The geologist who claimed his study shows there is plenty of water in that
well probably did a pump test. That is a standard test but often misleading
in karst. In this case, there is a good chance, based on what I know of the
area, that the well hit a relatively large conduit that stores a lot of
water. The pump test may be showing a high yield because it was primarily
tapping water stored in the conduit. If the test went long enough, the test
might reveal that when the conduit is drained, the rate of its replenishment
through fractures might be insufficient (during periods without substantial
rainfall) for the planned needs of the housing development. However, if the
conduit is carrying water recharged directly by the Little Blanco River,
then the well potentially could provide the estimated yield in the long run
- at least as long the Little Blanco keeps flowing.

 

George

 

From: Andy Gluesenkamp [mailto:a...@gluesenkamp.com] 
Sent: Thursday, September 13, 2007 10:32 AM
To: texas cavers
Subject: [Texascavers] Article on groundwater conflict and salamanders in
Blanco County

 

Hey folks,
  Here's a link to a recent newspaper article on groundwater problems in
Blanco Co. The journalist made a few leaps here and there (for example, I
never said the salamander population in question is a subspecies) but he got
the gist of it.

http://sacurrent.com/news/story.asp?id=67408

Andy

Andrew G. Gluesenkamp, Ph.D.
700 Billie Brooks Drive
Driftwood, Texas 78619
(512) 799-1095
a...@gluesenkamp.com

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