Lewis and Clark Reservoir at Weigland Beach (Sampling Site 23)

The table below shows the most recent sampling information for  toxic algae (Microcystin) and bacteria (E.coli) ,
Samples are typically collected on Monday and posted on the web site on Thursday or Friday.

Nearest City - Crofton Knox County
This Lake is Sampled .
Toxic Algae Data updated on:
10/5/10		 Bacteria (E. coli) data updated:
10/5/10
Level of Microcystin (ppb) E. coli (# per 100 ml)
0 308
Toxic Algae (Microcystin) Information
For more information about toxic algae and its potential health effects.		 Bacteria (E. coli) Information
For more information about bacteria and its potential health effects.
This Lake is NOT on Toxic Algae Health Alert.

Cottonwood Lake (Yankto) Collect sample at the swimming beach at the Training Dike Recreation Area. Collect sample at the swimming beach at the Weigand-Burbach State Rec Area on the Nebraska Side


On the table below, the level to trigger a toxic algae Health Alert is 20 parts per billion for the toxin Microcystin. Health Alerts stay in effect until the level stays below 20 ppb for two consecutive weeks
In the Bacteria (E.coli) column, a single sample of 235 counts (or higher) per 100 ml is considered a higher risk for illness through ingestion
.
Week Starting Weekly Health Alert Level of Microcystin (ppb) E. coli (# per 100 ml)
May 3, 2010 40
May 10, 2010 No 0 407
May 17, 2010 No 0 4
May 24, 2010 No 0 0
May 31, 2010 No 0 2
June 7, 2010 No 0.10 37
June 14, 2010 No 0 4839
June 21, 2010 No 0 775
June 28, 2010 No 0 81
July 5, 2010 No 0 86
July 12, 2010 No 0 98
July 19, 2010 No 0 326
July 26, 2010 No 0.16 291
August 2, 2010 No 0 125
August 9, 2010 No 0 22
August 16, 2010 No 0.27 5
August 23, 2010 No 0 3
August 30, 2010 No 0 4
September 6, 2010 No 0 73
September 13, 2010 No 0 11
September 20, 2010 No 0 17
September 27, 2010 0 308