Table 3.

Statistics for well water analytes.

Analyte	n	Min (mg/L)	Avg conc (mg/L) ± SD (mg/L)	Max (mg/L)	Number of Detections	Percent Detection
Nitrate + Nitrite as N	164	<0.05	1.61 ± 5.13	39.8	70	42.7
As	164	<0.001	0.0012 ± 0.0025	0.011	45	27.4
Mn	164	<0.01	0.102 ± 0.215	1.35	85	51.8
Zn	164	<0.01	0.11 ± 0.01	9.15	80	48.8
U	97	<0.001	0.008 ± 0.014	0.101	66	68.0
Cd	55	<0.001	N/A	N/A	0	0
Cr	55	<0.01	N/A	0.01	4	7.3
TDS	164	238	1425 ± 1215	9180	164	100.0
Sulfate	164	<1	682 ± 765	4750	163	99.4
Iron	155	<0.05	0.71 ± 2.19	21.7	79	51.0