TABLE 2.

C. parvum and E. coli in 156 water samples from four areas

Area	No. of samples tested	No. (%) of samples witha:
		C. parvum	E. coli
Island	10	10 (100)bc	10 (100)d
Eastern	87	36 (41)	NTe
Western	40	21 (53)	33 (83)f
Northern	19	7 (37)	7 (37)

^aχ² test of proportions: C. parvum, χ² = 13.6, df = 3, and P < 0.005; E. coli, χ² = 17.9, df = 2, and P < 0.001. 

^bSignificantly different (P < 0.005) from values for the eastern and northern areas. 

^cSignificantly different (P < 0.05) from value for the western area. 

^dSignificantly different (P < 0.005) from value for the northern area. 

^eNT, not tested. 

^fSignificantly different (P < 0.001) from value for the northern area.