Red Willow Lake at East Beach (Sampling Site 35) |
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.
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 4, 2015 |
No |
3.32 |
5 |
May 11, 2015 |
No |
0 |
20 |
May 18, 2015 |
No |
0 |
3 |
May 25, 2015 |
No |
0 |
51 |
June 1, 2015 |
No |
0 |
40 |
June 8, 2015 |
No |
0 |
62 |
June 15, 2015 |
No |
0.56 |
57 |
June 22, 2015 |
No |
0 |
54 |
June 29, 2015 |
No |
1.92 |
7 |
July 6, 2015 |
No |
0.34 |
15 |
July 13, 2015 |
No |
0.55 |
25 |
July 20, 2015 |
No |
0.32 |
20 |
July 27, 2015 |
No |
0.69 |
|
August 3, 2015 |
No |
2.86 |
11 |
August 10, 2015 |
No |
0.47 |
20 |
August 17, 2015 |
No |
0.48 |
8 |
August 24, 2015 |
No |
0.57 |
6 |
August 31, 2015 |
No |
0 |
5 |
September 7, 2015 |
No |
0 |
5 |
September 14, 2015 |
No |
0.22 |
10 |
September 21, 2015 |
No |
0.36 |
3 |
September 28, 2015 |
No |
0 |
8 |