Willow Creek Lake at Swimming Beach (Sampling Site 45) |
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 5, 2014 |
|
|
|
May 12, 2014 |
No |
7.17 |
38 |
May 19, 2014 |
No |
9.43 |
10 |
May 26, 2014 |
No |
11.55 |
13 |
June 2, 2014 |
No |
15.47 |
28 |
June 9, 2014 |
No |
2.48 |
72 |
June 16, 2014 |
No |
7.04 |
29 |
June 23, 2014 |
No |
14.35 |
118 |
June 30, 2014 |
No |
19.67 |
326 |
July 7, 2014 |
No |
10.42 |
8 |
July 14, 2014 |
Yes |
21.6 |
8 |
July 21, 2014 |
Yes |
18.05 |
4 |
July 28, 2014 |
No |
11.97 |
10 |
August 4, 2014 |
Yes |
38.5 |
1 |
August 11, 2014 |
Yes |
10.22 |
22 |
August 18, 2014 |
No |
7.95 |
2 |
August 25, 2014 |
Yes |
22.75 |
1 |
September 1, 2014 |
Yes |
11.81 |
8 |
September 8, 2014 |
No |
6.32 |
4 |
September 15, 2014 |
Yes |
24.76 |
36 |
September 22, 2014 |
Yes |
3.79 |
3 |
September 29, 2014 |
No |
5.73 |
0 |