Good Samaritan Remediation of Abandoned Hardrock Mines Act of 2024 became law 461 days after introduction, with cosponsors split almost evenly between the parties

Good Samaritan Remediation of Abandoned Hardrock Mines Act of 2024 This act promotes the remediation of abandoned hardrock mine sites by Good Samaritans. A Good Samaritan is a person that (1) is not a past or current owner or operator of the abandoned site; (2) had no role in the creation of waste, such as acid mine drainage, at the site; and (3) is not potentially liable under any law for the remediation, treatment, or control of the mine waste.

(Sec. 4) The act requires the Environmental Protection Agency (EPA) to establish a Good Samaritan pilot program. Under the program, the EPA may issue up to 15 permits to allow Good Samaritans to remediate mine waste at abandoned hardrock mine sites to protect human health and the environment without being subject to enforcement or liability under specified environmental laws for past, present, or future releases, threats of releases, or discharges of hazardous substances or other contaminants at or from the abandoned mine site. The act applies to liability under the Clean Water Act and the Comprehensive Environmental Response, Compensation, and Liability Act (CERLA). The EPA may only grant permits for projects that meet certain requirements, including a demonstration that (1) the project poses a low risk to the environment; and (2) the Good Samaritan possesses, or has the ability to secure, the financial and other resources necessary to complete the permitted work and address any contingencies. The act terminates the program after seven years. However, the EPA may grant a permit after the program terminates if the application for the permit is (1) submitted at least 180 days before the termination date, and (2) completed before the program terminates. A Good Samaritan must make reasonable and diligent efforts to identify all responsible owners or operators of an abandoned hardrock mine site proposed to be remediated by the Good Samaritan. If the EPA determines that a responsible owner or operator exists for such site, then the EPA must deny the application for a Good Samaritan permit. The EPA may grant investigative sampling permits that authorize a Good Samaritan to determine (1) the concentrations, locations, and releases of any hazardous substances, pollutants, or contaminants at an abandoned hardrock mine site; and (2) whether the Good Samaritan is willing to perform further remediation and will proceed under a Good Samaritan permit. The act establishes a process to convert investigative sampling permits into Good Samaritan permits. A Good Samaritan permit may include a provision that a Good Samaritan may assert a claim of force majeure for any violation of the permit caused solely by (1) an act of God, (2) an act of war, (3) negligence on the part of the United States, (4) an act or omission of a third party under certain circumstances, or (5) a public health emergency. A Good Samaritan permit may be transferred only if the EPA determines that the transferee qualifies as a Good Samaritan and other conditions are met. Additionally, the act establishes requirements for the EPA to notify state, local, and tribal governments of applications for the remediation of abandoned hardrock mine sites. A Good Samaritan must notify all appropriate federal, state, tribal, and local entities of any unplanned or previously unknown release of mine waste caused by the actions of the Good Samaritan or any cooperating person in accordance with applicable laws. Good Samaritans must take actions required under their permits to ensure appropriate baseline conditions, monitoring during the remediation project, and post-remediation monitoring of the environment. Good Samaritans may reprocess materials recovered while remediating the site if (1) the project is on land owned by the United States, (2) the applicable federal land management agency approves, (3) the proceeds from the sale or use of the materials are used to defray remediation costs or to reimburse such agencies to the extent required by the permit, and (4) any remaining proceeds are deposited into the appropriate Good Samaritan Mine Remediation Fund. The act also outlines requirements for reviewing Good Samaritan permits under the National Environmental Policy Act of 1969. The act makes projects conducted under such permits eligible for funding under certain grant programs for state implementation plans under the Clean Water Act and brownfield revitalization funding under CERCLA.

(Sec. 5) In addition, the act establishes Good Samaritan Mine Remediation Funds for land management agencies that authorize Good Samaritans to conduct remediation projects on federal land.