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4. During an investigation, reports of conditions found ar.: <br />precautions taken will be dispatched to the Cor,-ercizl ;,';ice. <br />• Upon arrival. construction personnel will b=_ briefed b}~ .:.e <br /> supervisor at the scene on the situation and ?roceed :ri:-. <br />repair of the emergency. <br />a. The Distribution Superintendent should determine if .he <br />gas pressure should be lowered or if the line should be <br />taken out of service. Conditions should be comrunicsted <br />to the Commercial Of::.:e and the supervisor in chars of <br />the emergency should determine whether to lc:rer the <br />pressure or close valves to stop the flew of gas. ?efore <br />a decision is made to take a line out of service or .o <br />isolate a section of the nt~ws~+'sai°N system, an analysis <br />will be made of our .rRhNS M~ssioaarNs ..maps and our olan <br />for isolation, see M pP, t0 determine ~:ihich v_lves <br />must be closed. <br />b. After the decision is made as to ha.~ the escaping gas <br />will be controlled, the :co~rvwNr~ luperintendent .rill <br />request any additional manpower, equipment and materials <br />needed for the repair. The supervisor in charge zt :he <br />Commercial Office will arrange for dispatching er..plc_ees <br />to the valve locations and will coordinate the isolation. <br />c. While the repair is being made when gas has been ta~:en off <br />a line or a section of the distribution system, the service <br />department personnel will insure that all meters are valved <br />off in the isolated section. <br />d. After repairs are completed and the line has been pursed <br />• if necessary and placed in service, additional chaos should <br />-13- <br />