Environmental Impact Statement - Sonoma Land Trust

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California Department of Fish and Game U.S. Fish and Wildlife Service Section 3.1. Geology, Soils, and Paleontology Table 3.1-2. Society of Vertebrate Paleontology’s Recommended Treatment for Paleontological Resources, by Sensitivity Category Sensitivity Category Definition Recommended Treatment High sensitivity Undetermined sensitivity Low sensitivity Geologic units from which vertebrate or significant invertebrate fossils or suites of plant fossils have been recovered Areas underlain by geologic units for which little information is available Areas underlain by geologic units that are not known to have produced a substantial body of significant paleontologic material Preliminary survey and surface salvage before construction begins Monitoring and salvage during construction Specimen preparation; identification, cataloging, curation, and storage of materials recovered Preparation of final report describing finds and discussing their significance All work should be supervised by a professional paleontologist who maintains the necessary collecting permits and repository agreements. Preliminary field surveys by a qualified vertebrate paleontologist to assess project area’s sensitivity Design and implementation of mitigation if needed, based on results of field survey Protection and salvage are generally not required. However, a qualified paleontologist should be contacted if fossils are discovered during construction, in order to salvage finds and assess the need for further mitigation. Source: Society of Vertebrate Paleontology Conformable Impact Mitigation Guidelines Committee 1995. As used in Table 3.1-2 and the significance criteria adopted for this analysis, the term significant refers to paleontological resources that fulfill one or more of the following criteria (Society of Vertebrate Paleontology Conformable Impact Mitigation Guidelines Committee 1995): • provides important information shedding light on evolutionary trends or helping to relate living organisms to extinct organisms; • provides important information regarding the development of biological communities; • demonstrates unusual circumstances in the history of life; • represents a rare taxon or a rare or unique occurrence; • is in short supply and in danger of being destroyed or depleted; • has a special and particular quality, such as being the oldest of its type or the best available example of its type; or • provides important information used to correlate strata for which it may be difficult to obtain other types of age dates. Consistent with these criteria, paleontological resources considered significant in California typically include vertebrate remains but may also include invertebrate fossils and plant fossils in some areas. Sears Point Wetland and Watershed Restoration Project Final Environmental Impact Report/Environmental Impact Statement 3.1-12 April 2012
California Department of Fish and Game U.S. Fish and Wildlife Service Section 3.1. Geology, Soils, and Paleontology Impact Mechanisms Over time, the No Action Alternative could result in flooding due to levee failure and/or sea level rise. The following restoration-related activities and natural processes could result in accelerated soil erosion; loss of nonrenewable soil or geological resources; substantial damage to property, structures, or related improvements; or destruction of a unique paleontologic resource or site. • Mass grading, excavation, and other activities involving soil and vegetation disturbance, including levee breaching • Trail construction • Placement of fill materials on weak, compressible Bay mud deposits • Construction of facilities such as levees in an area subject to earthquakeinduced ground shaking Thresholds of Significance Criteria used for determining the significance of an impact on geology, soils or paleontological resources are based on the State CEQA Guidelines and professional standards and practices. Impacts were considered significant if an alternative would: • result in substantial soil erosion or the loss of nonrenewable soil resources; • substantially increase the risk of personal injury, loss of life, or substantial damage to property, structures, or site improvements as a result of existing geologic, seismic, or soil-related hazards; or • create a risk of personal injury, loss of life, or substantial damage to property, structures, or site improvements as the result of geologic, seismic, or soilrelated hazards that would be created during the construction and operation of the restoration and other activities. • result in substantial damage to or destruction of significant paleontological resources, as defined by SVP (see Society of Vertebrate Paleontology Conformable Impact Mitigation Guidelines Committee 1995). Impacts and Mitigation Measures No-Action Alternative Under the No-Action Alternative, the proposed wetland restoration site would remain in its present condition. Prior to transfer of the property to CDFG, existing leases (agricultural and Sports Club) would be terminated and the land managed as seasonal wetlands and saturated grasslands. Property transferred to USFWS would be similarly treated, though agricultural operations would be allowed to continue for purposes of vegetation management under a Special Use Sears Point Wetland and Watershed Restoration Project Final Environmental Impact Report/Environmental Impact Statement 3.1-13 April 2012
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Sears Point Wetland and Watershed R
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Contents List of Tables ...........
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California Department of Fish and G
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Executive Summary This summary prov
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Table ES-1. Summary of Impacts and
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Table ES-1. Continued Page 3 of 141
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Table 1-1. List of Local, State, an
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Table 2-2. Action Alternatives Cons
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Page 81 and 82: California Department of Fish and G
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Section 3.4 Public Health and Safet
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Table 3.5-2. Special-Status Species
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Section 3.7 Agricultural Resources
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Section 3.11 Air Quality Introducti
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Section 3.12 Noise Introduction Thi
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Section 3.14 Aesthetics Introductio
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Section 3.15 Environmental Justice
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Chapter 4 Consultation and Other Re
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Sonoma Land Trust Chapter 4. Consul
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Chapter 5 Public Involvement and Sc
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Sonoma Land Trust Chapter 7. Refere
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Environmental Impact Statement - Sonoma Land Trust

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