Document 6BrjJNNmnvdJ8oqndbxg6jO9d
Attachment |
Co
Pagel
AR226-1775
rath
AIR DATA DUPONT WASHINGTON WORKS SITE
"efTfhoirstss,ubbmoitthtaolfswuhmimcahriarzeesasasvoaciilaatbeldewiintfhorPmFatOiAonifnraoimr atthethfeoDlluoPwoinntg tWwaoshdiantgatcoonllWecotrikons site:
1. TSthuedfyi"rs(ttehfefoSrttudhya)s. beTehnedSetsucdryibiesdbteoinEgPcAonadsutchteed"Aiinr2Mpoadretsl.inTghVeerfiirfsitcpaatriton apenrdtaiisnpsarttooafirPmhoansietoIraictnigv/imtioedse.liTnhgeastetchoenfdenpcaertlipneerotfaitnhsetoWaasirhington Works site smuobnmiittotrailnpgr/omvoiddeelsinEgPiAn wthiethcodamtmaufnriotmytahnedPihsapsaertI owforPkh.asLeaIbfoarcattivoirtyiesd.ataThfirsom this work is included as Attachment 1.
2. TunhdeersteackoenndaesffaonrtiinstearnPaalrtDiuclPeoSnitzeprDoigstrraimbudteisoingAnneadlytsoisv.eriTfyh/irsefeifnfeoritnwpuatss to air
deposition modeling. 2.
The laboratory data for this effort is included as Attachment
NthoitsejutnhcattutrheerAeiprreMsoednteloinnlgy VienrtiefrimceadtiiaotneSrtesuudlytsi.s nWoet caormepsluemtem;artihzerienfgorseocmoeommfetnhtes at otbhesePravrattiicloensSi0zeasDsiissttriibnuutnidoenrasntaalnydsiinsgoisfutnhdeerdartea.vieAw raenpdorwtildlocsuubmmeintttiendgtroeEsuPltAs pfroonm its completion
Intermediate results from the Air Modeling Verification Study
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`sThhoirwteyd-tthhraete aptainros otifmmeodineltehids/mpohansietoorfetdherepsurlotgsrwaemredigdetnheeramtoeddeilnuPnhdaesre-pIr.edRiecstultthse calolnccaesnetsratthieonmoodfePlFedOAvailnueaicr,itahsercoovmepra-rperedditoctqeudanotrifwiaasblienmaognrieteomreendtvwaliutehs.theRamtehaesru,riend vparleudei.ctiNoontreestuhlattsoivnera-cpornesdeircvtaitoinvies ecsotnismiadteeroefdaainraccocnecpetntarbalteiorness.ponTsheesfinocleloawninogverobservations can be made at this intermediate stage:
000004
z.
Page 2 May 19,2004
+ cMaosedse)l.edOnvaalvueersaogvee,r-tphreemdoicdtelmeoavseurr-perdedviacltueeds b3y3%aoppfrotxhiemtaitmeely(forti1m1eso,fwtiheth3a3 range
`omfe1as2u1re0d7v3alufeo.r alTlhbiustloanrgeercaosvee.r-Ipnreodniectciaosne,isthaermesoudletolfcovhearn-pgriendgicwteidnd24cotnidmietsiotnhse
that that
occurred day.
throughout
the
24-hour
period
and
are
apparent
from
the
wind
rose
for
Moqduaentliefidabvlaelluiemsit.areFionr a2g2reoefmtehnet3w3ictahsessa,mporli6n7g%roesfutlthsetthaitmem,etahseumroendibtoerleodw vtahleue
was was
below the quantifiable limit and the also below the detectable analytical
model value.
predicted
a
quantifiable
number
that
Results from a Particle Size Distribution Analysis
APFsOaAmplininagmbpireongtraaimrwatasthceoWnadsuhcitnegdttoonevWaolrukatsestithee. paLratbiocrleatsoirzey ddiasttarigbeunteiroant(ePdSdDu)rionfg dtheipsossiatmipolninmgodperloigngr.amDaerpeosiintciloundeodfiPn FAtOtAacihsmceonntsi2d.erPeSdDa miingfroartmiaotniopnaitshawnayinapnudt for air apdrdoivtiidoinngtoapnruopvdiaditnegd aPSmeDasisuroenoefatchceepPteSdD,watyhets0avmeprliifnygdepproosgirtaiomnaelsstoimwaatess.useIdn to calculate 72-hour average ambient air concentrations at 4 fence-line locations.
Results from the sampling program are summarized below.
+ AatnfaovuerrfaegneceP-lSinDewlaocsatciaolncsu.laTtehdeuasvienrgadgaetaPScoDlliescstehdodwunriinngthae7f2o-lhloouwrinsgamtapbllei.ng event
Particle Diameter, microns 40
Cumulative % Less Than Particle
Size 0.056
[os os
oom [man
7 0.072
65.1%
Coa 7] 0.598
1
ThcoelsleectreedsualtttshceoWmapsahriengfatvoonraWbolrykwsitshitper(ecviircoaus19P9S5D),msehasouwreimnetnhtestafbolrePbFelOoAw.
veCCos
May 19P,a2g0e0s4
Particle Diameter, | `microns
Mass Fraction | Cumulative % Less Than Particle
Size
Coo 1 s sem |
[o C a o 02e 67| | ss ew |
+
The overall follows:
mass
concentrationof
APFO/PFOA
for
the
3-day
test
period
is
as
Station 1:
Station 2:
Station 3: Station 4:
0.0099 ug/m'
0.1099 ug/m'
0.1030 ug/m' 0.0034 ug/m'
CVeornscaetnitlreatSiaomnpslicnogmp(aOrVeS)fatvuobreasb,lywhtoerperetvhiatoumsaj2o4r-ihtoyuorfsmaomnpiltionrgecdoldlaetcatewdasusbienlgoOwSaHA q3udainftfietratbiyonlelsismitthoafnap6p%r,osxhiomwaitneglyac0c.e1p4taubgl/em3p.recCios-iloonciantethdessaammpplleisnfgrmoemthSotadtoiloongsy2. and pAlrseov,iotuhse OcoVnScentturbaetsiaonmsplaibnogvwehaircehcosnhsoiswteSnttatwiiotnh4parsedtihcetepdremdoodmeilnarnestulutpswainnddwliotchation and Stations 2 and 3 as the predominant downwind location.
000006
May 19P,a2g0e0d4
Table 1. Summary of Phase 1 Intermediate Results for Modoling and Monitoring
Eve1 nt 10Da5t0o3
25 9m003
7 8
12003 203
1s o12s10s3
RocopAtMoSr-Lo1cation
Moudgeilme3d, 002030 102080 000000 000
Moniutgomr3ed, <0011s4 <003 <0wiz <ots
Overpredictions 1 43
21 t10i8m3o AMS23 5 ues
3187a9 o0o9rs 300 or
2a39 43
78 11221010033 5 1zie0s
o08t3 <003
28
0&7 on
60
1 oss
000 017
1 2
tosis nz
Ams
001000 o<ot1s4
78 11221010033 9 11803
0 102
<1 os
73
017 os
2
1 ounsis
003 <oi4
21 m1meoss0s Ams:s 5 11903
001 021
<1 <014
000 <0is
5
7 8
200s 12103
000000 <<0014
15" o12s18s03
000583 <0013s
18
21 ntoszis Anse 5 112003
000020 <00114s 000 <0
s7 i1o20n03 1 oss
000100 <<0o1rs2 000 <0is
000007