Willow Creek Reservoir – Pierce
Data updated on: 09/29/2006


Seasonal
Geometric Mean
Geometric Mean for
last 5 samples
Single Sample Maximum
35
Compare to 126
15
Compare to 126
2247
Compare to 235
Date
E. coli
(# per 100 ml)
Date
E. coli
(# per 100 ml)
05/01/2006
No Data
07/17/2006
No Data
05/08/2006
No Data
07/24/2006
16
05/15/2006
No Data
07/31/2006
3
05/22/2006
39
08/07/2006
No Data
05/29/2006
980
08/14/2006
0
06/05/2006
1593
08/21/2006
1
06/12/2006
2247
08/28/2006
37
06/19/2006
816
09/05/2006
0
06/26/2006
59
09/11/2006
35
07/05/2006
72
09/18/2006
51
07/10/2006
192
09/25/2006
111

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