Iron Horse Trail Lake (WMA) Iron Horse Beach (Sampling Site 47) |
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 1, 2017 |
No |
0 |
8664 |
May 8, 2017 |
No |
0 |
43 |
May 15, 2017 |
No |
0 |
4 |
May 22, 2017 |
No |
0 |
816 |
May 29, 2017 |
No |
0.25 |
101 |
June 5, 2017 |
No |
0 |
1 |
June 12, 2017 |
No |
0.73 |
4 |
June 19, 2017 |
Yes |
21.77 |
2 |
June 26, 2017 |
Yes |
32.06 |
4 |
July 3, 2017 |
Yes |
17.15 |
0 |
July 10, 2017 |
No |
15.82 |
2 |
July 17, 2017 |
No |
4.97 |
0 |
July 24, 2017 |
No |
3.22 |
0 |
July 31, 2017 |
No |
14.28 |
1 |
August 7, 2017 |
No |
3.04 |
1 |
August 14, 2017 |
No |
1.91 |
0 |
August 21, 2017 |
No |
1.16 |
1 |
August 28, 2017 |
No |
1.35 |
1 |
September 4, 2017 |
No |
1.77 |
0 |
September 11, 2017 |
No |
8.82 |
0 |
September 18, 2017 |
No |
1.31 |
0 |
September 25, 2017 |
No |
3.05 |
8 |