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:at•,' <br />VERTICAL SIDEWALL SEPTIC TANK <br />_,,,.,-FINISHED GRADE <br />V. .,,. 1 !, 1,_ l-. <br />f;,r: -AT LEAST ~ ~ 116• T',o 12'' SOIL w AT LEAST ~ <br />1" 4 • DIA. .-----i <br />1 <br />cOVER 4u DIA.~ <br />Ml;~Lt----+;'-A-_:-_ .. -~-E_A_S_T_1··--,,-_-,-'--i :: • <br />1 <br />- <br />1~----.:-1/. _ AT _____ ;..~~ST I" 1 ....... : _ <br />· r r <br />Y/ <br />-:: l t Al DIMENSIONS FOR TANKS \YITH VERTICAL SIDES A <br />,__ --+-1-~?o,'l,,------1 ~Wc.!.ID!,!-T..!.-□H.....!;Wr_11~2:::4!.."_!!;M!_!!INc!·~,M~U~M~----------lt---+-1 <br />_\:_E;_r:!GTH L 2 TO 3 TIMES THE W-'-'--"ID,-'T'-'-H'-------t <br />-A <br />B DIAMETER 60" MINIMUM <br />_j_ DEPTH D 30" MINIMUM· 78" MAXIMUM <br />l --i 0.2 D C[ <br />------AT. L3E,, AS_T____ ----·· ---B 6" MINIMUMi_(?.2 D MAXIMUM . -• <br />C 0.4 D ..__ ___ _____. _______________ __, <br />-·-AT LEAST 4 FEET-----------.J <br />NO!ES; <br />1. SN411N~Y lEliS Al LfMl • INCi IES IN Ow.AElF.n <br />2. 111El"£SIW L DI, OtlE onuo11e ,.ma tOlES, 20'"lF.ASl <br />OIIKJlSIQNNIO LOCAlFO WIIIIIN 6 FEE! or-1'1.l llll'll( <br />" WM.LS. <br />l. AN tJSl'ECIIOH rll'E OF AT LEAsr 4 INCIIES 01""41a1Ell <br />ORAI.Wll lOlE SI W.l llHOCAlEOOVEll !X>lH llE INLET <br />NlOOJTL.El [)(;VIC(S. lHECEtllEl1LINC()r-111: flSl'~ClOl <br />r1res $1 WJ. 0C 1 IIE SM£->S lllE CCH I t:n I INE OF l HE <br />DNFLE OPCNINGS 011 SN<II/JtV lCES. A 1141/IOINSl'ECIION <br />l'M'(UJST RE LOCAIU>BEIWCCN TIIE tA.EI ,,,,._,ooll(l <br />ONrLES. <br />:.- <br />◄. ~WUKJC E OOVERS SIW.L IELOCAIEOWIIIIIN I'-INCHES. <br />1rr1E MNlllOLE IS WlllllNSU( IHCIESOf 1111; SUIV'ACE <br />11 E CX:WEH MJS I DE SECU'EO TO l'IEvtarH =s.'l. <br />5. 51,rAnAION OISlANCE OCTWEEH F.NOoi: H.El rrF. ANl) <br />NE>J1ES1 f'OINI ON OAffLE SHAU. l!E NO I.ESS lllAN 6 INCi tES <br />00 NO M:>l'IE TI~ 12 NCIIES. <br />6. Fon I IOIIZOI◄ IAL CYLllOOICAI.. lANK~ 011,l(tmlON A IS 0, 1!.0 <br />ANO 011.f:NSION C I~ 0.350. <br />' ...... '!tt:: •.. <br />; <br />CLEAN OUT TANK WHEN: <br />~ <br />MEASURE <br />IN <br />SCUM <br />THE <br />"I( IS 3• OR LESS OR <br />•a• IS 12• OR LESS <br />~ <br />BLACK COLOR <br />DISTINGUISHES SLUDGE <br />LAY~ FROM LIQUID <br />AND SLUDGE ACCUMULATIONS <br />SEPTIC TANK <br />I)