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Percolation reduction appeared primarily
          From Percolation Studies at
                     OCWD  (1987-1990)…





















































                                               a function of fine suspended solids  accumulation Accumulation at or very close to the  sediment/water interface responsible for     loss of percolation Percolation loss appears to follow a log  decay relationship    Yucaipa Sustainable Groundwater Management Agency - January 23, 2019 - Page 65 of 137









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