Box Butte Lake at North Beach (Sampling Site 4) |
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 |
No |
0 |
1 |
May 12, 2014 |
No |
0 |
20 |
May 19, 2014 |
No |
0.15 |
7 |
May 26, 2014 |
No |
0 |
|
June 2, 2014 |
No |
1.27 |
1 |
June 9, 2014 |
No |
0 |
3 |
June 16, 2014 |
No |
0.02 |
6 |
June 23, 2014 |
No |
0 |
0 |
June 30, 2014 |
No |
0 |
6 |
July 7, 2014 |
No |
0 |
1 |
July 14, 2014 |
No |
0 |
66 |
July 21, 2014 |
No |
0 |
7 |
July 28, 2014 |
No |
0 |
1 |
August 4, 2014 |
No |
0.15 |
71 |
August 11, 2014 |
No |
0 |
0 |
August 18, 2014 |
No |
0 |
0 |
August 25, 2014 |
No |
.17 |
|
September 1, 2014 |
|
|
0 |
September 8, 2014 |
No |
0 |
15 |
September 15, 2014 |
No |
0 |
0 |
September 22, 2014 |
No |
0.99 |
2 |
September 29, 2014 |
No |
0 |
6 |