1

Small Tributaries Small Tributaries Loading Study #2: Loading Study #2:

Zone 4 Line A, Cabot Blvd. Zone 4 Line A, Cabot Blvd. HaywardHayward

Lester McKeeLester McKee

Sources Pathways and Loadings Sources Pathways and Loadings WorkgroupWorkgroup

December 12December 12thth 2007 2007

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San Francisco Estuary Institute

2

LaboratoriesLaboratories

Moss Landing Marine Labs (MLML)Moss Landing Marine Labs (MLML)

AXYS Analytical Services Ltd.AXYS Analytical Services Ltd.

Applied Marine Sciences, TexasApplied Marine Sciences, Texas

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San Francisco Estuary Institute

3

Data Inventory for the Data Inventory for the SeasonSeason

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Samples

Collected

FieldDuplicat

es

DataReceive

d

Data QAQC

Checked

HgT 40 4* All No

HgD 20 2 All No

MeHgT 20 2 All No

MeHgD 20 2 All No

PCBs 20 2** All No

PBDEs 20 2** All No

OC Pesticides (DDT, chlordane, dieldrin) 7 1 All No

PAHs 7 1 All No

Trace Elements (Ag, Al, As, Cd, Cr, Cu, Mn, Ni, Pb, Se, Zn) 21 2 All No

SSC 120 2*** All No

Organic carbon (DOC, POC) 16 0 All No*One was a comparison between the ISCO and the D95**One broken during shipping*** Simultaneous samples (ISCO/D95) not yet inventoried

San Francisco Estuary Institute

4

Summary Statistics Summary Statistics (Mercury)(Mercury)

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San Francisco Estuary Institute

HgT(ng/L)

HgD(ng/L)

HgP(ng/L)

HgP(% HgT)

HgP(mg/kg)

MeHgT(ng/L)

MeHgD(ng/L)

MeHgP(ng/L)

MeHgP(% MeHgT)

Min 1.9 0.8 8.7 73 0.038 0.081 0.021 0.053 52

Max 55 5.1 52 95 0.44 0.56 0.11 0.48 96

5

Summary Statistics (Trace Summary Statistics (Trace Elements)Elements)

(ug/L)

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San Francisco Estuary Institute

Ag Al As Cd Cr Cu Mn Ni Pb Se Zn

Min 0.02 82.5 0.66 0.04 0.98 3.24 11.1 3.26 0.56 <MDL 7.45

Max 0.08 4,491 2.38 0.42 39.2 27.6 192 49 22.2 1.17 181

6

Summary Statistics Summary Statistics (Organics)(Organics)

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San Francisco Estuary Institute

DOC (mg/L)

POC (mg/L)

Sum of PCBs (SFEI) (pg/L)

Sum of PBDEs (SFEI) (pg/L)

Sum of PAHs (SFEI) (pg/L)

Sum of DDT

(SFEI) (pg/L)

Sum ofChlordane

(SFEI)(pg/L)

Dieldrin(pg/L)

3.2 0.1 388 2,824 1,373 7,420 3,466 711

12 4.7 46,027 141,218 19,668 59,480 16,400 4,590

7

Z4LA scatter plotsZ4LA scatter plots

y = 0.0002x + 0.015

R2 = 0.6476

00.010.020.030.040.050.060.070.080.09

0.1

0 100 200 300 400

SSC (mg/L)

Ag

(u

g/L

)

0

0.5

1

1.5

2

2.5

0 100 200 300 400

SSC (mg/L)

As

(ug

/L)

y = 0.001x + 0.1085

R2 = 0.6114

00.05

0.10.15

0.20.25

0.30.35

0.40.45

0.5

0 100 200 300 400

SSC (mg/L)

Cd

(u

g/L

)

San Francisco Estuary Institute

0

5

10

15

20

25

30

35

40

45

0 100 200 300 400

SSC (mg/L)

Cr

(ug

/L)

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8

Z4LA scatter plots Z4LA scatter plots (cont.)(cont.)

y = 0.0555x + 9.3549

R2 = 0.5083

0

5

10

15

20

25

30

0 400

SSC (mg/L)

Cu

(u

g/L

)

0

10

20

30

40

50

60

0 50 100 150 200 250 300 350 400

SSC (mg/L)

Ni (

ug

/L)

y = 0.0555x + 3.7401

R2 = 0.6974

0

5

10

15

20

25

0 100 200 300 400

SSC (mg/L)

Pb

(u

g/L

)

San Francisco Estuary Institute

y = 0.14x + 11.108

R2 = 0.6629

0

10

20

30

40

50

60

0 400

SSC (mg/L)

Hg

T (

ug

/L)

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9 San Francisco Estuary Institute

Z4LA scatter plots Z4LA scatter plots (cont.)(cont.)

0

0.1

0.2

0.3

0.4

0.5

0.6

0 100 200 300 400

SSC (mg/L)

Me

Hg

T (

ug

/L)

y = 132.83x

R2 = 0.846

0

5000

10000

15000

20000

25000

30000

35000

40000

0 100 200 300 400

SSC (mg/L)

PC

B (

pg

/L)

y = 419.06x

R2 = 0.6654

0

20000

40000

60000

80000

100000

120000

140000

160000

0 100 200 300 400

SSC (mg/L)

PB

DE

(p

g/L

)

y = 85.384x + 33.443

R2 = 0.8462

0

2000

4000

6000

8000

10000

12000

14000

0 100 200 300 400

SSC (mg/L)

PA

H (

pg

/L)

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10

Preliminary Loads Preliminary Loads AnalysisAnalysis

San Francisco Estuary Institute

Z4LA (WY 2007) Cd Cu Pb HgT PCB PBDE PAH

Load (g) 105 7,073 4,994 13 9 27 6

Export (ug/m2) 23 1,572 1,110 2.9 1.9 6.1 1.2

Guadalupe R (WY 2005)

Load (g) 6,000 471,000 366,000 8,000 700 1,750 -

Export (ug/m2) 25 1,996 1,551 34 3 7 -

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Sampling Plan for WY Sampling Plan for WY 20082008

San Francisco Estuary Institute

  AXYS MLML AMS Texas

Number      

PCB analysis 32    

PBDE analysis 8    

OC pest analysis 8    

PAH analysis 8    

Pytethroids 8    

HgT   40  

HgD   20  

MeHgT   20  

MeHgD   20  

TMs   20  

SSC   120  

Suspended Sediment density   20  

DOC     32

POC     32

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August 23, 2007August 23, 2007

13

September 28, 2007September 28, 2007

14

October 10October 10thth, 2007, 2007

15

October October 1414thth, 2007, 2007

16

November 9November 9thth, 2007, 2007