Monitor Well Program

How to Read the Well Data: The first selection below is a map showing the locations of all the District’s water level monitoring wells. If you want to look at a monitor well in the area you live, consult the map to find the closest well, then select the corresponding well from the list below.  It is best to view the well data using an Excel Spreadsheet. Once you open the spreadsheet you will see tabs below and columns and rows of numbers. The first tab at the bottom is labeled “Monthly Data”. Most District wells are monitored each month (though there are exceptions). The first column in this tab shows the date that the measurement was taken. The second column shows the depth in feet to the water level.  Since it is measured below the surface, the numbers are shown as negative. The last column is the water level relative to sea level. For example, if you are taking a measurement for a well that is 200 ft above sea level and you measure the water level at -50 at the site, then the measurement of the water level relative to sea level is 150 ft. We call this the elevation of the water level and it is a way to normalize all the measurements of water level from the effects of local hills and valleys. The “Monthly Data” tab will have two graphs. The upper graph shows the change in water level through time as a measurement of feet below surface. This graph is always in blue. The second graph will look identical, but it is showing the changes in water level relative to sea level. This graph will always be in red. You may notice that some well’s water levels swing wildly from month to month, whereas others stay relatively constant. This is usually the effect of seasonal irrigation and the relative location of that monitor well to large irrigation wells. You will notice that some wells have lots of measurements and some only have a few. The District started with only a handful of monitor wells, but has been adding several each year.

A second tab at the bottom is called “Pertinent Info”. In this tab is the reference name of the well, the corresponding state well number (if one has been assigned), the physical address and the location from latitude and longitude, the well depth and the elevation of the well.  Where there is information provided, this page will also show the screened intervals (i.e. the sections of the well open to the borehole of the well).

A third tab is present on many wells and is entitled “Annual Data”. The same columns that are present on the first tab are present here.  However, only annual measurements are shown.  The annual date referenced is the day closest to the start of irrigation season each year. This will usually be the March or April measurement if present. This chart takes out the seasonal effects and shows longer term year-to-year changes in the aquifer’s water level. The corresponding chart shows the change through time of the water level relative to sea level (red line).  If a well you are looking at does not have this tab, it is because the well has not been measured long enough to have sufficient data to show annual changes.

The District will update these charts every couple of months as new data comes in. Check back periodically to see how the aquifer water levels are changing.

Monitor Well Map

Barr-Pavlu

Brunner Farms

Corcoran

Coyle

Danklefs 1

Danklefs 2

Ford

Hagendorf 1

Hagendorf 2

Herman

Kelley 1

Kelley 2

Little

Marek

Moeller

MPlus 2

Pavlu

Pickens

Prasatik

Psencik

RES-VLS

Schonenberg

Wegenhoft

Wied South

Wied North

Wilkerson



 
   
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