Genesee County Health Department
Better Life Through Better Health

Date:                    September 18, 2008

Release Date:       For Immediate Release        End Date: September 22, 2008     

Contact Person:    Brian McKenzie

                           Environmental Health Supervisor

                           Genesee County Health Department

 

Phone:                 (810) 257-3603       

 

E. COLI BACTERIA RESULTS FOR GENESEE COUNTY LAKES.

 

The Genesee County Health Department advises against total body contact (swimming) at the following location due to elevated E. coli bacteria:

  • BLUEBELL BEACH -- MOTT LAKE 

All other monitoring points in Genesee County are currently 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. Recent rain and subsequent runoff has dramatically increased 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 contact of area surface waters. 

Your Genesee County Health Department utilizes 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 §333.12544 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 for 2008. Sampling will resume in early May of 2009.

2008 Bacterial Concentrations of Escherichia coli per 100 milliliters

                                   

LOCATIONS:

*Wk of 5/12

*Wk of 5/19

*Wk of 5/26

*Wk of 6/2

*Wk of 6/9

*Wk of 6/16

*Wk of 6/23

*Wk of 6/30

*Wk of 7/7

*Wk of 7/14

*Wk of 7/21

*Wk of 7/28

*Wk of 8/4

*Wk of 8/11

*Wk of 8/18

*Wk of 8/25

*Wk of 9/1

*Wk of 9/08

*Wk of 9/15

**30 Day Mean

Buell Lake Boat Ramp

24

4

20

18

36

2

3

45

13

20

25

9

94

15

17

35

9

18

 133

26

Byram Lake Clover Beach

16

11

7

28

25

40

 4

7

39

87

86

215

73

15

13

64

33

14

 86

32

Covenant Hills Camp

3

1

7

3

5

9

6

6

5

5

4

1

7

3

2

13

2

27

 24

8

Copneconic Camp Beach

1

2

4

1

9

5

2

2

5

10

29

62

5

9

2

4

1

3

 65

5

Copneconic Day Beach

1

2

1

1

6

2

1

45

272

22

*579

29

44

4

2

3

2

1

 83

4

Crooked Lake

26

19

4

10

107

14

155

6

10

14

6

8

7

5

4

11

2

2

 221

8

Dollar Lake

14

31

29

8

90

48

20

40

10

70

193

35

13

7

3

7

7

2

 25

6

Lk Fenton Twp Hall/Beach

3

1

12

3

35

5

31

4

245

2

25

41

4

7

11

23

4

18

 137

19

Hasler Lake Campground

5

19

2

121

14

1

2

1

3

2

4

2

31

3

2

7

4

14

 280

11

Holloway-Buttercup Beach

24

32

12

3

8

4

2

1

12

8

17

220

11

33

265

22

4

29

 44

32

Kelly Lake

10

4

31

3

78

19

272

8

22

6

20

4

2

8

4

42

3

29

 163

18

Lake Linda

4

2

6

6

39

28

38

4

2

13

7

3

9

2

12

26

13

1

 39

11

Mott Lake - Bluebell Beach

22

73

17

131

4

24

117

26

3

62

29

*1124

44

43

107

54

33

8

 *596

91

Myers Lake

1

1

4

1

28

8

9

3

6

5

9

14

7

3

2

3

3

1

 5

2

Pinewood Lake

3

1

16

1

8

36

22

30

21

114

21

68

17

16

2

68

46

8

 60

42

Silver Lake Beach/City Park

27

5

3

4

6

9

2

2

184

42

5

4

4

10

18

11

7

11

 36

14

West Sister Lake

5

3

29

3

21

1

1

4

4

3

28

29

1

3

2

8

2

1

 250

6
 

* Not to Exceed State guideline of 300 E. coli per 100 ml

** Not to Exceed State guideline of 130 E. coli per 100 ml