Description of Initiative:
The Indiana Department of Environmental Management (IDEM) Institutional Controls (IC) Registry is a management system used to track sites with land use controls due to the presence of residual contamination, and to provide notice to local government units, the regulated community, developers, and other interested stakeholders of important site information in order to protect human health. The registry includes sites in all of the Indiana remediation programs including voluntary remediation, leaking underground storage tanks, brownfields, state cleanup, federal programs, RCRA corrective action, and certain solid waste disposal sites. The IC Registry is a publicly accessible, web-based site that uses three interface tools to provide information about sites subject to ICs.
A Microsoft Access database provides the foundation of the registry, with fields to track related information (address, site-specific restrictions, contaminant type, etc.) A subset of this information is provided publically via a PDF format file entitled the “IC Registry Remediation Sites Report” on the IDEM website (http://www.in.gov/idem/5959.htm ). A separate summary report listing solid waste sites with deed notices is available at the same web address.
The second interface tool, a comprehensive statewide GIS mapping platform called the IndianaMAP (http://indianamap.org), contains an IC GIS layer. This layer is viewable by going directly to the IndianaMAP website or by using the “view” hyperlink on the “IC Registry Remediation Sites Report”. The IC GIS data layer shows the location of each IC property either through a single point feature or a GIS polygon (created with ArcInfo coordinate geometry [COGO] software). Indiana is one of the first states to use polygons to portray the actual areal extent of restricted areas.
Finally, the IC Registry is integrated with records residing in the Virtual File Cabinet (VFC), Indiana’s web-based document repository. Hyperlinks on the “IC Registry Remediation Sites Report” allow users to open and view each original IC for the site (e.g. restrictive covenant, deed notice).
IDEM staff continue to improve IC Registry functionality with ongoing initiatives including:
1) replacement of original single point GIS features with newly created COGO GIS polygons as staff resources allow; 2) input of solid waste sites with deed notices (with depiction of waste boundaries), and 3) co-development of a standard IC flow schema for the Exchange Network that may be used for future data sharing initiatives at: (http://www.exchangenetwork.net/data-exchange/ic/) .
Results to Date:
- More than 1,160 remediation sites, and over 40 solid waste sites, entered in the IC registry
- Integration with VFC and state-based GIS map for public accessibility
- Creation of GIS polygons for over 300 sites using COGO software
- Improvement in geospatial accuracy for ICs; prior to initiating COGO quality assurance checks there was an approximate 10 percent error rate in submitted geospatial data or legal descriptions
Technical Environmental Specialist
Indiana Department of Environmental Management