Table 1.

Estimated numbers of enterococci and Bacteroidales shed per person based on analysis of water samples from a large pool with 10 adults

	Group I					Group II
Cycle	Enterococci			Bacteroidales Human marker		Enterococci			Bacteroidales Human marker
	(MF)	(CS)	(qPCR)	UCD (qPCR)	HF8 (qPCR)	(MF)	(CS)	(qPCR)	UCD (qPCR)	HF8 (qPCR)
1	2.6×104	2.9 ×104	3.8 ×105	1.3 ×106	B.L.	2.8 ×106	4.5 ×106	5.5 ×106	5.0 ×104	1.1 ×103
2	1.8 ×104	1.9 ×103	5.7 ×105	2.0 ×105	6.7 ×104	6.9 ×105	6.7 ×105	1.1 ×106	1.8 ×104	B.L.
3	7.0 ×104	4.3 ×104	3.9 ×105	4.3 ×105	1.6 ×105	6.8 ×105	6.3 ×105	1.3 ×106	4.4 ×104	B.L.
4	1.6 ×105	8.1 ×104	5.4 ×105	2.3 ×105	5.2 ×104	2.7 ×105	2.0 ×105	4.8 ×105	B.L.	B.L.
Ave	6.8 ×104	3.9 ×104	4.7 ×105	5.4 ×105	9.2 ×104	1.1 ×106	1.5 ×106	2.1 ×106	3.7 ×104	1.1 ×103
Stdev	6.4 ×104	3.3 ×104	9.7 ×104	5.2 ×105	5.7×105	1.1 ×106	2.0 ×106	2.3 ×106	1.7 ×104	N/A

Where B.L. is the background levels and N/A is not applicable. MF = membrane filter, CS = chromogenic substrate, UCD = bacteroidales human markers University of California Davis (Kildare et al. 2007), and HF8 = bacteroidales human fecal marker 8 (Bernhard and Field 2000).