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SECTION 3-ENVIRONMENTAL MONITORING PAD®3.6 <br /> been no compliance problems at the property boundaries for at least two years. Thus, there has <br /> been no action taken by regulatory agencies to require monitoring of landfill gas. <br /> As the proposed landfill expansion will include an impermeable liner, which will act as a <br /> containment structure, gas control will be necessary. Additionally, increased regulatory <br /> requirements are anticipated within the next few years. Therefore, nine new gas monitoring <br /> probes are proposed for installation around the landfill;their approximate locations are shown on <br /> the Final Grading Plan, Drawing P1. The exact location of these wells should be done under the <br /> guidance of a hydrogeologist. The actual monitoring procedures, which will address the <br /> frequency and the constituents that need to be monitored,will be best defined when the proposed <br /> regulations are confirmed and adopted. A typical gas monitoring probe is shown in Figure 3-1. <br /> Figure 3.1 <br /> TYPICAL GAS MONITORING PROBE <br /> GAS PROBE TOP WITH <br /> THREADED CAP <br /> LOCKING PROTECTIVE <br /> `. 8TEEL CASING <br /> MNCFIEM USEa <br /> N. <br /> EXIST. <br /> G1) <br /> BENTONITE SEAL <br /> ® (SLURRY OR WDRATED <br /> ID CHIPS' <br /> 1/2" PVC SCH.40 <br /> W_ w 1/8" I.D.TY®ON <br /> ¢ TUBING <br /> t <br /> 1/2"SCH.40 COUPLING <br /> PERFORATED <br /> CTAS PROBE TTP <br /> WASHED PEA GRAVEL <br /> 6" <br /> BORING - <br /> d <br /> d <br /> R.W.Beck and Associates <br /> City of Stockton <br /> 1811.002 i <br />