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Sampling Equipment <br /> Interim gas sate lin <br /> P 8 Probes were used to monitor subsurface gafts at the landfill <br /> . eter. <br /> Probe consists of a 5-foot long, Yrinch diameter ess steel t , + - <br /> p'pe, with f, tach holes <br /> Staggered,every 2 inches at the bottom f 8 inches-to allow for gases•to mia into the proms. A <br /> pointed tip was welded to the end of die probe for better penotraaon. <br /> A ball valve and brass fitting.were hmtalled at the top of each probe to contain gas pr=ures and <br /> fac° .tate:instrument hook-up tri the probe.The valves were left closed except- leP monitoring <br /> m'hwrument readin& Eacli probe is tagged with•a bra=t- plate and identified as "GP-1" thm <br /> ugb <br /> "GP-10'1. <br /> AGA-90 Landtec lafra-red•Ga�s Analyzer was used to monitor m_ ethane, carbon.diode.(C42), <br /> and oxygen(®2)Ievcls at each probe location.The analyzerwas calibrated for methane, C®z,and <br /> 47 prior to use in the field..Calibration.logs are.included.in this report. <br /> Gas Monitoring - <br /> Amtt. <br /> b'c air m of methane, oxygen, carbon dioxide; and e4ic •yy �-� <br /> taken at trachgas probe location. Those readings were recorded <br /> and-the . ems•was <br /> to the probe. ?hc gyral-ve was opened and,probc.gas pressure <br /> tntasurements were tsdcen <br /> The probe was thea purged fortwo. probe volume'& .R=&W then roffccted at <br /> 2OPrOxilmLely 30- to ad '..a stable was .Obtain&.• nese <br /> measmmtuts of methane, oxygen, carbon dioxide, and ar;mbwnt bamractac pressure we m then <br /> rrxordcd <br /> Monitoring was also conducted at various locations indirce building sites for the <br /> ce of raethane gas. Monitoring was conducted at the office trailer at the errtrance to the <br /> landfik trailer boxes at the service shop, and trader boxes at the transfer building. These <br /> locat'ons were monitored for any gas pockets at the foundation and near any opening from the <br /> floor such as piping hales,electrical conduits,orlloor <br /> LYSIMETERS <br /> Lysirracteis were sampled rising the following statidard protocol. <br /> 1• Prior to sampling lysurietem the pressure-vacuum equipment is checked-and cleaned. <br /> 234M849-Fo1%2330 A°12 20M J*24, 000 <br /> W_ <br />