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SourceSumiLisa.2005.OurDrinkingWateratRisk.Table4Hydraulicfracturingchemicalsexceedingawaterqualitystandard.OilandGasAccountabilityProject.DurangoCO.p.8.SourceEPA816-R-04-003.Figure4-8.SourceEPA816-R-04-003.Figure4-9.Benzene313563MCLNaphthalene1409420705RBC1-methylnaphthalene71340203567MCP2-methylnaphthalene34974121289RBCFluorenes31320219014RBCPhenanthrenes783030026MCPAromatics5742002002871MCPEthyleneglycol285788730004RBCMethanol2360700001825012935RBCOneothebiggestopportunitiesrelatedtowaterinthedevelopmentoMarcellusshalegaswouldbethedevelopmentoenvironmentallysaechemicalsagreenracturinguid.Asearlyas2007SchlumbergerormulateditsGreenSlurrysystemoruseintheNorthSeaandGuloMexico.Approximatelyhaladozencompanieshavegreenornon-toxicuidsthatareindevelopmentbutmaynothavebeenverifedortheirenvironmentalimpacts.Thelackodevelopmentinthisareaisatremendousresearchandcommercializationopportunityortheregion.Howeverwemustkeepinmindthathowevercleanorgreentheracturinguidiswhenitisinjectedintothewelltheowbackandproducedwaterthatcomesbackoutcancarrywithitahostocontaminants.Theprimarycontaminantasmentionedearlierissaltwhichinlowconcentrationsisharmlessandusedeverydaybutwhichmakesthewaterunusableordrinkingirrigationandmosthouseholdandindustrialuses.AnotherareaoopportunityorsouthwesternPennsylvaniaistoapplyourexpertiseininstrumentandsensorstoimprovethemonitoringandcontroltechnologiesusedintheindustryFigure13Figure14.ThemassivedischargeooilintheGuloMexicoromBPsDeepwaterHorizonwellinadditiontorecentoilspillsinKalamazooMichiganandtheEOGResourcesgaswellblowoutdemonstratethatimprovementsinthesaedevelopmentoouroilandgasresourcesareworthyinvestments.Table16HFFluidConcentrationandWaterQualityStandardsChemicalCompoundEPAsestimatedpointofinjectionsconcentrationglAcceptableconcentrationindrinkingwatermglHowmanytimesmorethantheacceptableconcentrationWaterqualitystandardusedFigure13GasWellControlRoomFigure14MonitoringInjectionFluids26