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<br />"7~---f:;Y/-_ CHECK VALVE <br />,~~ 1" WIRE MESH <br />" , f' m V-~.... G"m <br />\.. ;1 111- - '11'----- CAST IRON TENON <br />:P! U, ~l :I-~ <br />'/?{~:~QJ"l?:;:~' ~ C~NCRETE BACKFILL <br /> <br /> <br />,c/._.- ',~:': SAND BACKFILL <br /> <br />EM 1110-2-1913 <br />31 Mar 78 <br />METAL WELL GUARD - <br /> <br />PLASTIC STANDPIPE ~ <br /> <br />-T <br /> <br />o.p <br /> <br />VARIABLE - TO TOp.OF <br />MINIMUM WATER TABLE <br /> <br />. <br />-... <br />t <br /> <br />::.'0 <br />,,' <br />',' <br />000'" <br />, ' <br />0:: <br />Cl"O <br />.., <br />,,' <br />, , <br />, " <br />''', <br />.''''. <br />.. <br />, .. <br />",0 <br />..' <br />" <br />.0." <br />Q~':. <br />,,, <br />", <br />.:.0 <br />,,' <br />, , <br />," <br />'" <br />'.. <br />.. , <br />.. , <br />, '" <br />110," 0.00 <br />... III ,,'"00 <br />'Ootlo 0'00 co o' <br />~oGOClooooOt;)o <br />. II O. 00 I) Clo Il1o <br />o COo II 1I!l<1 a <br /> <br />--r <br />'" <br /> <br />..... <br /> <br />~:.:.:.:::~ <br />....., <br /> <br />e <br /> <br />.. <br /> <br />~ <br /> <br /> <br />:: .: <br />:,.:.::.; <br /> <br />TOP OF <br />GRAVEL FILTER <br /> <br />-L <br /> <br />, " <br />, , <br />" <br />" " <br />" , <br />'" <br />.., <br /> <br />TOP OF <br />WELL SCREEN <br /> <br />'" <br />0.'. <br />" <br />", <br />" <br />, " <br />"all... <br />" ' <br />, , <br />, <br /> <br />BLANK PIPE <br />THROUGH VERY <br />FINE SAND STRATA <br /> <br />e <br /> <br />" <br />, <br />.. , <br />", <br />, " <br />,~ <br />',' <br />0..0 <br />1110.0 <br />" <br />" , <br />", <br />.. , <br /> <br />GRAVEL FILTER <br /> <br />6'MIN <br /> <br /> <br />, <br />", <br /> <br />PERFORATED OR <br />SLOTTED SCREEN <br /> <br />~ 23' MIN---l <br />Figure 5-7. Typical relief well <br /> <br />, <br /> <br />5-10 <br /> <br />. <br /> <br />. <br /> <br />e <br />