Hydro_chem

	A	B	C	D	E	F	G	H	I	J	K
1	Measurement	Units	Hudson			Pond			Tap water
2			2/27/12			2/28/12			3/1/12
3			Raw	Gravel/sand filter	+ charcoal/paper	Raw	Gravel/sand filter	+ charcoal/paper	Raw	Gravel/sand filter	+ charcoal/paper
4	pH		8	7.5	10	6.75	6.5		6.5	6	8
5	electric conductivity	uS/cm	24.1	22.6		442	642	2980	79.6	98	346
6	Absorbance (turbidity)	%	98	77		0.05	0.081	0.06	96	92.5	95
7	Total coliform	#/100 ml
8	Residue	Qualitative	white			brownish	grey/white	grey	white	white	white
9		amount (ml)	0.5			0.05	0.01	0.2	0.06	0.03	0.02
10	big
11	yellow		48			48	26	28	0
12	light yellow					0	14	0	0
13	blue		2			48	16	15	0
14	small
15	yellow		47			45	4	9	0
16	light yellow		1			0	1	0	0
17	blue		0			36	2	3	0
18
19
20
21