Table 7.

Fecal coliform populations from the three most contaminated sites of Page Brook watershed

Sampling siteNo. of fecal coliforms/100 ml in samples taken during the indicated period (mo/yr)a% Reduction between avgs
Before cattle access was limitedAfter cattle access was limited
AvgMinimumMaximumAvgMinimumMaximum
5/97–7/975/98–7/98
PB10190 A10280306 A17530None
PB126,015 A91011,1201,043 B16035082.7
PB16185 A0370488 A34780None
8/97–10/978/98–10/98
PB103,103 A4104,800347 B19061088.8
PB1242,400 A7,90072,0001,596 B2604,10096.2
PB162,347 A6104,400934 B2901,70060.3
11/97–2/9811/98–2/99
PB10245 A17037015 B02093.9
PB121,475 B103,4002,002 B103,900None
PB16175 A0280807 A102,280None
  • a Average (arithmetic mean) numbers in each row followed by different letters indicate a significant difference obtained by using Duncan’s multiple-range test (P < 0.01).