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9.13 Perior~nnce Stan~ - Soils 9.13 Sca~ 9.13.01 Pur-pose~ and Fm ai,~or~ Subdivision I. The City of Ramsey determines that in areas not served by sanitary sewer, the effluent from septic tanks shall be disposed of by soft absorption m properly construcved and effectively operating absorption systems. Sub& 2. The city determines that protection of the public health, safety and genera] welfare, including the protection of natural resources from impairment, pollution, and destruction, ~dth which it is charged by Minnesota Statute 1973, §lldB.01, are advanced by permitting soll absorption systems on]3' where soil permeability, surface slope, freedom from flooding and distance from groundwater ensure reasonable absorption ~fithout pollution of waters, such lands hereinafter being described as Class I lands. Sub&2~ The city finds that lands within it have unfavorable characteristics for soil absorption systems; such lands hereinafter being described as Class II, III, Il7 and V lands. Subd. 4. The city adopts the standard requirement that sufficient area of Class I land be available '~fithin each tot or parcel for the construction of an adequately sized soft absorption system and the reconstruction or duplication of the soil absorption or final disposal unit of that system. In no case shall the area of contiguous Class I land available on each lot be less than as follows: a. 2000 Urban Area ......... 50% oflot area b. Transitional Area ....... 25% of lot area c. Rural Area ................ 25% of lot area .~dJ areas shall be exclusive of public rights of way, including publicly dedicated easements. All requ/red areas of contiguous Class I land availability may include that portion of the lot or parcel used for building construction and all such areas ma5' include build/ns set-back requirements, except that there must be adequate area for septic tank construction in the 2000 Urban Development Area and adequate area for septic tank construction in the 2000 Urban Development Area and adequate area for septic tank construction and reconstruction in the Transitional amd Rural Development: Areas. SubcL 5. The c/fy adopts the 7~noka CounLv Sum, ex') and supplemental operational soil su~,eys as its o~cia] moil su~,ey and m~es i: a par: of r~s ore.ce, a copy of w~n is on file ~5nh ;he city clerk. The soil sue'e>' is a ~mde ~o establishing land classifications as defined herein. Land areas mapped and described 4~. the soil ~" · :' as ' '~ abso~zion ~vat=~ does no; conszizuze ~n imoiiea or e>:oress warr~rv %hal such ~;~.~ is in fac: usable for -x~=~.~.