Genesis Solar Energy Project PA/FEIS 4.1-1 August 2010 4
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CHAPTER 4 Environmental Consequences 4.1 Introduction This chapter assesses environmental impacts that would occur due to the implementation of proposed action or the alternatives described in Chapter 2. The baseline affected environment, or existing condition, is described in Chapter 3. 4.1.1 Analytical Assumptions The following impacts analysis was conducted with the following assumptions: 1. The laws, regulations, and policies applicable to BLM authorizing ROW grants for renewable energy development facilities would be applied consistently for all action alternatives. 2. The proposed facility would be constructed, operated, maintained and decommissioned as described in each action alternative. 3. Short-term impacts are those expected to occur during the construction phase and the first five years of the operation and maintenance phase. Long-term impacts are those that would occur after the first five years of operation. 4.1.2 Types of Effects The potential impacts from those actions that would have direct, indirect, and cumulative effects were considered for each resource. Effects and impacts as used in this document are synonymous and could be beneficial or detrimental. Direct effects are caused by the action and occur at the same time and place as the action; indirect effects are caused by the action and occur later in time or further in distance, but are still reasonably foreseeable. 40 CFR 1508.8. Cumulative impacts are those effects resulting from the incremental impacts of an action when combined with other past, present, and reasonably foreseeable future actions (regardless of which agency or person undertakes such actions). 40 CFR 1508.7. Cumulative impacts could result from individually insignificant but collectively significant actions taking place over a period of time. Section 1502.16 of the CEQ regulations forms the scientific and analytic basis for the comparisons of alternatives as described under 40 CFR 1502.14, Alternatives including the Proposed Action. The environmental consequences chapter (FEIS Chapter 4) consolidates the discussions of those elements required by sections 102(2)(C)(i), (ii), (iv), and (v) of NEPA which Genesis Solar Energy Project PA/FEIS 4.1-1 August 2010 4. Environmental Consequences 4.1 Introduction are within the scope of this EIS and as much of Section 102(2)(C)(iii) as is necessary to support the comparisons. The discussion includes the environmental impacts of the alternatives, including any adverse environmental effects which cannot be avoided, the relationship between short-term uses of man's environment and the maintenance and enhancement of long-term productivity, and any irreversible or irretrievable commitments of resources which would be involved in the proposal should it be implemented. 4.1.3 Resources and Resource Uses Not Affected or Present in the Action Area Resources, BLM program areas or other aspects of the human environment that are not affected or present in the GSEP area include: environmental justice; wild and scenic rivers; national scenic or historic trails, monuments, recreation areas, or conservation areas; cooperative management and protection areas; outstanding natural areas; forest reserves; back country byways; wetlands; livestock grazing; and wild horse and burros. 4.1.4 Cumulative Scenario Approach This PA/FEIS analyzes the cumulative impact of the construction, operation and maintenance, closure and decommissioning of the GSEP project ROW grant, taking into account the effects in common with other past, present, and reasonably foreseeable future actions. The cumulative effects analysis highlights past actions that are closely-related either in time or space (i.e., temporally or in geographic proximity) to the proposed action, present actions that are ongoing at the same time this EIS was being prepared; and reasonably foreseeable future actions, including those for which there are existing decisions, funding, formal proposals, or which are highly probable, based on known opportunities or trends. The intensity, or severity, of cumulative impacts considers the magnitude, geographic extent, duration and frequency of the effects (CEQ, 1997). The magnitude of the effect reflects the relative size or amount of the effect; the geographic extent considers how widespread the effect may be; and the duration and frequency refer to whether the effect is a one-time event, intermittent, or chronic (CEQ, 1997). If the proposed action and alternatives would have no direct or indirect effects on a resource, the PA/FEIS does not analyze potential cumulative effects on that resource. See, for example, Section 4.1.3, Resources and Resource Uses Not Affected or Present in the Action Area. For the proposed action, the cumulative scenario includes projects identified in Table 4.1-1 (Cumulative Scenario). Table 4.1-1 identifies each resource or BLM program, the cumulative analysis impact area (which is the geographic scope for each cumulative effects issue), elements to consider, BLM renewable projects, other BLM authorized actions and other known actions or activities that are located or would occur within the cumulative analysis impacts area. Most of the projects listed below have been, are being, or would be required to undergo their own independent environmental review under NEPA or CEQA or both, as applicable. Figure 2-5 identifies existing and reasonably foreseeable future projects along the I-10 Corridor. Table 4.1-2 identifies projects in the immediate vicinity of the I-10 corridor. Genesis Solar Energy Project PA/FEIS 4.1-2 August 2010 4. Environmental Consequences 4.1 Introduction TABLE 4.1-1 CUMULATIVE SCENARIO Resource or Cumulative Analysis Impact Other BLM Authorized Other Known BLM Program Area Elements to Consider BLM Renewable Energy Projects Actions Actions/Activities Air Resources Mojave Desert Air Basin PM2.5, PM10, ozone Blythe, Genesis, Rice, Palen, Desert Eagle Mtn Landfill, D-PV2, I-10, Blythe Airport Solar 1, Sunlight, Chuckwalla, Eagle Crest Pump Colorado River Substation, Chuckwalla Valley Storage, Nextera McCoy, Bullfrog Big Red Bluff Substation, DSW Raceway, Maria Vista, Desert Quartzite, EnXco, Trans Line, OHV, LTVAs, Eagle Mountain Soleil, Mule Mountain Solar, Associated Gen-tie Trans Lines, Global Climate International, national and CO2e All Change regional Cultural Resources Cultural sites, traditional use Ground-disturbing activities and the See Figure 2-5, which includes: areas, and cultural landscapes cultural character of the site and its on the plant site, along the linear vicinity. Blythe, Genesis, Rice, Palen, Desert Eagle Mtn Landfill, D-PV2, Blythe Airport Solar 1, Sunlight, Chuckwalla, Eagle Crest Pump Colorado River Substation, Chuckwalla Valley facilities corridor and in the Cultural resources, including general vicinity of the site, Storage, Nextera McCoy, Bullfrog Big Red Bluff Substation, DSW Raceway, various archaeological (prehistoric and including along the I 10 corridor Maria Vista, Desert Quartzite, EnXco, Trans Line, OHV, LTVAs. commercial and residential historic), and ethnographic resources. Mule Mountain Solar, Associated Gen-tie Etc. projects, etc. Trans Lines, etc. Lands and Realty Eastern Riverside County Designated utility corridors (e.g., Blythe, Genesis, Rice, Palen, Desert Eagle Mtn Landfill, D-PV2, Blythe Airport Solar 1, transmission lines, cellular telephone Sunlight, Chuckwalla, Eagle Crest Pump Colorado River Substation, Chuckwalla Valley towers, poles), existing ROWs, I-10 Storage, Bullfrog Big Maria Vista, Desert Red Bluff Substation, DSW Raceway, Quartzite, EnXco, Eagle Mountain Soleil, Trans Line, OHV, LTVAs, Mule Mountain Solar, Associated Gen-tie Trans Lines, Multiple Use CDCA Plan areas bearing the Restriction or preclusion of otherwise McCoy Soleil, Mule Mountain Solar, None Blythe Airport Solar 1, First Classes multiple use class designation allowable use opportunities maybe also Red Bluff Substation Solar’s Blythe “Limited” Noise Five mile radius around GSEP Equipment, motor vehicles, high None None None site pressure steam blow Paleontological Eastern Riverside County Ground-disturbing activities; rock units Blythe, Genesis, Rice, Palen, Desert Eagle Mtn Landfill, D-PV2, Blythe Airport Solar 1, Resources with potential high sensitivity or known Sunlight, Chuckwalla, Eagle Crest Pump Colorado River Substation, Chuckwalla Valley paleontological resources Storage, Nextera McCoy, Bullfrog Big Red Bluff Substation, DSW Raceway, Maria Vista, Desert Quartzite, EnXco, Trans Line, OHV, LTVAs, Eagle Mountain Soleil, Mule Mountain Solar, Associated Gen-tie Trans Lines, Genesis Solar Energy Project PA/FEIS 4.1-3 August 2010 4. Environmental Consequences 4.1 Introduction TABLE 4.1-1 (Continued) CUMULATIVE SCENARIO Resource or Cumulative Analysis Impact Other BLM Authorized Other Known BLM Program Area Elements to Consider BLM Renewable Energy Projects Actions Actions/Activities Public Health and Safety Hazardous Mojave Desert Air Basin, Releases, spills, emissions, bacteria; See Air Resources, above; see also, Water Resources, below, in this Table 4.1-1. materials/ watershed, groundwater basin, ground disturbance that exposes hazardous waste with focus on and in the vicinity existing subsurface conditions; of the site engineering and administrative controls; health risks Waste California Desert, with emphasis Solid and liquid wastes Blythe, Genesis, Palen, Desert Sunlight, Eagle Mtn Landfill, D-PV2, Blythe Airport Solar 1, management on Riverside County Chuckwalla, Eagle Crest Pump Storage, Colorado