> For the complete documentation index, see [llms.txt](https://mapc.gitbook.io/ms4-gi-equity-siting-tool/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mapc.gitbook.io/ms4-gi-equity-siting-tool/introduction.md).

# Introduction

The Metropolitan Area Planning Council (MAPC) partnered with five municipalities representing different local watersheds, and several watershed and community-based organizations, to build an online, [interactive site assessment tool](https://experience.arcgis.com/experience/ee18d3b34e984de69115e1164ecfa103/) for green infrastructure projects, with an emphasis on equity. The resulting Green Stormwater Infrastructure Site Assessment Tool will help municipalities meet MS4 (Municipal Separate Storm Sewer System) requirements and reduce stormwater pollution. Specifically, this tool addresses a Year 5 requirement outlined in Section 2.3.6.d of the “Small MS4 General Permit.” 

Navigate through the following pages to learn how to use the tool and field survey, read about the underlying data and methods, and learn more about equity and green infrastructure.

### [Using the Tool](/ms4-gi-equity-siting-tool/using-the-tool/overview.md)

Guide for how to use the Green Stormwater Infrastructure Site Assessment Tool

### [Field Survey](/ms4-gi-equity-siting-tool/field-survey/overview.md)

Instructions for how to use the accompanying field survey

### [Data and Methods](/ms4-gi-equity-siting-tool/data-and-methods/data-and-sources.md)

Documentation for underlying data and methodology used to create the tool's core dataset.

### [Equity and Green Infrastructure](/ms4-gi-equity-siting-tool/equity-and-green-infrastructure/overview.md)

Deep dive and resources for the relationship between equity and green infrastructure.

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