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(8) .Conditions for Variances. (a) Variances.. shall only be issued upon a determination . that the variance -.. is. the. minimum necessary, considering . _the flood-hazard, to. afford relief .(b) `Variances-shall only be issued upon (i) :A showing_of,,good and sufficient cause, determinatian...that...failure to grant the variance would......result .in.__excepti.-onal hardship to the applicant, and (iii)_A determination that the granting of a variance will not result in increased__ flood heights, additional threats t.o public safety, extraordinary public expense, create. nuisances.,. cause. fraud .on or victimization of the public.,. .or._conf.lict .with existing Local laws or ordinances. _ (c) Any applicant to wh.om. a variance is granted shall be given..a. written notice.- that-.the cost of flood insurance will- .be.commensurate._._wit.h the. .-increased risk resulting . .... from-the_ reduced lowest floor elevation. (d) The building.._.commissioner shall maintain the records,,,-of_ all_.appeal_actions._and_ report any variances to the.-Fede.ral_Insura.nce-Admi..bnistration upon request. Sec, _.12A-7L2-_.-.E1ood_hazarll_ze�dx.ction General standards. In all areas of.. speci.al.. flood_.hazards the following provi- sions .are .required, (1) All new construction and substantial improvements shall _be_._anchored_ to. prevent__ flotation, collapse or lateral,._movement of the structure . (2) All. . new_ c.onst.ruction..and_.. substantial improvements shall- be. .constr.ucted._wi:th._.mat:erials and utility equipment resistant to flood_damage: (3) .All new construction -or . substantial improvements shall._.be constructed.. by. methods-and practices that mini- mize flood -damages,_. (4)_....For all-new..construction .and substantial improve- _.,meats.,.._fully _enclose.d-areas_ ._below the lowest floor that are.. subject_ to_ fl.o,odzng. shall_ be_.designed to automatically equalize-._ hydrostat-ic.. floo.d. . forces on exterior walls by allowing. for the_.._entry..and.-:ex#.__of floodwaters. Designs for ,meeting_this....req:uirement.:must._ either be certified by a _ r.egis.tered.._prof.essional- engineer. or architect or must meet . . or exceed the following..minimum,.,zriteria: A minimum of two openings _having_a_.to.tal..net.�_area of not less than one ' square. inch for every. square. foo.t of enclosed area subject to flooding shall._be..pr.ovided,_. .-,The bottom of all openings shall -b.e.__..no, higher..than one. font above grade< Openings may be .equippe:d..wi-th..screens.,_.louvers, or other coverings or -de-vices. -pro_vided,.tha.t their.. permit the automatic entry and exit. of floodwaters 3 .. (5)...Electrical,_.heating,_ventilation, plumbing and air- conditioning. equipment. and..other_.service facilities shall be designated..andfor.......located__sp_.as to prevent water from entering, o.r_...accumulating_..withia. the components during conditions .of flooding, (6) All new..and._repla-c.ement. Ater supply systems shall be designed-. ta..miaimize_.or-:.eliminate infiltration of flood waters into the .system= (7) New and replacement._sanitary sewage systems shall be .designe.d..to..minimize. or.,.eiiminate infiltration of flood waters .into : the..sys.tems;..:-anrt:.-..discharges from the systems into. .flo_od -waters, (_8) .Onsite- . .waste disposa.l..sys-tems shall be located to avoid impairment.....to-- them_.or. contamination from them during flooding. . . (9) The. storage_.. or p.rocess.ing_ of materials that are in .. . . -.time.. ..o.f..flooding..buoyant., flammable, explosive, or could be injurious .t.o_ human,. ;animal. or._plant life is prohibited. 7