Table 2.

p-values from t-test (95% confidence) of the comparison between similar wastewater treatment processes, and p-values and R-values from the comparison between different the processes at the each WWTP.

Microorganism	Similar processes comparison		WWTP comparison
	CAS vs. CAS	AGS vs. AGS	Vroomshoop CAS-AGS	Garmerwolde CAS-AGS
F-specific RNA bact.	0.007	0.069	0.868	0.405
Enterococci	0.073	0.336	0.069	0.372
TtC	0.623	0.284	0.077	0.585
E. coli	0.239	0.383	0.086	0.543