Prairie Path Bridge - SC 1
Test Date	Phosphate - mg/L PO4	Phosphorus - mg/L P
01/08/00	7.30	2.38
01/22/00	10.60	3.46
02/05/00	9.90	3.23
02/19/00	5.30	1.73
03/04/00	5.00	1.63
03/18/00	7.25	2.37
04/01/00	7.65	2.50
04/15/00	6.20	2.02
05/06/00	6.65	2.17
05/13/00	2.95	0.96
06/03/00	2.75	0.90
06/17/00	3.75	1.22
07/08/00	4.25	1.39
07/22/00	9.05	2.95
08/05/00	4.95	1.62
08/19/00	5.00	1.63
09/09/00	8.90	2.90
09/23/00	4.35	1.42
10/21/00	8.85	2.89
11/04/00	7.85	2.56
12/02/00	4.20	1.37
01/13/01	7.40	2.41
02/10/01	1.65	0.54
04/07/01	2.60	0.85
07/07/01	8.00	2.61
10/20/01	2.95	0.96
01/19/02	7.65	2.50
04/20/02	3.80	1.24
07/27/02	10.05	3.28
10/19/02	10.05	3.28
01/04/03	12.35	4.03
04/05/03	2.20	0.72
01/03/04	5.60	1.83
04/03/04	1.20	0.39
07/10/04	3.50	1.14
10/02/04	7.75	2.53
01/08/05	3.75	1.22
07/09/05	9.15	2.99
10/01/05	5.15	1.68
04/01/06	4.95	1.62
07/01/06	3.45	1.13
10/07/06	1.65	0.54
01/06/07	1.30	0.42
04/14/07	0.25	0.08
07/07/07	2.45	0.80
10/06/07	2.05	0.67
01/12/08	0.50	0.16
04/05/08	0.70	0.23
07/12/08	0.70	0.23
Illinois EPA limit	0.61