Daily Rules, Proposed Rules, and Notices of the Federal Government
EPA is releasing this draft tool and its documentation solely for the purpose of pre-dissemination peer review under applicable information quality guidelines. This tool and its documentation have not been formally disseminated by EPA. It does not represent and should not be construed to represent any Agency policy or determination.
Comments may be submitted electronically via http://www.regulations.gov, by mail, by facsimile, or by hand delivery/courier. Please follow the detailed instructions provided in the
For technical information, contact Britta Bierwagen, NCEA; telephone: 703-347-8613; facsimile: 703-347-8694; or e-mail:
The GIS tool and its documentation, “ICLUS SERGoM v3 User's Manual: ArcGIS Tools and Datasets for Modeling US Housing Density Growth,” enable users to run SERGoM with the population projections developed for the ICLUS project and allow users to modify the spatial allocation of housing density across the landscape. The data provided from the ICLUS project consist of five population scenarios by county for the conterminous US and are available in 5-year increments from 2000 to 2100. The population projections for each US county drive the production of new housing units, which are allocated in response to the spatial pattern of previous growth (
The GIS tool allows users to:
• Replace the ICLUS projected population values to reflect different growth rate assumptions;
• customize housing density patterns by altering household size and travel time assumptions;
• summarize patterns by region, watershed, county, or NLCD 2001 land cover classes;
• reclassify housing density into classes different than those already provided; and
• generate a map of estimated impervious surface based on a housing density map.
Submit your comments, identified by Docket ID No. EPA-HQ-ORD 2009-0857, by one of the following methods:
If you provide comments by mail or hand delivery, please submit three copies of the comments. For attachments, provide an index, number pages consecutively with the comments, and submit an unbound original and three copies.