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GCCS will be operated to collect LFG at a sufficient rate, [per the definition in §60.751] <br />by maintaining a negative gauge pressure at all wellheads without causing air infiltration. <br />Application of a negative gauge pressure and minimization of air infiltration will be <br />verified by monitoring the static pressure and nitrogen (balance gas) or oxygen <br />concentrations of the LFG at the wellhead. <br />4.7.5 Control Systems <br />§60.752(b)(2)(iu) Route all collected gas to a control system that <br />complies with the requirements in either paragraph (b)(2)(iii)(A), (B) or <br />(C) of this section. <br />Since the Foothill Landfill will utilize an open flare as a control system, the required <br />operational performance of the flare is stipulated by §60.752(b)(2)(iii)(A) and <br />§60.752(b)(2)(iii) (B), which state: <br />§60.752(b)(2)(W) Route all the collected gas to a control system that complies <br />with ri*W)WHIs in elthe`r` parrikWh (b)(2)(iii) (A), (B), or (C) of this section. <br />§60.752(b)(2)(iii)(A) An open flare designed and operated in accordance with <br />§60.18. <br />All collected LFG sill be routed to an open flare designed in accordance with §60.18, and <br />operated in accordance with §60.752(b)(2)(iii)(B)(2). Operation within this range will be <br />documented by the recording devices in the flare station. <br />In accordance with §60.756 of the NSPS, the flare stack temperature and LFG flow rate <br />will be monitored and recorded. The flare stack temperature will be monitored to verify <br />the presence of a flame using thermocouples installed within the flame. The LFG flow <br />rate will be monitored using a gas flow meter installed within the LFG piping leading to <br />the flare to verify operating within the range specified by §60.18. <br />Foothill Sanitary Landfill 18 Public Works/Solid Waste <br />LFG CS Design Plan County of San Joaquin - March 10, 2005 <br />