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INDIVIDUAL SEWAGE TREATMENT SYSTEM DESIGN <br /> DATA FROM THE SITE: <br /> NUMBER OF BEDROOMS 3 � // � �' <br /> AVERAGE PERCOLATION RATE 13 MPI v r}� .,. tI"''� <br /> LAND SLOPE ACROSS MOUND 3 $ V-�`� <br /> ELEVATION DIFFERENCE BETWEEN � <br /> LOWEST FLOOR & MOUND SITE -2 FEET , <br /> PIPING LENGTH PUMP TO MOUND 30 FEET, �,,�� `� � <br /> . .� <br /> CALCULATION QUANTITIES: y� <br /> TOTAL PERFORATIONS PER BED 36 � <br /> � <br /> C� <br /> FLOW RATE 27 GPM / �.�"'�� �� <br /> SOIL LOADING RATE 0.79 PD/SQFT `� ��`�� <br /> BASAL WIDTH RATIO 1.5 ,. � �t 1 { <br /> REQUIRED BASAL WIDTH 48 FEET . ,��'�' ,� �� �'j ' � <br /> MINN. DOWNSLOPE DIKE WIDTH �`� � ��` ,/��� M,� <br /> FOE 3/1 UPSLOPE WIDTH 5 f'' <br /> FOR 3/l, DOWNSLOPE WIDTH 11 FEE�. �+�>�r�,��„ �,.�►���-�y '�`��.��: � <br /> INITIAL DOWNSLOPE WIDTH 14 FEET� ° ��,�u�:°� , <br /> HEAD REQUIREMENTS 14 FEET� <br /> DRAINBACK QUANTITY 5 GALLONS'� <br /> DOSE QUANTITIY 113 GALLONS✓ <br /> MINIMUM RESERVE STORAGE 450 GALLONS ✓ <br /> DIMENSIONS OF THE DOUBLE MOUND: <br /> ROCK LAYER SIZE - 1' x 10 ' x 19 FEET'� <br /> SEPERATION BETWEEN ROCK BEDS 4 FEET '� f ;� <br /> TOTAL DOUBLE MOUND WIDTH @ r��: �;�..�,�*' , � <br /> BASE 43 FEET `�.fE��� M � <br /> HEIGHT @ DOWNSLOPE EDGE 3. 3 FEET �'t1�.•�-'E'� Cu. <br /> HEIGHT @ UPSLOPE EDGE 3 . 0 FEET ✓ <br /> MINIMUM SAND LAYER THICKNESS 1 FEET �,� `;�r��,r ' '�'" <br />