Restricted Sites (Institutional Controls)

This dataset was developed to provide the spatial component of recorded Institutional Controls (ICs) for managed facilities of the Indiana Department of Environmental Management (IDEM). IDEM Office of Land Quality uses a system of risk-based closure to address releases of hazardous substances or petroleum. When contamination remains on site, a legal or administrative measure called an Institutional Control (IC) may be needed. An IC protects human health and the environment by restricting property activity, use, or access to minimize exposure to contamination. Institutional Control (IC) polygons were created by Coordinate Geometry (COGO) from recorded Environmental Restrictive Covenants (ERCs) and other Institutional Controls (ICs) mandated by the Indiana Department of Environmental Management (IDEM). Also included is information such as the site address, county, city, IDEM cleanup program overseeing the project, and the types of land use restrictions applicable for the site and a link to view the actual IC document using IDEM’s Virtual File Cabinet.本数据集旨在为印第安纳州环境管理部（Indiana Department of Environmental Management, IDEM）所辖受监管设施的已备案制度管控措施（Institutional Controls, ICs）提供空间要素数据。IDEM土地质量办公室采用基于风险的关闭程序，以处置危险物质或石油泄漏事件。当场地仍残留污染时，可能需要采取名为“制度管控措施”的法律或行政手段：此类措施通过限制场地的活动、使用方式或准入权限，最大限度降低污染暴露风险，从而保护人体健康与生态环境。本数据集的制度管控面要素通过坐标几何（Coordinate Geometry, COGO）技术，基于已备案的环境限制性契约（Environmental Restrictive Covenants, ERCs）及印第安纳州环境管理部（IDEM）规定的其他制度管控措施生成。数据集还涵盖场地地址、所属县域、城市名称、监管该项目的IDEM清理项目类别、适用于该场地的土地使用限制类型，以及通过IDEM虚拟文件柜（Virtual File Cabinet）查看实际制度管控文件的链接。