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Re: Logan Branch - Centre County 10-25-13

Joined:
2006/11/2 8:50
Posts: 6122
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The pumped water ends up in Logan Branch. But it's a matter of timing.

During periods of high precipitation, when the water tables are ordinarily high, the quarries must pump a lot of water to keep their work area de-watered. So in the periods when the flow in the stream would be high anyway, the flow is HIGHER than normal.

And in periods of low precipitation, such as you often have in summer and early fall, the water tables naturally drop. In these periods, the quarries do not need to pump as much to keep their work areas de-watered.

So, they are not pumping much. And the limestone aquifer, which under normal conditions is the storage that maintains a good baseflow, has been pulled down, so there is less water to maintain the baseflow.

So, in dry periods, which is crunch time, the stream flow is LOWER than normal.

Posted on: 2013/11/6 21:36


Re: Logan Branch - Centre County 10-25-13

Joined:
2008/8/24 20:26
From Mount Joy, PA
Posts: 2206
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Quote:

troutbert wrote:
And the limestone aquifer, which under normal conditions is the storage that maintains a good baseflow, has been pulled down, so there is less water to maintain the baseflow.


It's a shame to see this happening on so many of our area limestoners. Donegal Creek in Lancaster County is another prime example of a limestone spring creek that has had its flow reduced by development within the aquifer. I just have to wonder with these streams what they will look like in the future. Just a trickle?

Posted on: 2013/11/7 6:27


Re: Logan Branch - Centre County 10-25-13

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2007/4/25 10:02
Posts: 5818
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I fished it 3-4 times in the last 2 years and it appeard really milky.

It's funny in the upper area looking over my shoulders for cars coming before I make a backcast.

Posted on: 2013/11/7 15:55
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