Presentation is loading. Please wait.

Presentation is loading. Please wait.

Draft data - do not cite or quote Sediment contamination Sediment toxicity Benthic community structure Results used to identify and map areas of unimpacted.

Published byBrandon Barker Modified over 10 years ago

Similar presentations

Presentation on theme: "Draft data - do not cite or quote Sediment contamination Sediment toxicity Benthic community structure Results used to identify and map areas of unimpacted."— Presentation transcript:

1 Draft data - do not cite or quote Sediment contamination Sediment toxicity Benthic community structure Results used to identify and map areas of unimpacted to clearly impacted sediments Current RMP toxicity tests are those recommended for the accepted statewide SQO methods for bays and estuaries, EXCEPT… Sediment Quality Assessment Toxicity test data used in a weight-of-evidence:

2 Draft data - do not cite or quote Excerpt from SQO Staff Report - Table 5.2 List of candidate sediment toxicity tests The SQO recommends the use of sediment water interface (SWI) samples

3 Draft data - do not cite or quote Mussel embryo development 48-h exposure Sublethal endpoint Sediment elutriate VS. Sediment-water interface exposure

4 Draft data - do not cite or quote In April-08 the TRC decided that the RMP S&T will adopt the sediment-water interface (SWI) bivalve test in 2008 using intact sediment cores.

5 Draft data - do not cite or quote Issues Considered Comparison to historic RMP/other programs Interpretation (Ecological Relevance) Cost

6 Draft data - do not cite or quote Comparison to historic RMP data 1999 - 2001 Bivalve Methods Study 48-hr. sublethal development test Elutriate (1:4 dil. VS. SWI intact cores) 14 stations (52 samples).

7 Draft data - do not cite or quote Rivers Grizzly Bay Napa River Davis Point Coyote Creek San Bruno Shoal Horseshoe Bay Redwood Creek South Bay RMP 1999-2001 Elutriate & SWI bivalve development tests (N=52) Yerba Buena Is Red Rock Alameda San Jose (LEMP)

8 Draft data - do not cite or quote Rivers Grizzly Bay Napa River Davis Point Redwood Creek Yerba Buena Island Horseshoe Bay Coyote Creek San Jose Legend: Amphipod and Bivalve Sediment Toxicity Results 1993-2001 (BF21) Pulse of the Estuary, 2003 South Bay (BA21)

9 Draft data - do not cite or quote Interpretation SWI tests are thought to be more ecologically relevant However, not much in known about contaminant flux and exposure SCCWRP study (4 samples) to determine if homogenized sediments can be left to equilibrate and used in the SWI test.

10 Draft data - do not cite or quote Current Status RMP S&T 2008 will switch to collecting intact cores for the SWI bivalve development test to be comparable to recommended SQO methods that have been endorsed by a panel of national experts This will result in a NEW toxicity measure and will not be comparable with historic RMP data (largely an issue in Suisun Bay & Lower South Bay Regions)

11 Draft data - do not cite or quote Question for EEPS Should the RMP continue the bivalve elutriate tests in Suisun Bay and Lower South Bay Regions? + evaluate chemistry in the overlying water of both tests to begin to understand differences in contaminant exposure between intact cores and homogenized sediment elutriates

12 Draft data - do not cite or quote Rivers Grizzly Bay Napa River Davis Point Coyote Creek San Bruno Shoal Horseshoe Bay Redwood Creek South Bay RMP 1999-2001 Elutriate & SWI bivalve development tests (N=52) Yerba Buena Is Red Rock Alameda San Jose (LEMP)

13 Draft data - do not cite or quote Cost

14 Draft data - do not cite or quote Cost $20 more per sample

Download ppt "Draft data - do not cite or quote Sediment contamination Sediment toxicity Benthic community structure Results used to identify and map areas of unimpacted."

Similar presentations

EMAP Efforts in SF Bay Overview of EMAP Western Pilot Overview of Coastal component Activities in SF Bay (FY 2000) Relationship to other SF Bay efforts.

EMAP Efforts in SF Bay Overview of EMAP Western Pilot Overview of Coastal component Activities in SF Bay (FY 2000) Relationship to other SF Bay efforts.
AN OVERVIEW Jay A. Davis San Francisco Estuary Institute.

AN OVERVIEW Jay A. Davis San Francisco Estuary Institute.
Exposure & Effects Pilot Study (EEPS) RMP Objective #4 RMP Objective #4 Measure pollution exposure and effects on selected parts of the Estuary ecosystem.

Exposure & Effects Pilot Study (EEPS) RMP Objective #4 RMP Objective #4 Measure pollution exposure and effects on selected parts of the Estuary ecosystem.
4.26 CEP/RMP Sediment Core Plan Draft & Comments CFWG Sept 2005.

4.26 CEP/RMP Sediment Core Plan Draft & Comments CFWG Sept 2005.
BACKGROUND AND STATUS of RMP SEDIMENT STUDIES RMP EEWG MEETING September 6, 2007.

BACKGROUND AND STATUS of RMP SEDIMENT STUDIES RMP EEWG MEETING September 6, 2007.
2005 Workplan: Data Integration Journal manuscript submitted on OC pesticide mass budget Final report on multibox PCB model 1.0 Journal manuscript submitted.

2005 Workplan: Data Integration Journal manuscript submitted on OC pesticide mass budget Final report on multibox PCB model 1.0 Journal manuscript submitted.
Item #6b 1 Towards a Bay Area Watershed Model Presented to the SPLWG May 14, 2008 John Oram & Lester McKee.

Item #6b 1 Towards a Bay Area Watershed Model Presented to the SPLWG May 14, 2008 John Oram & Lester McKee.
RMP PROPOSAL SQO BENTHIC DEMONSTRATION Bruce Thompson and Sarah Lowe San Francisco Estuary Institute.

RMP PROPOSAL SQO BENTHIC DEMONSTRATION Bruce Thompson and Sarah Lowe San Francisco Estuary Institute.
Prioritized Sites for Amphipod TIE Study Identify 12 potentially toxic inter-tidal sites Sample four sites at a time to find two suitable sites for amphipod.

Prioritized Sites for Amphipod TIE Study Identify 12 potentially toxic inter-tidal sites Sample four sites at a time to find two suitable sites for amphipod.
Draft data - do not cite or quote EEPS Benthos 2008 1.RMP Status & Trends sediment monitoring added benthos at 27 stations in 2008 for implementing SQO.

Draft data - do not cite or quote EEPS Benthos RMP Status & Trends sediment monitoring added benthos at 27 stations in 2008 for implementing SQO.
RMP BENTHIC ASSESSMENT WORKSHOP Tuesday, May 23rd, 2006, 9:30 am – 4:00 pm Elihu Harris State Building, Room 9, 1515 Clay Street, Oakland, California.

RMP BENTHIC ASSESSMENT WORKSHOP Tuesday, May 23rd, 2006, 9:30 am – 4:00 pm Elihu Harris State Building, Room 9, 1515 Clay Street, Oakland, California.
Co-Project Managers Eisenberg, Olivieri & Associates Tom Hall, Eisenberg, Olivieri & Associates, Larry Walker Associates Tom Grovhoug, Larry Walker Associates.

Co-Project Managers Eisenberg, Olivieri & Associates Tom Hall, Eisenberg, Olivieri & Associates, Larry Walker Associates Tom Grovhoug, Larry Walker Associates.
Dredge Data Evaluation TRC Meeting March 15 2005 Don Yee.

Dredge Data Evaluation TRC Meeting March Don Yee.
Ambient Water Toxicity in San Francisco Bay: 1993-2002 Dr. Scott Ogle, Pacific EcoRisk Dr. Andrew Gunther, Applied Marine Sciences Paul Salop, David Bell,

Ambient Water Toxicity in San Francisco Bay: Dr. Scott Ogle, Pacific EcoRisk Dr. Andrew Gunther, Applied Marine Sciences Paul Salop, David Bell,
Exposure and Effects Workgroup Study Ideas 2010. Five-Year Plan: Risk to Birds Is there clear evidence of pollutant effects on survival, reproduction,

Exposure and Effects Workgroup Study Ideas Five-Year Plan: Risk to Birds Is there clear evidence of pollutant effects on survival, reproduction,
Draft data - do not cite or quote Outline Management context Management context RMP objectives RMP objectives Specific questions for the next five years.

Draft data - do not cite or quote Outline Management context Management context RMP objectives RMP objectives Specific questions for the next five years.
CHALLENGES OF USING BENTHIC ASSESSMENTS IN SAN FRANCISCO ESTUARY Bruce Thompson and Sarah Lowe San Francisco Estuary Institute.

CHALLENGES OF USING BENTHIC ASSESSMENTS IN SAN FRANCISCO ESTUARY Bruce Thompson and Sarah Lowe San Francisco Estuary Institute.
Agenda Item 3 Causes of Toxicity 2007-2008 Amphipod TIE Study UC Davis - Granite Canyon Marine Pollution Studies Laboratory SFEI.

Agenda Item 3 Causes of Toxicity Amphipod TIE Study UC Davis - Granite Canyon Marine Pollution Studies Laboratory SFEI.
Draft Data - do not cite or quote Outline Management context Management context RMP objectives RMP objectives Specific questions for the next five years.

Draft Data - do not cite or quote Outline Management context Management context RMP objectives RMP objectives Specific questions for the next five years.
Exposure & Effects Pilot Study (EEPS) RMP Objective #4 Measure pollution exposure and effects on selected parts of the Estuary ecosystem (including humans)

Exposure & Effects Pilot Study (EEPS) RMP Objective #4 Measure pollution exposure and effects on selected parts of the Estuary ecosystem (including humans)

Similar presentations

Ads by Google