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Honorable Mayor and City Council <br />January 31, 1990 <br />Page 2 <br />4�\ A vi A-� <br />2. For GB, HB, or CB,,Zoning Districts, the requirement for two sites may be larger than one <br />acre, therefore, the following wording is suggested. <br />"All newly subdivided lots shall have at least one (1) contiguous acre of land dedicated <br />for septic system use or area sufficient for two (2) separate and distinct drainfield sites, <br />whichever is greater. Placement of the second required drainfield between the trenches <br />of the first drainfield is prohibited. This area shall not contain permanent buildings or <br />structures, wells, paved surfaces, drainage easements, or the setback distances from any <br />of the above or from property lines. The suitability of this area for septic system use <br />shall be determined by comparison to the Washington County Soil Survey. If the area is <br />classified as having only "slight" or "moderate" limitations for drainfields, the area shall <br />be deemed as meeting these requirements. If any portion of the proposed area is <br />classified as having "severe" limitations, that area shall be evaluated by soil borings and <br />percolation tests to verify the accuracy of the Soil Survey's "severe" classification. If the <br />anticipated sewage flow will exceed 3600 gallons per dayAuitability of this area will be <br />determined only by soil borings and percolation tests. 1 1^ &-- C, <br />All lots existing prior to the adoption of this ordinance shall have area sufficient for two <br />(2) separate and distinct drainfield sites, as verified by soil borings and percolation tests. <br />Placement of the second required drainfield between the trenches of the first drainfield is <br />prohibited." <br />or P-Z-oning.Dist&'cts therejs_aso..lauize...q-,d ement,_t <br />/ would_notate-applisable-.The-fallaw-ing-wording-is-suggested: <br />"All lots shall have area sufficient for two (2) separate and distinct drainfield sites, as <br />verified by soil borings and percolation tests. Placement of the second required <br />drainfield between the trenches of the first drainfield is prohibited." <br />Sincerely, <br />Larry D. Bolnrer, P.E. <br />LDB/mha <br />