Superfund cleanup is ongoing. Conditions change, milestones are reached, and new information becomes available.

This page highlights recent updates and explains why they matter, with links to more detailed information when helpful.

How to use this page

Updates are listed from newest to oldest.

You can:

  • skim headlines for awareness
  • read summaries for context
  • follow links to learn more about specific areas or topics

If you're new here, you may want to start with Start Here before diving into updates.

Five-Year Review Completed for Portions of the Site

August 2021

The EPA completed a Five-Year Review evaluating whether cleanup actions across several Operable Units remain protective of human health and the environment.

The review examined water management systems, residential soil remedies, and long-term monitoring programs.

Why this matters: Five-Year Reviews are a key checkpoint for long-term protection. Findings can lead to adjustments or improvements in cleanup systems.

Five-Year Reviews: What They Mean →

Stormwater Pond Construction Underway

Ongoing

Construction has begun on additional stormwater ponds designed to capture and treat runoff before it enters Silver Bow Creek.

Temporary road changes and construction activity may occur near the work areas.

Why this matters: Stormwater management helps protect waterways and supports long-term recovery, while also creating new green space.

Stormwater and Urban Runoff →

West Side Soils Investigation Continues

Ongoing

Sampling and monitoring activities are ongoing as part of the West Side Soils remedial investigation, including evaluation of soils, groundwater, and Blacktail Creek.

Why this matters: Investigation data help guide future cleanup decisions and ensure risks are understood before action is taken.

West Side Soils →

Greenway Trail Segments Continue to Open

Ongoing

Additional segments of the Silver Bow Creek Greenway Trail have been completed, extending the network of walking and biking paths along the restored creek corridor.

Why this matters: The Greenway demonstrates how cleanup enables community amenities and ecological recovery.

Silver Bow Creek Greenway Trail →

What you won't see here

This page does not include:

  • rumors or speculation
  • technical reports without explanation
  • unverified information

When updates are shared, they are linked to context and background so readers can understand what they mean.

How often is this page updated?

Updates are added when:

  • significant milestones occur
  • new investigations begin or conclude
  • public participation opportunities arise
  • conditions change in ways that affect the community

Not all activity requires an update — this page focuses on what's most relevant to residents.

Staying informed

If you want to stay informed:

  • check this page periodically
  • attend public meetings
  • explore deeper pages for context

If you have questions about an update, CTEC can help explain what it means.

Public Meetings and Comment Periods →

About CTEC →