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........... ..._..._._.._ .._. f Conditions for til-339-17-10 (continued) Page 9 of 9 93. Each owner or operator seeking to comply with 60.752(b)(2)(i)(A)shall construct the gas collection devices using the following equipment or procedures:(1)"Me landfill gas extraction components shall be constructed of polyvinyl chloride(PVC),high density polyethylene(HDPE)pipe,fiberglass,stainless steel,or other nonporous corrosion resistant material of suitable dimensions to:convey projected amounts of gases;withstand installation,static,and settlement forces;and withstand.planned overburden or traffic loads. The collection system shalt extend as necessary .to comply with emission and migration standards..Collection devices such as wells and horizontal collectors shall be perforated to allow gas entry without head loss sufficient to impair performance across the intended extent ofcontrol. Perforations shall be situated with regard to the need to prevent excessive air infiltration;(2)Vertical wells shall be ( ' s placed so as not to endanger underlying liners and shall address the occurrence of water within the landfill. Holes and t trenches constructed for piped wells and horizontal collectors shall be of sufficient cross-section so as to allow,for their ! proper construction and completion including,for example,centering of pipes and placement of gravel backfill j Collection devices shall be designed so as not to allow indirect short circuiting of air into the cover or refuse into the f collection system or gas into lite air. Any gravel used around pipe perforations should be of a dimension so as not to penetrate or block perforations;(3)Collection devices may be connected to the collection header pipes below or above the landfill surface. The connector assembly shall include a positive closing throttle valve,any necessary seals and couplings,access couplings and at least one sampling port. The collection devices shall be constructed of PVC, HDPE, fiberglass,stainless steel,or other nonporous material of suitable thickness.(40 CFR 60.759(b))Federally Enforceable Through Title V Permit { 94. Each owner or operator seeking to comply with 60.752(b){2)(i)(A)shall convey the landfill gas to a control system in . compliance with 60.752(b)(2)(iii)through the collection header pipe(s). The gas mover equipment shall be sized to l handle the maximum gas generation flow rate.expected over the intended use period of the gas.mD-Or(g equipment using the following procedures:(1)For existing collection systems,the flow data shall be used to project the maximum flow rate. If no flow data exists,the procedures in pamgrapb.60.759(c)(2)shall be used;(2)For new collection systems,the maximum flow rate shall be in accordance;with 60.755(a)(1).[40 CPR 60.759(c)]Federally Enforceable Through Title V Permit i I N•J70.11.10,Nay tt]pp,4'of Alf-LfT .. w4'M�'.w.w••w..-•+•Mrtx.rc r.e..m. J ..r. rnm.--.v...r.-ss. ..i:.....✓w...... xn«. :..w..._..a.. a i.a .w r..ri.-... .. tun•.•rn•r«..».a_....-...a acs.: �.n ..w-t...._....... .,i. ns.nw. i