RCRA Subtitle I regulates underground storage tanks (USTs) containing what substances?

The focus of RCRA Subtitle I is on the regulation of underground storage tanks (USTs) specifically used for storing petroleum and certain hazardous substances. This regulation is critical due to the potential environmental and public health risks posed by leaks and spills from USTs. The substances addressed in this context include gasoline, diesel fuel, and other oil products, which can significantly contaminate groundwater and soil if not properly managed.

The emphasis on petroleum and other hazardous substances reflects the comprehensive approach taken by RCRA to mitigate pollution and ensure safe handling of materials that may pose a risk to human health and the environment. This regulatory framework also necessitates proper installation, maintenance, and monitoring of UST systems to prevent leaks and facilitate timely detection and remediation if issues arise.

In contrast, while chemical waste and radioactive materials are regulated under various frameworks, they do not specifically align with the focus of RCRA Subtitle I on USTs. Food waste and organic materials fall outside the scope of hazardous substance management required by RCRA for USTs, as these materials are generally not associated with the same level of environmental risk as petroleum-based substances.