Colorado Fishing Alert: PFAS Contamination Found in Popular Lakes – What You Need to Know

2025-06-01
Colorado Fishing Alert: PFAS Contamination Found in Popular Lakes – What You Need to Know
CBS Colorado

Colorado health officials are urging residents and visitors to exercise caution when consuming fish caught from several popular lakes across the state. Recent testing has revealed elevated levels of PFAS, often referred to as 'forever chemicals,' in fish populations. This advisory, jointly issued by the Colorado Department of Public Health and Environment (CDPHE) and Colorado Parks and Wildlife (CPW), aims to protect public health while ensuring the continued enjoyment of Colorado's recreational fishing opportunities.

What are PFAS and Why are They a Concern?

PFAS (per- and polyfluoroalkyl substances) are a group of man-made chemicals that don't break down easily in the environment, hence the nickname 'forever chemicals.' They've been used in a wide range of products, including non-stick cookware, firefighting foam, and food packaging. Because they persist, PFAS can accumulate in the environment and in living organisms, including fish. Exposure to PFAS has been linked to various health concerns, including immune system effects, liver damage, and increased risk of certain cancers.

Which Lakes are Affected?

While the specific lakes affected are being continuously monitored and updated, initial testing has flagged several popular fishing destinations. The CDPHE and CPW are actively working to identify all affected water bodies and will publish a regularly updated list on their websites. Anglers are advised to check these resources before heading out to fish. (Links to the official websites will be provided at the end of this article.)

What are the Recommendations?

The advisory recommends limiting fish consumption from affected lakes. Specifically, the guidance suggests reducing the frequency and quantity of locally caught fish consumed. The level of restriction varies depending on the species of fish and the lake. Larger, predatory fish, like walleye and pike, tend to accumulate higher concentrations of PFAS than smaller fish. Pregnant women, nursing mothers, and young children are considered particularly vulnerable and should be extra cautious.

Why is this Happening?

The presence of PFAS in Colorado’s lakes is likely due to a combination of factors, including historical use of PFAS-containing products and industrial runoff. The long lifespan of these chemicals means they can persist in the environment for decades, making remediation a significant challenge.

What's Being Done?

The CDPHE and CPW are committed to addressing this issue. They are conducting ongoing testing to identify the extent of PFAS contamination in Colorado's waters. They are also working with federal and state partners to develop strategies for reducing PFAS pollution and mitigating its impact on human health and the environment. Public awareness campaigns, like this advisory, are crucial for informing anglers and protecting public health.

Resources and Further Information:

  • Colorado Department of Public Health and Environment (CDPHE): [Insert CDPHE PFAS webpage link here]
  • Colorado Parks and Wildlife (CPW): [Insert CPW PFAS webpage link here]

This advisory is a precautionary measure to protect public health. By following these recommendations, anglers can continue to enjoy Colorado's beautiful lakes and rivers while minimizing potential risks associated with PFAS exposure. Stay informed and fish responsibly!

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