Minnesota Department of Health: Protecting, maintaining improving the health of all Minnesotans. The Minnesota County Well Index

The Minnesota County Well Index Online H E L P

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Layer List

To the right of the map is a frame with a title of LAYERS. This lists the available map data for displaying

Layer Visibility

The layers have scale-dependent visibility parameters. A layer will be in the layer list, available for displaying based on the scale of the map. For example, the Wells layer is not in the layer list when starting County Well Index Online. The Wells will show up on the layer list and visible when the map scale is at 1:100,000 or less. To make a layer visible, make sure that the there is a check in the check box to the left of the layer name under the Visible header. To turn off a layer's visiblity uncheck the visible checkbox and click the refresh map button. To turn on a layer's visiblility, check the visible checkbox and click the refresh map button. Layers are drawn in order from bottom to top of the layer list. If you make the 2003 Color Air Photos (Zone 15) and the 7.5 Minute quadrangles layers both visible, on your map you will only see the 2003 Color Air Photos (Zone 15) because it overlays (draws on top off) the 7.5 Minute Quadrangle layer.

The Streets layer will show in the layer list at a scale below 1:40,000 but will not display on the map. This is so street labels can be made available at a scale be low 1:40,000.

 Layer names that are italic and underlined found in the Layer List are links to the Minnesota Department of Health's website with more information regarding that layer.  Click to open up a browser to the web page.

Labeling Map Layers

Labels are available for four layers and are scale-dependent. To label a layer check the Label checkbox to the right of the Visible checkbox and click the Refresh Map button. To turn off labels uncheck the Label checkbox and click the Refresh Map button.

Available Layers with Labels

Layer Label Label Visibility Scale
Wells Minnesota Unique Well Number below 1:50,000
County County Name Always available
Township, Range and Sections Township, range, range direction, and section number below 1:90,000
Streets Street Name

1:1,000 - 1:40,000

Wellhead Protection Areas Wellhead Name

1:1,500 - 1:100,000

Special Well Construction Areas Name

1:1,500 - 1:100,000

Cities and Townships Labels Name

below 1:200,000

Available Map Layers

Below is a list of map layers describing the layer. Visibilty Scale for the layer and labels is the minimum to the maximum
Layer Name Description Visibility Scale Labels
Wells This is the County Well Index database with field verified well locations. This INCLUDES Public Water Supply wells. 1:1,000 - 1:100,000 YES
County Minnesota County boundaries Always available YES
Township, Range and Sections Minnesota Public Land Survey boundaires below 1:200,000 YES
Streets Tiger 2000 streets 1:40,000 - 1:200,000 YES

Wellhead Protection Areas

Minnesota Department of Health approved surface and subsurface area surrounding a public water supply well that completely contains the scientifically calculated wellhead protection area and is managed by the entity identified in a wellhead protection plan. The boundaries of the drinking water supply management area are delineated by identifiable physical features, landmarks or political and administrative boundaries.For more information contact the Source Water Protection Unit at 651-201-4700 or click more info..

1:1,500- 1:400,000 YES

Special Well Construction Areas

A Special Well Construction Area is sometimes also called a well advisory. It is a mechanism which provides for controls on the drilling or alteration of public and private water supply wells, and monitoring wells in an area where groundwater contamination has, or may, result in risks to the public health. The purposes of a Special Well Construction Area are to inform the public of potential health risks in areas of groundwater contamination, provide for the construction of safe water supplies, and prevent the spread of contamination due to the improper drilling of wells or borings. For more information contact Well Management at 651-201-4600 or click more info..

1:1,500 - 1:200,000 YES
Water Bodies Lakes and Rivers 1:40,000 - 1:300,000 NO
Streams, Rivers Streams, rivers, ditches 1:40,000 - 1:300,000 NO
2003 Color air Photos (Zone14) NAIP 2003 Color air photos in MrSID format
UTM zone 14
1:1,500 - 1:40,000 NA
2003 Color air Photos (Zone15) NAIP 2003 Color air photos in MrSID format
UTM zone 15
1:1,500 - 1:40,000 NA
7.5 Minute Quadrangeles USGS Digitial Raster Graphics
of the 7.5 minute Topographic Quadrangels
1:5,000 - 1:24,000 NA
Shaded Relief Shaded Relief of Minnesota
Derived from the Digital Elevation Model
Always available NA

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