Lake North near Columbus at Swimming Beach
Data updated on: 09/29/2005

Seasonal
Geometric Mean
Geometric Mean for
last 5 samples
Single Sample Maximum
10
Compare to 126
1
Compare to 126
436
Compare to 235
Date
E. coli
(# per 100 ml)
Date
E. coli
(# per 100 ml)
05/02/2005
6
07/18/2005
2
05/09/2005
410
07/25/2005
2
05/16/2005
436
08/01/2005
5
05/23/2005
10
08/08/2005
2
05/30/2005
49
08/15/2005
113
06/06/2005
55
08/22/2005
2
06/13/2005
96
08/29/2005
7
06/20/2005
16
09/05/2005
4
06/27/2005
35
09/12/2005
1
07/04/2005
25
09/19/2005
1
07/11/2005
4
09/26/2005
15

Note: Data flagged with * did not meet NDEQ's Quality Assurance Standards

Nebraska Department of Environmental Quality
1200 "N" Street, Suite 400
P.O. Box 98922
Lincoln, Nebraska 68509
(402) 471-2186