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Francis Scott Key Bridge Incident Updates
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Beaver Dam Swim Club Water Sampling Results

Permitted Public Bathing Beaches

April 16, 2024

Sampling ID Numbers

6

7

8

9

10

 

 Results
 (E. Coli MPN)

23

57

13

7

10

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

16.418

65.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N 4

N

September 18, 2023

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

16

14

67

96

73

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

40.215

73.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

E 7

Y

August 29, 2023

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

12

2

16

12

9

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

8.3859

80.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

W 5-10

N

August 15, 2023

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

25

261

15

7

6

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

21.027

83.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

E 7

Y

August 1, 2023

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

31

21

29

9

5

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

15.34

82.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N 6

N

July 18, 2023

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

7

5

1

1

1

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

2.0362

85.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

WNW 5

N

July 6, 2023

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

11

16

14

7

7

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

10.384

84.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N 7

N

June 14, 2023

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

30

39

56

21

35

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

34.398

72.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

E 15

Y

May 31, 2023

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

6

9

8

11

7

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

8.0241

73.4

N/A

N/A

N/A

N/A

N/A

N/A

N/A

ESE 8

No

May 16, 2023

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

16

31

18

13

3

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

12.834

70.2

N/A

N/A

N/A

N/A

N/A

N/A

N/A

NW 9

No

May 16, 2023

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

16

31

18

13

3

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

12.834

70.2

N/A

N/A

N/A

N/A

N/A

N/A

N/A

NW 9

No

May 3, 2023

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

20

15

16

14

17

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

16.277

58.8

N/A

N/A

N/A

N/A

N/A

N/A

N/A

W 7 

Yes

April 18, 2023

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

40

33

48

39

28

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

36.983

64.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

E 17 

No

August 18, 2022

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

3

17

1986

35

2

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

23.449

82.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

SE 5-10

Yes

August 2, 2022

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

55

52

115

111

61

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

74.053

82.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

E 11

Yes

July 20, 2022

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

1

1

1

6

27

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

2.7662

84.2

N/A

N/A

N/A

N/A

N/A

N/A

N/A

NE 1-5

No

July 6, 2022

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

28

99

84

12

5

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

26.856

81.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

E 5-10

Yes

June 15, 2022

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

1

29

16

3

1

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

4.2533

81.8

N/A

N/A

N/A

N/A

N/A

N/A

N/A

NW 1-5

Yes

June 1, 2022

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

13

12

3

3

32

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

8.51213

81.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

NE 5-10

No

May 23, 2022

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

173

249

128

199

211

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

187.46

75.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

SE 5-10

Yes

May 17, 2022

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

866

488

517

1986

345

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

683.98

69.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

NE 10-15

Yes

May 3, 2022

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

23

15

16

13

31

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

18.597

61.3

N/A

N/A

N/A

N/A

N/A

N/A

N/A

NW 5-10

No

April 19, 2022

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

71

105

105

127

80

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

95.523

55.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

E 22

Yes

September 8, 2021

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

<1

2

1

3

3

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

1.78

79.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

S 5-10

No

August 17, 2021

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

32

38

25

61

58

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

40.39

81.1

N/A

N/A

N/A

N/A

N/A

N/A

N/A

SE 5-10

Yes

August 3, 2021

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

55

17

17

15

17

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

20.968

79.8

N/A

N/A

N/A

N/A

N/A

N/A

N/A

E 1-5

Yes

July 20, 2021

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

12

20

21

27

20

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

19.36

83.1

N/A

N/A

N/A

N/A

N/A

N/A

N/A

NW 5-10

No

July 7, 2021

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

9

16

12

4

2

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

6.7317

85.3

N/A

N/A

N/A

N/A

N/A

N/A

N/A

S 5-10

No

June 15, 2021

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

7

26

58

13

6

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

15.24

78.9

N/A

N/A

N/A

N/A

N/A

N/A

N/A

NW 10

No

June 2, 2021

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

7

4

1

1

3

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Tide

Wind

Rain 24/hr

Results

2.43

71.6

N/A

N/A

N/A

N/A

N/A

N/A

N/A

SE 5-10

No

May 18, 2021

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

81

119

184

86

60

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind 

Rain 24/hr

Results

98.24

69.5

N/A

N/A

N/A

N/A

N/A

N/A

SE 5-10

No

May 10, 2021

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

8

11

26

8

9

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind 

Rain 24/hr

Results

11.0499

62.1

N/A

N/A

N/A

N/A

N/A

N/A

N 10

Yes

May 4, 2021

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

435

361

291

261

365

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind 

Rain 24/hr

Results

337.1

69.1

N/A

N/A

N/A

N/A

N/A

N/A

W 5-10

Yes

April 20, 2021

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

3

3

<1

<1

1

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind 

Rain 24/hr

Results

1.55

54.8

N/A

N/A

N/A

N/A

N/A

N/A

SW
10-15

Yes

August 25, 2020

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

5

12

6

12

6

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind 

Rain 24/hr

Results

7.6336

82.3

N/A

N/A

N/A

N/A

N/A

N/A

W
10-15

Yes

August 11, 2020

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

8

5

8

20

7

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

8.5164

85.5

N/A

N/A

N/A

N/A

N/A

N/A

SE 5-10

No

July 28, 2020

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

4

6

8

10

4

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

5.9851

86.2

N/A

N/A

N/A

N/A

N/A

N/A

W 5-10

No

July 15, 2020

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

20

17

26

22

19

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

20.584

84.6

N/A

N/A

N/A

N/A

N/A

N/A

E 1-5

No

June 23, 2020

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

52

37

44

45

34

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

41.925

81.1

N/A

N/A

N/A

N/A

N/A

N/A

SE 
5-10

Yes

June 9, 2020

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

9

3

6

4

5

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

5.0363

74.6

N/A

N/A

N/A

N/A

N/A

N/A

S 5-10

No

June 3, 2020

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

19

29

4

6

2 
 
Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

7.6644

71.1

N/A

N/A

N/A

N/A

N/A

N/A

SW 10-15

No

August 21, 2019

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

6

4

25

2

1 
 
Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

4.13

84.4

N/A

N/A

N/A

N/A

N/A

N/A

S 5-10

No

August 7, 2019

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

1

3

2

1

<1 
 
Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

1.43

84.2

N/A

N/A

N/A

N/A

N/A

N/A

SE 5-10

No

July 24, 2019

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

9

6

7

5

 

 
 
Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

4.52

85.2

N/A

N/A

N/A

N/A

N/A

N/A

N 5-10

No

July 10, 2019

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

24

37

10

7

4

 
 
Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

12

81.8

N/A

N/A

N/A

N/A

N/A

N/A

SE 5-10

No

June 19, 2019

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

411

186

17

29

13

 
 
Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

54.71

75.9

N/A

N/A

N/A

N/A

N/A

N/A

SE 0-5

Yes

June 5, 2019

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

5

3

3

3

7

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

3.94

75.5

N/A

N/A

N/A

N/A

N/A

N/A

SW
5-10

No

May 15, 2019

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

23

34

17

34

10

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

21.4302

64.1

N/A

N/A

N/A

N/A

N/A

N/A

W
10-15

Yes

May 1, 2019

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

23

29

15

15

15

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

18.64

61.9

N/A

N/A

N/A

N/A

N/A

N/A

E
5-10

Yes

August 28, 2018

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

4

4

3

2

2

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

2.86

80.3

1.08

3.89

8.65

0.54

48.9

6.8

SW 0-5

No

August 22, 2018

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

108

140

579

517

980

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

338.368

80.6

1.065

4.29

8.59

0.53

52.9

13.20

N 5-10

Yes

August 8, 2018

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

6

6

1

5

6

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

4.04

84.2

1.079

4.65

8.74

0.54

60.1

8.0

W 5-10

Yes

July 25, 2018

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

161

125

102

112

149

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

127.92

79.2

1.088

4.57

8.71

0.54

56.3

15.6

SE 5-10

Yes

July 17, 2018

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

10

4

4

4

16

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

6.34

83.2

1.205

5.07

8.69

0.61

65.2

7.0

S 5-10

No

June 20, 2018

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

23

16

11

10

10

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

13.23

78.5

1.173

5.51

8.81

0.58

67.5

6.0

E 0-5

No

May 21, 2018

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

10

6579 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

7.17

71.21.1595.028.83

0.57

58.24.20NE 5-10No

May 17, 2018

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

1553

1986

1300

2420

579

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

1412.3

72.8

1.152

5.43

8.97

0.57

63.0

13.20

E 5-10

Yes

May 3, 2018

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

122

105

50

59

72

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

77.08

66.0

1.252

6.86

10.09

0.62

74.8

24.70

S 10-15

No

 

August 22, 2017

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

1

3

3

2

2

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

2.05

80.8

1.145

5.09

8.94

0.57

64.2

1.70

SW
0-5

Yes

August 10, 2017

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

1

<1

<1

2

<1

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

1.15

78.5

1.150

5.21

8.97

0.57

64.0

2.00

S
0-5

No

July 27, 2017

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

14

19

17

9

15

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

14.36

82.4

1.174

5.38

9.21

0.58

69.3

14.40

S 5-10

No

July 13, 2017

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

9

12

5

6

4

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

6.65

83.2

1.169

5.71

9.12

0.58

73.7

2.50

W
5-10

No

June 21, 2017

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

64

102

91

77

79

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

81.6

79.5

1.167

5.70

9.26

0.58

68.8

6.80

W
10-15

Yes

June 7, 2017

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

66

86

73

71

44

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

66.44

71.1

1.160

5.88

9.84

0.57

67.0

15.6

NE
5-10

Yes

May 17, 2017

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

12

11

10

6

5

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

8.31

66.0

1.164

6.75

9.85

0.58

73.3

22.90

S 5-10

No

May 3, 2017

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

155

137

63

67

69

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

90.84

68.0

1.156

5.79

9.87

0.58

63.1

10.50

NE 0-5

No

 

August 25, 2016

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

3

1

2

1

5

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

1.97

82.70

1.082

8.29

9.17

0.54

106.10

NA

S
5-10

No

 

August 17, 2016

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

5

12

11

10

5

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

8.01

86.00

1.087

9.31

9.01

0.54

123.00

NA

W
5-10

Yes

August 3, 2016

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

7

11

10

10

5

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

8.26

83.90

1.08

8.81

9.11

0.54

114.30

NA

E
5-10

Yes

July 19, 2016

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

20

12

16

12

6

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

12.26

N/A

N/A

N/A

N/A

N/A

N/A

NA

NW
5-10

Yes

June 21, 2016

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

20

13

7

6

2

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

7.38

78.4

1.126

7.90

8.60

0.56

97.5

NA

W
5-10

No

June 7, 2016

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

7

6

5

4

18

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

6.85

78.20

1.095

8.90

8.51

0.540

108.40

NA

W
5-10

No

June 2, 2016

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

13

18

6

12

10

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

11.1

75.80

1.103

9.62

8.86

0.550

115.40

3.900

SE
5-10

No

May 11, 2016

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

6

12

7

10

9

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

8.54

60.80

1.101

9.21

9.03

0.540

91.30

N/A

SE
0-5

Yes

May 2, 2016

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

57

79

102

101

115

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

88.19

60.10

1.140

8.98

9.05

0.560

89.60

N/A

S
0-5

Yes

August 20, 2015

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

23

12

2

5

14

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

8.27

82.00

1.037

9.39

8.67

0.510

118.20

N/A

SE
5-10

Yes

August 5, 2015

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

3

2

5

<1

3

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

4.26

82.40

1.020

8.57

8.71

0.510

105.60

N/A

W
0-5

Yes

July 13, 2015

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

29

5

14

23

5

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

11.85

81.00

1.017

9.70

8.68

0.500

122.50

N/A

SE
0-5

No

June 22, 2015

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

8

5

20

10

5

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

8.33

81.60

1.056

9.05

8.53

0.530

115.00

N/A

NW
0-5

No

May 27, 2015

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

18

11

16

15

20

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

15.69

73.30

1.105

8.49

8.32

0.540

94.80

N/A

S
5-10

No

May 7, 2015

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

4

11

3

2

6

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

4.36

68.60

1.110

17.63

8.39

0.550

100.90

N/A

N/A

0.00"

August 7, 2014

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

30

6

5

13

7

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

9.61

79.30

0.985

8.04

9.62

0.480

99.60

N/A

NW 0-5

0.00"

July 9, 2014

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

31

17

21

22

23

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

22.37

81.50

0.949

8.83

9.60

0.470

112.90

N/A

S 0-5

0.25"

June 9, 2014

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

3

1

2

2

1

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

1.64

76.30

0.922

9.74

9.74

0.450

117.90

N/A

SE
 0-5

0.00"

May 28, 2014

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

20

38

26

44

27

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

29.79

73.00

0.894

10.33

9.32

0.440

121.50

N/A

NW 
0-5

0.30"

May 14, 2014

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

5

11

10

4

15

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

8.01

69.70

0.900

6.31

8.76

0.450

72.00

N/A

SE 
0-5

0.00"

May 12, 2014

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

      
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

2.16

62.00

0.937

9.33

8.53

0.460

97.20

N/A

W 0-5

0.10"

August 21, 2013

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

<1

2

1

1

1

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

1.14

77.10

1.076

12.19

10.43

0.540

149.20

N/A

SW 0-5

0.00"

July 31, 2013

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

3

8

4

6

4

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

4.70

77.90

1.080

10.76

10.32

0.530

133.10

N/A

W 0-5

0.00"

July 17, 2013

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

2

5

15

16

7

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

6.1

84.70

1.081

12.5

10.25

0.54

166.10

N/A

_

_

July 5, 2013

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

12

29

19

9

6

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

13.48

82.5

1.08

9.64

10.00

0.530

126.10

10.6

SW
0-5

0.00"

July 5, 2013 - Collected from sites sampled by Enviro-Chem Laboratories, Inc.

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

23

3

20

16

11

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

11.94

82.5

1.08

9.64

10.00

0.530

126.10

10.6

SW
0-5

0.00"

July 4, 2013- Collected from sites sampled by Enviro-Chem Laboratories, Inc.

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

47.3

61.3

46.5

52.8

387

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

77.27

         

July 2, 2013

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

199

184

222

173

150

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

184.00

80.90

1.073

9.67

9.94

0.530

123.10

67.5


0-5

0.50"

June 25, 2013

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

67

8

29

36

53

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

31.21

76.70

1.059

11.22

9.97

0.520

116.40

6.1

NW 
0-5

0.00"

May 24, 2013

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

43

28

21

37

21

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

28.75

73.70

1.135

9.03

9.69

0.560

112.30

17.7


5-10

0.00"

Explore Water Sampling

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Environmental Health Services

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6401 York Road, Third Floor
Baltimore, Maryland 21212

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8:30 a.m. to 4:30 p.m.