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1 t ( <br /> TRENCH ROCK COVERED WITH PERMEABLE <br /> SYNTHETIC FABRIC OR 4" LAYER OF MARSH HAY OR \4:\DIAMETER INSPECTION <br /> -- PIPE TO NEXT STRAW COVERED WITH UNTREATED BUILDING <br /> - INLET • DROP BOX PAPER (RED ROSIN) --- WELL WITH CAP <br /> 1 ; W _EARTH BACKFILL AT LEAST �� <br /> 6" ABOVE TOP OF ROCK <br /> �` <br /> 4;DISTRIBUTION . PIPE- . _ - - _ - - ; -: 4-, ' • <br /> -.--i-: <br /> . z �__ 0 r4 <br /> 1 - _ `(,•(' . AT LEAST 6" DEPTH OF CLEAN • • . . - ° . . . - <br /> • <br /> �: ;� ROCK 3/4 TO 2 h/z� DIA. SEE NOTE 5. Q fi` <br /> • <br /> DROP BOX* � • <br /> sic_ - . cf_<<.�, V4 <br /> . !- —MAXIMUM LENGTH = 100 FEET <br /> • <br /> OVERFILL NOTES: I. BOTTOM OF TRENCH MUST BE LEVEL. TOP OF TRENCH <br /> -- 4 TO 6 INCHES ROCK MUST BE LEVEL. <br /> INSPECTION <br /> WELL 2. SLOPE ON DISTRIBUTION PIPE IS BETWEEN <br /> y_ LEVEL AND 4 INCHES PER 100 FEET. <br /> �� �/ RECOMMENDED SLOPE IS LEVEL. <br /> i' BACKFILL �6 �TO 12" OF <br /> SOIL BACKFILL 3. DISTRIBUTION PIPE CAN BE PERFORATED <br /> ti PLASTIC INSTALLED WITH ONE ROW OF <br /> <<<SLc< <-'ik.�• L� —1��c ' O � HOLES ALONG THE PIPE BOTTOM. PIPE <br /> o 1 2" DEPTH OF MUST HAVE A BEARING STRENGTH OF <br /> o ROCK ABOVE AT LEAST 1000 LB/FT. <br /> 4' ` c• o j PIPE <br /> • ROCK o AT LEAST 6" OF 4. SCARIFY TRENCH BOTTOM AND SIDEWALLS • <br /> ..� . _ o ROCK BELOW AS HIGH AS ROCK WILL BE PLACED IN THE <br /> Y " . r ' PIPE. SEE TRENCH IN ORDER TO EXPOSE NATURAL SOIL. <br /> NOTE 5. REMOVE LOOSE SOIL BEFORE PLACING ROCK. <br /> 18" TO 36" ---,--15. WHERE TREES ARE PRESENT OR LIKELY TO BE <br /> PRESENT DURING THE LIFE OF THE SYSTEM, <br /> 12 INCHES OF ROCK MUST BE PLACED UNDER <br /> THE DISTRIBUTION PIPE. <br /> TRENCH CONSTRUCTION DET/ 1 LS <br />