Finding a Drainage Area

Select the drainage area where the STP is located. Drainage areas are subsections of basins with like-modeled and calibrated pollutant loading rates. Drainage area boundaries can be viewed on the Natural Resource Atlas. The drainage areas in the dropdown menu are based on modeling completed to support the Lake Champlain and Lake Memphremagog phosphorus total maximum daily loads (TMDLs).

1. Navigate to your location

Navigate to your site by either zooming and panning or use the “Quick Tools” button at the top left of the map to zoom to the town your STP is in or find a specific address.

2. Show Lake Segment Basins

Once you have found the location, click the layers tab at the bottom of the menu on the left. Scroll down on this menu until you see the “Lake Segment Basins” layer and check the box next to it, as shown below.

3. Get Segment from Map

The map should populate with a color and wording that indicates the Lake Segment, and the drainage area. Determine what the drainage is for this site. In the image below it is, “Winooski River.”