Gude Landfill 150 LFG Monitoring Report Fourth Quarter 2015 i x0000x0000 xAttxachexd xBottxom xBBoxx 6x003x01 3x625x25 7x739x04 4x957x9 ID: 843581
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1 GudeLandfillLandfill Gas Monitoring Repo
GudeLandfillLandfill Gas Monitoring ReportFourth Quarter 2015(October 2015 December 2015)Prepared By: CB&I16406 U.S. Route 224 EastFindlay, Ohio 45840For the: GudeLandfillPresented To:Maryland Department of the Environment1800 Washington Blvd. Suite 605Baltimore, MD 21230January 10 Gude Landfill – LFG Monitoring Report Fourth Quarter 2015 i �� &#x/Att;¬he; [/; ott;&#xom ];&#x/BBo;&#xx [6;�.03; 3;.25;% 7;.39; 4; .57; ]/;&#xSubt;&#xype ;&#x/Foo;&#xter ;&#x/Typ; /P; gin; tio;&#xn 00;&#x/Att;¬he; [/; ott;&#xom ];&#x/BBo;&#xx [6;�.03; 3;.25;% 7;.39; 4; .57; ]/;&#xSubt;&#xype ;&#x/Foo;&#xter ;&#x/Typ; /P; gin; tio;&#xn 00; &#x/MCI; 0 ;&#x/MCI; 0 ; &#x/MCI; 1 ;&#x/MCI; 1 ; &#x/MCI; 2 ;&#x/MCI; 2 ;TablContentSectioPageBackgroundSubsurfaceMethane MonitoringExplosiveMonitoringWithinSiteStructuresWeeklySubsurfaceMethaneMonitoringPropertyBoundarMethanMitigationPlanTablNo.PageSummaryQuarterlySubsurfaceMethaneMonitoringFigurNo.MethaneMonitoringLoctionsAppendiceFielDataQuarter
2 lyProbeData Gude Landfill – LFG
lyProbeData Gude Landfill – LFG Monitoring Report Fourth Quarter 2015 1 �� &#x/Att;¬he; [/; ott;&#xom ];&#x/BBo;&#xx [6;�.03; 3;.25;% 7;.39; 4; .57; ]/;&#xSubt;&#xype ;&#x/Foo;&#xter ;&#x/Typ; /P; gin; tio;&#xn 00;&#x/Att;¬he; [/; ott;&#xom ];&#x/BBo;&#xx [6;�.03; 3;.25;% 7;.39; 4; .57; ]/;&#xSubt;&#xype ;&#x/Foo;&#xter ;&#x/Typ; /P; gin; tio;&#xn 00; &#x/MCI; 0 ;&#x/MCI; 0 ; &#x/MCI; 1 ;&#x/MCI; 1 ;1. BAC K G R O U N D &#x/MCI; 2 ;&#x/MCI; 2 ; &#x/MCI; 3 ;&#x/MCI; 3 ;TheMontgoeryCountyDepartEnvironentalProtectiDivisioSoliste ServicesEP/DSWS)preparedobtainedrylandDepartenttheEnvironent(MDE) approvaLandfilMonitorinPla(LFGMPcloseGudLandfilApri2009FGMpreentinformatioprocedunecessarimpleland(LFG)onitoringrogtheLandfill.TheLandownedand aintainedDEP/DSWS.TheGudeLandfillcatedGudeDrive,Rockville, MarylandMontgoeryCounty.TheLFGrequiresquarterlyonitoringthenitoringwellslocatedalongtheGude Landfillpertyaryandwitctures.addition,conductsweeklyLFG monitoringthewellslo
3 catedalonpropertboundaryLFGmonitoringper
catedalonpropertboundaryLFGmonitoringperforassessthepotentialforsubsurfaceigrationLFG,specifically,forthepresenceethane gasbeyondthelandfillproperty. Theregulatorystandardconcerningthecolletionandmonitoringexplosivegases(i.e. ethane)solidwastelandMarylandestalishedtheCodeMarylandRegulations (COMAR)TitleSubtitleChapterPart03B(9)COMAR26.04.07.03B(9)facility designeoperatesucmannthaconcentratioexplosivgases generatedthefacilityexceedspercentthelowerexplosivelimitsforthefacility structures,excludingcontrolrecoverysystemcomponents,loweexplosivlimit forthegasesthepropertyAccordingthisstandard,ethaneconcentratioresultingthepresenceLFGsitestructuresGudeLandfillcannotexceedpercentthelowerexplosiveLEL)(1.25percentvolue),and ethane concentraticannotexceedperceLELpercevolutheLandfillpertyary.SUBSURFACE METHANE MONITORINGTheGudeLandntlyhasenteen(17)peranentLFGplianceonitoringwells thatarelocatedalongthesouthandnorthwestpropertyboundaTen(10)theseventeen (17)peranentLFGnitoringwellswereinsalleJun2010torinwells consismultideptprobedifferindepthsshalloweet;intrmediatefeet;anddeepeetthatarespacedteralsapproxiatelyfeet. Severalthewellsaresingledepthprobes dueshallowgroundwaterconditions.The mo
4 nitoringwellsprovideediathroughwhichLFGe
nitoringwellsprovideediathroughwhichLFGeasuredfromvariousdepths fromthejacefillarea.Themonitorellsaremberedthroughthe northwestslopeandthroughthesouthslope.Allonitringlocationscanbe foundtheattachedgureTheproposedmonitoringwellcatedbetweenandcouldinstlledmpetentandstrutionolitionateriencounteredthesubsrface.December201CB&IperfortheourthuarterOctoberDecemberonitoringeventfortheLFGnitoringwellsalongGudeLanfillproerty boundary. CB&IutilizedLandtecGEMInfaredGasAnalyzer(GEM)onitorfor Gude Landfill – LFG Monitoring Report Fourth Quarter 2015 2 �� &#x/Att;¬he; [/; ott;&#xom ];&#x/BBo;&#xx [6;�.03; 3;.25;% 7;.39; 4; .57; ]/;&#xSubt;&#xype ;&#x/Foo;&#xter ;&#x/Typ; /P; gin; tio;&#xn 00;&#x/Att;¬he; [/; ott;&#xom ];&#x/BBo;&#xx [6;�.03; 3;.25;% 7;.39; 4; .57; ]/;&#xSubt;&#xype ;&#x/Foo;&#xter ;&#x/Typ; /P; gin; tio;&#xn 00; &#x/MCI; 0 ;&#x/MCI; 0 ; &#x/MCI; 1 ;&#x/MCI; 1 ;thefollowingparaeterswithintheLFGonitoringwells:ethane,carbondioxide,oxygen, balancegas(assunitrogen)andrelat
5 iveessuretaticpressre).Theprocedurefor o
iveessuretaticpressre).Theprocedurefor onitorinfollowsquicconnecfittiattachedbothendinletubing, whichattachedtheGEMandintothecorrespondingfittingLFGmonitoringwell. theturnewhiccreatevacuuonitorinweland pling(i.e.onitoring)itiated.ContinuousonitoringperfortheLFGuntilall readingsbilize,periodthaninute,afterwhichthereadingsaved. Tablebelow(andAppendisummarizestheonitoringdatatheLFGmonitoring wells.Oneethaneexceeerenitoringwellsringthisquarterly monitoringevent. TABLE 1 SUMMARY OF QUARTERLY SUBSURFACE METHANE MONITORING (December 16, 2015) Monitoring Well Name CH4 %vol CO2 %vol O2 %vol Balance (%vol)Relative Pressure (in. MW01 0.1 0.3 20.6 79 0.14 MW02 0 4.4 17.4 78.2 0.11 MW03D 0.1 0.2 20.9 78.8 0.13 MW03I 0 0.1 20.9 79 0.06 MW03S 0 0.6 20.4 79 0.1 MW04D 0.1 0.2 20.8 78.9 0.14 MW04I 0 0.1 21.1 78.8 - 0.06 MW04S 0 0.1 21.1 78.8 0.09 MW05D 0 0 21.2 78.8 0.04 MW05I 0 0 21.2 78.8 0.08 MW05S 0 0.1 21.1 78.8 0.12 MW06D 0 0.1 21.1 78.8 0.09 MW06I 0 0.1 21 78.9 0.1 MW06S
6 0 0.9 19.7 79.4 0.1 MW07I 0
0 0.9 19.7 79.4 0.1 MW07I 0 0.1 21.1 78.8 0.07 MW07S 0 0.1 21 78.9 0.09 MW08D 0 0.2 21 78.8 0.17 MW08I 0 0.3 20.9 78.8 0.11 MW08S 0 1.5 19.8 78.7 0.11 MW09D 0 0.1 21.1 78.8 0.07 MW09I 0 0.6 20.7 78.7 0.1 MW09S 0 0 21.2 78.8 0.11 Gude Landfill – LFG Monitoring Report Fourth Quarter 2015 3 Monitoring Well Name CH4 %vol CO2 %vol O2 %vol Balance (%vol)Relative Pressure (in. MW10D 0 0.1 21.1 78.8 0.07 MW10I 0 1.7 19.7 78.6 0.14 MW10S 0 0.4 20.8 78.8 0.11 MW11S 0 0.4 21 78.6 0.12 MW25D 0 1.3 20.2 78.5 0.11 MW25S 0.1 2.7 18.5 78.7 0.1 MW26S 42.1 31.1 0.9 25.9 0.11 MW27S 0 0.1 20.7 79.2 0.09 MW28S 3.7 1.1 15.7 79.5 0.12 MW29S 0 0.2 20.7 79.1 0.12 MW30S 0.1 0.5 20.5 78.9 0.1 Note 1. % vol. = Percent by VoluNotein.O. = Inches of ater3. EXPLOSIVE GAS MONITORING WITHIN ONSITE STRUCTUREStheGudeLand(6)resonitoredthepreseexploivearto
7 f thequarterlyLFGonitoring:Men’sShe
f thequarterlyLFGonitoring:Men’sShelterandRedevelopentExpansion;LFGFlaretation Shed;andLandrgyFacilityStoraContiner,SwitcgearEncloure,andthe Forer Power Plant Building.December 16CB&IperfotheFourthQuarteronitorievent.Using the GEM 5000 and a Combustible Gas Monitor with sample pump, CB&I conducted methane monitoring inside the onsite structures located at the Oaks Landfill. The GEM 5000 measures methane (% vol.), carbon dioxide (% vol.), oxygen (% vol.), and gas balance (% vol.). The Combustible Gas Monitor measures CH4 (ppm) and O2 (% volume). CB&I Staff walked through the interiors of the structures and monitored the perimeter wall interface, floor to wall interface in hallways and rooms, floor penetrations, and other likely potential gas pathways as well as the exterior perimeter of the structures.bustiblegasethane)wasdetectedanythesix(6)buildingstheGude Landill duing the quaerly onitoing event. Gude Landfill – LFG Monitoring Report Fourth Quarter 2015 4 �� &#x/Att;¬he; [/; ott;&#xom ];&#x/BBo;&#xx [6;�.03; 3;.25;% 7;.39; 4; .57; ]/;&#x
8 Subt;&#xype ;&#x/Foo;&#xter ;&#x/Typ;&#x
Subt;&#xype ;&#x/Foo;&#xter ;&#x/Typ; /P; gin; tio;&#xn 00;&#x/Att;¬he; [/; ott;&#xom ];&#x/BBo;&#xx [6;�.03; 3;.25;% 7;.39; 4; .57; ]/;&#xSubt;&#xype ;&#x/Foo;&#xter ;&#x/Typ; /P; gin; tio;&#xn 00; &#x/MCI; 0 ;&#x/MCI; 0 ; &#x/MCI; 3 ;&#x/MCI; 3 ;3. WEEKLY SUBSURFACE METHANE MONITORING AT PROPERTY BOUNDARYMonitorinResultsadditioCB&Iquarterlonitring,DEPperforklyonitoringthe LFGonitoringwellsarelocatedalongGudeLandfillproerty oundary.accordace withtheLFGMPandsuppleentalcorresponencewithMDE,LFG(i.e.ethane)exceedances thawereasureweeklmonitoringareresethisrterepot. Docuentationandanationeasuredethanegasexceedaces(ofpreviquarterly monitoringevents)andcorresponingresponitigateexceedancearealso providedherein.Duringtheourth Quarterasuredconcetrationsethane26Sintittentlyexceeexistingregulreqirements.likelythateasured ethaneexceedanceswereduebinationfactors:waterggedconditionssubsurface,andchangisubsurfaceconditionsduewasteassdecomposition,wastese proxiity tothe proprtyline, and se interittent systemdownti resulttheethaneexceedances,CB&Iperfowellfieldadjustentsprove vacuumandconductedfollowgasonitoring.Al
9 lmonitoringwellarecurrentlyin plianceand
lmonitoringwellarecurrentlyin plianceandall,ept26Snterittentexceedancs),ainedullyin copliance during the entiFourthQuarter of 201Appendipresearytheethaneexceedancesthatwererecordedduring theFourthQuarter of 201METHANEMITGATION PLANresultethaneexceedanethaneitigationplanwasimpleentedtheFirst QuarterTheplanincludesmultistepstakeediategasbeingdetctedthe monitoringnetwork.instanceswhereelladjentswereinsuicieelevatedthaneconcentrations,theCountyelectedexpandthecollectionsystemto contrigration.JanuaryfourLFGextractionellsweretalledthe vicinityandresponseelevatedethanedetectedthatarea.Mayof 2014extractiowellwerinstalledcontrol ethaneigrationtheareaprobes andterwellieldjustentsdidnotdecreasetheethaneconcentrationsbelowpercent by volu Duringthefourth quartefrequendetectionhavereoccurredprobeand an initialnsethedetetionseverentshavebeenadethecollectionsystem totryexertorevacuumtheadjaceLFGextractionwells.Thevacuumwasincreaat the blowelare sttion thewellfieldwasstedtheiciityprobesincreae gascollectionfromthisareathelandfill.djacewellswerealsocheckedforhighwater levels,ighwatvelstectedanywells.Theethaneitigatiactivities Gude Landfill – LFG Monitoring Report
10 Fo
Fourth Quarter 2015 5 �� &#x/Att;¬he; [/; ott;&#xom ];&#x/BBo;&#xx [6;�.03; 3;.25;% 7;.39; 4; .57; ]/;&#xSubt;&#xype ;&#x/Foo;&#xter ;&#x/Typ; /P; gin; tio;&#xn 00;&#x/Att;¬he; [/; ott;&#xom ];&#x/BBo;&#xx [6;�.03; 3;.25;% 7;.39; 4; .57; ]/;&#xSubt;&#xype ;&#x/Foo;&#xter ;&#x/Typ; /P; gin; tio;&#xn 00; &#x/MCI; 0 ;&#x/MCI; 0 ; &#x/MCI; 1 ;&#x/MCI; 1 ;perforduringthisquarterweresuccessfuldecreasingtheethaneconcentrationsthese probes to below 5 percent by volume beforethefirstquarteronitoringevent.CountCB&Iwillcontinueimpleportionstheethane itigationplancessarykeepthecomplianwithsubsurethane requireents.TheCountycurrntlyinvestigatingexpansionthecollectionsystemto allow for improved gas colletiontheareaand W Gude Landfill – LFG Monitoring Report Fourth Quarter 2015 Figures SCALE IN FEETrt')rt')FIGUREMETHANEMONITORINGLOCATIONS Gude Landfill LFG Monitoring ReportFourth Quarter 2015
11 AppendiFiel TableGud
AppendiFiel TableGudeLandfill-4thQuarterMonitoringProbeResultsNameDate/Time CH4 (% by vol.) CO2 (% by vol.) O2 (% by vol.) Balance (% by vol.) Relative Pressure (inWC) COMMENTS MW01 12/16/15 8:37 AM 0.1 0.3 20.6 79 0.14 MW02 12/16/15 9:25 AM 0 4.4 17.4 78.2 0.11 MW03D 12/16/15 9:35 AM 0.1 0.2 20.9 78.8 0.13 MW03I 12/16/15 9:33 AM 0 0.1 20.9 79 0.06 MW03S 12/16/15 9:32 AM 0 0.6 20.4 79 0.1 MW04D 12/16/15 9:48 AM 0.1 0.2 20.8 78.9 0.14 MW04I 12/16/15 9:47 AM 0 0.1 21.1 78.8 - 0.06 MW04S 12/16/15 9:38 AM 0 0.1 21.1 78.8 0.09 MW05D 12/16/15 9:53 AM 0 0 21.2 78.8 0.04 MW05I 12/16/15 9:53 AM 0 0 21.2 78.8 0.08 MW05S 12/16/15 9:49 AM 0 0.1 21.1 78.8 0.12 MW06D 12/16/15 10:12 AM 0 0.1 21.1 78.8 0.09 MW06I 12/16/15 10:11 AM 0 0.1 21 78.9 0.1 MW06S 12/16/15 9:55 AM 0 0.9 19.7 79.4 0.1 MW07I 12/16/15 10:17 AM 0 0.1 21.1 78.8 0.07 MW07S
12 12/16/15 10:13 AM 0 0.1 21 78
12/16/15 10:13 AM 0 0.1 21 78.9 0.09 MW08D 12/16/15 10:25 AM 0 0.2 21 78.8 0.17 MW08I 12/16/15 10:20 AM 0 0.3 20.9 78.8 0.11 MW08S 12/16/15 10:19 AM 0 1.5 19.8 78.7 0.11 MW09D 12/16/15 10:32 AM 0 0.1 21.1 78.8 0.07 MW09I 12/16/15 10:30 AM 0 0.6 20.7 78.7 0.1 MW09S 12/16/15 10:26 AM 0 0 21.2 78.8 0.11 MW10D 12/16/15 10:32 AM 0 0.1 21.1 78.8 0.07 MW10I 12/16/15 10:36 AM 0 1.7 19.7 78.6 0.14 MW10S 12/16/15 10:33 AM 0 0.4 20.8 78.8 0.11 MW11S 12/16/15 10:39 AM 0 0.4 21 78.6 0.12 MW25D 12/16/15 9:09 AM 0 1.3 20.2 78.5 0.11 MW25S 12/16/15 9:08 AM 0.1 2.7 18.5 78.7 0.1 MW26S 12/16/15 9:01 AM 42.1 31.1 0.9 25.9 0.11 MW27S 12/16/15 8:55 AM 0 0.1 20.7 79.2 0.09 MW28S 12/16/15 8:53 AM 3.7 1.1 15.7 79.5 0.12 MW29S 12/16/15 8:50 AM 0 0.2 20.7 79.1 0.12 MW30S 12/16/15 8:44 AM 0.1 0.5 20.5 78.9 0.1 Gude Landfill LFG Monitoring ReportFourth Quarter