S-2781-118
Became Public Law No: 118-155.
Sponsored by Martin Heinrich (D-NM)
What it does
This law creates a seven-year EPA pilot program that issues up to 15 permits allowing volunteer third parties — called "Good Samaritans" — to clean up abandoned hardrock mine sites without becoming legally liable under the Clean Water Act or CERCLA for contamination at those sites. Permits require applicants to show low environmental risk and sufficient financial resources, and the EPA must notify state, tribal, and local governments of all applications. The law also establishes dedicated funding accounts for cleanup work on federal land and requires the EPA to report on the program's effectiveness within eight years.
Who benefits
Volunteer cleanup organizations, environmental nonprofits, and private companies willing to remediate mine sites without liability risk; communities near abandoned hardrock mines who face contaminated water and soil; downstream water users including municipalities and agricultural operations drawing from affected watersheds; state, tribal, and local governments that currently bear cleanup costs; federal land management agencies overseeing contaminated public lands; and mining companies or other entities that could recover and sell residual materials to offset remediation costs.
Who is hurt
Existing responsible parties (past owners or operators) who may face increased pressure or scrutiny once Good Samaritan activity draws attention to a site; neighboring landowners or downstream communities who could be exposed to unplanned releases triggered by cleanup activity; state and tribal regulators who may have less direct control over cleanup standards than under existing frameworks; and taxpayers if the program's funding accounts prove insufficient to cover contingencies from cleanup work gone wrong.
Supporters argue
Supporters contend that tens of thousands of abandoned hardrock mine sites across the American West leach acid drainage and heavy metals into rivers and groundwater, yet sit untouched because any party that voluntarily begins cleanup risks being deemed a "responsible party" under CERCLA or the Clean Water Act — triggering unlimited liability for all contamination at the site. This legal trap has deterred nonprofits, local governments, and private actors from addressing pollution that harms drinking water, fisheries, and public health for decades. By granting targeted liability protection only to parties with no prior connection to the contamination, the law removes that deterrent while preserving accountability for actual polluters. The pilot structure, 15-permit cap, low-risk requirement, financial assurance mandate, and mandatory monitoring build in safeguards against making conditions worse, and the eight-year evaluation ensures Congress receives data before any broader expansion.
Opponents argue
Opponents contend that shielding any party from Clean Water Act and CERCLA liability — even well-intentioned volunteers — weakens the foundational "polluter pays" principle that has driven industrial cleanup accountability for decades. Critics argue that disturbing legacy mine waste carries genuine risk of mobilizing contaminants into waterways, and that a 15-permit pilot with a "low risk" standard determined by the same EPA issuing the permits provides insufficient independent oversight. Tribal nations and downstream communities may have limited ability to block permits for sites affecting their water supplies, despite notification requirements. Opponents also raise concern that allowing Good Samaritans to reprocess and sell recovered materials creates a financial incentive that could blur the line between genuine remediation and commercial resource extraction, potentially leaving sites in worse condition if profits fall short of cleanup costs.
Constitutional context
The law rests primarily on Congress's Commerce Clause authority (Art. I, §8), which underpins both CERCLA and the Clean Water Act. By modifying liability under those statutes, Congress is acting within its established power to set the terms of federal environmental law. The Tenth Amendment is relevant because the law requires EPA notification to state and tribal governments but does not commandeer state enforcement machinery, consistent with anti-commandeering doctrine (New York v. United States, Printz v. United States). Post-Loper Bright (2024), courts will independently review EPA's interpretations of permit eligibility criteria rather than deferring to the agency. Under West Virginia v. EPA (2022), the major questions doctrine could be invoked if EPA attempts to expand the program beyond the 15-permit statutory cap through rulemaking. The Takings Clause (5th Amendment) may be implicated if cleanup activity on private adjacent land or federal easements is later challenged under the expanded takings framework signaled in Sackett v. EPA (2023).
Checks and balances
The Executive Branch (EPA) gains new permitting authority and discretion to evaluate applications, set permit conditions, and manage the Good Samaritan Mine Remediation Funds. Congress retains control through the seven-year sunset, the hard cap of 15 permits, the mandatory eight-year evaluation report, and the requirement that any post-sunset permits be applied for at least 180 days before termination. Federal land management agencies (Interior, Agriculture) gain approval authority over material reprocessing on federal land. State, tribal, and local governments receive notification rights but not veto power, keeping primary authority with the federal executive. The judicial branch retains jurisdiction to review permit decisions, and post-Loper Bright, courts will independently assess whether EPA's permit interpretations align with the statute.
Historical precedent
The Brownfields Revitalization and Environmental Restoration Act of 2001 similarly addressed the "innocent landowner" liability trap under CERCLA to encourage voluntary cleanup of contaminated urban properties, and is directly referenced in this law as a funding source. Several western states (Colorado, Montana, Idaho) have enacted state-level Good Samaritan mine cleanup statutes that served as models for this federal approach.