Safe Splash? Lead, arsenic concerns prompt new testing at Lake Coeur d’Alene beaches

COEUR D’ALENE, Idaho — Idaho’s mining past is prompting a new beach safety study by the Idaho Department of Environmental Quality.

For the first time in more than two decades, a comprehensive study is underway testing more than 30 popular beaches along the Lake Coeur d’Alene and the Spokane River for harmful contaminants from decades of mining runoff.

While previous spot testing has indicated the beaches are safe, this new study—funded by Governor Brad Little’s office and recommended by a 2022 National Academies of Sciences report—aims to provide updated data on lead and arsenic levels that could affect public health, particularly for children.

“We’re most concerned from a human health standpoint lead and arsenic are the metals that tend to stay in higher concentrations than you would see in natural sediments, and we’re concerned mostly with kids getting exposed to those,” said Dan McCracken, Regional Administrator for the Idaho Department of Environmental Quality.

So. are the beaches safe for your family to play at this summer?

Natalie Grant is breaking down how this study was conducted and what results the experts are expecting.

Watch her special report Thursday on 4 News Now at 6.