineation, or both, may be
required at the applicant's expense;
6. Identify all special waters and impaired waters, as identified in the most
recent listing by the MPCA, within one mile of the project that receive runoff from the
project;
7. Location of drainage areas, existing storm sewer facilities, including pipes,
manholes, catch basins, ponds, swales and drainage channels within 100 feet of the
subject property. Existing pipe sizes, grades, rim and invert elevations, and normal and
high water elevations must be included;
8. Existing contours at one foot intervals, shown as dashed lines for the
subject property and extending 100 feet beyond the outside boundary of the proposed
plat;
9. Steep slopes where areas with an average slope of more than 12% over a
distance of at least 50 feet, or bluff areas as defined in the shoreland ordinance,
whichever is applicable; and
10. Wooded areas, high quality native plant communities, or other officially
designated natural resource areas.
(h)(g) Proposed conditions map.
1. Maps identifying areas discussed in (3)(gf)1. through (gf)10. of this
section.
2. Location, size, and approximate grade of proposed public sewer and
water mains.
3. Elevations, sections, profiles, and details as needed to describe all natural
and artificial features of the project.
4. Proposed grade contours at one-foot intervals shown as solid lines.
5. An estimate of the total volume (cubic yards) of materials proposed to be
imported to or exported from the site.
6. Provisions for groundwater management (dewatering), including
subsurface drains, disposals, ponding and flood controls.
7. Spot elevations at drainage break points and directional arrows indicating
site swale and lot drainage.
8. Proposed lot lines, lot and block numbers, building style, building pad
location and elevations at the lowest floor and garage slab, if applicable, for each lot.
9. Locations, sizes, grades, rim and invert elevations of all proposed
stormwater facilities, including ponds, proposed to serve the subject property.
10. The location of all oversize, non-typical easements including conservation
easements, if applicable.
11. Show the boundary of the 100-year flood elevations of all waterbodies.
12. Locations of all stormwater management practices, infiltration areas, and
areas not to be disturbed during construction.
13. Normal water level, high water level, and emergency overflow elevations
for the site and all associated ponding systems.
14. Location of areas where construction will be phased to minimize duration
of exposed soil areas. Include map and calculations as necessary of areas of grubbing,
clearing, tree removal, grading, excavation, fill, and other disturbance; areas of soil or
earth material storage; quantities of soil or earth material to be removed, placed, stored,
or otherwise moved on site, and delineated limits of disturbance.
15. Location and type of all temporary and permanent erosion prevention,
sediment control, stormwater runoff, and soil stabilization BMPs, along with procedures
to be used to establish additional temporary BMPs as necessary for the site conditions
during construction. Standard plates and/or specifications for the BMP's used on the
project must be included in the final plans and specifications for the project. Location
and design of temporary sediment basins where ten acres or more (five acres or more
for special or impaired waters) are disturbed and drained to a single point. When site
restrictions do not allow for a temporary sediment basin or less than the required
acreage is being developed, temporary sediment basins where appropriate are
encouraged, but not required in areas with steep slopes or highly erodible soils or to
take equivalent measures such as smaller basins, check dams, and vegetated buffer
strips.
16. Methods to be used for final stabilization of all exposed soil areas.
17. Documentation that the project applicant has applied for the NPDES
permit from the Minnesota Pollution Control Agency (MPCA), when applicable.
18. A stormwater pollution prevention plan for projects that require an NPDES
permit.
(4) Construction activity requirements. Any activity subject to a permit under this
chapter must conform to the standards of the NPDES general permit regarding
construction-site erosion and sediment control.
(5) Inspections. (See also § 1101.011.)
(a) The applicant shall be responsible for inspection, maintenance and
effectiveness of all erosion and sediment control measures until final soil stabilization is
achieved.
(b) The city may inspect the project site and require the applicant to provide
additional erosion control measures as it determined conditions warrant.
(6) Final stabilization.
(a) Erosion and sediment control measures must be maintained until final
vegetation and ground cover is established to a density of 70% over the entire pervious
surface area.
(b) All temporary erosion and sediment control BMPs will be removed after all
disturbed areas have been permanently stabilized.
(Ord. 09-15, passed 10-26-2015)
§ 1011.011 STORMWATER MANAGEMENT REQUIREMENTS.
(1) Stormwater management. A permit incorporating an approved stormwater
management plan shall be required for all proposed land development activity including
public linear projects, unless otherwise exempted in this chapter, which meets any or all
of the following:
(a) A development, redevelopment or reconstruction, except public linear
projects, that creates or reconstructs 10,000 square feet or more of impervious surface,
including smaller individual sites that are part of a common plan of development that
may be constructed at different times.
(b) A subdivision of an area exceeding one acre. This includes subdivision for
single-family residential, multi-unit residential, commercial, industrial, or institutional
development.
(c) For public linear projects, a permit is required when one or more acres of
impervious surface will be to created or reconstructed 10,000 square feet or more of
impervious surface through multiple phases or connected actions of a single project, as
defined by the city.
(d) The site is within the 100-year floodplain; within 1,000 feet of a public water or
protected wetland; impacts a wetland; and/or within 300 feet of Rice Creek, Clearwater
Creek, Hardwood Creek, or a public ditch.
(e)(d) Any land disturbing activity, regardless of size, that the city determines
would otherwise cause an adverse impact to an environmentally sensitive area or other
property including areas within floodplain and shoreland districts.
(2) Exceptions
(f)(a) A permit is not required for single family residential construction on an
individual lot of record, if the proposed impervious surface of the lot is less than 10,000
square feet, excluding the driveway. Stormwater management requirements do not
apply to development of an individual lot within a residential subdivision if it conforms to
an approved development plan.
(g)(b) Stormwater management requirements do not apply to sidewalks and
trails ten feet wide or less that are bordered down-gradient by vegetated open space or
vegetated filter strip with a minimum width of five feet, however the grading, erosion and
sediment control requirements are still effective.
(h)(c) Stormwater management requirements do not apply to bridge spans, mill,
reclamation and overlay projects that do not expose underlying soils.
(i) Stormwater Management Requirements do not apply to bridge span projects,
however grading, erosion and sediment control requirements are still effective.
(d) Stormwater Management Requirements do not apply to single family
residential subdivisions creating seven or fewer lots that:
2. Establish no new public roadway; and
3. Includes no private roadway/driveway serving three or more lots
(2)(3) Stormwater management performance standards. Site plans for new
development of any kind will be assessed for stormwater quantity control and
stormwater quality managementA stormwater management plan shall be submitted with
the permit application for a project equaling or exceeding the threshold of Section 2. .
The plan shall be designed general policy on stormwater runoff rates is to reduce the
impacts of development by maintaining predevelopment hydrological conditions in the
following ways:
(a) Use of natural topography. The applicant shall incorporate the use of natural
topography and land cover such as natural swales and depressions as they exist before
development to the degree that they can accommodate the additional flow of water
without compromising the integrity or quality of the receiving waterbody.
(b) Minimize impact to natural features. The development shall minimize impact
to significant natural features. Applicant shall review the site for natural features
protected under city, state or Federal requirements, including steep slopes, wetlands,
wooded areas, endangered or threatened species, or species of concern habitat, areas
designated by the county biological survey, greenways, parks and open space,
groundwater recharge areas, wellhead or surface water protection areas or regional
stormwater pond locations.
(c) Conveyance system. Wherever possible untreated and treated stormwater
runoff shall be conveyed in facilities open to the atmosphere (e.g. swales, vegetated
buffer strips, energy-dissipating structures, and the like) rather than through enclosed
pipes, so as to decrease runoff velocity, allow for natural infiltration, allow suspended
sediment particles to settle, and to remove pollutants.
(d) Proposed development design shall:
1. Maintain or decrease runoff volume, where practicable;
2. Decrease erosion and sedimentation;
3. Maintain or decrease flow frequency, duration, and peak runoff
rates;
4. Increase infiltration (groundwater recharge) or filtration;
5. Maintain existing flow patterns;
6. Reduce time to peak flows by increasing the time of concentration
to and through storm sewers;
7. Provide storage of stormwater runoff on site;
8. Avoid channel erosion;
9. The proposed project must not adversely affect water level off the
site during or after construction; and
10. The proposed activity may not reduce hydraulic efficiency of the
drainage ways at any point up-gradient of the applicant's parcel boundary.
10.11. A combination of Stormwater BMPs may be used to meet
the requirements of section(s) 6, 7, or 8
(e) Landlocked basins. A landlocked basin may be provided an outlet
only if it:
1. Retains a hydrologic regime that complies with the requirements of
the local governmental unit (LGU) responsible for administration of the Wetland
Conservation Act (WCA);
2. Provides sufficient dead storage volume to retain back to back 100-
year, 24-hour rainfalls and runoff; and
3. Does not create adverse downstream flooding or water quality
conditions as a result of increased discharge rate or volume, or other factors.
(f) All plans shall be consistent with National Pollutant Discharge Elimination permit
(NPDES) requirements, the Lino Lakes engineering design standards, the Lino Lakes
stormwater design standards, and the filing or approval requirements of Rice Creek
Watershed District, Vadnais Lakes Watershed Management Organization, Anoka
County, Minnesota Department of Natural Resources, Minnesota Department of
Transportation, Minnesota Pollution Control Agency, U.S. Army Corps of Engineers,
State of Minnesota Stormwater Manual or other regulatory agencies.
(4) Comprehensive Stormwater Management Plan.
(a) The City of Lino Lakes may develop a comprehensive stormwater
management plan (CSMP) as an alternative way to meet the stormwater requirements
of the local watershed agencies for development within a defined area and a common
resource of concern (ROC). The CSMP will be submitted to the applicable watershed
district for review and must comply with the requirements of the watershed district. .
(b) The following Comprehensive Stormwater Management Plans are
adopted and in effect:
1. Legacy at Woods Edge Development (LWED) CSMP (August 2016):
The LWED CSMP sets forth an alternate means of meeting the standards of Rule C for
the LWED. The LWED is defined as that area within the City of Lino Lakes bounded by
1-35W to the north, Town Center Parkway to the south, and Lake Drive to the west.
The following LWED CSMP policies and regulations supersede portions of Rule C
within the LWED:
i Rule C – 6. Water Quality Treatment and 7. Peak Stormwater
Runoff Control: Private development shall not exceed the impervious areas listed in
Appendix E of the LWED CSMP. If developers choose to exceed the impervious limits,
they will be required to address any additional stormwater requirements within that
parcel at their own expense and demonstrate how the additional runoff will be treated to
meet the applicable Rice Creek Watershed District rules. Any such best management
practices (BMPs) will be considered private and be maintained by the owner/developer
of the parcel.
2. Northeast Lino Lakes Drainage Area (NEDA) CSMP (September
2018): The NEDA CSMP sets forth an alternate means of meeting the standards of
Rule C for the Northeast Drainage Overlay District (NDOD). The NDOD is defined as
that area within the City of Lino Lakes bounded by Main Street to the south, the City of
Hugo to the east, Lake Peltier to the west and Rehbein Street to the north. The
following NEDA CSMP policies and regulations supersede portions of Rule C within the
NDOD:
i Rule C – 6. Water Quality Treatment: Rice Creek Watershed
District’s water quality treatment requirements shall be met through a variety of
measures as is feasible on a regional or development- by-development basis. On-site
infiltration is not feasible for most of the NDOD due to poor soils, high groundwater and
the presence of wetlands. As development proceeds within the NDOD, developers shall
be required to demonstrate that infiltration is not feasible on-site before utilizing any
regional basins or other BMP alternatives.
ii Rule C – 7. Peak Stormwater Runoff Control: Private development
shall be restricted to an allowable flow rate of 0.1 cfs per acre for the 100-year, 24-hour
peak discharge rate. This will result in a maximum peak discharge rate from the NDOD
into Peltier Lake of no more than 135 cfs. This restriction may be met through a
combination of rate control practices on a regional or development-by-development
basis.
(3)(5) Stormwater management plan modeling requirements. The City adopts
by reference RCWD Rule C4. Modeling for Stormwater Management Plans, as
amended.
(a) A hydrograph method or computer program based on Natural Resources
Conservation Service Technical Release #20 (TR-20) and subsequent guidance must
be used to analyze stormwater runoff for the design or analysis of flows and water
levels within and off the project site. Composite curve numbers shall not include directly
connected impervious surfaces.
(b) In determining curve numbers to model runoff in the post-development
condition, the hydrologic soil group (HSG) of areas within construction limits is to be
shifted down one classification (or one-half classification for HSG A) to account for the
impacts of grading on soil structure unless the project specifications incorporate soil
amendments in accordance with Rice Creek Watershed District Soil Amendment
guidelines.
(c) The following curve numbers (Table 1) shall be utilized for modeling of those
site areas not covered by impervious surface:
Table 1. Curve numbers for use with pervious areas
Hydrologic
Soil Group
Existing
Runoff Curve
Number *
Post-Construction Runoff Curve
Number**
Undisturbed
Land
Disturbed
Land
A 39 39 49
B 61 61 74
C 74 74 80
D 80 80 80
* Curve numbers from USDA-NRCS, Technical Release 55
** Rice Creek Watershed District 2013 Rules
The analysis of flood levels, storage volumes, and discharge rates for
waterbodies and stormwater management basins must include the NOAA Atlas 14
values, as amended, for the two-year, ten-year and 100-year return period, 24-hour
rainfall events and the ten-day snowmelt event, in order to identify the critical duration
flood event. The ten-day snowmelt event is simulated by a 7.2 inch, ten-day spring
runoff event during which it is assumed the ground is frozen solid and no infiltration
occurs (CN set to 100 for all areas). The City Engineer may require analysis of
additional precipitation durations to determine the critical duration flood event. Analysis
of the ten-day snowmelt event is not required for stormwater management detention
basins with a defined outlet elevation at or below the 100-year, 24-hour event elevation.
(4)(6) Water quality treatment. The City Adopts by reference RCWD Rule C6.
Water Quality Treatment as amended.
(a) Land development activities creating impervious surface shall address the
use of better site design (BSD) techniques as outlined in the better site design and low
impact development sections of the Minnesota Stormwater Manual (MPCA, 2014 and
subsequent revisions).
(b) The water quality treatment volume standard for all projects, except public
linear projects, is determined as follows (Table 2):
Table 2. Required quality volume calculations for new or reconstructed
developments
BMP BMP Design
Variation
Water Treatment Volume
Calculation [ft3]
Infiltration Infiltration
Feature
Impervious surface [ft2] * 1.1 [in] /12
[in/ft]
Water Reuse Irrigation Impervious surface [ft2] * 1.1 [in] / 12
[in/ft]
Biofiltration Underdrain Impervious surface [ft2] * 1.1 [in] /
(0.65 * 12 [in/ft])
Filtration Sand or Rock
Filter
Impervious surface [ft2] * 1.1 [in] /
(0.50 * 12 [in/ft])
Stormwater
Wetlands
Shallow Wetland Impervious surface [ft2] * 1.1 [in] /
(0.40 * 12 [in/ft])
Pond/Wetland Impervious surface [ft2] * 1.1 [in] /
(0.55 * 12 [in/ft])
Stormwater
Pond
Wet Pond Impervious surface [ft2] * 1.1 [in] /
(0.50 * 12 [in/ft])
Multiple Pond Impervious surface [ft2] * 1.1 [in] /
(0.60 * 12 [in/ft])
(c) The required water quality treatment volume standard for public linear
projects is determined as follows:
Require
d Water Quality
Treatment
Volume [ft 3]
= Area of
New or
Reconstructe
d Impervious
Surface [ft2]
x 0.7
5 [in]
÷ 1
2 [in/ft]
(d) Public linear projects shall meet the requirements of the Rice Creek
Watershed District (RCWD) or Vadnais Lakes Area Water Management Organization
(VLAWMO) as applicable.
(e) Infiltration BMPs (see city BMP standard plates and design criteria) are to be
incorporated in areas with A and B hydrologic soil groups. Stormwater from impervious
surfaces other than rooftops must be pretreated before discharge to infiltration BMPs, to
remove sediment and floatables, or other materials that would restrict the BMP's
capacity or contaminate ground water.
(f) If the project meets any of the following conditions listed in Table 3, infiltration
is prohibited and the water quality volume requirements shall be provided the remaining
options in Table 2:
Table 3. Specific conditions that may restrict inflitration.
Type Specific Site Conditions
Potential Contamination
Potential stormwater hotspots
[PSH]
Contaminated soils
Vehicle fueling and maintenance
areas
Physical Limitations
Low permeability soils [HSG C and
D]
Bedrock within three vertical feet of
bottom of infiltration area
Seasonal high water table within
three vertical feet of bottom of infiltration
area
Where soil infiltration tests are
more than 8.3 inches per hour
Land Use Limitations Utility locations
Adjacent wells
BMPs must provide infiltration where feasible. If the city concurs that the
infiltration BMPs are not feasible or directs that infiltration not be used, then any BMP
may be chosen. If infiltration is feasible on-site, then a regionally-sited BMP must
provide equivalent runoff volume reduction.
(5)(7) Peak stormwater runoff control. The City adopts by reference RCWD Rule
C7. Peak Stormwater Runoff Control as amended.
(a) Stormwater runoff rates for the proposed project at the site boundary, in
aggregate, must not exceed existing runoff rates for the critical two-, ten-, and 100-year
frequency events.
(b) Any increase in a critical event rate at a specific point of discharge from the
site must be limited and cause no adverse down gradient impact. The project must meet
the hydroperiod standards found in Table 4 with respect to all down-gradient wetlands.
Table 4. Hydroperiod standards
Wetland
Susceptibility
Class
Permitted
Storm Bounce for
2-year and 10-year
Event*
Inundation
Period for 2-year
Event*
Inundation
Period for 10-year
Event*
Highly
Susceptible
Existing Existing Existing
Moderately
Susceptible
Existing +
0.5 ft
Existing + 1
day
Existing + 7
days
Slightly
Susceptible
Existing +
1.0 ft
Existing + 2
days
Existing +14
days
Least
Susceptible
No Limit Existing + 7
days
Existing + 21
days
* Duration of 24-hours for the return periods utilizing NOAA Atlas 14
precipitation data. Source: Adapted from Rice Creek Watershed District 2013 Rules.
Wetland Susceptibility Class is determined based on wetland type, as follows:
Highly susceptible wetland types include: sedge meadows, bogs, coniferous
bogs, open bogs, calcareous fens, low prairies, coniferous swamps, lowland hardwood
forests, and seasonally flooded water basins.
Moderately susceptible wetland types include: shrub-carrs, alder thickets, fresh
(wet) meadows, and shallow and deep marshes.
Slightly susceptible wetland types include: floodplain forests and fresh wet
meadows or shallow marshes dominated by cattail giant reed, reed canary grass or
purple loosestrife.
Least susceptible wetland includes severely degraded wetlands. Examples of
this condition include cultivated hydric soils, dredge/fill disposal sites and some gravel
pits.
Exceptions. Rate control criteria of division (5) may be waived if the site
discharges directly to a water body with large storage capacity (such as a public water)
that has a time-to-peak elevation greater than that for an on-site pond and the volume
discharged from the on-site pond is negligible, relative to the volume of runoff entering
the water body.
(6)(9) Design criteria. Best Management Practices shall be designed in
accordance with the following standards:
(a) Infiltration BMPs. Infiltration BMPs must be designed to provide:The City
adopts by reference RCWD Rules C.9.(a) as amended.
1. Adequate pretreatment measures to remove sediment before runoff
enters the primary infiltration area;
2. Drawdown within 48-hours or 72-hours from the end of a storm
event, for surface or sub-surface features, respectively. Soil infiltration rates shall
be based on the appropriate HSG classification and associated infiltration rates
(Table 5). Infiltration area will be limited to the horizontal areas subject to
prolonged wetting;
Table 5. Soil Infiltration Rates.
HSG Soil Tecture* Corresponding Unified Soil Classification** Infiltration
Rate
[in/hr]
A Gravel
Sandy Gravel
Silty Gravel
GW Well-graded gravels, sandy gravels 1.63
GP Gap-graded or uniform gravels, sandy
gravels
GM Silty Gravels, silty sandy gravels
SW Well-graded or uniform sands, gravelly
sands
Sand
Loamy Sand
Sandy Loam
SP Gap-graded or uniform sands, gravelly
sands
0.8
B Loam
Silt Loam
SM Silty sands, silty gravelly sands 0.45
MH Micaceous silts, diatomaceous silts
volcanic ash
0.3
C Sandy Clay
Loam
ML Silts, very fine sands, silty or clayey
fine sands
0.2
D Clay Loam
Silty Clay
Loam
Sandy Clay
Silty Clay
Clay
GC Clayey gravels, clayey sandy gravels .06
SC Clayey sands, clayey sandy gravels
CL Low plasticity clays, sandy or silty clays
OL Organic silts and clays of low plasticity
CH Highly plastic clays and sandy clays
OH Organic silts and clays of high plasticity
Source: Adapted from the "Design Infiltration Rates" table from the Minnesota
Stormwater Manual, MPCA (January 2014).
* U.S. Department of Agriculture, Natural Resources Conservation Service, 2005.
National Soil Survey Handbook, title 430-VI. (Online) Available:
http://soils.usda.gov/technical/handbook/.
** ASTM standard D2487-00
3. A minimum of three feet of separation from the seasonal high water
table.
4. Design and placement in accordance with the 2007 Minnesota
Department of Health guidance Evaluating Proposed Stormwater Infiltration
Projects in Vulnerable Wellhead Protection Areas.
(b) Water reuse. The City adopts by reference RCWD Rules C.9.(b) as
amended.Water reuse BMPs must be designed to provide:
i design-An maximum irrigation rate of one-inch per week
over the irrigated lawn/turf grass area(s);
ii No greater than a 26 week (April 15 to October 15) growing
season; and
2. No increase in stormwater runoff from the irrigated area or project
site.
i The amount of water quality treatment volume credit given
will be based upon the three year average of the volume irrigated,
determined by the average of three years of monitoring records.
(c) Biofiltration and filtration BMPs. The City adopts by reference RCWD
Rules C.9.(c) as amended.Biofiltration and filtration BMPs must be designed to
provide:
1. Adequate pretreatment measures to remove sediment before runoff
enters the primary biofiltration area;
2. Drawdown within 48-hours or 72-hours from the end of the storm
event for surface or sub-surface features, respectively;
3. A minimum of 12-inches of organic material or sand above the rock
trench or drain tile system; and
4. Drain tile system must be designed above the seasonal high water
table.
(d) Stormwater ponds. The City adopts by reference RCWD Rules C.9.(d) as
amended.
(d)(e) Soil Borings. The City adopts by reference RCWD Rules C.9.(e) as
amended.Stormwater ponds must be designed to provide:
1. Water quality features consistent with NURP criteria and city
standard plate;
2. Permanent wet pool with dead storage at least equal to the runoff
from a two and one half inch rainfall over the area tributary to the pond
3. An outlet structure capable of preventing migration of floating debris
and oils for at least the one-year storm.
4. An outlet structure to control the two-year, ten-year and 100-year
frequency events to existing peak runoff sites; and
5. An identified overflow spill way sufficiently stabilized to convey
flows greater than the 100-year critical storm event.
(e)(f) Outfalls. An outfall structure discharging to a wetland, public water or
public water wetland must incorporate a stilling-basin, surge-basin, energy dissipater,
placement of ungrouted natural rock riprap or other feature to minimize disturbance
and erosion of natural shoreline and bed resulting from stormwater dischargesThe
City adopts by reference RCWD Rules C.9.(f) as amended.
(f)(g) Freeboard requirements. All new residential, commercial, industrial and
other habitable or non-habitable structures, and all stormwater basins, must be
constructed so that the lowest floor and lowest entry elevations of structures comply
with the following:Table 6.
Table 6. Low floor and low entry freeboard requirements
Regional
Elevations
Local Detention
Basins &
Wetlands
Infiltration Basins Rain
Gardens
Groundwater1
Elevation 100 year EOF 100
year
EOF Bottom 100
year
EOF EOF Seasonal High
Level
Low Floor
Freeboard
2–ftft. 1-ft 0-ft N/A 0-ft N/A N/A N/A 4-ft
Low Entry
Freeboard
N/A N/A 2-ft 1-ft N/A 2-ft 1-ft 0.5-ft N/A
1 The seasonal high groundwater level shall be determined within 12 months of proposed construction
of the structure by a soil scientist or geotechnical engineer registered in the State of Minnesota as
indicated by redoximorphic features such as mottling within the soil or by direct groundwater
observation.
(h) Within a landlocked basin, lowest floor elevations must be at least one foot
above the surveyed basin overflow elevation. Where a structure is proposed below the
runoff elevation of a land-locked basin, the low-floor elevation will be a minimum of two
feet above the high water level as determined from an estimate of high water levels
determined from the highest of either the 100-year, ten-day runoff event or back-to-
back 100-year, 24-hour rainfalls. Aerial photos, vegetation, soils, and topography will
be used to derive a "normal" water elevation for the basin for the purpose of computing
the 100-year elevation.
(10) Drainage and utility easements.
(a) If a stormwater management plan involves direction of some or all runoff off of
the site, it shall be the responsibility of the applicant to obtain from adjacent property
owners any necessary easements or other property interests concerning flowage of
water.
(b) Easements are required for all stormwater management facilities, stormwater
conveyances and on-site floodplain and shall extend a minimum of ten feet beyond the
basin's normal water level or the 100-year storm high water level elevation, whichever
is greater.
(c) Easements are required for all outlet swales and ditches, and for overland
overflow routes located downstream of basins located on site.
(d) If the storm sewer is to be installed less than ten feet deep within private
property, the easement shall be a minimum of 20 feet wide. If the storm sewer is ten
feet or greater, the easement shall be twice as wide as the depth.
(e) Easements necessary for maintenance vehicle access are required for all of
the above where not directly available on a public road.
(11) Wetlands. Runoff shall not be routed directly to wetlands without first passing
through an appropriate settling or approved pre-treatment basin. Said basins must
meet standards for volume and flow directed to the basin
(a) A protective buffer strip of natural vegetation shall surround all wetlands as
follows:
1. Where RCWD is the Local Government Unit (LGU) for administration of
the Minnesota Wetland Conservation Act (WCA) the City adopts RCWD Rule F.6.(e), as
amended. Wetlands not subject to RCWD Rule F.6. (e) shall have a minimum buffer
width of 10’.
2. Where Vadnais Lakes Area Water Management Organization (VLAWMO)
is the LGU for administration of WCA, the City adopts VLAWMO Water Quality
Standards Section 11, as amended.
(b) Wetlands must not be drained, filled, or altered, wholly or partially, unless in
compliance with and permitted under the most current rules adopted by the Minnesota
Board of Water and Soil Resources in the Wetland Conservation Act (WCA. Wetland
replacement must be guided by the following principles in descending order:
1. Avoidance.
2. Minimization.
3. Mitigation.
(c) Permits to work in wetlands must be obtained from the local water
management organizations, acting as local governmental units (LGU), with respective
jurisdiction with the City of Lino Lakes to administer the WCA.
(d) Permanent boundary markers, in the form of signage approved by the City of
Lino lakes, should be installed prior to final approval of the required clearing and
grading plan.
(11)(12) Stormwater management plan required exhibits. The stormwater
management plan shall be prepared and signed by a duly licensed engineer in the State
of Minnesota. The following exhibits must accompany the permit application: two plan
sets, full size (22 inches by 34 inches); and one electronic copy in a .pdf one plan set,
reduced to maximum size of 11 inches by 17 inches. Additional copies may be required
in accordance with applicable zoning and subdivision provisions of city code. Allformat.
All plan sets shall also be submitted electronically in a .dwg format or as otherwise
determined by the City Engineer. The minimum information requirements of the
stormwater management plan shall be consistent with the most recent version of the
NPDES permit requirements and include the following information:
(a) A grading, erosion and sediment control plan and, for projects that require a
NPDES permit, a stormwater pollution prevention plan (SWPPP) is required;
(b) Stormwater management plan including existing and proposed hydrologic
calculations for total runoff volume and peak discharge rates as described in this
chapter, including:
1. A narrative including a project description, discussion of BMP selection,
incorporation of infiltration BMPs, and revegetation plan for the project site;
2. Delineation of all drainage areas, including contributing runoff from off-site
areas, proposed and existing subwatersheds on-site, emergency overflows, and
drainage ways;
3. Existing, proposed, and total amount of impervious surfaces created by
the project;
4. Existing and proposed runoff curve numbers;
5. Time of concentration used in calculations; and
6. Existing and proposed total runoff volume and peak discharge rates for
the two-, ten-, and 100-year critical events utilizing NOAA Atlas 14.
(c) Property of lines and delineation of lands under ownership of the applicant.
(d) Locations of all stormwater management practices, infiltration areas, and
areas not to be disturbed during construction.
(e) Location of all drain tiles on the project site shall be identified.
(f) Location and engineered designs for structural stormwater management
practices including stormwater treatment devices that remove oil and floatable material
(e.g., basin outlets with submerged inlets).
(g) Normal water level, high water level, and emergency overflow elevations for
the site and all ponding systems related to NAVD88.
(h) Identification of existing and proposed one-foot contour elevations within the
project site related to NAVD88.
(i) Geotechnical analysis including soil borings at all proposed stormwater
management facility locations.
(j) Provisions for groundwater management (dewatering), including subsurface
drains, disposals, ponding and flood controls.
(k) Completed city worksheet explaining better site design techniques that were
evaluated during project design, the results of the evaluation of each and for any
techniques deemed infeasible.
(l) A long-term maintenance plan and schedule for all permanent stormwater
practices, along with the identity of the party responsible for the maintenance of the
project. The maintenance responsibility must be memorialized in a document executed
by the property owner in a form acceptable to the city and filed for record on the deed.
(m)Before work is deemed complete, as-built plans must be submitted
demonstrating that at the time of final stabilization, stormwater facilities conform to
design specifications.
(n) Other project site-specific submittal requirements as may be required by the
city.
(Ord. 09-15, passed 10-26-2015)
§ 1011.012 INSPECTIONS AND MAINTENANCE.
(1) Inspections. The applicant is responsible for inspections and record keeping in
accordance with the NPDES permit requirements. The city shall conduct inspections on
a regular basis to ensure that both stormwater and erosion and sediment control
measures are properly installed and maintained prior to construction, during
construction, and at the completion of the project. In all cases the inspectors will attempt
to work with the applicant or developer to maintain proper stormwater management.
Mandatory inspections, conducted by the city, are required as follows:
(a) Before any land disturbing activity begins;
(b) Five working days after footing inspections;
(c) At the completion of the project; and
(d) Prior to the release of financial securities.
(2) Post-construction inspection and maintenance of stormwater facilities.
(a) Private stormwater facilities. No private stormwater facility may be
approved unless a maintenance agreement is provided that defines who will conduct
maintenance, the type of maintenance, and the maintenance intervals. All private
stormwater facilities shall be inspected by the owner and maintained in proper condition
consistent with the performance standards for which they were originally designed.
1. Facility access. Access to all stormwater facilities must be
inspected annually and maintained as necessary. It shall be the responsibility of the
applicant to obtain any necessary easements or other property interests to allow access
to the facilities for inspection or maintenance for both the responsible party and the city.
2. Maintenance. All settled materials from ponds, sumps, grit chambers, and
other devices, including settled solids, shall be removed and properly disposed of once
capacity is reduced by 30%.
3. Inspection. All private stormwater facilities must submit an as-built record
plan of the facility and must provide documentation to the city of an inspection during
construction, during the first year of operation, and at least once every five years
thereafter. Private facilities are subject to city inspection at any time to ensure
compliance.
(b) Public stormwater facilities.
1. Acceptance of publicly owned facilities. Before work under the permit is
deemed complete, as-builts and certification must be submitted demonstrating at the
time of final stabilization that the stormwater facilities conform to design specifications.
A final inspection shall be required before the city accepts ownership of the stormwater
facilities.
2. Inventory of stormwater facilities. The city shall inventory and maintain a
database for all public stormwater facilities within the city requiring maintenance to
ensure compliance with this chapter.
(3) Maintenance. The city shall perform maintenance of publicly owned stormwater
facilities within the city as provided for in the local surface water management plan.
(Ord. 09-15, passed 10-26-2015)
§ 1011.013 PLAN REVIEW PROCEDURE.
Plan review. The applicant shall not commence any construction activity subject to
this chapter until the stormwater management plan and/or the grading, erosion and
sediment control plan have been approved by the city. The submittal shall be processed
in accordance with:
Ch. 1007.020 of city code as applicable. § 2 of the Zoning Ordinance or Ch. 1011 of
city code as applicable. City approval is contingent on issuance of all other permits
required by the city or other agencies having jurisdiction on the project. The following
standards shall apply to all developments within the city:
(1) Plan approval. If the city determines that the stormwater management plan
and/or the grading, erosion and sediment control plan meets the requirements of this
chapter, the city shall issue a plan approval valid for a specified period of time that
authorizes the land disturbance activity contingent on the implementation and
completion of this plan.
(2) Plan denial. If the city determines that the plan does not meet the requirements
of this chapter, the city shall not issue plan approval for the land disturbance activity.
This plan must be resubmitted for approval before the land disturbance activity begins.
All land use and building permits shall be suspended until the developer has an
approved ESC or stormwater management permit.
(3) Modification of plan. The applicant must amend the plan as necessary to include
additional requirements such as additional or modified BMPs designed to correct
problems identified or address situations whenever:
(a) A change in design, construction, operation, maintenance, weather, or
seasonal conditions that has a significant effect on the discharge or pollutants to
surface waters or underground waters;
(b) Inspections or investigations indicate the plans are not effective in eliminating
or significantly minimizing the discharge or pollutants to surface waters or underground
waters or that the discharges are causing water quality degradation;
(c) The plan is not achieving the general objectives of minimizing pollutants in
stormwater discharges associated with construction activity; or
(d) The plan is not consistent with the terms and conditions of this chapter.
(Ord. 09-15, passed 10-26-2015)
§ 1011.014 FINANCIAL SECURITIES.
The applicant shall be subject to the financial security provisions of the city
development agreement, site improvement performance agreement and/or the city
public improvement financing policy, as applicable.
(Ord. 09-15, passed 10-26-2015)
§ 1011.015 ENFORCEMENT.
(1) Notification of failure of the permit. The city shall notify the permit holder of the
failure of the permit's measures.
(a) Initial contact. The initial contact will be to the party or parties listed on the
application and/or the SWPPP as contacts. Except during an emergency action, 48
hours after notification by the city or 72 hours after the failure of erosion and sediment
control measures, whichever is less, the city at its discretion may begin corrective work.
Such notification should be in writing, but if it is verbal, a written notification should
follow as quickly as practical. If after making a good faith effort to notify the responsible
party or parties, the city has been unable to establish contact, the city may proceed with
corrective work. There are conditions when time is of the essence in controlling erosion.
During such a condition, the city may take immediate action and then notify the
applicant as soon as possible.
(b) Emergency action. If circumstances exist such that non-compliance with
this chapter poses an immediate danger to the public health, safety and welfare, as
determined by the city, the city may take emergency preventative action. The city shall
also take every reasonable action possible to contact and direct the applicant to take
any necessary action. Any cost to the city may be recovered from the applicant's
financial security.
(c) Erosion off site. If erosion breaches the perimeter of the site, the applicant
shall clean up and repair or supplement with functional BMPs within 24 hours of
discovery or immediately as conditions allow. If, in the discretion of the city, the permit
holder does not repair the damage caused by the erosion, the city may do the remedial
work required and charge the cost to the applicant. When restoration to wetlands and
other resources are required, the applicant shall be required to work with the
appropriate agency to ensure that the work is done properly.
(d) Erosion into streets, wetlands, or water bodies. If eroded soils (including
tracked soils from construction activities) enter or appear likely to enter streets,
wetlands, or other water bodies, cleanup and repair shall be immediate. The applicant
shall provide all traffic control and flagging required to protect the traveling public during
the cleanup operations.
(e) Failure to do corrective work. When an applicant fails to conform to any
provision of this policy within the time stipulated, the city may take the following actions:
1. Issue a stop work order, withhold the scheduling of inspections, and/or the
issuance of a certificate of occupancy.
2. Revoke any permit issued by the city to the applicant for the site in
question or any other of the applicant's sites within the city's jurisdiction.
3. Correct the deficiency or hire a contractor to correct the deficiency.
4. Require reimbursement to the city for all costs incurred in correcting
stormwater pollution control deficiencies. If payment is not made within 30 days after
costs are incurred by the city, payment will be made from the applicant's financial
securities as described above.
5. If there is an insufficient financial amount in the applicant's financial
securities as described above, then the city may assess the remaining amount against
the property. As a condition of the permit, the owner shall waive notice of any
assessment hearing to be conducted by the city, concur that the benefit to the property
exceeds the amount of the proposed assessment, and waive all rights by virtue of M.S.
§ 429.081 to challenge the amount or validity of assessment.
(2) Enforcement. The city shall be responsible for enforcing this chapter.
(c) Penalties. Any person, firm, or corporation failing to comply with or violating
any of these regulations shall be deemed guilty of a misdemeanor and be subject to a
fine or imprisonment or both. All land use and building permits shall be suspended until
the applicant has corrected the violation. Each day that a separate violation exists shall
constitute a separate offense.
(d) Right-of-entry and inspection; powers. The issuance of a permit constitutes a
right-of-entry for the city or its contractor to enter upon the construction site. The
applicant shall allow the city and their authorized representatives, upon presentation of
credentials, to:
1. Enter upon the permitted site for the purpose of obtaining information,
examination of records, conducting investigations or surveys;
2. Bring such equipment upon the permitted site as is necessary to conduct
such surveys and investigations;
3. Examine and copy any books, papers, records, or memoranda pertaining
to activities or records required to be kept under the terms and conditions of the
permitted site;
4. Inspect the stormwater pollution control measures; and
5. Sample and monitor any items or activities pertaining to stormwater
pollution control measures;
6. Correcting deficiencies in stormwater and erosion and sediment control
measures.
(Ord. 09-15, passed 10-26-2015)
§ 1011.016 ABROGATION AND GREATER RESTRICTIONS.
In the event of any conflict between the provisions of this chapter and the provisions
of any other city ordinance adopted by the City Council, the more restrictive standard
prevails.
(Ord. 09-15, passed 10-26-2015)
1
ENVIRONMENTAL BOARD
AGENDA ITEM 6B STAFF ORIGINATOR: Michael Grochala, Community Development Director MEETING DATE: October 26, 2022
REQUEST: Discussion – Draft Chloride Reduction/ Bulk Storage Ordinance APPLICANT City of Lino Lakes
BACKGROUND:
Section 18.6 of the Cities General Permit for Separate Storm Sewer System requires that the City adopt a regulatory mechanism (Ordinance) that requires proper salt storage at commercial, institutional, and non-NPDES Permitted industrial facilities. At a minimum the ordinance must require the following:
a. Designated salt storage areas must be covered or indoors; b. Designated slat storage areas must be located on an impervious surface; and c. Implementation of practices to reduce exposure when transferring material in designated salt storage areas (e.g., sweeping, diversions, and/containment
ANALYSIS
Deicers used to reduce ice and snow on roads, parking lots, and sidewalks often include salt, which contains chloride. Chloride is easily transmitted into lakes, streams, and groundwater. This has the potential to impact drinking water supplies, as well as the health of freshwater fish
and other aquatic life. Once in the water, there is no easy way to remove it. Residents experience the impacts of chloride in many ways:
• Fish and aquatic bugs – High amounts of chloride are toxic to fish, aquatic bugs, and
amphibians. Chloride can negatively affect the fish and insect community structure, diversity, and productivity, even at lower levels.
• Plants – Road salt splash can kill plants and trees along the roadside, and plants that take up salty water through their roots can also suffer, Chloride in streams, lakes, and
wetlands harms aquatic vegetation and can change the plant community structure.
• Salt-laden soil can lose its ability to retain water and store nutrients and be more prone to erosion and sediment runoff (which also harms water quality).
• Pets – Salt can sicken pets who consume it, lick it off their paws, or drink salty snow melt/runoff. It can also irritate their paw pads.
2
• Wildlife – Some birds, like finches and house sparrow, can die from ingesting deicing salt. Some salt-sensitive species are particularly at risk.
• Infrastructure – Chloride corrodes road surfaces and bridge and damages reinforcing
rods, increasing maintenance and repair costs.
The draft ordinance establishes minimum requirements for the safe storage of deicer materials. The requirements are applicable to all commercial, institutional and industrial properties in the City. Typically, these are uses that have large parking areas and routinely use deicers as part of
their snow removal procedures. ENVIRONMENTAL DIRECTION: Discussion Only. Staff is requesting comments or concerns regarding the proposed
requirements. Additionally the board should consider providing an opportunity for public feedback on the proposed ordinance. This could be in the form of a feedback survey or by holding a public hearing.
ATTACHMENTS: 1. Draft Chloride Reduction/ Bulk Storage
ORDINANCE NO. xx - 2022
AN ORDINANCE AMENDING SECTION 900 OF THE LINO LAKES CITY CODE, RELATING TO
NUSANCES, BY ADDING A NEW SECTION 905, CONCERNING STORAGE OF BULK DEICING
MATERIAL
The City Council of Lino Lakes Ordains:
Section 1. Chapter 900 of the Lino Lakes City Code is amended by adding a new section 905 as
follows:
905.01 FINDINGS
(1) The removal of snow and ice from roadways is essential to both public safety and to the local
economy and in order to protect the public safety, during and after winter storm events, the use
of pavement deicing chemicals is a widely accepted means of keeping roadways passable; and
(2) Pavement deicing is typically accomplished through the use of deicers which can be corrosive to
vehicles, roadway surfaces, and bridges and has been found to have adverse effects on the
surface waters, groundwater and to environmentally sensitive areas; and
(3) The restoration of surface and ground water quality and ecosystems in such areas can be very
difficult and costly, if not impossible to rehabilitate through reverse osmosis, once the events or
contamination occur; and
(4) Proper utilization and management of deicing materials is critical to ensure that the
environmental impacts of related practices are reduced to the maximum extent possible; and
(5) Negative environmental impacts may occur when salt and other deicers are not properly stored
and transported; and
(6) One of the primary sources of chloride entering the ground water is salt spillage that is either
plowed or washed from maintenance yards, unloading, and loading areas and it is necessary to
regulate all persons engaged in the storage and use of bulk deicing materials on their property
and elsewhere in order to reduce the costly impacts of such use to the surrounding vegetation,
surface water and ground water; and
905.02 DEFINITIONS
Definitions. For the purpose of this section the following words, terms, phrases, shall have the
meanings ascribed to them below.
Bulk Storage: means the storage of any deicing material (liquid or solid used for deicing during winter
conditions that is more than five tons in solid form (or 1,000 gallons in liquid form).
Deicer: means any substance used to melt snow and ice or used for its anti-icing effects.
905.03 APPLICABILITY
The following sections apply to all indoor and outdoor bulk deicer storage facilities ad facilities
(temporary and permanent) including salt piles, salt bag storage, sand piles and other storage of deicing
materials commercial, institutional, and non-NPDES permitted industrial properties within the City
905.04 Nuisance Declared: responsible party. It shall be a public nuisance for the owner of
commercial, institutional, or industrial property in the city, or for the owner or operation of a
business or nonprofit establishment on such property, to store bulk deicing materials on the
property in violation of this section.
905.05 GENERAL REQUIREMENTS
(1) Indoor operations for the storage of deicing materials must be provided wherever possible in
order to prevent such materials from being affected by rain, snow and melt water.
(2) All salt, sand and other deicing materials stored outdoors must be covered at all times.
(a) When not using a permanent roof, a waterproof impermeable, flexible cover must be placed over
all storage piles (to protect against precipitation and surface water runoff). The cover must
prevent runoff and leachate from being generated by the outdoor storage piles. The cover must
be secured to prevent removal by wind or other storm events. Piles must be formed in a conical
shape and covered as necessary to prevent leaching.
(b) Any roof leaks, tears or damage should be temporarily repaired during winter to reduce the
entrance of precipitation. Permanent repairs must be completed prior to the next winter season.
(c) Tanks used for liquid deicing material storage must be dual wall contained, or if a single wall tank
is used then a containment system must be in place surrounding the tank.
(3) Outdoor storage of deicing materials must be located on an impermeable surface.
(4) The facility must be in close proximity to the area in which the deicing materials are to be used, if
practical.
(5) Each facility must be located outside of floodplains and 300 feet from lakes, rivers, streams,
ditches, storm drains, manholes, catch basins, wetlands and any other areas likely to absorb
runoff. A facility must not be located in close proximity to surface water features, water supplies,
wells or drywells.
(6) The property slope must be away from the facility's salt, deicer, and sand storage area.
(7) Practices must be implemented in order to reduce exposure (e.g., sweeping, diversions, and/or
containment) when transferring salt or other deicing material.
905.06 ENFORCEMENT
The Police Department and any other officers, employees or agents as the Council may designate
shall enforce the provisions of this chapter. The officers shall have the power to inspect private
premises and take all reasonable precautions to prevent the commission and maintenance of public
nuisances. No person shall enter private property under this section without the express written
permission of the owner or occupant of the property. If permission is not granted, the provisions of
§ 101.14 concerning administrative search and seizure warrants shall be followed.
9050.07 ABATEMENT.
A nuisance under this section may be abated according to the provisions of Chapter 903.
Section 2. This ordinance shall be in effect 30 days after publication