Davis Creek Lake at West Boat Ramp (Sampling Site 13) |
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 7, 2012 |
|
|
|
May 14, 2012 |
|
|
|
May 21, 2012 |
No |
0.18 |
5 |
May 28, 2012 |
No |
0.06 |
5 |
June 4, 2012 |
No |
0.07 |
3 |
June 11, 2012 |
No |
0.01 |
6 |
June 18, 2012 |
No |
0.01 |
16 |
June 25, 2012 |
No |
0.04 |
16 |
July 2, 2012 |
No |
0.06 |
|
July 9, 2012 |
No |
0.03 |
81 |
July 16, 2012 |
No |
0.05 |
6 |
July 23, 2012 |
No |
0.26 |
6 |
July 30, 2012 |
No |
0.10 |
23 |
August 6, 2012 |
No |
0.09 |
3 |
August 13, 2012 |
No |
0.03 |
30 |
August 20, 2012 |
No |
0.59 |
14 |
August 27, 2012 |
No |
0.34 |
8 |
September 3, 2012 |
No |
0.25 |
11 |
September 10, 2012 |
No |
0.19 |
0 |
September 17, 2012 |
|
|
|
September 24, 2012 |
|
|
|
October 1, 2012 |
|
|
|