ABOUT THIS LOCATION
Parry Spring is located in the road right a way so it is available 24/7. Please take little ones by the hand and be careful of cars as this is a country road.
Childhood memories brought me back to this location in the quest to share yet another piece of history here in Waukesha County. Parry Spring Artesian Well still runs today, many years after the closing of the Parry Family Dairy Farm.
The cold Artesian Spring water provided the "refrigeration" necessary to keep the milk from the dairy cold until the milk man came to pick it up. The wooden "barrel" structure around the Artesian provided the holding tank.
There were four major stages of Ice Age Glaciation that left their mark on the topography and soils of Wisconsin. The last stage, called the Wisconsin stage, ended approximately 10,000 years ago. The outwash plains left stratified deposits consisting of gravel, sand, silt and clay, laid down by water from the melting ice fronts.
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 which 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 (or dug) from a 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 (which is what we have here) 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.
Pascal's law predicts the theoretical hydrostatic pressure P:
where p (rho) is the density of the fluid, g the acceleration due to gravity, and z is the elevation. In practical terms the pressure is expressed as metres water column (zr - zw).
To log this earthcache, you must complete 2 tasks.
1) BRING YOUR CAMERA. We would like a photo of your team with your GPSr at the Artesian Well. However, if you are solo caching, a photo of your GPSr with enough of the Artesian in the background that can be identified, will also be accepted. Please upload your photo(s) with your "found it" log. See photo example below.
2) BRING A GALLON CONTAINER. Measure the time it takes to fill the gallon container, then calculate this into gallons per minute - email me your answer when posting your "found it" log. (If you do not have a gallon container, use a container of known volume and do the calculation.)
Please be advised, failure to complete the TWO tasks listed above (emailing the answer and posting your photo will result in log deletion without notice.
You do NOT have to wait for confirmation from me before logging your find. Please do not make any reference to these answers in your log.
Want to be further rewarded for visiting EarthCache sites around our planet? Then why not become involved in the exciting new EarthCache Masters program. Just visit three or more EarthCache sites (view guidelines) to start being sent special collectable EarthCache Masters pins. There are four levels to strive to own - Bronze, Silver, Gold and Platinum. Its free and easy to participate! Come join in the fun.
To visit an Earthcache near you, click on the Earthcache Listings, and find a site that interests you.