Butterfield - EB 2
Test Date	Nitrate - mg/L NO3 as N
01/08/00	9.00
01/22/00	10.50
02/05/00	9.50
02/19/00	6.50
03/04/00	7.00
04/01/00	10.75
04/15/00	9.75
05/06/00	5.00
05/13/00	2.75
06/03/00	2.75
06/17/00	3.00
07/08/00	3.50
07/22/00	7.00
08/05/00	6.25
08/19/00	4.25
10/21/00	8.00
11/04/00	7.00
01/13/01	4.20
02/10/01	3.00
07/07/01	12.25
10/20/01	4.75
01/19/02	7.75
04/20/02	5.00
07/27/02	9.50
10/19/02	7.75
01/04/03	7.75
04/05/03	4.25
11/01/03	10.75
04/04/04	3.25
07/10/04	1.50
10/02/04	7.50
01/08/05	4.75
04/02/05	2.25
07/09/05	4.00
01/07/06	7.25
04/01/06	7.50
10/07/06	4.75
01/06/07	5.00
04/14/07	3.25
07/07/07	8.00
01/12/08	5.00
04/05/08	6.50
07/12/08	4.25
Illinois EPA limit	7.8