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95 <br /> (1) Remediation methods and technologies that result in emissions of air <br /> pollutants shall comply with applicable air quality standards adopted by the <br /> Commission. <br /> (2) The site-specific remediation standard for surface waters shall be the water <br /> quality standards adopted by the Commission. <br /> (3) The current and probable future use of groundwater shall be identified and <br /> protected. Site-specific sources of contaminants and potential receptors shall <br /> be identified. Potential receptors must be protected, controlled, or eliminated <br /> whether the receptors are located on or off the site where the source of <br /> contamination is located. Natural environmental conditions affecting the fate <br /> and transport of contaminants, such as natural attenuation, shall be <br /> determined by appropriate scientific methods. <br /> (4) Permits for facilities located at sites covered by any of the programs or <br /> requirements set out in G.S. 130A-310.67(a) shall contain conditions to <br /> avoid exceedances of applicable groundwater standards adopted by the <br /> Commission pursuant to Article 21 of Chapter 143 of the General Statutes <br /> due to operation of the facility. <br /> (5) Soil shall be remediated to levels that no longer constitute a continuing <br /> source of groundwater contamination in excess of the site-specific <br /> groundwater remediation standards approved under this Part. <br /> (6) Soil shall be remediated to unrestricted use standards on residential property <br /> with the following exceptions: <br /> a. For mixed-use developments where the ground level uses are <br /> nonresidential and where all potential exposure to contaminated soil <br /> has been eliminated, the Department may allow soil to remain on the <br /> site in excess of unrestricted use standards. <br /> b. If soil remediation is impracticable because of the presence of <br /> preexisting structures or impracticability of removal, all areas of the <br /> real property at which a person may come into contact with soil shall <br /> be remediated to unrestricted use standards, and, on all other areas of <br /> the real property, engineering and institutional controls that are <br /> sufficient to protect public health, safety, and welfare and the <br /> environment shall be implemented and maintained. <br /> (7) The potential for human inhalation of contaminants from the outdoor air and <br /> other site-specific indoor air exposure pathways shall be considered, if <br /> applicable. <br /> (8) The site-specific remediation standard shall protect against human exposure <br /> to contamination through the consumption of contaminated fish or wildlife <br /> and through the ingestion of contaminants in surface water or groundwater <br /> supplies. <br /> (9) For known or suspected carcinogens, site-specific remediation standards <br /> shall be established at exposures that represent an excess lifetime cancer risk <br /> of one in 1,000,000. The site-specific remediation standard may depart from <br /> the one-in-1,000,000 risk level based on the criteria set out in 40 Code of <br /> Federal Regulations § 300.430(e)(9)(July 1, 2003 Edition). The cumulative <br /> excess lifetime cancer risk to an exposed individual shall not be greater than <br /> one in 10,000 based on the sum of carcinogenic risk posed by each <br /> contaminant present. <br /> (10) For systemic toxicants, site-specific remediation standards shall represent <br /> levels to which the human population, including sensitive subgroups, may be <br /> exposed without any adverse health effect during a lifetime or part of a <br /> lifetime. Site-specific remediation standards for systemic toxicants shall <br /> incorporate an adequate margin of safety and shall take into account cases <br /> where two or more systemic toxicants affect the same organ or organ <br /> system. <br /> (11) The site-specific remediation standards for each medium shall be adequate to <br /> avoid foreseeable adverse effects to other media or the environment that are <br /> inconsistent with the risk-based approach under this Part. <br /> House Bill 765-Ratified Session Law 2015-286 Page 21 <br />