 In dry summers the creek goes dry about one mile below Alum Rock Park.Flows are diverted by the Santa Clara Valley Water District (SCVWD) to three off-channel percolation ponds at Noble Avenue, which in turn, recharge creek flows for about two miles below the ponds through the summer.However the diversion is also capable of drying the stream in late spring which may interfere with outmigrating steelhead smolts.