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Maps

What is GIS and How Do You Benefit from It?

If you have ever been assisted by a St. Charles police officer or firefighter, watched snow plows run through your neighborhood, or seen a customized map developed by the City, then you have benefited from the City’s Geographic Information Systems (GIS), a division of our Informations Systems Department.

Many routine City operations are tied to a location and therefore rely on a mapping service. Maps play a vital role in locating water, sewer and electric lines, or in helping emergency crews calculate the best route with the lowest response time.

Water Hardness Map

The Water service area, in cooperation with the Engineering Division, maintains this water hardness map to help residents determine settings for new water softeners. The hardness is based on a generalization of hardness for the wells serving the various zones indicated below. Click on the map image to download a PDF map.

Geodetic Control Information

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