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<br /> <br /> <br /> <br /> i BUILDINGS § 6-190 <br /> <br /> Sec. 6-187. Termination in specific strata prohibited. <br /> No well construction shall terminate in the Decorah <br /> Shale, Platteville Limestone or Shakopee-Aneota Dolomite. <br /> No exiating well shall be increased in depth to terminate in <br /> those formations. (Ord. No. 56, § 4-4, 9-12-60) <br /> Sec. 6-188. Minimum diameter. <br /> <br /> The minimum diameter of any finished well casing shall <br /> be four (4) inches. Well casings shall be constructed of <br /> welded or coupled steel or wrought iron and shall conform to <br /> the following specifications for weight and thickneas. <br /> Diameter Well Weight per lineal <br /> Thickness foot with threads <br /> and couplings <br /> 4" 237 inches 10.98 lbs. <br /> 5" 258 inches 14.8 lbs. <br /> 6" 280 inches 19.45 lbs. <br /> 8" .322 inches 29.35 lbs. <br /> 10" .365 inches 41.85 lbs. <br /> 12" .375 inches 51.15 lbs. <br /> (Ord. No. 56, § 4-5, 9-12-60) <br /> Sec. 6-189. Contaminated etrata unsatisfactory. <br /> Any water-bearing formation yielding water which is <br /> contaminated, as evidenced by the presence of chemicals or <br /> bacteria of sewage origin, ahall be regarded as unsatisfacto- <br /> ry for well development. (Ord. No. 56, § 4-5, 9-12-60) <br /> <br /> Sec. 6-190. Minimum depth. <br /> The casing of any well constructed entirely in unconaoli- <br /> dated earth formations shall extend to a depth of at least <br /> one hundred (100) feet below establiahed ground level or <br /> through the first impervious soil formation encountered, <br /> whichever is ahallower, but in no event less than <br /> seventy-five (75) feet deep, and at least twenty (20) feet <br /> below expected pumping level (level below ground level to <br /> 343 <br />