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� hIO�;ND DESI�,i�t�i�'{�Tt�{SH�LT .
<br /> ` (For Flows up to TZOd gpd)
<br /> .ty. �O� � �sLmued Ss�.�e�a 4�C.ilorr�per p.r(,�)
<br /> E�ttirriated _ 7-s�. gpd h�r,a� _
<br /> ot '[yps 1 'lype 11 'Typ�s ili �►v
<br /> Qr measured --- x 1.5 = gpd• �'�
<br /> • 2 3t10 Z2S 1 i3O w�
<br /> 3 450 900 21i •�
<br /> s. s�e TA,�r�: ��vm vaL�zEs s ,� � � .�
<br /> / :r o gal?ons �- �000 G�c�o,✓ z,,..o r�ti.r � � 6ao �10 � �;". I
<br /> t /ZSG f,r/ct..- /EIMriKi �",I ivK. t 1�70 675 �� �
<br /> C. S�� (r2-fEI' �O Sltt?@V31L'3�OTl� N� �� �,� I
<br /> 1. Depth to restr.cting ?ayer = � `! ircches � �,
<br /> 2. Depth af percolation tests = /� incnes `"`'�'
<br /> � 3. Perc�Iation rate /�, p mpi 2�a� ;�,o i'�
<br /> 4. I.and s:ope ._ 3 % _ ��i s,o�ao �
<br /> osir 9 Sw C�C-i (:1�3
<br /> D. 2ZOCK LAYER DA��7SIONS
<br /> 1, Multiply flo�v rate by 0.$3 to obtain required area of rock �
<br /> layer: A x 0.83 =
<br /> 7-Sa gpd x 0.83 sq. ft./gpd •�,.��5sq. ft. �
<br /> 2, Select width oE rock layer (10 fe�t or less} _ _ /o ft_
<br /> 3. Length of rock Iayes� area+width= RR�cck Bed .
<br /> d 2 S sq. ft. �+- i� ft. � �s 2. S fr.
<br /> ti ti ti+'s ti.ti ti '\♦
<br /> � �/:,l;� S � � ��3•� }r.l•�+J./��'•
<br /> ti•ti � 1� \ ti ti�ti.4•ti
<br /> r r 7r7r 1 r•f ,� } i•r .+ r�
<br /> } ; ; ��,�•"ti,�,� �s} y.,, � idth 510 ft,
<br /> � }.} 3 r r•r.r �•�• 3 37
<br /> 1 ��ti.� ti.�.t.ti. ty� Lti.;�1��.1.V
<br /> .��r.r.3.1.r.r.�� .r7r r.1.� ..�.
<br /> E. ROCK VOLUME I - c,e:,gtli
<br /> 1. Mul*�ply :oc�: area by rock depth to get cubic teet of rock;
<br /> ��5 sc�. ft. x / f t. a 6Z 5 C.z. f t. �
<br /> 2. Divide ���by 27 cu. ft./cu_ yd, to get cubi�yazds; �
<br /> cu. ft. +2?a,Z�. / cu. yd. �
<br /> 3. Multiply cubie yards by 1.4 to get weight of ra�1c in tons; _
<br /> Z-�• / cu. vd. x 1.4 ton/cu. yd. _ ,�2 tons. �
<br /> F. ADSOR.I'TIDN WIDT�-; �� a+wsd�,s� Lnze
<br /> 1. Percalation rate i� ;op 12 inches of soil is �-3 4mpi p„�,�,�a„�,,� �•-. •...1
<br /> . �,u.p.r t� Soil Texture ,�.M �,;;,,`"
<br /> c�pu �. .«.,.+�..�
<br /> 2. S�le� allawab�e:oil loading rate f:om table; �asier thdfl 0,1 �n.sand I�a l.o�
<br /> <;,,�,- c, do gpd/f� _ o.i zo5 � sand i.2o �:oo
<br /> - a.i co s �n.s�d� ' o.ba Z_oo
<br /> b to IS ndy Loam 0.79 152
<br /> 3, Calcvlate a 'c�so tion width ratio b dividin rock la er 1�tO� �'°�` o'� Z'o�
<br /> rP Y � Y 31 xo as Si1t Loam o� �.aa
<br /> loading rate af 1.�0 gpolft2 by allowable soil loading rate; 6��� t�a��.o� o.a5 2.6�
<br /> 1-zQ d��+ D. GG �j�f� x Q 0.24 5.00
<br /> $p gp �r • Stower than 720 Ciav
<br /> "iW%�iM��ar r�w�tlMr�r��err.u�
<br /> 4, MuIt[ply adaorptfon width ratio by ro�3c layez width to get
<br /> re�uised adsorp�on width;
<br /> 2 . c� ,� io ft ¢ zO ft
<br /> ._
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