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Wednesday, May 22, 2013

Spring forth from the karst

Posted Wednesday, July 20, 2011, at 3:14 PM

(Photo)
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We live in a karst region. How many times have you heard that? Can you explain what karst is? What is the origin of the term?

Sitting on the Springs' Committee of the Parks and Recreation Commission, a very active behind the scenes committee that over the years has done systematic testing of various springs which develops a pattern of data on water quality, I hear the word karst more often than most. I'm no geologist, but in practical terms, I know that karst means swiss cheese underfoot.

Whatever liquids or water soluble chemicals (like salt) you put on the ground is going to end up in the ground water. The soluble rock on which the ground sits melts slowly over centuries wherever water flows or trickles creating holes, channels and caves. When the water pops out of a hillside, we call it a spring.

The water that comes out of our springs is a direct outflow of our karst geology. Spring testing has shown us that the water quality at upper and lower Basin Spring is different. Sweet Spring ain't so sweet if you're looking for a drink, at least after people living somewhere above Sweet Spring flush their toilet(s).

Harding Spring is hardly water you want to touch, let alone drink. Grotto Spring is usually just a trickle, not enough to fill a tin cup in a reasonable amount of time, although we now know that after a big rain it can gush enough water to move a hillside.

Springs come and go. Whatever happened to Dairy Spring? I've seen old pictures, but I haven't seen the spring itself. Has anyone alive today seen Dairy Spring?

How many people have seen what is purportedly the spring with the greatest water flow -- Ozarka Spring? Where is it? Where is Minnehaha Spring as described in book 1, page 52, (Ord. No. 81, 2-16-1882)?

One of the functions of the Springs' Committee's testing, under the leadership of Barbara Harmony with the scientific expertise of Jamie Froelich, Jim Helwig, Joe Scott and Patrick Pruitt among others, is the goal of "one clean spring" -- one in which we can eventually take a sip without microorganisms wreaking havoc inside our bodies.

Testing suggests Magnetic Spring is the best candidate. I'll drink to that, someday I hope.


Comments
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I know there are many who wish to pin the blame for the spring contamination on toilets, Great Passion Play, whatever.

The initial test to discover contamination is a total coliform test. Total coliform bacteria is merely an indicator suggesting that contamination from warm blooded animals is at hand. Fecal coliform bacteria is a more specific strain indicating...well, I hope you all know what the word "fecal" means.

Warm blooded animals can run the continuum from those pesky feral cats that so many residents feed, to dogs, to-or dear, shall I say it? DEER!! Yes, the pun was intended. Do the deer poop in the woods? I know the cats do, as does every other animal, including some of our drunken or stoned visitors, homeless bums, and so on.

It would be so very nice if we could all just walk up to a spring and grab a cool drink. My biggest fear is non the microscopic contamination of the springs, it is the chemical contamination from people who pour the oil from their recent oil change into the ditch, those who dump the last drops of paint from the can in the yard, and the remnants of varnishes and other toxic products that seep into the ground after remodeling. Good luck finding the true cause of spring contamination.

-- Posted by rockpilefarmer on Thu, Jul 21, 2011, at 9:15 AM


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Steven Foster is a world renowned botanical photographer. He has published many books, including 2 for National Geographic
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