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N,:lterial used on tOD of the tile shaLl be sufficiently fine tc , u filtering of backfill material into the LIe lines. :,'11sr necessary to to maintain proper grc:de a.'1d covel', a line may be terraced by construction of a suitable brick or concrete drop box or by use of wlls wit!': cemented jrints. 24~ prohibit 6-122 ~'lhere it is necessary to use a disposal draina~;e field, a rlllnllTlUm of one hundred fifty (150) sfJUare feet of effective absorption area shall be prQ- vided for each dwelling. This would amount to one hundred (100) lineal feet of eighteen (18) inch trench. Size and J11inimum spacing requirements for disposal trenches. :ilidtt. of tr. Depth of tr. Effective absorption ;;inimum spacing at bottom i:: inches area of Jines c to c in inches sq. ft. per lin. ft in feet. IS in. 18 to 30 1.5 6 25 in. 18 to 30 2.0 6 30 n. IG to 36 2.5 7.5 36 in. 2u to 36 3.0 9.0 T,TELL DRILLING 6-123 The vJell driller shan be responsible for the [Toper installation of the Hater pump wh:i_ch he sup lies and instlls. 6-12)1 Only persons licensed as well drillers shaJ 1 be perr'\itted to install or repair any water purr~ in the municipality. 6-125 Upon the completion of the drilling of each and every Itrell, the vwl1 driller shaD be required to furnish a pumping t.est of sufficient dura.tion to deterrHine t.he yield. "Hi thin in ten doys after such a test of Pi well, the 'IJel1 driller shan file a.Y-. affadavit with the plumbing ins~)ector sett.ing forth the results of t.he test, the capacity of the 'I.reE, the pumping level, the deptr. of casing from grade, a description~Jf the screeIi or rock formation. 6-126 No pri'J'atc well shall be accepted until it has been tested at the minimum rate of ten ballons p,"r minute. The will driller shall furnish the plur:binL; inspector lJith a sworn statement as to the length d:Jf the test and tJ,e yield of the Holl. 6-127 All wells shall comply with the su [;ostions and requirements 0 f the Minncsok. St'?te Board of Heal.th for Water Supply. 6-123 lJo vlel1 stLalJ be insta led in a pit l)elo-vT the surface of the ground unJ_8ss such well pit is connected '\-lith the main basement area of the building beint; served b~r the "\'Tell, b;' a doort-ray or opening. 1'.'here a vrell is lo,...~ted in a space adjacent to the basement of a house with an opening between this space and t~lC base, the floor of the pit shall be at least one fc,t above tho t'!ain basement area floor. . 6-1?9^'.11 wells must clear any overhead obstruction bY'3.t least one footlnd tpe ,vi 11 pipe must be at least eight incrles above fli'('.r or Hell:;i t. 6-130 ~bove surface well houses or sheds shall have a concrete base of ct lea~ot five feet by five feet and this base shall. be six inches abo'.'c the surrounding p'olmd. Sucb shed and base rn3.y be attc.ched to the b':ildin[; served by the Hell, but the well must je located at least three !t!eet frum the buUding vml1 or fO.mclation. ;.Je1l pits .".r:d above surface "Jill houses must be covered ~-rith 8. Hater tight reof', and such roof Dust not bender the roof of the -39- ~ --~-- ~--- ~-~--