1 Small Tributaries Loading Study #2: Zone 4 Line A, Cabot Blvd. Hayward Lester McKee Sources Pathways and Loadings Workgroup December 12 th 2007 Item.

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Presentation transcript:

1 Small Tributaries Loading Study #2: Zone 4 Line A, Cabot Blvd. Hayward Lester McKee Sources Pathways and Loadings Workgroup December 12 th 2007 Item #3b San Francisco Estuary Institute

2 Laboratories Moss Landing Marine Labs (MLML) Moss Landing Marine Labs (MLML) AXYS Analytical Services Ltd. AXYS Analytical Services Ltd. Applied Marine Sciences, Texas Applied Marine Sciences, Texas Item #3b San Francisco Estuary Institute

3 Data Inventory for the Season Item #3b Samples Collected Field Duplicates Data Received Data QAQC Checked HgT40 4*AllNo HgD202AllNo MeHgT202AllNo MeHgD202AllNo PCBs20 2**AllNo PBDEs20 2**AllNo OC Pesticides (DDT, chlordane, dieldrin) 71AllNo PAHs71AllNo Trace Elements (Ag, Al, As, Cd, Cr, Cu, Mn, Ni, Pb, Se, Zn) 212AllNo SSC120 2***AllNo Organic carbon (DOC, POC)160AllNo *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 (Mercury) Item #3b 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 Max

5 Summary Statistics (Trace Elements) Summary Statistics (Trace Elements) (ug/L) Item #3b San Francisco Estuary Institute AgAlAsCdCrCuMnNiPbSeZn Min <MDL7.45 Max0.084,

6 Summary Statistics (Organics) Item #3b 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 of Chlordane (SFEI) (pg/L) Dieldrin (pg/L) ,8241,3737,4203, ,027141,21819,66859,48016,4004,590

7 Z4LA scatter plots San Francisco Estuary Institute Item #3b

8 Z4LA scatter plots (cont.) San Francisco Estuary Institute Item #3b

9 San Francisco Estuary Institute Z4LA scatter plots (cont.) Item #3b

10 Preliminary Loads Analysis San Francisco Estuary Institute Z4LA (WY 2007)CdCuPbHgTPCBPBDEPAH Load (g)1057,0734, Export (ug/m2)231,5721, Guadalupe R (WY 2005) Load (g)6,000471,000366,0008, ,750- Export (ug/m2) 251,9961, Item #3b

11 Sampling Plan for WY 2008 San Francisco Estuary Institute AXYSMLMLAMS Texas Number PCB analysis32 PBDE analysis8 OC pest analysis8 PAH analysis8 Pytethroids8 HgT 40 HgD 20 MeHgT 20 MeHgD 20 TMs 20 SSC 120 Suspended Sediment density 20 DOC 32 POC 32 Item #3b

12 August 23, 2007

13 September 28, 2007

14 October 10 th, 2007

15 October 14 th, 2007

16 November 9 th, 2007