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, MOUND DESIGN WORKSHEET <br /> (For Flows up to 1200 gpd) <br /> A. FLOW �a�•�•es•w•a fl�+�+u�a.n«���, <br /> Estialated�5�2_.8Pd — gpd. "«°°r �'' �`y�'II �'p°m � <br /> or aleasured=x 1.5�_ <br /> C TANK LI UID VOLUN�S 4 eo'0o m zs'a „; <br /> B. SEP'!T Q a � �us m <br /> �- i do cz__—gallons k <br /> C. SOILS (refer to site evaluation) ,� <br /> . . i ' I '� � � � <br /> 1. Depth to restricting layer a��inches__feet �� ����,,� ,�,�„ <br /> 2. Depth of percolation tests= ) � �nches �-- � �••�•� """" <br /> 3. Texhue L=,._Percolation rate 1�s ,�� mpi '�~ " �� � <br /> !w A 1l00 !2!0 � <br /> 4. Land slope�% '.'"' �°°° '°°° '°°` <br /> D. R .D <br /> 1. Multlply flow rate by 0.83 to obtain required area of rock layer: A x 0�83 = <br /> �gpdx0.83sq. ft./gpd = 3�3sq. ft.i���=�+�o° <br /> Z. Select width of rock layer(max 10' if<120 mpi.nlax 5') _ _ft. <br /> 3. Length of rock layer=azea+width= , �- - � <br /> • „ '!i sq. ft+ �ft•_ `- ft. � � . i. <br /> ► <br /> , Width 10 . ft � <br /> <1.20mpi <10' �nS�--�-1—fr <br /> E. ROQC VOLUMfi >�20mpi <5' <br /> .1. Multiply rock area by rock depth to get cubic feet of rock;y,LQ_sq. ft. x,�' <br /> {�. _ � d CLI. �. <br /> 2. Divide cu. h.by 27 cu. ft/cu.yd. to get cubic yards; <br /> y�Q.,cu.ft. +27�.1�cu. yd. <br /> 3. Multiply cubic yards by 1.4 to get weight of rock in tons;,1�,cu. yd. x 1.4 <br /> ton/cu.yd. _�.tons. <br /> F. ABSO�Z�'ITON WIDTH tie.�a�wine�s��e�. <br /> 1. T�1 etioLn rate in top �iaches of soil is l�•s� mpi ���" ���, �� ��� <br /> wa.a..a� ce.�.a.ea �20 �.00 <br /> 0.1 a! tasd ISO 1.00 <br /> .2. Select allowable soil loadin rate from table; a�a s �.� o.eo �oo <br /> g 6»'�'0 !ie°�t,o.m`°"' oso ioo <br /> � gpd/ft� ' »»4s atk� o�o :.o <br /> �aeo c�.rt�e.. a�s za� <br /> 3. Calcv�late adsorption width ratio by dividing rocic layer <br /> s�e:;i�e:m�2o � o°`uso a:o00o <br /> loading,rate of 1.20 gpd/ft2;by allowable soil loading rate; <br /> 1.20::gpd/f�.+��gpd/�� a•e . <br /> 9�. � Multiply adsorptian width rdtio by�cock layer width to get � <br /> required.adsoiption width; <br /> •� x�ft=ae.� h <br />