Butterfield Rd- EB 2
Test Date	Phosphate - mg/L PO4	Phosphorus - mg/L P
01/08/00	5.45	1.78
01/22/00	7.30	2.38
02/05/00	6.55	2.14
02/19/00	4.55	1.48
03/04/00	4.85	1.58
03/18/00	3.75	1.22
04/01/00	8.75	2.86
04/15/00	5.65	1.84
05/06/00	2.55	0.83
05/13/00	1.45	0.47
06/03/00	1.80	0.59
06/17/00	2.20	0.72
07/08/00	3.50	1.14
07/22/00	5.30	1.73
08/05/00	4.90	1.60
08/19/00	4.35	1.42
10/21/00	9.50	3.10
11/04/00	7.55	2.46
01/13/01	7.40	2.41
02/10/01	1.65	0.54
07/07/01	8.40	2.74
10/20/01	8.30	2.71
01/19/02	9.70	3.17
04/20/02	3.15	1.03
07/27/02	8.10	2.64
10/19/02	9.90	3.23
01/04/03	9.85	3.21
04/05/03	2.50	0.82
11/01/03	6.95	2.27
04/04/04	1.75	0.57
07/10/04	2.85	0.93
10/02/04	6.15	2.01
01/08/05	2.60	0.85
04/02/05	1.80	0.59
07/09/05	7.60	2.48
10/01/05	8.45	2.76
01/07/06	0.10	0.03
04/01/06	4.60	1.50
07/01/06	4.20	1.37
10/07/06	1.80	0.59
01/06/07	1.75	0.57
04/14/07	1.15	0.38
07/07/07	5.20	1.70
01/12/08	2.20	0.72
04/05/08	2.35	0.77
07/12/08	2.15	0.70
10/04/08	4.15	1.35
04/04/09	1.50	0.49
07/11/09	2.90	0.95
10/03/09	3.90	1.27
Illinois EPA limit	0.61