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Also: Lake St. Clair
  Wet Weather Pollution
of the Great Lakes Region

Storm Water, Combined Sewer Overflow and Sanitary Sewer Overflow
 
What's New | Overview | General Resources | Related Resources

 
What's New
COMMENTARY: Preparing for a wetter future in the Great Lakes region
Milwaukee Journal Sentinel (7/24)
The area around Ashland, Wis., is expected to see a significant increase in rainfall due to climate change, requiring a new approach in how bridges and culverts will be designed in the area.

3-mile long Euclid Creek Tunnel completed; will prevent sewage from flowing into Lake Erie
The Plain Dealer (9/17)
The Northeast Ohio Regional Sewer District announced the completion of the more than three-mile long Euclid Creek Tunnel, the first in a series of storage tunnels constructed to drastically reduce the amount of combined sewage entering local waterways.

Manure runoff debated: Farmers urge Ohio House to employ sound science
The Toledo Blade (1/30)
A rare Ohio legislative algae hearing on a large farming operation drew a standing-room-only crowd of about 80 people; the committee took testimony from a dozen or so witnesses with ties to the state’s farming industry.

Scientists to study algal blooms in Sandusky Bay
The Sandusky Register (1/29)
Bowling Green State University announced Thursday that it will carry out a $250,000 study of algal blooms in Sandusky Bay that's aimed at helping Sandusky protect its water supply.

Western Lake Erie gets $19M to trim algae-forming runoff
The Toledo Blade (1/15)
The western Lake Erie region is getting more than $19 million in federal grant money to help farmers reduce algae-forming runoff in northwest Ohio, northeast Indiana, and southeast Michigan.

Report slams operation of Toledo public utilities: Lax accounting, safety cited
The Toledo Blade (1/14)
Five months after Toledo shut down the drinking-water supply of 500,000 area residents because of toxic algae in Lake Erie, a consulting firm has produced a scathing report blasting the city’s public utilities department.

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Overview
Wet weather pollution includes stormwater runoff and combined sewer overflows. Stormwater runoff is the excess water that flows over land during and after a rainfall, which can cause flooding, erosion and pollution problems. Pollutants like coliform bacteria, heavy metals, nutrients, oil and grease, organic priority pollutants and suspended solids enter rivers and lakes during storms. Combined sewer overflows are structural devices on combined sewer systems that divert untreated sewage mixed with stormwater to tributary rivers or directly into the Great Lakes. Pollution from these sources degrades the water quality of these rivers and lakes.
 
References: Rouge River National Wet Weather Demonstration Project
Programs in the Great Lakes, U.S. Geological Survey

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General Resources
GLRI Beach Sanitary Survey Projects
U.S. Environmental Protection Agency (EPA), Great Lakes National Program Office (GLNPO)
Multiple projects were funded by GLRI to assess sources of contamination affecting hundreds of Great Lakes beaches. Several of the projects also involve mitigating the contamination sources, including waterfowl management, replacing impervious pavement with permeable materials, and managing wet weather through green infrastructure approaches such as green roofs and rain gardens. EPA is monitoring the progress of these projects, and housing data collected with the sanitary surveys.

Programs in the Great Lakes
U.S. Geological Survey (USGS)
The USGS leads investigations that characterize storm-related water quantity and quality from selected CSO's, thus allowing the USGS to make better estimates of annual pollutant loads from CSO's to the Great Lakes.

Rouge River National Wet Weather Demonstration Project
The Rouge Project recognizes the importance of addressing wet weather pollution problems in the river and developing a cost-effective watershed wide approach to deal with them.

SWMM: Storm Water Management Model
U.S. Environmental Protection Agency (EPA)
SWMM is a large, complex model capable of simulating the movement of precipitation and pollutants from the ground surface through pipe and channel networks, storage treatment units and finally to receiving waters.

Water, Sewer and Stormwater Utility's Guide to Financial and Technical Assistance Programs, Pennsylvania Infrastructure Investment Authority
Pennsylvania Department of Environmental Protection
This guide lists state and federal agencies and private groups ready to provide financial and technical assistance to support the development and rehabilitation of wastewater, drinking water and stormwater systems.

Wet Weather Discharges
U.S. Enviromental Protection Agency (EPA)
The NPDES Support and Technical Assistance Branch provides regulatory and technical assistance to states and the regulated community in fulfilling their commitments under the NPDES program for wet weather discharges due to storm water, combined sewer overflow and sanitary sewer ovewflow.

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Related Resources
GLIN: Toxic Contamination in the Great Lakes Region
GLIN: Water Quality in the Great Lakes Region

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Updated: December 13, 2017
Selected Photos: Copyright ©John and Ann Mahan
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