
Illinois is home to an abundance of water resources, with over 119,000 miles of streams, 900 miles of large rivers, and more than 91,000 freshwater lakes and ponds. However, two of America's most polluted rivers run through Illinois, including the Grand Calumet, where 90% of its flow consists of industrial and municipal waste. The Illinois River is also impacted by urban storm water pollution, with runoff from streets, roofs, and other surfaces carrying pollutants into the river. Additionally, Illinois faces challenges with nutrient pollution, invasive species, and agricultural runoff, threatening the health of its rivers and the diverse ecosystems they support.
| Characteristics | Values |
|---|---|
| Rivers in Illinois with high levels of pollution | Grand Calumet River, Chicago Ship Canal, Des Plaines River, Vermilion River |
| Common sources of pollution | Industrial and municipal waste, agricultural runoff, invasive species, coal ash, urban storm water |
| Impact of pollution | Loss of biodiversity, harmful drinking water, economic harm |
| Efforts to reduce pollution | Clean Water Act, Total Maximum Daily Load (TMDL), National Pollutant Discharge Elimination System (NPDES), Illinois Nutrient Loss Reduction Strategy (NLRS) |
| Organizations working to protect water resources | Illinois Environmental Council (IEC), Prairie Rivers Network, Earthjustice, Illinois Environmental Protection Agency (IEPA), Illinois Department of Agriculture (IDOA) |
Explore related products
What You'll Learn

The Illinois River's pollution sources
Illinois has an abundance of water resources, with over 119,000 miles of streams, 900 miles of large rivers, and more than 91,000 freshwater lakes and ponds. However, two of America's most polluted rivers run through Illinois, one of which is the Illinois River.
Point Source Pollution
Point source pollution refers to pollution that comes from a single source, such as a paper mill or a factory. This type of pollution is often easier to address because it can be traced back to the specific polluter. An example of point source pollution in the Illinois River is water coming out of a pipe from a factory or sewage treatment plant.
Non-Point Source Pollution
Non-point source pollution, on the other hand, comes from multiple sources and is more challenging to address. This includes pollution that washes off the land during rainstorms, such as pesticides, fertilizers, and pet waste, which can all contribute to the pollution of the Illinois River.
Industrial and Municipal Waste
The Grand Calumet River, another polluted river in Illinois, has been reported to consist of up to 90% industrial and municipal waste. While this does not refer to garbage or sludge, it means water that has already been used and treated at a waste treatment plant before being sent to the river.
Coal Ash
Illinois's designated scenic river, the Vermilion River, has been contaminated with coal ash from the Vistra energy company's Vermilion Power Plant in Oakwood. This has resulted in toxic metals seeping into the waterway, causing purple and orange pollution that has negatively impacted the river as a destination for canoeing and kayaking.
Nutrient Pollution
Nutrient pollution occurs when highly soluble nitrates and phosphates, commonly used in fertilizers and industry, pass into water systems during rainfall. This type of pollution causes algae blooms, which block sunlight and deplete oxygen levels in the water, leading to the death of aquatic plants and animals. Illinois is a significant contributor to the "dead zone" in the Gulf of Mexico due to nutrient pollution.
Microbeads
Personal care products containing microbeads, such as facial scrubs and toothpaste, have also contributed to the pollution of Illinois's water systems. These tiny plastic particles escape treatment by sewage plants and are discharged into rivers, lakes, and oceans. Microbeads absorb toxic chemicals, which can then be ingested by fish and wildlife.
The Sea of Cortez: A Polluted Paradise
You may want to see also
Explore related products

The impact of human activity on the river
Illinois is home to an abundance of water resources, with over 119,000 miles of streams, 900 miles of large rivers, and more than 91,000 freshwater lakes and ponds. However, human activity has had a detrimental impact on the health of these waterways, particularly the Illinois River.
One of the main ways human activity has affected the Illinois River is through agricultural practices. In Illinois, about 75% of the state's land is devoted to agriculture. The use of pesticides, fertilizers, and other chemicals in agriculture can contaminate waterways during rainstorms when these substances are washed into the storm drainage system, which feeds into the Illinois River. This type of pollution is known as nonpoint source pollution because it comes from multiple sources and cannot be traced back to a single point. Excessive levels of nitrogen and phosphorus in the Illinois River can cause excessive algae growth, lower oxygen levels, and endanger aquatic life. Additionally, agricultural runoff can introduce invasive species into the river, disrupting the natural ecosystem and causing economic harm.
Urban and suburban development have also impacted the Illinois River. Changes to the landscape, such as drainage systems, diverted rivers, and dams, have altered the timing, volume, and direction of water flows. Pollution from urban areas, including sediment, oil, and other automotive fluids, as well as household chemicals, can also find its way into the river through stormwater runoff.
Industrial activities have contributed to point source pollution, where polluted water comes from a single source, such as a pipe from a factory or sewage treatment plant. While regulations exist to control point source pollution, nonpoint source pollution from agricultural and urban runoff remains a significant challenge.
The impact of human activity on the Illinois River highlights the complex interplay between economic development, environmental protection, and public health. Addressing these issues requires a comprehensive approach that balances the needs of various sectors while prioritizing the health and sustainability of Illinois's valuable water resources.
The Sky's Orange Hue: Why?
You may want to see also
Explore related products

Regulatory failures and successes
The Illinois River is one of the most polluted rivers in the United States, with 90% of the Grand Calumet river's flow consisting of industrial and municipal waste. The Clean Water Act has helped reduce pollution from discrete sources, such as industrial pollution, but there are still many issues with non-point source pollution, such as agricultural runoff, which is not regulated.
One example of regulatory failure is the contamination of the Vermilion River, Illinois' only designated scenic river, with coal ash from the Vistra energy company. Despite lawsuits filed by nonprofits and a citation from the Illinois EPA for violating the Clean Water Act, Vistra has not been held accountable due to a ruling that the Act only applies to surface water, not groundwater.
Another issue is nutrient pollution, which occurs when soluble nitrates and phosphates from fertilizers and industry pass into water systems, causing algae blooms that block sunlight and deplete oxygen levels, killing aquatic life. Illinois is the top contributor of nitrogen and phosphorus to the "dead zone" in the Gulf of Mexico. While there are efforts to address this, such as the Illinois Environmental Council's work to remove lead from drinking water and improve water infrastructure, more needs to be done to enforce regulations and increase public access to pollution data.
Point source pollution, such as from paper mills or sewage treatment plants, is easier to address as it can be traced to a single polluter. However, non-point source pollution, like farmland runoff, is more challenging and often requires changes in land use practices and drainage systems to mitigate.
There have been some successes in improving water quality in Illinois. For example, the Chicago Ship Canal and Des Plaines River are in much better shape than they were 20 years ago, demonstrating that progress is possible. Additionally, volunteer organizations like the Oklahoma Blue Thumb Program work to monitor local waterways and educate the public about water quality issues, and provide solutions such as the Illinois Environmental Council's work on nutrient pollution, which is a step in the right direction.
How Does Ebola Spread: Rivers or Human Contact?
You may want to see also
Explore related products

The river's health and biodiversity
Illinois has an abundance of water resources, with over 119,000 miles of streams, 900 miles of large rivers, more than 91,000 freshwater lakes and ponds, and jurisdiction over more than 1,500 square miles of open water in Lake Michigan. However, the state's rivers, particularly the Illinois River, face significant pollution challenges that threaten their health and biodiversity.
The Illinois River and its surrounding ecosystems once teemed with life, including fish, birds, and large mammals, and humans have lived along and utilised these rivers for millennia. However, human activities have had a detrimental impact on the river's health and biodiversity. One of the main sources of pollution in the Illinois River is urban storm water pollution. During rainstorms or snowmelt, water washes over roofs, streets, driveways, and yards, picking up pollutants and sediment that are then washed into the river via neighbourhood creeks. This type of pollution, known as nonpoint source pollution, is challenging to address as it comes from multiple sources and cannot be traced back to a single point.
Another significant contributor to the Illinois River's pollution is agricultural runoff. Illinois has a large agricultural sector, with about 75% of its land devoted to agriculture. Excessive use of fertilisers and pesticides in agriculture can lead to nutrient pollution, causing "algae blooms" that block sunlight, deplete oxygen levels in the water, and endanger aquatic life. Additionally, invasive species, often introduced through human activities, compete with native species for resources, further reducing biodiversity and disrupting the ecosystem.
The Clean Water Act has helped reduce pollution from industrial sources, but agricultural runoff remains largely unregulated and continues to be a significant problem. The Illinois Environmental Protection Agency (IEPA) and Illinois Department of Agriculture (IDOA) have been criticised for their failure to address the state's water pollution crisis and protect the health and biodiversity of the Illinois River.
Despite these challenges, there are efforts to improve the health and biodiversity of the Illinois River. Organisations like the Prairie Rivers Network work to protect water resources, restore rivers, and inspire change. They advocate for honest reporting of water pollution levels and accountability for polluters, and they collaborate with other nonprofits to hold energy companies accountable for toxic waste seeping into waterways. Additionally, volunteers from organisations like 4-H remind people to protect neighbourhood springs and creeks that drain into the Illinois River. These collective efforts aim to restore and preserve the river's health and biodiversity for the benefit of both the environment and the communities that depend on it.
The Devastating Impact of Ocean Pollution on Sea Mammals
You may want to see also
Explore related products

Efforts to restore the river
The Illinois River is contaminated with coal ash, industrial and municipal waste, and nutrient pollution. The Prairie Rivers Network, a non-profit organisation, has been working to heal the rivers and restore their ecosystems. They have conducted testing and filed lawsuits to hold companies accountable for toxic waste seeping into the waterways.
The Clean Water Act has helped reduce pollution from industrial sources, but agricultural runoff remains an issue. To address this, the Illinois Environmental Council (IEC) is committed to protecting clean water by working on several fronts: addressing nutrient pollution, removing lead from drinking water, and improving water infrastructure. They also advocate for changes to Illinois laws and regulations to increase enforcement against illegal polluters and improve access to pollution data for citizens.
In addition, the Friends of the Chicago River group has been advocating for improved water quality standards and the disinfection of wastewater treatment plant effluent. Their efforts led to the implementation of wastewater disinfection technologies at two treatment plants serving the Chicago River.
Another issue facing Illinois' rivers is the presence of invasive species, such as Asian carp, which disrupt the native ecosystem and cause economic harm. Human activity is often the source of these invasive species, and it is essential to prevent their spread and protect the biodiversity of the rivers.
Overall, there are ongoing efforts by non-profit organisations, government agencies, and advocacy groups to restore and protect the Illinois River and its surrounding ecosystems. These initiatives aim to reduce pollution, improve water quality, and preserve the natural habitats that depend on these waterways.
Alarming Rise of Ocean Pollution: A Global Concern
You may want to see also
Frequently asked questions
The Illinois River is fed by creeks and streams that flow through larger towns and agricultural areas.
The Illinois River is affected by both point source pollution and non-point source pollution. Point source pollution comes from municipal and industrial wastewater treatment plants, as well as factories and sewage treatment plants. Non-point source pollution comes from agricultural runoff, which includes pesticides, fertilizers, and sediment. The Illinois River is also affected by urban stormwater pollution, which includes pollutants from roofs, streets, driveways, and yards that are washed into the river during rainstorms or snow melts.
Efforts are being made to reduce pollution in the Illinois River. The Clean Water Act helped reduce pollution from discrete sources, and organizations like the Prairie Rivers Network are working to protect and restore rivers in Illinois. However, there are still challenges, such as the powerful agriculture industry and the lack of progress in reducing nutrient pollution.











































