Valentine Mill Pond at SE Boat Dock (Sampling Site 42) |
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 2, 2011 |
No |
0 |
9 |
May 9, 2011 |
No |
0 |
53 |
May 16, 2011 |
No |
0.03 |
87 |
May 23, 2011 |
No |
0 |
205 |
May 30, 2011 |
No |
0.02 |
102 |
June 6, 2011 |
No |
0 |
107 |
June 13, 2011 |
No |
0.01 |
308 |
June 20, 2011 |
No |
0 |
326 |
June 27, 2011 |
No |
0.09 |
152 |
July 4, 2011 |
No |
0.00 |
152 |
July 11, 2011 |
No |
0.01 |
93 |
July 18, 2011 |
No |
0.00 |
206 |
July 25, 2011 |
No |
0.26 |
36 |
August 1, 2011 |
No |
0 |
124 |
August 8, 2011 |
No |
0 |
435 |
August 15, 2011 |
No |
0 |
53 |
August 22, 2011 |
No |
0.12 |
1203 |
August 29, 2011 |
No |
0.02 |
36 |
September 5, 2011 |
No |
0.01 |
19 |
September 12, 2011 |
No |
0 |
23 |
September 19, 2011 |
No |
0.07 |
102 |
September 26, 2011 |
No |
0 |
9 |