Effects of Agriculture BMP Implementation in the Juniata River Watershed

WPC’s Watershed Conservation program installed stream bank fencing at a farm in the Juniata River watershed. The tables below illustrate the resulting water quality improvements.

 

Figure 1: Since implementing stream bank fencing, nitrate levels have decreased by a notable 99.5%. The initial sample was 132.00 mg/L, three times higher the allowable limit of 44.0 mg/L. Currently, nitrate levels are at 0.64 mg/L.

 

Figure 2: Turbidity levels have been substantially reduced since the construction of the stream bank fencing. Turbidity has been reduced by 98.0%, placing turbidity levels in the excellent range.

 

Figure 3: Dissolved oxygen (DO) concentrations have steadily increased since the institution of the cattle fencing. Current levels are twice the expected values for a waterway of this size.

 

Figure 4: Total dissolved solid (TDS) concentrations have steadily decreased since monitoring began. TDS levels have been reduced by 10.3%.

 

Figure 5: The pollution tolerance index (PTI) has shown an annual increase in macroinvertebrate scores. The PTI takes into account the tolerance of an organism to pollution. The higher the PTI score, the better the water quality. 

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