Thursday, March 15, 2012

Our group investigated the PH and E. Coli bacteria concentrations in the ravine. Although we do not yet have the results of the E. Coli tests, we predict that the recent restoration will result in less E. Coli this year than last year. Our PH tests determined that the stream is relatively basic while the lake is almost completely neutral. We believe this is because the new rocks brought in during the restoration are made of limestone, which is fairly basic, and that over time, as the softer parts of the rock wear away, the stream will become more neutral.

1 comment:

  1. That is an interesting comment about the stones used in construction. What factors might make the ravines more acidic? Think about that tree canopy overhead.

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