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(1f) Paragraph 19.4.5 shall be deleted. (18) Paragraph 19.4.9 shall be or Device and Minimum Pipe Size the following: "!-later Heater. changed by adding under Type of Fixture and immediately after !gall Hydrant 2, 3/4" (19) Paragraph 19.4.12 shall.be changed to read as follows: "19.4.12 Water Supply Control: An approved stop and waste shut -off valve shall be installed in the water service pipe on the property side of the meter, adjacent to the City Meter Box. Said va tve. shall be enclosed in:� plastic valve box with a removable cover equipped with �Icut off key. There shall be a six (6) foot minimum seperation of the valve from any sewer clean out plug. (20) Paragraph 22.2.1 Change first sentence to read "All pipe used for the installation, extension, alternation, or repair of any gas piping small be new, standard - weight black steel, ployethylene or tin lined copper, free from splits, internal obstruction or other defects. (21) Paragraph 22.2.2 The second sentence is changed to read as follows: "Polyethylene tubing shall be manufactured i.n.accordance aiith requirements for PE 2306 or equivalent tubing in specifications for Plastic.0as Pressure; Tubing, Pipe and Fittings. ASTM Designation D- 2513766T. The last sentence is changed to read as follows: This material shall be connected together by use of flared fittings or compression fittings and screwed connections and be installed in accordance with manufacturer's recomm.endations.- The following sentence shall.be added: "Polyethylene pipe shall not be flared, threaded or extended above ground level." (22) Paragraph 22.2.3 The first sentence is changed to read as follows: "Service lines underground shall be polyethylene pipe and fittings conforminn to A.S.T.M. D- 2513 -57 and C.S. 255 -63 or black steel protected against soil corrosion with an approved type protective coating and sacrificial w anode and shall be installed according to manufacturer's recommendations. The following shall be added: Polyethylene pipe shall be installed with an electrically conductive tracer wire and shall not extended above around level.Customer portion of underground service pipe connected to high pressure gas shall not be less than 3/4 inch in size and those connected to low pressure gas shall not be less th4n 1 -1/4 inch in sizes provided size is sufficient for capacity requirements. Metal casing may be used in lieu of tracer wire.,. (23) Paragraph 22.2.4 Add third sentence: Polyethylene pipe 3/4 inch and larger may be connected to the same grade and specification material by an approved heat fusion method. (24) Paragraph 22.2.5 Sentence two and three shall be changed to read as follows: "Fittings 3 inches and smaller shall be of black malleable iron but cast -iron fittings may be used in sizes above 3 inches. An approved type plug valve shall be installed in the meter loop on the street side or at the house riser where the meter is located at the curb or property line.