Water Quality Sampling Report for 2005

For the first 6 samplings of the 2005 season, the E. coli and total coliforms levels have been the lowest that we have seen for this period in the 7 years that we have participated in the water quality monitoring program. This was a surprise to us because the water temperatures were the highest that we have seen, ever, several degrees above the average. In fact, it is likely that we will see an all time high for the annual mean high lake temperature. We have concluded that the weeks of cloudless weather and extremely high UV ratings kept bacterial counts relatively low. Also the lack of rain resulted in a near total lack of runoff water.

Date

Site1

Site 3

Site 4

Site 5

Site 6

Site 7

Site 8

Site 12

Site 13

Site 14

5-30-05

 

TC 55

TC 8

TC <3

TC %

TC 177

TC <3

TC <3

TC 43

TC 22

 

EC 3

EC 3

EC <3

EC3

EC <3

EC <3

EC <3

EC <3

EC 11

 

6-14-05

 

TC 206

TC 46

TC 226

TC>2424

TC 16

TC 219

TC 19

TC 22

TC 94

TC 76

EC 136

EC <3

EC <3

EC 33

EC <3

EC 33

EC5

EC 13

EC 30

EC <3

6-27-05

 

TC>2424

TC 76

TC 3

TC 3

TC 3

TC 11

TC 8

TC 8

TC 43

 

EC 559

EC 3

EC <3

EC <3

EC <3

EC <3

EC <3

EC <3

EC 3

 

7-11-05

 

TC>2424

TC <3

TC 1370

TC 1370

TC 3

TC>2424

TC>2424

TC 3

TC 55

 

EC 280

EC <3

EC <3

EC <3

EC <3

EC <3

EC 19

EC <3 E

EC 5

 

7-18-05

TC>2424

TC 194

TC 28

TC 30

TC 22

TC 39

TC 19

TC 46

TC 110

TC 106

EC 938

EC 5

EC <3

EC <3

EC <3

EC 5

EC 8

EC 3

EC 3

EC <3

8-02-05

TC 79

TC 3

TC 16

TC>2424

TC 5

TC 59

TC 28

TC 33

TC39

 

EC 65

EC <3

EC <3

EC <3

EC <3

EC 5

EC <3

EC 5

EC 13

 

8-15-05

TC 255

TC 28

TC 36

TC 22

TC 72

TC 136

TC 39

TC 49 T

TC 94

 

EC 52

EC <3

EC <3

EC <3

EC <3

EC <3

EC <3

EC <3

EC <3

 

9-06-05

TC 255

TC 858

TC 308

TC 25

TC 375

TC 30

TC 161

TC 280

TC 98

TC 28

EC 156

EC <3

EC <3

EC <3

EC <3

EC <3

EC <3

EC 3

EC 8

EC 3

9-19-05

TC 43

TC 16

TC 11

TC 5

TC 36

TC 271

TC 16

TC 11

TC 14

 

EC <3

EC <3

EC <3

EC <3

EC 3

EC <3

EC <3

EC <3

EC 5

 

10-12-05

TC 30

TC 28

TC 33

TC 19

TC <3

TC 13

TC <3

TC 196

TC 19

 

EC 8

EC 3

EC <3

EC 3

EC<3

EC <3

EC <3

EC <3

EC <3

 

Site 1 Sequin River Mouth
Site 3 Menominee Channel (West end)
Site 4 Seven Mile/Nutter Bay
Site 5 Kineras Bay (South end)
Site 6 Redner Bay (North end)

Site 7 Seven Mile Narrows - control
Site 8 Transfer Station/Devil's Elbow
Site 12 Five Mile Bay/Squaw Channel
Site 13 Mouth of Boyne River/Two mile Narrows
Site 14 Victoria Island/Parry Island

The TC numbers indicate the most probable number of colony forming units of coliforms per 100 ml sample.

Coliform bacteria are introduced for the most part by warm blooded mammals. A moderate amount of total coliforms is considered a normal background level.

The EC numbers indicate the most probable number of colony forming units of E. Coli per 100 ml sample.

In this area E. coli is introduced almost entirely by human activity. Its presence usually indicates the presence of other serious pathogens.