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Francis Scott Key Bridge Incident Updates

Genesee Valley Outdoor Learning Center—Upper Pond Water Sampling Results

Permitted Public Bathing Beaches

May 29, 2024

Sampling ID Numbers

1

2

3

4

5

 

 Results
 (E. Coli MPN)

131

91

152

81

99

 
 

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

107.76

74.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

SSW 5

N

May 2, 2024

Sampling ID Numbers

1

2

3

4

5

 

 Results
 (E. Coli MPN)

37

37

82

13

72

 
 

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

40.207

69.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

NE 5

N

April 16, 2024

Sampling ID Numbers

1

2

3

4

5

 

 Results
 (E. Coli MPN)

9

10

9

6

14

 
 

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

9.2588

64.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N 4

N

August 28, 2023

Sampling ID Numbers

1

2

3

4

5

 

 Results
 (E. Coli MPN)

9

5

5

11

4

 
 

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

6.2969

78.0

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)

10

20

13

11

12

 
 

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

12.797

84.0

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)

6

1

5

3

4

 
 

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

3.2453

80.0

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)

13

18

22

16

15

 
 

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

16.534

81.0

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)

131

105

115

154

56

 
 

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

106.41

82.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N 7

N

June 20, 2023

Sampling ID Numbers

1

2

3

4

5

 

 Results
 (E. Coli MPN)

36

24

20

15

16

 
 

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

21.064

75.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

E 15

N

June 14, 2023

Sampling ID Numbers

1

2

3

4

5

 

 Results
 (E. Coli MPN)

727

1046

1120

1986

170

 
 

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

779.37

71.0

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)

1

3

1

2

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

1.431

72.4

N/A

N/A

N/A

N/A

N/A

N/A

N/A

E 1

No

May 16, 2023

Sampling ID Numbers

1

2

3

4

5

 

 Results
 (E. Coli MPN)

5

7

24

18

11

 
 

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

11.071

69.6

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)

26

21

25

16

23

 
 

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

21.887

57.2

N/A

N/A

N/A

N/A

N/A

N/A

N/A

W 7 mph

Yes

April 18, 2023

Sampling ID Numbers

1

2

3

4

5

 

 Results
 (E. Coli MPN)

20

19

12

4

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

11.277

68.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

E 17 mph

No

August 18, 2022

Sampling ID Numbers

1

2

3

4

5

 

 Results
 (E. Coli MPN)

2

2

2

2

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

1.7411

79.1

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)

24

28

15

16

13

 
 

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

18.378

77.9

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)

12

13

24

20

12

 
 

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

15.513

80.0

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)

41

32

33

43

36

 
 

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

36.749

77.5

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)

17

16

35

25

24

 
 

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

22.457

75.5

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)

10

8

6

9

11

 
 

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

8.614

79.3

N/A

N/A

N/A

N/A

N/A

N/A

N/A

NE 5-10

No

May 17, 2022

Sampling ID Numbers

1

2

3

4

5

 

 Results
 (E. Coli MPN)

12

17

17

18

25

 
 

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

17.324

67.0

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)

3

1

<1

1

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

1.43

60.2

N/A

N/A

N/A

N/A

N/A

N/A

N/A

NW 5-10

No

September 8, 2021

Sampling ID Numbers

1

2

3

4

5

 

 Results
 (E. Coli MPN)

1

2

4

2

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

2.17

76.0

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)

 

10

2

9

8

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

5.91

78.9

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)

17

219

22

26

24

 
 

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

34.81

75.0

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)

5

4

5

9

8

 
 

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

6.49

79.1

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)

11

15

7

7

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

11.009

80.1

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)

4

1

2

1

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

1.74

74.9

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)

5

3

8

7

8

 
 

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

5.83

69.1

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)

<1

<1

<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

1.00

63.8

N/A

N/A

N/A

N/A

N/A

N/A

SE 5-10

No

May 4, 2021

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

52

69

225

276

276

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

143.80

67.2

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)

2

4

3

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

1.89

52.3

N/A

N/A

N/A

N/A

N/A

N/A

SW5-10

Yes

August 25, 2020

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

25

17

22

24

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

22.006

79.8

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)

1

4

1

<1

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

1.8882

81.1

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)

3

5

2

5

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

4.2273

83.7

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)

13

12

20

15

12

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

14.122

81.2

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)

142

214

228

194

201

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

193.34

78.8

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)

19

11

12

12

35

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

16.015

74.5

N/A

N/A

N/A

N/A

N/A

N/A

S 5-10

No

August 21, 2019

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

61

93

89

108

66

 
 
Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

81.51

80.8

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)

68

107

107

111

139

 
 
Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

103.73

79.1

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)

146

345

194

326

147

 
 
Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

215.82

76.1

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)

40

30

43

36

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

38.24

80.2

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)

16

17

24

40

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

19.57

74.3

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)

<1

<1

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

72.1

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)

365

214

194

204

167

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

220.075

59.5

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)

<1

1

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

1.15

61.2

N/A

N/A

N/A

N/A

N/A

N/A

E 5-10

Yes

August 30, 2018

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

1

<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

1.32

77.0

0.267

4.79

7.30

0.13

57.6

42.4

N 5-10

No

August 22, 2018

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

2420

2420

1203

980

1553

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

1607.16

73.0

0.241

5.20

7.53

0.12

60.4

37.6

N 5-10

Yes

August 8, 2018

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

10

9

5

7

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

7.17

76.7

0.245

5.78

7.68

0.12

69.2

61.4

W 5-10

Yes

July 30, 2018

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

23

32

25

50

32

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

31.17

74.2

0.173

5.86

7.78

0.09

68.9

51.6

E 5-10

No

                                                                            

July 25, 2018

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

1986

>2420

>2420

>2420

>2420

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

2326.21

72.6

0.169

4.32

7.60

0.08

49.8

113

SE 5-10

Yes

July 17, 2018

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

3

4

11

4

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

4.02

80.6

0.307

5.50

7.80

0.15

68.9

46.1

S 5-10

No

June 20, 2018

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

1

1

6

8

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

2.99

76.4

0.290

6.07

7.70

0.14

72.8

39.1

E 0-5

No

May 21, 2018

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

26

30

29

50

25

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

30.92

66.9

0.264

5.69

7.60

0.13

62.8

12.90

NE 5-10

No

May 17, 2018

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

816

649

361

345

517

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

508.8

70.4

0.274

5.32

7.93

0.13

59.6

15.70

E 5-10

Yes

May 3, 2018

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

2

1

<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

1.15

64.5

0.282

8.49

8.86

0.13

89.9

33.20

S 10-15

No

August 22, 2017

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

4

5

2

5

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

3.31

78.0

0.252

6.29

8.99

0.12

76.8

10.60

SW
 0-5

Yes

August 10, 2017

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

23

20

10

35

550

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

38.85

74.5

0.250

5.32

8.11

0.12

62.9

10.70

S 5-10

No

July 27, 2017

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

47

86

155

260

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

156.64

78.7

0.253

5.50

8.46

0.12

67.4

22.70

S 5-10

No

July 13, 2017

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

4

3

4

11

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

4.36

80.0

0.264

5.84

8.22

0.13

72.4

3.00

W
5-10

No

June 21, 2017

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

23

39

24

36

31

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

29.93

77.1

0.267

6.57

8.61

0.13

79.1

14.10

W
10-15

Yes

June 7, 2017

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

10

10

11

10

12

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

10.57

69.7

0.258

6.82

8.93

0.13

75.9

26.7

NE
5-10

Yes

May 17, 2017

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

4

10

6

4

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

6.13

65.7

0.245

7.86

8.97

0.12

83.6

35.70

S 5-10

No

May 3, 2017

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

2

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

1.32

66.4

0.260

6.15

8.60

0.12

65.7

8.70

NE 0-5

No

August 17, 2016

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

38

31

10

12

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

16.63

82.30

0.252

8.37

8.26

0.12

107.60

N/A

W
5-10

Yes

August 3, 2016

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

23

36

37

45

32

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

33.80

80.00

0.25

9.29

8.20

0.12

115.10

N/A

E
5-10

Yes

July 19, 2016

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

7

3

5

5

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

4.83

N/A

N/A

N/A

N/A

N/A

N/A

N/A

NW
5-10

Yes

June 21, 2016

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

10

5

5

14

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

7.94

76.9

0.264

8.54

7.50

0.130

103.2

NA

W
5-10

No

June 7, 2016

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

27

27

26

24

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

27.41

75.50

0.264

8.92

7.10

0.130

106.10

NA

W 5-10

No

June 2, 2016

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

8

6

6

3

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

5.1

75.20

0.262

9.52

7.18

0.130

112.70

9.700

SE 5-10

No

May 11, 2016

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

1

<1

<1

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

1.32

58.40

0.273

8.96

7.20

0.130

87.60

N/A

SE 0-5

Yes

May 2, 2016

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

3

1

4

4

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

2.49

57.60

0.281

8.61

7.15

0.130

82.30

N/A

S 0-5

Yes

August 20, 2015

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

40

28

42

50

48

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

40.79

79.00

0.259

9.75

8.26

0.130

120.30

N/A

SE
5-10

Yes

August 5, 2015

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

9

6

8

4

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

4.44

79.60

0.270

10.21

7.83

0.130

127.30

N/A

W
0-5

Yes

July 13, 2015

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

28

52

32

102

50

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

47.33

78.00

0.254

10.98

7.24

0.120

132.90

N/A

SE
0-5

No

June 22, 2015

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

26

11

18

22

25

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

19.52

79.30

0.250

10.22

7.59

0.120

130.90

N/A

NW
0-5

No

May 27, 2015

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

55

19

15

10

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

20.48

74.00

0.270

11.23

7.68

0.130

121.80

N/A

S
5-10

No

May 13, 2015

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

9

7

6

10

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

9.55

69.20

0.274

9.51

7.53

0.130

105.10

N/A

N/A

N/A

May 7, 2015

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

2

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

1.32

68.70

0.269

10.84

7.57

0.130

91.30

N/A

N/A

0.00"

August 7, 2014

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

3

6

1

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

2.35

75.20

0.249

10.22

8.25

0.120

122.00

N/A

NW 0-5

0.00"

July 9, 2014

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

5

10

9

4

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

5.91

77.00

0.250

10.32

7.97

0.120

125.00

N/A

S 0-5

0.25"

June 9, 2014

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

36

4

46

55

17

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

22.83

72.60

0.240

11.60

7.79

0.120

141.10

N/A

SE 0-5

0.00"

June 5, 2014

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

91

32

52

65

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

82.44

68.80

0.243

12.82

7.88

0.120

145.70

N/A

NW 0-5

0.40"

May 28, 2014

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

1733

1553

1300

250

1046

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

982.37

68.30

0.232

10.77

7.44

0.110

121.70

N/A

NW-  05

0.30"

May 14, 2014

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

2

1

8

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

3.45

65.70

0.236

12.46

7.20

0.110

135.60

N/A

SE 0-5

0.00"

May 7, 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

8.11

53.50

0.220

13.04

7.17

0.100

131.00

N/A

W 0-5

0.10"

August 15, 2013

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

1,046

866

579

1,300

687

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

859.26

71.00

0.187

7.62

8.83

0.090

88.76

N/A

W
0-5

0.00"

July 31, 2013

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

9

5

15

12

8

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

9.16

75.50

0.223

11.89

9.21

0.110

145.00

N/A

NW 0-5

0.00"

July 17, 2013

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

8

7

8

8

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

8.30

82.30

0.236

12.27

9.18

0.11

158.00

N/A

--

--

July 5, 2013

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

4

3

4

4

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

4.09

81.90

0.218

13.55

9.21

0.110

172.60

37

SW
0-5

0.00"

July 2, 2013

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

210

140

81

147

219

 
 

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

150.28

77.20

.216

12.63

9.16

.100

154.90

56

S
0-5

0.50"

June 20, 2013

Sampling ID Numbers

1

2

3

4

5

 

Results
(E. Coli MPN)

1

1

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

1.00

73.10

.233

10.47

8.59

.110

112.40

11.9

NW
0-5

0.00"

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Environmental Health Services

Drumcastle Government Center
6401 York Road, Third Floor
Baltimore, Maryland 21212

Hours

Monday through Friday
8:30 a.m. to 4:30 p.m.