TABLE 1. Classification of water samples, nand %, according to fluoride levels, Bauru, 2004.

Fluoride level (mg/L)	n	%	Classification
0|——0.55	0	0	Unacceptable
0.55|——0.65	2	4	Under-optimal
0.65|——0.75	3	6	Optimal
0.75|——0.85	10	19	Supra-optimal
0.85|——1.15	36	69	Inappropriate
1.15|——or more	1	2	Unacceptable
Total	52	100