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� USTP Pressure Distribution t°;;� � <br /> Minnesota Pollution Design Worksheet U�IV�ERSITY <br /> ControlAgency OF MI� NESOTA �� �� '��,`�,,,'`� <br /> Project ID: v 07.1A.15 <br /> 1. Media 8ed Width: 10 ft <br /> 2. Minimum Number of Laterals in system/zone= Rounded up number of [�Media Bed Width - 4) = 3] + 1. <br /> ( 10 - 4 ) + � _ �taterals Does not opply to at-grodes <br /> 3. designer Selected Number of Laterots: �laterals <br /> Cannot be less than tine 2 �accept in at-�radesJ <br /> 4. Select Perforation Spacing: 3.0 ft • <br /> �,--�---�--. , <br /> 5. Setect Per/oration Diometer Size: 7/32 in ��- ��- ...--_ <br /> 6. Length of Laterais =Media Bed Length - 2 Feet. <br /> 50 - 2ft = 48 ft Perforation can not be tloser then 1 foot from edge. <br /> � Determine the Number of Perforotion Spaces. Divide the tength of Latera(s by the Perforation Spacing <br /> and round down to the nearest whole number. <br /> Number of Perforotion Spaces 48 ft - �ft - 16 Spaces <br /> Number of Perforotions per Laterol is equat to 1.0 ptus the Number of Perforation Spoces. Check table <br /> 8. betow to verify the number of perforations per tateral guarantees less than a 10%distharge variation. The <br /> vatue is doubte with a center manifold. <br /> Perforotions Per Loterol = 16 Spaces + 1 = 17 Perfs. Per Laterat <br /> Maximum Nurtiber af Perfa�tioru PH Lst�tl to Cxur�Mee�109i Diuhxge Vxikion <br /> 'ilntn G crarons 7�'37 Inch Pe�fontions <br /> Perfar:t�Spacu�q iFeetl Pip�Diameter Ilnchesi Pe�fontion Spacing Pipe Diameter(inches) <br /> i 11t 1v; 2 3 fFretl t Iu tti: 2 3 <br /> 2 10 13 18 30 60 1 11 16 21 3i 6d <br /> 2�� � 12 tb 18 Sd 2z: iQ 14 20 32 N <br /> 3 a 12 16 15 52 3 9 1� 19 30 64 <br /> 3'16 Irxh Pertor�ticxu 1 '8 Irxh Perfont�ons <br /> Pipe Diametx Ilnchesi PcKfonoon Spaci� Pipe Dia�eter Iinchesi <br /> ?erforxwn Spac�nq Ifeetl <br /> � iu ti: 2 3 (Feetl � tw� ti; I 3 <br /> 2 t1 tE 26 4b 87 2 1� 33 #� 1� 1�19 <br /> �� �2 t7 2a �0 8Q 1ti. t0 30 at 69 t35 <br /> 3 t1 ib 22 37 75 3 20 29 3a 6� 12d <br /> 9• Totat Number of Perforatians equals the Number of Perjorotions per Lo[eral muttiptied by the Number of <br /> Perforated Laterals. <br /> 17 Perf. Per Lat. X �Number of Perf. Lat. = 51 Total Number of Perf. <br /> 10. Seiect Type of Manifotd Connection (End or Center): � end `_: center <br /> 11. Se(ect Lateral Diometer (See Table): 2.00 in <br />