TABLE 1.

Methods used to detect target organisms

Target(s)	Methoda	Reference(s)
Fecal coliforms	Standard method 9222 D	5
E. coli	U.S. EPA method 1603	49
C. perfringens	U.S. EPA method 600-R-95/030	48
Enterococci (membrane filtration)	U.S. EPA method 1600	50
Enterococci (chromogenic substrate)	IDEXX method
Enterococci (qPCR)	Method of Haughland et al.	30
E. faecium esp	Method of Scott et al.	40
Human polyomaviruses	Method of McQuaig et al.	36
V. vulnificus	Method of Kaysner and DePaola and Gordon et al.	26, 34
Cryptosporidium spp. and Giardia spp.	Traditional filtration (IDEXX Filtamax) followed by traditional microscopy using method 1623	52
Cryptosporidium spp. and Giardia spp.	Bilayer filtration system followed by qPCR as described by Guy et al.	1, 3, 28
Enterovirus, norovirus, and hepatitis A virus	Bilayer filtration system followed by qPCR as described by DeLeon et al.	1, 3, 18

^aDetails concerning the methods used are provided in the supplemental material.