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Section 4 <br />Alternative 4: Centennial Park Four Injection Wells/Heritage Park <br />Monitoring Well with Alternative Pipeline Alignment (Pipeline Design <br />Alternative) <br />Under Alterative 4, four injections wells and associated water supply and back <br />flush, pipeline would be constructed at Centennial Park and a below ground <br />monitoring well would be constructed at Heritage Museum, Under Alternative 4, <br />an alternative water supply pipeline alignment would be constructed that would <br />extend through open space area in Centennial Park. The waiter supply pipeline <br />would be the same approximate length and diameter as the water supply pipeline <br />in the Prosed Project and would involves the same mix of construction equipment <br />and construction activities, Under Alterative 4, an estimated 12 MGD of <br />additional groundwater recharge capacity would be provided to replenish the <br />Orange County Groundwater Basin. The Alternative 4 Project Plan is shown in <br />Figure 8. <br />4.4 CEQA Environmentally Superior Alternative <br />The State CEQA Guidelines CCR Section 15126.6(e) (2) requires identification of <br />an environmentally superior alternative from among the Proposed Project and <br />Project Alternatives, Federal NEPA regulations also recommend that an <br />environmentally preferred alternative be identified; however, under NEPA, that <br />alternative does not need to be identified Until the final record of decision is <br />issued. Therefore, the discussion in this section of the environmentally superior <br />alternative is intended to satisfy only the State CEQA requirements. <br />The No Project Alternative would result in fewest adverse impacts to the <br />environment, because none of the construction impacts associated with the <br />project would Occur. If the No Project Alternative is considered the <br />environmentally superior, State CEQA Guidelines CCR Section 15126.6(e) (2) <br />requires the identification of an "environmentally superior alternative" other than <br />the No Project Alternative from among the Proposed Project and the Project <br />Alternatives, A comparison of the environmental impacts resulting from the <br />implementation of the Proposed Project and Project Alternatives is shown in <br />Table 3. <br />Mid Basin Centennial Park I A ti - Al Project Final EIR 4-4 <br />' 9 <br />