2006-12-06 P&R Packet - Laserfiche WebLink

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Shelter at Laurie LaMotte Memorial Park Included in your packet is a map of the park previously used when a concession building was being consideedr. It is useful in this potential project too as it shows where the water and electricity come into the area and where the shelter could be located. Remember, a water fountain can be placed in the area, but there would not be sewer so it would have to be designed with a different water type runoff. It would be possible to put electrical into the shelter. 1601 LaMotte Drive The house and garage on this property were demolitioned the week of November 27, 2006. When the foundation was removed it was discovered there was a capped well underneath the foundation that appears to be an artesian well. Mr. Tedd Peterson questioned the 8t. Paul Water Utility who said there were only like nine (9) artesian wells registered along Centerville Lake and this one was not registered, but that is what it appears to be. Once the foundation was removed the cap on the well was broken and cool, clear water is shooting out of the pipe continually. Public Works will cap it for now, but wanted the committee to consider using this for perhaps some type of fountain. Below is a description of an artesian well: artesian well, deep drilled well through which water is forced upward under pressure. 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. Committee Member Amundsen sent out the following email to the committee regarding the property: I'm meeting Maria Perez, Engineer Technician, Rice Creek Watershed District on Monday, December 4th @ 3:30pm on the site of the not yet named (Lake Park) property. Anyone or everyone is welcome. It's an informal meeting to look at the property and discuss the lake shore erosion, possible rain garden locations and any other program options that we might have available to us through the RCWD. I will report back to the P&R group at Wednesday's meeting. I walked the property for my first time on Thursday. For those of you who haven't walked it yet the lake shore will need to be addressed. It's a two foot drop from the grass (where there is grass) to the water. The waves are just working at the soil everyday. Roots are the only thing holding the dirt back is some areas. There is also an 8" to 10" culvert sticking out of the ground about 25 feet from the shore. I don't know where it starts. I'll look more closely on Monday. There is Black Locust growing along the shoreline which is a non-native plant/treelbush that has very sharp thorns. 40f5