2008-P12100 - new septic system - Laserfiche WebLink

Home Browse Search

�L'�'�"`�-N �->�- c,�l'�� G. IeROiJND SLOPE WIDTH & LENGTI-i L.andslope > 1°Io slope • (l�nd�lope greater than 1%) , �over] 1. Dowizslope absorption width = absorption width (F) ° `q'�" ^ �' �, o� °a`�° g° ' � 'R"`�c minus rock layer width (D2) ___ ,,., ,�, S nd�D ft '�i , „`, � , �,a � � ft - /c� ft = �'c� {t �.� sn�9�.�; eparation_� ft ��,� �.�. Reslriclins Layer "�----..� UPs�op�1Witl��GZd) Ro<k i�ilh(D2) � ' � 2.. Calculate mound size � __ 1�__<< < f� r � �� UPSLOPE , �. Depth of clean sand fill at upslope edge of rock layer = 3 ft ininus the distance to restricting layer (C1) 3ft -�.'�t- ft = l. c? ft �. Mound height at the upslope edge of rock D-34: SLOPE MULTIPLIER TABLE .ayer = depth of clean sand for separation (G2a) L�,a ursLorE DOWNSLOPE �t upslope edge plus depth of rock la er (1 ft) S'°�e multipliersforvarious ��«�pliersforvariou5 y �� slope ratios slope ratios �lus depth of cover (1 ft) s:� 9:i s:i 6:i �:� s:i s:i 9:i s:i 6:1 �:1 � V ft + 1ft + 1ft = ;��Q �t 0 3.0 4.0 5.0 6.0 7.0 8.0 3.0 4.0 5.0 6.0 7.0 ,. Upslope berm multiplier based on land slope 1 z•91 3.85 9.76 5.66 6.54 7.41 3.09 417 5.26 6.38 7.53 �� (see figure D-34) Z Z•83 �3.70� 4.54 5.36 6.14 6.90 3.19 �,� 5.56 6.82 8.14 �. Upslope width - berm multiplier (G2c) times 3 Z•�5 3.57 9.35 5.08 5.79 6.95 3.30 4.54 5.88 7.32 8.86 �pslope mound height (G2b): 9 Z•68 3.45 9.17 4.89 5.46 6.06 3.41 9.76 6.25 7.g9 9.72 �M 1/ X �•1/ tt = � ! f t 5 2•6] 3.33 9.00 9.62 519 5.71 3.53 5.00 6.67 8.57 10.77 1 ��WNSL�PE 6 2.59 3.23 3.85 4.41 4.93 5.41 3.66 5.26 7.14 9.38 12.07 7 2.48 3.12 3.70 4.23 4.70 5.13 3.80 5.56 7.69 ]0.39 13.73 �. Drop in elevation = rocl< layer width (D2) times g Z,qz 3.03 3.57 9.05 9.99 4.SB 3.95 5.88 8.33 11.54 ]5.91 �ercent landslope (C5) = 100 , 9 236 2.99 3.95 3.90 4.30 4.65 4.11 6.25 9.09 13.04 ]8.92 �_lt X ,.��' % = 1�� _ � �� lt � 11�., •�F,��_��s 10 2.31 2.86 3.33 3.75 9.12 4.99 4,29 6.67 ]0.00 15.00 23.33 �. Downslope mound height = depth of clean 11 2.26 2.78 3.23 3.61 395 9.2ti 4.48 719 11.77 17.65 30.93 ;and for slope difference (G2e) at downslope 12 z•zl 2.70 3.12 3.49 3.80 4.08 4.69 7.69 12.50 21.93 93.75 y �ock edge plus the mound height at the � zpslop� edge of rock layer (G2b) `?>.f� ft + � (,o ft = �ft � ��_5 ^ t��- ;. Downslope berm multiplier based on percent land slop "� "� t�� '�� (see figure D-34) I i. Downslope width = downslope multiplier � �"� ��`_'��°.5 G2g) times downslope mound height (G2� ,� ►�� -� ,� _�- � r X v'��'^ ft = _.�_f t �m -~ Rock Bed � UPsj�pe f idth(G2d)�uI Widtli(D2) �a Ups ope Width(G2d)� . Select the greater of G1 and G2h as the � Length(D3)�O�S" � lownslope width: 1 tp ft o Downslope Width(G2i) ((o f, Total mound width is the sum of upslope AbsorpHon W;�w�F,�� �idth (G2d) width plus rock layer width _ �� _ D2) plus downslope width (G2i) � Totai LengU�«zk, 5�.; �, �I!__ ft + tv ft + lo ft �1�?__ft �- It� = S� . Total mound ]ength is the sum of upslope width (G2d) lus rocic layer length (D3) plus upslope widtll (G2d) I 1 ft + za.; ft + ►1_ ft = �t�•5 feet It,, �Q.S I� $�•� F1I�d1 �II�eI1S10I1S: �`? ?� ��.5'��1�= , � 1lereby certify that I have completed this work in accordance witlz applicable ordinances, rules and laws. ! :: i. - �� . �.�-�-- �.>. �., ,..,__,......___ (signahire) ��.5� (license#) 1- a.9 -o� (date _ )