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Robinson, A.; Slotton, D. G.; Lowe, S.; Davis, J. A. 2014. North Bay Mercury Biosentinel Project (December 2014 Report). SFEI Contribution No. 738. San Francisco Estuary Institute: Richmond, CA.
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Grieb, T.; Roy, S.; Rath, J.; Stewart, R.; Sun, J.; Davis, J. A. 2018. North Bay Selenium Monitoring Design. SFEI Contribution No. 921. San Francisco Estuary Institute : Richmond, CA.
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Greenfield, B. K.; Davis, J. A. 2004. A PAH Fate Model for San Francisco Bay. Chemosphere . SFEI Contribution No. 114.
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Davis, J. A. 2002. A PCB Budget for San Francisco Bay. SFEI Contribution No. 376. San Francisco Estuary Institute: Oakland, CA.
Leatherbarrow, J. E.; Yee, D.; Davis, J. A. 2001. PCBs in effluent. SFEI Contribution No. 237.
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Sutton, R.; Sedlak, M.; Davis, J. A. 2014. Polybrominated Diphenyl Ethers (PBDEs) in San Francisco Bay: A Summary of Occurrence and Trends. SFEI Contribution No. 713. San Francisco Estuary Institute: Richmond, CA. p 62.
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Oram, J. J.; McKee, L. J. .; Davis, J. A.; Hetzel, F. 2007. Polychlorinated biphenyls (PCBs) in San Francisco Bay. Environmental Research 105, 67-86 . SFEI Contribution No. 526.
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Gunther, A. J.; O'Connor, J. M.; Davis, J. A. 1992. Priority pollutant loads from effluent discharges to the San Francisco Estuary. Water Environment Research 64, 134-140 . SFEI Contribution No. 171.
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Davis, J. A. 2005. Regional Monitoring Program for Trace Substances in the San Francisco Estuary 2005 Program Plan. SFEI Contribution No. 389. San Francisco Estuary Institute: Oakland. p 16.
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Trowbridge, P. R.; Davis, J. A.; Mumley, T.; Taberski, K.; Feger, N.; Valiela, L.; Ervin, J.; Arsem, N.; Olivieri, A.; Carroll, P.; et al. 2016. The Regional Monitoring Program for Water Quality in San Francisco Bay, California, USA: Science in support of managing water quality. Regional Studies in Marine Science 4.

The Regional Monitoring Program for Water Quality in San Francisco Bay (RMP) is a novel partnership between regulatory agencies and the regulated community to provide the scientific foundation to manage water quality in the largest Pacific estuary in the Americas. The RMP monitors water quality, sediment quality and bioaccumulation of priority pollutants in fish, bivalves and birds. To improve monitoring measurements or the interpretation of data, the RMP also regularly funds special studies. The success of the RMP stems from collaborative governance, clear objectives, and long-term institutional and monetary commitments. Over the past 22 years, high quality data and special studies from the RMP have guided dozens of important decisions about Bay water quality management. Moreover, the governing structure and the collaborative nature of the RMP have created an environment that allowed it to stay relevant as new issues emerged. With diverse participation, a foundation in scientific principles and a continual commitment to adaptation, the RMP is a model water quality monitoring program. This paper describes the characteristics of the RMP that have allowed it to grow and adapt over two decades and some of the ways in which it has influenced water quality management decisions for this important ecosystem.

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Hunt, J.; Trowbridge, P.; Yee, D.; Franz, A.; Davis, J. 2016. Sampling and Analysis Plan for 2016 RMP Status and Trends Bird Egg Monitoring. SFEI Contribution No. 827. San Francisco Estuary Institute: Richmond, CA. p 31 pp.
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Foley, M. M.; Davis, J. A.; Buzby, N. 2024. Selenium Concentrations in Water and Clams in North San Francisco Bay, 2019-2020. SFEI Contribution No. 1116. San Francisco Estuary Institute: Richmond, CA.

The Regional Monitoring Program for Water Quality in San Francisco Bay (RMP) started implementing a new design for North Bay selenium (Se) sampling in 2019 after a long-term USGS program was terminated in 2017. To determine if the RMP sampling and analysis methods are producing similar results to the USGS study, we compared Se concentrations and stable isotope values in clams at two stations in Suisun Bay, California, that were sampled by the USGS long-term monitoring program from 1995-2010 and the RMP in 2019-2020. We also compared Se concentrations in water (dissolved and particulate) from the RMP Status and Trends sampling in Suisun Bay (1993-2019) to the samples collected as part of this study. 

Spatial patterns in clam Se concentrations between the USGS and RMP studies were similar, with lower concentrations at Station 4.1 (Suisun Bay) than at Station 8.1 (Carquinez Strait). Se concentrations at both stations were consistently lower for the RMP samples than those reported in the long-term USGS dataset. Stable isotope values for δ13C and δ15N were similar for the USGS and RMP samples with δ13C and δ15N more enriched at Station 8.1 than 4.1. However, there was not close alignment of the RMP samples to the USGS long-term average, particularly at Station 8.1. Average dissolved Se concentrations in water were consistently lower than the long-term average at Station 4.1 and similar to or above the long-term RMP Status and Trends (S&T) average at Station 8.1. Particulate Se concentrations at Stations 4.1 and 8.1 were nearly one-third of the long-term S&T average in Suisun Bay, likely due to a change in methods for calculating particulate Se. 

Additional information is needed to evaluate whether the lower Se concentrations measured in clams as part of the RMP study could be suggestive of declining Se concentrations in North Bay clams between 2010 and 2019 or an artifact of the new analytical lab. Additional data from samples collected by the USGS from 2011-2017 should be examined to fill the gap between the datasets. Continued RMP monitoring will also be valuable in evaluating long-term trends.


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Sun, J.; Davis, J. A.; Stewart, R.; Palace, V. 2019. Selenium in White Sturgeon from North San Francisco Bay: The 2015-2017 Sturgeon Derby Study. SFEI Contribution No. 897. San Francisco Estuary Institute: Richmond, CA.

This report presents the findings from a study evaluating selenium concentrations in white sturgeon (Acipenser transmontanus) tissues collected during the 2015-2017 Sturgeon Derby events in North San Francisco Bay. The goal of this study was to investigate the distribution of selenium among sturgeon tissues to inform the toxicological and regulatory interpretation of selenium measured in non-lethally collected tissues, including muscle plugs and fin rays. This technical report provides documentation of the study and presents its major findings.

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Greenfield, B. K.; Davis, J. A. 2004. A Simple Mass Balance Model for PAH Fate in the San Francisco Estuary. SFEI Contribution No. 115. San Francisco Estuary Institute: Oakland, CA.
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Oram, J. J.; McKee, L. J. .; Davis, J. A.; Sedlak, M.; Yee, D. 2008. Sources, Pathways and Loadings Workgroup: Five-Year Workplan (2008-12). SFEI Contribution No. 567. San Francisco Estuary Institute: Oakland.
Davis, J. A.; Connor, M. S.; Flegal, A. R.; Conaway, C. H. 2007. Sources, transport, fate and toxicity of pollutants in the San Francisco Bay estuary. Environmental Research : A Multidisciplinary Journal of Environmental Sciences, Ecology and Public Health 105, 1-4.
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Connor, M. S.; Davis, J. A. 2008. The State of San Francisco Bay: Water Quality. National Water Quality Monitoring Conference.
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Davis, J. A.; Yoon, J. 1999. Technical Report of the Chlorinated Hydrocarbon Workgroup. San Francisco Estuary Institute: Richmond, CA.
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Davis, J. A.; Gunther, A. J.; Abu-Saba, K. E. 2001. Technical Report of the Sources, Pathways, and Loadings Workgroup. SFEI Contribution No. 266. San Francisco Estuary Institute: Richmond, CA.
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Greenfield, B. K.; Davis, J. A.; Collins, J. N.; Grenier, J. Letitia. 2002. The tidal marsh food web. SFEI Contribution No. 472. University of California: Berkeley, CA. p 12 pp.
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