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Apr-06-98 07:0EPA William Henderson 622 404 2299 P. 12 <br /> NOTES <br /> OUTv4TO L ALL PIPES SHOULD BE AT LEAST 4-INCH <br /> c14DIAMETER. <br /> INLET FROM 2. ELEVATION OF INLET AND SUPPLY LINE TO <br /> SEPTIC TANK NEXT DROP BOX MAY BE ADJUSTED UP 00 <br /> on rA1:v1oUS DOWN TOR OF_SIpE�, C!-FLUENt LrVV(. IN <br /> 0.tur' UQA -SUPPLY LINE TRENCH. <br /> TO NEXT <br /> or BOX S. SUGGESTED TRENCH LIQUID LEVELS, tA) 21NCHES <br /> { SBNT IFTIC OF <br /> BRIO COVwM TLET PffACCKi, DY tie AS�OP <br /> or <br /> LOIfT PAPER COVERS RgGKTRAW AND <br /> ' d, INVERT OF INLET MUST BE AT LEAST ONE INCH <br /> P-Im►I£R THAN INVERT OF SUPPLY plpE TO <br /> NEXT DROP BOX. <br /> OUTLET TO <br /> TRENCH 3 TnENCClfSM Oo UTLFT ONE SIDE DA AOT" <br /> El <br /> OOK <br /> NE SVPr4Y LrntE <br /> 01`1 �_WTOVT6LIENC; �_I LF <br /> DU <br /> 70 <br /> '-- ---- I - - TR riCH <br /> DROP BOX <br /> GRAVELLESS TRENCH CONSTRUCTION DETAILS <br /> f 02" Inspection <br /> -7Inlet Pipe to Next t t!2 Mals Well <br /> *" T4, Drop Box Adapter <br /> 12" Soil Backfill <br /> ;t <br /> Corrugated Tubing Coverall <br /> with Geolextile Febrl <br /> Drop Sox <br /> Trench Length •• up to 100 Fest <br /> --Ovarfill to Mow NOTES: t Soilorn of trench must be level. Top <br /> for Settling <br /> of tubing must ba Iovel. <br /> Soil 12* of Sea 2. Scarify trench bottom and sidewalis <br /> r 9aCk[itl Barkli)1 of lettat 12 inches above trench battam <br /> 24" ' <br /> to expose natural sell. <br /> �2• <br /> 4ts._ ._ 3. For proprictory products cQnsutt <br /> Holes Located manufacturers perlormtknCe oriletia. <br /> 24 an 4 and <br /> 8 O'Clock <br /> Figure D-33 <br />