TABLE 4.
Concentrations of HPyVs, E. coli, enterococci, and fecal coliforms in human waste samplesa
Sourceb | Mean copies of HPyV ml −1 ± SD | Mean CFU ml −1 ± SD
|
||
---|---|---|---|---|
E. coli | Enterococci | Fecal coliforms | ||
Raw sewage influent* | (3.0 ± 1.7) × 104 A | (4.6 ± 1.8) × 104 B | (2.5 ± 0.9) × 104 A | (7.4 ± 4.3) × 104 C |
Septic tank pump truck samples* | (1.1 ± 1.0) × 104 D | (3.1 ± 1.9) × 103 D,E | (1.5 ± 1.1) × 103 E | (3.0 ± 2.0) × 104 F |
Individual septic tanks* | (1.4 ± 1.6) × 104 G,H,I | (9.7 ± 9.1) × 103 G,J,K | (5.8 ± 7.8) × 103 H,J | (3.5 ± 2.7) × 104 I,K |
Dechlorinated teritary-treated WWTP effluent† | (1.2 ± 2.5) × 10−1 L,M | (2.0 ± 1.4) × 10−2 L,N | (1.8 ± 1.2) × 10−1 O | (8.4 ± 4.5) × 10−2 M,N,O |
Values in the same row followed by the same capital letter (i.e., A through O) are not statistically different at P < 0.05.
*, repeated-measures ANOVA was used to determine statistical significance. †, nonparametric repeated-measures ANOVA was used to determine statistical significance.