Environmental Impact Statement - Sonoma Land Trust

Section 3.2
Surface-Water Hydrology,
Tidal Hydraulics, and Sedimentation
Introduction
This section discusses the potential physical changes to surface-water hydrology,
tidal hydraulics, and sedimentation resulting from the proposed alternatives,
including the No-Action Alternative, with emphasis on potential tidal hydraulic
changes and environmental consequences related to sedimentation and flooding
of the restoration alternatives. Included in this section are a description of the
regional hydrologic setting and an overview of the federal and state policies and
regulations that govern mitigation requirements.
Affected Environment
Data Sources
• Information presented in this section is based on the following data sources:
• Sears Point Restoration Project Hydrodynamic Analysis (Moffatt and Nichol
2007, 2011).
• Sears Point Wetlands and Watershed Restoration Project, Final Preliminary
Plan (Wetlands and Water Resources 2007).
• Existing Conditions Report, Sears Point Restoration Project (Wetlands and
Water Resources 2005b).
• Final Supplemental Environmental Impact Report/Environmental Impact
Statement for the Bel Marin Keys Unit V Expansion of the Hamilton
Wetland Restoration Project (Jones & Stokes 2003).
• Restoration Research and Monitoring in Bayland Wetlands of San Francisco
Estuary: The Tolay Creek Project, 2002 Progress Report (Takekawa et al.
2002).
Specific reference information is provided in the text.
Sears Point Wetland and Watershed Restoration
Project Final Environmental Impact
Report/Environmental Impact Statement
3.2-1
April 2012