Source Water Protection Activity Guide

Quick Select

Use any of the following drop-down menus to navigate through the guide. Choosing a potential contaminant source category from the drop-down menu will narrow your potential contaminant source choices. Choosing a protection activity category from the drop-down menu will narrow your protection activity choices.

Contaminant Type

Potential Contaminant Source Category Potential Contaminant Source

Protection Activity Category Protection Activity

Low Impact Development: Grass Swales

Protection Activity: Best Management Practices

Low impact development is an approach to land development (or redevelopment) that incorporates natural features to manage stormwater and protect water quality. Low impact development minimizes runoff by promoting infiltration, evapotranspiration, and collection for use through natural landscape features and fewer impervious surfaces. The result is a functional and visually appealing development that treats stormwater as a resource, not as waste. 

Grass swales are depressions in the ground near impervious surfaces that collect stormwater runoff from streets, driveways, parking lots, and other hard surfaces. Once water is collected in the swale, infiltration helps remove contaminants before the water recharges ground water supplies. Grass swales also provide a place for snow storage in winter months. 

Resources for this Protection Activity:

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