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 Weekly.
Toxic Algae Data updated on:
9/27/12		 Bacteria (E. coli) data updated:
9/27/12
Level of Microcystin (ppb) E. coli (# per 100 ml)
0 8
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.


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 7, 2012 No 0 10
May 14, 2012 No 0 0
May 21, 2012 No 0 2420
May 28, 2012 No 0 68
June 4, 2012 No 0 2
June 11, 2012 No 0 201
June 18, 2012 No 0 30
June 25, 2012 No 0 68
July 2, 2012 No 0 16
July 9, 2012 No 0 16
July 16, 2012 No 0 4
July 23, 2012 No 0 0
July 30, 2012 No 3 0
August 6, 2012 No 0 4
August 13, 2012 No 0 1
August 20, 2012 No 0 4
August 27, 2012 No 0 0
September 3, 2012 No 0.1 2
September 10, 2012 No 0 6
September 17, 2012 No 0.00 41
September 24, 2012 No 0 8
October 1, 2012