"Table 5.  Summary statistics for ground-water quality constituents in samples
from selected domestic wells, Upper Republican Natural Resources District,
Nebraska, 1998-2001."					

"[<, less than; >, greater than]"					
					
	Unit of measurement	Number of measure-ments	Concentration		
			Minimum	Median	Maximum
Specific conductance	Microsiemens per centimeter	158	208	374	"3,421"
pH	Standard units	158	6.1	7.6	8.7
Water temperature	Degrees Celsius	158	12.6	15	20.1
Coliform bacteria	Colonies per 100 milliliter	132	0	0	>200
Nitrate	Milligrams per liter	155	0.03	2.5	24
Atrazine	Micrograms per liter	26	<0.007	<0.007	0.17
Deethylatrazine	Micrograms per liter	26	<0.006	<0.006	0.22
Metolachlor	Micrograms per liter	26	<0.013	<0.013	0.886
Prometon	Micrograms per liter	26	<0.01	<0.01	0.11