FS-005-97-TABLE 1

	10		51		302		402		503		702		Pinal Creek at Inspiration Dam
Table 1. Measured water chemistry of wells and surface water, Pinal Creek Basin, spring 1996 [Values are in milligrams per liter except for pH; <, less than; — indicates no data]

	Sample location

Sample date	June 1		June 6		June 6		June 2		June 8		May 31		May 31

pH	6	.8	3	.9	4	.0	4	.2	5	.3	6	.9	7	.8
Calcium	56		300		210		250		460		470		390
Magnesium	17		97		38		73		110		88		90
Sodium	26		77		66		58		62		57		63
Potassium	2	.0	8	.2	4	.4	5	.3	5	.3	3	.9	6	.4
Alkalinity	199		—		—		—		27		165		90
Total dissolved inorganic carbon	—		20		20		24		24		—		—
Sulfate	36		1,900		1,200		1,400		1,800		1,200		1,500
Chloride	26		41		45		54		49		48		47
Fluoride		.3	7	.6	3.4		4	.9	2	.9		.4	3	.1
Silica	26		88		75		73		67		43		30
Iron	<	.003	200		140		190			.026	<	.009	<	.130
Manganese		.001	13		<7	.1	24		75		1	.1	45	.5
Aluminum	<	.005	28	.1	13	.7	10	.6	2	.61	<	.005		.250
Cadmium	<	.001		.069	<	.049		.011		.022	<	.003		.007
Copper		.02	24		11		12			.67	<	.03	<	.03
Cobalt	<	.003	—		—			.41		.87		.014		.21
Nickel	<	.01		.45		.24		.42		.80	<	.03		.49
Strontium		.37	1	.3		.81	1	.0	1	.5	1	.4	1	.4
Zinc		.008	2	.9	1	.5	2	.1	1	.9	<	.009		.35