Technical Reference Library - Catalog

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Returned 13 results with the keyword "lower South San Francisco Bay":

  1.    Santa Clara Valley Urban Runoff Program, Metals Control Measures Plan and Evaluation of Nine Metals of Concern, Volume I, February 1997

    Report provides estimates of sources for mercury, copper, nickel, silver, lead zinc, and selenium in storm water runoff, dry creek flow, and wastewater treatment plant discharges to lower South San Francisco Bay from the Santa Clara Valley. Includes quantitative estimates of the total quantity of copper released annually to lower South San Francisco Bay and a pie chart of sources. Available on the Internet: www.city.palo-alto.ca.us/cleanbay/pdf/mcm.pdf

    watershed, bay, copper-general, lower South San Francisco Bay
  2.    URS Greiner Woodward Clyde and Tetra Tech, Inc. Copper and Nickel Source Characterization Report, prepared for the City of San Jose, 1998

    Initial estimate of copper inputs to lower South San Francisco Bay. "Sources" included wastewater treatment plant discharges, creek flows, atmospheric deposition, and sediment exchange. (Caution: The information in this report is superceded by revised data in the Conceptual Model Report for Copper and Nickel in Lower South San Francisco Bay, December 1999).

    copper-general, lower South San Francisco Bay
  3.    Tetra Tech, Inc. Conceptual Model Report for Copper and Nickel in Lower South San Francisco Bay, Final Report, December 1999

    Presents a conceptual model for copper and nickel concentrations in lower South San Francisco Bay. Includes estimates of copper inputs and inventories in the Bay, descriptions of the processes thought to be most important to controlling copper cycling, and discussion of the effects of copper on the uptake and toxicity to aquatic organisms. This model was a key element of the copper total maximum daily load (TMDL) for lower South San Francisco Bay. Available on the Internet: www.sanjoseca.gov/esd/pub_res.asp

    fate, sediments-water, chemistry, copper-general, copper-toxicity, model-water, dissolved, particulate, lower South San Francisco Bay
  4.    Tetra Tech, Inc.; Ross & Associates; EOA, Inc. Copper Action Plan, Final Report, June 2000 (updated February 2001)

    Copper management plan for the lower South San Francisco Bay.The plan lists actions to be taken (primarily by local government agencies) that have the potential to reduce copper concentrations in lower South San Francisco Bay. There are three tables of copper control actions: Baseline, Phase I, and Phase II. Baseline actions (intended to be implemented immediately) reference participation in the Brake Pad Partnership. The plan includes specific copper concentrations that, if measured in lower South San Francisco Bay, would trigger Phase I or Phase II actions. Phase I actions reference unidentified further actions to reduce copper releases from vehicle brake pads.Subsequent to completion of the Copper Action Plan, most of its elements have been adopted into water quality permits for the municipal wastewater and storm water discharges to lower South San Francisco Bay. Available on the Internet: www.ci.san-jose.ca.us/esd/pub_res.htm

    copper-general, copper-brake, copper-road, copper-standards, lower South San Francisco Bay
  5.    Looker, R., San Francisco Bay Regional Water Quality Control Board, Staff Report on Proposed Site-Specific Water Quality Objectives and Water Quality Attainment Strategy for Copper and Nickel for San Francisco Bay South of the Dumbarton Bridge, Final Staff Report, May 15, 2002

    This 53-page report provides the most complete and succinct summary currently available about the copper and nickel water quality problems in lower South San Francisco Bay. The report describes the solutions to those problems adopted by the San Francisco Bay Regional Water Quality Control Board (the regulatory agency responsible for protecting water quality in San Francisco Bay), which include adjustment of the water quality objectives (standards) and a monitoring and action plan to ensure that copper and nickel concentrations do not increase to unacceptable levels. Includes as attachments the staff summary report and related documentation presented to the Regional Water Quality Control Board when it approved the report.A draft version of this report (which is very similar to the final) is available on the Internet: www.swrcb.ca.gov/rwqcb2/Download.htm

    copper-general, copper-standards, copper-toxicity, model-water, dissolved, particulate, lower South San Francisco Bay
  6.    Woodward-Clyde Consultants, Contribution of Heavy Metals to Storm Water From Automotive Disc Brake Pad Wear, prepared for the Santa Clara Valley Nonpoint Source Pollution Control Program, October 1994

    First attempt to make a quantitative estimate of metals released annually to lower South San Francisco Bay from light-duty motor vehicle brake pads.Estimates involved measuring copper content of certain light duty vehicle pads and making very simplified estimates of annual release and copper transport to the Bay. (Caution: Subsequent cooperative communications with brake pad manufacturers identified some fundamental errors in the calculation method used in this report.) Available on the Internet: www.city.palo-alto.ca.us/cleanbay/pdf/brake.pdf

    watershed, bay, copper-brake, lower South San Francisco Bay
  7.    Engberg, C. The Regulation and Manufacture of Brake Pads: The Feasibility of Reformulation to Reduce the Copper Load to the San Francisco Bay, prepared for the Palo Alto Regional Water Quality Control Plant, July 1995

    Evaluation of regulatory options available to require reduction in copper releases from vehicle brake pads. Recommends a voluntary pollution prevention program be attempted.Available on the Internet: www.city.palo-alto.ca.us/cleanbay/pdf/brkrpt.pdf

    copper-brake, lower South San Francisco Bay
  8.    Hornberger, M. I.; Luoma, S. N.; Cain, D. J.; Parchaso, F.; Brown, C. L.; Bouse, R. M.; Wellise, C.; Thompson, J. K. "Linkage of Bioaccumulation and Biological Effects to Changes in Pollutant Loads in South San Francisco Bay," Environmental Science & Technology, 2000, Vol. 12, pp. 2401-2409.

    Presents data from monitoring metals concentrations in clams exposed to both discharge from the Palo Alto Regional Water Quality Control Plan and urban runoff from the Palo Alto, California area. Documents correlation between declining quantities of copper and silver in sewage treatment plant effluent and copper and silver concentrations in clams. Elevated concentrations of copper and silver prevented clam reproduction in the 1970's and 1980s; reproduction recovered as metal concentration declined. Inputs from urban runoff controlled zinc levels in the clams during the same time period.

    bay, sediments-water, copper-toxicity, USGS, lower South San Francisco Bay
  9.    Kuwabara, J. S.; Chang, C. C. Y.; Khechfe, A. I.; Hunter, Y. R. "Importance of Dissolved Sulfides and Organic Substances in Controlling the Chemical Speciation of Heavy Metals in San Francisco Bay," in Hollibaugh, J. T., ed. San Francisco Bay—The Ecosystem, AAAS, 1995.

    Describes the chemical processes that control bioavailability of metals like copper in San Francisco Bay. Documents how sulfides in sediments (as well as dissolved organic substances) play a role in controlling speciation of copper in San Francisco Bay.Presents initial benthic flux (release of copper from sediments) measurement for dissolved copper.

    bay, fate, sediments-water, chemistry, copper-toxicity, dissolved, particulate, USGS, lower South San Francisco Bay
  10.    Flegal, A. R.; Sanudo-Wilhelmy, S. A. "Comparable Levels of Trace Metal Contamination in Two Semi-Enclosed Embayments: San Diego Bay and South San Francisco Bay," Environmental Science & Technology, 1993, Vol. 27, pp. 1934-1936

    Concentrations of trace metals in San Diego Bay are similar to concentrations in lower South San Francisco Bay, but San Diego Bay has not received any sewage discharges since 1964. Data evaluation reaches preliminary conclusion that levels of copper and other metals are largely determined by concentrations of those metals in sediments, which can remain relatively highly concentrated in pollutants decades after discharges cease.

    bay, fate, sediments-water, copper-general, lower South San Francisco Bay
  11.    Common Ground for the Environment, Brake Pad Partnership Phase I Report, October 1996.

    Describes the initiation of the Brake Pad Partnership.

    copper-brake, lower South San Francisco Bay
  12.    Gee, A. K; Bruland, K. W. "Tracing Ni, Cu, and Zn Kinetics and Equilibrium Partitioning Between Dissolved and Particulate Phases in South San Francisco Bay, California, Using Stable Isotopes and High-Resolution Inductively Coupled Plasma Mass Spectrometry," Geochimica et Cosmochimica Acta, 2002, Vol. 66, No. 17, pp. 3063-3083

    Exchange kinetics of metals between dissolved and particulate phases were studied in laboratory samples of South San Francisco Bay water. The initial dissolved fraction (Kd) for copper was 7,600 L/kg. Forward and backward sorption rate constants were 0.07 and 0.12 L/day, respectively, suggesting equilibrium should be reached "on the order of three weeks", with a lower South San Francisco Bay.

    bay, fate, chemistry, copper-general, dissolved, particulate, USGS, lower South San Francisco Bay
  13.    Moran, K.D. Copper Sources in Urban Runoff and Shoreline Activities, Report Prepared for Clean Estuary Partnership, TDC Environmental, 2004.

    The purpose of this report is to summarize information on the sources of copper that is carried to San Francisco Bay in urban runoff and copper that is released directly into the Bay from shoreline activities. This report: provides estimates of the amount of copper released to San Francisco Bay from each source; estimates the relative degree of uncertainty in each copper release estimate and lists the sources of uncertainty for each estimate; reviews available control measures for each copper source, providing control measure effectiveness information to the extent data are available; identifies feasible control measures for copper sources in urban runoff and shoreline activities; and identifies priorities for investigation of sources and control measures. This report was prepared for the Clean Estuary Partnership to support Technical Task 4.11, Basin Planning Assistance for Cu/Ni North of the Dumbarton Bridge.

    copper-toxicity, copper-general, copper-road, lower South San Francisco Bay, brake pads, Castro Valley, wear debris, model-air, model-water