2.1 Introduction

Performing a comprehensive inventory and analysis is an essential first step preceding LID design. The inventory and analysis should include on- and off-site natural and built conditions that would affect the project design. Policies, land use controls, and legally enforceable restrictions should also be evaluated and documented.

The process of planning for LID includes an in-depth analysis of the natural conditions of the site (e.g., soils, topography, hydrology, etc.), as well as the built and regulatory elements (e.g., access, utilities, easements, zoning, etc.) that will influence development and the use of LID practices. This section provides an overview of LID planning principles and presents guidelines for performing a site analysis and developing a composite site map that can be used as the basis for LID site design.

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