Item 6.1 Storm Water Pollution Prevention Program
Request for
City Council Action
DEPARTMENT INFORMATION
ORIGINATING DEPARTMENT REQUESTOR: MEETING DATE:
Public Works City Engineer Wagner June 24, 2024
PRESENTER(s) REVIEWED BY: ITEM #:
City Engineer Wagner City Administrator/Finance Director Flaherty 6.1 – MS4 Storm Water
STRATEGIC VISION
MEETS: THE CITY OF OTSEGO:
X Is a strong organization that is committed to leading the community through innovative communication.
Has proactively expanded infrastructure to responsibly provide core services.
Is committed to delivery of quality emergency service responsive to community needs and expectations in a
cost-effective manner.
Is a social community with diverse housing, service options, and employment opportunities.
Is a distinctive, connected community known for its beauty and natural surroundings.
AGENDA ITEM DETAILS
RECOMMENDATION:
City Staff recommends the City Council hold a public meeting per the requirements of MPCA and the adopted Storm
Water Pollution Prevention Program.
ARE YOU SEEKING APPROVAL OF A CONTRACT? IS A PUBLIC HEARING REQUIRED?
No No
BACKGROUND/JUSTIFICATION:
The City of Otsego must annually hold a public meeting allowing residents to communicate any ideas, suggestions or
concerns they may have regarding storm water within the City.
SUPPORTING DOCUMENTS ATTACHED:
• MPCA Storm Water Brochure
• Stormwater Pollution Illicit Discharge Article from City Newsletter
POSSIBLE MOTION
PLEASE WORD MOTION AS YOU WOULD LIKE IT TO APPEAR IN THE MINUTES:
No action or motion required.
BUDGET INFORMATION
FUNDING: BUDGETED:
Fund 222 – Storm Water Utility
Yes
When stormwater drains off a construction
site, it carries sediment and other
pollutants that can harm lakes, streams,
and wetlands. The U.S. Environmental
Protection Agency estimates that a
one-acre construction site can lose as
much as 20 to 150 tons of soil every year
due to erosion and stormwater runoff.
What can you do to protect receiving
waters from pollution?
See the 10 Steps to Stormwater Pollution
Prevention inside of this pamphlet to learn
ways to minimize sediment from leaving
your construction site. By following these
steps, you can help keep our water clean!
PROTECT WATER
A common plan of development or sale
is a connected area where separate
construction activities may happen at
different times, on different schedules,
but under one proposed plan.
Examples of common plans include:
Residential subdivisions
Commercial/industrial parks
Phased projects
EXAMPLE: You need a permit if you are working
on one 0.3-acre lot that is part of a 5-acre
development.
Subdivision registration is available for
sites that are within a common plan of
development that already has permit
coverage.
COMMON PLANS
www.pca.state.mn.us
651-296-6300 | 800-657-3864
info.pca@state.mn.us
You need a construction stormwater
permit if your project disturbs:
One or more acres of soil
Less than one acre, but part of a larger
plan of more than one acre
1+
.15acres
DON’T FORGET!
Online permit applications:
www.pca.state.mn.us/water/
construction-stormwater
Apply for your construction stormwater
permit BEFORE construction begins!
wq-strm2-111
800-657-3864 | info.pca@state.mn.us
www.pca.state.mn.us
Graphic courtesy US EPA. Adapted by MPCA.
Site St abilization
Immediately stabilize exposed portions
of the site whenever construction work will
stop for 14 or more days, even if work is
on ly temporarily stopped. Remember, final
stabilization is required pr ior to terminating
permit coverage.
Keep in mind that temporary or permanent
stabilization must be completed within 7 days if
your project is within 1 mile of a special or
impaired water.
Keep an Up -to-Date Copy
of Your SWPPP on Site
Keep a copy of your complete and
up-to-date SWPPP, including site maps
showing where each BMP is or will be
installed, and records of the site inspections
completed by a trained inspector on site
and easily accessible.
Maintain a Stabilized Exit Pad
Minimize sediment track out from vehicles
exiting your site by maintaining an exit pad made of
crushed rock spread over geotextile fabric, a shaker rack,
or a wash rack at the construction site exit. If sediment
track-out occurs, remove deposited sediment within 24 hours
of discovery.
Install a Concrete/Stucco Washout Basin
Designate a leak-proof basin lined with
plastic for washing out used concrete and stucco
containers. Never wa sh excess stucco or concrete
residue down a storm drain or into a stream!
Install Inlet Controls
Sediment control logs, gravel barriers, and
sand or rock ba gs are options for e ective inlet controls.
Make sure to remove accumulated sediment whenever
the device becomes nonfunctional.
Install Perimeter
Controls on
Downhill Lot Line
Install perimeter controls such as
sediment filter logs or si lt fences
around the downhill boundaries of your site.
Make sure to remove accumulated sediment
whenever it has reached halfway up the control.
Designate Waste Disposal Areas
Clearly identify separate waste disposal areas
on site for hazardous wa ste, construction waste,
and domestic wa ste by designating with
signage, and protect from run-on
and runo.
Protect Construction Materials from Run-On and Runo
At the end of every workday and during precipitation events, prov ide
cover for materials that could leach pollutants.
Stockpile Yo ur Soil
MPCA’s CGP requires operators to preserve native topsoi l on site unless
infeasible and protect all soil storage piles from run-on and runo. For smaller
stockpiles, covering the entire pi le with a tarp may be sufficient.
Protect Any Areas Reserved for Vegetation or Infiltration and Preserve Existing Tr ees
If you will be installing infiltration-based features such as ra in gardens or bioswales,
make sure these areas are designated as o limits to avoid compaction.
Save time and money by preser ving existing mature trees during construction.
Preserving mature trees minimizes the amount of soil that needs to be stabilized
once construc tion is complete, and minimizes the amount of runo du ring and after
construction activity.
10 Steps to Stormwater Pollution Prevention on Small Residential Construction Sites
NOTE: This graphic does not address post-construction stormwater treatment permit requirements
STORMWATER POLLUTION:
ILLICIT DISCHARGE
What is Stormwater?
Stormwater is
precipitation from rain
or snow that does not
get absorbed into the
ground. It flows across
our yards, driveways,
and roads, and picks
up contaminants on
its way into storm
drains and ditches.
These drains and
ditches lead directly
into our waterways.
The contaminants in
stormwater are known as illicit discharge.
What is Illicit Discharge?
An illicit discharge is any contaminant that enters the city’s
storm sewer system. Illicit discharge includes things like pet
waste, fertilizer, yard waste, salt from winter de-icing, sewage,
pesticides and herbicides, sediment from construction sites,
gasoline or oil, commercial car wash wastewater, sewage, and
chlorinated pool water.
Is Illicit Discharge harmful?
The short answer: yes! Unlike water from our homes,
stormwater is not treated before it enters our lakes, rivers,
and streams. Illicit discharge negatively impacts aquatic life
and diminishes both the health and beauty of our waterways.
Fertilizers and yard waste contain phosphorus, which is a
key contributor to potentially toxic algal blooms. Pet waste
contributes to harmful bacteria, and chlorinated pool water
can be lethal to some aquatic species.
Can I help prevent illicit discharge?
There are many small actions you can take to help keep
contaminants out of our waterways. Clean up after your pet,
compost your yard waste, minimize your use of fertilizers or
switch to a phosphorus-free fertilizer, maintain your septic
tank, check your car for leaks, and throw away litter.
How can I recognize illicit discharge?
There are several possible indicators of illicit discharge:
unusual water color or cloudiness, strong pungent or musty
odor, scum or foam on the water surface, oil sheen, floating
debris, or dead fish.
What Should I do if I see Illicit Discharge?
Please call Kevin Lamson, the Street Operation Manager, at the
City of Otsego at 763.441.4414 and describe what, where, and
when you saw the illicit discharge.
Source: soundrivers.org/watershed-isues/
stormwater-runoff
Source: fmr.org/updates/water-legislative/how-heat-waves-fuel-toxic-
algae-blooms-minnesota-waters
Source: cityoftonkabay.net/?SEC=A904EFF5-5C5E-4B62-AFB8-
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