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.� <br />' <br />� <br />� <br />� <br />� <br />' <br />� <br />�� <br />--, <br />�_ � <br />C,_� <br />�J� <br />� <br />�J <br />� <br />� <br />� <br />u <br />' <br />W-2.3 Backfilling and Ccmpaction; The requiremenr_s of Section 23062,1 "BACKFILL <br />PROCEDURE AT PIPE 7JNE" shall be modified as foll�ws: <br />Selected backfill material free from reck or boulders, or <br />other unsuitable substances, shall be deposited in the <br />trench by hand and tamped in 6" layers to an elevation of <br />one foot (1') ab�ve the top of the water main to provide <br />Class "B" bedding of the pipe, <br />Backfilling precedure above the pipe zon� shall be as state^d in Sanitary <br />Sewers, SS-2.5 page SS-2. <br />W-2.4 Anchorage of Bends, Tees, P1uQs and Valves: Except for ca;+t iron pipe on dead <br />end stubs, all plugs in tees, crosses, and gate valves; all. bends greater than <br />1/32, and all tees shall be blocked by placing concrete between the fitting <br />and the undisturbed trench wall, which concrete shall be a minimum of 12" in <br />thi�kness. The minimum area in square feet uf said blucks shall be as follows; <br />PiUe <br />Ci{i <br />Tee or P1u� <br />�; <br />1/4 Bend <br />3.1 <br />1/8 Bend <br />1.6 <br />1 /:12 Bend <br />and <br />1/16 Bend <br />� : <br />The use of 4" x 4" minimum size� timbers is permitted for pipe and fittin$s <br />with the Engineer's permission, as temporary blocking, but with concrete <br />used in additi�n and as specified above. <br />On cast iron pipe dead ends, j,�ints sha11 be tied or secured commencing w�th <br />the branch fittin�;s by installin� meci�anical joint pipe with ductile iron <br />retainer glends on joints. <br />W-2.5 Services: The water services sliall be ene inch (1") in size and sha11 extend <br />from the main Co che pr��per[y 1ic�e whei-e they wili terminaCe in a curb box. <br />Careful records shall be kepc cc_�peratively by the Ccneractor and Ownex <br />representative (En�in��r ��r I��specc.r) as t� size, Cype and l�cation af <br />service tap, Water serv�ces can be l.�cated in Che sAme trench as sewer <br />services a�nd to m�sc pruE�erly acc�minodate coi�nection t� the pro�erty� either <br />existing or future. 'Ties t= exiating Uuildings shall be kept cooperatively <br />by the ContrAct�r ��i�d �h,mer'� represenc��tive (�;n�ineer or 'ns�eetor), <br />Tapping o£ the corpora t ion c�?ck int :� th� ►na ii� mus t be dr �e a C 3I1 angl� �f <br />45° or �or� fr�m tnc vertic�'tl and �7de satc s1aeK �ha11 .�e �llow�d �djacent <br />to the main t� a11ow ior pc�ssiUle br��ch setclement. <br />The outer (pro�er[y line) encl�f eacl� water service shall be marked by a <br />4" x 4" t imber f�' t.� t3' i n 1 enf;� h�mheddeci 4' be 1 ow �;rade . <br />W-2.6 Pressure Testini;, Disinf'ectioi� ,;nd I'lusl�lll�.;: I'��;tin�; �,g watc�r mains silAll i�e <br />performed in �cc��rdance with �ec� i�.�n ?3p(;p �Kc��pt th�:� tesC pressur� sliall be <br />150 pounds per s.'�Uc'1Cf: 111CI1 '�tl(I shzl! be for ��r�e (1) h��ur. Since water may <br />not be ��vailable ar C}lE' C1lllt' t� > <br />f tcst, ,�it• pressure ma�� be� utilized, buC if <br />air testin�; i� used, n� 1����k.��.;�� sl���l l hc� E�ermitccd. <br />