Chapter 2 — Site Assessment and Planning

Before evaluating minimum requirements and starting the process for selecting On-site Stormwater Management, Flow Control, and Runoff Treatment BMPs, each project must first assess and evaluate existing and post-development site conditions. Site planning helps to maximize the potential development site opportunities while minimizing project-related stormwater impacts by minimizing impervious areas, loss of vegetation, and the volume and rate of runoff generated that must be subsequently managed on site.

This section outlines requirements for inventory and analysis of key project components, site design considerations, use of Low Impact Development (LID)/Green Stormwater Solutions (GSS) as the preferred approach to planning and design, site mapping, and submittal requirements.

Sections

Figures

Figure I-2.1. Example Map Documenting Existing Hydrologic Features.

Figure I-2.2. Example Composite Site Map.

Photos

Photo 1. Bioretention BMP in a LID Residential Neighborhood.

Photo 2. Example of a Shallow Gradient Slope.

Photo 3. Temporary Sand Bags Divert Construction Site Stormwater.

Photo 4. Sand Bags Prevent Silt-Laden Flow.