Document NG3LLV01g3VqDGeMJLGoXReyR
AR226-2279
DuPont Modeling Methodology and Resul
'-^'''^^j^^yig^SSS&'SSSsSss^^itw.tSussiSS^^
^$^w^w^ft,^t<a<tei^a^a^8^^^
Debbie Mulrooney DuPont Engineering Technology April 24, 2002
Modeling
Methodology
. w^;r:s.:??W:?,.a*<W-ar:"^-'^--i*?<--4^;;"a;'s^^
EPA's Industrial Source Complex 3 (ISC3) Mo
Followed procedures in EPA's Guideline on A
Quality Models (Appendix W)
^ BPIP model to evaluate building downwash C
effects
Terrain elevations imported from USGS
electronic file
Receptor grid with 100-meter spacing -^'-fe
^n-site met data (t?96) ,
^(d U^^i^^OH A'- v/ft^ /-''/' d^
^u,+
CA,-^'"' l^i ^i ^^^ Ari< (ir-.'/ <^ <)
Modeling
Inputs
,T..-"y.-w.in^yv.vS*^-*-W. ^-frvo' ^^*F't''.-/"ft"f^**^~"'-v-,"-.^. ''^" . .;^ ,-aw.-..^>'>"-''.i'.;-.".'""*> ''>' ..).. ' -,i=iW.tS.s..^,,ri<
All inputs to the model were identical
information submitted pursuant to
^^ Consent Order: ^ ^ stack parameters
emission rates
buildings locations and heights
scavenging coefficients
77/2^)
^ ^c ^^
Modeling Inputs - Stack Parameters
WKmMsSsWfVf^r^.
f--:yi i'-s. ...
1823A 815D 815D
T7IME
662
T6IFCE
644
T6IZCE
699
1353A'
164.5E
652
Pre-Existing
164-2E
658
614A
163-E-26
231
614A
163-E-ll
232
781
163-E-33
216
1953
242
242
2365A
C1FSE
274
Semiworks Application R022EEF6
Semiworks Application R022EEF86
Semiworks Application R022EEF87
Semiworks Application R022EEF89
442025 442084 442091
441920 441923 441952 441953 441960 441954 441787 442086 442069 442058 442063
4346847 4346835 4346836
4346767 4346756 4346776 4346766 4346788 4346741 4346744 4346624 4346627 4346634 4346635
150 59 63
70 68 93 81 60
114.5 110 47 49 49 49
1.33 1.5
18-1ft
1.96 1.63 0.67 0.67 1.3 0.5 0,69 2.5 2.0 2.0 2.0
3,349 18,000 18000"
9,800 2,800
500 600 2,750 1,250 1,000 8836 7540 1885 3770
40,2 169.8 21.2''
54.1 22.4 23.6 28.4 34.5 106.1 44.6 30.0 40.0 10,0 20.0
"Vent ID T61 ZCE consists of 18 one-foot diameter vents, The flow rate given is the total for all 18 vents, ''The velocity listed is the velocity calculated for one individual vent.
/<-o^-
s^ 2
"Z^^sTA
<^\ /-&. -r^<-- j! A71 J'A /?ioA/ --
Series Sr\tS H /</-j(// - 8 /44
Modeling Inputs Emission Rates
ftis^"wwvwwtp0twvi'iin
TIME
T6IFCE T6IZCE 164.5E 164-2E 163-E-26 163-E-ll 163-E-33
242 C1FSE R022EEF6 R022EEF86 R022EEF87 R022EEF89
662. 644 699 652 658 231 232 216 242 274
0 0.54
0.9.
0.9 0.9 0.11 0.09
0
0.9 0.03
1 1 1 1
1 0.46 0.1 0,1 0.1 0.89 0.91
1 0.1 0.97 0 0 0 0
0 13,977
0 33 79 3,541 4,680 0 3,510 5,414 12
0.3 3
0.6
0 0.2010
0 0,0005 0,0011 0.0509 0.0673
0
0.0505 0.0779 1.73E-04 4.32E.06 4.32E-05 8.63E-06
0 0.1086
0
4.27E-04 0.00102 0.00560 0.00606
0
0.0454 0.00234 1.73E.04 4.32E-06 4.32E-05 8.63E-06
^^ %,^ -S.
^ ^/-^ ^ a^^ f'^lf-^
^e.^/'f-f^^t ^ /^^ )i" ^'^
( /^Q^- J{0 />/ltA ^> ^trt ^ /IV^if 1^^ K/ Mt
Modeling Inputs - Particle Phase Scavenging Coefficients
^"^'il^s-i^.y^M^ass^^iiays^^
U.;r^.iS.!i.'rt;S-,.T,;..)'.'.K-- <t'<18"^aiai:?....^>-A^/<.i>;i<!i5
Particle Phase;
Particle Diameter (microns)
0.2 0.4 0.75 2.0 4.0
Mass Fraction
0.538 0.267 0.035 0.127 0.033
Particle Density (g/cm3)
2.2 2.2 2.2
1.1
2.2
^^t/'Sy/^-tS. i3,/-(. ^Q./"//^(
M>^ ^ ft^rS-, ^ihSii /i^iLc,!(i^ Q ^f^LS-t,
f^ ^%^ 5'->c- <y'-y^-. &
^tf-h'^f tjf-
. 7h,
cS, cavengi.n^g*f'.^^'CV^o^ efJAfnJ^ixc'"^"i.en^"tr"s/-v'^* ^
ss.i,M
Liquid
Frozen
Precipitation Precipitation
(s^/mm-h-1) (s-^mm-h-1)
1.2xl0-4 5x10-'
4x10'' 1.67xl0-5
4x10'^
1.33xl0'5
1.3xl0-4
4.33xl0'5
2.8xl0-4
9.33X10"'
Modeling Inputs - Vapor Phase
Scavenging Coefficients
' '";.',=.-'".:i.S-Sw-W
~7A<it.
-jyft ;-!.--S^--
O"
'"'^^^^'--^"""'fi^iy-iST"
.-.'I- ^:f, st.1. !.;
^/i-inUs
S^^-e
Only one scavenging coefficient ca entered into the model c^'e. 7^ t^
^, 4*-&;<".
Coefficients presented in consent o submittal must be adjusted by divi rainfall intensity
Worst-case coefficient (based on 1 rain intensity) was used
1311x10i-2
1 hnrr
hrirr
x------ x---- =
-
6
.
4.
x
1,
^
0
hr 360& 1mm
hr =6AxlQ s'mm
Modeling Results - Predicted Ground
Level Concentrations
^4-l/t/--G l'^ -^16^' W.< US
^^A. - ' S'^^^ l^-^ 6!nM.,
^.^yA^i'^^-'""^*"!"" ' i- .1,' y ,,- f.'i-'---.' 'T'" ---'^^^.'/s---.--
_
.
_^:-&,i2A.:.<^ii^-$>.<y*(;^^^'f/'t*^'^'A"rfi.^..^ '^'i- 4^"^ir-S4Sr*-Ati5h C8 2000 Actual Emi[sc<s:iIonnn<s
Annual Average Vapor Concarrtraaons (ug/m3)
^a.^^9 40-SEftl" fc^f^'* < j'lfr^^t.^.
43485QO-------
434800&--'
4347500-
4347000-S 434650(H
1, fce.0 *-U
n\t/>< C ^
^ v rMhac.
."
4346000-.
-MOOOO
440500
441000
141SOO
442000
442500
443000
M3SOO
444000
M
^(p
'''c^f-
^^ir
Modeling Results - Predicted Particulate Phase Deposition
K'6-Ainwca Vf- Lr UW* t >iviw4tf k^w*
C^CTtiWW*SHMaiWWf*W*CITO1 WWlCOEWAUt
xf
Modeling Results - Predicted Vapor
Phase Deposition Rates
.. rfwia^.iW'we'-wi "-ti."i, - :<'*.?*< "^^-Sr.ifasrttMaa.i-
KKUECTHAMe Ct 3000 AebJ*! Brnhwion*. VJpof PtUtM
Wt D^io^tfon ($/in2/y)
iSG-ACKblOO Vmr Or L*)u* C'niaMM Siftiuit
MOEUNa ornoKi;
CONC. WOep. RURAl, ELV. OFAUl-TtWeTDM.
WW1Wi 4e
owpm''wi %DP
UX o.oous
\ U*1;
ym^
QATE!
ma/awa
MWeCT-PlOTHO,. C^CCVIf\WUNlhQro*J MORXKACTODV lAIAOCOAUA.r
Little Hocking Well Field Watershed
. j-fVS ^'.'/^.-"".-. .: s'(..--W--*'
Little Hocking Watershed Receptor Grid
4348500 4348000-
4347500-' 4347000-^
r"-':.m'.l^.^^.^'y':'^^fsti'^w^^ii^^ .^-^i%K^^^^^-f"^<wa<>&'^.*.!iSS^i^^
++ ! <-++++++++++++++++++
+++++++++4-++++++++++++ +++++++++4-++++++++4-+++
+-.--)..l +4-+++++++4.4--)-+4.++4.4.
+++++++++4-++++++++++++ ++++ l'+++++-r++++++++++4-+++++ 4- +-(-++++++ I +++4-+++++++++++++ +++++++++++ 1 +++ h+4-4-4-+++++++ ++++++-;-+++++++++++++ !+
j, 4-+4-4.+++4-+.++++4.+4.++4.4.+
-+4-++++++++-1- ++++++++++
4346S004
4346000441000
441500
442000
442500
443000
443500
444000
'444500
M H 0 CTl LJ
y s
n o o
w
Little Hocking Watershed Deposition Result
--^.-^-''.A"yi.K^'.^^a'f^^^w^'x'*^4^-1s'a'6^^'^^s'1,2"*^^^
Receptor grid area = 2.57 km2 Imported deposition rates from model into spreadsheet to calculate total deposition ov
the watershed:
Particle Phase
Dry Deposition = 6/966 g/yr Wet Deposition = 12,484 g/yr Total Deposition == 19/450 g/yr
Vapor Phase
Wet Deposition = 1,642 g/yr
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