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is <br /> f; <br /> t, <br /> 3 . Fill the area between the bore hole and casing with proper <br /> backfill material to permit gas and water diffusion. <br /> 4 . Wire the sensors . <br /> • Additional wire (up to 500 feet) may be added as require; <br /> by splicing it to the wire provided. Follow all applici. <br /> �x. <br /> codes when splicing and wiring the sensors . Use <br /> : appropriate splicing materials and tools and keep track, <br /> sensor wire identity to ensure proper wiring at the <br /> 1 <br /> TANKGARD control unit. A below grade wiring work box ca' <br /> be used as a junction box for the splice. Follow all <br /> applicable codes . <br /> D tl <br /> 5 . Lower the sensors into respective bore holes along the <br /> d $ i <br /> � permeter of the tank or area to be monitored. <br /> 4�¢ <br /> It <br /> .-the sensors in the drilled hole located as close a <br /> possible to the area to be monitored and above the higher°; <br /> >> water table level . <br /> t <br /> 9p <br /> ° The sensors are intrinsically safe, eliminating the need ',,. <br /> for <br /> for explosion-proof enclosures. <br /> �z <br /> �l <br /> • It is recommended that the liquid sensor be placed beside,; <br /> the vapor sensor in the mounting well to ensure that the <br /> vapor sensor is not submerged in liquid . <br /> 6 . Cover the bore holes. <br /> I <br /> CAUTION <br /> i` Failure to cover bore holes may result in <br /> personal injury and/or bore hole <br /> contamination. <br /> t 8 <br /> � � ;7 <br />