Idaho's Environmental Disaster

Just as a Superfund cleanup ended, the true extent of mining's legacy in northern Idaho is revealed -- 1,500 miles of the Coeur d'Alene River basin is contaminated.

1 minute read

July 17, 2000, 11:30 AM PDT

By Chris Steins @planetizen


In 1982, the Environmental Protection Agency declared 21 square miles around northern Idaho's old Bunker Hill lead smelter the nation's second-largest Superfund site. The EPA ha since spent $200 million digging up contaminated lawns, demolishing the smelter site and cleaning up the community. Just as the EPA was finishing its work, they discover that sediments contaminated with lead, cadmium, zinc and arsenic have spread far outside the original Superfund site. The contaminants have polluted up to 1,500 square miles of the Coeur d'Alene River basin, from the Montana border to the Columbia River in eastern Washington. The damage dwarfs previous cleanups attempted by the EPA. Adding insult to injury, the US Government is to blame for original mining pollution. Are there lessons here for California?

Thanks to Chris Steins

Monday, July 17, 2000 in The Los Angeles Times

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Close-up of "Apartment for rent" sign in red text on black background in front of blurred building

Trump Administration Could Effectively End Housing Voucher Program

Federal officials are eyeing major cuts to the Section 8 program that helps millions of low-income households pay rent.

April 21, 2025 - Housing Wire

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

April 23, 2025 - Diana Ionescu

Ken Jennings stands in front of Snohomish County Community Transit bus.

Ken Jennings Launches Transit Web Series

The Jeopardy champ wants you to ride public transit.

April 20, 2025 - Streetsblog USA

View of residential street in Los Angeles with palm trees and hazy city in distance.

Rebuilding Smarter: How LA County Is Guiding Fire-Ravaged Communities Toward Resilience

Los Angeles County is leading a coordinated effort to help fire-impacted communities rebuild with resilience by providing recovery resources, promoting fire-wise design, and aligning reconstruction with broader sustainability and climate goals.

April 27 - Los Angeles County Chief Sustainability Office

Entrance sign for San Jose-Santa Clara Regional wastewater treatment facility.

When Borders Blur: Regional Collaboration in Action

As regional challenges outgrow city boundaries, “When Borders Blur” explores how cross-jurisdictional collaboration can drive smarter, more resilient urban planning, sharing real-world lessons from thriving partnerships across North America.

April 27 - * A Placemaking Journal

Rendering of Penrose Roundabout in Philadelphia, Pennsylvania.

Philadelphia Is Expanding its Network of Roundabouts

Roundabouts are widely shown to decrease traffic speed, reduce congestion, and improve efficiency.

April 27 - WHYY