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Section 5 <br />Table 19: Summary of Wetliand Parameters <br />Activity <br />Presence of <br />wetland <br />vegetation <br />Presence of <br />wetland <br />hydrology <br />Presence of <br />hydric soils. <br />Weiland <br />Determination <br />Santa Ana Rivet, <br />No <br />No <br />No <br />Not Present <br />Edinger Avenue <br />Crossing <br />—Bridge <br />Construction of the <br />No <br />No <br />No <br />Not Present <br />water supplylback <br />Flush pipelines, <br />injection wells and <br />shared structures <br />Heritage MIJSeLJM <br />No <br />Na <br />No <br />N'ot Present <br />Monitoring well <br />I <br />Santa Ana River Edinger Avenue Bridge Crossing <br />The proposed water suipply pipeline would be extended across the nose piers of <br />the Santa Ana River Edinger Avenue Bridge. This segment of the Santa Ana <br />River is concreted lined and void of vegetation. The placement of the pipeline <br />would be above the ordinary high water mark and would not involve any <br />construction activities that would impact Waters of the U.S./State or Welland <br />Waters of the U,SJState- <br />Construction of the Water Supply /Back flush Pipelines, Injection Wells and <br />Shared Structures <br />The proposed injection well sites, water supply pipeline alignment and shared <br />communication structures would be constructed on existing paved parking areas <br />and roads or within the footprint of existing structures. No Waters of the <br />U.S./State or Wetland Waters of the U.S./State are located in the areas where <br />these components of the Proposed Project would be constructed. <br />The Proposed Project includes the construction of back flush pipelines that would <br />discharge well water into Centennial Lake and the Greenvillle Banning Flood <br />Control Channel. The back flush pipeline to Centennial Lake would tie into an <br />existing wet well that was formerly used to irrigate the landscape at Centennial <br />Park. The construction of the back flush pipeline to Centennial Lake would not <br />impact Welland Waters of the U.S./State or Waters of the U.S.YState. <br />The bark flush pipeline to the Greenville Banning Flood Control Channel would <br />discharge into an existing gutter catch basin and then drain into the Greenville <br />Banning Flood Control Channel, The construction of the back flush pipeline to <br />Greenville Banning Flood Control Channel would not impact Weiland Waters of <br />the U.S,/State and Waters of the U.S. / State, <br />I <br />04'�J Mid Basin Centennial Park �t'q& n,16Project Final EIR 5-58 <br />