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Exploring maps

Learn how to navigate the various maps on the Clean Water Hub

Heather Wilson avatar
Written by Heather Wilson
Updated over 4 months ago

The Clean Water Hub database displays volunteer-reported water quality data in a variety of maps. Let's talk about how to interact with these maps.

Accessing Maps

To access the Clean Water Hub's maps, begin by locating the "explore data" tab on the top menu bar.

Click on the "explore data" tab to view a list of the maps viewable on the Hub.

Click on one of these options to be taken to the selected data map.

More information on each of these maps (click to expand):

All Sites

Clicking "All Sites" will take you to a map of all of the data reported to the Clean Water Hub. This is also called the "Community Map."

The All Sites Map uses the following color coding system indicated via the legend (item A on the map above):

  • Purple sites: data reported at a site within the past year

  • Grey sites: most recent datapoint reported at a site is more than 1 year old

To navigate this interactive map, use the + and - symbols (item B on the map above) to zoom in and out. Click and drag the map with your cursor to reposition it. You may also type the name of a city, zip code, or nearby landmark into the search bar (item C). This will zoom in the map and center it upon the item you searched.

Salt Watch

Clicking "Salt Watch" will take you to a map of all of the chloride data reported to the Clean Water Hub. This includes all Salt Watch readings and all chloride readings reported via the Save Our Streams Chemical protocol.

The Salt Watch Map uses the following color coding system indicated via the legend (item A on the map above). Note, the numbers on this color scale correspond to chloride readings in ppm (mg/L).

To navigate this interactive map, use the + and - symbols (item B on the map above) to zoom in and out. Click and drag the map with your cursor to reposition it. You may also type the name of a city, zip code, or nearby landmark into the search bar (item C). This will zoom in the map and center it upon the item you searched.

Use the map filters (item D) to filter results shown on the map by water source type.

Use the date filters (item E) to view results reported during a discrete time frame.

Nitrate Watch

Clicking "Nitrate Watch" will take you to a map of all of the nitrate data reported to the Clean Water Hub. This includes all Nitrate Watch readings and all nitrate readings reported via the Save Our Streams Chemical protocol.

The Nitrate Watch Map uses the following color coding system indicated via the legend (item A on the map above).

More specifically:

  • excellent: 0-3 ppm (mg/L)

  • good: >3-5 ppm (mg/L)

  • fair: >5-10 ppm (mg/L)

  • poor: >10 ppm (mg/L)

To navigate this interactive map, use the + and - symbols (item B on the map above) to zoom in and out. Click and drag the map with your cursor to reposition it. You may also type the name of a city, zip code, or nearby landmark into the search bar (item C). This will zoom in the map and center it upon the item you searched.

Use the map filters (item D) to filter results shown on the map by water source type.

Use the date filters (item E) to view results reported during a discrete time frame.

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