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Old M-78 Artesian Well EarthCache

Hidden : 7/1/2009
Difficulty:
1 out of 5
Terrain:
1.5 out of 5

Size: Size:   not chosen (not chosen)

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Geocache Description:

Artisan Well at road side park.

Congratulations to Steve and Sara on the First to Find!




The aquifer that supplies this well cannot be steep as the Charlotte area does not have that many hills. The aquifer does penetrate a large lime stone base that covers the area and to the south to Bellevue. There is a large aquifer in the area though because it supplies at least three other Artisan wells within a two mile area as well.

On September 25, 1926, Paul and Minnie Horn sold 1.444 acres to the State of Michigan to be used as a road side park.

On September 28, 1936, an additional 0.7 acres were added to the park and the State of Michigan granted permission to place a concrete water trough at the park. The park was know as a different name at that time.

In May of 1977, the park changed names and was dedicated to and named after Mr. Wertz. Mr. Wertz was the founder of D.E. Wertz Implement Company. He served as mayor of Charlotte. He was elected to the City Charter Commission in 1961 and served on the Eaton County Road Commission.

On October 8, 1976, the State of Michigan sold the land to Eaton County for $1.00 for public road side park purposes only.

On January 12, 1993, D.E. Wertz Roadside park was transferred from the Eaton County Road Commission to Eaton County Parks because it was better equipped to maintain the park.

In 2002, the operation of the roadside park was transferred from Eaton County Parks to Carmel Township on a two year agreement.

What is an Artesian Well?

A spring is formed when the side of a hill or some other excavation crosses flowing ground water which is at or below the water table. A spring results from an aquifer filled to the point that the water overflows onto the surface. The springs may range in size from small seeps that flow occasionally after a large rainfall to huge pools pouring forth hundreds of millions of gallons daily.

How Does a Spring Form?

Springs form in rock. Some of the largest springs are formed in limestone and dolomite. Both dolomite and limestone fracture or crack relatively easily. Rainwater seeps through the ground undergoing a chemical change forming a weak carbonic acid which then enters these cracks and dissolves the rock. When the water reaches a horizontal crack or a layer of non-dissolving rock such as sandstone or shale, it begins to move sideways, forming an underground stream. Eventually this can form a large opening, or cave and may take tens to hundreds of thousands of years to complete.

How Much Water Flows?

The amount of water that flows from springs depends on many things. The size of the caverns in the rock, the water pressure of the aquifer, the size of the spring basin, and the amount of rainfall. Human activities also influence the amount of water that comes from a spring. Groundwater withdrawals in an area can reduce the pressure and water levels in an aquifer, decreasing the flow from the spring.

Is the Water Hot or Cold?

The temperature of the water depends on the temperature of the rocks it is passing through, and how long it travels before surfacing. For example, the temperature of an Ozark spring comes from its passing through rock at an average temperature of 56 F. But on the other hand, thermal springs, such as in the bubbling mud springs in Yellowstone National Park, Wyoming, occur in regions of recent volcanic activity and are fed by water heated by contact with hot rocks far below the surface.

The water in an artesian well flows from an aquifer, which is a layer of very porous rock or sediment, usually sandstone, capable of holding and transmitting large quantities of water. The geologic conditions necessary for an artesian well are an inclined aquifer sandwiched between impervious rock layers above and below that trap water in it. Water enters the exposed edge of the aquifer at a high elevation and percolates downward through interconnected pore spaces. The water held in these spaces is under pressure because of the weight of water in the portion of the aquifer above it. If a well is drilled from the land surface through the overlying impervious layer into the aquifer, this pressure will cause the water to rise in the well. In areas where the slope of the aquifer is great enough, pressure will drive the water above ground level in a spectacular, permanent fountain. Artesian springs can occur in similar fashion where faults or cracks in the overlying impervious layer allow water to flow upward. Water from an artesian well or spring is usually cold and free of organic contaminants, making it desirable for drinking.

The aquifer that supplies this well cannot be steep as this area of Michigan does not have that many hills. But as you approach the well, you will see that the water is shot out at a steady volume.

Here is the make up of the Artesian Well:

To log your visit you must:

1) Post a picture of you/your team (with the Artesian well in the background) within 6 hours of logging this as a “find”.

Include this with your log. A different picture must be posted with each log.

2) Estimate of the water rate of flow at the Artesian Well.

This can be done by bringing a container, of known volume, along with you and time how long it takes to fill.

3)How much and when was the park sold for in the 20's?

4)What is Mr. Wertz's first name and what years was he mayor of Charlotte?

Each cacher must e-mail me the answer or the log will be deleted—

Do Not post them in your log.

Additional Hints (No hints available.)