Water Quality Test Results

Last Test Date: April 26, 2024

Location: Laguna Beach, Main Beach

                                Latitude and Longitude: 33º 32.50 N 117º 47.09 W
                                Depth of Station: 5 meters
                                Depth of Sample: 1 meter

01/27/24

02/25/24

03/31/24

04/26/24

05/25/24

06/29/24

07/27/24

08/31/24

09/28/24

10/26/24

11/30/24

12/28/24

Last rain

Nitrates

0 ppm

Ammonia - nitrogen

0.05 ppm

0.02 ppm

0.10 ppm

0.05 ppm

Dissolved Oxygen

7.6 ppm

7.7 ppm

7.6 ppm

6.8 ppm

Phenols

Salinity

36 ppt

35 ppt

Orthophosphates

0.01 ppm

0.04 ppm

0.15 ppm

7.55

7.65

7.60

6.80

Water Temperature

15.0 C

14.5 C

13.0 C

Air Temperature

20.0 C

15.5 C

11.0 C

15.0 C

ND=Not Detected NM=Not Measured

01/28/23

02/26/23

03/25/23

04/29/23

05/27/23

06/24/23

07/30/23

08/26/23

09/30/23

10/29/23

11/25/23

12/30/23

Last rain

Nitrates

0 ppm

Ammonia - nitrogen

0.16 ppm

0.01 ppm

0.08 ppm

0.10 ppm

0.11 ppm

0.12 ppm

008 ppm

0.11 ppm

0.02 ppm

0.15 ppm

Dissolved Oxygen

7.6 ppm

8.0 ppm

8.2 ppm

7.0 ppm

7.9 ppm

6.6 ppm

8.1 ppm

7.4 ppm

9.1 ppm

7.8 ppm

7.5 ppm

Phenols

Salinity

38 ppt

37 ppt

35 ppt

37 ppt

35 ppt

36 ppt

37 ppt

Orthophosphates

0.09 ppm

0.12 ppm

0.07 ppm

0.11 ppm

0.17 ppm

0.10 ppm

0.08 ppm

0.07 ppm

0.02 ppm

0.14 ppm

8.07

8.09

7.89

8.13

8.04

8.08

8.01

8.20

8.09

8.03

Water Temperature

13.0 C

15.0 C

17.0 C

22.0 C

17.0 C

18.5 C

18.0 C

16.5 C

14.0 C

Air Temperature

13.5 C

11.0 C

13.0 C

18.0 C

19.0 C

20.0 C

18.5 C

19.0 C

24.0 C

18.0 C

14.5 C

ND=Not Detected NM=Not Measured

01/29/22

02/26/22

03/26/22

04/30/22

05/28/22

06/25/22

07/30/22

08/21/22

09/24/22

10/29/22

11/26/22

12/31/22

Last rain

Nitrates

0 ppm

Ammonia - nitrogen

0.12 ppm

0.13 ppm

0.14 ppm

0.05 ppm

0.07 ppm

0.03 ppm

0.08 ppm

011 ppm

0.12 ppm

0.10 ppm

0.08 ppm

Dissolved Oxygen

8.8 ppm

7.2 ppm

7.8 ppm

8.9 ppm

7.0 ppm

7.6 ppm

7.2 ppm

7.5 ppm

7.0 ppm

7.2 ppm

7.4 ppm

Phenols

Salinity

38 ppt

37 ppt

38 ppt

36 ppt

37 ppt

38 ppt

Orthophosphates

0.06 ppm

0.08 ppm

0.05 ppm

0.12 ppm

0.01 ppm

0.08 ppm

0.04 ppm

0.17 ppm

0.07 ppm

0.05 ppm

8.04

7.82

8.11

8.24

8.03

8.13

8.32

8.10

8.06

8.12

Water Temperature

14.0 C

13.0 C

14.5 C

15.0 C

17.0 C

13.5 C

20.0 C

20.5 C

18.0 C

15.0 C

Air Temperature

15.0 C

15.5 C

14.0 C

16.0 C

17.0 C

20.0 C

22.5 C

22.0 C

19.5 C

14.0 C

ND=Not Detected NM=Not Measured

01/30/21

02/27/21

03/27/21

04/24/21

05/29/21

06/26/21

07/31/21

08/28/21

09/25/21

10/31/21

11/25/21

12/26/21

Last rain

Nitrates

0 ppm

Ammonia - nitrogen

0.02 ppm

0.08 ppm

0.09 ppm

0.10 ppm

0.12 ppm

0.15 ppm

0.17 ppm

0.10 ppm

0.11 ppm

0.17 ppm

Dissolved Oxygen

8.0 ppm

9.0 ppm

7.7 ppm

7.8 ppm

8.1 ppm

7.7 ppm

8.3 ppm

7.8 ppm

7.4 ppm

7.7 ppm

Phenols

Salinity

38 ppt

36 ppt

37 ppt

38 ppt

Orthophosphates

0.08 ppm

0.11 ppm

0.12 ppm

0.13 ppm

0.08 ppm

0.06 ppm

0.07 ppm

0.03 ppm

0.06 ppm

0.10 ppm

8.00

7.98

8.00

7.95

8.12

8.24

8.20

8.17

8.03

Water Temperature

13.0 C

14.0 C

13.0 C

16.0 C

16.5 C

17.0 C

15.0 C

14.0 C

Air Temperature

15.0 C

13.0 C

15.0 C

15.5 C

18.0 C

17.0 C

19.5 C

17.0 C

17.5 C

13.0 C

ND=Not Detected NM=Not Measured

01/25/20*

02/29/20

03/28/20**

04/28/20**

05/28/20**

06/27/20

07/26/20

08/29/20

09/26/20

10/31/20

11/28/20

12/26/20

Last rain

Nitrates

0 ppm

Ammonia - nitrogen

0.00 ppm

0.04 ppm

0.06 ppm

0.07 ppm

0.08 ppm

0.11 ppm

0.08 ppm

0.06 ppm

Dissolved Oxygen

7.5 ppm

8.3 ppm

8.03 ppm

7.8 ppm

7.4 ppm

7.6 ppm

7.5 ppm

8.3 ppm

Phenols

Salinity

38 ppt

36 ppt

37 ppt

36 ppt

37 ppt

38 ppt

Orthophosphates

0.10 ppm

0.09 ppm

0.02 ppm

0.09 ppm

0.07 ppm

0.12 ppm

0.10 ppm

8.08

8.06

8.09

8.08

8.03

8.10

8.06

8.15

8.00

Water Temperature

15.5 C

15.0 C

18.5 C

17.0 C

19.0 C

17.0 C

15.0 C

14.5 C

Air Temperature

13.5 C

16.0 C

19.0 C

20.0 C

19.0 C

20.0 C

14.0 C

19.0 C

15.5 C

* Beach Posted: Contaminated Water, Measurements taken at surf zone

** Beach Closed: COVID-19 Outbreak, No Measurements Taken

ND=Not Detected NM=Not Measured

01/26/19

02/23/19

03/30/19

04/28/19

05/24/19

06/30/19

07/27/19

08/31/19

09/22/19

10/26/19

11/30/19*

12/28/19

Last rain

Nitrates

0 ppm

Ammonia - nitrogen

0.04 ppm

0.06 ppm

0.22 ppm

0.06 ppm

0.17 ppm

0.15 ppm

0.20 ppm

0.15 ppm

0.21 ppm

0.18 ppm

0.31 ppm

0.26 ppm

Dissolved Oxygen

8.2 ppm

7.8 ppm

8.0 ppm

8.3 ppm

7.4 ppm

7.7 ppm

7.6 ppm

7.5 ppm

7.3 ppm

7.6 ppm

Phenols

Salinity

37 ppt

38 ppt

36 ppt

37 ppt

36 ppt

35 ppt

36 ppt

37 ppt

38 ppt

Orthophosphates

0.07 ppm

0.13 ppm

0.10 ppm

0.08 ppm

0.10 ppm

0.07 ppm

0.06 ppm

0.12 ppm

0.10 ppm

0.18 ppm

8.05

7.97

7.95

8.06

8.01

8.00

8.02

8.07

8.10

8.13

8.17

8.03

Water Temperature

14.0 C

13.0 C

14.0 C

15.5 C

13.5 C

19.0 C

20.0 C

21.5 C

23.5 C

17.0 C

Air Temperature

17.0 C

14.0 C

16.0 C

17.5 C

15.0 C

20.0 C

22.0 C

23.0 C

22.0 C

23.0 C

14.5 C

17.0 C

* Beach Posted: Contaminated Water, Measurements taken at surf zone

ND=Not Detected NM=Not Measured

01/27/18

02/24/18*

03/31/18

04/28/18

05/26/18

06/30/18

07/28/18

08/25/18

10/07/18

10/27/18

11/25/18

12/29/18

Last rain

Nitrates

0 ppm

Ammonia - nitrogen

0.01 ppm

0.00 ppm

0.03 ppm

0.06 ppm

0.08 ppm

0.11 ppm

0.13 ppm

0.21 ppm

0.00 ppm

0.11 ppm

0.09 ppm

0.07 ppm

Dissolved Oxygen

8.0 ppm

6.6 ppm

7.5 ppm

8.4 ppm

6.6 ppm

7.3 ppm

7.8 ppm

7.3 ppm

7.5 ppm

7.6 ppm

7.7 ppm

7.2 ppm

Phenols

Salinity

37 ppt

38 ppt

37 ppt

36 ppt

41 ppt

35 ppt

34 ppt

36 ppt

37 ppt

38 ppt

Orthophosphates

0.04 ppm

0.08 ppm

0.10 ppm

0.05 ppm

0.08 ppm

0.02 ppm

0.04 ppm

0.07 ppm

0.06 ppm

0.08 ppm

0.06 ppm

8.18

8.13

8.10

8.21

8.00

8.25

8.26

8.08

8.05

8.03

8.05

Water Temperature

14.0 C

12.0 C

13.0 C

15.5 C

20.0 C

23.0 C

21.5 C

19.5 C

18.5 C

17.5 C

14.5 C

Air Temperature

16.0 C

8.5 C

13.0 C

15.0 C

16.5 C

18.0 C

20.5 C

22.0 C

20.0 C

17.5 C

18.0 C

14.5 C

* Measurement taken at 0745

ND=Not Detected NM=Not Measured

01/28/17

02/25/17

03/25/17

04/29/17

05/27/17

06/24/17

07/29/17

08/26/17

10/01/17

10/28/17

11/25/17

12/30/17

Last rain

Nitrates

0 ppm

Ammonia - nitrogen

0.00 ppm

0.04 ppm

0.03 ppm

0.00 ppm

0.02 ppm

0.01 ppm

0.09 ppm

0.73 ppm

0.00 ppm

Dissolved Oxygen

7.3 ppm

7.6 ppm

7.0 ppm

7.6 ppm

7.5 ppm

7.9 ppm

7.4 ppm

6.4 ppm

7.0 ppm

7.6 ppm

7.2 ppm

Phenols

Salinity

38 ppt

37 ppt

36 ppt

35 ppt

34 ppt

35 ppt

36 ppt

35 ppt

36 ppt

37 ppt

Orthophosphates

0.06 ppm

0.08 ppm

0.07 ppm

0.02 ppm

0.04 ppm

0.03 ppm

0.06 ppm

0.02 ppm

0.00 ppm

0.05 ppm

0.03 ppm

8.10

8.01

7.99

8.03

8.04

8.01

8.10

8.13

8.09

8.07

8.12

8.08

Water Temperature

14.5 C

13.5 C

14.0 C

15.5 C

16.0 C

19.0 C

20.5 C

20.0 C

19.0 C

16.0 C

Air Temperature

18.0 C

14.0 C

15.0 C

25.0 C

16.0 C

19.0 C

21.5 C

21.0 C

18.0 C

22.0 C

15.5 C

ND=Not Detected NM=Not Measured

01/30/16

02/27/16

03/26/16

04/30/16

05/28/16

06/25/16

07/30/16

08/27/16

09/24/16

10/29/16

11/27/16

12/31/16

Last rain

11/27/16

Nitrates

0 ppm

Ammonia - nitrogen

0.06 ppm

0.11 ppm

0.04 ppm

0.13 ppm

0.05 ppm

0.08 ppm

0.26 ppm

0.08 ppm

0.10 ppm

0.03 ppm

0.12 ppm

0.00 ppm

Dissolved Oxygen

7.5 ppm

7.8 ppm

7.7 ppm

7.1 ppm

7.5 ppm

7.1 ppm

7.0 ppm

7.2 ppm

7.4 ppm

7.3 ppm

7.6 ppm

Phenols

Salinity

36 ppt

35 ppt

36 ppt

34 ppt

35 ppt

Orthophosphates

0.11 ppm

0.06 ppm

0.00 ppm

0.03 ppm

0.08 ppm

0.11 ppm

0.04 ppm

0.06 ppm

0.01 ppm

0.04 ppm

0.08 ppm

0.06 ppm

8.15

8.20

8.18

8.20

8.19

8.15

8.16

8.07

8.11

8.04

8.12

8.13

Water Temperature

15.0 C

16.0 C

15.0 C

17.0 C

20.5 C

22.0 C

19.5 C

18.5 C

16.0 C

14.0 C

Air Temperature

15.0 C

18.5 C

17.0 C

15.0 C

15.5 C

20.5 C

22.0 C

20.5 C

21.0 C

19.0 C

13.0 C

14.0 C

ND=Not Detected NM=Not Measured

01/31/15

02/28/15

03/28/15

04/25/15

05/29/15

06/27/15

07/25/15

08/29/15

09/26/15

10/31/15

11/28/15

12/26/15

Last rain

Nitrates

0 ppm

Ammonia - nitrogen

0.00 ppm

0.01 ppm

0.00 ppm

0.013 ppm

0.00 ppm

0.05 ppm

0.03 ppm

Dissolved Oxygen

7.2 ppm

7.65 ppm

7.45 ppm

8.0 ppm

7.1 ppm

6.95 ppm

6.7 ppm

6.65 ppm

6.8 ppm

6.9 ppm

6.85 ppm

Phenols

Salinity

36 ppt

35 ppt

34 ppt

33 ppt

35 ppt

37 ppt

38 ppt

Orthophosphates

0.05 ppm

0.053 ppm

0.06 ppm

0.01 ppm

0.00 ppm

0.113 ppm

0.02 ppm

0.063 ppm

0.04 ppm

0.01 ppm

0.05 ppm

0.08 ppm

8.2

8.1

8.2

8.25

8.1

8.2

8.1

8.2

8.25

8.35

Water Temperature

16.0 C

18.0 C

16.0 C

18.0 C

21.0 C

22.0 C

23.0 C

19.5 C

17.0 C

15.0 C

Air Temperature

17.5 C

15.0 C

18.5 C

17.0 C

16.5 C

18.0 C

27.0 C

25.0 C

23.0 C

20.0 C

18.0 C

14.5 C

ND=Not Detected NM=Not Measured

01/25/14

02/23/14

03/29/14

04/26/14

05/31/14

06/28/14

07/26/14

08/30/14

09/27/14

10/25/14

11/23/14

12/27/14

Last rain

04/25/14

Nitrates

0 ppm

Ammonia - nitrogen

0.043 ppm

0.07 ppm

0.063 ppm

0.44 ppm

0.047 ppm

0.08 ppm

0.10 ppm

0.09 ppm

0.10 ppm

0.11 ppm

0.143 ppm

0.007 ppm

Dissolved Oxygen

8.0 ppm

7.8 ppm

7.4 ppm

7.6 ppm

7.2 ppm

7.4 ppm

7.3 ppm

7.2 ppm

7.4 ppm

7.0 ppm

7.14 ppm

7.35 ppm

Phenols

Salinity

36 ppt

35 ppt

36 ppt

35 ppt

33 ppt

34 ppt

33 ppt

35 ppt

36 ppt

Orthophosphates

0.12 ppm

0.087 ppm

0.06 ppm

0.10 ppm

0.013 ppm

0.02 ppm

0.05 ppm

0.07 ppm

0.063 ppm

0.03 ppm

0.05 ppm

8.1

8.0

8.2

8.1

8.2

8.1

8.2

Water Temperature

15.0 C

13.5 C

16.5 C

19.0 C

21.0 C

22.0 C

20.0 C

19.0 C

20.0 C

18.0 C

16.5 C

Air Temperature

19.0 C

16.0 C

16.5 C

14.0 C

19.0 C

22.5 C

22.0 C

20.0 C

21.5 C

18.5 C

15.0 C

ND=Not Detected NM=Not Measured

01/26/13

02/24/13

03/30/13

04/28/13

05/25/13

06/29/13

07/27/13

08/31/13

09/28/13

10/26/13

12/01/13

12/28/13

Last rain

01/26/13

11/22/13

12/19/13

Nitrates

0 ppm

Ammonia - nitrogen

0.17 ppm

0.08 ppm

0.09 ppm

0.19 ppm

0.107 ppm

0.13 ppm

0.19 ppm

0.12 ppm

0.143 ppm

0.19 ppm

0.05 ppm

Dissolved Oxygen

8.0 ppm

7.7 ppm

8.1 ppm

7.2 ppm

7.4 ppm

7.7 ppm

7.1 ppm

7.8 ppm

7.5 ppm

Phenols

Salinity

34 ppt

37 ppt

35 ppt

34 ppt

33 ppt

32 ppt

35 ppt

36 ppt

34 ppt

Orthophosphates

0.077 ppm

0.107 ppm

0.06 ppm

0.08 ppm

0.087 ppm

0.05 ppm

0.07 ppm

0.05 ppm

0.077 ppm

0.083 ppm

0.06 ppm

0.10 ppm

8.1

8.2

8.3

8.2

8.1

8.2

8.1

8.2

8.1

8.2

Water Temperature

14.0 C

13.0 C

15.0 C

16.0 C

19.5 C

19.0 C

20.5 C

19.0 C

16.5 C

16.0 C

14.5 C

Air Temperature

15.0 C

16.0 C

15.0 C

15.5 C

17.5 C

21.0 C

19.5 C

15.0 C

22.0 C

16.5 C

18.5 C

22.5 C

ND=Not Detected NM=Not Measured

01/28/12

02/26/12

03/30/12

04/28/12

05/26/12

06/30/12

07/28/12

08/25/12

09/29/12

10/27/12

11/25/12

12/29/12

Last rain

01/30/12

03/17/12

Nitrates

0 ppm

Ammonia - nitrogen

0.015 ppm

0.03 ppm

0.02 ppm

0.12 ppm

0.16 ppm

0.02 ppm

0.09 ppm

0.127 ppm

0.08 ppm

0.177 ppm

0.117 ppm

0.113 ppm

Dissolved Oxygen

7.9 ppm

7.4 ppm

8.4 ppm

8.1 ppm

6.8 ppm

7.6 ppm

7.7 ppm

6.9 ppm

6.7 ppm

8.1 ppm

7.0 ppm

7.8 ppm

Phenols

Salinity

36 ppt

38 ppt

39 ppt

37 ppt

39 ppt

37 ppt

38 ppt

36 ppt

35 ppt

Orthophosphates

0.06 ppm

0.08 ppm

0.02 ppm

0.083 ppm

0.10 ppm

0.123 ppm

0.053 ppm

0.03 ppm

0.073 ppm

0.07 ppm

0.043 ppm

0.05 ppm

8.4

8.2

8.5

8.3

8.4

8.2

8.5

8.4

8.3

Water Temperature

14.0 C

13.0 C

15.0 C

17.5 C

16.0 C

22.0 C

20.0 C

18.0 C

15.5 C

13.0 C

Air Temperature

20.0 C

14.5 C

13.0 C

18.0 C

15.0 C

18.0 C

18.5 C

21.5 C

23.0 C

19.5 C

13.5 C

12.5 C

ND=Not Detected NM=Not Measured

01/29/11

02/27/11

03/26/11

04/30/11

05/28/11

06/25/11

07/30/11

08/27/11

09/25/11

10/29/11

11/26/11

12/31/11

Last rain

03/25/11

Nitrates

0 ppm

Ammonia - nitrogen

0.103 ppm

0.05 ppm

0.073 ppm

0.113 ppm

0.09 ppm

0.12 ppm

0.13 ppm

0.06 ppm

0.013 ppm

0.037 ppm

0.0 ppm

Dissolved Oxygen

8.0 ppm

6.9 ppm

8.2 ppm

8.0 ppm

7.8 ppm

7,0 ppm

7.2 ppm

7.7 ppm

7.3 ppm

7.1 ppm

7.9 ppm

7.6 ppm

Phenols

Salinity

37 ppt

39 ppt

38 ppt

36 ppt

38 ppt

37 ppt

39 ppt

37 ppt

Orthophosphates

0.083 ppm

0.093 ppm

0.057 ppm

0.00 ppm

0.083 ppm

0.013 ppm

0.097 ppm

0.083 ppm

0.037 ppm

0.06 ppm

8.1

8.3

8.1

8.3

8.4

8.3

8.2

8.3

8.0

8.1

8.0

Water Temperature

13.0 C

14.0 C

15.0 C

17.5 C

18.0 C

18.5 C

17.0 C

15.0 C

13.5 C

Air Temperature

15.0 C

11.5 C

13.0 C

16.0 C

16.5 C

18.0 C

19.0 C

21.5 C

18.0 C

17.0 C

10.5 C

ND=Not Detected NM=Not Measured

01/31/10

02/27/10

03/27/10

04/24/10

05/29/10

06/26/10

07/31/10

08/29/10

09/26/10

10/30/10

11/28/10

12/26/10

Last rain

02/27/10

10/29/10

11/27/10

12/25/10

Nitrates

0 ppm

Ammonia - nitrogen

0.00 ppm

0.03 ppm

0.09 ppm

0.03 ppm

0.05 ppm

0.02 ppm

0.11 ppm

0.09 ppm

0.14 ppm

0.123 ppm

0.16 ppm

0.097 ppm

Dissolved Oxygen

7.7 ppm

8.5 ppm

8.4 ppm

7.6 ppm

7.1 ppm

7.6 ppm

8.3 ppm

8.2 ppm

7.4 ppm

7.6 ppm

8.0 ppm

7.9 ppm

Phenols

Salinity

37 ppt

36 ppt

37 ppt

36 ppt

37 ppt

38 ppt

33 ppt

Orthophosphates

0.04 ppm

0.03 ppm

0.00 ppm

0.07 ppm

0.12 ppm

0.067 ppm

0.087 ppm

0.09 ppm

0.05 ppm

0.127 ppm

0.07 ppm

0.183 ppm

8.0

8.2

8.3

8.7

8.5

8.6

8.5

8.3

8.1

Water Temperature

13.0 C

14.0 C

15.0 C

13.5 C

14.0 C

19.5 C

14.5 C

17.0 C

18.0 C

17.5 C

14.0 C

Air Temperature

17.0 C

18.0 C

17.0 C

15.0 C

17.0 C

16.0 C

18.5 C

24.0 C

17.0 C

14.0 C

ND=Not Detected NM=Not Measured

01/31/09

02/28/09

03/28/09

04/25/09

05/31/09

06/27/09

07/25/09

08/29/09

09/26/09

10/31/09

11/28/09

12/26/09

Last rain

Nitrates

0 ppm

Ammonia - nitrogen

0.00 ppm

0.03 ppm

0.01 ppm

0.00 ppm

0.14 ppm

0.05 ppm

0.09 ppm

0.13 ppm

0.15 ppm

0.04 ppm

0.00 ppm

Dissolved Oxygen

7.7 ppm

8.5 ppm

6.8 ppm

8.1.0 ppm

6.8 ppm

7.9 ppm

8.1 ppm

7.9 ppm

7.4 ppm

8.0 ppm

7.7 ppm

7.8 ppm

Phenols

Salinity

37 ppt

36 ppt

37 ppt

36 ppt

35 ppt

38 ppt

37 ppt

Orthophosphates

0.04 ppm

0.03 ppm

0.00 ppm

0.04 ppm

0.10 ppm

0.07 ppm

0.12 ppm

0.06 ppm

0.03 ppm

0.05 ppm

0.00 ppm

8.0

8.1

8.2

8.3

8.4

8.2

8.3

Water Temperature

13.0 C

14.0 C

13.5 C

14.0 C

16.0 C

16.5 C

20.0 C

17.5 C

20.0 C

18.5 C

16.0 C

14.5 C

Air Temperature

17.0 C

18.0 C

15.5 C

13.0 C

16.5 C

18.0 C

21.0 C

22.0 C

19.5 C

17.5 C

16.0 C

17.5 C

ND=Not Detected NM=Not Measured

01/26/08

02/24/08

03/30/08

04/26/08

05/31/08

06/28/08

07/27/08

08/31/08

09/27/08

10/25/08

11/29/08

12/27/08

Last rain

02/24/08

Nitrates

0 ppm

Ammonia - nitrogen

0.01 ppm

0.02 ppm

0.05 ppm

0.16 ppm

0.01 ppm

0.00 ppm

0.02 ppm

0.08 ppm

0.03 ppm

0.00 ppm

Dissolved Oxygen

8.4 ppm

8.3 ppm

9.2 ppm

10.0 ppm

7.1 ppm

7.5 ppm

7.3 ppm

8.6 ppm

8.0 ppm

7.7 ppm

7.4 ppm

Phenols

Salinity

35 ppt

36 ppt

35 ppt

34 ppt

35 ppt

38 ppt

36 ppt

37 ppt

Orthophosphates

0.01 ppm

0.02 ppm

0.05 ppm

0.16 ppm

0.01 ppm

0.00 ppm

0.02 ppm

0.08 ppm

0.03 ppm

0.00 ppm

8.1

7.9

8.3

8.1

8.0

8.2

8.1

8.3

8.1

8.0

Water Temperature

18.0 C

13.0 C

13.5 C

14.0 C

17.0 C

20.5 C

21.0 C

20.5 C

17.5 C

17.0 C

16.5 C

13.0 C

Air Temperature

19.0 C

15.0 C

13.5 C

19.0 C

16.5 C

19.0 C

22.0 C

23.0 C

17.5 C

20.0 C

17.5 C

13.5 C

ND=Not Detected NM=Not Measured

01/27/07

02/25/07

03/31/07

04/28/07

05/26/07

06/30/07

07/27/07

08/25/07

09/29/07

10/27/07

11/23/07

12/29/07

Last rain

Nitrates

0 ppm

Ammonia - nitrogen

0.08 ppm

0.13 ppm

0.11 ppm

0.25 ppm

0.28 ppm

0.06 ppm

0.09 ppm

0.03 ppm

0.02 ppm

0.00 ppm

Dissolved Oxygen

7.8 ppm

8.3 ppm

7.4 ppm

8.8 ppm

7.9 ppm

7.5 ppm

8.0 ppm

7.7 ppm

8.1 ppm

7.9 ppm

Phenols

Salinity

36 ppt

35 ppt

34 ppt

33 ppt

35 ppt

37 ppt

36 ppt

Orthophosphates

0.03 ppm

0.07 ppm

0.00 ppm

0.02 ppm

0.06 ppm

0.07 ppm

0.06 ppm

0.00 ppm

0.07 ppm

0.02 ppm

0.03 ppm

0.05 ppm

8.2

8.1

8.3

8.2

8.1

8.3

8.1

8.2

8.1

Water Temperature

14.0 C

13.5 C

16.0 C

20.0 C

19.5 C

23.0 C

19.0 C

17.5 C

16.0 C

12.5 C

Air Temperature

13.5 C

12.5 C

15.0 C

15.5 C

20.0 C

21.0 C

20.5 C

18.0 C

16.5 C

17.0 C

12.0 C

ND=Not Detected NM=Not Measured

01/28/06

02/26/06

03/25/06

04/29/06

05/27/06

06/25/06

07/29/06

08/26/06

09/30/06

10/28/06

11/25/06

12/30/06

Last rain

04/26/06

Nitrates

0 ppm

Ammonia - nitrogen

0.05 ppm

0.02 ppm

0.22 ppm

0.06 ppm

0 ppm

0.07 ppm

0.08 ppm

0.00 ppm

0.07 ppm

0.05 ppm

0.06 ppm

Dissolved Oxygen

8.3 ppm

8.8 ppm

10.2 ppm

8.4 ppm

7.8 ppm

6.7 ppm

7.6 ppm

7.4 ppm

7.5 ppm

7.8 ppm

Phenols

Salinity

35 ppt

36 ppt

35 ppt

34 ppt

33 ppt

34 ppt

38 ppt

36 ppt

Orthophosphates

0.01 ppm

0 ppm

0.02 ppm

0.08 ppm

0 ppm

0.10 ppm

0.08 ppm

0.09 ppm

0.03 ppm

0.02 ppm

0.05 ppm

0.12 ppm

8.1

8.2

8.4

8.0

8.2

8.1

Water Temperature

13.0 C

14.0 C

12.0 C

14.5 C

18.0 C

13.0 C

23.0 C

19.5 C

18.0 C

17.0 C

14.5 C

Air Temperature

15.0 C

15.5 C

13.0 C

15.0 C

17.0 C

20.0 C

24.0 C

20.0 C

20.5 C

19.0 C

19.5 C

15.0 C

ND=Not Detected NM=Not Measured

01/30/05

02/27/05

03/27/05

05/01/05

05/28/05

06/25/05

07/24/05

08/28/05

09/25/05

10/29/05

11/26/05

12/31/05

Last rain

04/24/05

12/31/06

Nitrates

0 ppm

Ammonia - nitrogen

0.02 ppm

0.04 ppm

0.05 ppm

0.16 ppm

0.07 ppm

0.14 ppm

0.63 ppm

0.21 ppm

0 ppm

0.04 ppm

0.11 ppm

0 ppm

Dissolved Oxygen

7.6 ppm

7.8 ppm

8.5 ppm

7.4 ppm

7.8 ppm

7.9 ppm

8.3 ppm

7.0 ppm

8.4 ppm

8.2 ppm

7.7 ppm

8.5 ppm

Phenols

Salinity

36 ppt

35 ppt

34 ppt

35 ppt

36 ppt

35 ppt

Orthophosphates

0.00 ppm

0.07 ppm

0.04 ppm

0.05 ppm

0.02 ppm

0.06 ppm

0.03 ppm

0 ppm

0.03 ppm

0.04 ppm

0 ppm

8.1

8.2

8.1

8.3

7.9

8.3

8.2

8.0

Water Temperature

15.0 C

15.5 C

17.5 C

16.0 C

*20.0 C

24.0 C

16.0 C

17.0 C

16.0 C

14.0 C

Air Temperature

17.0 C

15.0 C

18.5 C

15.0 C

17.5 C

18.0 C

22.0 C

23.5 C

19.0 C

17.5 C

16.5 C

13.0 C

ND=Not Detected NM=Not Measured *=Broken thermometer: Water reading taken from Lifeguard station board data

01/31/04

02/07/04

03/27/04

05/02/04

05/30/04

06/26/04

07/24/04

08/28/04

09/26/04

10/30/04

11/27/04

12/26/04

Last rain

Nitrates

0 ppm

Ammonia - nitrogen

0 ppm

0.22 ppm

0.07 ppm

0.14 ppm

0.09 ppm

0.17 ppm

0.00 ppm

0.02 ppm

Dissolved Oxygen

7.6 ppm

8.7 ppm

7.7 ppm

7.8 ppm

7.1 ppm

7.8 ppm

6.8 ppm

8.1 ppm

7.6 ppm

7.4 ppm

7.8 ppm

8.0 ppm

Phenols

Salinity

36 ppt

35 ppt

36 ppt

37 ppt

38 ppt

39 ppt

36 ppt

Orthophosphates

0.00 ppm

0.03 ppm

0.00 ppm

0.03 ppm

0.01 ppm

0.03 ppm

0.00 ppm

0.02 ppm

0.21 ppm

0.04 ppm

0.02 ppm

0.00 ppm

8.0

8.1

8.0

8.1

7.9

8.2

8.3

8.0

8.1

Water Temperature

14.5 C

15.0 C

16.0 C

19.5 C

20.5 C

22.5 C

19.0 C

16.0 C

15.0 C

Air Temperature

13.5 C

18.0 C

17.5 C

21.0 C

20.5 C

19.5 C

22.0 C

19.5 C

17.0 C

15.0 C

ND=Not Detected NM=Not Measured

01/25/03

02/23/03

03/03

04/27/03

05/31/03

06/28/03

07/26/03

08/30/03

09/27/03

10/25/03

11/30/03

01/02/04

Last rain

01/02/04

Nitrates

0 ppm

Ammonia - nitrogen

0 ppm

Dissolved Oxygen

8.4 ppm

8.8 ppm

8.4 ppm

8.8 ppm

8.0 ppm*

7.6 ppm

8.2 ppm

6.6 ppm

7.2 ppm

8.0 ppm

Phenols

Salinity

35 ppt

34 ppt

35 ppt

37 ppt

35 ppt

36 ppt

35 ppt

Orthophosphates

0 ppm

8.3

8.4

8.0

8.1

8.0

8.1

8.0

8.1

Water Temperature

14.5 C

15.0 C

13.0 C

17.0 C

18.5 C

21.5 C

17.0 C

20.0 C

17.5 C

17.0 C

13.5 C

Air Temperature

17.0 C

16.0 C

15.0 C

18.0 C

22.0 C

20.5 C

19.5 C

18.5 C

18.0 C

14.0 C

ND=Not Detected NM=Not Measured
* Cross calibration with SCMI meas. 7.0 ppm

01/26/02

02/24/02

03/30/02

04/28/02

05/31/02

06/28/02

07/25/02

08/23/02

09/28/02

10/10/02

11/30/02

12/28/02

Last rain

01/15/02

05/02/02

08/20/02

09/28/02

11/30/02

Nitrates

0 ppm

Ammonia - nitrogen

0 ppm

Dissolved Oxygen

8.4 ppm

9.0 ppm

9.6 ppm

7.6 ppm

8.0 ppm

7.8 ppm

8.0 ppm

8.6 ppm

8.8 ppm

9.4 ppm

8.8 ppm

Phenols

Salinity

35 ppt

33 ppt

34 ppt

36 ppt

33 ppt

35 ppt

34 ppt

33 ppt

35 ppt

Orthophosphates

0 ppm

7.9

7.8

7.7

8.0

7.8

7.9

8.0

8.4

Water Temperature

14.0 C

13.5 C

14.0 C

16.0 C

19.0 C

21.0 C

18.0 C

17.5 C

15.0 C

14.5 C

Air Temperature

15.0 C

16.5 C

17.5 C

17.0 C

21.5 C

20.5 C

21.5 C

18.5 C

18.0 C

15.0 C

15.5 C

ND=Not Detected NM=Not Measured

01/27/01

02/25/01

03/31/01

04/29/01

05/26/01

06/30/01

07/29/01

08/25/01

09/29/01

10/27/01

11/24/01

12/29/01

Last rain

01/26/01

02/25/01

11/24/01

12/29/01

Nitrates

0 ppm

Ammonia - nitrogen

0 ppm

Dissolved Oxygen

8.4 ppm

8.6 ppm

8.2 ppm

8.4 ppm

9.0 ppm

8.0 ppm

8.2 ppm

8.4 ppm

8.8 ppm

9.2 ppm

Phenols

Salinity

32 ppt

31 ppt

30 ppt

32 ppt

31 ppt

30 ppt

26 ppt

31 ppt

29 ppt

30 ppt

27 ppt

28 ppt

Orthophosphates

0 ppm

7.7

7.8

8.0

7.9

8.0

7.9

7.7

7.9

7.8

Water Temperature

12.0 C

13.0 C

15.0 C

13.5 C

17.5 C

23.5 C

19.0 C

21.0 C

17.5 C

17.0 C

16.5 C

14.0 C

Air Temperature

11.0 C

13.5 C

17.5 C

19.5 C

19.0 C

24.0 C

22.0 C

24.0 C

19.0 C

19.5 C

18.0 C

16.0 C

ND=Not Detected NM=Not Measured

01/29/00

02/27/00

03/25/00

04/30/00

05/27/00

06/24/00

07/30/00

08/26/00

09/30/00

10/28/00

11/25/00

12/30/00

Last rain

02/23/00

03/08/00

10/01/00

12/08/00

Nitrates

0 ppm

Ammonia - nitrogen

0 ppm

Dissolved Oxygen

8.0 ppm

8.4 ppm

8.2 ppm

7.6 ppm

7.8 ppm

7.2 ppm

7.6 ppm

8.2 ppm

Phenols

Salinity

35 ppt

33 ppt

30 ppt

31 PPT

31 ppt

32 ppt

33 ppt

Orthophosphates

0 ppm

7.6

8.0

7.7

8.1

7.8

7.9

7.8

7.9

7.7

7.9

7.8

Water Temperature

14.0 C

15.0 C

14.0 C

17.0 C

20.0 C

20.5 C

18.0 C

15.5 C

14.0 C

Air Temperature

14.5 C

18.0 C

16.0 C

19.0 C

21.0 C

22.0 C

26.5 C

22.0

17.0 C

15.5 C

16.5 C

ND=Not Detected NM=Not Measured

01/30/99

02/28/99

03/27/99

04/25/99

05/29/99

06/27/99

07/31/99

08/28/99

09/26/99

10/31/99

11/28/99

12/26/99

Last rain

1/26/99

12/30/99

Nitrates

0 ppm

Ammonia - nitrogen

0 ppm

0.15 ppm

0 ppm

0.10 ppm

0 ppm

Dissolved Oxygen

7.6 ppm

8.2 ppm

7.4 ppm

7.2 ppm

8.0 ppm

7.2 ppm

8.4 ppm

9.0 ppm

8.0 ppm

Phenols

Salinity

36 ppt

35 ppt

36 ppt

35 ppt

34 ppt

33 ppt

34 ppt

33 ppt

Orthophosphates

0 ppm

0.10 ppm

0 ppm

7.7

8.2

7.8

8.0

7.8

7.9

7.8

8.0

7.6

7.7

7.9

7.7

Water Temperature

13.0 C

15.0 C

14.5 C

15.5 C

16.0 C

19.0 C

17.0 C

16.5 C

15.0 C

14.5 C

Air Temperature

23.5 C

19.5 C

20.0 C

27.0 C

20.0 C

19.0 C

18.0 C

16.0 C

ND=Not Detected NM=Not Measured

04/26/98

05/30/98

06/28/98

07/26/98

08/29/98

09/26/98

10/31/98

11/29/98

12/27/98

Last rain

6/11/98

12/20/98

Nitrates

0 ppm

Ammonia - nitrogen

0 ppm

0.2 ppm

0 ppm

Dissolved Oxygen

5.0 ppm

8.0

6.0

7.4 ppm

7.2 ppm

6.6 ppm

7.6 ppm

Phenols

Salinity

32 ppt

Orthophosphates

0 ppm

7.9

7.8

7.9

7.8

8.1

7.6

Water Temperature

NMC

17.0 C

16.5 C

19.0 C

20.5 C

19.0 C

15.0 C

12.5 C

Air Temperature

30.0 C

ND=Not Detected NM=Not Measured

Open Drain Condition	Blocked Drain Condition
East Side View	West Side View
Staging area	Out to Ocean

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