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Old 06-02-2011, 12:25 AM
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STL Ponds and Waterfalls STL Ponds and Waterfalls is offline
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Join Date: Dec 2006
Location: St.louis MO
Posts: 1,175
I havent any test but that is what I was told when we did a permeable parking lot that was connected to a stream. Problem is without independant testing how can you really determine the filtering realities.
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