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Francis Scott Key Bridge Incident Updates
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Oregon Ridge Park Water Sampling Results

Permitted Public Bathing Beaches

August 21, 2014

Sampling ID Numbers

1

2

3

4

5

Results
(E. Coli MPN)

6

9

10

10

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

6.94

75.30

0.042

6.65

11.38

0.030

79.60

N/A

NW 0-5

0.00"

July 9, 2014

Sampling ID Numbers

1

2

3

4

5

Results
(E. Coli MPN)

31

17

22

20

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

24.09

80.30

0.046

7.92

9.07

0.030

99.50

N/A

S 0-5

0.25"

June 9, 2014

Sampling ID Numbers

1

2

3

4

5

Results
(E. Coli MPN)

9

7

5

7

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

7.66

75.90

0.047

6.64

7.90

0.030

80.40

N/A

SE
0-5

0.00"

May 28, 2014

Sampling ID Numbers

1

2

3

4

5

Results
(E. Coli MPN)

41

55

58

54

52

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

51.64

73.30

0.048

7.18

7.77

0.030

84.60

N/A

NW 0-5

0.30"

May 14, 2014

Sampling ID Numbers

1

2

3

4

5

Results
(E. Coli MPN)

3

5

3

9

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

4.13

69.20

0.050

8.83

7.57

0.030

99.50

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

1.00

61.90

0.050

9.36

7.50

0.030

97.00

N/A

W
0-5

0.10"

August 21, 2013

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

1.14

75.50

0.085

10.11

10.40

0.050

124.80

N/A

SW
0-5

0.00"

August 15, 2013

Sampling ID Numbers

1

2

3

4

5

Results
(E. Coli MPN)

9

8

4

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

4.09

76.90

0.087

9.42

9.98

0.050

114.40

N/A

W
0-5

0.00"

July 31, 2013

Sampling ID Numbers

1

2

3

4

5

Results
(E. Coli MPN)

3

17

5

7

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

5.56

79.90

0.091

9.02

9.74

0.050

113.80

N/A

NW 0-5

0.00"

July 17, 2013

Sampling ID Numbers

1

2

3

4

5

Results
(E. Coli MPN)

58

35

36

26

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

29.62

86.60

0.94

9.41

10.23

0.05

125.70

N/A

_

_

July 5, 2013

Sampling ID Numbers

1

2

3

4

5

Results
(E. Coli MPN)

46

11

4

22

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

14.41

82.00

0.96

8.67

9.60

0.050

112.10

13.6

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)

4

10

11

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

6.37

82.00

0.96

8.67

9.60

0.050

112.10

13.6

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)

14.4

8.5

13.4

20.3

16.9

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

14.13

na

na

na

na

na

na

na

na

na

July 2, 2013

Sampling ID Numbers

1

2

3

4

5

Results
(E. Coli MPN)

548

613

649

344

45

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

320.36

80.70

0.097

8.36

9.33

.050

106.50

65.9

S 0-5

0.50"

June 25, 2013

Sampling ID Numbers

1

2

3

4

5

Results
(E. Coli MPN)

21

34

33

34

28

Other Parameters

Geo Mean

Temp
º F

SpC
mS/cm

DO
mg/L

pH

Salinity
PSS

DO
%

Turbidity
NTU

Wind

Rain 24/hr

Results

29.52

76.20

0.100

9.11

9.33

.050

109.90

20.0

NW 0-5

0.00"

May 22, 2013

Sampling ID Numbers

1

2

3

4

5

Results
(E. Coli MPN)

17

10

19

45

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

12.37

72.00

0.121

9.64

9.19

.060

114.20

14.2

S
5-10

0.00"

August 8, 2012

Sampling ID Numbers

1

2

3

4

5

Results
(E. Coli MPN)

1

5

3

3

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

2.45

82.30

.141

7.91

8.49

.070

102.90

2.50

SW 0-5

0.00"

July 23, 2012

Sampling ID Numbers

1

2

3

4

5

Results
(E. Coli MPN)

29

26

22

13

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

17.67

80.20

0.142

7.62

7.99

0.07

96.40

0.80

NW 5-10

0.00"

June 26, 2012

Sampling ID Numbers

1

2

3

4

5

Results
(E. Coli MPN)

13

10

11

28

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

11.91

79.70

0.153

9.02

8.40

0.08

113.4

3.40

NW 15-20

0.00"

June 19, 2012

Sampling ID Numbers

1

2

3

4

5

Results
(E. Coli MPN)

6

5

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

4.04

n/a

n/a

n/a

n/a

n/a

n/a

n/a

SE 5-10

0.00"

June 4, 2012

Sampling ID Numbers

1

2

3

4

5

Results
(E. Coli MPN)

11

17

12

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

10.23

n/a

n/a

n/a

n/a

n/a

n/a

n/a

NW15-25

0.15"

May 21, 2012

Sampling ID Numbers

1

2

3

4

5

 Results
 (E. Coli MPN)

16

10

10

19

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
 

12.73

n/a

n/a

n/a

n/a

n/a

n/a

n/a

S
10-15

 0.75"

May 2, 2012

Sampling ID Numbers

1

2

3

4

5

 Results
 (E. Coli MPN)

34

4

5

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
 

5.58

n/a

n/a

n/a

n/a

n/a

n/a

n/a

W
5-10

 0.25"

August 24, 2011

Sampling ID Numbers

1

2

3

4

5

 Results
 (E. Coli MPN)

5

2

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
 

1.82

77.80

0.145

8.61

9.84

0.070

106.50

NW
5-10

 0.00"


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Environmental Health Services

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6401 York Road, Third Floor
Baltimore, Maryland 21212

Hours

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