Merritt Reservoir at NE Shore (Sampling Site 30)

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 - Valentine	Cherry County
This Lake is Sampled Weekly.
Toxic Algae Data updated on: 10/3/13	Bacteria (E. coli) data updated: 10/3/13
Level of Microcystin (ppb)	E. coli (# per 100 ml)
1.22	9
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 6, 2013	No	0.01	140
May 13, 2013	No	0.06	0
May 20, 2013	No	0	62
May 27, 2013			2
June 3, 2013	No	0.07	162
June 10, 2013	No	0.12	3
June 17, 2013	No	0.15	6
June 24, 2013	No	0.07	17
July 1, 2013	No	0.6	1
July 8, 2013	No	0.09	0
July 15, 2013	No	0.12	4
July 22, 2013	No	0.81	5
July 29, 2013	No	0.35	4
August 5, 2013	No	0.62	2
August 12, 2013	No	0.99	2
August 19, 2013	No	0.73	2
August 26, 2013	No	1.48	1
September 2, 2013	No	0.34	0
September 9, 2013	No	0.07	1
September 16, 2013	No	0.63	10
September 23, 2013	No	0.75	1
September 30, 2013	No	1.22	9