Greta Jimenez
Idaho is known for its abundant and diverse water resources, including pristine mountain lakes and powerful rivers that wind through the state. However, the state's water sources face significant challenges due to agricultural practices, mining operations, and natural geological factors. A recent report by the Idaho Department of Environmental Quality (DEQ) revealed that a concerning percentage of the state's rivers and lakes are polluted, threatening aquatic species and potentially impacting recreational activities. This raises the question: Is the watershed in northern Idaho polluted?
| Characteristics | Values |
|---|---|
| Contaminants | Lead, heavy metals, selenium, arsenic, mercury, bacteria, sediment |
| Causes of Contamination | Mining activities, agricultural practices, natural geological factors, industrial waste, wastewater treatment plants |
| Affected Water Bodies | Coeur d'Alene Lake, St. Joe River, Snake River, Salmon River, Clearwater River, Lake Pend Oreille, Priest Lake |
| Efforts to Improve Water Quality | Watershed Advisory Groups (WAGs), Total Maximum Daily Loads (TMDLs), Clean Water Act, Idaho Conservation League |
| Current Status | 48% of rivers and streams, 10% of lakes and reservoirs are clean and healthy |
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What You'll Learn
- Mining operations and agricultural practices have polluted the watershed
- The Coeur d'Alene Lake and River are contaminated with heavy metals
- The Clean Water Act requires states to report on water quality every two years
- The Idaho Conservation League advocates for clean water in Idaho's rivers and lakes
- Watershed Advisory Groups provide input on water quality improvement plans
Mining operations and agricultural practices have polluted the watershed
Idaho's water sources are affected by both human and natural activities. Mining operations and agricultural practices have polluted the watershed in northern Idaho. The Coeur d'Alene River watershed and downstream into the Spokane River have a long history of mining and widespread metal contamination. This has resulted in the area being designated as a Superfund site, with ongoing remedial actions being implemented. Similarly, phosphate mining in southeastern Idaho has resulted in elevated selenium levels in nearby water sources, posing risks to both humans and wildlife.
Agricultural runoff, a significant issue in the Snake River Plain, a major agricultural area in Idaho, is another contributor to water pollution. Intensive farming practices lead to increased levels of nitrates, phosphorus, and pesticides in the water supply. Excess nitrates are particularly dangerous to infants, as they can cause methemoglobinemia or "blue baby syndrome." The loss of riparian zones, or the lush vegetation alongside waterways, also poses a threat to the watershed as a whole.
To address these issues, efforts are being made to implement best management practices (BMPs) among farmers to reduce agricultural runoff. The CORE-4, a collection of four Best Management Practices, aims to improve farm profitability while addressing environmental concerns through buffers, conservation tillage, crop nutrient management, and weed and pest management. In the case of mining operations, new technologies and practices are being introduced to prevent further pollution and restore affected areas.
The state of Idaho, the EPA, and the U.S. Forest Service are working together to address the pollution caused by mining operations. The Coeur d'Alene Lake Management Plan was adopted in 2009 to reduce nutrient inflow and maintain high oxygen levels in the water. Additionally, Idaho Gov. Brad Little has allocated millions of dollars in funds to improve the lake's health and reduce phosphorus levels. These efforts demonstrate a commitment to mitigating the impacts of mining operations and agricultural practices on the watershed in northern Idaho.
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The Coeur d'Alene Lake and River are contaminated with heavy metals
Idaho is known for its abundant and diverse water resources, including pristine mountain lakes and rivers that wind through the state. However, the picturesque Coeur d'Alene Lake and its namesake river are facing significant challenges due to historical mining activities and natural geological factors.
The extent of the contamination is alarming. Approximately 75 million metric tons of contaminated sediment line most of the lakebed, posing a severe threat to the health of the lake and the surrounding ecosystem. The pollution has also impacted the watershed, which is currently the focus of a massive cleanup effort led by the Environmental Protection Agency (EPA). While cleanup efforts have made significant progress in reducing contamination, residents, especially those using private wells or engaging in recreational activities in affected areas, should remain vigilant and aware of potential risks.
The Coeur d'Alene Tribe, whose reservation encompasses a portion of the lake, plays a crucial role in protecting the health of the lake and its surrounding watershed. However, the tribe faces challenges due to a lack of direct power to limit pollution. Instead, policies and actions to mitigate pollution are largely left to local governments and public education initiatives. The Idaho Department of Environmental Quality (IDEQ) is also actively involved in monitoring and remediation efforts, working alongside mining companies to address the issues caused by historical mining activities.
The situation facing Coeur d'Alene Lake and River is not an isolated incident in Idaho. The state's water sources, including other lakes and rivers, face similar challenges from agricultural runoff, mining operations, and natural geological formations introducing contaminants. Watershed Advisory Groups (WAGs), comprised of dedicated citizens, play an essential role in providing input and guidance to the IDEQ during the development of water quality improvement plans. These groups advocate for high water quality standards and closely monitor water quality permits to safeguard Idaho's precious water resources.
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The Clean Water Act requires states to report on water quality every two years
The Clean Water Act (CWA) was established to regulate the discharge of pollutants into US waters and set quality standards for surface waters. The CWA requires states to report on water quality every two years. This includes monitoring, assessing, and restoring the chemical, physical, and biological integrity of water bodies. The Environmental Protection Agency (EPA) and states are tasked with listing and addressing impaired water bodies.
In Idaho, the state's diverse water resources face complex quality challenges due to agricultural practices, mining activities, and natural geological factors. Historical mining activities in northern Idaho, specifically in the Coeur d’Alene Basin, have left a legacy of heavy metal contamination, including lead, arsenic, and mercury. While cleanup efforts have reduced contamination, residents, particularly those using private wells or engaging in recreational activities, should remain cautious.
The Coeur d’Alene Lake, a popular tourist destination, has been impacted by upstream mining pollution, resulting in contaminated sediment lining its lakebed. The Environmental Protection Agency is leading a massive cleanup of the watershed, while the state of Idaho and the Coeur d’Alene Tribe are responsible for protecting the lake's health. Nutrient inflows into the lake come from various sources, including agricultural runoff, wastewater treatment plants, stormwater, and lawn fertilizer.
To address water quality issues, the Idaho Department of Environmental Quality (DEQ) collects and evaluates water quality data for its biennial "integrated report." However, Idaho faces challenges, with only about half of its rivers and streams and 10% of its lakes and reservoirs meeting clean water standards. The Idaho Conservation League advocates for clean water and pushes for higher water quality standards.
The Clean Water Act provides tools to tackle water pollution, but strengthening the Act and addressing emerging threats, such as climate change, may be necessary to meet long-standing goals. The EPA also funds projects to protect watersheds and reduce pollutants, but stronger actions and support from Congress are needed to effectively manage nonpoint source pollution.
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The Idaho Conservation League advocates for clean water in Idaho's rivers and lakes
Idaho is known for its abundant and diverse water resources, including pristine mountain lakes and mighty rivers that wind through the state. However, the state's water sources face significant challenges due to agricultural practices, mining activities, and natural geological factors. The Idaho Conservation League (ICL) is a pivotal organisation that advocates for clean water in Idaho's rivers and lakes.
The ICL was founded to be a strong voice for clean water in Idaho's waterways, and it devotes a significant portion of its funding to this cause. The organisation closely reviews water quality permits and advocates for high standards in state and federal rule-making processes. They also monitor groundwater, wastewater treatment plants, and toxic algae blooms to keep the public informed about water quality threats. The ICL has been instrumental in reducing mercury discharge from gold mines in Nevada, which has had a positive impact on Idaho's lakes and streams.
In North Idaho, the ICL has worked to address residual mining pollution in Lake Coeur d'Alene, an area with a history of heavy metal contamination. The ICL has also been active in East Idaho, collaborating with Monsanto, a phosphate mining company, to push for stricter mercury regulations. Additionally, the ICL is currently appealing a decision by the Forest Service to allow mining exploration near the headwaters of the Boise River.
The Snake River, nicknamed "Idaho's sewer system," exemplifies the state's water quality issues. It is now unsafe for swimming or fishing in some areas due to pollution discharge and over-allocation of water resources. The ICL has a major campaign to restore the Snake River across southern Idaho, recognising its importance as a drinking water source for over 300,000 Idahoans.
The ICL believes in balancing economic development and resource protection to safeguard the health of Idaho's families and water sources. They support renewable energy sources like wind and solar while advocating for new projects to be located on lands already converted for human use, protecting intact wilderness areas and wildlife habitats.
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Watershed Advisory Groups provide input on water quality improvement plans
Idaho is known for its abundant and diverse water resources, including pristine mountain lakes and powerful rivers that wind through the state. However, the state's water sources face significant challenges due to agricultural practices, mining activities, and natural geological factors. A recent report by the Idaho Department of Environmental Quality (DEQ) revealed that a concerning percentage of the state's rivers and lakes are polluted, threatening aquatic species and rendering them unsafe for recreational activities.
To address these issues, Watershed Advisory Groups (WAGs) play a crucial role in providing local public input and guidance to the DEQ during the development and implementation of water quality improvement plans. WAGs are composed of interested citizens who collaborate with the DEQ to create and execute Total Maximum Daily Loads (TMDLs), which aim to reduce pollutant levels in impaired water bodies. For instance, the Boise-Mores Creek WAG was formed in 2006, and their efforts resulted in an approved plan by the EPA in 2010. The Kootenai Bay Watershed Advisory Group (WAG) is another example, comprising citizens dedicated to improving and protecting water quality in Kootenai Bay and Lake Pend Oreille.
WAGs foster community ownership of waterbodies and encourage local interest and action. They actively recruit members from diverse backgrounds to leverage their unique skills and perspectives. These groups often develop smaller subgroups to focus on different aspects of a Watershed Management Plan, ensuring that the larger watershed community is actively engaged in the project. The advisory council, typically consisting of 5 to 12 members, represents key stakeholder groups and leads the local planning process, including drafting the Watershed Management Plan.
The technical advisory team, composed of subject matter experts, works closely with the watershed advisory council. They provide technical information on local watershed conditions and assess the feasibility and effectiveness of potential solutions. Social scientific research methods are employed to understand the community's response to the waterbody, their knowledge of water quality issues, and their support for the project.
WAGs are vital in improving water quality in Idaho's watersheds by involving the community and stakeholders in creating comprehensive, long-term plans. Their efforts, combined with ongoing cleanup initiatives, are essential steps towards protecting and restoring the state's valuable water resources.
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Frequently asked questions
Yes, the watershed in northern Idaho is polluted. Mining operations, agricultural activities, and natural geological factors have all contributed to the pollution.
The sources of pollution in the watershed include mining activities, which have left a legacy of heavy metal contamination, including lead, arsenic, and mercury in soils and water bodies; and agricultural activities, which have elevated nitrate levels in groundwater due to the use of fertilizers and improper management of animal waste.
Yes, there are ongoing efforts to improve the water quality in the watershed. The Idaho Department of Environmental Quality (DEQ) works to monitor, assess, and restore the water quality in the state's water bodies. Watershed Advisory Groups (WAGs) provide local public input and guidance to the DEQ during the development of water quality improvement plans. Cleanup efforts have also been undertaken to reduce contamination levels.
The health risks associated with the pollution in the watershed include potential exposure to heavy metals such as lead, arsenic, and mercury, which can be dangerous to both humans and wildlife. Excess nitrates in groundwater can cause methemoglobinemia, also known as "blue baby syndrome," especially in infants.
While specific data on water quality varies across sources, it appears that a significant percentage of Idaho's water sources are polluted. According to one source, only 48% of rivers and streams and 10% of lakes and reservoirs are considered clean and healthy. However, some mountain lakes, such as Lake Pend Oreille, are renowned for their pristine condition and are major sources of tourism.
