TABLE 1.

Geometric means of fecal coliform, E. coli, and enterococcus counts from the Jacksonville area study and numbers of positive PCRs for human markers of fecal pollution

SiteNo. of times sampledGeometric mean (range) (CFU · 100 ml−1) of:No. of samples positive by PCR/no. of samples tested
Fecal coliformsE. coliEnterococciespHPyVsbaca
D17339 (85-680)165 (18-453)541 (210-1,083)4/73/73/7
D27243 (64-1,733)126 (20-553)345 (147-827)2/73/73/7
D37120 (42-400)58 (7-300)147 (32-570)1/73/71/7
D4792 (27-310)41 (5-207)54 (27-240)0/72/70/7
D57109 (45-343)69 (20-300)129 (33-690)1/71/70/7
N1728 (13-150)14 (1-110)10 (4-96)1/72/72/7
N2727 (10-67)16 (6-32)11 (4-49)1/73/73/7
N3726 (4-68)10 (0.3-46)14 (7-33)0/72/70/7
N4736 (9-220)29 (6-150)53 (5-697)0/72/70/7
N5747 (6-123)33 (6-119)38 (14-270)2/72/72/7
  • a bac, Bacteroides 16S rRNA marker.