PUBLIC BATHING BEACH E. COLI BACTERIA LEVELS FOR GENESEE COUNTY LAKES.
September 21, 2006
Contact: Brian
McKenzie, Supervisor
Environmental Health Services
Phone:
810-257-3603
Fax: 810-257-3125
All monitoring points in Genesee County remain in
compliance with State guidelines for bacterial concentrations at bathing
beaches.
Exposure to any recreational water can be a potential health risk.
Gastrointestinal and dermatological illnesses have been associated with
recreational water exposure.
Rain and subsequent runoff can dramatically increase E. coli bacteria
levels in lakes and other surface waters. Therefore, the Genesee County
Health Department is advising that all beach patrons exercise due caution
with total body contact in area surface waters after rain events.
Your Genesee County Health Department uses the following rules to
interpret the E. coli test results. (By authority conferred on the
director of public health by section 12544 of Act No. 368 of the Public
Acts of 1978, as amended, being S333.12544 of the Michigan Compiled Laws):
R 325.2102 Sanitation and safety determinations. Rule 2. (1) Bacterial
concentrations in water at a bathing beach, as determined by standard
methods, shall contain not more than 130 Escherichia coli (E. coli) per
100 milliliters, as a 30-day geometric mean. Compliance shall be based on
the geometric mean of all individual samples taken during 5 or more
sampling events representatively spread over a 30-day period. Each
sampling event shall consist of 3 or more samples taken at representative
locations within a designated sampling area. Bathing beach waters shall
not contain more than a maximum of 300 E. coli per 100 milliliters.
Compliance shall be based on the geometric mean of 3 or more samples taken
during the same sampling event at representative locations within a
defined sampling area.
This is our final beach sampling report
2006. Sampling will resume in early May of 2007.
2006 Bacterial Concentrations of Escherichia coli per 100 milliliters
|
LOCATIONS:
|
*Week
of 5/16
|
*Week
of 5/23
|
*Week of
5/29
|
*Week
of 6/5
|
*Week
of 6/12
|
*Week
of 6/19
|
*Week
of 6/26
|
*Week of
7/03
|
*Week
of 7/10
|
*Week
of 7/17
|
*Week
of 7/24
|
*Week
of 7/31
|
*Week of
08/7
|
*Week
of 8/14
|
*Week
of 8/21
|
*Week
of 8/28
|
*Week
of 9/04
|
*Week
of 9/11
|
*Week
of 9/18
|
**30
Day Mean
|
|
Buell Lake
Boat
Ramp
|
17
|
6
|
47
|
1
|
8
|
137
|
9
|
8
|
9
|
25
|
2
|
35
|
12
|
7
|
3
|
44
|
14
|
3
|
2
|
7
|
|
Byrum
Lake
Clover
Beach
|
19
|
3
|
43
|
18
|
5
|
39
|
159
|
8
|
8
|
23
|
5
|
137
|
20
|
28
|
3
|
40
|
33
|
5
|
16
|
12
|
|
Covenant
Hill Camp
|
16
|
13
|
44
|
98
|
8
|
61
|
39
|
10
|
32
|
12
|
4
|
12
|
71
|
4
|
1
|
175
|
23
|
2
|
5
|
8
|
|
Copneconic
Camp
|
141
|
5
|
19
|
2
|
1
|
4
|
5
|
2
|
1
|
12
|
1
|
2
|
2
|
1
|
1
|
1
|
3
|
1
|
2
|
2
|
|
Copneconic Day Beach
|
--
|
--
|
--
|
--
|
--
|
4
|
1
|
2
|
1
|
11
|
1
|
3
|
4
|
1
|
1
|
1
|
13
|
1
|
2
|
2
|
|
Crooked
Lake
|
62
|
34
|
26
|
43
|
45
|
71
|
14
|
68
|
221
|
18
|
64
|
20
|
24
|
104
|
55
|
36
|
8
|
25
|
23
|
25
|
|
Dollar
Lake
|
61
|
10
|
31
|
27
|
9
|
172
|
13
|
54
|
46
|
27
|
7
|
14
|
26
|
9
|
12
|
9
|
5
|
7
|
50
|
11
|
|
Fenton
Lake -
Twp. Hall
|
4
|
1
|
4
|
5
|
1
|
9
|
2
|
2
|
1
|
30
|
2
|
3
|
2
|
13
|
14
|
8
|
10
|
11
|
25
|
25
|
|
Hasler
Lake
Campground
|
11
|
*432
|
45
|
20
|
6
|
12
|
4
|
9
|
10
|
90
|
7
|
2
|
1
|
7
|
2
|
6
|
1
|
1
|
8
|
3
|
|
Holloway
Reservoir - Buttercup Beach
|
36
|
12
|
14
|
5
|
4
|
23
|
3
|
8
|
5
|
30
|
41
|
7
|
19
|
7
|
9
|
44
|
64
|
35
|
38
|
32
|
|
Lake
Linda
|
2
|
1
|
5
|
6
|
2
|
57
|
8
|
4
|
4
|
2
|
8
|
11
|
4
|
3
|
6
|
21
|
16
|
14
|
12
|
13
|
|
Mott
Lake
- Bluebell
Beach
|
6
|
9
|
13
|
3
|
10
|
32
|
4
|
5
|
11
|
36
|
26
|
26
|
47
|
1
|
36
|
73
|
16
|
19
|
8
|
23
|
|
Myers
Lake
|
14
|
3
|
7
|
7
|
2
|
21
|
31
|
2
|
10
|
4
|
4
|
13
|
2
|
1
|
2
|
1
|
3
|
6
|
19
|
4
|
|
Pinewood
Lake
|
12
|
3
|
3
|
9
|
6
|
55
|
3
|
37
|
18
|
3
|
2
|
3
|
1
|
1
|
2
|
1
|
1
|
1
|
13
|
2
|
|
Silver Lake
-
Beach/City Park
|
3
|
2
|
15
|
3
|
1
|
19
|
67
|
4
|
106
|
4
|
35
|
12
|
7
|
18
|
46
|
27
|
7
|
25
|
16
|
20
|
|
West
Sister
Lake
|
4
|
1
|
3
|
3
|
2
|
11
|
4
|
3
|
16
|
66
|
1
|
10
|
42
|
1
|
1
|
74
|
1
|
2
|
1
|
7
|
*
Not to
Exceed
State
guideline of 300 E. coli per 100 ml
** Not to
Exceed
State
guideline of 130 E. coli per 100 ml
|
