Microsoft Word - 2015_0724_HAI_Super Salvage



REPORTON

ASTMPHASEIENVIRONMENTALSITEASSESSME NT

ANDSUBSURFACESAMPLING

SUPERSALVAGEINC.PARCELATBUZZARDPOINT,

SQUARE0605,LOT0802

WASHINGTON,DC



by

Haley&Aldrich,Inc.

McLean,Virginia





for

McKissack&McKissack,Inc.

Washington,DC



FileNo.40223‐002

July2015

www.haleyaldrich.com



www.haleyaldrich.com

24July2015

FileNo.40223‐002



McKissack&McKissack

901KStreet,NW6THFloor

Washington,DC20001



Attention: MarkBabbitt

VicePresident&RegionalPracticeLeaderInfrastru cture



Subject: ASTMPhaseIEnvironmentalSiteAssessmentandSubsurfaceSampling

SuperSalvageInc.ParcelatBuzzardPoint,Square0605,LOT0802

Washington,DC 



LadiesandGentlemen:



TheenclosedreportpresentstheresultsofaPhaseIenvironmentalsiteassessment(PhaseIassessment)

withPhaseIIsubsurfacesamplingconductedattheabove‐referenced

SuperSalvageInc.(“SuperSalvage”),

Square0605,Lot0802,inWashington,DC(hereinreferredtoasthe“subjectsite”).APhaseIassessment

wasconductedbyHaley&Aldrich,Inc.(Haley&Aldrich)forsevenparcelsatBuzzardPointproposedfor

redevelopmentasaprofessionalsoccerstadium,inaccordancewithourproposaltoMcKissack&McKissack

dated28June

2013(“Agreement”).TheresultsofthePhaseIIsubsurfacesampling,performedtoevaluate

thepotentialimpactof“recognizedenvironmentalconditions”(RECs),arealsoincludedinthisreport.



OurconclusionsregardingthepresenceandpotentialimpactofRECsonthesubjectsiteareintendedtohelp

theuserevaluatethe“business

environmentalrisk”associatedwiththesubjectsite,asdefinedinthe

ASTME1527‐05StandardanddiscussedinSection1.1ofthisreport.



Thankyoufortheopportunitytoperformtheseservicesforyou.Pleasedonothesitatetocontactusifyou

haveanyquestionsorcomments.



Sincerelyyours,

HALEY&ALDRICH,INC.



 

KarinS.HollandDavidA.Schoenwolf,P.E.

SeniorTechnicalSpecialist   SeniorVicePresident



Enclosures



HALEY&ALDRICH,INC.

7926JonesBranchDr.

Suite870

McLean,VA22102

703.336.6200



1



REPORTON

ASTMPHASEIENVIRONMENTALSITEASSESSME NT

ANDSUBSURFACESAMPLING

SUPERSALVAGEINC.PARCELATBUZZARDPOINT,

SQUARE0605,LOT0802

WASHINGTON,DC



by

Haley&Aldrich,Inc.

McLean,Virginia





Theundersigneddeclarethefollowing:



Wedeclarethat,tothebestofourprofessionalknowledgeandbelief,wemeetthedefinitionof

EnvironmentalProfessionalasdefinedin40CFRPart312,§312.10.



Wehavethespecificqualificationsbase doneducation,training,andexperiencetoassessthenature,

history,andsettingofthesubjectsiteand“developopinionsandconclusionsregardingconditions

indicativeofreleasesorthreatenedreleases.”Wehavedevelopedandperform edthe“allappropriate

inquiries”(AAI)inconformancewiththestandardsand

practicessetforthin40CFRPart312.



KarinHollandDavidA.Schoenwolf,P.E.

SeniorSustainabilitySpecialist  PrincipalConsultant|SeniorVicePresident



for

McKissack&McKissack,Inc.

Washington,DC



FileNo.40223‐002

July2015



www.haleyaldrich.com



i



ExecutiveSummary



Haley&Aldrich,Inc.(Haley&Aldrich)performedaPhaseIenvironmentalsiteassessment(PhaseI

assessment)oftheSuperSalvageInc.property(hereinreferredtoasthe“subjectsite”)inWashington,

DC.Thescopeofworkisdescribedandconditionedbyourproposaldated28June2013.Asindicated

in

ourproposal,thisPhaseIassessmentwasperformedinconformancewiththescopeandlimitationsof

theAmericanSocietyforTestingandMaterials(ASTM)E1527‐05StandardPracticeforEnvironmental

SiteAssessments:PhaseIEnvironmentalSiteAssessmentProcess(ASTME1527‐05Standard)as

referencedin40Code

ofFederalRegulations(CFR)Part312[theAllAppropriateInquiries(AAI)Rule].

DeviationsfromthisStandard,and/ordatagapsandtheirsignificancearedescribedinSection1.5of

thisreport.PhaseIIsubsurfacesamplingwasalsoconductedtoevaluateissuesidentifiedduringthe

PhaseIportionoftheassessment.Ourconclusions

areintendedtohelptheuserevaluatethe“business

environmentalrisk”associatedwiththesubjectsite,asdefinedintheASTME1527‐05Standardand

discussedinSection1.1ofthisreport.



ThesubjectsiteisboundedbyapropertyownedbytheDistrictofColumbiatothenorth,

SStreet,SW

tothesouth,1

Street,SWtotheeastandapropertyownedbyRollingwoodRealEstatetothewest,

andiscurrentlyoccupiedbyasalvageyardfordiversemetalstructures.



TheobjectiveofaPhaseIassessmentistoidentifyknownandsuspect“recognizedenvironmental

conditions”(RECs),historicalRECs(HRECs),andde

minimisconditionsassociatedwiththesubjectsite,

asdefinedintheASTME1527‐05StandardandinSection1.1ofthisreport.TheobjectiveofthePhaseII

subsurfacesamplingistoprovideapreliminaryevaluationofRECsidentifiedduringthePhaseIportion

oftheassessment,includingorderof

magnitudecostandscheduleimpactsontheproposed

development.



TheASTME1527‐05Standardrequiresanenvironmentalprofessional’sopinionofthepotentialimpacts

ofRECs,HRECs,anddeminimisconditionsidentifiedonasiteduringaPhaseIassessment.Ouropinion

isrenderedwithrespecttoaREC’spotential

(high,medium,orlow)torequireremedialresponsebased

onprevailingagencyrequirementsandourunderstandingthatthesubjectsiteisoneofsevenparcels

beingevaluatedforpotentialredevelopmentasaprofessionalsoccerstadium.Ouropinionregardinga

REC'spotentialimpactonthesubjectsite(high,medium,low,or

unknown)isbasedonthescopeofour

work,theinformationobtainedduringthecourseofourwork,theconditionsprevailingatthetimeour

workwasperformed,theapplicableregulatoryrequirementsineffectatthetimeourworkwas

performed,and/orourexperienceevaluatingsimilarsites,andourunderstanding of

theclient's

intendeduseforthesubjectsite.



Soilandgroundwatersampleswerecollectedfortheevaluationofthepresenceofchemicalsofconcern

atthepotentialRECsassociatedwiththesubjectsiteasdescribedbelow.Foursamplelocationswere

inaccessible,duetoasignificantamountofconcreteorsignificant

pilesofscrapmetalbeingstoredat

theselocations.Inaddition,heavyconcretestainingwasobservedatmanylocationsatthesubjectsite.

Incertainareas,thestainingwastoothicktoconfirmtheintegrityoftheconcrete.Theseconstitutea

datagapinthisreport.



RECOGNIZEDENVIRONMENTALCONDITIONS



The

ASTME1527‐05StandarddefinesaRECas“thepresenceorlikelypresenceofanyhazardous

substancesorpetroleumproductsonapropertyunderconditionsthatindi cateanexistingrelease,a



ii



pastrelease,oramaterialthreatofareleaseofanyhazardoussubstancesorpetroleumproductsinto

structuresonthepropertyorintotheground,groundwater,orsurfacewateroftheproperty.”A

materialthreatisdefinedbytheASTME1527‐05Standardas“aphysicallyobservableorobvious

threat

whichisreasonablylikelytoleadtoareleasethat,intheopinionoftheenviro nmentalprofessional,is

threateningandmightresultinimpacttopublichealthortheenvironment.”



ThisPhaseIassessmenthasrevealedfiveKRECs,fourSRECsandfourHRECs.Detailsregardingthe

natureofthese

RECsandouropinionregardingpotentialimpactsareprovidedbelow.



KNOWNORSUSPECTRECOGNIZEDENVIRONMENTALCONDITIONS



ConsistentwithASTME1527‐05Section12.5(ReportFormat),andforthepurposesofthisassessment,

thoseRECsthathavebeenidentifiedasbeingpresentwithrespecttothesubjectsitearereferredto

as

KnownRecognizedEnvironmentalConditions(KRECs),andthoseRECsthathavebeenidentifiedasbeing

likelypresentwithrespecttothesubje ctsitearereferredtoasSuspectRecognizedEnvironmental

Conditions(SRECs).



KnownRecognizedEnvironmentalConditions



FiveKRECshavebeenidentifiedatthesubjectsitebasedonthePhaseII

subsurfacesamplingresultsat

thesubjectsiteandadjoiningproperties.



KREC#1: Potentiallyunlined/unpavedsumpatthesubjectsite

PotentialImpact: High

Explanation: On‐sitestormwaterandspillsarecapturedandpumpedtoasumpinthe

southwesternportionofthesubjectsitebeforebeingdisposedoff‐siteby

a

licensedcontractor.Thesumpcontainedlargequantitiesofoilyliquidduring

thesubjectsitevisitanditwasnotpossibletoascertainwhetherthesumpwas

linedand/orconfirmtheintegrityofthelining.Thesiterepresentativecouldnot

confirmthestatusofthesumplining.Haley&Aldrich

collectedtwosoilsamples

inthevicinityofthesumpinApril2015.Arsenic,lead,benzo(a)pyrene,and

dieselrangetotalpetroleumhydrocarbons(TPH‐DRO)weredetectedat

concentrationsaboveapplicablesoilscreeninglevels,asillustratedinTableI.



KREC#2: Heavystainingofconcreteatthesubjectsite

PotentialImpact:

 High

Explanation: Heavyconcretestainingwasobservedatmanylocationsatthesubjectsite.The

concretewasinmoderatetogoodconditionwherevisible.Inotherareas,for

exampletheareasurroundingthesumppump,thestainingwastoothickto

confirmtheintegrityoftheconcrete.Haley&Aldrich

collectedonesoilsample

inthevicinityofheavystaininginApril2015.Arsenicwasdetectedata

concentrationabovetheapplicablesoilscreeninglevel,asillustratedinTableI.

Groundwatercouldnotbecollectedinthislocation.



KREC#3: Oillayerinsecondarycontainmentunderabovegroundstoragetanks(ASTs)

at

thesubjectsite

PotentialImpact: High

Explanation: AthicklayerofoilwasobservedatthebottomoftheASTtanksintheeastern

portionofthesubjectsite.Itisunderstoodthatthebottomofthecontainment



iii



ispavedwithconcrete.However,theintegrityoftheconcretecouldnotbe

confirmed.Haley&Aldrichcollectedthreesoilandtwogroundwatersamplesin

thevicinityofheavystaininginApril2015.ArsenicandTPH‐DROweredetected

atconcentrationsaboveapplicablesoilscreeninglevels,asillustratedinTableI.



Inaddition,arsenicwasalsodetectedatconcentrationsaboveapplicable

groundwaterscreeninglevels.



KREC#4: ConcretestaininginareaofanASTatthesubjectsite

PotentialImpact: High

Explanation: ConcretestainingonpavingnexttoanASTwasobservedinthenorthern

portionofthesubjectsite.The

concretepavingwasinrelativelygoodcondition

duringthesubjectsitevisit.Howeveralargequantityofwastehad been

dumpedimmediatelyadjacenttotheASTpreventingtheHaley&Aldrich

representativefromconfirmingtheconditionoftheconcretebeneaththis

waste.Haley&Aldrichcollectedtwosoilandone

groundwatersamplesinthe

vicinityofheavystaininginApril2015.Arsenic,lead,polychlorinatedbiphenyls

(PCBs),ethylbenzene,andTPH‐DROweredetectedatconcentrationsabovesoil

screeninglevels,asshowninTableI.Inaddition,antimony,arsenic,lead,and

methylenechlorideweredetectedatconcentrationsabovegroundwater

screeninglevels.



KREC#5:

 Impactsinnorthernportionofsubjectsite/tothepropertyadjacenttonorthof

thesubjectsite

PotentialImpact: High

Explanation: Haley&Aldrichcollectedtwosoilandtwogroundwatersamples(GTW‐605‐802‐

6andGTW‐605‐802‐7)alongtheboundaryofthesubjectsiteandtheproperty

adjacenttothenorth.ArsenicandTPH‐DROweredetectedatconcentrations

abovesoilscreeninglevels,asshowninTableI.Inaddition,leadandmethylene

chlorideweredetectedatconcentrationsabovethegroundwaterscreening

level,asindicatedinTableII.



SuspectRecognizedEnvironmental Conditions 



ThefollowingSRECwasobserved

ontheadjacentpropertywestofthesubjectsiteduringsitevisitsby

Haley&AldrichforthecomprehensivePhaseIassessmentofBuzzardPointinAugustand2013and

fromalimitedPhaseIIsubsurfaceinvestigationperformedbyHaley&AldrichinSeptember2014.



SREC#1: Soilandgroundwater

petroleumimpactsthatmayhavemigratedfromsubject

site

PotentialImpact: High

Explanation: AsoilsampleobtainedfromtestboringcollectedbyHaley&Aldrichfrom

beneaththeeasternportionofthepropertyimmediatelyadjacenttothewest

inSeptember2014revealedapolycyclicaromatichyd rocarbon(PAH),

benzo(a)pyrene,andarsenic

aboveapplicablesoilscreeninglevels.Inaddition,

free‐phaseoilwasobservedingroundwateratthislocationfromadepthof7.6

feetbgsto20.9feetbgs.TPH‐DROalsoexceededapplicablegroundwater

concentrationsatthislocation.AdditionalsoilsamplingbyHaley&Aldrichin

April2015atthisadjacent

propertyrevealedthepresenceofarsenicandTPH‐

DROinsoilatconcentrationsaboveassociatedsoilscreeninglevels.



iv



Furthermore,leadandmethylenechlorideweredetectedatconcentrations

aboveapplicablegroundwaterscreeninglevel.Theimpactsmightbeassociated

withthepotentiallyunlined/unpavedsumpdescribedabove(KREC#1).



ThefollowingSRECswereobservedontheadjacentpropertysouthandsoutheastofthesubjectsite

duringsitevisitsbyHaley&Aldrich

forthecomprehensivePhaseIassessmentofBuzzardPointin

AugustandDecember2013andfromaPhaseIIsubsurfaceinvestigationperformedbyHaley&Aldrich

inDecember2013.



SREC#2: Shallowsubsurfacepetroleumimpactfromsurfacestainingorurbanfillat

Square0607,Lot0013

PotentialImpact: Low

Explanation: Apparenthydrocarbonstainswereobserved

duringasitevisiton28August2013

onanasphalt‐pavedportionofthepropertyatSquare0607,Lot0013thatis

currentlyusedasaparkinglot.Acrackwasobservedintheasphaltunderoneof

thesestainsandasoilsamplecollectedbyHaley&Aldrichfrombeneaththe

asphaltrevealedtotalpetr oleum hydrocarbons–dieselrangeorganics(TPH‐

DRO)concentrationof184milligramsperkilogram(mg/kg).ThisTPH‐DRO

detectionconfirmsthepresenceof

minorpetroleumcontaminationinshallow

soil,exceedingtheD.C.MunicipalRegulations(DCMR)

Tier0SoilStandardfor

TPHof100mg/kg.Theverticalextentofimpactiscurrentlynotknown,

althoughbasedontherelativelylowconcentrationimmediatelybeneaththe

staining,thedegreeofimpactappearstobeminor.TheTPH‐DROdetectionmay

alsoberelatedtourbanfillencounteredinthis

boring.



AnalyticalresultsforasoilsamplecollectedalongSStreet,SWfromadepthof5

to10feetbelowgradeindicatedminorpetroleumimpact(TPH‐DROat119

mg/kg).ThisTPH‐DROdetectionconfirmsthepresenceofminorpetroleum

contaminationinshallowsoil,exceedingtheDCMRTier0

SoilStandardforTPH

of100mg/kg.Benzo(a)pyrenewasalsodetectedat8.67mg/kg,slightly

exceedingtheDCRisk‐BasedCorrectiveAction(DCRBCA)ScreeningLevels(SL)

forconstructionworkerexposureof5.92mg/kg.OtherPAHsandmetals

(arsenicat4.8mg/kgandchromiumat10.3mg/kg)weredetectedat

concentrations

exceedingtheEPARegionIIIRisk‐BasedScreeningLevel(RSLs)

forresidentialsoil.Thesourceandextentofimpactisnotknown,although

urbanfillwasencounteredinthisboring,whichcommonlyyieldssimilarresults.

Apotentialexistsforsubsurfaceimpactsatadjacentsitestomigratetothe

subjectsite.



SREC#3: Minorgroundwatercontaminationassociatedwithchlorinatedsolventsat

Square0607,Lot0013

PotentialImpact: Low

Explanation: AdvantageEnvironmentalConsultants,LLC(AEC)detectedchlorinatedsolvents

(tetrachloroethylene,trichloroethylene[TCE],1,2dichloroethane,andvinyl 

chloride[VC])inagroundwatersamplecollectednearthesoutheastcornerof

thepropertyat

Square0607,Lot0013duringaPhaseIIassessmentconductedin

2005.Thesourceofthechlorinatedsolventsisnotknown;however,Geomatrix,

Inc.indicatedan“asphaltpit”inthisareaofthesubjectsiteonFigure3 oftheir

PhaseIIassessmentreportcompletedin1990.Chlorinatedsolventsdetectedin



v



groundwatermayalsobeduetomi gration fromsomeunknownsource

upgradientfromtheproperty.Agroundwatersample collectedbyHaley&

Aldrichinthisareaofthepropertyconfirmedthepresenceofminor

contaminationassociatedwithchlorinatedsolvents,includingrelativelylow

concentrationsofTCEandVC(43.9and38micrograms

perliter[µg/L],

respectively).TheVCconcentrationexceedstheEPARegionIIIRisk‐Based

ScreeningLevel(SL)forresidentialexposureviaingestion,whichmaynotbe

applicabletothesubjectsite.Theextentofimpactisnotknown,although

volatileorganiccompoundswerereportedlynotdetectedingroundwater

samplescollected

byAECatseveralotherlocationsin2005,suggestingthe

extentmaybelimitedtothesoutheastcornerofthepropertyandarethus

unlikelytoimpactthesubjectsite.



SREC#4: SubstationoperationsatPotomacElectricPowerCompany(PEPCO)Square66 3,

Lot0024

PotentialImpact: Medium

Explanation: Due

totheageofthesubstationandthenatureofactivitiestakingplace,there

isapotentialforleaks,spillsorpolychlorinatedbiphenyl‐containingmaterialsto

bepresentatthislot.Apotentialexistsfortheseimpactsatadjacentsitesto

migratetothesubjectsite.



HISTORICALRECs



TheASTM

E1527‐05StandarddefinesanHRECasanenvironmentalcondition“whichinthepastwould

havebeenconsideredarecognizedenvironmentalcondition,butwhichmayormaynotbeconsidereda

recognizedenvironmentalconditioncurrently.”



ThisPhaseIassessmenthasrevealedthefollowingfourHRECs. 



HREC#1:LUSTcase

#96030atthesubjectsiteandrelatedtoatankcontaininggasolinewasreportedto

beimpactingsoilandwasgrantedregulatoryclosure.Basedonitsstatusandimpactsbeinglimitedto

soil,impactsfromtheLUSTdonotpresentathreattohumanhealthortheenvironmentundercurrent



siteconditionsanditisunlikelythattheLUSTwillrequireadditionalregulatoryaction.



HREC#2:LUSTcase#92076onanadjacentpropertytothewestofthesubjectsiteisassociatedwitha

gasolineLUSTthathistoricallyimpactedsoilandgroundwaterunderthesubjectsite.Thestatusof

the

LUSTreleaseislistedasclosed.Basedonitsstatus,impactsfromtheLUSTdonotpresentathreatto

humanhealthortheenvironmentundercurrentconditionsanditisunlikelythattheLUSTwillrequire

additionalregulatoryaction.



HREC#3:Anon‐site20,000gallongasolineLUST(case

#93094)atonanadjacentparceltothesouthof

thesubjectsiteat

Square0607,Lot0013historicallyimpactedsoilandgroundwaterunderthesubject

siteandwasreportedinAugust1993.TheLUSTcasereceivedregulatoryclosureinMay1994.Basedon

itsstatus,impactsfromtheLUSTdonotpresentathreattohumanhealthortheenvironme ntunder

currentconditionsanditisunlikely

thattheLUSTwillrequireadditionalregulatoryaction. 



HREC#4:OpenLeakingUndergroundStorageTank(LUST)case#93051onanadjacentparceltothe

southeastofthesubjectsiteatSquare665,Lot0024,PotomacElectricPowerCompany(PEPCO)

GeneratingStation.In1993,significantgasolineanddieselcontaminationwas

discoveredinsoiland



vi



groundwateronthenorthernportionofSquare665,Lot0024.PEPCOperformedmonitoringand

remediationactivitiesduringthe1990s,removingmorethan1,000gallonsofliquid‐phasehydrocarbons

(LPH).However,thelatestgroundwatersamplingdatareviewedina2005PhaseIindicatedthattotal

petroleumhydrocarbonsandbenzene,toluene,ethylbenzeneand

xyleneswereaboveapplicable

regulatorystandardsincertainmonitoringwells.Basedonitsstatus,impactsfromtheLUSTdonot

presentathreattohumanhealthortheenvironmentundercurrentsiteconditionsanditisunlikelythat

theLUSTwillrequireadditionalregulatoryaction.



DEMINIMISCONDITIONS



TheASTM

E1527‐05Standarddefinesdeminimisconditionsasthoseconditionswhich“donotpresent

athreattohumanhealthortheenvironmentandthatgenerallywouldnotbethesubjectofan

enforcementactionifbroughttotheattentionofappropriategovernmentalagencies.”TheASTM

E1527‐05Standard

notesthat“conditionsdetermine dtobedeminimisarenotrecognized

environmentalconditions.”



ThisPhaseIassessmentrevealednodeminimisconditions.



SUMMARYANDRECOMMENDATIONS



Insummary,severalRECswereidentifiedduringthisPhaseIassessmentandsubsequentPhaseII

sampling.PhaseIIsubsurfacesamplingdescribedinthis reportdid

notdelineatetheextentof

petroleumandmetalimpactsdetectedinsoilorgroundwateratthesubjectsite,andbasedonthe

concentrationsdetected,itisouropinionthatadditionalactionmayberequiredundercurrent

conditionsatthesubjectsite.



Basedontheanalyticalresultscollectedtodate,soil

remediationmayberequiredtoreducethethreat

tohumanhealthfortheon‐Siteconstructionworkerandfuturestadiumoccupantandtoreducethe

threattogroundwaterquality.PotentialorderofmagnitudecostimpactsfromtheidentifiedRECsat

theSiterangefrom$240,000to$3,600,000.Thesecostsandtheir

associatedassumptionsare

summarizedinTableIII.Thesoilscreeninglevelsandgroundwaterscreeninglevelsusedforevaluation

ofimpactsattheSitedonotaccountforcumulativehealthrisks.Additionally,groundwaterremediation

and/orvaporintrusionmitigationintheconstructionofthestadiummayberequiredtoreducethe

threat

tohumanhealth.Thepotentialorderofmagnitudecostsforsoilremediationarebasedonthe

currentlyavailabledataunderstandingthatseveralunanticipatedSiterestrictionsassociatedwithan

activesalvageyardandunknownsubsurfacerestrictionswereencounteredduringtheinvestigation

activitiesdescribedinthisPhaseIassessment.Thepresenceofa

significantlayerofconcreteunder

portionsoftheSitealsorestrictedinvestigationatselectlocations.



TheremainderofthisreportcontainsadditionalinformationregardingthePhaseIassessment,the

resultingfindingssummarizedabove,andlimitationsaffectingthisreport.



TABLEOFCONTENTS



Page



vii



ExecutiveSummary i

ListofTables x

ListofFigures x

1. Introduction 1

1.1 OBJECTIVE 1

1.2 SITEIDENTIFICATION 2

1.3 SCOPEOFSERVICES 2

1.4 NON‐SCOPECONSIDERATIONS 3

1.5 EXCEPTIONSANDDEVIATIONS 3

1.5.1 Deviations 3

1.5.2 DataGaps 3

1.5.3 Limitations 3

2. SiteDescription 5

2.1 SITEOWNERSHIPANDLOCATION 5

2.1.1 NameofSiteOwners 5

2.1.2 NameofSiteOperator 5

2.1.3 ProjectLocusMap 5

2.2 SITEANDVICINITYDESCRIPTION 5

2.3 PHYSICALSETTING 5

2.3.1 Topography 5

2.3.2 Geology 6

2.3.3 Hydrology 6

3. PreviousReports 7

4. SiteHistory 9

5. EnvironmentalRecordsReview 12

5.1 STANDARDENVIRONMENTALRECORDSREVIEW 12

5.1.1 DescriptionsofDatabasesSearched 13

5.1.2 DetailedDescriptionofRelevantSubjectSiteListings 14

5.1.3 DetailedDescriptionsofRelevantNearbySiteListings 15

5.2 ADDITIONALENVIRONMENTALRECORDSREVIEW 15

5.2.1 D.C.DepartmentoftheEnvironment 15

5.2.2 D.C.FireandEMSDepartment 16

5.3 USERRESPONSIBILITIES 16

6. SiteReconnaissanceandKeyPersonnelInterview(s) 17

6.1 SUBJECTSITEOBSERVATIONS 17

TABLEOFCONTENTS



Page



viii



6.1.1 CurrentUseofthePropertyandGeneralDescriptionofStructures 17

6.1.2 PotableWaterSupplyandSewageDisposalSystemorSepticSystems 17

6.1.3 UseandStorageofPetroleumProductsandHazardousMaterials 17

6.1.4 DisposalofPetroleumProductsandHazardousMaterials 19

6.1.5 Odors 19

6.1.6 PCBsAssociatedwith

ElectricalorHydraulicEquipment 19

6.1.7 UnidentifiedSubstanceContainers 19

6.1.8 HeatingandCoolingSystem 19

6.1.9 StainsorCorrosiononFloors,Walls,orCeilings 20

6.1.10 FloorDrainsandSumps 20

6.1.11 HydraulicElevators 20

6.1.12 VehicleMaintenanceLifts 20

6.1.13 EmergencyGeneratorsandSprinklerSystemPumps 20

6.1.14

CatchBasins 20

6.1.15 DryWells 20

6.1.16 Pits,Ponds,Lagoons,andPoolsofLiquid 20

6.1.17 StainedSoilorPavement 20

6.1.18 StressedVegetation 20

6.1.19 SolidWasteandEvidenceofWasteFilling 21

6.1.20 WastewaterandStormwaterDischarge 21

6.1.21 Monitoring,WaterSupply,orIrrigationWells 21

6.1.22 Sanitary

SewerandSepticSystems 21

6.2 ADJOININGPROPERTYOBSERVATIONS 21

7. SubsurfaceExploration 22

7.1 DIRECTPUSHSAMPLINGANDMONITORINGINSTALLATIONS9THROUGH27APRIL201522

7.1.1 SoilSampling 22

7.1.2 GroundwaterSampling 22

7.2 SUBSURFACEFINDINGS 23

7.2.1 SoilResults 23

7.2.2 GroundwaterResults 23

8. FindingsandConclusions 25

9. Credentials 31

References 32

Tables

Figures

AppendixA–Haley&AldrichProposalDated28June2013(onCD)

AppendixB–HistoricalResearchDocumentation(onCD)

AppendixC–SiteHistory(onCD)

AppendixD–RegulatoryRecordsDocumentation(onCD)

TABLEOFCONTENTS



Page



ix



AppendixE–SitePhotographs(onCompactDisc)

AppendixF–GeoprobeReports&ObservationWellInstallationReports(onCD)

AppendixG–SamplingForms(onCD)

AppendixH–LaboratoryAnalyticalReports(onCD)



x

ListofTables



TableNo. Title



1  SummaryofSoilQualityData



2  SummaryofGroundwaterQualityData



3  OrderofMagnitudeCostandScheduleImpactsfromIdentifiedRECs



ListofFigures



FigureNo. Title



1  ProjectLocus



2  SitePlan



3  ExplorationLocationPlan





1

1. Introduction



ThisreportpresentstheresultsofaPhaseIenvironmentalsiteassessment(PhaseIassessment)and

PhaseIIsubsurfacesamplingconductedattheSuperSalvage,Inc.parcelatBuzzardPoint,Square0605

Lot0802,inWashington,DC(hereinreferredtoasthe“subjectsite”).APhaseIassessmentwas

conducted

byHaley&Aldrich,Inc.(Haley&Aldrich)forsevenparcelsatBuzzardPointproposedfor

redevelopmentasaprofessionalsoccerstadium,inaccordancewithourproposaltoMcKissack& 

McKissackdated28June2013(“Agreement”,AppendixA).PhaseIIsubsurfacesamplingwasalso

conductedonthesubjectsite in

accordancewithanagreementdated28October2013between

McKissack&McKissackandHaley&Aldrichandexecuted30October2013(“Agreement”,Exhibit1)to

McKissack&McKissack.ThisreportwaspreparedinresponsetoarequestfromMcKissack&McKissack

toprovideaseparatestand‐alonePhaseIassessmentfor

thesubjectsite.ThisPhaseIassessmentwas

performedinconformancewiththescopeandlimita tionsoftheAmericanSocietyofTestingand

Materials(ASTM)E1527‐05StandardPracticeforEnvironmentalSiteAssessments:PhaseI

EnvironmentalSiteAssessmentProcess(ASTME1527‐05Standard)tocomplywith40Code

ofFederal

Regulations(CFR)Part312(theAllAppropriateInquiries[AAI]Rule).



1.1 OBJECTIVE



TheobjectiveofaPhaseIassessmentistoidentifyknownandsuspect“recognizedenvironmental

conditions”(RECs),historicalRECs(HRECs),anddeminimisconditionsassociatedwiththesubjectsiteby

evaluatingsubjectsitehistory,existingobservable

conditions,currentsubjectsiteuse,andcurrentand

formerusesofadjoiningpropertiesaswellaspotentialreleasesatsurroundingproperties thatmay

impactthesubjectsite.RECsaredefinedintheASTME1527‐05Standardas“thepresenceorlikely

presenceofanyhazardoussubstancesorpetroleumproductson

apropertyunderconditionsthat

indicateanexistingrelease,apastrelease,oramaterialthreatofareleaseofanyhazardoussubstances

orpetroleumproductsintostructuresonthepropertyorintotheground,groundwater,orsurface

waterattheproperty.Thetermincludeshazardoussubstancesorpetroleumproducts

evenunder

conditionsincompliancewithlaws.Thetermisnotintendedtoincludedeminimisconditionsthat

generallydonotpresentathreattohumanhealthortheenvironmentandthatgenerallywouldnotbe

thesubjectofanenforcementactionifbroughttotheattentionofappropriategovernmentalagencies.”



AmaterialthreatisdefinedbytheASTME1527‐05Standardas“aphysicallyobservableorobvious

threatwhichisreasonablylikelytoleadtoareleasethat,intheopinionoftheenvironmental

professional,isthreateningandmightresultinimpacttopublichealthortheenvironment.”



Consistent

withASTME1527‐05Section12.5(ReportFormat),andforthepurposesofthisassessment,

thoseRECsidentifiedasbeingpresentwithrespecttothesubjectsitearereferredtoasKnown

RecognizedEnvironmentalConditions (KRECs),andthoseRECsidentifiedasbeinglikelypresentwith

respecttothesubject

sitearereferredtoasSuspectRecognizedEnvironmentalConditions(SRECs).The

ASTME1527‐05StandarddefinesHRECsasenvironmentalconditions“whichinthepastwouldhave

beenconsideredarecognizedenvironmentalcondition,butwhichmayormaynotbeconsidereda

recognizedenvironmentalconditioncurrently.”



TheobjectiveofthePhase

IIsubsurfacesamplingwastoprovideapreliminaryevaluationofRECs

identifiedduringthePhaseIportionoftheassessment,includingorderofmagnitudecostandschedule

implicationsonthepropo seddevelopment.Ourconclusionsareintendedtohelptheuserevaluatethe

“businessenvironmentalrisk”associatedwiththesubjectsite,

definedintheASTME1527‐05Standard

as“ariskwhichcanhaveamaterialenvironmentalorenvironmentally‐drivenimpactonthebusiness



2

associatedwiththecurrentorplanneduseofaparcelofcommercialrealestate,notnecessarilylimited

tothoseenvironmentalissuesrequiredtobeinvestigatedinthispractice.Considerationofbusiness

environmentalriskissuesmayinvolveaddressingoneormorenon‐scopeconsiderations...”



ThecompletionofthisPhaseIassessmentis

onlyonecomponentoftheprocessrequiredtosatisfythe

AAIRule.Inaddition,theusermustadheretoasetofuserresponsibilitiesasdefinedbythe

ASTME1527‐05StandardandtheAAIRule.UserresponsibilitiesarediscussedinSection5.3ofthis

report.Auserseeking

protectionfromComprehensiveEnvironmentalRespons e, Compensationand

LiabilityAct(CERCLA)liabilityasaninnocentlandowner,bonafideprospectivepurchaser,orcontiguous

propertyownermustcompleteallcomponentsoftheAAIprocessinadditiontomeetingongoing

obligations.AAIcomponents,CERCLAliabilityrelief,andongoingobligationsarediscussedintheAAI

Rule

andinAppendixXIoftheASTME1527‐05Standard.



1.2 SITEIDENTIFICATION



ThesubjectsiteisownedbySuperSalvage,Inc.(SuperSalvage)andcomprisesasalvageyardfordiverse

metalstructures.ThesubjectsiteisboundbyapropertyownedbytheDistrictofColumbiatothe

north,

SStreet,SWtothesouth,1

Street,SWtotheeastandapropertyownedbyRollingwoodRealEstateto

thewest,asshownontheProjectLocus,Figure1.



1.3 SCOPEOFSERVICES



Haley&AldrichperformedthefollowingscopeofservicestocompletethisPhaseIassessment.These

serviceswereperformedeitherby,or

underthedirectsupervisionof,anenvironmentalprofessionalas

definedbytheAAIRule.



1. Conductedvisualobservationsofsiteconditions,andofabuttingpropertyuse,toevaluatethe

natureandtypeofactivitiesthathavebeenorarebeingconductedatandadjoiningtothe

subjectsite,interms

ofthepotentialforreleaseorthreatofreleaseofhazardoussubstancesor

petroleumproducts.



2. Reviewedfederal,state,tribal,andlocalenvironmentaldatabaseinformationwithintheASTM‐

specifieddistancefromthesubjectsiteusingadatabaseservicetoaccessrecords.Used

7.5‐minutetopographicmapstoevaluatethesubject

site’sphysicalsetting.



3. ReviewedDistrictenvironmentalfilespertainingtothesubjectsiteandnearbysiteswiththe

potentialtoimpactthesubjectsite.



4. Reviewedpreviousreportspreparedforthesubjectsite.



5. Reviewedthefollowingsourcesofhistoricaluseinformation:Sanbornmaps,aerialphotographs

andtopographicmaps.





6. ContactedDistrictagenciesregardingthesubjectsiteandsurroundingpropertiesand

structures.



7. Interviewedthekeysitemanagerandpropertytenantrepresenta tives.



8. PerformedPhaseIIsubsurfacesamplingandanalysis.



3



9. Interpretedtheinformationanddataassembledasaresultoftheaboveworktasks,and

formulatedconclusionsregardingthepotentialpresenceandimpactofRECs,includingHRECs.



1.4 NON‐SCOPECONSIDERATIONS



TheASTME1527‐05Standardincludesthefollowinglistof“additionalissues”thatarenon‐scope

considerations

outsideofthescopeoftheASTMPhaseIassessmentpractice:asbestos‐containing

materials,radon,lead‐basedpaint,leadindrinkingwater,wetlands,regulatorycompliance,culturaland

historicresources,industrialhygiene,healthandsafety,ecologicalresources,endangeredspecies,

indoorairquality,bio‐agents,andmold.Theseitemswerenotincludedin

thisPhaseIassessmentofthe

subjectsite.



Alimitedassessmentofthepresenceofpolychlorinatedbiphenyls(PCBs)isincludedintheASTMwork

scope.Accordingly,ourassessmentofthepresenceofPCBsislimitedtothosepotentialsources

specifiedintheASTME1527‐05Standardas“electricalor

hydraulicequipmentknownorlikelyto

containPCBs…totheextentvisuallyandorphysicallyobservedoridentifiedfromtheinterviewor

recordsreview.”



1.5 EXCEPTIONSANDDEVIATIONS



1.5.1 Deviations



Haley&AldrichcompletedthisPhaseIassessmentinsubstantialconformancewiththeASTME1527‐05

Standard.Inour

opinion,noadditionsweremadetoordeviationsanddeletionsmadefromtheASTM

workscopeincompletingthisPhaseIassessment.



1.5.2 DataGaps



Heavyconcretestainingwasobservedatmanylocationsatthesubjectsite.Incertain areas,thestaining

wastoothicktoconfirmtheintegrityof

theconcrete.Additionally,foursamplelocationswere

inaccessibleduringPhaseIIsampling, duetoasignificantamountofconcreteorpilesofscrapmetal

beingstoredattheselocations.Theseconstituteadatagapinthisreport.



1.5.3 Limitations



Ourworkforthisprojectwasperformedinaccordancewiththe

standardsandpracticessetforthin40

CFRPart312andisconsistentwiththeASTME1527‐05StandardforPhaseIEnvironmentalSite

Assessments.SeveralorganizationsotherthanASTM,suchasprofessionalassociationsGeoprofessional

BusinessAssociation(GBA)andAGWSE,havealsodevelopedguidelinesorstandardsforenvironmental

siteassessments.

ThePhaseIassessmentpresentedinthisreportmayvaryfromthespecificguidelines

orstandardsrequiredbyotherorganizations.



ThisPhaseIassessmentwaspreparedpursuanttoanAgreementdated9July2013betweenMcKissack

&McKissackandHaley&Aldrich,whichAgreementisattach edheretoandismade

apartofthisreport.

ThePhaseIIsubsurfacesamplingwasperformedpursuanttoanAgreementdated28October2013

betweenMcKissack&McKissackandHaley&Aldrichandexecuted30Octobe r2013.Allusesofthis

reportaresubjectto,anddeemedacceptingof,theconditionsandrestrictionscontainedin

these

Agreements.TheobservationsandconclusionsdescribedinthisreportarebasedsolelyontheScopeof



4

ServicesprovidedpursuanttotheseAgreements.Haley&Aldrichhasnotperformedanyadditional

observations,investigations,studies,orothertestingnotspecifiedintheseAgreements.Haley&Aldrich

shallnotbeliablefortheexistenceofanyconditionthediscoveryofwhichwouldhaverequiredthe

performanceofservicesnotauthorized

undertheseAgreeme nts.



ThisreportispreparedfortheexclusiveuseofMcKissack&McKissackandtheirprimecontractholder,

theDistrictofColumbiaDepartmentofGeneralServices(DGS)inconnectionwiththeproposed

developmentofthesubjectsite.AcopyofthisreportwillbeprovidedtoSuperSalvage,

Inc.(Owner)in

accordancewithanAccessAgreementbetweentheOwnerandHaley&Aldrich,dated30March2015.

TherearenointendedbeneficiariesotherthanMcKissack&McKissack.Haley&Aldrichshalloweno

dutywhatsoevertoanyotherpersonorentityonaccountoftheAgreementsorthereport.

Useofthis

reportbyanypersonorentityotherthanMcKissack&McKissackortheDGSforanypurpose

whatsoeverisexpresslyforbiddenunlesssuchotherpersonorentityobtainswrittenauthorizationfrom

McKissack&McKissackandfromHaley&Aldrich.Useofthisreportbysuchotherperson

orentity

withoutthewrittenauthorizationofMcKissack&McKissackandHaley&Aldrichshallbeatsuchother

person’sorentity’ssolerisk,andshallbewithoutlegalexposureorliabilitytoHaley&Aldrich.



Useofthisreportbyanypersonorentity,includingbyMcKissack&McKissack,forapurposeotherthan

forwiththeproposeddevelopmentofthesubjectsiteisexpresslyprohibitedunlesssuch

personor

entityobtainswrittenauthorizationfromHaley&Aldrichindicatingthatthereportisadequateforsuch

otheruse.Useofthisreportbyanypersonorentityforsuchotherpurposewithoutwritten

authorizationbyHaley&Aldrichshallbeatsuchperson’sorentity’ssoleriskandshall

bewithoutlegal

exposureorliabilitytoHaley&Aldrich.



ThisreportreflectssubjectsiteconditionsobservedanddescribedbyrecordsavailabletoHaley&

Aldrichasofthedateofreportpreparation.Thepassageoftimemayresultinsignificantch angesin 

subjectsiteconditions,technology,oreconomicconditions,

whichcouldalterthefindingsand/or

recommendationsofthereport.Accordingly,McKissack& McKissackandanyotherpartytowhomthe

reportisprovidedrecognizeandagreethatHaley&Aldrichshallbearnoliabilityfordeviationsfrom

observedconditionsoravailablerecordsafterthetimeofreportpreparation.



Use

ofthisreportbyanypersonorentityinviolationoftherestrictionsexpressedinthisreportshallbe

deemedandacceptedbytheuserasconclusive evidencethatsuchuseandtherelianceplacedonthis

report,oranyportionsthereof,isunreasonable,andthattheuseracceptsfulland

exclusive

responsibilityandliabilityforanylosses,damages,orotherliabilitywhichmayresult.





5

2. SiteDescription



2.1 SITEOWNERSHIPANDLOCATION



2.1.1 NameofSiteOwners



SuperSalvage,Inc.ownsthesubjectsite



2.1.2 NameofSiteOperator



SuperSalvage,Inc.istheoperatorofthesubjectsite.



2.1.3 ProjectLocusMap



TheUnitedStatesGeologicSurvey(USGS)topographicmapforthesubjectsiteis

theWashingtonWest,

DistrictofColumbiaQuadrangle,dated1983(seeFigure1).TheUSGStopographicmapwasusedasthe

sourceforsubjectsitesettinginformation.



2.2 SITEANDVICINITYDESCRIPTION



Figure2isa SitePlanofthesubjectsiteandshowsrelevantfeaturesofthesubjectsiteand

immediately

adjoiningproperties,asdescribedbelow.Thesitecomprisessalvageyardfordiversemetalstructures.



Theareainthevicinityofthesubjectsiteisgenerallycharacterizedasurbanindustrial andcommercial.



 North:apropertyownedbytheDistrictofColumbiaandusedfortruckparkingandwood

storage.



 South:apropertyownedbySWLandH older,LLCandoperatedbyAkridge.Theproperty

comprisesaparkinglotandasmallbuildinginthenorthwesternportionutilizedforend‐of‐life

vehiclestorage.

 West:apropertyownedbyRollingwoodRealEstate.Thispropertystoresandrefurbishes

bicycles

fortheWashingtonDCCapitalBikeShareProgram.

 East:apropertyownedbyPotomacElectricPowerCompany(PEPCO)whichisvacant.PEPC O

alsoownsthepropertyadjacenttotheeastofthesubjectsitewhichisusedasanelectrical

substation,aswellasthepropertynortheastofthesubject

site,whichisusedasaparkinglot.



2.3 PHYSICALSETTING



ThesubjectSitegeologyandhydrologywereevaluatedbasedontheresultsofthePhaseIIsampling

(seeSection7ofthisreport)performedbyHaley&AldrichsubsequenttothePhaseIassessment,

availablepublicinformationorreferences,

andourexperienceandunderstandingofsubsurface

conditionsinthesubjectsitearea.



2.3.1 Topography



Topographically,thesubjectsiteanditsvicinityisrelatively flatwithagradualdownwardslopetothe

south.Thesubjectsiteisatanelevationofapproximately21feetabovesealevel(basedonthe



EnvironmentalResourcesDatareport).



6

2.3.2 Geology



AccordingtoinformationobtainedduringHaley&Aldrich’sPhaseIIsubsurfacesamplingandanalysis,

thesubjectsiteisgenerallyunderlainbyfillmaterialcomprisedofclaysandsandswithsomesilt,and

varyingamountsofgravelandsmallquantitiesofconstructiondebris.Fillwasencounteredtoadepth

ofapproximately10feetbelowgroundsurface(bgs).Beneaththefill,claysandsandswere

encountered.ThisdeeperstratumwasnotpenetratedduringHaley&Aldrich’sexplorationprogram.As

such,bedrockbeneaththesubjectsiteisanticipatedatadepthgreaterthan30feetbgs.Accordingto

informationobtainedfromthe

EDRreport,bedrockbeneaththesubjectsiteconsistsofastratified

sequenceofCretaceous–agedsedimentaryrock.



2.3.3 Hydrology



Basedonsurfacetopography,surfacewaterfromthesubjectsiteappearstoflowinasoutherly

direction.



Alsobasedontopographyandthelocationofnearestwaterbodies(theAnacostiaRiver,located



approximately0.20mileseastand0.35milessouthandthePotomacRiverlocatedapproximately0.3

mileswestofthesubjectsite),regionalgroundwaterflowisanticipatedtobetidallyinfluenced.

HydrogeologicinvestigationswerenotperformedatthesubjectsiteduringthisPhaseIassessment;

therefore,itisunknowntowhat

extentlocalizedvariationsingroundwaterdepthandflowoccuronthe

subjectsite.



AccordingtotheFloodInsuranceRateMap(FIRM)suppliedbyEDR,thesubjectsiteislocatedwithina

floodplain.PotablewaterissuppliedtothesubjectsitebytheDistrictofColumbiaWater andSewer

Authority(WASA).

Thereisnoknownmonitoringorpumpingwellslocatedontheproperty.





7

3. PreviousReports



ThefollowingreportspreviouslypreparedforthesubjectsitewerereviewedforthisPhaseI

assessment.Informationcontainedinthesereportsisincludedhe reinandsummarizedbelow.Copiesof

pertinentsectionsofthesereportsareincludedinAppendixB.



 “PhaseIEnvironmentalSiteAssessment,BuzzardPoint,Squares609

&611,2

StreetandV

Street,SW,Washington,DC,”preparedbyURSforPEPCOHoldingsInc.,dated4April2005.



 “PhaseIEnvironmentalSiteAssessment,BuzzardPoint,2

StreetandVStreet,SW,

Washington,DC,”preparedbyAdvantageEnvironmentalConsultants,LLC(AEC),forTheJohn

AkridgeCompanies,Inc.,dated10June2005.



 “AssessmentoftheBuzzardPointProperties,”preparedbyGeomatrix,Inc.,forPotomac

ElectricPowerCompany,datedMarch1990.



 “PhaseIIEnvironmentalSite

Assessment,BuzzardPoint,2

StreetandVStreet,SW,

Washington,DC,”preparedbyAECforTheJohnAkridgeCompanies,Inc.,dated10June2005.



SubjectSiteandadjacentsitetothewest:Theselotsoperatedasametalscrapyardsincethe1960s.

TheURSandAEC2005PhaseIsidentifiedtheselotson

theRCRASmallQuantityGenerator,LUST,and

USTdatabases.One2,000gallonUSTwaspermanentlyoutofuse.TheLUSTcasewasgranted

regulatoryclosure.Noadditionaldetailswereprovided.



Square0607,Lot0013,locatedadjacenttothesouthofthesubjectsite:In1990,Geomatrixcollect ed

soilsamplesfor

totalpetroleumhydrocarbon(TPH),benzene,toluene, ethylbenzeneandxylenes(BTEX),

PolychlorinatedBiphenyls(PCBs),andtoxicitymetals.Lot0013wasidentifiedas“Site2”inthereport

andwasbeingusedasafillingstationforPEPCOvehiclesatthetimeoftheinvestigation.Soilsamples

werecollectedfrom0to2

feetbelowgroundsurface.Ofthethirteensamplescollected,tenshowed

TPHconcentrationsrangingfrom100partspermillion(ppm)to360ppm.Geomatrixconcludedthat

TPHconcentrationswerefairlywelldistributedthroughoutthesite.



AtthetimeoftheAEC2005PhaseI,Square607,Lot0013wasused

asafencedparkinglotwitha

prefabricatedmetalstoragebuildingandtrailersonthesite.Square607,Lot0013wasusedforvehicle

fuelingandstoragebyPEPCOfromthelate1960suntil1993.ThreeUndergroundStorageTanks(USTs)

werelocatedon‐site:



 6,000gallongasolineUSTremoved

in1988;

 6,000gallondieselUSTremovedin1988;and

 20,000gallongasolineUSTremovedin1993andassignedLUSTcase93094duetothediscovery

ofpetroleumimpacttogroundwateratthesiteduringremovaloftheUST.Confirmatorysoil

sampleswerenotsignificantlycontaminated;however,groundwatersamples

wereabove

regulatorylimits.Onemonitoringwell(MW‐13)waslaterinstalledinthisarea.Petroleum

concentrationsinsoilwerebelowactionlimitsatthetimealthoughBTEX(1.77mg/L)andtotal

petroleumhydrocarbons(TPH,3.0mg/L)wereaboveactionlimitsforgroundwater.TheLUST

casereceivedregulatoryclosurein

May1994.





8

InMay2005,AECadvancedborings(B‐1throughB‐9,B‐27,B‐29,andB‐30)usingGeoproberigs,

screenedsoilswithaphotoionizationdetector,collectedsoilsamplesfortotalTPHdieselrangeorganics

(TPHDRO),TPHgasolinerangeorganics(TPHGRO),VolatileOrganicCompounds(VOCs),andpriority

pollutant

metals,PCBs,metals,andignitability,installedgroundwatermonitoringwells,andcollected

groundwatersamplesforTPHDRO,VOCs,andlead.Soilresultsindicated:



 TPH‐DRO/GROwerebelowdetectionlimitsinsoilexceptforDROdetectedonthesouthwest

cornerofLot0013at11ppmandDROdetectedonthe

southeastcornerofthesitenearthe

formerUSTsat45ppm.

 VOCsandPCBswerebelowdetectionlimits.

 LeadwasdetectedacrossLot0013atconcentrationsbelow170ppm.



Groundwatersamplesindicated:



 TPHDROandleadwerebelowdetectionlimits.

 VOCsweredetectedon

thesoutheastcornerofthesiteneartheformerUSTsincludingbenzene

andsolvents.



PEPCOGeneratingStation,Square0665 ,Lot0024;Square0661,Lot0804,locatedadjacenttothe

subjectsitetotheeastandsoutheast:TheAEC2005PhaseIidentifiedfourLUSTcasesoneofwhich

remainedopen

(LUSTcase93051).Intheearly1970s,areleasewasreportedfromafour‐inchdiameter

undergroundpipelinethatconnectedtheGeneratingStation(Lot0024)tothetwo,0.411‐milliongallon

#2fueloilASTs(Lot0804)underSStreet.In1993,significantgasolineanddieselcontaminationwas

discoveredinsoil

andgroundwateronthenorthernportionofLot0024.



MonitoringwellsinstalledinbothlotsidentifiedTPHGRO,TPHDRO,andBTEXinsoilandmonitoring

wellsaswellasliquid‐phasehydrocarbons(LPH).Thegroundwater flowdirectionwasdocumentedto

bewestandsouthwest.



InJanuary1996,PEPCOinstalled

aSVEsystemthatoperatedthroughNovember1999thatremoved

approximately6,925gallonsofpetroleum.FromMay2001toApril2002,aportablehighvacuumpump

andtreatsystemwasusedtorecoverLPHfromtwoofthemostcontaminatedwells(MW‐5andMW‐

11),removing1.5gallonsofgroundwater

and1,350gallonsofpetroleum.Thesitehadbeenmonitored

monthlysince1993withsemi‐annualsamplingevents.ResultswerereportedtoDCDepartmentof

Health(nowDCDepartmentoftheEnvironment)inquarterlyreports.



TheAEC2005PhaseIreviewedtheMarch2004groundwatersamplingdata.TPHGRO,TPH

DRO,and

BTEXwereaboveapplicableregulatorystandardsexceptinthreedowngradientwells.Onlypassive

remediationwithabsorbentboomsandmonitoringwasongoing.





9

4. SiteHistory



Pastusageofthesiteand/oradjoiningpropertieswasassessedthroughareviewofSanbornmapsdated

1928,1959,1977,1984,1988,1990,1991,1992,1994,and1998;areviewofaerialphotographsdated

1944,1949,1951,1957,1963,1968,1970,1977,1983,1988,1994,1998,2000,2005,2007,2008,

2009,

2011and2012;andtopographicmapsdated1885,1894,1947,1951,1956,1965,1971,1972,1983and

1994preparedforthesubjectsite(AppendixC).



By1944,smallcommercial/industrialstructureswereidentifiedatthesubjectsite.Startinginthe1950s,

storageoflargeequipmentcouldbeobservedatthe

subjectsite.Thesubjectsitewaslateridentifiedas

ascrapmetalyardownedbyOnec.Thetablebelowprovidesadetailedsummaryofpertinent

informationfromthehistoricalsourcesreviewed:



Dates DescriptionofSubjectSite DescriptionofAdjoining

Properties

Sources

1944‐1956

Smallcommercial/industrial

structureswereidentifiedatthe

subjectsite.

North:Asmallstructureandopen

spacebeyondwhichisa

commercial/industrialstructure

identifiedasadairy.Accordingto

the1959SanbornMap,the

southernportionofthedairy

processedbutter,eggs,poultry

andproduce.By1949,residential

propertiesare

located

immediatelynorthofthesubject

site.



South:twosmallstructures

assumedtoberesidentialwere

observedimmediatelyadjacentto

thesouth.Additionalresidential

structuresarelocatedtothe

southeast.



East:residentialproperties.



West:by1944,residential

structuresareidentified.Grading

activitieshadtakenplacebythe

1950s.

1944,1948



and1951

aerial

photos,

and1959

Sanborn

Map



10

Dates DescriptionofSubjectSite DescriptionofAdjoining

Properties

Sources

1957‐1983

By1957,oneofthestructuresin

theeasternportionofthesubject

siteisnolongerpresent.Apileof

largeequipmentwasobservedin

thecentralportionofthesubject

site.

North:Gradingoftheresidential

propertiesimmediatelynorthof

thesubjectsiteandofthe

southern

partofthe

commercial/industrialstructure

wasobservedbythelate1950s.

By1963,acommercialbuilding

hasbeenconstructedonpartof

thegradedlandthatwasformerly

acommercial/industrialstructure.

Accordingtothe1984Sanborn

Map,thiscommercialpropertyis

ownedbyOnec.



Southandsoutheast:grading

activitieswere

observedonthe

formerresidentialproperties.By

1968,asubstationwasobserved

tothesoutheast.Accordingtothe

1984SanbornMap,thesiteis

ownedbyPEPCOandisatransfer

yard.By1970,asmallstructureis

locatedimmediatelysouthwestof

thesubjectsite.



East:by1957,gradingactivities

wereobserved.By1968,twoASTs

arelocatedimmediatelytothe

eastofthesubjectsite.Theseare

lateridentifiedasfueloiltankson

the1984Sanbornmap.Aparking

lotislocatednorthoftheASTs.



West:asmallstructure,assumed

tobeofcommercialnature,has

been

developedby1957.



1957and

1963aerial

photosand

1984

Sanborn

Map



11

Dates DescriptionofSubjectSite DescriptionofAdjoining

Properties

Sources

1984‐2012

Thesubjectsiteisidentifiedasa

scrapmetalyardownedbyOnec

onthe1984SanbornMap.

North:nochangesinlanduse.



South:theadjacentpropertyis 

identifiedasaparkinglotonthe

1984SanbornMap.Thesmall

structureisownedbyPEPCOand

isidentified

asaprivategarage.

Theremainderofthepropertyis

usedforparking.



East:by2009,asmallstructureis

shownintheeasternportionof

thepropertyimmediatelynorthof

thestoragetanks.



West:accordingtotheSanborn

Maps,theadjacentproperty

comprisesanofficeandparking

facilities.

1984,

1988,

1994,1998,

2000,

2005,2008,

2009,2011

and2012

aerial

photosand

1988,1990,

1991and

1992

Sanborn

Maps

Notes:

1. Unlessotherwisenotedabove,pertheASTMstandard,sourceswererevieweddatingbackto1940orfirstdeveloped

use,whicheverisearlier,andatfive‐yearintervalsiftheuseofthepropertyhaschangedwithinthattimeperiod.



CopiesofhistoricalreferencesreviewedareincludedinAppendixB.





12

5. EnvironmentalRecordsReview



5.1 STANDARDENVIRONMENTALRECORDSREVIEW



Haley&AldrichusedtheelectronicdatabaseserviceEnvironmentalDateResourcestocompletethe

environmentalrecordsreview.Thedatabasesearchwasusedtoidentifypropertiesthatmaybelisted

inthereferencedagencyrecords,locatedwithintheASTM‐specifiedapproximateminimumsearch

distancesasshown

inthetablebelow.Section5.1.1presentsadescriptionofeachdatabasesearched.



Database

Searched

Approximate

MinimumSearch

Distance

SubjectSite

Listed?

NumberofSites

withinSearch

Distance

NPLSites



1mile No 1

DelistedNPLSites



0.5mile No 0

CERCLISSites



0.5mile No 1

CERCLIS‐NFRAPSites



0.5mile No 3

FederalERNS



Siteonly No 0

RCRAnon‐CORRACTSTSDFacilities



0.5mile No 0

RCRACORRACTSTSDFacilities



1mile No 1

RCRAGenerators



Site&Adjoining Yes 1

FederalInstitutionalControls/Engineering

Controls

SiteOnly No 0

StateandTribalEquivalentNPLSites



1mile No 0

StateandTribalEquivalentCERCLISSites



0.5mile No 0

StateandTribalRegisteredStorageTanks



Site&Adjoining No 4

StateandTribalLandfillsandSolidWaste

DisposalSites

0.5mile No 0

StateandTribalLeakingStorageTanks



0.5mile Yes 3

StateandTribalInstitutional

Controls/EngineeringControls

SiteOnly No 0

StateandTribalVoluntaryCleanupSites



0.5mile No 1

StateandTribalBrownfieldSites



0.5mile Yes 13

DCHistoricalUSTs 0.25mile Yes 7



TheEnvironmentalDataResources(EDR)reportalsocontainssearchresultsofotherState

environmentaldatabasesthatarerelevanttothesubjectsite. 



Haley&AldrichalsosearchedtheOrphanSiteListprovidedintheEDRreportforthesubjectsiteand

sitesadjoiningthesubjectsite.Orphansitesarethose

that,duetoincorrectorincompleteaddresses,



13

couldnotbemapped.Neitherthesubjectsitenottheadjoiningpropertieswereidentifiedonthe

OrphanSiteList.Thecompleteenvironmentaldataba sereportisprovidedinAppendixD.



5.1.1 DescriptionsofDatabasesSearched



NumerousregulatorydatabasesweresearchedduringthisPhaseIassessment.Eachdatabasereviewed

isdescribedin

theEDRreportpresentedinAppendixD.ThosedatabasesrequiredbytheASTME1527‐

05Standardareidentifiedbelow.



1. NPL Sites:TheNationalPriorities List (NPL) is a lis t of contaminated sites thatare considered

thehighestpriorityforcleanupbytheU.S.Environmental ProtectionAgency(USEPA).



DelistedNPLSites:TheDelistedNationalPrioritiesList(NPL)isalistofformalNPLsites

formerlyconsideredthehighestpriorityforcleanupbytheUSEPAthatmetthecriteriaofthe

NationalOilandHazardousSubstancesPollutionContingencyPlan(NCP)fordeletionfromthe

NPLbecauseanofurther

responsewasappropriate.



3. CERCLISSites:TheComprehensiveEnvironmentalResponse,Compensation,andLiabilityAct

InformationSystem(CERCLIS)listidentifiessiteswhicharesuspectedtohavecontaminationand

requireadditionalinvestigationtoassesswhethertheyshouldbeconsideredforinclusion on 

theNPL.



4. CERCLIS‐NFRAPSites:CERCLIS‐NFRAPstatusindicates

thatasitewasonceontheCERCLISList

buthasNoFurtherResponseActionsPlanned(NFRAP).SitesontheCERCLIS‐NFRAPListwere

removedfromtheCERCLISListinFebruary1995because,afteraninitialinvestigationwas

performed,nocontaminationwasfound,contaminationwasremovedquickly,orthe

contamination

wasnotsignificantenoughtowarrantNPLstatus.



5. FederalERNS:TheFederalEmergencyResponseNotificationSystem(ERNS)listtracks

informationonreportedreleasesofoilandhazardousmaterials.



6. RCRAnon‐CORRACTSTSDfacilities:TheResourceConservationandRecoveryAct(RCRA)non‐

CORRACTSTSDFacilitiesListtracksfacilitieswhich

treat,store,ordisposeofhazardouswaste

andarenotassociatedwithcorrectiveactionactivity.



7. RCRACORRACTSTSDfacilities:TheRCRACORRACTSTSDFacilitieslistcataloguesfacilitiesthat

treat,store,ordisposeofhazardouswasteandhavebeenassociatedwithcorrectiveaction

activity.



8. RCRAGenerators:TheRCRAGeneratorlist

ismaintainedbytheUSEPAtotrackfacilitiesthat

generatehazardouswaste.



9. FederalInstitutionalControls/EngineeringControls:TheFederalInstitutionalControllistand

EngineeringControllistaremaintainedbytheUSEPA.SomeInstitutionalControland

EngineeringControlinformationmaynotbemadepubliclyavailableandthereforewillnotbe

included

onthisregistry.





14

10. StateandTribalEquivalentNPL/CERCLISSites:The(ASTME1527‐05Standard)requires

searching“StateandTribalEquivalentNPLSites.”AstateequivalenttotheFederal NPLlistis

notmaintainedinDistrictofColumbia.Thesubjectsiteisnotwithintribaljurisdiction.



11. StateandTribalEquivalentCERCLISSites:

The(ASTME1527‐05Standard)requiressearching

“StateandTribalEquivalentCERCLISSites.”AstateequivalenttotheFederalCERCLISlistisnot

maintainedinDistrictofColumbia.Thesubjectsiteis notwithintribaljurisdiction. 



12. StateandTribalRegisteredStorageTanks:TheDistrictofColumbiaDepartmentof

the

Environmentmaintainsalistofabovegroundandundergroundstoragetanks.Thesubjectsiteis

notwithintribaljurisdiction.



13. StateandTribalLandfillsandSolidWasteDisposalSites:TheDistrictofColumbiaSolidWaste

DisposalDivisionisresponsibleforwastedisposalatfacilitieslocatedinVirginia.Thesubjectsite



isnotwithintribaljurisdiction.



14. StateandTribalLeakingStorageTanks:TheDistrictofColumbiaDepartmentofthe

Environmentmaintainsaninventoryofreportedleakingundergroundstoragetankincidents.

Thesubjectsiteisnotwithintribaljurisdiction.



15. StateandTribalVoluntaryCleanupSites:TheDistrictofColumbiaDepartment

ofHealth

maintainsalistofVoluntaryCleanupsites.Thesubjectsiteisnotwithintribaljurisdiction.



16. StateandTribalBrownfieldSites:TheDistrictofColumbiaDepartmentoftheEnvironment

maintainsalistofBrownfieldsiteswhichincludespropertieswhereredevelopmentorre‐use

maybecompromisedbythe

presenceorpresumedpresenceofhazardousmaterialsor

petroleum.Thesubjectsiteisnotwithintribaljurisdiction.



17. OtherDatabasesSearched(HistoricalCleanersandAutoStations):EDRProprietaryRecords

includeHistoricalCleaners,adatabasethatconsistsofpotentialdrycleanersites;andHistorical

AutoStations,availablelistingsofpotentialgasstation/filling

station/servicestationsites.



5.1.2 DetailedDescriptionofRelevantSubjectSiteListings



TheEDRreportidentifiedthefollowingdatabaselistingsinsearcheddatabases(including more

databasesthanlistedabove)atthesubjectsite.



SuperSalvage,Inc.locatedat17111

Street,SW(Square0605,Lots0802,MapID#C9,C10andC11)is

listedontheLUST(case#96030),USTandRCRA‐CESQCdatabases.Atankcontaininggasolinewas

reportedtobeleakinginOctober1995andreportedlyimpactedsoil.Thestatusofthisreleaseislisted

asClosed.A2,000‐gallongasolinelocatedatthesiteislistedasPermanentlyOutof

Use.Additionally,

thisentityislistedasaConditionallyExemptSmallQuantityGeneratorforstoringignitablehazardous

wastes,aswellaswastecadmium,lead,benzene,methylethylketone,tetrachloroethylene,and

trichloroethylene.Noviolationshavebeenreportedassociatedwiththislisting.Basedonitsstatusand

impactsbeinglimitedtosoil,

impactsfromtheLUSTdonotpresentathreattohumanhealthorthe

environmentundercurrentsiteconditionsanditisunlikelythattheLUSTwillrequireadditional

regulatoryaction.





15

5.1.3 DetailedDescriptionsofRelevantNearbySiteListings



TheEDRreportidentifieddatabaselistingsinsearcheddatabases(includingmoredatabasesthanlisted

above)withintheprescribedsearchradii.ThemajorityofthedatabaselistingswereUSTsandLUST

sites.Basedontheurbanareaofthesite,characterizedbysubsurface

buildinglevels,subwaytunnels,

andutilitiesthatcreatebarrierstogroundwaterflow ,andbasedontheassumptionthatthe

groundwaterunderthesubject siteistidallyinfluenced,onlythosesitesintheimmediatevicinityofthe

subjectsitewouldbeanticipatedtohav ethepotentialtoaffectthesubjectsite.These

sitesarelisted

below.



100SStreet,SW(MapID#1),locatedi mmediatelysouthofthesubjectsiteislistedontheBrownfields

database.



PEPCOBuzzard–Tank#1locatedat180SStreet,SW(MapID#A2),locate d immediatelysouthofthe

subjectsiteislistedontheLUST(casenumber93094)andBrownfieldsdatabases.Thesiteownedand

operatedagasolineordieselUST.AreleasefromtheUSTwasreportedinAugust1993andreportedly

impactedsoil.Thestatusofthereleaseislistedasclosed.Basedonitsstatus,impacts

fromtheLUSTdo

notpresentathreattohumanhealthortheenvironmentundercurrentconditionsanditisunlikelythat

theLUSTwillrequireadditionalregulatoryaction.BuzzardPointFacility, alsolocatedat180SStreet,SW

(Square0607,Lots0013,MapID#I36)islistedontheUSTdatabase.Threetanksstoringgasolineare

listedasPermanentlyOutofUse.



Attislocatedat17142

Street,SW(MapID#A3)islistedontheUSTdatabase.The3,500‐gallontank

containedgasoline.TheentryislistedasPermanentlyOutofUse.AT&Tisalsolocatedat17142



Street,SW(Square0605,Lots0007,MapID#A4)andislistedontheLUST(case#92076)and

Brownfielddatabases.Thesiteownedandoperateda3,500gallongasolineUST.AreleasefromtheUST

wasreportedinJuly1992andimpactedsoilandgroundwater.Thestatusofthereleaseislisted as

closed.Basedonitsstatus,impactsfro mtheLUSTdonotpresentathreattohuman

healthorthe

environmentundercurrentconditionsanditisunlikelythattheLUSTwillrequireadditionalregulatory

action.



PEPCO,locatedat1

andTStreet,SW(MapID#7),locatedadjacenttotheeastofthesubjectsiteis

listedontheUSTdatabase.Twoentriesareincludedinthisdatabasefortanksofcapacity6,000gallons

andcontainingdiesel.TheseentriesarelistedasPermanentlyOutofUse.



Anentrylocatedat17001

Street,SW(MapID#C10),locatedimmediatelyeastofthesubjectsiteis

listedontheBrownfielddatabase.Noadditionaldetailsareprovided.



5.2 ADDITIONALENVIRONMENTALRECORDSREVIEW



Tosupplementthe(ASTME1527‐05Standard)environmentalrecordsources,wecontactedthe

followingstateandlocalgovernmentagencies,and/orreviewedthefollowingadditionalso urces: 



5.2.1 D.C.DepartmentoftheEnvironment



Additionalenvironmentalrecords

wererequestedforthisassessmentthroughaFreedomof

InformationAct(FOIA)re questtotheD.C.DepartmentoftheEnvironment(DCDE).Todate,noresponse

hasbeenreceivedfromtheFOIArequest.Duetotheinformationobtainedthroughinterviewswithkey

subjectsitepersonnel,andotherrecordsreviews,itdoesnot

appearthatresponsestotheFOIA



16

requestsshouldaffectourconclusionsregardingthesite.However,ifaresponseisreceivedthataffects

ourconclusionsregardingthesubjectsite,wewillprovideanaddendumtothisreport.



5.2.2 D.C.FireandEMSDepartment



AdditionalenvironmentalrecordswererequestedforthisassessmentthroughaFOIArequesttothe

DC

FireandEMSDepartment.Thisdepartmentrespondedtoourrequeston27December2013.According

tothefilesheldbythisdepartment,operationstakingplaceatthesubjectsiteandadjoiningproperties

areunlikelytobeimpactingthesubjectsite.AcopyoftheresponsefromtheDCFireand

EMS

DepartmentisincludedinAppendixD.



5.3 USERRESPONSIBILITIES



TheAAIRulerequiresthattheuserofthereportconsiderthefollowing:



 Whethertheuserhasspecializedknowledgeaboutpreviousownershiporusesofthesubject

sitethatmaybematerialtoidentifyingRECs;



 Whetherthe

userhasdeterminedthatthesubjectsite’sTitlecontainsenvironmental liensor

otherinformationrelatedtotheenvironmentalconditionoftheproperty,includingengineering

andinstitutionalcontrolsandActivityandUseLimitations(AULs),asdefinedbyASTM;



 Whethertheuserisawareofcommonlyknownorreasonablyascertainableinformation

about

thesubjectsiteincludingwhetherornotthepresenceofcontaminationislikelyonthesubject

siteandtowhatdegreeitcanbedetected;and



 Whethertheuserhaspriorknowledgethatthepriceofthesubjectsitehasbeenreducedfor

environmentallyrelatedreasons.



Werequested

suchinformationforinclusioninthisreport.ThoughneithertheAAIRulenortheASTME

1527‐05Standardrequiresthatthisinformationbeprovidedtotheenvironmentalprofessional(s),

failureonthepartoftheusertoobtainsuchinformationfortheirownrecords,shoulditbereasonably

ascertainable,may

invalidatetheuser’scompliancewiththeAAIRuleforCERCLAliabilityprotectionin

thefuture.





17

6. SiteReconnaissanceandKeyPersonnelInterview(s)



AsitevisittoobservesiteconditionswasconductedbyKarinHollandandChristian‐NoelTschibeluof

Haley&Aldrichon28August2013.AccesstothesubjectsitewasprovidedbySteveMiddletonofSuper

Salvage.AninterviewwithJohnKellerofSuperSalvagewasperformedinconjunctionwith

thesitevisit.

Haley&Aldrichpersonnelobservedaccessibleinteriorareasofthesubjectsitebuilding(s),including

commonareas,basementareas,mechanicalspaces,andtenantspaces.Haley&Aldrichalsoobserved

theexteriorportionsofthesubjectsite,includingthepropertyboundaries,andobservedadjoining

propertyconditionsfromthesubject

siteboundariesand/orpublicthoroughfares.Noweather‐related

conditionsorotherconditionsthatwouldlimitourabilitytoobservethesubjectsiteoradjoining

propertiesoccurredduringoursubjectsitevisit.SitephotographsareprovidedinAppendixE.The

findingsofthesubjectsitevisitandinterviewsarediscussedbelow.



ASTME1527‐05StandardSection10.8requiresthat,priortothesubjectsitevisit,thecurrentsubject

siteownerorkeysitemanageranduser,ifdifferentfromthecurrentownerorkeysitemanager,be

askedifthereareanyhelpfuldocumentsthatcanbemadeavailablefor

review.Theseconsistof

environmentalsiteassessmentreports,audits,permits,tankregistrations,MaterialSafetyDataSheets,

CommunityRight‐to‐Knowplans,safetyplans, hydrog eologicorgeotechnicalreports,orhazardous

wastegeneratorreports.Wemadesucharequestbutwerenotprovidedwithanydocuments.



6.1 SUBJECTSITEOBSERVATIONS



6.1.1 Current

UseofthePropertyandGeneralDescriptionofStructures



Thesubjectsiteoperatesasalvageyardfordiversemetalstructures,includingductworks,ironsheets,

castirongrids,radiators,rebar,andbeams.SuperSalvage,Inc.hasbeenoperatingatthispropertysince

the1950s.Anofficebuildingandaworkshopof

brickconstructionarelocatedinthesouthernportionof

thislot.Twoadditionalsmallbuildings,onehousingametalshearandthesecondadjacenttoa

weighingstationwereobserved.Athree‐walledstructureisloca tedinthesouthwesterncornerofthis

propertyandcontainsapaintstripper.Asmall

metaltrailerislocatedinthenorthernportionofthelot.

Thelotispavedwithconcrete.



6.1.2 PotableWaterSupplyandSewageDisposalSystemorSepticSystems



Thesubjectsitehasapotablewatersupplyandasewagedisposalsystem.Potablewaterandsanitary

sewerserviceisprovidedbythe

DistrictofColumbiaWaterandSewerAuthority(WASA).



6.1.3 UseandStorageofPetroleumProductsandHazardousMaterials



Petroleumproductsand/orhazardousmaterials wereobservedtobeused,stored,and/ordisposedof

atthesubjectsiteasdescribedbelow.Thefollowingbulkstoragetankswereobservedorreported

associatedwith

thesubjectsiteduringthesitevisit: 



18



Tank

#

AST/

UST

Contents/

Capacity

Location

 Use

Closure

Status

Observations/

Evidenceofrelease

1 AST

Hydraulic

oil,300

gallons

Eastern

portionof

subject

site

Maintenance

ofheavy

machinery



Inuse

Tanks1through3

arelocatedwithin

thesamesecondary

containment.A

thicklayerofoilwas

observedatthe

bottomofthis

containment.The

integrityofthe

secondary

containmentis

thereforeunknown.

2 AST

Motoroil,

500gallons

Eastern

portionof

subject

site

Operationof

heavy

machinery



Inuse

3 AST

Filtersand

oil,

unknown

capacity

Eastern

portionof

subject

site

Maintenance

ofheavy

machinery



Inuse

4 AST

Diesel,500

gallons

Centerof

subject

site

Operationof

threecranes



Inuse

TheASTislocated

withinsecondary

containment.

5 AST

Diesel,500

gallons

Northern

portionof

subject

site

Operationof

heavy

machinery



Inuse

TheASTisnot

surroundedby

secondary

containment.

Stainingwas

observedon

concreteinthe

vicinityoftheAST.A

largequantityof

wastehadbeen

dumped

immediately

adjacenttotheAST

preventingHaley

&

Aldrich

representativesto

confirmthe

conditionofthe

concretebeneath

thiswaste.

6

LUST

(case#

96030)

Gasoline,

20,000

gallons

Unknown Unknown

Outof

use,

listedas

Closed





19

Otherpetroleum/hazardousmaterialsobservedatthesubjectsiteincluded:



Petroleum

Productor

Hazardous

Substances

Quantity

Stored&

Container

Storage

Location

Use

Observations/Evidenceof

release

Antifreeze

55gallon

drum

Eastern

portionof

subjectsite

Maintenance

ofheavy

machinery

Thesedrumsarestorednext

totheASTwithinsecondary

containment.

Oil

55gallon

drum

Eastern

portionof

subjectsite

Maintenance

ofheavy

machinery

Filters

Four55

gallondrums

Eastern

portionof

subjectsite,

southof

ASTs

Usedfilters

from

equipment

awaitingoff‐

sitedisposal

Thedrumsappearedtobein

goodcondition.Noevidence

ofrelease.

Oil

55gallon

drum

Eastern

portionof

subjectsite

Maintenance

ofheavy

machinery

Thedrumappearedtobein

goodcondition.Noevidence

ofrelease.

Propane

Cylindersof

various

capacities

Southern

and

southeaster

nportionof

subjectsite

Torching

Cylindersarereportedly

chainedwhennotinuse.

Liquid

oxygen

Cylinders

Southern

portionof

subjectsite

Torching

Cylindersarereportedly

chainedwhennotinuse.



6.1.4 DisposalofPetroleumProductsandHazardousMaterials



AwastecontractorpaysSuperSalvage,Inc.,fortheirusedoils,whicharerecycledoff‐site.



6.1.5 Odors



Noodorsweredetectedwiththeexceptionofanunpleasant,hydrocarbon‐likeodorinthenorthern

portionofthesubjectsite.



6.1.6 PCBs

AssociatedwithElectricalorHydraulicEquipment



Duetothenatureofactivities,PCB‐containingmaterialsareunlikelytobepresentatthesubjectsite.



6.1.7 UnidentifiedSubstanceContainers



Unidentifiedsubstancecontainerswerenotidentifiedatthesubjectsite.



6.1.8 HeatingandCoolingSystem



Thesubjectsitehasanaturalgas

‐firedheatingsystemandanelectriccoolingsystem.



20



6.1.9 StainsorCorrosiononFloors,Walls,orCeilings 



Stainingwasobservedonconcretepavinginthebuildinghousingtheshearinthecenterofthesubject

siteandinthebuildinginthecentralportionofthelot.



6.1.10 FloorDrainsandSumps



Floordrainswerenotobserved

inaccessiblebuildingsatthesubjectsite.



Stormwaterandspillsarepumpedtoasumpinthesouthwesternportionofthesubjectsitebefore

beingdisposedoff‐sitebyalicensedcontractor.Thepumpislocatedatthecenterofthesubjectsite

andliquidsaretransportedviaanaboveground

pipetothesump.Thesumpcontainedlargequantities

ofoilyliquidduringthesitevisitanditwasnotpossibletoascertainwhetherthesumpwaslinedand/or

confirmtheintegrityofthelining.Thesiterepresentativecouldnotconfirmthestatusofthesump

lining.



6.1.11 HydraulicElevators



Nohydraulicelevatorswereobservedorreportedatthesubjectsite.



6.1.12 VehicleMaintenanceLifts



Nohydraulicvehiclemaintenanceliftswereobservedorreportedatthesubjectsite.



6.1.13 EmergencyGeneratorsandSprinklerSystemPumps



Noemergencygeneratorsandsprinklersystempumpswereobservedorreportedatthesubject

site.



6.1.14 CatchBasins



Nocatchbasinswereobservedorreportedatthesubjectsite.



6.1.15 DryWells



Drywellswerenotobservedorreportedatthesubjectsite.



6.1.16 Pits,Ponds,Lagoons,andPoolsofLiquid



Pits,Ponds,Lagoons,andPoolsofLiquidwerenotobservedorreported

atthesubjectsite.



6.1.17 StainedSoilorPavement



Multiplestainswereobservedonconcretepavingthroughouttheexternalareasofthesubjectsite.



6.1.18 StressedVegetation



Evidenceofstressedvegetationwasnotobservedatthesubjectsite.





21

6.1.19 SolidWasteandEvidenceofWasteFilling



Accordingtothesiterepresentative,thesubjectsitedoesnotpayawastedisposalcompanytocollect

theirsolidwaste.



6.1.20 WastewaterandStormwaterDischarge



SuperSalvage,Inc.,pumpsallstormwateronthesubjectsitetoadesignatedsump. Wastewateris

periodically

removedanddisposedoff‐sitebyalicensedwastecontractor. 



6.1.21 Monitoring,WaterSupply,orIrrigationWells



Monitoring,watersupply,andirrigationwellswerenotobservedorreportedatthesubjectsite.



6.1.22 SanitarySewerandSepticSystems



Septicsystemswerenotobservedorreportedatthesubjectsite.



6.2 ADJOININGPROPERTYOBSERVATIONS



Propertiesadjoiningthesubjectsiteweregenerallyobservedtobelightindustrialorcommercialin

nature.





22

7. SubsurfaceExploration



Inordertoevaluatesubsurfaceconditionsatthesubjectsiteandassesswhethercurrentandformer

operationatandadjacenttothesubjec tsiteareimpactingthesubjectsite,Haley&Aldrichconducted

PhaseIIsubsurfacesamplingatthesubjectsite.Theapproximatelocationsofexplorationsareshownon

Figure

3.



7.1 DIRECTPUSHSAMPLINGANDMONITORINGINSTALLATIONS9THROUGH27APRIL2015



Soilandgroundwaterinvestigationacti vitieswereconductedattheSiteinordertoevaluatesubsurface

conditionsandassesswhethercurrentand/orformeroperationsatandadjacenttotheSitehave

impactedsoilandgroundwaterquality.Theseinvestigation

activitieswereconductedattheSite

between9and27April2015attheidentifiedREClocations.



DirectpushreportsandobservationwellinstallationreportsareincludedinAppendixF.



7.1.1 SoilSampling



Soilsampleswerecollectedduringadvancementofdirect‐pushborings(GSS‐605‐802‐10,GSS‐605‐802

‐

11,andGSS‐605‐802‐12)andinstallationofthetemporarygroundwatermonitoringwells(GTW‐605‐

802‐1,GTW‐605‐802‐2,GTW‐605‐802‐6,GTW‐605‐802‐7,GTW‐605‐802‐9).Boringswereadvanced 

usingatrack‐mounteddirect‐pushdrillrigtodepthsrangingfrom10

to30feetbgs.Eachboringwas

continuouslyloggedinaccordancewiththeUnifiedSoilClassificationSystem.Continuoussoilcores

werecollectedwithhydraulic‐percussivedrivingofastainlesssteelsamplingprobeequippedwith

dedicatedacetatetubeli ners.Soil coreswereobservedanddocumentedvisuallyfordiscolorationand

screenedforthe

presenceofVOCsusingaphotoionizationdetector(PID).Thesoilsamplewascollected

fromthedepthintervalexhibitingthehighestPIDreading.Sampl eswereplacedinacoolerwithiceand

submittedforanalysistoPaceAnalyticalServices,Inc.,(Pace)understandardchainofcustody

procedures.Soilsampleswereanalyzed

foroneormoreofthefollowing:TPH,PAHs,VOCs,PCBsand

metals.



7.1.2 GroundwaterSampling



Groundwatersampleswerecollectedfromtemporarygroundwatermonitoringwells(GTW‐605‐802‐1,

GTW‐605‐802‐2,GTW‐605‐802‐6,GTW‐605‐802‐7,GTW‐605‐802‐9)installedaftercompl etionofdirect‐

pushboringsto30feetbgs.Temporarypolyethylenechloridecasingwasinstalledwith5feetofscreen

fromapproximately23to30feetbgs.Sampleswerecollectedusinglow‐flowsamplingtechniques.

Fieldparametersweremeasuredduringpurgingusinganin‐lineflowcell.Groundwatersampleswere

collectedafterfieldparameters

stabilizedinaccordancewithstandardoperatingprocedures.Samples

werecollecteddirectlyfromdedicatedplastictubinginstalledineachwellintolaboratory‐provided

containersinamannertoavoidsampleagitationandconstituentvolatilization.Sampleswereplacedin

acoolerwithiceandsubmittedforanalysistoPaceunderstandardchain

ofcustodyprocedures.

Groundwatersampleswereanalyzedforoneormoreofthefollowing:TPH,VOCs,semi‐volatileorganic

compounds(SVOCs),andmetalsatthePacelaboratoryinCharlotte,NorthCarolina.



GroundwatersamplingrecordsareincludedinAppendixG.





23

7.2 SUBSURFACEFINDINGS



Subsurfaceinvestigationsdescribedinthisreportwerenotintendedtodefinethelateralextentof

petroleumimpactstosoilorgroundwateratthesubjectsite.TheobjectivewastoexploreKRECsand

SRECstoevaluatecurrentconditionstoassessthegeneralmagnitudeofpotentialimpacts.



7.2.1 Soil

Results



SoilanalyticalresultsaresummarizedinTableI,alongwithregulatoryscreeninglevelsforcomparison.

LaboratoryanalyticalreportsareincludedinAppendixH.



Soilsampleanalyticalresultswerecomparedtothefollowingscreeninglevels:



 DCTier0SoilStandardsfromtheTier0StandardsFinalRulemakingpublishedat

40DCR7835,

7892(12November1993),asamendedbyFinalRulemakingpublishedat46DCR7699(1

October1999);and

 EnvironmentalProtectionAgency(EPA)Reg ionalS creeningLevelforIndustrialSoilfromtheEPA

RegionalScreeningLevelTables(May2014).



ForthepurposeofthisReport,“soilscreeninglevels”

aretheloweroftheabovescreeninglevels.Soil

samplecollectiondepthsrangedfrom0to15feetbgs.ThefollowingsummarizestheresultsbyREC.



 Unlined/unpavedsump(samplelocationsDP‐001andDP‐002):Arsenic,lead,benzo(a)pyrene,

anddieselrangeTPH‐DROweredetectedatconcentrationsabovesoil

screeninglevels.

 Heavystainingofconcrete(GSS‐605‐802‐11):Arsenicwasdetectedataconcentration abovethe

soilscreeninglevel.Additionally,thehighestPIDreadingwasrecordedatadepthof10to15

feetbgs,thereforethesoilsamplewascollectedfromthisinterv al.

 Oillayerin

secondarycontainmentunderAST(samplelocationsGTW‐605‐802‐1,GTW‐605‐802‐

2,andGSS‐605‐802‐12):ArsenicandTPH‐DROweredetectedatconcentrationsabovesoil

screeninglevels.

 ConcretestainingnexttonorthernAST(samplelocationsGTW‐605‐802‐9andGSS‐605‐802‐10):

Arsenic,

lead,PCBs,ethylbenzene,andTPH‐DROweredetectedatconcentrationsabovesoil

screeninglevels.

 Impactstotheadjacentproperty(samplelocationsGTW‐605‐802‐6andGTW‐605‐802‐7):

ArsenicandTPH‐DROweredetectedatconcentrationsabovesoilscreeninglevels.



Thereportedconcentrationsofarsenicandlead

insoilabovethesoilscreeninglevelsmaybewithin

naturallyoccurringbackgroundattheSite,andifso,wouldnotwarrantremediation.



7.2.2 GroundwaterResults



GroundwateranalyticalresultsaresummarizedinTableII,alongwithregulatoryscreeninglevelsfor

comparison.LaboratoryanalyticalreportsareincludedasAppendixH.



Groundwater

sampleanalyticalresultswerecomparedtothefollowingscreeninglevels:



 DCTier1Risk‐basedgroundwaterscreeninglevelsforindoorandoutdoorinhalationofthe

residentchild(buildingoccupant)fromtheRisk‐BasedCorrectiveActionTechnicalGuidance,

Table5‐8(June2011);



24

 DCTier1Risk‐basedgroundwaterscreeninglevelsfordermalcontactoftheconstruction

workerfromtheRisk‐BasedCorrectiveActionTechnicalGuidance,Table5‐8(June2011)and

 EPAregionalmaximumcontaminantlevelsfromtheEPARegionalScreeningLevel(RSL)

SummaryTable(January2015).



For the purpose of

 this Report, “groundwater screening levels” are the lower of the above screening

levels.ThefollowingsummarizestheresultsbyREC.



 Unlined/unpavedsump(soilsamplelocationsDP‐001andDP‐002):Groundwat er samples were

notcollected.

 Heavystainingofconcrete(soilsamplelocationGSS‐605‐802‐11):Groundwatersamples

were

notcollected.

 OillayerinsecondarycontainmentunderAST(samplelocationsGTW‐605‐802‐1andGTW‐605‐

802‐2):Arsenicwasdetectedatconcentrationsabovegroundwaterscreeninglev els.Reported

detectionlimitsforthalliumandselectSVOCs(benzo[a]pyrene,andpentachlorophenol)were

elevatedabovegroundwaterscreeninglevels.

 Concrete

stainingnexttonorthernAST(samplelocationGTW‐605‐802‐9):Antimony,arsenic,

lead,andmethylenechlorideweredetectedatconcentrationsabovegroundwaterscreening

levels.Reporteddetectionlimits forthallium,selectVOCs(1,2‐dibromo‐3‐chloropropane,1,2‐

dibromoethaneandvinylchloride),andselectSVOCs(benzo[a]pyrene,hexachlorobenzene,and

pentachlorophenol)wereelevatedabove

groundwaterscreeninglevels.

 Impactstotheadjacentproperty(samplelocationsGTW‐605‐802‐6andGTW‐605‐802‐7):Lead

andmethylenechlorideweredetectedatconcentrationsabovethegroundwaterscreening

level.Reporteddetectionlimitsforthallium,selectVOCs(1,2‐dibromo‐3‐chloropropane,1,2‐

dibromoethaneandvinylchloride),and

selectSVOCs(benzo[a]pyrene,andpe ntachlorophenol)

wereelevatedabovegroundwaterscreeninglevels.





25

8. FindingsandConclusions



Haley&Aldrich,Inc.(Haley&Aldrich)performedaPhaseIenvironmentalsiteassessment(PhaseI

assessment)oftheSuperSalvageInc.property(hereinreferredtoasthe“subjectsite”)inWashington,

DC.Thescopeofworkisdescribedandconditionedbyourproposaldated28June2013.Asindicated

in

ourproposal,thisPhaseIassessmentwasperformedinconformancewiththescopeandlimitationsof

theAmericanSocietyforTestingandMaterials(ASTM)E1527‐05StandardPracticeforEnvironmental

SiteAssessments:PhaseIEnvironmentalSiteAssessmentProcess(ASTME1527‐05Standard)as

referencedin40Code

ofFederalRegulations(CFR)Part312[theAllAppropriateInquiries(AAI)Rule].

DeviationsfromthisStandard,and/ordatagapsandtheirsignificancearedescribedinSection1.5of

thisreport.PhaseIIsubsurfacesamplingwasalsoconductedtoevaluateissuesidentifiedduringthe

PhaseIportionoftheassessment.Ourconclusions

areintendedtohelptheuserevaluatethe“business

environmentalrisk”associatedwiththesubjectsite,asdefinedintheASTME1527‐05Standardand

discussedinSection1.1ofthisreport.



ThesubjectsiteisboundedbyapropertyownedbytheDistrictofColumbiatothenorth,

SStreet,SW

tothesouth,1

Street,SWtotheeastandapropertyownedbyRollingwoodRealEstatetothewest,

andiscurrentlyoccupiedbyasalvageyardfordiversemetalstructures.



TheobjectiveofaPhaseIassessmentistoidentifyknownandsuspect“recognizedenvironmental

conditions”(RECs),historicalRECs(HRECs),andde

minimisconditionsassociatedwiththesubjectsite,

asdefinedintheASTME1527‐05StandardandinSection1.1ofthisreport.TheobjectiveofthePhaseII

subsurfacesamplingistoprovideapreliminaryevaluationofRECsidentifiedduringthePhaseIportion

oftheassessment,includingorderof

magnitudecostandscheduleimpactsontheproposed

development.



TheASTME1527‐05Standardrequiresanenvironmentalprofessional’sopinionofthepotentialimpacts

ofRECs,HRECs,anddeminimisconditionsidentifiedonasiteduringaPhaseIassessment.Ouropinion

isrenderedwithrespecttoaREC’spotential

(high,medium,orlow)torequireremedialresponsebased

onprevailingagencyrequirementsandourunderstandingthatthesubjectsiteisoneofsevenparcels

beingevaluatedforpotentialredevelopmentasaprofessionalsoccerstadium.Ouropinionregardinga

REC'spotentialimpactonthesubjectsite(high,medium,low,or

unknown)isbasedonthescopeofour

work,theinformationobtainedduringthecourseofourwork,theconditionsprevailingatthetimeour

workwasperformed,theapplicableregulatoryrequirementsineffectatthetimeourworkwas

performed,and/orourexperienceevaluatingsimilarsites,andourunderstanding of

theclient's

intendeduseforthesubjectsite.



Soilandgroundwatersampleswerecollectedfortheevaluationofthepresenceofchemicalsofconcern

atthepotentialRECsassociatedwiththesubjectsiteasdescribedbelow.Foursamplelocationswere

inaccessible,duetoasignificantamountofconcreteorsignificant

pilesofscrapmetalbeingstoredat

theselocations.Inaddition,heavyconcretestainingwasobservedatmanylocationsatthesubjectsite.

Incertainareas,thestainingwastoothicktoconfirmtheintegrityoftheconcrete.Theseconstitutea

datagapinthisreport.



RECOGNIZEDENVIRONMENTALCONDITIONS



The

ASTME1527‐05StandarddefinesaRECas“thepresenceorlikelypresenceofanyhazardous

substancesorpetroleumproductsonapropertyunderconditionsthatindi cateanexistingrelease,a



26

pastrelease,oramaterialthreatofareleaseofanyhazardoussubstancesorpetroleumproductsinto

structuresonthepropertyorintotheground,groundwater,orsurfacewateroftheproperty.”A

materialthreatisdefinedbytheASTME1527‐05Standardas“aphysicallyobservableorobvious

threat

whichisreasonablylikelytoleadtoareleasethat,intheopinionoftheenviro nmentalprofessional,is

threateningandmightresultinimpacttopublichealthortheenvironment.”



ThisPhaseIassessmenthasrevealedfiveKRECs,fourSRECsandfourHRECs.Detailsregardingthe

natureofthese

RECsandouropinionregardingpotentialimpactsareprovidedbelow.



KNOWNORSUSPECTRECOGNIZEDENVIRONMENTALCONDITIONS



ConsistentwithASTME1527‐05Section12.5(ReportFormat),andforthepurposesofthisassessment,

thoseRECsthathavebeenidentifiedasbeingpresentwithrespecttothesubjectsitearereferredto

as

KnownRecognizedEnvironmentalConditions(KRECs),andthoseRECsthathavebeenidentifiedasbeing

likelypresentwithrespecttothesubje ctsitearereferredtoasSuspectRecognizedEnvironmental

Conditions(SRECs).



KnownRecognizedEnvironmentalConditions



FiveKRECshavebeenidentifiedatthesubjectsitebasedonthePhaseII

subsurfacesamplingresultsat

thesubjectsiteandadjoiningproperties.



KREC#1: Potentiallyunlined/unpavedsumpatthesubjectsite

PotentialImpact: High

Explanation: On‐sitestormwaterandspillsarecapturedandpumpedtoasumpinthe

southwesternportionofthesubjectsitebeforebeingdisposedoff‐siteby

a

licensedcontractor.Thesumpcontainedlargequantitiesofoilyliquidduring

thesubjectsitevisitanditwasnotpossibletoascertainwhetherthesumpwas

linedand/orconfirmtheintegrityofthelining.Thesiterepresentativecouldnot

confirmthestatusofthesumplining.Haley&Aldrich

collectedtwosoilsamples

inthevicinityofthesumpinApril2015.Arsenic,lead,benzo(a)pyrene,and

dieselrangetotalpetroleumhydrocarbons(TPH‐DRO)weredetectedat

concentrationsaboveapplicablesoilscreeninglevels,asillustratedinTableI.



KREC#2: Heavystainingofconcreteatthesubjectsite

PotentialImpact:

 High

Explanation: Heavyconcretestainingwasobservedatmanylocationsatthesubjectsite.The

concretewasinmoderatetogoodconditionwherevisible.Inotherareas,for

exampletheareasurroundingthesumppump,thestainingwastoothickto

confirmtheintegrityoftheconcrete.Haley&Aldrich

collectedonesoilsample

inthevicinityofheavystaininginApril2015.Arsenicwasdetectedata

concentrationabovetheapplicablesoilscreeninglevel,asillustratedinTableI.

Groundwatercouldnotbecollectedinthislocation.



KREC#3: Oillayerinsecondarycontainmentunderabovegroundstoragetanks(ASTs)

at

thesubjectsite

PotentialImpact: High

Explanation: AthicklayerofoilwasobservedatthebottomoftheASTtanksintheeastern

portionofthesubjectsite.Itisunderstoodthatthebottomofthecontainment



27

ispavedwithconcrete.However,theintegrityoftheconcretecouldnotbe

confirmed.Haley&Aldrichcollectedthreesoilandtwogroundwatersamplesin

thevicinityofheavystaininginApril2015.ArsenicandTPH‐DROweredetected

atconcentrationsaboveapplicablesoilscreeninglevels,asillustratedinTableI.



Inaddition,arsenicwasalsodetectedatconcentrationsaboveapplicable

groundwaterscreeninglevels.



KREC#4: ConcretestaininginareaofanASTatthesubjectsite

PotentialImpact: High

Explanation: ConcretestainingonpavingnexttoanASTwasobservedinthenorthern

portionofthesubjectsite.The

concretepavingwasinrelativelygoodcondition

duringthesubjectsitevisit.Howeveralargequantityofwastehad been

dumpedimmediatelyadjacenttotheASTpreventingtheHaley&Aldrich

representativefromconfirmingtheconditionoftheconcretebeneaththis

waste.Haley&Aldrichcollectedtwosoilandone

groundwatersamplesinthe

vicinityofheavystaininginApril2015.Arsenic,lead,polychlorinatedbiphenyls

(PCBs),ethylbenzene,andTPH‐DROweredetectedatconcentrationsabovesoil

screeninglevels,asshowninTableI.Inaddition,antimony,arsenic,lead,and

methylenechlorideweredetectedatconcentrationsabovegroundwater

screeninglevels.



KREC#5:

 Impactsinnorthernportionofsubjectsite/tothepropertyadjacenttonorthof

thesubjectsite

PotentialImpact: High

Explanation: Haley&Aldrichcollectedtwosoilandtwogroundwatersamples(GTW‐605‐802‐

6andGTW‐605‐802‐7)alongtheboundaryofthesubjectsiteandtheproperty

adjacenttothenorth.ArsenicandTPH‐DROweredetectedatconcentrations

abovesoilscreeninglevels,asshowninTableI.Inaddition,leadandmethylene

chlorideweredetectedatconcentrationsabovethegroundwaterscreening

level,asindicatedinTableII.



SuspectRecognizedEnvironmental Conditions 



ThefollowingSRECwasobserved

ontheadjacentpropertywestofthesubjectsiteduringsitevisitsby

Haley&AldrichforthecomprehensivePhaseIassessmentofBuzzardPointinAugustand2013and

fromalimitedPhaseIIsubsurfaceinvestigationperformedbyHaley&AldrichinSeptember2014.



SREC#1: Soilandgroundwater

petroleumimpactsthatmayhavemigratedfromsubject

site

PotentialImpact: High

Explanation: AsoilsampleobtainedfromtestboringcollectedbyHaley&Aldrichfrom

beneaththeeasternportionofthepropertyimmediatelyadjacenttothewest

inSeptember2014revealedapolycyclicaromatichyd rocarbon(PAH),

benzo(a)pyrene,andarsenic

aboveapplicablesoilscreeninglevels.Inaddition,

free‐phaseoilwasobservedingroundwateratthislocationfromadepthof7.6

feetbgsto20.9feetbgs.TPH‐DROalsoexceededapplicablegroundwater

concentrationsatthislocation.AdditionalsoilsamplingbyHaley&Aldrichin

April2015atthisadjacent

propertyrevealedthepresenceofarsenicandTPH‐

DROinsoilatconcentrationsaboveassociatedsoilscreeninglevels.



28

Furthermore,leadandmethylenechlorideweredetectedatconcentrations

aboveapplicablegroundwaterscreeninglevel.Theimpactsmightbeassociated

withthepotentiallyunlined/unpavedsumpdescribedabove(KREC#1).



ThefollowingSRECswereobservedontheadjacentpropertysouthandsoutheastofthesubjectsite

duringsitevisitsbyHaley&Aldrich

forthecomprehensivePhaseIassessmentofBuzzardPointin

AugustandDecember2013andfromaPhaseIIsubsurfaceinvestigationperformedbyHaley&Aldrich

inDecember2013.



SREC#2: Shallowsubsurfacepetroleumimpactfromsurfacestainingorurbanfillat

Square0607,Lot0013

PotentialImpact: Low

Explanation: Apparenthydrocarbonstainswereobserved

duringasitevisiton28August2013

onanasphalt‐pavedportionofthepropertyatSquare0607,Lot0013thatis

currentlyusedasaparkinglot.Acrackwasobservedintheasphaltunderoneof

thesestainsandasoilsamplecollectedbyHaley&Aldrichfrombeneaththe

asphaltrevealedtotalpetr oleum hydrocarbons–dieselrangeorganics(TPH‐

DRO)concentrationof184milligramsperkilogram(mg/kg).ThisTPH‐DRO

detectionconfirmsthepresenceof

minorpetroleumcontaminationinshallow

soil,exceedingtheD.C.MunicipalRegulations(DCMR)

Tier0SoilStandardfor

TPHof100mg/kg.Theverticalextentofimpactiscurrentlynotknown,

althoughbasedontherelativelylowconcentrationimmediatelybeneaththe

staining,thedegreeofimpactappearstobeminor.TheTPH‐DROdetectionmay

alsoberelatedtourbanfillencounteredinthis

boring.



AnalyticalresultsforasoilsamplecollectedalongSStreet,SWfromadepthof5

to10feetbelowgradeindicatedminorpetroleumimpact(TPH‐DROat119

mg/kg).ThisTPH‐DROdetectionconfirmsthepresenceofminorpetroleum

contaminationinshallowsoil,exceedingtheDCMRTier0

SoilStandardforTPH

of100mg/kg.Benzo(a)pyrenewasalsodetectedat8.67mg/kg,slightly

exceedingtheDCRisk‐BasedCorrectiveAction(DCRBCA)ScreeningLevels(SL)

forconstructionworkerexposureof5.92mg/kg.OtherPAHsandmetals

(arsenicat4.8mg/kgandchromiumat10.3mg/kg)weredetectedat

concentrations

exceedingtheEPARegionIIIRisk‐BasedScreeningLevel(RSLs)

forresidentialsoil.Thesourceandextentofimpactisnotknown,although

urbanfillwasencounteredinthisboring,whichcommonlyyieldssimilarresults.

Apotentialexistsforsubsurfaceimpactsatadjacentsitestomigratetothe

subjectsite.



SREC#3: Minorgroundwatercontaminationassociatedwithchlorinatedsolventsat

Square0607,Lot0013

PotentialImpact: Low

Explanation: AdvantageEnvironmentalConsultants,LLC(AEC)detectedchlorinatedsolvents

(tetrachloroethylene,trichloroethylene[TCE],1,2dichloroethane,andvinyl 

chloride[VC])inagroundwatersamplecollectednearthesoutheastcornerof

thepropertyat

Square0607,Lot0013duringaPhaseIIassessmentconductedin

2005.Thesourceofthechlorinatedsolventsisnotknown;however,Geomatrix,

Inc.indicatedan“asphaltpit”inthisareaofthesubjectsiteonFigure3 oftheir

PhaseIIassessmentreportcompletedin1990.Chlorinatedsolventsdetectedin

groundwatermayalso

beduetomigrationfromsomeunknownsource



29

upgradientfromtheproperty.Agroundwatersample collectedbyHaley&

Aldrichinthisareaofthepropertyconfirmedthepresenceofminor

contaminationassociatedwithchlorinatedsolvents,includingrelativelylow

concentrationsofTCEandVC(43.9and38microgramsperliter[µg/L],

respectively).TheVCconcentrationexceedstheEPARegion

IIIRisk‐Based

ScreeningLevel(SL)forresidentialexposureviaingestion,whichmaynotbe

applicabletothesubjectsite.Theextentofimpactisnotknown,although

volatileorganiccompoundswerereportedlynotdetectedingroundwater

samplescollectedbyAECatseveralotherlocationsin2005,suggestingthe

extent

maybelimitedtothesoutheastcornerofthepropertyandarethus

unlikelytoimpactthesubjectsite.



SREC#4: SubstationoperationsatPotomacElectricPowerCompany(PEPCO)Square66 3,

Lot0024

PotentialImpact: Medium

Explanation: Duetotheageofthesubstationandthenatureofactivities

takingplace,there

isapotentialforleaks,spillsorpolychlorinatedbiphenyl‐containingmaterialsto

bepresentatthislot.Apotentialexistsfortheseimpactsatadjacentsitesto

migratetothesubjectsite.



HISTORICALRECs



TheASTME1527‐05StandarddefinesanHRECasanenvironmentalcondition

“whichinthepastwould

havebeenconsideredarecognizedenvironmentalcondition,butwhichmayormaynotbeconsidereda

recognizedenvironmentalconditioncurrently.”



ThisPhaseIassessmenthasrevealedthefollowingfourHRECs. 



HREC#1:LUSTcase#96030atthesubjectsiteandrelatedtoatank

containinggasolinewasreportedto

beimpactingsoilandwasgrantedregulatoryclosure.Basedonitsstatusandimpactsbeinglimitedto

soil,impactsfromtheLUSTdonotpresentathreattohumanhealthortheenvironmentundercurrent

siteconditionsanditisunlikelythattheLUSTwillrequire

additionalregulatoryaction.



HREC#2:LUSTcase#92076onanadjacentpropertytothewestofthesubjectsiteisassociatedwitha

gasolineLUSTthathistoricallyimpactedsoilandgroundwaterunderthesubjectsite.Thestatusofthe

LUSTreleaseislistedasclosed.Basedonitsstatus,

impactsfromtheLUSTdonotpresentathreatto

humanhealthortheenvironmentundercurrentconditionsanditisunlikelythattheLUSTwillrequire

additionalregulatoryaction.



HREC#3:Anon‐site20,000gallongasolineLUST(case#93094)atonanadjacentparceltothesouthof



thesubjectsiteat

Square0607,Lot0013historicallyimpactedsoilandgroundwaterunderthesubject

siteandwasreportedinAugust1993.TheLUSTcasereceivedregulatoryclosureinMay1994.Basedon

itsstatus,impactsfromtheLUSTdonotpresentathreattohumanhealthortheenvironme ntunder

currentconditionsanditisunlikely

thattheLUSTwillrequireadditionalregulatoryaction. 



HREC#4:OpenLeakingUndergroundStorageTank(LUST)case#93051onanadjacentparceltothe

southeastofthesubjectsiteatSquare665,Lot0024,PotomacElectricPowerCompany(PEPCO)

GeneratingStation.In1993,significantgasolineanddieselcontaminationwas

discoveredinsoiland

groundwateronthenorthernportionofSquare665,Lot0024.PEPCOperformedmonitoringand



30

remediationactivitiesduringthe1990s,removingmorethan1,000gallonsofliquid‐phasehydrocarbons

(LPH).However,thelatestgroundwatersamplingdatareviewedina2005PhaseIindicatedthattotal

petroleumhydrocarbonsandbenzene,toluene,ethylbenzeneandxyleneswereaboveapplicable

regulatorystandardsincertainmonitoringwells.Basedonitsstatus,

impactsfromtheLUSTdonot

presentathreattohumanhealthortheenvironmentundercurrentsiteconditionsanditisunlikelythat

theLUSTwillrequireadditionalregulatoryaction.



DEMINIMISCONDITIONS



TheASTME1527‐05Standarddefinesdeminimisconditionsasthoseconditionswhich“donot

present

athreattohumanhealthortheenvironmentandthatgenerallywouldnotbethesubjectofan

enforcementactionifbroughttotheattentionofappropriategovernmentalagencies.”TheASTM

E1527‐05Standardnotesthat“conditionsdeterminedtobedeminimisarenotrecognized

environmentalconditions.”



This

PhaseIassessmentrevealednodeminimisconditions.



SUMMARYANDRECOMMENDATIONS



Insummary,severalRECswereidentifiedduringthisPhaseIassessmentandsubsequentPhaseII

sampling.PhaseIIsubsurfacesamplingdescribedinthis reportdidnotdelineatetheextentof

petroleumandmetalimpactsdetectedinsoilorgroundwater

atthesubjectsite,andbasedonthe

concentrationsdetected,itisouropinionthatadditionalactionmayberequiredundercurrent

conditionsatthesubjectsite.



Basedontheanalyticalresultscollectedtodate,soilremediationmayberequiredtoreducethethreat

tohumanhealthfortheon‐Site

constructionworkerandfuturestadiumoccupantandtoreducethe

threattogroundwaterquality.PotentialorderofmagnitudecostimpactsfromtheidentifiedRECsat

theSiterangefrom$240,000to$3,600,000.Thesecostsandtheirassociatedassumptionsare

summarizedinTableIII.Thesoilscreeninglevelsandgroundwaterscreening

levelsusedforevaluation

ofimpactsattheSitedonotaccountforcumulativehealthrisks.Additionally,groundwaterremediation

and/orvaporintrusionmitigationintheconstructionofthestadiummayberequiredtoreducethe

threattohumanhealth.Thepotentialorderofmagnitudecostsforsoilremediationarebasedon

the

currentlyavailabledataunderstandingthatseveralunanticipatedSiterestrictionsassociatedwithan

activesalvageyardandunknownsubsurfacerestrictionswereencounteredduringtheinvestigation

activitiesdescribedinthisPhaseIassessment.Thepresenceofasignificantlayerofconcreteunder

portionsoftheSitealsorestrictedinvestigationatselect

locations.



31

9. Credentials



ThisPhaseIassessmentreportwaspreparedbyKarinHollandunderthedirectsupervisionofDavid

Schoenwolf.Qualificationinformationfortheprojectpersonnelisprovidedbelow.



KARINHOLLAND

SeniorSpecialist



Ms.HollandreceivedaBachelorofArtsdegreeinNaturalSciencesfromtheUniversityofCambridge,

UnitedKingdomin2002

andaMasterofSciencedegreeinLawandEnvironmentalSciencefromthe

UniversityofNottingham,UnitedKingdomin2003.Ms.Hollandisinvolvedinavarietyofprojects

includingenvironmentalsiteassessments,soilmanagement,and fieldsampling events.Her

responsibilitieswithPhaseIEnvironmentalSiteAssessmentsincludesitehistory

research,interaction

withclientsandstateregulatoryagencies,interpretationandevaluationofenvironmentalconditions,

anddevelopmentofrecommendationsforfutureinvestigations.



DAVIDSCHOENWOLF,P.E.

PrincipalConsultant|SeniorVicepresident



Mr.Schoenwolfhasover36yearsofexperienceintheengineeringandenvironmentalconsulting

practice.Mr.Schoenwolfhasbeenan

Officer‐in‐chargeandprojectmanagerforgeotechnical

engineeringandenvironmentalevaluationsforabroadrangeofprojects.Hisscopeofprojectshas

rangedfrompreliminaryfeasibilitystudies,environmentalsiteassessments,andmasterpl ansite

developmentstudiestocompletedesigninvestigationsformajorprojectsincludingpreparing

geotechnicaldataandinterpretive reports;

preparingcontractdocuments,technicalspecifications,and

reviewingcontractorsubmittals;instrumentationmonitoring;andconstructionconsulting.Heisa

registeredprofessionalengineerintheDistrictofColumbia.



32

References



1. TopographicMap,WashingtonWest,DistrictofColumbiaQuadra ngle, UnitedStatesGeological

Survey7.5minuteseries,dated1983.

2. Haley&Aldrich,Inc.,sitevisitconductedbyKarinHollandandChristian‐NoelTschibeluon28

August2013.

3. Tat‐LinAngusofPEPCO,TerranceJonesofAkridgeandJohnKeller

ofSuperSalvage,Inc.

interviewswithHaley&Aldrich,Inc.,on 28August2013.

4. EnvironmentalDateResources,DatabaseReport,datedJuly2013.

5. “AssessmentoftheBuzzardPointProperties,”preparedbyGeomatrix,Inc.,preparedfor

PotomacElectricPowerCompany,datedMarch1990.

6. “PhaseIEnvironmentalSiteAssessment,Buzzard

Point,Squares609&611,2

StreetandV

Street,SW,Washington,DC,”preparedbyURS,preparedforPEPCOHoldingsInc.,dated4April

2005.

7. “PhaseIEnvironmentalSiteAssessment,BuzzardPoint,2

StreetandVStreet,SW,

Washington,DC,”preparedbyAdvantageEnvironmentalConsultants,LLC(AEC),preparedfor

TheJohnAkridgeCompanies,Inc.,dated10June 2005.

8. “PhaseIIEnvironmentalSiteAssessment,BuzzardPoint,2

StreetandVStreet,SW,

Washington,DC,”preparedbyAEC,preparedforTheJohnAkridgeCompanies,Inc.,dated10

June2005.

