Learn the Issues

Redevelopment

The Colorado Smelter site is part of EPA’s Superfund Redevelopment Initiative, which provides reuse assessment tools to collect and evaluate information to develop assumptions about reasonably anticipated future land use(s).

What Are the Risks at the Site?

Both lead and arsenic have been detected at elevated levels in residential yards around the Colorado Smelter site. High levels of lead in dust have been identified inside homes within the study area.

Lessons Learned from Prior Oversight Related to the EPA’s Rulemaking

We identified five lessons from these prior reports and categorized them into three programmatic themes: procedures, recordkeeping, and transparency.

7. What if I need to change or amend an initial or annual production report that I have already submitted?

For reports that have previously been submitted electronically and accepted by EPA, please use the link to access our How-to Guide to amend EPA Form 3540-16 . For reports that have previously been submitted by mail , download, fill and resubmit by mail EPA Form 3540-16 Pesticide Report for Pesticide-Producing…

Last published: April 28, 2026

Audit of Compliance with the Clean Water and Drinking Water State Revolving Fund Financial Statement Audit Requirements

New York Sewer Backup Administrative Order

NY sewer backup administrative

Navy Pier Flyover Radiological Surface Gamma Survey

Site Progress

Learn about the current site status and current activites at the Colorado Smelter Superfund Site in Pueblo, Colorado

Documents on Restoring Muskegon Lake AOC

documents of the actions taken to remove the beneficial use impairments in the Muskegon Lake Area of Concern, starting with the remedial action plan and buis removal.

Documents on Restoring the St. Clair River AOC

documents of projects and other actions that work towards restoring the St. Clair River AOC and removing BUIs.

Documents on Restoring the Deer Lake AOC

documents of the actions taken to remove the beneficial use impairments in deer Lake AOC, starting with the remedial action plan and buis removal.

Documents on Restoring Saginaw River and Bay AOC

Documents of the actions taken to remove the beneficial use impairments in Saginaw River and Bay Area of Concern, starting with the remedial action plan and buis removal.

Cove Area Mines: Assessments and Reports

This factsheet contains assessments and reports concerning planned construction activities to mitigate surface erosion at the former transfer area located in the Cove/Red Valley Chapter of the Navajo Nation in eastern Arizona.

Wetland Program Development Grants and EPA Wetlands Grant Coordinators

WPDG, wetlands program development grants, Regional RFP for grants

Training Centers for Onsite Wastewater Treatment

Onsite wastewater training centers offer classes, demonstration projects and research facilities for onsite industry professionals. Classes include wastewater management, new technologies and pre-licensing.

State Implementation Plans (SIP): Submissions that EPA has Found Adequate or Inadequate

EPA/OTAQ’s State and Local Transportation Resources are for air quality and transportation government and community leaders. Information on state implementation plans (SIPs) that EPA has found either adequate or inadequate is provided here.

Watershed Academy Webcast: Case Studies on Implementing Low-Cost Modifications to Improve Nutrient Reduction at Wastewater Treatment Plants

Webcast flyer on EPA’s recently released draft report on "Case Studies on Implementing Low-Cost Modifications to Improve Nutrient Reduction at Wastewater Treatment Plants".