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it nice Stan City of Pleasanton Page 4 3 Fig 3,1.1 r Area northeast of Lake I should also he shown as "undeveloped private land" 3.5 2 I.3 Statanents about Zone 7's future Chain of Lakes immediately following the discussion about lack of capacity in Del Valle t may lead the reader to believe that the Chain of Lakes arc being created to capture excess winter nmotT for the purposes of supplementing our water supply. This is not the case. Storm flows that exceed a certain level would be detained in the CC)Ls but would be released to the creeks once the storm passes 1 5 2 3 Zone 7 plans to operate the Chain of Lakes in the future as f described to recharge the groundwater basin. but does not currently do so. Surface water releases come from the aqueduct and recharge of the groundwater through the streams. 3 5 3 3 C riLs w i l l he turned over to Zone 7 by 2030, but that does not I mean that all the facilities will be in place to operate them Stormwater nmotl from the flood protection facilities that are contemplated to the constructed at the COLS, has not been examined at this time as a viable supplement to our existing water supply nor have necessary water rights been secured. Current plans are to return any Mon captured in the C'Ols to the streams once storms pass. 3 6 8 3 Although the diversion from Arroyo Mocho is into Lake H, Lake 1 is the primary groundwater recharge lake. 3 6 12 5 i The flood protection goal of the SMMP is the 100 -year floral event, 3 6 j 14 I The Arroyo liiocho does not have 100.year flood capacity in the COLs arcs Sciche activity would likely have a bigger impact on the berms that separate the lakes than on the Macho, which is elevated significantly relative to the highest lake levels. 3 6 27 Prg 9,3 Please remove all references to the Chain of Lakes being used as 'sediment diversion' or detemlon. Sec comments under CiP update. 3 1 I 1 last Add Pleasanton Canal to I of watercourses ivt