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Scientific Review of the Draft Environmental Impact Statement Drakes Bay Oyster Company Special Use Permit (2012) / Chapter Skim
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Summary
Pages 1-6

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From page 1...
... The committee did not perform an independent evaluation of the environmental impacts of the proposed alternatives, but restricts its findings to the strength of the scientific conclusions reached in the DEIS and to the identification of concerns, if any, not covered in the Atkins peer review.2 The report focuses on eight of eleven resource categories considered in the DEIS: wetlands, eelgrass, wildlife and wildlife habitat, special-status species, coastal flood zones, soundscapes, water quality, and socioeconomic resources. Ecological Setting Drakes Estero is a coastal lagoon located approximately 25 miles northwest of San Francisco, California that extends northward into the Point Reyes peninsula from Drakes Bay.
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From page 2...
... Alternative C: Level of use consistent with conditions and operations at the time the current Special Use Permit was signed in April, 2008; Shellfish production limited to 500,000 lbs/yr. Alternative D: Considers an expansion of operations and new or modified onshore facilities as requested by DBOC as part of the EIS process; Shellfish production limited to 850,000 lbs/yr; Major Conclusions For the eight resource categories, the committee evaluated conclusions in the DEIS concerning levels of impact of each alternative and the information and interpretations that led to them.
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From page 3...
... Level of Uncertainty and Alternate Conclusions An estimate of uncertainty, which reflects the strength of the available scientific information, gives decision makers a better understanding of the range of potential impacts for a given action alternative. Therefore, the committee assessed the data and analysis for each resource category in terms of the level of uncertainty associated with the impact assessment given in the DEIS.4 Of the eight resource categories, the committee judged that the projected impact levels for seven had moderate to high levels of uncertainty and, for many of these an equally reasonable alternate conclusion of a lower impact intensity could be reached based on the available data and information (see Table S-1)
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From page 4...
... and; (7) include additional mitigation options as possible permit conditions for the action alternatives to reduce impacts, e.g., an option to discontinue the culture of Manila clams would address some concerns about the establishment of that non-indigenous species in Drakes Estero; impacts of many DBOC practices (i.e., boat use, culture techniques, marine debris, soundscape disturbance)
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From page 5...
... Summary 5
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Key Terms

  • action alternatives
  • action alternative
  • resource categories
  • drakes bay
  • potential impacts

  • eight resource
  • resource category
  • bay oyster
  • oyster company
  • potential environmental

  • eleven resource
  • impact intensities
  • impact intensity
  • impact assessments
  • commercial shellfish

  • dboc actions
  • conclusions reached
  • shellfish farm
  • moderate uncertainty
  • water quality

  • comparable ecosystems
  • uncertainty associated
  • insufficient data
  • concerning levels
  • measurable effect

  • deis impact
  • federal action
  • current scientific
  • scientific conclusions
  • available scientific


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