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cloth and granular filters. !f granular filters are used, in no case should they be thinner than <br />6-9 inches." (from Applied Hydrology and Sedimentology for Disturbed Areas, Barfield, <br />Warner, and Haan, 1987) <br />Once major re-grading work is completed at the New Elk RDA (#C-81-012), a dozer and <br />excavator will be brought to Lorencito to complete repair work due to the previous summers <br />storm runoff. <br />Overall, the site appeared in good condition for the winter season. <br />4 <br />