Lake Macatawa Microcystin Samples
August 31, 2009
| Station Location |
Microcystin Concentration µg/L |
SECCHI(m) |
TEMP |
| Dutton Beach |
|
|
|
| Holland State Park |
|
1.5ft. |
69.5 F |
| Mid-Lake Macatawa |
|
|
|
August 24, 2009
| Station Location |
Microcystin Concentration µg/L |
SECCHI(m) |
TEMP |
| Dutton Beach |
|
|
|
| Holland State Park |
|
|
|
| Mid-Lake Macatawa |
2.866712 |
|
|
August 17, 2009
| Station Location |
Microcystin Concentration µg/L |
SECCHI(m) |
TEMP |
| Dutton Beach |
0 |
|
|
| Holland State Park |
2.90170 |
1ft. |
77.1 F |
| Mid-Lake Macatawa |
3.956682 |
1.25ft. |
81.9 F |
August 10, 2009
| Station Location |
Microcystin Concentration µg/L |
SECCHI(m) |
TEMP |
| Dutton Beach |
0 |
1ft. |
78.5 F |
| Holland State Park |
0 |
1.5ft. |
75.4 F |
| Mid-Lake Macatawa |
5.05643 |
1.5ft. |
75 F |
August 3, 2009
| Station Location |
Microcystin Concentration µg/L |
SECCHI(m) |
TEMP |
| Dutton Beach |
0 |
1 ft |
77. 4 C |
| Holland State Park |
0 |
|
71. 8 F |
| Mid-Lake Macatawa |
0 |
|
|
| Station Location |
Microcystin Concentration µg/L |
SECCHI(m) |
TEMP |
| Dutton Beach |
0 |
1 ft |
77. 4 C |
| Holland State Park |
0 |
|
71. 8 F |
| Mid-Lake Macatawa |
0 |
|
|
July 27, 2009
| Station Location |
Microcystin Concentration µg/L |
SECCHI(m) |
TEMP |
| Dutton Beach |
0 |
1.5 ft |
80.6 F |
| Holland State Park |
0 |
3 ft |
76.5 F |
| Mid-Lake Macatawa |
0 |
2.4 ft |
73.4 F |
July 20, 2009
| Station Location |
Microcystin Concentration µg/L |
SECCHI(m) |
TEMP |
| Dutton Beach |
0 |
1.5 ft |
76 F |
| Holland State Park |
0.391644 |
|
75.4 F |
| Mid-Lake Macatawa |
0.23744 |
2 ft |
72 F |
July 13, 2009
| Station Location |
Microcystin Concentration µg/L |
SECCHI(m) |
TEMP |
| Dutton Beach |
0 |
3.2 ft |
78.7 F |
| Holland State Park |
7.09585 |
|
74 F |
| Mid-Lake Macatawa |
0 |
1.75 ft |
74. 2 F |
July 6, 2009
| Station Location |
Microcystin Concentration µg/L |
SECCHI(m) |
TEMP |
| Dutton Beach |
0 |
1.5 |
74.6 F |
| Holland State Park |
0 |
2.5 ft |
75.6 F |
| Mid-Lake Macatawa |
0 |
1.5 ft |
73.1 F |
June 29, 2009
| Station Location |
Microcystin Concentration µg/L |
SECCHI(m) |
TEMP |
| Dutton Beach |
0 |
|
81.2 F |
| Holland State Park |
0 |
1 ft |
74.7 F |
| Mid-Lake Macatawa |
0 |
|
|
June 22, 2009
| Station Location |
Microcystin Concentration µg/L |
SECCHI(m) |
TEMP |
| Dutton Beach |
0 |
|
76.4 F |
| Holland State Park |
0 |
|
76 F |
| Mid-Lake Macatawa |
0 |
0.82 |
73.1 F |
WHO Recommended Guidelines
Drinking water = 1µg/L
Low risk recreational = 2-4µg/L
Moderate risk recreational - 20µg/L
High risk recreational = avoid visible scums
