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5) Remove f111 excavated from curtain drain from proposed <br />drainfield site - do not disturb the exisiting sites by <br />filling, traffic, grading, etc. <br />We have discussed the fact that because it is spring, the <br />seasonal saturated zones will be starting to disappear naturally. <br />Unless we see a drastic and obvious relative change in the <br />saturated zones throughout the drainfield sites ( a change <br />relative to adjacent areas not affected by the curtain drain) we <br />cannot even consider the proposal to use a trench system. This <br />is your risk, and if the curtain drain fails to have a verifiable <br />effect on the seasonal saturation of the site, the mound systems <br />will still be required. I will be out of town May 6-9, please <br />contact Tom Jacobs or Lyle Oman during that time if you have any <br />questions. <br />Sincerely, <br />f� <br />Michael P. Ga ron <br />Assistant Zoning Administrator <br />MPG/PP <br />