aaviaa4 April 2~ 

EPA will need more extensi ve analysis of the chellicals •~er 

in the emissions to estimate risks froa both direct and ir. exposures. The r isk assess111ent cal lac!. for i n Draft St 

involves two a iqnificant expansions from what was t~ 

conductac1 previously: {1) the number of routes of exposure ' 

expanded and (2) tha numbar of compounds analyzec1 and used 

risk assessllent will be expanded in order to identify as l 

fraction of the eaisaions as is realistically pos~ible. 

While the actual list of coapounds ·the facility aust 

and analyze is to be deter~~ined by the perait 'In' iter, the fol 

quidance is offered to assist the parait writer in develc 

site-specific list.· 

.a. The first list the panoit writer should consider requir: 

facility to aample and analyze is the 12 -tala cur 

requlatec1 unc1ar the &IF rule. (For boilers and ind~ 

turnao;;ea, these aetala IIIUSt be addre.aaed; tor incinerat< 

is lltronqly racollllendad they be ac1c1resaed. ) Tbe secor 

the permit writer should conaider requirinq tha facil 

.ample and analyze are the compounda raco-anc1ed i~ Tab: 

Attachaant A (a.k.a. the "PIC list•). The permit writ 

also want to include soma of the compounds on T"bl 

Attachllent A. The coapounds on Table 2 ara curre ly 

evaluatad and aay be r~nded at a future point iJi 

b. Additionally, it is reco~ed that the per11it writE 

require the analysia of the 20 larqeat peaks obtained 

GC-KS analysis of the trial burn.. This analysis vill h• deter~~ine whether there. are any ca.pounds that are not 

attached PIC list but that are present in high aaount 

ai;ht significantly affect the ri*lc. · 

c. The PIC list includes a fUll substituted dibanzo-p-di.o: 

dib&m:ofuran analyais. It is rac-ndad that the 

writer require the facility to perfoD tbia analysis it 

to identify cOIIpOunde vith reaolution that will idant; 

nuabar of chlorine (or bromine or other balogene) mo: 

all4 whether the COJ19ener bali a halogen on the : 

positiona. Tbe purpoae for this rasolution is to c:a; 

Toxioity Equivelanta (T!QS) Which are uaed to calculat 

at the point of exposure. . . Tbera are 7 pc 

2,3,7,8-aubatituted dibenzo(p)dioxin c~anars, ranqir . tatra-subatitutad to oc:ta-aubatituted conqenera, 10 possible 2, 3, 7, 8-aubstituted dibuu:oturan c:onqenert 

ranqing from tetra-substituted to oc:ta-aubatituted c:o~ 

d. The PIC liet alao include• a full polychlorinated b j 

(PCB) scan. It ia rec-nded that the penit vrit·~ t 

the facility to perform thia analyaia in orc1er tt .et 

.:he total PCB' s. · There are 209 poaaible PCB c:o~ 

2 

Fod 2 .. 17 

VES 007700 
Revised April 12, 19'4 

ranqinq from mono-substituted congeners to deca-substituted 

conqaners. 

e. The parait vriter should also require the facility to saaple 

and analyze any additional highly toxic compounds that will be 

in the trial burn waste in high concentrations. The 

formulation of the wastes uaed in the trial burn is intended 

to provide a representative mixture of constituents that will o~nerate Pies that are characteristic of emissions from the 

tAC.L.L.I. t:.)' .L~I t-'0 4 ....... ............ -- - .. ........ .. ~~ ... - _,...,.., 

establish protective perait conditions. However, so- of 

thitse co11pounda may survive the coabustion process and be 

eaitted intact. Hence, th.e list of principl e feed 

constituents should also be added to the list of ccmpouncla for 

which the facility should aa.ple and analyze. sae 

Attachment 8, "Guidance on Trial Burns, • tor a full diacusaion 

of factors to conaider in the selection of waste constituents. 

f. The parmi t vri tar aay ·also require sa.aplinq and analyais of 

nit.roqanate<l orqanic c:o!llpOUn<t.. At this staqe of developaent 

of the draft PIC list, not all of these eoapounds· have been 

added. It ia anticipated that EPA'• ataek a&~~pling proqraa 

will provide further quidance for nitroqenate<l PICa that the per~~it writer aay require of the facility. Nitroqenated PXC. 

are exp.cted during the aaxiaum tuperature teat. 

q. 1'1\a perait writer aay al50 require aaaplinq and analyeia of 

any additional Pica that the ~it writer believes are 

illportan t • 

Further quidance on the selection of coapounda for analysis is 

provided in the trial burn quidancs tAttachaent 8). 

oevalopaant of the PIC List 

The draft PIC list ( 1. e . , Attacluuant A) was developed trOll 

existinq data in EPA • s posa .. aion as wall as liate of toxic 

ooapounds from certain EPA proqra... Since these lists were not 

developed to be liate of toxic PICe, coapoqnds have been deleted 

fr- the lists that appear to be inappropriate. EPA recognizes the 

iaportence of uainq speeit'ie foeuaed studi .. to develop a PIC list 

that i.e appropriately protective of the anvironilent and not 

excea!l iv•ly burdenaOM on the requlated co.aunity. H.,.,.ver, osw 

considere it appropriate to uae a draft list that is baaed on 

existing data tor an interim period. Ais ·EPA collects ad.ditional 

PIC data, this liet will be revised. 

source Uste include<l: 

• The hazardous waste constituent list in 40 CFR 261 

Appendix VIXX (Office of Solid Waste-OSW) 

• The Hazardous Air Pollutants (HAP) list (Office of! Air 

Quality Planninq and Standards-OAQPS) 

3 

Fod24418 

VES 007701 
DJlAJ'T 

• 

Revised April :1. 

Offi ce of Rt!search •nd Oeve!opaent l ist of o .n 

compounds found in coabustion dt!vices devt!l 

for the Draft Addendua to the Indirect E 

Oocu111ent (includes PICa found in hazardou: 

co111bustion devi c es and other coabustion dev 

Inappropriate coapounds were delated from this list 

following basis: 

- coapound was a ~ticide that was un1ikelv to be a . ........ .,.. ......... . - ........ __ ., • ..,. .... ~. •~ ..,a; ..n &UA C41t9'-'..£ci •a a.ruq 

- Coapound listed bt!cause ·it is a carci.noqanic sugar 

sul>stitute . - Listings that are not chaaical specific such as •co< - coapound for which EPA doea not have a saapling and 

analysis aetbod deline•tad - Metallic coapounds ware deleted because of difficul; 

analyzing the specific coapounds; metals •re sti: ~ncluded as el .. antal totals - If the coapound had a low octanol-water partition . coefficient and did not have inhalation toxicity (i.e., it vas not bioaccuaulative and there vas r 

direct inhalation toxicity data, thus it liould nc 

affect the risk assesa .. nt) - The coapound had low toxicity valuaa - Naturally occurring plant toxins 

Certain coapounds ware kept on the list such as: 

- Pesticides that havt! a aolecular structure that is s 

enough to be of concern as a PIC - coapounds with very high octanol- water' partition 

coefficienta 

Planned Further Developaent of List 

EPA is undertakinq experiaental studiea ~citically di 

toward daterm1niJ19 which toxic organic coapounds are likely foraed in trace quantities froe ~zardous waste ~tion de 

The studiea will explore variations in coabustion conditio 

the' effect on the specific organic aolttQUlea relea.ed. The e 

will also focue on defining operating para .. tera that can 

the type, cb&racter, and quantity ot PIC aaiasions. 

Accounting tor Unidentified Coapound• 

One ot the concerns that baa been raised by the pull: that, evan with the lists described in th• previoua aectiODS, 

aay be a ai;niticant nuaber of unidentified coapounds i 

oisaions which will contribute to the overall rislt tro 

facility. While the risks associated with heavy -tal 

believed to be adequately addressed directly, given the r · -.: 

level of coapound identification, the rislca fro• un ... ~en· 

4 

Fed 2441g 

VES 007702 
DlllU"l' Reviaed April 22, 1994 

orqanic compounds could potentiall y be siqnificant. Presented 

below are two approaches for addressing those potential risks. osw 

raco!lllllends using the !irst option but solicits co ... ent on the 

second approach . · 

The first option assuau that the unidentified organic 

compounds are si11ilar in toxici ty and chemical properties to those 

'of the identified organic compounds taJten aa a Whole , including 

compound& !rom the PIC list and any other voluntarily idantiLied -~'1"'1,..., ..... "'1 ... .., ~ .. - 1!:1 ..... ..., ; ... - - .. "' .... ..\ ~ ......... \...., .. ,,.. .. _ ..... .. ,_ ...... .. .$ ..... ... 

Under this assumption, the total risks from the organic 

compounds would be equal to the risks fr011 the identified organic 

eoapounda multiplied by the ratio of the mass o! total 'organic 

eo•pounds to the mass· ot the identified organic compounds. This ia 

accomplished coaputation&lly by in=IUisinq the e•ission rate of 

uch ot the i dentified orqanic co11pounds by the ratio of the 

concentration of total orqanic compounds to the concentration of 

all the identifiec1 orqanic c0111pounds combined. Math ... tically, 

this may be written as follows: 

~there : 

OJ , odj • adjusted e•1aaion rate of coapound 1 

OJ • eeisaion rate of coapoun~i 

CJ • .tack concentration of coapound i (carbon ~is) 

Croc: • suck concentrat.ion ot total orvUiic car.boJI 

. Tbe riak assessment would then be conducted using the adjusted 

(i. e., increaaed) emission rate& !or aach of the identified organic 

compound&. (Note: no adjuataent is made to metale eaissione.) 

The aecond option would asawae that all unidentified organic 

compounds are carcinoqena and have a ~rcinoqenic potency that is 

si.Jailar to the compounds on -the PIC liet. Thia option vas 

developed to address the concern that any voluntarily identified 

coapounda, beyond those on the PIC list, would tend to be prillerily 

noncarcinoqens or low potency carcinogens. 

5 

Fed2.U20 

VES 007703 
Undar this assUIIption, the total carcinogenic ria •. f1 

organic compounds would be increased by adjusting the amiss. each ot the rqan c carcinogens on the PIC list as follows 

!'• 

vbere: 

QCPt,adj 

OCPt 

Ccp1 

cn1 

ccn ... 

Croc 

• adjusted eaission rate o~ PIC list 

carcinogenic compound i 

• eaission rate o~ PIC list carcinogenic coapound i 

• stack concentration o~ PIC list c arcin< 

co11pound i (carbon basis) 

• stack concentration ot noncarcinogenic 

COIIpound j (carbon buU) 

• stack concentration or non-PIC list 

carcinogenic compound k (carbon basis) 

• stack concentration ot total organic c; 

The risk · assesaeent would then proceed usinq the a< 

(i.e., increased) eaissions for the organic carcinogens 1 

list and the measured (i.e., unadjusted) .. issions for tne • 

oarcinoqens not on the PIC list and the orqanic noncarcine< 

The ratio for adjustinq the .. issions in the a))ove ecr 

should . be basad on the usa of carbon. This is bacar 

analytical methods typically llsed for measurinq total 

carbon are based on detection of the aaount of carbon 

released from thsraally oxidizinq the saaple. The rssults 

expressed on a carbon atoa ~is' or sa.s other basis C• 

propane) . Therefore, the asasurad stack qas concent>:ationa 

orqanic compounds that a>:e identified in the analysis aust 

converted to an equivalent carbon basis, ss appro~riats • . . Total orqanic carbon Analysis. 

A total orqanic carbon ('l'OCJ analysis b necessary to 

for the portion of the orqanic eaissiona that are not speci 

identified and quantita~d. The per1tit .writer should al: 

applicant the latitude to detenine the .. thod to be l 

asasure TOC.' At prssent, EPA caMot racOliiiSnd a specific 

Disc:ussions with the Office of bsearch and oevelopae 

underway which are intended to lead to the developaen· standard method. In the interia, the .permit writer should 

the applicant to daaonstrate that the aethod beinq used dou 

and 11aasure a variety of orqanic coapound types, such ae th 

of orqanic compounds found on the PIC list. Tbe 11ethod !d 

6 

VES 007704 
Revised April _22, 1994 

minimize any pos1t1va interference from the detection of carbon 

dioxido and carbon monoxide. 

Quality Assurance 

In order to encourage as ~omplete an identif ication of the · organic emissions as possible, the permit writer may require less 

stringent data quality objectives for the organic compounds which 

are not on the recommended PlC l tst . . For TOC,tha ~it writer may want to consider establishing 

specific quality assurance r~quireaents on a case by case basis to 

ensure the reliability of the data. 

Detection Liaits 

For compounds on the PIC list which are not cSetected, the 

permit writer should e valuate whether they are likely to pose a 

significant risk at concentrations near the detection lillit·. If . 

·this is ttl• case, or it the detection lilllit achieved during the 

trial burn is significantly hiqher than can reasonably be achieved 

using souncS sampling and analysis procedures, then these compounds 

should' be included in the risk assessment at an assuaed 

concentration of 1/2 the detection lWt. Other compounds which 

are not detected need not be considertd in the riak asaes-t. 

GUIDANCE ON TRIAL BURH~ 

See Attachment B. 

APPLICATION OP DATA 

See Attachment B. 

OTHER !MISSION SQUBCES 

The Draft Strat:agy is intaricsed to acl4reas risks froa 

collbustion units burning hazardous wastes. Ther.fore, the analyais 

should ideally address air emissions froa all' sources that are an 

inteqral part of the eoll))ustion operation, includinq activities 

such as .torage, blenciing, and handlinq ot V&JJtes ted to the 

COllbuation unit itself, as vell as storage and handling of 

coll))uation ruiduea · (e.q., flyaah, bottoa ash, and quench water) 

9eneratecS by the collbustion facility. For those facilities where 

theae other activities are likely· to contribute siqnificant .. issiona and tor whic:ll enouqh intoraation is available to analyze 

their illpaet, the follovinq approach is re~ndect : 

"PIIqitive" emissions generated froa these on-site sources 

include volatile organics troa RCRA-peraitted tanks, containers, 

and ·related equipeent (e.q., puaps, valves, and flanges) used in 

the storage and handling of liquid hazardous waste and puapable 

solids, as well as fugitive dust troa storage and hand.linq ot 

7 

VES 007705 
Revised April 22, 

combustible solids and co11bustion residues i n opel. t 

containers, waste piles, conveyers, and trucks • . Fugi t i ve emis 

of volatile organics from equipment leaks (puaps, ·seals, ! i tt 

etc. ) can be asti.Jnated on tbe basis of "Protocol for Equipaant 

Eaission Eatiaates• , Document No. EPA-453 / R-93/026. rue:; 

emissions of volatile organics !rom atoraqe tanks and contz 

can be .estimated udng the •ethodoloqy provided in "Hezardoua 

TSDF: Background Infonoation !or Proposed RCRA Air Eai t.at~ ards• . OoCUllletlt llo. EPA-45013-89-o:ZJ. 'nleae aethods baVt 

actapcea cor iipCtsdiQ.Iit&•• c ....-o.-..:u. ... o '"'uu.- ..... u "'"'""• .r .... _ ........... 

CHEKDAT7, which is available fro• the OAQPS Tecbnoloqy Tr~ 

Network (TTN) electronic bulletin board. Fuqitive duet ••is 

!roa open waate pilu and staqinq arne can be .. tUiated usu 

aathodoloqies described in "Hazardous Weeta TSDF - Fu~ 

Particulate Matter Air !llissions Guidance Document•, Doc 

No. EPA-450{3-89-019. Many of the calculations have 

computerized, as ducribed in •traer's Manual for the PM- 10 

FUgitive Oust Source Coaputer Model Package•, Document 

EPA-450/3-90-0lO, and are available froa the OAQPS TTN bUl 'board. .Eatiaation of fuqitive uiedons ueinq these ID€ 

requires that esti .. tes be llllde or -••ur-ents be taken c 

concentration of chemical constituent• (e.q., volatile orq• ... ivolatile orqanica, and aetala) in the wastes beinq used at 

aaterials and in the coabustion aeh reeiduale. 

Eaissions from non-RCRA collbllation unit. at • 

(a.q., power plants, etc.) and 'froa other RCRA facilit ies i 

qeoqraphic area would' not be directly included in the analye: 

woul d instead be considered as p~ of the backqround laval• 

Historically, human health riak auee-nte in the 

proqraa have focusaed on hiqh end individual riak or on ~ 

as tiaatu, such aa the hypothetical ·-•t e1tp0aed indiv: 

(liEI) . In the context of peraittinq banrdous vesta coabl 

tacilitiee pursuant to the EPA 'a draft etreteqy, it ia · recom 

that r i ek aeeessore place priaary eaphaaie on eharacterizir 

high end of the ranqe ot incUvidual rieke. This ia becauee 

anticipated that biqh end individual risk will weiqh beavi 

risk II&Da9ea&nt decieione related to paraittinq. 

IC81 11'XNC ISTIQTU 

As a first etep, screeninq eetilutu .. y be us• . deaonetrata that risk from a particular cOIIblllltion facili 

below a level of concern and that no further risk aaaet 

analyais is needed . Detailed quidance for concluctinq ecr< 

analyaee is provided in Att~cn.ent c. 

The a ttached guidance, which wae davelopecl jointly o : 

OERR, is meant to serve aa a •work book• for perait wr~t•• 

8 

Fed24-t23 

VES 007706 
DRAI"l' Revbed _April z:;: 

remaining parameters (other than 11adia concentrations) to 

reasonable ~aximua estimat.s of exposure. 

constituents 

For indirect exposures, the screaninq quidance recuse 

subset of constituent• which have bean j udqed to be or the 91: 

concern by routes of exposure other than direct inhalation 

A multiple-pathwav evaluation wl\ich • ...,hashed ~""" "'"• ,., .,... ct.t~ uG. <.:c. wu .uc .a. u:) coapouna• o n cne P.CC .Ll.at. f 'actors tb.l 

considered in choosinq an app:1:0priate aubaat to address 

i ndirect expoaure screening quidance included the illporta 

indirect elCpOSure pathway• (relative to the direct inha 

pathway) and the relative toxicity ot the co~pound. ' 

currently evaluating the reaaininq ccapounda on the PIC 1 

deteraina whether additional coapounda ahould be included 

screening quidance. 

The aubaet ot constituent• that waa selected for incluE 

the quidance tor a•••••1"9 indirect exposures is ~~ada dioxin-like ccapounda (PCDD 'a anc1 PCDF's) 1 polycyclic ar 

hydrocarbon& (PAH'a ); polycblorin.ted biphenyls (PCB's) 

11etals. Also i ncluded are selected chlorophanols 1 chlor 

benr:enea, nitroaroaatics, and phthalatea. 'I'baae co11pounc 

a110nq those that are aoet Crequeptly detected duri nq atac'< t 

ot combUstion devices. 

Other constituents identified in the stack eaiasions th 

present at levels of concern tJu-ough indirect exposure 

should also be included i n the sc:ratning analysis. As indi 

osw is evalu.atinq additional ccapounda for poaaible inclus 

the screaninq quidar&ca. For collpOUilda which are identif. stack gases but are not nov addresa.t in the screening qui 

the Regions aay want to contact OSW Cor assistance in eval 

thua COIIIPOunds and/or obtaining the relevant physical and ch 

properties data. Also, as the PIC identification quidanc 

disc:Uased i n Section 2, Ellisaion Issues) begins to be iiiPlU 

the R89i ona are encourag.t to inforw osw of the. uqnitut 

frequency at which the various ~s are bainq found in 

q aaes. SUch infonoation will enable osw to evaluate ·with g 

confid- What additional constituents aay n...S to be addres 

future revisions to the 9Uidance. 

Por direct exposures 1 the screen iN analysis should i . all cgn&Siltucnta tor which data are available ( i .... da . qiaaiona and inforution on to.xicolCCJic criteria or benclua 

, 

The ~pril 15, 1994 draft acreaninq quidanc., whi~h ineludaa four 

(&reenic, berylli~~m, lead, and -.reu.ry), will be r evi•ed to in •ck 

additional -ta.la whldl ue en the Pte H at (antt-Gy, b&ci ... , a<Md~&. eh 

nickel, aelenivm, ailv•r , aDd thall l~). 

10 

Fed 24424 

VES 007707 
.. Revised April 22, ~''' 

Given the diverse 10i xture of constituents t o which individua ls ~ay be exposed froiD C:OIDbustion sources, a screening anal ysis s hould 

consider addi tivity of both constit uents and pathways, as discussed 

below in the s ections "COMBINING CONSTIT\1EIITS11 and "COMBI NING 

PAT!IWA'lS" and in the s creeninq quidance. It ill illportant to 

incl ude the siqnificant constituents and pathways in the screening 

analysis in order to retain the conservatiaa ne ce ssary for 

developinq appropriate screeninq estimates. 

thouah it is anticipated that site-specific l and usa dat a 

Wl..li noc qene~cc::L.&..A.r l.k:f. H•c: ... O<- ...... --· --~" -··--.. :..... • • .... .... ... ~-

scr eeni ng guidance does reco1111end that soae site-specific data be 

used. Thill is the case for auc:h of the i nput data required for the 

air disperdon and deposition IIOdel (currently rec:ouendad as 

cotiPDBP) , due to the coeplax i nteractions aiiOIUJ stack related 

paraaeters, terrain, and -taoroloqical conditions. Hare data 

availability should not be an issue: values for stac:lt . paraaeters 

Should be available for any facility seeking a RCRA peraiti actual 

terrain data are readily available for virtually all locations; and 

hourly - teoroloqical data are available for numerous sites around 

the countrY.. 'nle usa of actllal terrain anc1 ..t:eoroloqical data is 

regarded as sta.nc1ard prac:tiC. for tha application of air cliaparsion 

IIOdals for aost air pathway analyses involvin<J the use of lonq-tera 

(e . g. ; annual) average ambient air concentrations. Although the 

effort raquire4 to process thaae data i .s not trivial, standard 

procedures an4 software are available for doing so and are widely 

use4. Sources froa which these data may be obtained are identitiad 

in the acreaninq qui danc:a. 

Tba s creening quidanca also rec..-nds that cartain 

sita-apecitic data be. u .. d for surface water pathways, in 

particular the aizs and 'location ot t;,he watarahe4 or waterbOdy and, t or rivers and straaaa, tha average annual flow. SUch data are 

readily available and should be. usia4; in certain i nstancas, 

howevar, conservative default values are provide4 it naed.ed. 

Fugitive Blliasions and upsets 

Fugitive eaiasiona and upset eaisaions should be included in 

the. screani119 analysis. Although upsets are not genarally expec:t.ed 

to incraase stack ... isaiona by aore than a factor ot two ovar the. 

life of tb8 facility, upset aaiasiona ehould be asti aate4 for the 

particular facility baaa4 on the operating history of the. fao ility 

or sillilar facilities. FUqitive Olisa1ona should ba eatilllated 

baaed on tha typas ot wastes the. fac ility will be burniiiCJ. (Sea 

the discussion of •otnar Elliasion So\ircea• un4er Section 2, 

•z.isaiona Issues•) 

Since fuqitive ... isaiona have characteristics that are 

different troa those ot stack .. isaiona, dispersion ot fugi tive 

eahaions s hould be. aodale4 separately, with the plu.a iapacts 

being added at the recaptor point. A nuaber of dispersion aodals 

· ll 

Fcd 2<4425 

VES 007708 
Revised April 22, 1994 

can be used for t his purpose, i ncluding the FDM and ISC2 mode l s, 

models ~hich are ava i lable on the OAQPS TTN bul leti n boar d. 

Ecoloqical Effects 

Given the EPA •s coaitaant to the protection of ecosyste.u, it 

i s also expected that as part of the screeni ng analysis an 

evaluation should be conducted of the potential tor ecological .,..,~ ,. .. ., .. " .. "'., <!v1:ent t •uud.b \ a . 11\\thouab this issue arises in 

bo't.n acreenJ.nq ana aacaJ.J.ea or sJ. ce - dp8C.&..C.LO as iHih:I Ukiu"" ... , "' ~ •~ 

discussed hare : ) The ecoloqical aaaassaant should include 

i dentifying cri tical eeoloqical resources to be protected tro• 

reduction, deqradatiqn, or loss in quantity, quality or use, 

including critical fish and wildlife habitat and the presence of 

endangered species. Also, the ecological ua-a.ent should include 

an evaluation of whether the iapacta of tba coabuation facility on 

aabiant surface water concentrations of toxic constituents are 

l ikely to c ausa axcaedancea of State water quality standards. 

HIGH ·EHD IHQIVIDUAL £XpQSURE 

If the screening analysis indicates that a acre detailed, 

site-specific risk aaaeaa-nt h n .. d.ad, it Should include a 

d.escri ption zof the biqh and of the d.iatribution of individual 

expoaure(s). Hiqb and exposure(&) are plausible esti .. tea of 

i ndividual expoaura(s) tor those persona at the upper end of the 

diatribution. The intent of tb.i.a descriptor 1a to convey uti.ates 

of exposure in the upper ranqe of the distribution, but to avoid 

estimates which are beyond or above tbe trua distribution. 

conceptually, high end expoaure(s) _.,. 'axposure(a) above the 

90th percentile of the population distribution, but not hiqber tban 

the individual in the population who baa the biqheat exposure. 

The Draft Addendum- describes an approach for eati .. ting the 

distribUtion of exposures across the population in the study area 

tbrouqb a c ollbination of concentration .i.aopletba and inforaation on 

activity patterns (location of ferae, residential areas, ate.). 

This approach provides exposure eatiaate• for population subgroups 

(fu.era, school children, etc.) vi thin each of the iaopletba, and 

these eatiaatea can be c~ined to yield · a general population 

d.i.atribution. Tba hiqh · end individual exposure can then be 

deter.ined )ly aelectinq within the lllloat e.xposed 10 perce.nt of tbe 

diatribUtion., 

This approach · will require that a · substantial amount of 

intonation be collected on locations and activity patterna for the 

Whole population of concern in tbe atudy •area. -An alternative 

approach would be to identify those populatiomo in areas vith 

relatively hiqh concentra.tions and high riak activity patterns and 

define these as the high end of the dhtribution. This alternative 

. 12 

VES 007709 
DRAFT Revised April 22, 1994 

may require some iter ative ana l ysis, particul arly since high r i sk 

activi ty patterns can vary dependi ng on the constituent. Ko~aver, 

this approach could requi re collection of substantially less 

infor111ation. 

once a population of concern has been identified, one can 

either set all exposure para:aaters ..uch u consumption r ates to 

c entral tendency values (if this population is relatively saall) or 

else high end exposures within that population can be eatiaated by 

identifyinq the aost sensitive paraaatera that dater~~ine tba • ~ ... . . ~~~- · -"' -~··'-- •~~ ~.'!lt1H•• ....... "' .... "Y",.. ~,..,. a( these 

to their high end val'ias while leavinCJ a .U oenar paraaeeera at 

their •typical" values. However, cowbinations of paraaater values 

that are hiCJhly unlikely to occur at the saaa. tiae should be 

exclUded. Generally spealtinq, paraaeters that are known to ba 

highly correlated should be varied together. Whether the upper end 

or the lower end of the distribution of the paraaater is. Used 

depends on whether the paraaater has a directly proportional or 

inversely proportional relationship to risk. Sensitivity analysis 

should be perforaad to support the selection of the aost sensitive 

para-terl!' .for the various constituents and pathways. 

In setting the values of the aost sensitive paraaeters tor use 

in estimatinq tne high and a.xposura, i t is ra.c.,_nded that values 

at or above the 90th pa.rcentile ba. usa.d (or, conversely, at or 

balov tha 10th percentile) . It only a relatively f- data points 

are available, the aaxiaua or nur-aaxilaWD value should be used 

(or, conversely, the ainiaua or near-ainiaua value). 

QQMBINING CONSTITUENTS 

Generally speakinCJ, the risks to an individual exposed to a 

aixtu.re of c arcinoqens should be cOIIbi.na.d by ad4inq the 

constituent-specific rislta, . unl .. a aynerqiatic or antagoniati'i 

interactions are known to occur for the specific aixture. 

Rowavar, for syst-ic toxicant., .. tiaatinCJ a baaard index for a 

aillture ia generally appropriate only if th~ conatituenta induce 

the s ... effect by aiailar .odes of action. eaeauae different 

effac:ts occur for the - cbaaical at different dosages, and 

because biocheaicel aechanisllS are infrequently known or 

understoo4, it is suq<Jested that hazard indices fbr aixtu.ra be 

.. tiaated only if, at a ainl.Jiua, the Rtoa of the. individual 

3 Ibid. 

' . "Ttoe Riok Aueo-nt G<.aiclell.neo of 1986•, Office of lleelth and 

bvi.ror.en·tal A••••aaent:, Auq\let 1987. 

S Ibid. · 

13 

Feel 24427 

VES 007710 
components are all based on effects in the sa~e tarqet orqan. 6 It 

should be noted that, since 11any carcinogens also exhibit systemic 

ettects, carcinoqens should be included for consideration vhen 

non-cancer7 individua l risks' from che111ical mixtures are bei ng 

evaluated. 

CQMBINIHG PATHWAYS 

When estimating indi vidual daily doses, exposures from to.£ ...... a.r.,tu: ydCllwor.:. J ...... _,._ _,,.; - - --- • --

(i.e,, oral, der111al, or. inhalttion) i f 

expectation that the same individuals are 

-----· ----- -··~ there i s a re~sonable 

exposed, 

For carcinoqens, exposures can be added acroas direct and 

indirect pathvays if the constituent is a carcinoqen through both 

oral and inhalation r outu. For non-carcinoqans, it is appropriate 

to add oral and i.nhal ation exposures only if there is inf01:1aation 

to indicate that the oral reference dose and the inhalation 

reference concentration are based on the .._ effect. Generally, 

dermal exposures can be COlllbined wi th oral expoauru . 

When cOIIbininq exposures, it is important to cons i der wbethe.r 

U!e same individual h likely to be exposed through each of the 

exposure pathways that are beinq added. 

EXPQSQBE QURATION 

The duration of uposure ahould take into account both the 

expected operational life of the facility and the ti.. period of 

residenc e that is d i scussed in the guidance. Por .any exposure 

pathways, sxposures may continue after the facility has ceased 

oper ations , due to continued cycling of contamination in and 

between biota, soils, and sed.t.ents. Generally speaJt.inq, exposure 

durations should represent lus•than-lifeti .. exposures, unless it 

is reasona))l• to expect that individuals wi ll bti exposed for a 

lifeti... bti-tes of the likely duration of expoaure vie a given 

exposure pathway should be made Wherever poesible. Local censua 

data and, for unusual. situations, liaited aite-specitic IIUrVeys can help establi~ the likely durations of individual exposures. · 

LAMP psi 

The risk aasesn~ent should consider both current land UH and 

ways in which the land surroundinq a c011bustion unit; are reasonably 

6 •Jtitak Aa ... •ent Oui4anc:e for SUperfu.nd Voluae I Haae.o halt.h &Yal uat.ioo 

Manual (Part A)", Office of ~rgency and Aemedi al Reoponoe, Deceeber 1989. 

1 

Ibid. 

14 

f ed24428 . 

VES 007711 
Revised APril 22, ~''4 

likely to be used so that the appropriate exposure pathways, 

potentially exposed populations, exposure paramet.ers, and equations 

can be used to estillate acceptable emission limitations. To 

determine reasonably expected land uses, risk assessors should rely 

on a combination of available information and best professional jud~J~~M~nt. Several factors to be considered tor detenaininq 

reasonably expected land use include: projected land use based on 

recent trends, ohanqes in papulation qrowth and population density 

near the combustion unit, and restricted land uses because of local 

:toninq laws. 

ACCgrTABLE TABGE'f LEVEL 

To ensure protection of buaan health Croa eaiasions ot toxic 

consti tuents, the total incremental risk troa the high-end 

individua\ exposure to c.arcinoqenic conatituenta should not 

exceed 10: . For systemic toxicants, the hazard quotient (e.g., the 

ratio of the t ota l daily oral intake to the reference dose) for the 

constituen; o.r, when appropriate, the aixtura should be laas 

than 0.25. In the case of lead, for which there is no reference 

dose, direct co!llparison with lllec:lia-spacific health based levels is 

suqgestec:l, · attar adjustinq for bacltqround level!; specifically, 

valuu of 100 Dq/kq for soils and 0. 2 ,.g/m for air are 

recOIIIJIIended . (Motel Sea the discussions on •COMBINING CONSTITIJEN'rS• 

and "COMBINING PATHWAYs• tor 11ore specific guidance.) 

The selection Of these leVels ~as opposed to, for ex .. ple, an 

incremental cancer risk level of 10· and a hazard quotient ot 1.0) 

was done in part to account for exposure to backqround levels of 

contaaination (includinq indirect exposures !rOll other combustion 

units) which should be considered as part of the rtalt. aati .. tion 

and deciaion-llAkinq process to set .. ission levels at a coabuation 

unit. 'the ~it will not likely be the only sQIU"ca contributinq to 

exposures in the study area and to na<~lect other anvirorm.ntal 

sources aay ovarestiaate an allowable -isaion laval, leadinq to 

unacceptable total rislt to the pUblic. In this case, backqround is 

defined u those exposures in drinkinq water, too<!, and air 

attributable to sources other than the combustion unit(a) heinq 

aaaassed. 

If deta iled information on· backqround sources is available for 

a particular area, tha penit writer llAY choose to usa this 

intonation to develop an alternative approach for incorporatinq 

baekqround levels • 

• Tbio approach io conoiotent witb the approach taken ·in the Boiler and 

In<lu~rla.l. FII~COI Rule, 56 Pit 7169 ( r.bruary 31, 1991). -er, tile vay in 

which cancer risk 11 e etiaated in thi.• 9'lid.arw:e cU.ffece froe the IIF rule to lliOre 

clooely toll- Aqency 911i<l&nce. ror u-le, in tbe liP ruie carc~nic -tale 

and 0r91Aic: CCdpOuftds are not •99re9atad, Group A and. • earcinoqen.• a.ra :tOt 

aqqregated with Gro~p c carctn~ne, and a hypotbetical KBI i e ••t1a&ted. 

15 

VES 007712 
I 

I 

Revised April 22, 1t'4 

The re.sui ts of any risk assessment which is 

conducted pursuant to this quidance do not 

replace the requirements of tbe BIF rules at 

40 CFR Part 266 Subpart H. Therefore, 

allowable levels ot metals emissions that are 

derived from a risk assessment conducted 

pursuant to this qui4anca should be caapared · - ......... _ .. ..~~ ........ -"~~ .. . ~ ..... -'~- ........... 13 ... '0 _,, 0 _..., ........ 0 

aore stringent levels should be used to .. t&))lisb the parait liaita. Rovevar, tor 

incinerators, allowable levels that are 

derived troa a risk asse••-nt conducted 

purwant to this quic1anee should be used to . establish the permit liaits, as applied under 

omnibus authority. 

16 

vEs oon13 
A TI ACRMENT 2 

Adden<hun I· Risls ~lc <lllling and Risk Managemeur Recommeudatjons for: 

Veolja ES I ecbnical Solutious. L.kC. 

VES 007714 
Document 177 

Addendum/Risk Screening and Risk 

Management Recommendations for: Veolia 

ES Technical Solutions, L.L.C., Sauget, 

illinois - Explanation of Mercury Speciation, 

Dispersion and Methylation - w/CD 

attachment 

Fec1 24457 

VES 007715 
UNITKDSfATESENVIRONMENTALPROTECTIONAGENCY 

REGION S 

77 WEST JACKSON BOULEVARD 

CHICAGO, 1L 60604-3590 

ADDENDUM 

Risk Screftling and Risk Mana~:cment R""ommendations for: 

Veolia ES Tecbnic:al Solutions, L.L.C. 

Sauget, Ollnois 

(Formerly: "Onyx Environmental Services") 

Explanation of Mercury Speclatio.n, Dispersion and Methylation 

Novembu 2007 

Prepared By: 

Cbristopber Lambesis, Environmental Scientist 

Todd Ramaly, Environmental Scientist 

Mario Mangl.oo, Toxicologist 

U.S. EPA · Region 5 

Land and Cbelllicals Division 

77 W. Jackson &ulevard 

Chicago, Jllloois 60604 

VES 007716 
Addendum 

Risk Scn'lening and Risk Management Recommendalioos ror: 

Veolia ES Technical Solutions, J...L.C. 

Sauget, Hlinois 

1. Background 

The "Risk Screening and Risk Management Recommendations for Veolia ES Technical 

Solutions, L.L.C., Sauget, Dlinois," dated May 2007, (the "Veolia Risk Report") 

evaluated whether compliance by the Veolia facility with the emis~ion standards for 

cemrin hazardous constituents established by 40 C.F.R. Part 63, Subpan EEE (the 

"Hazardous W uste Combustion-Maximum Achievable Control Technology Rule" or 

"HWC-MACT Rule") alone would be protective of human health. The Veolia Risk 

Report calculated the expected emissions of various hazardous constituents, including 

mercury, at the HWC-MACT Rule emission,s standards for each incinerator stack at U1e 

Veolia facility. U.S. EPA conducted air dispersion and deposition modeling of these 

expected emissions from the Veolia facility (sec Dispersion MO<h/ing of Incinerator 

Stack at Ony.c Enviromnental Servicu, dated June 15. 2006), Finally, U.S. EPA assessed 

the human health risks resulting from the modeled deposition of h81.ardous constituents 

from the Veolia facility. In conducting the site specific risk assessment for the Veolia 

Risk Report, USEP A followed the Final Human HtaW. Risk A.sstssmenJ Protocol for 

HtWJrdous Waste Combustion Facilities, EPA 520-R-05..006, September 2005 

("HHRAP" or "risk assessment model"). 

Mercury deposition and runoff to water bodies results in the conversion of inorganic 

mercury tO methylmercury within the water column. Methylmercury is of concern 

because it has a high potential for bioaccumulation and bioconcentntion into aquatic 

species including fish. In other words, the emission and deposition of inorganic mercury 

may n:l<Ult in human exposure to methyl mercury through tbe food chain, i.e., fish. There 

is some indication of the potential for both recreational and subsistence fishing at the 

Frank Holten State Park lakes that are neas the Veolia facility. Because of these site 

specific factors, the \1eolia Risk Report considered the health risks posed by the 

conversion of inorganic mercury emitted by the Veolia facility into methyl mercury. 

Table 2 of the Veolia Risk Report provides tbe estimated the cancer risk and haz:lrd 

quotients for various constituents including methyl mercury. The Veolia Risk Repon 

concluded that emissions of mercury from the Veolla facility at the HWC-MAC! Rule 

emissions standard would result in potential cxposwe to methyl mercury above U.S. 

EPA's risk management guidelines. Therefore, the Veolia Risk Report recommended 

tbat total annual &ack emissions of mercury from the Veolia facility be limited to protect 

human health. 

ed 2448~ 

VES 007717 
This Addendum explains how U.S. EPA calculated the conversion of expected emissions 

of inorganic mercury from the Veolia incinerator stacks to methylmercury for purposes of 

assessing potenrial human bultb risks in the. Vcolia Risk Report. 

11. Speciation a.nd Dispenl011 of Mertury Rhllssions 

As described in the dispersion modeling repo11, emissions from Veolia's stacks were 

modeled as "unit" emissions wherein enrission rates of the various phases (vapor, 

particulate, and panicle-bound) are set to 1.0 gram per second. This methodology allows 

the modeler to use one set of modeling runs and scale the results by multiplying them by 

the actual or tested emission rate. After entering tile constituent-specific emi55ion rate. 

the risk assessment model (Finm Human lltollh RWc A.<stssmont Prot()(;O/for Haumlous 

\Vrute Combustion FaciliJies, EPA SlO-R·OS-006. Sep<ember 100S) furthec partitions the 

emissions to one or more of lhe phase-specific dispersion results. For example, an 

extremely volatile chemical may lu\Ve the majority or its mass emitted assigned to the 

dispersion results or the modeled vapor phase. Similarly, a non-volatile pollutant like a 

heavy metal may be largely assigned to lhe dispenioo teSults from tile particle pbase. 

These are important distinctions as the specific phases disperse and deposit on the 

surrounding area di.fferendy. 

Mercury can be emined not only in different phases (vapor and particlo-Oound) but in 

different species that also effect bow mercury is dispersed and deposited. The primary 

species of concern are elemental mercury and divalent mercury. In March 2005, the 

Veolia facility conducted a &tack test on only Stack 4 in order to measure the proportions 

of the various species and phases. U.S. EPA used the results of the Stack 4 test results 

for eacb incinerator stack in the risk assessment model in order to apportion the mercury 

emissions among the vari()IJ3 phases and species. 

The risk assessment model also accounts for the concept of "loss to global cycle" where 

some of the mercury is assumed to leave the study area without depositing. n.e fraction 

of a pollutant that remains in the vapor phase in the swrounding area is identified in the 

risk assessment model as F •. This parameter tells the model how to panltion the pollutant 

between the various phases. Since the "loss to global cycle" asswnptions ultimately 

effect bow the mercury species deposit, F. must be individually calculated for the species 

of merquy and entered into the model. The following diagram shows the speciation of 

mercury from tbe suck test and the estimates for factoring "loss to global cycle" into the 

emission rates. The diagram also shows how F. is calculated for both elemental and 

divalent mercury. Divalent meri:ury is modeled as mercuric chloride. Tbe risk 

assessment model combines all of these foctors to scale the results from the dispersion 

modeling and deposition results to site-specific air concentrations and deposition nuxes 

for tbe different species and phases of mercury. The risk assessment model used these 

scaled mercury concentrations as the source for further fate and transport modeling of 

mercury through the environment 

2 

VES 007718 
I 

f 

~~ 

I ~ .. 

~~' r 

! f '1! • I ! .. ·s 

:l ~ ~ .. 

· .9 

. I i I . 3 ! & i '!; • . ' 

j a f l ' I I i 4 ~ 

r I 

! ll f ) j i 5 r l I : I i I 

.I 

I l J 

I 1 f 

t f I J I 

• ~ I I I 1 r 1 ~ l J :& • 

~~ t~ 

I ti h l u It 

'W J:l. ti 

;: 

I 

I! 

Cj> 

~ 

..... 

..... 

0 

0 

Ul 

w 

> 
Ill. Mercury Fate, Transport and Methylation for the Ve<>lla Risk Report 

The following description of mercury dispers•on and methylation is taken from the 

HHRAP and U.S. EPA's Mercury Srudy Report ro Congress, EPA-452JR.97-003, 

December 1997 ("Mercury Report to Congress"). 

A. Fate and TNinsport of Mercury l.n the Environment 

The movement and diSlribution of mercury in lhe environment can be confidently 

described only in general terms. There has been increasing consensus on many. but not 

all, of the detailed behaviors of mercury in the environment. The depiction of the mercury 

cycle in Figure 2--2 (from the Mercury Study Repon to Congress) illusmues the major 

transfer and transformation processes eApected to occur. These processes include a 

number of infinite and/or indefinite loops. 

Mercury cycling and panitioning in the environment arc complex. phenomena that depend 

on numerous environmental parameten. The following points generally descnlle the key 

factors that affect the fate and transport of mercury in the environmenL 

• The fonn of mercury in air affects ·both the rate and mechanism by which it . 

deposits to earth. 

• Wet deposition apparently is the primary mechanism for transporting mercury 

from the atmosphere to surface waters and land. 

• Once in aquatic systems, mercury can exist in dissolved or paniculate forms and 

can undergo a number of chemical transformations (see Figure 2·2). 

• Conwninated sediments at the bonom of surface w81ers can serve as an imponant 

mercury ~rvoir, with ~ment.OOund mercury recycling back into tbe aquitic 

eoosystem for decades or longer. 

• Mercury has a long retention time in soils. M a result, mcn:ury that bas 

accumulated in soils may continue to be released to surface waters and other 

media for long periods of time, possibly hundreds of years. 

Fed 24462 

VES 007720 
B. Mercury Methylation and BloatcuRIUiatlon 

Methylation of mercury is a key step in the entrance of mercury into food chains. The 

biotransformation of inorganic mercury species to methylated organic species in water 

bodies can occur in the sediment and the water column. Nearly 100% of the mercury that 

bioaccwnulates in 6sh tissue is methylated. 

Methylmercury production and IICCUlllulation in the freshwater ecosystem is an efficient 

process for accumulating mercury which can then be ingested by f'Uh~ting (piscivores) 

birds, animals and people. In addition, methylmercury generally comprises a relatively 

greater percentage of tbe total mercury conteotat higher trophic levels. Accordingly. 

mercury exposure and accumulation is of particular concern for animals at the highest 

trophic levels in aquatic food webs and for animals and humans that feed on these 

organisms. 

1. Cak:ulatlng Mercury Concentrations in Sudau Water and 

ScdlmeoiS · 

HHRAP suggests these mechanisms in determining mercury loading of the water 

column: 

• Direct deposition, 

• Runoff from impervious surfaces within the watu shcd, 

• Runoff from pervtous surfaces within the watershed, 

·• Soil erosion over the Iota! watershed. 

VES 007721 
• Direct diffusion of vapor phase mercury into the surface water, and 

• Internal transformation of compounds chemically or biologically. 

The total concentration of mercury is partitioned between the sediment and the water 

column. The llHRAP uses the Univennl Soil Loss Equation (USLE) and a sediment 

delivery ratio to estimate the rate of soil erosion from the watershed. The equations 

recommended for estimating surface water concentrations include u sediment mass 

balance, in which the amount of sediment assumed to be buried and lost from the water 

body is equal 10 the difference between the amount of soil introduced to the water body 

by erosion and the amount of suspended Solids lost in downstream Row. As a result, it is 

assumed that sediments do not accumulate in the water body over time, and equilibrium 

is maintained between the surficial layer of sediments and the water column. The total 

water column mercury concentration is the sum of the mercury conceouation dissolved in 

water and the mercury concentration associiued with suspended solids. 

For the Veolia Risk Report. U.S. EPA used a computer software (!RAP~ that follows 

tbis methodology in calculating mercury concentrations in the water column. A copy of 

the IRAPTM archive fo.- the Veolia Risk Report is attached in a compact dis k. See 

Addendum Appendix A , TRAPTM Archive. . 

1.. Melbylatloo of Mercury 

The net mercury methylation rate (the net result of meth)llation and demethylation) for 

most soils appears to be quite low; witli much of the measured methylmercury in soils 

pocentially resulting from wet deposition. Based on the information in Mercury Report 10 

Congress, U.S. EPA assumes that98 percent of the deposited mercury remains divalent 

mercury, and two percent spcciates to organic mercury (methylmercury) in soil·. 

Both watmhed erosion and dire<:t atmospheric deposition can be impo.-tant sources of 

mercury to a water body. In the absence of site-specifiC measuJ'CIIlCtliS to support 

evaluation of water body properties and biotic conditions relevant to mercury 

methylation, HHRAP generajly recommends assuming that 8S perceot of total mercury in 

surface watec is divalent mercury, and the remaining mass is metbyl=ury. 

Specifically, HHRAP recommends tbat a dissolved water concentration first be 

calculated for towl mercury using the fate and transport parameters specified for mercuric 

chloride. Then, the dissolVed total mercury concentration sbould be apportioned based on 

an 85 perce111 divalent and IS percent methylmercury speciation split in the water body. 

HHRAP's Appendix B (Table B;<l-24) presents the equations recommended for applying 

the speciation assumptions. The risk assessment software used by U.S. EPA for the 

Veolia Risk Report utilizes these equations consistent with the HHRAP. 

3. Blaccumulation of MeO!ylmer cury In Fish 

After metllylmercury is formed in the aquatic environment, the most significant concern 

for human health risk is uptake and bioaccumulation in fish. Bioaccumulation is the term 

Fed2.4464 

VES 007722 
which refers to the finding that the concencration of mercury (iu the fonn of 

methylmercury) in the aquatic enviwnment increases tiS mercury moves up the food 

chain. 

For rneth l~ ry . U.S. EPA guidance recommends lhatthe conctntration in fish should 

be calculated using a methylmercury-specific Bioaceumulation Factor (BAF). The BAF 

is the ratio of the contaminant concentration in fish tissue tO lhe contaminant 

concentration in the wateibody where the fish an: exposed 10 the contaminant The BAF 

accounts for upcak.e of concaminants into fish by a combination of several different 

mechanisms including water passing across the gills and consumption of sediments and 

dieW"y foods which could include plankton, daphnids, and other fish. 

BAP values are based on dissolved wattr concentrations. U.S. EPA guidance 

recommends the following equation to calculate fish concentrations for chemicals which 

bioaccumulate including methylmercury (HHRAP): 

CmJ, = Cctw x BAFr"" 

Where 

Cn.> 

c • ., BAF""' 

= 

" 

" 

Concentration of methylmeroury in fish (mglkg tissue) 

Dissolved phase water concentration (eng/Liter) 

Bioaccumulation faaor fOf' rnelbylmercliry (Uterlkg) 

The dissolved phase water concentration (Ct.) is calculated as described above (Section 

B.2.). The recommended methylmercury BAPr,.., value and the BAF value used in the 

Veolia Risk. Report is 6.8E-+06 (llliRAP Chemdat Database). 

That BAF value is based on the !l""llletric mean from measured BAF values oblained 

from a number of aclual fieklstudiC$ of mcn:ury bioaocurnulation eoo<lucled at U.S. and 

Canadian lakes (Mercury Study Report). This value is considered to be appropriace for 

evaluating methylmercury uptake at olher lak.C3 and also accounts Cor uptake into fish at a 

high crophic level (i.e., trophlc level 4 - fish at the highest end of the food chain). The 

available information indicates that the lakes at Frank Holten State Pari: contain fish at 

lrophic level 4. 

4. Flsb Consumption Rate 

During the 2003 public cornrnenl period, the public raised the concern that U.S. EPA had 

not ~onsidered subsistence fishing at the Prank Holten Stale Park lak.ea. 1n addition, 

reports of subsistence fishing were provided to U.S. EPA. Visits to the lake's by U.S. EPA 

indicated the potential for recreational and subsistence fishing there. Frank. Hollen State 

Park. lakes have naiUrally occurring fish and aie slock.cd annually with game fish. In 

addiliorc. U.S. EPA has concluded ll>at the area surrounding the Veolia facility is a 

potential environmental juslice community. For these reasons, U.S. EPA used Adult and 

Child Fisher exposure scenarios recommended by l:D1RAP for assessing potencial risks 

posed by methylmercury in fish. 

VES 007723 
Tile risk. assessment computer sortwar~ used by U.S. EPA . .!RAP"", used the default 

consumption rates in Appendix C, Table C-1-4 of the HHRAP, which are derived from 

the 1987-1 988 USDA National Food Consumption Survey. Table C l-4 of the HHRAP. 

Appendi" C, states that these default consumption rates may be used to assess eJ<posure 

to contaminants in foods grown, raised, or caught at a specific site. lt is imponant to note 

that these defaull consumption rates ore not intended to specifically repres~nt subsistence 

fishers or other high-¢nd consumers of home-caught fish. Tile default consumption rates 

are derived from data that repre=tlhe average amount of fish eaten by people who fish 

in a local water body and eat at least some of the fish they catch. Since there is no 

reliable sire-specific information available about the amount of ftsh consumed from 

Frnnlc Holten State Park lakes, the Veolia Rislc Report ulled the recommended default 

consumption rate values shown in the HHRAP. These consumption rates convert to 87.5 

grams per day for an Adult Fisher and 13.2 grams per day for a Child Fisher. These are 

the values used in the calculations below. 

S. Cal~"Uiation of Methymm:ury Hazards 

U.S. EPA c\llculated the hazard quotients for methylmercury appearing in Table 2 of the 

Veolia Risk Report at:<lording the following equations: 

Calculation of mctttlymercury concentration in fish 

Where. 

Clbll; Coneentnllion of methylmercury in fish (mglkg FW tissue) 

C..., = Methylmcrcury_dissolved phase water concentration (mgiL) 

BAFr .. = Bioaecu.mulation factOr for methylmctcllr)' in fish (Ukg FW tissue) 

Calculation of Ayqage Dajly Dose of Methy!mercurv from Fish 

ADD = (Cr.,. x CRiblo x EF x ED) I (BW x AT x 365days/year x 1000 glkg) 

Where, 

ADD= Average Daily Dose -the amount of methylmercury at the exchange boundary 

(mglkg/day) 

Cs,n = methylmercury coocentrarion in fish (mglkg) 

CR,.,.. = Consumption rate- the amount of contaminated fish consumed per day (g/day) 

EF =Exposure Frequency (days/year) 

BD =Exposure Duration (30 years) 

BW = Average Body Weight of the Recepcor over the &posure Period (kg) 

AT= Averaging Time (30 years) 

Fed24466 

VES 007724 
Calculation of Methylmercury Ha?.ard Quotient 

HQ = ADO/RID 

Where. 

HQ= Hazard Quotient (unitless) 

ADO = Average Daily Dose (mglkg-day} 

RID= Reference Dose (mglkg-day) 

'Calculation of Adult Fisher Scenario Total Hazard Quotient' 

Where, 

Stack 2 C.,.= 6.16£-9 mg/1..1 

Stack 3 Cct. = 6.09B-9 rog/L 

Stack 4 C. .. = I .52E-8 mgiL 

BAF,... = 6,800,000 l.lkg 

Stack 2 Cr .. = 0.0419 mglk.g 

Stack 3 cfi., = 0.0414 mglkg 

Stack4 Cr., = 0.103 mglkg 

And, 

ADD = (Cr•• X CRr,,h X BP x ED ) I (BW x AT x 365dayslyear x 1000 glkg) 

Where. 

CR&~~ o 87.5 rfday (from Hl-lRAP} 

EF = 350 days/year (from HHRAP) 

liD= 30 years (from HHRAP) 

BW = 70 kg (from HHRAP) 

AT= 30 years (from HHRAP) 

Stack 2 ADD = 0.000050 mglkg-day 

1 The wlues used llete have been rowxlcd for ~vioy. Th<rtfore, ohcse calculation• differ sligbtly from 

those in Tab!• 2 of the Veolia Risk Rqxxt due 10 this round in&- . 2 The specifoc •aloos for the coolribW!J1c """""""tion of methylmercury for eaeh stack In Ibis calculation arc oalcon frnln I he IRAP"' run &eneratod for ohe Voolia Risk Repon. See Addendum AppcadiJt 8 . Rq>rim 

of Select !RAP"' Repor!S, Media Concentrations. 

vEs oon2s 
Stack 3 ADD = 0.000050 rnglkg-day 

Staek 4 ADD= 0.000123 mg/kg-day 

Therefore, 

HQ =ADD/RID 

Where, 

RfD = 0.0001 mg/kg-day 

Stack 2 HQ = O.SO 

Stack 3 HQ = 0.50 

Stack 4 HQ = 1.23 

Total Adult Fisher melllylmercury HQ = 2.23 

Calculation of Cbj!d Fish« Scenario I ota] Haran! Ouotieof 

Cr.,. = C.,. x AFn~ 

Where, 

Stack 2 C.,.= 6.16"&-9 mg/L • 

Stack 3 Cow= 6.09E-9 mg/L 

Staek 4 c.,.= 1.52E-8 mg/L 

BAF,.. = 6,800,000 IJkg 

Stack 2 Cn.. = 0.0419 mg/kg 

Stack 3 Cn.., = 0.0414 mglkg 

Stack 4 Cn,. = 0.103 mg/kg 

And, 

ADO = (Cilsh x CR,... x BPx ED )/ (8WxATx365dayslyearx JOOOg/kg) 

Where, 

CR101o = 13.2 g/day (from HHRAP) 

EF = 350 days/year (from HFIRAP) 

ED= 6 years (from HHRAP) 

.BW = 15 kg(from HHRAP) 

AT= 6 yciii'S (from HHRAP) 

' The •·alu<s u!ed hue bave been roun<led f0< brevity. Thetef ~ lhese calculations di!Ter slightly from 

lboae in Tobie Z of the Veolia Risk Report due !0 thisi"OIIl1dinc. . 4 The specific values for the contributing concenualioo of melhylmeteury for cadi. staCk in this ca.kulation 

as< taka! fiom the IRAP"' run~ for !be Vcolia Ri•k Repon. See Addeodwn Appendix 8, Reprint 

· of SelectlRAP"" Rq>orts, Media Coooentn.tlons. 

VES 007726 
Stack 2 ADD = 0.000035 mglkg-day 

Stack 3 ADD = 0.000035 mglkg-dliy 

Stack 4 ADD-= 0.000087 mglkg-day 

Therefore. 

HQ =ADD/RID 

Where, 

RID = 0.0001 mg,lkg-day 

Stack2 HQ =0.35 

Stack 3 HQ = 0.35 

Stack 4 HQ = 0.87 

Total Child Fisher me~hylroercUTy HQ = 1.57 

VES 007727 
Addendum Appendix A 

IRAPTM Archive 

{See attached CD Rom) 

Fed 24470 

VES 007728 
Addendum Appendix B 

· TM Reprint of Select IRAP Reports 

Fed 24471 

VES 007729 
RISK8YCOPC Dal• : 1012612007 

Reaphtr ftsber_cbild S'TACKl Merwcy O.OOOOEtGOO 8.7099E.-

Rc:upiDr Hfttr .. cbitd STACKl McthyJ mercury o.ooooe+ooo ).5693£.001 

RcetpiOI' nsher _c.h.ild STACKl TW>CDO. lJ.7 ,8- 1.7S24E-008 1.9078E.()O) 

TOll! S.S656E-007 4.24388.()01 

R«tp:tor Dsber_c,hitd STACK3 Ar.;e.nK 2.9146.E-007 1.1 OSSE.OOZ 

JteuptOf' fishr _child STACKJ BayDnarn l.9806E-008 9 .S794E .(103 

Ru<p ... fuhtr _ c:'ild 'STACK3 Cadmil.lm S.58li1Jl.008 1.811 2£-002 

RtttPfOt' fbller ild STACJ(J Chromium, bc:~vJkoot 1.4903!-007 1.6090Jl.003 

RenptDt lblcr_<IIIN STACKJ L<od O.OOOOEtGOO O.GOOOE+OOO 

Rec:tPtor Other- ohlld STACIO Mcnu'ic chloride 0.0000£+-()00 2.3479E.OOZ 

RtetptOf' ftl•er_c.•u• STACJ(J Mcra.y O.OOOOS+CIOO 8.4071E-001 

1Unp1ot 

_ _ child 

STACIO Methyl -"''l' 0.00002+000 3.3llSB-OOI 

Rettptor ns;er_c.J)d STI\CIO TeuaCDO, 2,3,7,8- I. 71 :lSll-008 1.8654£..003 

Tctal 5.4)328-007 4.1795£-001 

ltcctptof' fldtcr _clild S'I'ACK4 Anenic 6.3J08E-008 2.8086E.()C)) 

Rtupftr lbh.-_dllld STACIC4 8<rylll10n U)048E.oot 2A906E-OOJ 

lleapter AW.J WI<l STACK4 :drnium 1.87998·008 6.0923£-00) 

Rtuplor n ..... _.,lid STI\CK4 omi~, hQavaJent S.Ol42E-008 4-'113 ll-004 

Rmptw llolo..-_diUd ST4CK4 .-1 O.()()OOE-!OOO O.OOOOB+OOIJ 

RtcfPtor flJku_ckiW sTACK4 Mercuric chbidc O.OOOOS+CIOO 7.0444E-003 

kettpttt 1\Sfltr ~ild STACK4 Mem.y O.liOOOEtOOO 2.601SE-OOI 

Rtap~.,. fiN!er_eWW STACX4 Mdhyl "''"""'Y 0,00001;+000 8.7202B-QOI 

Rt"Ptot li:dier_caRd STACK4 TtnC.OD, 2,3,7,&· S.J284B-Q09 5-'liiE-ooc 

T01al L• 75.lll-007 s.9187e-ool 

.- --~ ... ·-·-- --------

Fod 24<472 

VES 007730 
CUMUlA TtVE RISK BY COPe DOle: 1012612007 

-· ~. r.·.-.- r·;:r:>t-: lf.L.t- IHJ ~~., i-•: _,., :,' t~-J:.:,I .. r. ChJU I'!:~I 

R-• (itbcr _adult Anenlc 1.6676e-006 1.6119£.002 

Rooep10r Jilbu_adult B«y!lklm J.S 199B-007 IISJSE-002 

Rcc.optor fithcr_a4:ult Cadmiurn 6.5908E-007 4.2718£..00'2 

~ fbbtr _ adull a..omium.~ 1.7599£-<106 l9.SOSE-003 

\{cccptor l'ither_tduh !Aad 0.0000£+1)00 0.0000£+000 

~· ft:Sber_adu11 Mc:mlric: da)oOc5c 0.0000£+/)()0 20312&002 

RCClC'J)(Of Cl.sbcr:JH.Iult Mercury 0.00005+000 1.9725E·007 

R- ,...,.. __ M~lmmu:y 0.0000£->000 Ul39f+OOO · 

Receptor filhcr_aduh TeaaCDD, 2,3,7.8· 8.8112£.008 I.?Mil£·003 

Toul 4.Sl67E.Q06 1.)420E,.OOO 

Rctepeor fblhu .. cbUd Arsenic 6.Sl22E-007 2.5197£.002 

Recqno• filher_c:M&d Beryllium 7.0J97E.(IOI 2 228.6£.002 

Rcc;:cpeor fls.her_cl\\ld Cadmiut» 1.3182E.007 4.2718Jl.002 

Rceepeor lb.bcr-_ chUd Chromium, hcxavaJent J.SI99f-007 3,7149E·003 

ReCII!p;tor filhtr_ehiJd wd 0.00005+000 O.OOOOE+Ooo 

lte«pklr r...,.._cllild Mereuric cblorlclo O,OOOOE+OOO S.4760E-oo2 

Rccq>Co. fisher_cbUd Mercwy O.OOOOE<-()00 1.97lS2.007 

ReceptOr ftiM• _dlllcl ~l«bylmemny 0.00001!..000 I.S812B+OOO 

R- fi<tr _child TcmCDD, 2,3,7-'" l.9917E.{]()8 4.3271£.003 

Toe• I 1.2474E-006 1.7J42E+OOO 

_...__ _________ ~-··-------------- -- ·-·-~·------ ------ ... -----.. ~·..-..·· ·--.... -- ·· · ...... -.... -... ... IRANIV- fed 2"47J 

VES 007731 
FISH CON CENTRA l iONS Date : 10126/2007 

,~-.. ,. . ,, ,. ,,,... ,,. 

' ·.I,' ·' '. ,._, .. , '· "' ~' ,.;,, ... -.... 

, •• ~~1''·.·~ •;: .. : ·= ·-; ~-;.··!"· ·-· -:r 1. :.:'~' ·r• -~··.. . . •. • ;r-J·' : .. ·. ~·-·-•' 

Reetptor nshcr_ll<luto STACK2 AIKnio 3.3J21E·OO? 3.359SE·007 

R=o<ot naher_aduh STACK2 Buynlutr. l . 7071S.oot 4.ll08E.007 

' R""'!'!O< n""'-"'1111 STACK2 ~imn .2352&~ 1.2&41l:,..(JO$ R- flth«- ad~! I STACK2 Cbromilm'l. be.x•,•alc:nt 4.2.1208-008 4.260SE.008 

,ReceptOr nili<T_adull STACK2 Lood 5.3509B.009 6.2611E-009 

R.eeqnor fillher_Olduh STACKl ercuri~ chloride O.OOOOB•CIOO O.OCIOOtl.OOO 

l!c«ptt< r.-_odulo STACKl Mcdlyt mercury l.S59ll!-002 4. t92S E-00:! 

R=o<ot (iJha-_adll.ll STACK2 . T.U.C00,1.3.7,8- &.47252..01 J t.Ol3te~IO 

Re«JKO< Osber.m.lt STACKJ ArteU:Ic 3.2330 007 3.2lS8E·001 

Receptor littter a~.-1 STACKJ BeryUium 3.6181E-00? 4.l264E.Q07 

lto<opOO< fistler _..rut1 STAOO Cadmiun t.20S4£..00S I .:U62£.00S 

l!c«ptt< ru~~et _ dalt STAOO Clwomium. ht;u\<tknc .... 1202S.-008 4. U79£..0()1 

R.eupcor rilhe.-_aduh STACKJ ...... S.Zl46E-009 6. t 2SOE.009 

ltcceptor fit:ber_aduh STACKJ Mucurit chloride 0.00006<000 OJlOOOEtOOO 

Reeepoor fiaher _ tduh STAOO Mtlhyt mtm><y 3.Stll~~02 4. 1l82E·OOO 

.. -- -- ... --,-....... .. ---------·-----------·----·--..... -.... , 

IRAP-h VIew --·-~·- "'- · -- -·---··--.. ...,,,, __ ,_,,..v--•-

F~; ;r-~~ · 

VES 007732 
FISII CONCEI(TAAllONS Oa!& : 10126/2007 

.,.;. '' l' .. o ·' ' ',1,. ' • r: 

.. "' i'. '' '·''" • .r-,,,. ,., 1?'-r:O·'' t•i', !;';f :_,i __ f.-IJ/,1<: ':) ::;r:u;· (_ :": •·•r." T C'•-·1 '!II·'· ' •-<>t;<!'<:·'<~>'f•'' •· ·' 

R.tuptor f\$her_uduh STACKl TetraCOO, 2.3,7,3· S.234lPA11 \.0121B-010 

Receptor fisher_ ldtlJt STACK< Atsenic 7.81362-007 7.9244E·001 

Re<q!Jor fi~r •du t STACK4 BctyUNm 8.7«1E-007 I.Olll £·006 

~ fisMr_ad:'ilh STACK4 Cedn:lioln 1.91<0£.00l l0l94E OOS 

~ fisb«_adoh STACK4 Owomium, bc.av.ablc MSIOC-006 l.oo<9£.0o7 

~ .. tiWr __ STACKA L<td 1.161)£.00& l.-t171E.OOS 

~ r-_ .. !ull STACK< ).tcn:wic C'hlorido 0.00001!>000 0.00001!.000 

llecq)Cor ftsbu- adull STACK< Mcdtyl mcn::ury 8.76501!.(102 l.Olllll-001 

Rcotptor fisber_adull STACK< TellaCOO,l,3,7.11- 1.9841 1J.OIO 2.42l9J!.Ol0 

.Receptor fi&hc:r_c:IUld STACKl Anctrk. ).31281!-007 3.35981!.007 

Receptor tilhcr_ehiJd STACKl Beryllium l .7077E.007 <.llOgE-001 

Ro<op\Of fishet_dlild STACIQ Codmium l.llllE-005 1.2841E.005 

II«- . fnh«_cbUd STACKl Chroo1lNm, h ....... 42120&001 4.2605Jl.OOS 

llecq)Cor _ _ cllild STACKl L<td S.Jm£.009 6.2611£.009 

~ &.Iocr-<!Old STACKl Me=rio ehlorido o.OOOOE.OOO O.OOOOE<OOO 

--··-----· ..·--· .. ·----·--· IRAP-hVIIB'W · Pegs 2 ' Fed 244 7~ 

VES 007733 
FISH CONCENTRATIONS Oate : 1 012UZ001 

" -.. oe'1-_i t'-< ,>•J: .::. " 

~' I · 't•o > • ,•l ,. ,·,t, ,;,.,,._,.,,,,,i't >!"! 

t:l' • :-·l.;,~: '.I• :l I.',/',<.',(! :,; ' , ~·· \.1~1 ·· ·! ··• . ••· l 'i·,' ! "·" ''" ( :11" •'-'1 fo !o--: •• c 

P.ccc:~ Osher_child STACI<2 Me!byl mercury 3.SS9)E.002 4.192!C·002 

R.eoeptor (llh~ ~hi1d STACK2 TetraCOD, 2-,3,1,1· 1.472SEAlll I.OlSIE.OlO 

._ llsk>_duld STACKJ ........ l2JJOe.oo"l 3.11SIE.oo7 

._ rw~ chiltt STM:KJ B.,..liwn 3.61 3)~ 4.2l64£.007 

.. _ fit.hu_cbitd STACKl Cadmiwn 1.2084£.00! 1.2lf>2C·OO! 

RcccplOf fisht<_dUid STACK3 Owomium. hexavaknc. 4,1202E·003 4.1S79E·008 

.. _ fisllcr- drlld STACI<J L<od !.23<16£.009 6.12!0£.009 

.. _ r __ chUd 

STACIO Mueuric ehloriclo O.OOOOE«<Xl 0.0000£<000 

1\<ccpiOr fisher ... d\ild STACK3 Mctl>yl mercury ).Sill£.()02 4.1312E·007 

.......... n~~>cr_d\lld STIICKl Te•aa>o, 2,3,7,8- 8.284)£.01 t l.0 21f~ IO 

Rcc<p<or lbhcr _ eblld STACK4 Amok 7.8 t 36£.oo1 9l44~ R- foollct-drlld STACK4 lla)•Uium 8.744n;wl 1.011 !J;.()06 

R""P'« llll>er_ehild STACK4 CadmNm 2.9140£.00S 3.0294£.00! 

kt¢eJMor fither_cbi1\l S1'ACK4 CNornillm, tli.O.v cni 9.9!806·008 1.00.19&007 

ll.=p.,r tr..:Mr- c:tu1d STACK4 Load 1.1623&008 1.4171E.008 

,. 

- --- -~-- -- -- -- .... -~ ..... -·- IIW'-h \/low Fed2<4/l0Y0 J 

VES 007734 
10 

.., 

.... 

.... 

0 

0 

II) 

w ... v > 

8 , .. )ii 

f:! 

5! 

.. 

·

~ "' !l 

.. ~ ! "' 0 

~ ~ ' "' • 

~ ::1 !S I 

5 • 

~ 

i .... 

r 3 I 

1i 

~ I i f 

)! ::i ~ 

~ • • 

u lj ~ ~ ~ ..: 

.. :!! ;g :<\ 

ii, 1i 11 

! 

., · 

!' .. "' z 

i 

0 

~ ~ ~ 

• f 0 

i ! .. 0: i 
·. Mm1A CON CENTRA TIOHS Oote : 10/26/2007 

1~\'lli \C; t _l ~o. rt.•ll+•'i!.. \' lf.- (H•t..\' 

·•,: -, ·.( -~·~··_:•r ,.,t.. ;~c ;rJc 

·~- '~ .:· -, __ , ···~•.Jr ' '.-'-.1 •• · "; ~,_,. "7' 

~ r.-_odl;n STACtO ....., .. I.UJ9E-002 I 656fE.OOS 1.214 &002 1.61!1'1&0011 

Rccq>tor r~ .ct .. tt STACKJ &lyUii.UD 9.6240E-002 5.91016-009 1. 7162E.()O I 6.9UJE-009 

Rc:oq'l1or IW>« _ tdolt STACKl Cadmium 6.li042U·002 4.1>409E..008 7.S!Ol E.002 S.ll6<E-008 

Reuptor rooer_aduh STACKl Chromium, hmc.avaled .715 .00~ 1.4073E·008 7.9784£·003 !.4202"E.OOS 

Rc«ptor tithct_lduJt sTACK.l 1.<14 2.46SIE.OOI 5.94>48.()08 4.454 1f!..00 1 6 9566E·OOOI 

Reccp4« roSb«J<Mt STACl<l Mercwk dtJoride 6.7370£.002 2. 9661 e.oos 1.3'51J5.001 l .4931£:00S 

R<ceplor fi:sber_alk!t STACKl Medo'I"'""""Y JJ396S.003 5.2342E.oo9 :Z.6002J5.003 6 1654E.()C)9 

R""PIM Osher_ 1dult STIICKJ r ... coo.2.J.7.&. 30022"E.oo8 68fAll5 S.l213!.oo8 .2232E~IS 

Roeepror fisbct_adlllt STACIO Amnle 1.12611!.()(12 1.616SJ5.00! 1.1 8~56.()()2 1.6394£.008 

R,..JM« fisbcr_1dult STACIO 8trylhum 9.39218·002 5.8360£ .009 1.6749~ 00 1 6.1 168E·009 

R«qxot fi.shcr ... adult STACl<l Cadmium 6.656lE-002 1ll4E~ 640~!- S.0248E.003 

Reotll4« r.twr_.:ltdt STACIO C1nmium. uvalml 7..5:19JI>OOJ I 37J<IS.oQ$ 77861E.OOJ l l 160£.00t 

R-ptcr fisbtf- adult STACIO (..ad 2._4 11j£.00J 51162&001 .t .. une-001 &.ti056J5.00i 

R<cq>t .. f<!h«_ll<lull STACJ<l MIII"Cllrle c:h\oride 6.S2<1E.OOl l.9277E-OO¥ 1.30:!U~ .00 I lA48S&OOi 

Receptor 6sber _ •<h•k STACIO Methyl mcn:ury 1.29761!-003 $.16651!.009 2.55 7 Sll.ool 6.085SE..OO? 

·--------------- ---·--- - IRAF4'I View Fed 2447f801t 1 

VES 007736 
MBIIA COHCEHTAATIONS OGle : 1IY26/2007 

!11'1 1-:t,(; f o~t ki\ o! ,!.•\)(H/ !. 1 '·~•·Alto'+!\' 

.. ,, :··oc · .. ~1," 'l.f V·il~C: '•' ,•,:.-t-l;t·_•NC 

,.~<[;'' 'o\'."1 ._fr· .. 'l'i\ ,,;,, ··.L ·,:;r ,._, 1 • 1 o·.; •'l • ·'II 

Recqoor r.-_...,., STACJO Te<noCDO, 2,J,1,i- 2.9JS%4CII! JJ IOQS.III S o~m~ 4.1293&015 

Recqoor Gsl>cr-o4ult STACIU Atoeoio 2.1~~ ~ 2.2991~3 3.96221l-OOI! 

Reeep<oc fisbtr_adult STACK< S..ylllun> 1.82,2·002 l Al<HE-008 3,2482B-()()l 1.4-ti(iE.-008 

R.eeeptor 1\shet_adult STACK4 Cactmlwn 1.2!811" .... 002 1.16S6E-OO? t.•7Mr)oooo2 1.211SE·001 

Reetptor 1\sloer_lduk STAC1:4 . Ch~Uin, houvalent 1.4603E-00l l .ll9lf-008 U l00f.003 3.3497.E·OOS 

Reccpcor r.--&:lull STACI(4 Lad ·~~ I.<OlSE-007 8.A316E-002 1.641lE.oo? 

Recq><or IIW<_&dult STACK4 M..-icdoJciri<lo 1.961~ 7.3041&001 3. 9 1671!-002 16028Hl08 

Reotpcor Osi'IC'r_add STACIU Methylm=uoy ).9006);.<)04 1.2190Ji.OOI 7.68171!-004 I li~IE-0011 

R«Ciptor r _ _ .., •• STACK4 Tetra<DD.l.J,7.8-- 5.8003&009 8.09S2E-OIS 9.8944P...oo9 9.11196E.OIS 

Rocc.ptor n _ _ ehlld 

STACIU Arsenic 1.1 39~·002 1.6l64E-008 l.l14A!l-002 1.6799E.OOS 

Reccp<oc fishc:r _ cluld STACKl S.ryllMil 9.62401lo002 1.9SOJE.oo9 I. 7161£.00 I 6 9851£.009 R- fisher_ dn1d STACIO Ca<l':dom 6.30421!.002 4. 9409!:-001 7.1101E.ro2 U 364E-«<! 

R- d>ild STACK2 ~be:uvalent 1. 71 SIE.o03 1,<107JE-all 7.97114~1 IAmJ>-<108 

Rc<eptot IIW<_dllld STACKl Leld 2.46SIE.ool S.9454E-008 4.4541 £.001 6.9l68E..OOI 

llec<pcoc n~he:r _Gbikl STACK2 M- <hlo<ide 6.7370~ 91>61~8 IJ4SIE.001 ).49l1E.OOS 

---:-------- - --- - ------- - - - ·-- ·- - - -· -.... -· ----- IRAP-h VIeW Ffl(l2.t~"Nf"90 2 

VES 007737 
MI!DlA CONCENTRATIONS Date : 1012612007 

'•'lll'(.o,(,:._ o' •; t" l.Jt f,l,;~l"f.U1,' ,,",,I\1, ~{ \l 

o;•~ " "<i ' '- "< , ·' · .... )I, . C'< i.'/0 ~~ -o! •!• ::;_ 

•: 'c!.;;• J•I• ,~'."!- •.:O'l;"Jjl l_l~:··t 'I).J ') -_., •1 ''·il 

R<ccplcr r.sJ>er_duld STACIU M....,.._ 1.l)96Jl.OOJ 5.2342E-009 26402£.003 6.16S4E-009 

lle«p .... s .. t.er_ehit4 STACIU TetroCDI), 2,3,7 .1- ),0022£.008 3.456ll£.0 15 5.121lE.008 4.l2)2ti-<ll5 

ReceP«W fisher_ OO.lld STACKl Arseclic 1.l26JJ!.002 1.6165£.008 1.l85SE.002 1.6394E·D08 

tar fisher_chitd STACK.l 8cryll\um 9.392JJ!.002 S.8300E·009 1.6?49£·001 6.8168£.009 

Rceop<or flthn_ctlild STACKJ C.dmitlm 6.6563E.002 4.8:l34E-008 7.6403£.002 S 0248E·008 R- lhber-d!Jid STACKJ 

~""'·- 7.S299Jl.OOl 1.J7.ME-008 7.786JJ!.OOJ 1.3160£-00$ 

R=piOf fisher-tl!ild STACK.l Lead 2.411S£.001 s 8162£-<lOII 4..JS72£..001 UOS6£-008 

1\eoepU>r frsbea' _child STACKJ Mawrio dllorlck &-S258Jl.002 2. 927'11>406 1.30lDJ!.OOI J.<IAIS&-001 

R.ceeptor fi.She-r _child STACK.l Methyl mercury J.2976Jl.OOJ S.I66SE-009 2.S51Sil-003 6.0855£-009 

Recopler rW>er_chlld STACK.l 'TeuaCOO, 2.3.7,8· 2.9l5lE·008 3.3800E·OIS S.007Sll-008 4.129lE-<l1S 

1\ecq>Cor fisbet _child ACK>~ MCOII< l.l 840Jl.OOJ 3.9068E·008 2.2992£-<JOJ l.9612E-<l06 

Reoqocor fbller _child STACK>~ 8eryll!wn 1.821 Sl!-002 1.4l04E·OOI 3.24Sl.l!.ool 1.6476E-008 

1\ecq>Cor fuhe<-ebild STACIU Codmlum 1.28812.(1(12 1.1656B-007 1.47iJE.ool 1.211815-<l07 

Roo<ptor fosba-_chlld STACK4 a.-n.m. ........... 1.4003E-003 UI9JE-<l08 I.SIOO~GJ 3.3497E-<l08 

Receptor ubc:r c.bi~ STACK4 Leod •.666SJ!.002 IAOlSE-007 8.4316E.ool 1.6412£.007 

IRAP-h \llew Fed 2«af'•oo3 

VES 007738 
MEDIA COHCENTftATIONS DOlo : 1 01261200 7 

ii'•'L~.I· l• ' ." '\'li: \',JI .-.11•.•':1)10 r.'•.,UifUI,' 

·•·• ,,_.,.,_., ·•• •-:·r·~ , .•• ,a><~,rlc 

,..,, ," j ... r_·;;,·~.·J ... , •.• ~c: .•.• ''"" 

R=plor fuloer_chlld STACJC• M......!o chJoridc 1.9616!.002 1..J041EAIOS 3.9167£40:1 &602ii!.Q08 

Recep<or foshu_dtll<! STACK.A Melhyl m<mny 9006~ I.l89QJ!,.008 16V1&$4 I.S Ill E .oo8 

Recep<or Osher_ child STACK4 T•traCOD, 2,3,7,8· 8003£·009 .09$ 21l-01 ~ 9.19441!-009 9.81W61l-015 

IRAP.ft VIew Fed ~"' 6l Pnge 4 

VES 007739 
PATHWAY RISK BY COPC O.t' 1012&2007 

. ,, ;(; !."- '• r O'Idlf-.C•'•.I((> 

' tl_ ',l:!.." , t'.! ' I,' ~~ "' f l • :,l -~ 1< :11'\ (..,ltUIO<- "\IT 

Roceptor roo~>er ><~uh STACKl air_ c:ri$k,_ inlafe Arlenic 1.7)615-007 4.!M90E-00l 

Rc<ept.>r fiSher_ adult ST'ACK2 inta:ke_crbk_ag ArCUtle 4.69118.007 2.~1E..OOl 

R<e<p(<>< r.,..._..,..ll ST"CK2 intlkc_crislc ~f Ancn1c 0.0000£+000 0.0000£+01)0 

Reeeptor fisher_adult STACK2 lrualce_crist(_eblck Arteni<: 0 OOOOE•OOO 0.0000£+()00 

"- fi.sber"-afth STACIO lncato_eria_p. """'"' 2.0421 E..OIO 1.0719E·006 

Rcoep<or 6sher_adolt STACK2 incakc_c:r11k_eus AmnJc 0.00006•000 0.0000£+000 

RClCCpltlr 6$ber_aduh ST'ACK,2 intak:c _ orlsk_fbta Anrok 2.S52 7 E-0 I 0 l..'l424E-006 

Rcoep<or fisher_ adult STACK2 i:ntah:_critlt:_mi• An<ok 0.00001!<000 0000£~ 

Rccepror nmer_adult STACK2 incakc_crisk,..PO!k Ar~onk 0.0000£•·000 o.OOOOE+OOO 

R...,...or 

r..,... __ ST'ACKl _ .... _ ... , Anmic 1.0162E-oD8 S S471E-oOS 

l'OC011 7..1334£.007 7.4nos.ool 

Receptor fisber_ad~o~h STACKl ait _ criak,_ inba~ ll<rylllu01 LS271E-007 7.423SB-00l 

ltecq1Dr fitt,«-aduh ST'ACIO intU<_crisk_., Be.yllium 0.00001!..000 S<OII!l-004 

Rcoep<or ftsber_adull STACK2 nutc ~ist..,~r BcryiJiunl O.OOOOE+OOO 0.0000(;+000 

~ fisber- od\111 ST'ACK2 intake_ cridc _ dlk.k lkryi)j ... o.ooooe+OOD 00000£-

R..._ tidw:r_&dult STACIO intakc_crist_dw BeryiJium 0.0000£..000 6 691 1E-OOI 

ll.eoeptor Oll>et_•doh S'rACIO lnllilc_crilk __ BeryiUum OJIOOOI!tOOO 0-0000£+000 

Rttt:pm-r lishet- odoll STACIO iclako_crisk_foslo Boryll .... O.OOOOE.OOO :U~SS..007 

R~peor fisher_fllf•lt ST'ACK2 latako. ctistcmilk Beryllium o.ooooP.-ooo O.OOOOE+OOO 

R~10r 611>et_ad•l• STACIO intab_ocisk..,Pork ll<lyltium 0.0000£+000 0.0000£+000 

Roc<~'!"" &ber_ad.JI STACIO ialaJcc_cmk_soH Bnym.., O.OOOOE-1000 1.11SSJ;.004 

Toool 1.5271&007 8.0822E-()()J 

R- flsbe<_adolt STACK2 air _cr&k_irmle Cadmi= US65E-007 1.1$1•E-o02 

Receptor flsber_adull STACK2 intakc_crisk_ag Ctdmium 0.00008+000 0.0000£+000 

Rec.p<or fisber Ad~ah STACIO intd.c _ critk.._ boe:f Codmi<R O.OOOOEtOOO 0.0000£+000 

Reoepoor (allc:_ldllll STACKl iauolcc _.risk_ chid< ~ .. 0.00001!..000 0.0000£..000 

---~ ·- ·· JIW>.IIV- Fed: 244!2 Pagt1 

ves oon4o 
PATifW4Y RISK BY COPC Date : 1 MS12CO? 

;~·.-, ·•;-A•. A~'A f 

j. r: '7":: ,~ F'~ },f:l'l .J ~.>;._:,y,· ; ·

1 1 "-'.( · .. .,- ~o;, ...... f~r 

Rec<pCO< rL&het_tduh . STACK2 inrake_crisk_dw Cadmh .. 0.00008+000 OOOOE~OO 

Rteepter IW1er-Jdult STACK2 inlakc_ms~_eus Cadmllmo O.OOOOE<OOO 0.!)000£+000 

R-...0< O.&ber_ad.11h STACK2 i.ntakc_crisk_nlh CadmJum 0.0000&-oo<J 00000£~00 

RcccptO: fisld_ldatt STACK2 inrakc _Grist., rnflk Cadmium o.ooooc.ooo O.OOOC)E.foOOO 

RectrKot flsMr_du.h STACKZ intako_crisk_])ork Cadmjuro oooo ~ O.OOOOE-0 

Rec.,_. t'isttet _ adu.l't STACK2 iooolte_cristuoU Ca6:nlum O.OOOOE+OOO O.OCOOE+OOO 

Total l,.8565e.<l07 I.!Jt4&-(l01 

Reeep10r fasba" _ adcft STACKZ alr_cnsk'_inbafo Ouanium. hcuvalellt 7.63S6&007 UIIIOSE·OOl 

Rec<pea< fishd _lldult STACK2 intake_crist_-a 01mmium. hou;vak:rftt 0.00006+000 2.~58£·004 

Rcccp10< fkheo """~ STACJU lntato _ crisk_ beef Chroad~rno hcuvateal o.ooooc.ooo 0.0000£<1100 

Receptor tbher_advtt S'TACKl in,ako_crisk..,dlick Chromium, hcu\'a.kn4 0.0000£«)00 0.0000£+000 

Rccepcor fishtt _tdlllt STACKl iauke _ crlik_ 4w Ouomium,. hc:'lava.looc O.OOOOE•OOO 9.0188E.008 

Roeepeor fisbcr_a6u.lt STACKl illlakc._erisk_caJi Cbramiwn. hcxaval;m o.OOOOBfOOO O.OOOOE-0 

ReocpiOr f.sJ..Cf- a4ult STACK2 inltk•_erisk_n,., Qromi_um, )lcxavaltftt O.OOOOE+OOO l.m.JIS-00! 

Reocp10< fisl'.cz:_adult STACKl icuate_crls.:k_railk t:hromilm. huav.ale.ot 0.00006+000 O.OOOOE.foOOO 

Rcoepcor 6sbcr_adalt STACK2 intlb _crisk__pork Clwomlum, henva!eot 0.0000£+000 O.OOOOE+OOO 

Receptor (lsbi:C'- adult STACK2 i• tlk6_ctlsk.,IOil 0\romitm., hexavalcu& 0.0000£+000 3.601E.006 

Tocal 7.6)56£.007 l.l948E·003 

Receptor 6sbu_lldolt STACKl ajr _ crist. _ mhale Load 0.00001!+000 O.OOOOE.foOOO 

Rcccptoor fistler _ adlttt STACKl ifllake_citk_aa IA:od O.OOOOE*OOO 00000£~ 

R- fishct_tdolt STACK2 i.calt._crisl<_buf l,.ud 0 00001!;00(1 O.OOOOE.foOOO 

Rtcoptor &bor_adult STACKl iotake _ cri.sk -~hick Leoul O.OOOOE*OOO 00000£-0 

RCOCj)t« fishcr_ldllh S'rACIO intate_eri:sk_dw Load 0000~ O.ooooE.foOOO 

RccepiOt fi.sbtt- adult S'TACK2 intake_crisl(_cgp Lead o.ooooc.oou O.OOOOE<1JOO 

Rec<peor fish"-adult STACK2 irn.ate_c:nu_ra Load O.OOOOE*OOO OOOOOE~ 

Receptor fisher_adrlllt STACIO intake_,riak_rnilk L .. d 0.00008-000 O.OOOOE-0 

!RAP~ \/lew Fed Ua3 Page2 

ves oon41 
PA'OIWAY RISK BY COPC D.ato: 101'2612007 

1!.;-.'•l r, · !IL H~'·l·~Hr> 

l{f _:r't· '; :~ ':.U;•.Jr.,f{ ,J ~-: .,·.-: 1 .•,•, :,o .J\'C,'• l,;•) " .. i:,II..Nr:t-R~I ': I( UUOT'l ' ll 

R~ tlshl:t- ""'h STACKl crUk__pork r.-! O.OOOOE>OOO O.OOOOE+()()() 

JteeeptoT ftsl>u_adult STACKl lnt~~ke _critic. _.on l.ea<l 0.0000£>000 O.OOOOE+OOO 

T ... l 0.00006+000 O.OOOOE•OOO 

Recep1or noh<:r _adult STACK2 alt_crlsk_inhalc Mer<:111ic ohlorklc 0.0000£+000 1.39148-004 

R«<ptor lkbc<_aduk STACKl iolake-critt _., l-i«cv.nc~ O.OOOOE>OOO l.l.lJIE.OOJ 

RecqHor f1thu_adult STACKl io11t6_crisk_bctf Mereu ric chlodck. 0.00001!+000 O.OOOOE+OOO 

ll«q>IOI 

( ___ 

STACKl i"tth.-crisk_chQ Memariec:.~ o.ooooe..ooo 0.0000&.000 

Rece.ptor rilhtt _ aduJt STACKl intlllc~ c:rillk_dw Mercuric c:hlorkle 0.00006< 000 1.23346·006 

Recepc« f'*<_ad..tl STACKl intake_ crist_ ~us Meccuril: chlorilk OOOOOE+OOO O.OOOOE+OOO 

Rcoe!><O< fither _adult STACKl intake cris~t'\sh Men:urie chloride O.OOOOE+OOO 0.0000€+000 

~ f .... _acMI STACKl loW._ cr!si<_O>ilk Mcrcuricchlori4e 0.0000£>000 

·R=P'O<. fisher _adult STACl<2 inta~e _ e:ritt_porlt Men:urto cblotide O.OOOOE>OOO 

·-

O.OOOOE+OOO 

Rcoepl« 

_ _ adult 

STACKl tntab-crid: _toil M.....n. dllori4e O.OOOOE<OOO 6.1•22£.004 

r ... 1 O.OOOOE+OOO 8.9ll94t:.003 

ReceplO< fioberJdul• STAOO air_aisk_inhale Mercury O.OOOOE+OOO 8.7099Jl..OOa 

Tou1 O.OOOOE..OO 1.1099&008 

Roccp10f ruhcr_•dutt STACK2 in ake ui~k-•J Mdjlyl "''""''Y O.OOOOE+OOO 1.2706Jl..003 

Receptor lllbet_IICU< STACKl \Q\fke _ triJlc _beef Mcayl :uemoy 0.0000£+000 O.OOOOE+OOO 

~"'PIOf flthcr_adull STACK2 lruau _ cri>l<_ Clllck Me<hylmem.y O.OOOOE+OOO 0.0000£+000 

itccq>o>< fiJber_aclulr. STACKl inllke_ crilk_ dw Methyl """"'Y O.OOOOE._ I 18241!-1106 

Reecplor r~Sli« adull STACK2 inlake _ crls)l _ fi£g9 Melby! lllC"""Y O.OOOOE+OOO O.OOOOE+OOO 

a...,.,. ,,_ __ STACK2 iotW-criok- fish Mclllyl DlCIQCy 0.00001!>000 s.02SlE-001 

Receptor fisher_~uh STACK2 inwke_cdak__milk Meahyl tnefeury O.OOOOE+OOO O.OOOOE"''lOO 

Re<cpoot fiJb<r_odlllr STACKl ""'"- cr!sl< JIOII< M<lllylmo-eury 0.0000£..000 O.OOOOE+OOO 

Reetpeor lisber_aduh STACK2 intAke_ crklk_ coil Mclhyl "'""OTY O.OOOOB..OOO • 3.6168&005 

Total O.OOOOE>OOO S.O>alE-001 

- - - --.. ---·--·--.. ------- ~ .. ·-~ IIW'-bVIew Fld244&4 Pogo 3 

VES 007742 
PATl!WAY RISK BY COPC Dr.e : 1on612007 

~ .. ·:. . : -.. .._ •··'·' .. "'~' 

-:.·,-, ~-· fj' ·.:,;_ ' · "•' ,_!..;.. ·,·.·.;;;o, ·, · c:-· C•\ ~. 1 •·:I·:IS·, L> '.;G r (\j\ 

R«<peor fi.Jhcr- aduh STACKl •i.o-cnalt,..itlha.le T....a>D.l,J,M· 0.00001;+000 OOOOOE<OOO 

ROC(p:Or. fuhcr-"""" ST CK2 incate_crisk_aa r .... coo. 2,3.7.8- 2.4979£.001 !.0385£.00• 

Rcccptor fbbcr _ adclt STACKl fntatc _ crist .. bec'f T.....a>D, 2.3.7.8- O.OOOOR+OOO 0.0000£+000 

Rocepcor fisl>cr_odoll STACK2 illlakt _ crisk .... cllick TetraCOD. 2.3.7,8- O.OOOOE+OOO o.ooooe--ooo 

Receptor fbhcr __ aduk STACKl (ntako _ crisk _ d'N TettaCD0, 1.),),8· 4.26!SE·Ol2 S 0992E·006 R- Ct'S.her"_adult STACKl locak~ .. tri:lk _ CUJ r .... coo.u,,,s. o.ooooe.ooo 00000£.._ 

Receptor fifhtt_,aduh STACKl ntalt~cr sk tltb TehaCDO. 2,3,7,8· 6.SlSSE·009 1.2407F...Q04 

II<- ftsbcc _altAI STACKl io!&e_erbl:_dlllk To:noCOD.l,J,7,S. O.OOOOE +000 00000-

Receptor fithcr_aduh STACKl intak•_cri&k..Pork r ... coo. 2,3,7,8- O.OOOOE+OOO O.OOOOE+OOO R- ras~~a _ .ad•tt STAal iomke_crist_,.;J T....COD. 2.3.1.8- 2-603£-009 1.0J54£.<)QS 

T~al 3.4ll6E-008 6.98llB-OO< 

R.ceqr.or ~- STACKl ,;, _eri!ic_lllhale ArMnic 2.67021!-407 H293£..003 

Receptor Oshcr_ad\llt STACKJ intake_arisk_aa Arsenic 4.5781£.007 2.3871£..003 

Rcctptnr fisller _ adlalt STACIO intake .. «kk_bed Ars.et~ie O.OOOOE+OOO 0,0000&-000 

Receptor tilhtr_a4111t STACK3 Intake_ crisk _ chJck ..,..,;. OOOOOE+OOO 0.0000£4-()00 

Rc- fbher_•<f~\ot STACXJ inta ~ctis _dw Ancnic 1.9929£.010 1.0480S.Q06 

lteeoptor tilhc ~lt STACIO U.takc_erisk_c-ua Arwoi(l O.OOOOE+OOO O.OOOOE-0 

RcceptOT rllh«_ad~.~tt STACK.l il'ltakc _ erisk _fish Artcnic· 2.•912£..010 1.31 00(;,.006 

Reeoptor nw.r..,.,.n.M STACIO intU.e_Wlt_md.k 

- O.OOOOE+OOO 0.00008-.{1(10 

Rc«pcOr flt.htr_ad•lt STACK.l in_;ake-c:risk_potit Arsenic O.OOOOE•OOO O.OOOOS+OOO 

R=plco fuhcr_ad!alt STACK.l a..b_crilk_ooi An«>ie 9.917iE.-009 PI3!£..00S 

Totti 7.35191':007 7.27:14£,.00) 

R«q>co: fisl>cr-tdoh STACKJ lir_crilk_iDhalc Beryi!Nm 1,.90Jli-()07 1.2446£..003 

Receptor nlhcr_adull STACK3 lotatc_crisk.,.aa 6eryUiurn O.OOOOE+OOO S.2778E-004 · 

Rrcep<Ot f'ij))cr'l'a~k STACK3 iooal:e _ eri.S..J>ed Beryllium 0.0000£-tOOO 0.0000£+000 

1\t<.tp<of n.sher_Ach:Jt STAOO im>b_<1iik_ciuol: iluyUium O.OOOOE+OOO Q.OOOOE+()OO 

~;-·------··· ·---·--· --· •M---·--·-·- ·----·· .. ---·--... ·--··--·---------· 

Fed 244&.$ Pogo• 

VES 007743 
PATHWAY RI$K BY COPe Oatt : 10126/2007 

r<:::. i ,-~;'1 ,_[!~.",' _,,,, ,._.., 1 ,,,,, ., ·c·- TO'Il.l ~lf>ll"-t...'"#li"(;.J 

,_.,,_ .. ,. "·~~w; 01..011"' ... 1 

Reoe.JJW nst~er_adu.ll STACKl (n.;ako_(t'i&k_ctw Bc:rytliUITl O.OOOOil<OOO 6.S367B-008 

Roc<plet flsl>« _ aduh STACKJ intake_ crisk_ c-&at B«yyliwn 0.0000£+000 O.OOOOE+OOO 

R=eptor liabu_ad•lt STACK.l i?lt.kc_ «ilk_ flab Beryllium O.COOOE+OOO 2.,llOB-007 

Rcocptar fi•h<r _ adoll! STACKl intate_eriU_mitk S.rytiium OOOOOE+OOO 0 OOOOE+OOO 

Rcc:epeor fisher _ld11h STACK.! iouke_~sk_pork BerylllUfl'l o.COOOE+OOO O.OOOOE..,.OOO 

Retq)tor fisber ..}dull STA.CTO intak.e_crist_JOil Sctyllilll'ft 0.0000£+000 1.14121;-004 

ToLal 1.4903£.007 7.1!74E-<lOJ 

Receptor Dshcr_•<Mt STACKl .1ir_crblc_ioMJe C.dmlu~n 2.79441:-007 1.8112£..00 l 

Receptor tish«_l4uh STACKl tntake_ c:risk...•a c..dmium 0.0000£+000 0.0000£+{)00 

R«<poor (tSI:itt _adult STACTO intakc_crisk_bcd C.dmium O.OOOOE+OOO .o.ooooe+OOo 

Roc: ' tpiOI' fisher_aduh STACK.l inu.ke_aitk_obick Cadi.Wnt O.OOOOE+OOO O.OOOOE+OOO 

Roc:<pco< fishe-r_ :adult STACKl intate_crist_dw Cadmium 0.0000£+000 O.OOOOE+OOO 

R«<poor ft5ber_aduh. STACKl iotake_eriu_•w Cadmium o.OOOOE+OOO O.OOOOE"()()() 

Rcw:cprlil>t fis:brt_adu!c STACKJ t~ke_erist_nu. Cadmium O.OOOOF.+OOO 0.0000€+000 

R_..,. fishe.r_a6ub STACKl iatalce erisk ~nllk Ct4mium 0.0000£+000 O.OOOOc+OOO 

Reecpcor tisbet_•dult STACKl inttkt_crisk_I)Ofk CadMium O.OOOOE+OOO O.OOOOE+OOO 

Roc:epwr f..t.c<_tdult STACK.l .intake_ criJk _ toi1 CoclmJum O.OOOOE+OOO O.OOOOE+OOO 

Total 2.794•E·007 1.81121;-00l 

R«<piOt Wbcr_adult STACKl air_ eri:s.k_iobalt a-Num. bcltaval<nt 7.4~16E.007 1.0349E-00) 

R«t9'0" fisoo_tdul, STACKl imake_crisl(_aa Chromlcm, hc.xtvaknt O.OOOOE+OOO 2.lS02E.-004 

Recqnor faha_achdt STACK.l .,,..._<N~bc<f Clwoa:iam, bclta..OCQI O.OOOOE• 000 0.0000Et1l00 

Receptor fi __ ..,.h STACKl in(t\c _ crisk_ chiek Chromium, hexavalent O.OOOOE+OOO O.OOQOE+OOO R- &be<_ ...... STACKl uiealte_air~dw Chromiwn. bcxavalem O.OOOOE+OOO U600B-00l 

Roctp10C' fi$hc:r •~tt STACK) intate_cristc_cggs Chromium, hexavalent O.OOOOB•OOO O.OOOOE+OOO 

Roc:opcor fio!la_lduh STA<;KJ iotah-critlt_ fish Cbromitun. hcxavalt'at 0.0000£+000 1.6613£..001 

Receptor nJhot_aduJt STACKJ inlllke_cris~Jnilk ChrotniOO'I. beuvalonl O.OOOOE+OOO O.OOOOE+OOO 

~~·- --· -- ----~--·------· ~ ..... ~.- IAAP-h V..w FM l «86 PageS 

---

VES 007744 
PATHWAY RISK BY COPC Oa;e ; 1 0,7$12(1()7 

<~ ... , -c-;._ "'·~ .., ..,o 

L': ·" o'J· :_..:o ·'l•\: 1;~ -: r-JJ r' .".fr··;, ;. .;..Ar..UI\ :;r ~l\. L;J;;I1l"• 

l\ecopoO< fisbc:t_aduh STACIO io..U _ criok _port< a.-;.., hwval"'t O.OOOOE+OOO O.OOOOE-t-DOOReceptor filher_adWt STACK3 naakc_crisk_:~oil Chrftmh.tm. hc91Avalc~ O.OOOOE->000 l.SSSJli-006 

T.W 7.<l t6E·007 1.26361!-003 

Rccepaot r.-_o4ult STACIO 1ir _ «ist_ inll.lk lad O.OOOOE+OOO O.OOOOE~ 

ReteptOt fis.hu_a<htlt STACKJ lntake_erl11k_aa: Leod 0.00008-1-000 0.0000~+000 

1\- ·--- STACIO - ... - _bed' Leod O.OOOOE+OOO OOOOE~ 

Receptor ftshrr_aduk STACK3 n4ake e<it~chick Leod 0,00008+000 O.OOOOE• OOO 

llec<p!M tisb<r-tduh STACKl iatlke _ c:rili. _ dw Leod O.OOOOE-1-000 O.OOOOE+OOO 

Jlecep110r fist.ct _adult STACK3 lcuak:e _ c:risk _ eps Leod O.OOOOE-1-000 O.OOCOE•OOO 

Rcctptor lishtr_adah STACIO lntoke_c:rhk_nib Lead O.OOOOE+OOO 0.00001!+000 

Rccc:pEOf fiSI>ct -•dul• STACKJ inlake_<ril*_nult Lood 0.0000£->000 O.OOOOE+OOO 

ReccptOf fbh.cr_tdWt STACIO lntakc_t:Jitk_pork L<od O.OOOOB+OOO 0,00006+000 

Rn:q><or (iJI>ct_odu!t STACK3 iobkc_crist_ .. ~ lad 0000~-+000 O.OOOOE+OOO 

T.W O.OOOOE+OOO O.OOOOE+OOO 

R""'"O< flsbu _ tduh STACKl alr_critlc __ i.nbale M..-...io ol.loride 0.00006+000 1.34905-004 

Receptor f.shet_tdu;lt STACKJ intake_c;ria_ag M«wric chloride O.OOOOE+OOO 7,?7705-003 

Recep<or (&~lte, adult STACIO intake_ crkk,._ beef Mututie chJoride O.OOOOE+OOO 0.0000~<.000 

ReccpiOf tishn_a&dt STAQU lnW<e_critt_chick Men:wic chloride 0.0000&+1)00 O.OOOOE+OOO 

Rt<:epwr n,ber .. aW.lt STACK3 \ntake_crls.k._dw Mc.rcuric cb1orkk 0.00006+000 2.204$1;:.-006 

~ liih<r_adl:h STACK3 inub_criok __ M~c:hloride O.OOOOEtOOO 0.0000£+000 

Receptor l'ilhtr .. adull STACKJ fnlike_orbt_ftsh Mcn;urie chloride 0.00006+000 O.OOOOB+OOO 

R=plo• O.hcr- od>lt STACKl AI tab- c.rist- miOt Mmur',c. dl!toride O.OOOOE-'()00 0.00006+000 

lteotptor r'dhcr_ad•Jt STACK3 Intake_ criok __po<k Mcrwric: chtorlde O.OOOOE+OOO 0.0000£+000 

Recq>IOf fisber_acbk · STACIO in•b_c:risk .. soU Mercuric ddori& O.OOOOE-1-000 949'1£-004 

T.W O.COOOE<OOO 8.7090E-003 

Re<ep<or lither_ aduh STACKl air_abkJ"halo Mercury OJJOOOE+OOO 3.4078£-008 

·IAAP·h Viow - -- ------ -----------·

F

--9d 244&7 --·-- PallO 6 

VES 007745 
PATHWAY RISK BY COPC O~c : 101'261200"1 

f'~. ML .,._,. 1',( I'•~.· A!;!} 

I.•IC':C:i' '(l rl .'\ · <'-F<•I 1'.'•. 1 •1'.' .. <'• (.:f' • 1\"KI"!f~ :i \ tlUU!,[ '>II 

Toul 0.0000[..000 8.4078J;-008 

Receptor fuhc<_adull STACKJ nq.ke ms~c .,s Melby I mtfe\lC)' o.ooooE-ooo l.ll186.003 

Receptor l'ilihrr_adWt STACKl lntakc_c:risk_bW' Me~byl mercury 0.0000£-oOO 0.0000£+000 

R.a:qiCD! 

r _ __ STAOO f...U_ aido...clllcl: Melhyl ,...,..,. O.OOOOEfOOO 0.00001!+000 

J\c<cp<o< fitbtt_aduh STACK) int•lt.e_« isk_dw Mc )' ~M:re ry 0.0000£•000 l.l671G-006 

Rc<ep40f Rlh«-a.Mt STACK) intake_ crisk _egp Metflyl mercury o.ooooe ooo O.OOOOC+OOO 

Reeq:<ot r.....,_ad!l, STACK) _ _ erislc_fllh MClhylm=ury 0.0000£..- 4.9601£-ool 

Rtcc:pcor fither_adult STACKJ ln~kc crisk llk Melhyl mercury O.OOOOE+OOO 0.0000£+000 

~ nJbcr _ 6dul• STACK) inub_erisk_p«lr. Mdl!ylme=oy 00000&-000 0.0000£+000 

~ n-Jdu•• STACKl i.ntab _ criJk _toil Mclllyl """""'11 O.()l)(j()IJ-ooD ).503<1£-005 

T<Mtl o.oooo.r;..ooo 4.1\7288..001 R- fiJbu_adub STACK) air_ e:ridr: _ Ul.halc T...COD, 2,3,7,8- 0 OOOOE <-000 O.OOOOS+OOO 

Rccc~lll< l'iWr_aduh STACK) inukc_aist_aa TctnCDO, lJ,7.1- 2.<414£· 008 4,926$6-004 

RtOeptor tilher_adult STACK) ituake_crisk_bccf TecraCOD. 2J.7.8· 0.0000£+000 0.00008+000 R- fllha- odalt STACKJ incake_crisk_c:hKlt TC!nCDD. 2.3.7.8· O.OOOOE.._ 0.0000£+000 

R.eceptor Rsllet_adult STACKJ intd:c:_crisk_dw T01raCDD. 2,3,7,8· .. 167 E~ 2 .9 92~ 008 

Rcccp40f nlhet_adolt STACK3 lntake _ crisk _taP TecraCOD, 1.),7,8· 0.0000£+000 0.00006+000 

~ r.-_oOJJt STACK) inoah _ crisl< _ filh TC1J'aCDD, 2,3,7,8- 6.)1J4E-«19 l.llll E-004 

J\c<ep40f filher_adult STACKl inttte_crisk_milk TcttaCDD, 2,3,7,8· O.OOOOf.+OOO o.ooooe+ooo 

Receptor t'iJhtf-odull STACK3 ., .• tt_ t:risk_portc. TcttaCDD, l.J,?.&· O.OOOOE• OOO o.ooooe+OOO 

R«-epw 

r...., __ STACK) ir.c:Ue_crisk_soil TanCDD,l.l.7,1· l.SSSOE-009 US~E.-005 

Totlll U397E·008 6.8264[!,.004 

lt«-eptor n _ _ adult STACK• •il_crisk_inbalc Anrnle. '-00 11Jl.OOI L62Sle-ool R- filltu_adJII STACK4 intab-crisk-" A....,;c 8.600'&008 USS)£.00< 

Rc<c- tlthor _ aduh STACK4 lnt&kc_erisk_tK-cf Aucnie 0.0000£+000 ooe ooo 

R- filhcr_adult STACK• inlll<o_crisl< _tlri<k Anenic 0 OOOOE+OOO 0.00001!+000 

·---- -··-- ---- --·----·----· IRAP•h\liew Fed 24-188 P019f1 

VES 007746 
PATHWAY RISK BY COPC Ocwe ~ 1012612007 

1 1:. ·: ...... ·-.::•-1-.:> 

~~ · .. 1· ' ' _,- -·:. ,;_. •~: ... :rl ,,., ·~ur;·1 "lt 

Reecptor 6sb«_adull STACK4 intJ e_cri~k dw Artcn:ic 481661>-010 2.5J29E-OOO 

RoccpiM fisba_ad';l]l STACK4 lntate_orisk __ ......... 0.00001!<000 OOOOOE+OOO 

lltccpeor fisbn_adult STACK4 in1Br:_crisk_fbh Atacnie 6.MiltfA!IO J 166lE-006 

Receptor &h«..,..ldult SrACK4 intate_Giak_mllk Arsenic 0.00006·1·000 O.OOOOE<-000 

R<cep10r (1$hU"-adv.h STACK4 baltke_orist._potk Anclt~ O.OOOOE<OOO O.OOOOE+OOO 

R<ccpcor fisbet_IC!IIIt STACK4 intake_ crist_.toCI Aromlc 1.9lJJE-009 1.0<99E-005 

Toca.l 1.7903&007 1.09291!-003 

Rocepeor filiber_adull STACK4 •ll_cri.s:k_inbtle OcryUilltn 5.02421!-00J! 2 442.3£-003 R_, ftSixt __ STACK4 fnbl;e_crlsk_., llerylfium O.OOOOE<OOO 1.00 19E.()Oo< 

Receptor ftsher_tdlll.t STACK4 lntakc_aiak_bocr OeryUi~m O.OOOOE<OOO O.OOOOE+OOO 

RCC!epiOf' fi.!ibri_aduh STACK< m!Jkc_criJk_tlll<k Dc:ryllium 0.0000!+000 O.OOOOE.O.OOO 

ReOcpror 

r.-__ , STACK4 mr..ak~ crisk-dw B.yUium 0.0000£.000 I S'mll-007 

Reteptor- fisbu_ldult STACK4 in.tU:c_crist_q,p. Dcryllhm 0.0000£+000 O.OOOOE+OOO 

Reoq,cor 6sherJ dult STACK4 inW<t-criJIUllb il<rylliwn o.ooooe•.ooo 6.1220£·00? 

Rcctptor iis.btt_ad.Wt STACK4 intate_aidunilk Bayltlum O.OOOOE-+«10 O.OOOOS+OOO 

Receptor fis.~ _fldult ST-ACK4 intJke_aisk_port Dcryltium O.OOOO!i+ooo OOOOOE~OO 

ltcoeptor fbher_aduk STACK4 intike_c:riat...soil Btryllittm O.OOOOE~O 2.2248E-OOS 

Toul S.0242!UIOS 2.S6SS£-003 

R_. fi.shc:r_tdvlt STACK4 •• c;rbk ~hak C.dmium 9.3996£.()()8 6.0923£·003 

Roecptor fi.sher_•dldt STACK4 intlke _ cris:~ 1 Cadmium OOOO~tOOO O.OOOOJl.t·OOO • 

ll<ctptor rt!hef_16uJt STACI<4 intake_ crist _bee-r Cadiruum O.OOOOE«XJJ O.OOOOE+OOO 

Receptor fish<r- adah STACI<4 lrJl.to_crlsk_cl!kk Cadmium O,OOOOE..OOO O.OOOOE->000 

1\otep<or fishcr_•c:ll.llt STACI<4 irtlake_ui.sk_dw CAdmium O.OOOOE<OOO O.OOOOE+OOO 

Rtocptor td .dt STACK4 ll'Aake-cri•l<.. '"' c.drnium 0.0000!+000 O.OOOOE+OOO 

Rocq>Ccl< &btr_odult STACI<4 _ __ _r ... ~ 

Codmiom O.OOOOE+OOO 0.0000£...000 

Receptor flShcr_•dutt STACK4 intake_crisk_milk CadmNm OOOOE~O O.OOOOE+OOO 

·-- · ... IFW'41 "'- fld.-9 P1901 

·--.. ---

VES 007747 
PATHWAY RISK BY COPC Dalo : 10128;'2007 

\''_ ( ;•1(",'' '(:1._',/.f."<' II.- '-.· .. •• (' f-1 ~'~.'. ( J(J fl\: "";"J\1'"') 

._._,_,"' f< .-~ r~ --~~· ·lN7 

~tor 

Recoptor 

ReocpfA>r 

Re<opmr 

Receptor 

Ree<p<Or 

RctC!J)Cor 

Roct:peor 

R«e.,cor 

Rocepc:or 

Reoepto; 

~ 

Ro<epcor 

RcC<IpiO< 

Rocop<or 

R.ccC"pcor RRcc"J)tof 

~ 

RcOepto; 

1\ccq><or 

Receptor 

Rocoptor 

tRAP_, VIew 

frsbcr_adult 

6.shcr _ll.tatt 

f>Shm' _odult 

5sber _ldult 

fisll<r _ odult 

lbhe<_oduh 

fisher-tduJt 

Cl$hcr_ lldull 

fisll<r _ odult 

6she1_adult 

6 sbcr _adult 

fishet_Nuh 

fUbcr- adult 

fisher_ adult 

llsbu _ odull 

fisher_adutt 

lbhe: _ odulc 

fishcr_adult 

fldlcr- adult 

tHhe:r_adnh 

fid>u _ odulc 

8sher_adolt 

fi.stu:r _adult 

STACKA 

STACK4 

STACK4 

STACK< 

STACK4 

STACKA 

STACK4 

STACK4 

STACK4 

STACK< 

STACK4 

STACK4 

STACK4 

STACK4 

STACK4 

STACK4 

STACK4 

STACK< 

STACK4 

STACK< 

STACK4 

STACK4 

STACK4 

int.ke_crisk_pork 

i:nbke_crisJc:_sod 

Tol11 

a.ir _ Cl'iW_ inhale 

incakc_cris.k...•s 

mme_cri.lk_bcer 

mll..k.e_erisk_cbrek 

ia.bte _ cri.Jk _ dw 

intake_erisk_e:cgs 

mtat._crisk_ri!Sh 

inU.Ic.o_erisk_rnlll: 

inub_trisk_port 

iocaokc_crisk_.oiJ 

T .... 

ail_e<rUk_inlul.c 

iaub crl~aa 

inlakc_cri:s:t _beef 

mrot._ <risk.. clliclc 

..... -crillc,_ dw 

lnllke_critk_cus 

m<*• _ crillc,_fim 

intlke_cri!lk.,.milk 

inlll<c_crioic_por'c 

intakt_uislc._$0U 

TOC&l 

Jh:_crisk_inbale 

Cad!nium 

Caclmi~ 

Qromiwn. JtcxaYilent 

Chlomium. bcl.a,,.Jent 

CbcomMn. he:uva:cnc 

Chromium., heuvaat 

CbromiW'.I,. ht.\avaknl: 

ctwomhun., beuvalefll 

Chromium. huavalen1 

Chromium. bc.uvslent 

Chromium. l'tuavakl'\l 

Chromium. benvdent 

Lcod 

l <A4 

Lead 

Lnd 

Lcod 

Lead 

Lead 

Lead 

L<od 

Lead 

Mtn:urie chloride 

0.00001!«<10 

O.OOOOE+OOO 

9.l996E-<~OS 

2.51ltE-007 

0.0000£«)00 

o,ooooe;+OOO 

0.0000£4000 

0.00006+000 

O.OOOOE<OOO 

O.OOOOE+OOO 

O.OOOOf+OOO 

OOOOOE•OOO 

O.OOOOE+OOO 

2 SI21E-007 

0000~+<>00 

O.OOOOE+<JOO 

0-0000£+000 

O.OOOOE-+000 

0.0000£+000 

O.OOOOE+OOO 

O.OOOOE+<>OO 

o.ooooE~ooo 

O.OOOOE «100 

0.0000£+000 

00000£<000 

0.0000£.000 

0,0000£+000 

O.OOOOE"«l< 

6.0923E-003 

l .4890E·004 

4.2198£-()05 

O.OOOOE4-000 

O.OOOOE+OOO 

Z iE 00? 

O.OOOOE+OOO 

4.01SOE-008 

O.OOOOE< 000 

O.OOOOE+OOO 

6 R9SOE.-007 

3.9204£·004 

O.OOOOE+OOO 

O.OOOOE:4-000 

O.OOOO!l+<IOO 

O.OOOOE+OOO 

O.OOOOE+OOO 

O.OOOOE+OOO 

O.OOOOE+OOO 

O,OOOO'E+OOO 

O.OOOOE+OOO 

O.OIJOOE+OOO 

O.OOOOE+OOO 

4.2328E-OOS 

~·.-- ----Fed1:" 90-·;~e9 

VES 007748 
PAlliWAY RISK BY COPC oato : 1 Oi2612C07 

!~:..~ 1 ()[; ~··l. ~<-l.l 1 ,l)_,t,'( :·:,;"'<'< •\Y C D :'I :~- ' U ' I'I,L"'•IL•\J-n! 

( Mo<;t_!l ~·:·1'. ~;~J~ ' fN I 

R=p«>< fbher ~ idl.lh STACK4 intake_cri*_.ll MtrWric ebJotfOt OOOOOE+OOO 2.38706-003 

Re<:ep!Ot flSber_adu.lt STACK4 1.-.kc_aisll_.bcd Mercuric chkaride O.OOOOE+OOO O.OOOOE• OOO 

ltc«poo• n _ _ adul< STACK4 in'*-e_«isk_dliek Mereurie cbtorick 0.0000- O.OOOOE+OOO 

Rl<q>lor fuher_adnlr STACK4 l""ke_cdsll_.ctw Merturle chloride O.OOOOEOOOO l .499lll-OO() 

R""'PIO< !iJI>tt- adul! STACK4 intaltc_crisl(_<liJ Mercuric <blond< O.OOOOE'tOOO OOOOE~ 

Rtceplor f'isherJdult STACK4 inllke_crisk_)lib Morturio chloride O.OOOOEOOOO OOOOE~OO R- t'W-.cr _adult STACK4 blakc_crilt_mllt Macule d!.loridt 010000£+000 O.OOOOHOOO 

Receptor fisber_adult STACK4 intake_ a'isk,..))fk Mercurio chlond ~: o.ooooe•.ooo 0.00008+000 R- Citlbfif _ adoh STACK4 ...... _ crist<_>Oil .........X<hloo'.de 0.0000- 1.78JS&.Oo4 

1'otfll 0.00006•000 l .61371!-003 R- lilhc<_adllll STACK4 .. inhale M """'Y 0.0000&+000 l .607li!·008 

Tow 0.00001!•000 2.607l S.OOS 

RCC<j>lol n.oo_aduk STACK4 ncn. ct~o~c. ., Mcrl1)'1 .,.....,. O,OOOOE•OOO 3 611J 13-004 

Recqnoc fr.Jher _ad\111 STACK4 tntake_crisk __ beer Mdttyl mercury O.OOOO<+OOO O.OOOOE":(llO 

Reeepco: rahct_adult STACK4 it\tllc:e_crisk_ chick MOI.byl """"'>' O.OOOOE+OOO 00000£"'000 

Receptor llsb<r_adull STACK< ntake,_eri~dw Mcrl1)'1mcmwy O.OOOOE+OOO 2.9WE-006 

Recep~or fllbet _ aduh STACK4 lnllkc_crilk __ MClltyl """"'>' 0.00008+000 OOOOE~OO 

Rccq>IO• fllhcr _adult STACK4 lnlllh_criolt_fisl> Medtyl mtTC:Wt'J O.OOOOE+OOO 1.237<4!!+000 

Recep«>< 1\Jbe:r_aduh STACK4 Inial«_ ctltll_.mllk Mtthyl mercut)' 0.00001!+000 O.OOOOEHJOO 

Rcccp~r flsl>cr- adllll STACK4 iollke_<ri*.J"'fk Md!ty! m<rcot)' O.OOOOE+OOO o.ooooe+ooo 

Rcoeptor f.Uct_l®h STACK4 intaltc_crisk_toil Mell\y1 mercury O.OOOOE•OOO I.OS31 !1-00S 

Toea! 0-0000E>OOO 1.2378£+000 

Re«ptor r .. ber_todul• STACK4 aW crisl\._ift~•~ Tco.COD, l,),7,S. O.OOOOB+OOO O.OOOOE+OOO 

.__ fisbc:t-..... STACK4 IAIW_crislc_Oi T....cDD,l.).7.1· 47lOJE-009 9.6167E·OOS 

Rceoptor nlher- adult STACK4 lnta.ke _ erisk_ bee( Tetn.COO,l.317,8· 0.000011+000 O.QOOOU4-0U0 

~ fishec- adult STACK4 , _ _ crill<_chidt 

T....COO. 2.3.7.8- 0.0000&4()00 0.00001!+000 

.._ - .. --·-··-.. ·- RAP~V- Ftd2"-491 Page lO 

VES 007749 
PATHWAY RISK IIY COPC Date : 1012612007 

,,-, -.-q -.-J:"Al•l.:..!/\~·1'> 

•(r, r-'lC" ' ·,:: 1 r;t;td~) S•::·. r. .,~~ 1·1\',\'1' cr);•,;" ;;HI>JUR i't•;:;l\ QVOI •I "' 

~' nsbir_a&lll STACK4 inllb_crisk_dw T ... aeoo. 2.3,7.1- 9.910<E-0!2 1.8966E-Oo7 

Receptor fi.ther _amwt STACK• intake c:ri* ~ TciraCOO. 2,),7,8· O.OOOOE«JOO O.OOOOE->000 

Roc:epcor fither_aduJt STACK4 iata.ke_ erisk_lish TemCOO, 2,),7,8- I S289E.008 2.9054£..0(14 

R- r.<~>c<_od'Jic STACK4 inat&-cri!I;Jnilt To..COO, 2.3,7,&- O.OOOOE<OOO 0.00006"(100 

ReceptOr n.dla-_.duh STACK4 intake_erisk..J)C)rk TdnCOO, 2),7,8- 0.0000£+000 .ooooe ooo 

Rocql<or flsher _ ackll 1 STACK4 inulce-«i.sk-son Te11&COO, 2.3,7.8- S.I079E.OIO 1.35541!-00S 

Tocal 2.0~&008 4,004SE-004 

ke.Cep'Or llshor_(:bild STACK2 1ir_erisk_iah1le Arsenio s.•me.oos 4,9490£.003 

Reocp<or no~>e< _ drlld STACKl inl&kc_r:risk_aa Arw:nic 2.2483E.007 S.8606E-Ocl3 

R...,..,r r.wt_ct.ilcl STACKl mtab _ crisiU>«( Atlaltr;; OOOO ~ o.ooooe.-

Receptor t'ish~:r .. ehikl STACKl inuk.o_crisk_chi<lk Ar11cn~ O.OOOOE+OOO O.OOOOE+OOO R- r.m.r_cbllcl STACK2 intakc_.::risk_dw A11Cak 9.1216£-011 2.3984s.D06 

Rtotpoor n,..._cbilcl STACKl iNake_crisk_eaa ArKRiC 0000~ 0.00001!+000 

Receptor ll!ber_cbilcl STACKl inukc_criskJlAh Atllenirc l.S942E·OII 9.4SOJC·007 R- (ISba- dllld STACKl intokt_criJI:..mlllc ArscUe OOOOOC+OOO O.OOOOE+OOO 

Rccrptor fid>cr_cbilcl STACKl imk:e ... ctisk.,.port Arsenic OOOOOE+OOO O.OOOOE+<JOO 

Rcccp&or llJber_cbikf STACKl intakt_erisk_toll ArSMk 1.8969E-o08 5.!77)1!-004 

Toca.l 2.9165£..007 1.1331£.002 

Re- fiollu_d!ild STACK2 air_crisk_inhale BcryUiwn l.OS42e-o08 7.4ZlSE·OOl 

Receptor li.J.ber ... cbiW STACKl intak.o_crisk_•c !luyllium O.OOOOE+OOO l.29S0Jl..OO) 

Reccplnr riSba_du'ld STACKl !mate- criJI:.. bet( lkoylliu:ft OOOOOE+OOO oooooe.-

R- fither _child STACK2 in&Ue ... c:risk_dt:;ck Bcryllit.1a1 O.OOOOE+OOO O.OOOOB+OOO 

R- fiohe< ~ild STACKl inukt_eristc_ctw ll<oyl6um O.OOOOBOOOO 1.49l9E-007 

Reccplnr r.-_dlild STACKl iobk•_erist_cgs lld)11ium O.OOOOE+OOO O.OOOOE--«JJ 

Receptor fi!lh«- child STACKl inlakt_crisk_nsh Beryllium O.OOOOE+OOO 1.!2721)..007 

Receptor !lsb«- chile! STACK2 Intake_ crislcmilk Bccyllium O.OOOOE..OOO 0,0000&+000 

IRAP·h VIew - ~~~ 

-- --- --~----- ___ .... _ , ... ___ , ..... ~ ........ ---... ·----- Fed 2<1492 P. 11 

VES 007750 
PATHWAY RISK BY COPC Dste : 1 012612001 

:...;:1"\L ~T•"• L IH\.:f',O.:;J 

Pl.< i! O~ .fl~;/.1 :1..' "':: ...... (' "" "',•,:. ~ Cl :r. ·• c. !u:,~~, l: !i lll l\l i 

~ roo~>c<_cl>ilcl STACIU ....... -crisi<..J>otk o..,.n;-... O.OOOOE.OOO 0.00006._ 

R«cptot ftohcr_<hild STACK2 incako_crisk_toil Beryllium O.OOOOE·,_ !.0971 E.003 

TOCl l J.Ol42E-008 9.Sil9e-OOJ 

Rrcopoor lbhet-cbtld STACKl ai: _ cri'sk _inba>k Cedlnium S.7119E-00t 1.8514 E.()(ll 

R«cp!Ot ri4:her_chikl STt.CK2 in.,h_crisk_as Cadmi~.e o.ooooe ... ooo 0.00001!.+000 

R_.,r fiJII<:r _ c:ltUd STACIU lnlll<t _trill<_ beer Cadmium O.OOOOE+OOO ooooe~oo 

ltctcplOt 

n __ cbild 

STACK2 httake_cri!k_c:hk:k C*'miwn O.OOOOE.OOO o.OOOOE+OOP 

Receptor ftJbor_cbild STACK2 intf.kc_crisk_dw Cadmium O.OOOOE+OOO O.OOOOE·O.OOO 

~· A _ _ d>il4 STACIU i:atake ~ri.s:k_CJ,p Cl4mtum O.OOOOE+OOO OOOOE~ 

~ lltllor_cbild STACKl intake_ criskJ\Sh Cedlniln O.OOOOE+OOO O.OOOOE._ 

Receptor nahcr-dtild STACKl inllke_~risk milk Ca<miuna O.OOOOE+OOO O.OOOOI'l+OOO 

~ fitbrr- cbild STACK2 , .... _cn.k_pott Cedmt.m O.OOOOE+OOO O.OOOOE._ R- thhe::r_cbild STACK2 intakc_uist_,oU Cadrni~m O.OOOOE-+000 O.OOOOE._ 

Toea I 5.7129E-008 1.8Sloi'fAl02 R- fl&bcr_dtild STACIU air- crict_ iDhak C'brilmicm. ho,ava}eol 1.1271 7 1.06MIHI03 

Receptor f4bcr _ cbild STACK2 iMike_cr~aa Chromiun>., houvti<ot O.OOOOE+OOO 5.5401 E-004 

Receptor Rtbcr_cbild STACK2 intake_ cri:sk_ bcc.r Chromiwn, hcuvaknt o.oooot .. ooo O.OOOOE+OOO R- lblK.-d»ld STACIU ........ _<ri<k_cldolc 

Cbtomi=, ~-· 0.0000£+000 O.OOOOB._ 

Rrcoptor filh." _child S'TACK2 intlte_erUk_dw c:twom«mn. hcuY~Ient O.OOOOE<-000 2.0276E-007 

Rccep\Or l'iaber _ c:hi.ld STACIU intake_crisk_egp Chromium. htxavaleDt O.OOOOE+OOO 0.0000£+000 

R<coplO< r.-_m;ld STACKl inu.t._c:riskJlSb Chromium. lwnvaleat O.OOOOE+OOO 1.19&411-008 

'R.ooqJtcr Rsher_chikl STACK2 in,.h,..crisk._mUk Chromium, huvaknt O.OOOOE+OOO O.OOOOE+OOO 

R,..PJOf tlJhet- ciOid STACKl intde_crisk_potk Cbromillm, heuva..tecu o,oooo£+000 .OOOOE ~ 

Rcccptz>r fitbcf-dtild STACIU il':aute_trisk_IIOU Chromi<m, bcxova!mt 0.0000£.000 3.>100211-005 

Totel 1.527 1 E.()()? 64S7F~oo3 

Receptor fube.-- child STACK2 air_ erid,-_inhl)i!! Lotd 0 00006+000 0.0000£+000 

------·-... - ··- --·--.. ·-·-----·- ed24~i3" · IRAP--h View ?ago 12 

VES 007751 
PATt!WAY RISK BY COPC Pat• : 1 0126i2007 

t1 11.1 ' IT•\· t•:II.G.!l'l ;~ '>~ (;(!~) C'()l -{<l •'(lili ',',','\~ ,,l , , ' l Ct.'KI'/l i>',.;_ QL()" ,L Nr R- fidlcr_ch;)d STACI(l iat:Ue_c:risk_aa: lad O.OOOOE..OOO O.OOOOE<OOO 

' Roceptor fi~er_child STACK2 nltak,_nist_bcc:f Lt:~d O.OOOOE+OOO 0.0000£+000· 

R- filhcr-_ehild STACK2 lru•kc m~chidc L<od 0.00001)+000 O.OOOOE+OOO 

R«ofKK< fitf>er _Mad STACK2 iruake_eristt_d\o.o Lead 0 COOOE..OOO O.OOOOE+OOO 

Re~~:ep1or nstwr-child STACK2 imt~ cr st._cus L<od O.OOOOE<OOO O.OOOOE+OOO 

~ filba-- cbi)d STACK2 i!t~ke cri.U:_Iiih IAod O.OOOOE+OOO o.oooos--ooo 

Re~~:eptOr ftshn _ chiid STACKl intake_ uist_mJI4c: lad 00000£+000 O.OOOOE+W<I 

1\otq>ro< fiihc:r_ebild STACK1 inlakc_c.risk_pork lA ad O.OOOOE+OOO 0.00008+000 

~ .. fisha- clUld STACK2 Ulul<e _<risk _soil IAad OOOOOE+OOO 0.00008+000 

Toc:al O.OOOOE..OOO O.OOOOE ... OOO 

1\ocepl<l< fiWr_child STACK2 k_crilk ba ~ Mercuric chk»ridc O.OOOOE+OOO !.39141J,.OO' 

~ Rsllcr_chold STACK2 iNakc _aisk._q M..-...i< <lllorido OOOOOE+OOO 1.8359)!..()01 

R.ecoprOr r&t~her child STACKl in~.ake crist bcer M::tc.uril: ctllorkle 0.0000£+000 0.0000£+000 

Rocep10< fither_cltild STACK2 . intoko_crlsk_ehidc Mucuric chloride O.OOOOE+OOO 0.00001!+000 

1\00<p'.or 

fl _ _ duld 

STACK2 ........ _......._clw Mm:uric c:hJoride 0.0000£+000 4 91106-006 

Ro<optor n;her- child STACK2 int1i.e _ criJk.. e"s Mt<Wric ch!O<icle O.OOOOE•OOO O.OOOOE->000 

Rccep<or nahcr_dtad STACK2 lnu.ke_crisk_nsh Macuric ctllori!Se 0.0000£..000 0.00001!->WO 

R ........ n.__ct:iJd STACK2 ...._c:rist_MUk Mm»ric <hl<lriclo 0.0000€+<!00 o..ooooe+ooo 

Receptor tithcr_ehild STACKl int~ _c:riSVOfk Mercuric c:blorMk 0.00006•000 O.OOOOE•OOO 

1\oooptor l'l:tber_diHd STACK2 lnt:akc_erisk_soit Mtcc:wie d'llorldc OOOOOE..OOO J.7327E-00l 

Told M OOOE..ooo 2.4234£.002 

Rcoeptor lilhu_chikl STACK2 tir_orltk_inh,lo Mercury O.OOOOE+nClO 8.709913-00S 

Tot• I OOOOOE+OOO 8.70991!-008 

~,., liolt<r _ driJd STACK2 lntUc,_,cri*....•c Mochyl m••••"7 OOOOOEtOOO 2.8ll6E.Q03 

R.cetptor fither_drlld STACK2 hulke_crisk._bcef Metbyl .....,..l}' O.OOOOE+OOO 0.00006+000 

1\oooptor rtther _child STi.CKl io.U.e_crislc_ehtok Mdl>yl"""""l' O.OOOOE+OOO 0.0000£+000 

IRAP·h VIew -·- - ·-··---- ..... ·--·····-.. rec N.r~4--- ·-··-

Page 13 

VES 007752 
PATHWAY RISK BY COPC 0.10 : I 012M007 

._:, :,,_,.,,,-, ~, -·:-•~ ___ .,.,-'. ·"'"L -o":..:.~ot>.:.<.."-RO 

C-.l"o,, t { •<':ll'. UJO...IIL '\J 

R«q><or nmu_child ST .. CKl intlk.t_criJk_dw Mc:lhylmercwy 0.0000&-'000 2.6407£..006 

R<ccplor llthcf _child STACKl ineakc .. nfJk_eap Methyl mercury 0.0000£+000 O.OOOOE+OOO 

Rccoptor fi.sbe.r_c.hild STACK2 inu.ke ... cdak_Osb Mctbyl mercury O.OOOOE+oOO 3.5317£..()01 

RecepOO< 6thct-child ST .. CK2 ir~take Cfb _nulk Melhyl mffcory O.OOOOE+oOO O.OOOOE+OOO 

ltt<:eptor fishct_ child ST .. CK2 lnW<e_cri1k_porlc Methyl mercury O.OOOOE+oOO o.ooooe ... ooo 

Jtc<cpeo. fiShu_cbild STACKl iooake_crislc_..,l Mc:lhyt """"'Y 0.0000£<000 3.J7S6E-OO< 

Total 0.0000£<-<JOO 3.56938..()01 

llccepiOf fishct_t;:hild ST .. CK2 air ctWt: inM~ r .... coo.l.l.7.a- O.OOOilE-l«ll O.OOOOB>-000 

R-r fishd_cb:ild STACKl iollke_crf*_.g T....COO, 2,3,7,3- I 1114SE-008 1.!6SSE-00l 

Reuptor fithcr_c:hiJd s-r .. CK2 intalc:e_cdsk ... bed' Tencoo, 2.3.7,8· O.OOOOE...OOO 0.0000£+000 

Rocq>tor 

r __ drild 

STACKl ..... _crislc_dlicl< TctnCDO,l,3,7,1- O.OOOOE-+000 O.OOOOE...OOO 

Receptor n.""_drild STACK2 in.take_cdsk_dw TerraCOD,2,3,7,3- 1.90366·012 1.80881!-007 

R«<ppor .fioloa-drild STACK2 ialake_criol; __ T....COO, 2,),7,1- 0.00006...000 0.00006...000 

R.eeeplOr ft~hcr. child STACK2 intake_"'IJJ( ... fim Tctr.CDD, 2,3,7,3- 9.19'2 !£-<JIO 8. 7J44E-OOS 

R«q><oo r.-_drild STACK2 illl:&kc_aUk_milk r .... coo. 2.3,7,1- 0.00006+000 0.00008-HlO? 

Rec:eptor fishoc_ child STACK2 int3kc _ crisk _port Tco.CDD, 2,3,7,1- 0.00006+000 0.0000£+000 

Receptor titbtt ... child STA.CKl ""*•-c:rlok- "'~ Tett.CDO, 2.3,1.1- 4.9JS I E-<l09 6.S417E..()C)4 

Toul 1."2AE-<l08 1.9078E..()03 

Receptor tlshu_c:hlJd STACK3 air_ tiriak,__iohale Ar$Cnic 5.3<03E-<l08 4.!298£..()0) 

R«q><oo (lJbct_drild .STACIO mc.u_c:rlok_., Aromic 2.1942E-<l07 5.719.£..003 

Receptor fitbtr_child STACK3 intakc_trisk_bee( Arsenic 0.0000£+000 O.OOOOE+OOO 

R- fbhtr ... child STACK3 io.,..._crUk_chicl< .......... 0.0000£+000 0.0000£+000 

Reccpto< fiJ.bct _ ebikl STACK3 intako_orisk_dW Aracnic 8.9018E-011 1.l406E-006 

Rccq>tor fithtr _ ch:il4 STACK3 intakc_c:rick_cw Amni< O.OOOOE-+000 O.OOOOE-HlOO 

~ rut.cr-child STACIO inmte_crisk_filf'l Ancoie l.S076E-<l! I 9.2226£..007 

Rtoc.ptor fid>ct _ ehlld STI\CK3 iotate_crisk_mllk Artmic o.ooooe•ooo O.OOOOE-HljlO 

... --- IRAP4'1 Vitw F«124'195 Pago 14 

VES 007753 
PATWWAY RISK BY COPC O.te · 1012612007 

i~;_o~(..l '' lR: _-,,. '•'\R •,1\ . l •·' l ~ ;':•.' !•'1',;, 1' :'f' '() '/,, T.Jl i•l I A.0:1\.,J 

(.',', C.t ~"' (;,t,(JI If NT 

ReCltfl40r tither-dl.ild STACKJ intake_crlak_pOtk Artenic O.OOOOE+OOO O.OOOOE-1-000 

R<ocplo< fiSher- <hild -5TAC'K3 i:nc:at. _ criat _soil A:actUc I.SS 121l.()()8 OS16~ 

Total 2.9146£.001 I.IOSSE-002 

Receptor fieber_chikl STACK3 air_cri1k_inhtk Beryllium 2.9W61!-008 7.2446E-003 

R«C]>IOr fitl>e<-chi kl STACKJ intake cr~k q Beryllium 0.0000£>000 1.26lRE-003 

~ fooho:<_cbild STACK3 int>tc- erial<-buf Bs..'}'llillll o.ooooe+OOO 00000£+000 

R.._r n.ber_dllld STACK3 intUe_crlsk _Qick lletyll!wn 0.0000£+000 O.OOOOE+OOO 

Receptor nahcr_tb.Ud STACK3 intakc_critk_dw B"YIHum 0.00006<·000 1.45998-007 

Receptor ftthrt:_chUd STACK) intake_ crisk_ eggs t:Je:ryllium OOOOOD+OOO O.OOOOE+OOO 

R- fasba:_child STACK) iPtatc_crit.k_ fish BcryiEwn OOOOOE>OOO L7 n~;-oo7 

R- fdt>cr- cl>lld STACKJ int2ke _ cril:k_ milk lk<yllio:n O.OOOOE+OOO O.OOOOE->000 

Reoq>10r fi!lher_child STACK3 int#e_crlt:k_J)Of\ lkryiUW! O.OOOOE-1-000 0 0000£+000 

Rccoptor nther_c:bUd STACK3 inl.llce_crialt_wil Bccylliwn OOOOOE+OOO i.0707B-<J03 

TO!ol 2.9$06fl.008 9.$79. £-003 

R""P'C' IW>c<- dilcl STACKJ "" "ilk,_~ Codiniw:> S.SII7fl.008 1.11121Hl02 

Receptor n- mild -. STAC'K3 nl'llce criak_~g ~ .... 0.0000£-1-000 O.OOOOE-+{)00 

Reoq>IOf tbher_cbiid STACK3 II'I'Jko_crilk_beef Cadmlum 0 OOOOll+OOO 0000013+000 

R=piOt' fdt>cr_<hild STAOO int&lc:c_ criik_ ehiek Codm""" O.OOOOE-1-0011 0 00001;-1-000 

R- fdt>cr- dlild STAOO ..... _..._<lw c.dmium O.OOOOE-1-0011 O.OOOOE+OOO 

RectptOC' tis!'CC'_ddtd STACK3 nt~tce_cri.lic cw Cadmium OOOOO.ti•OOO O.OOOOE->000 

Receptor fidic:r _ cltlld STACK3 inteic:o_c:rbk_t1sb Cadmium O.OOOOE+OOO 0.0()00];-1-000 

Receptor ns~>er _child STACKJ !n•""•-crisk_o'Oilk CadmiUfll 0 0000~<{1()() O.COOOE-1-000 

R""P'C' ra~a_<hild STAOO inu.kc _ c:ri* _.,pod ~ O.OOOOEtOOO O.OOOOE+OOO 

R._ r.-_child STACIO lfltab_crisk_.soil c- O.OOOOE•OOO O.OOOOE+OOO 

To<al S.S637!;.008 1.8l i2B-002 

Reoepk>r fisher_ child S'rACKl air_erilk_inhlle Cttramlum, bc.xi\'A~ 1.490)E-007 1.03491!-003 

-~----- ·-···-·--- JIW>.fl \/low Feo ~-486 Page 15 

VES 007754 
PATIIWAY RISK BY COPC Date ; 1 Gf2612.00 7 

Ffl.il·':) :; 'ff\,\Rl":' '::_•J ~ I'!' T~ I'.':O'• I\J:'( 1::;1 ..:,:_ I UTA'.-1· 1••'"'"" 

r.·c·r ii l''.;" !J{JIIi N 1 

R=pcor fi£bcr- chikl STACIO iatake_ ttitk _ •a Cbtomiucn. hcun.knt O.OOOOE->000 l.<066E-004 

Reccp<Of t\&tlel'_cbi.ld STACIO int:ake_orilk .. boef Clvomitltll, heJUIV'Aiet1t 0 OOOOG+OOO O.OOOOE+OQO 

R=poor C..ober _child STACIO lotake_c:ri:lk_cbkk Cbtomlum. hexavalcru O.OOOOETOOO O.OOOOE+OOO 

R«<r>«< r.wr_dlilcl STACIU ioub_aisk,..dw IJwomium. htxavllmc D.OOOOG+OOO 1.97i7£.007 

R<,....,.. fi""'r _child STACKJ i.ntttke_crilk_q gs Owomiwn, bcxaVJJent O.OOOOE-HIOO O.OOOOE+OOO 

Receptor fi.s.her _ chikt STACKJ int&.ko_tfitk_l'i.sh Chromitm, ht OJ~t :: t O.OOOOE+OOO 1.169lt!-008 

~· '"""'- ohilcl STACIO intake_ Qisk _milk Ov-omhm, btxavalct¥ O.OQ00£.000 0~ 

Rccopw r-. c~~ild STACKJ iolal<c_crilt_,..t o-.;-. ....... ,.,. O.OOOOG+OOO O.OOOOE+OQO 

Reooptor fisbcr_ehikl S'TACKJ intakc_crlsk_soil Chromium.lleAILvalent OOOOOG+OOO J.JJsJB-oos 

ToW 1.4903&007 1.6090!!.003 

1\ecq)oor n.oo _child STACKl air_ erisk_ mbalc l..ctd D.OOOOE->000 OOOOOE+OOO 

Recq>o>r fisf\er _ chik! STACKl int:Ue_criJt_., Lad D.OOOOE->000 D.OOOOE+OOO 

R<Oq>!Or fi _ _ eb;)d STACK3 iniakc_crtsk_bcef l.o:od O.OOOOE+OOO 0.0000£+000 

RottJ*)r fu\er_chUd STACKJ illlakc _ cri.tk_ cbick Lcod D.OOOOG+OOO 0.0000£+000 

Receptor fiW._child STACKJ iotakc-_ c:ti.R_ 4-w l..ctd O.OOOQEo(JOO O.OOOOE+OOO 

Rooepoor 

fi _ _ cbild 

STACKJ inlalcc_criAt_ou• Ltld O.OOOOE+OOO 0.0000£+000 

Rcco-ptor fishu_chnd STACK3 lntal<e_crislt_fub Lead O.OOOOE+OOO O.OOOOC+(lOO It- r.-_cruld STACKJ iotalco_criJI<_,,uk Lead O.OOOOE+OOO o.ooooe-.ooo 

Recq>o>r fiohcr- drild STACKJ incU.e _ abt._port lad 0.0000£+000 O.OOOOE+OOO 

Rctrptor tbhet- chikl STACIO inta:<e_trilk_soil Lead 0.0000£+000 O.OOOOE+OOO 

TOI&I 0.0000£+000 O.OOOOE+OOO 

R""l""' llsloa- cli;Jd STACKJ u _ cri<lt_iohale 

Ma<..ric ·-

O.OOOOG+OOO 1.34901!-004 

a...,,.. ,,. ..... _child STACKJ KttUe_crisk_a,g Merwric ehlofid&: 0-0000£+000 1.nm.oo2 R- fblltr_ child STACKJ lotalco_criJk,_beef Me..uric: eblatidc O.OOOOE+OOO 0.0000£+{)00 

Reccp<O< (nhcr _child STACK3 intake_trid:_chict Mcrcurlc. <.bloridt O.OOOOE+OOO O.OOOOE+ODO 

Rooepoor r.-_ebild STACKJ iDW::e_crilk_dw M.,...;echloride 0.0000£+000 "'9234£.006 

_.__. __ , __ ...... JRAP•h \/low Fed 24497 Plgo 16 

VES 007755 
PA'IllWAYRISK BY COPe Date : 1012812007 

!II :-1. 11 · ·.!, < .. t'·l!,:.<t ',~· ~·;:, ,:,-, . • , ·,;, 1 .. CT1\ f"l~AI ,.,.,,.:_ ·,~· 

·'"~~ !- "I ·_..., ~.CI L '• 

RecepOO< fishc:r_cbild STACIO irJt;ake_erilk_eass Mctcuric d\IO<icle 0000 8~00 U.OOOOE+OOO 

RcccptQr fl>l>e1_ child STACIO intake_crisk_fisb Mem.rric chloride O.OOOOE<iJOO 0 00006-tOOO 

Recepocr fish.tr_chlkl STACIO intllc_aislt_miU: MtKuric chJondc OOOOOI!<iJOO O.OOOOE-+000 

Rtcepto.r ftsbef _c!li ld STACK! inW.e_cridc_pork Mcrc.u.ric dllotide o.ooooB•ooo O.OOOOE+OOO 

Rtceplo< r~j:h kl STACIO mtie _ c::ri&k _ 1011 M<Jturi<chlocl<k 0.00008-tOOO U5l1 6-00l 

To<al 0.00005+000 1.34196.002 

Receptor rw.u_ehlld STACIO a.ir_triak_lnbale Macwy o.OOOOE+OOo 4078 E~08 

To<al O.OOOOE•OOO 8.4018&008 

llcceptor fosbcr_dlllcl STACK) intakc_crisk_ag l~yl mcroury o.OOCOE• OOO l .7279E-00l R- lisl>e:- dli lei STACKJ intab _ crid: _beer Mcd'l)i ~ O.OOOCE+OOO O.OOOOE'-000 

1\cGC:ptof fi.&Mr _ chJ ld STACKJ io.lake_c.rlik:_ chick MtO!yl """""Y O.OOOOE+O<JO 000006+000 

Re«p<<>< l1lber-do I lei STACIO lntake_crisk_dw Mclhyt Jotr(q)' o.oooos•ooo 2 6065 E.-006 

R- n.sbu_ctlild STACIO ""'k<.. aiJI<... •u• Mcdlyl "'"""'l' 0.0000£1000 O.OOOOE.OOO 

RecepiO< fisher_chlld STACKJ n~tke c:rilk_lls:h Methyl mercury O.OOOOE+OOO l.49t9E-00 l 

Reccp<o< lishot_dlild STACIO ln.W:e_crid:_mUk ~I"""""Y o.OOOOE<OOO OoooaE+OOO 

Rccq:rtor l'is.\er_ctukl STACIO iulHe _ crisi<_port Mclllyl mtt""'Y 0.00000+000 O.OOOOE-tOOO 

lleceptor Oslltr_child STACKJ iotako _ crWc._ soU Methyl mc:rcuty 0.0000£->00U l.269SE.OQ4 

Toul O.OOOOE£000 3.5225~1 

Reeeptor fish.et_d:likJ STACK3 air_«llkJnhlllle r .... coo. 2,J,7,1· o.ooooe.ooo 0.0000£•000 

Reccp<o< fosber_dllld STACK3 laukc_ubk_sa Telt1CDD,l.J,7.&- 1.1400~1 l.l3%E.OOJ 

Rocep<or f.sb«_dlllcl STACKJ intlb- crisk- bod' T....COD, 2,),7,8- 0.0000£+000 0.0000£.000 

Re«piO< flsh«_dlllcl STACKJ i.nllkc_crisk_dtlek TeiriCDD, 2,3,7,8- U.OOOOE-tOOO O.OOOOE+OOO 

Roocp«< 6shot- child STACIO inutc_crist_ dw T....COO, 2.3,7,8- 1.&6 13~ 2 17686£.007 

Rt:ecpt« lbllor_chlld ~"''ACKJ inD'kc_abt_qp Tce:taa>O, 2,3,7,8· 0.0000&>000 0.0000£+000 

Rocq>tor llsher_child STACKJ mke_erdl:_fish 'fctnCDD, 2,),7,8· 1.98788-010 a.!AOJE-00! 

Recos>"" 6,.._ehild STACKJ il'!lab_crisk_milk TcmCDD. 2,3,7,8- 0.0000£-tOOO 0.0000£+000 

------··--·---"" __ : IRAP-nView Fed 24C98 .Pa;e 1i 

VES 007756 
PATHWAY RISK BY COPC. Dale : 1 0l2612007 

f' • '(·' -;o i_: J:,I :,, ·- ,)f .. ,;..-, U •. J ,\ ( f<,<7•\J.iL 

:_:,.:,•. ,_t+< r: -," :.lV.l · •• NI 

ReotplOr fi&tte:; _ chlld STACKl Intake_ cris'-Jiork TcU.CDO,l,l.7,$. O.OOOO~l«<!O O.OOOOE+OOO 

'Reccpa tuh<r_dlild STAOO intlh_ai:sk_tOil T....COD, l,3,7,S. U lS46-009 6.<1()ll£.()04 

Tot•l 1.71l l E.OOS I 8~ 8-00J 

Reoeptor fllh~r (! iJd STACK4 oit c:risk,_ir~haJe Ar~mjc. 1.80036-008 1.6l82E-00l 

ll«q>O>r lishcr_dlild STACK4 ..... _criol:_ •• 

- 4.121'6-008 074SE~l 

Roc- lishcr_child STACK• nlak~ aist_bc f Araet~ic 0.0000£+000 O.COOOE+OOO 

1\ccc.ptor fBber_chUd STACK4 Intake:_ triO;_ chick Arunic 0,00001!+000 0.00()()5+000 llfiJ!Icr- ciUJ4 STACK< t.rnate_crisk_dw AriMit 2.1$141l-()IO S.6S69E-006 

R-- fisttd_chi)d STACK< itltate_crist __ cgs - O.OOOOE+OOO OOOOE~ 

Receptor fisher_ child STACK4 lntake_crist_Rth AnttMe- 3.41736·011 2.22\IOE-006 

ll«>optot rrsber _child STACK4 intAke_ crisk _milk Artmic o.ooooe.ooo O.OOOOE+OOO 

Roccplor fiDcr_cbild STACK< lotoi:c_crisk_podt 

- . 0.00001!>000 OOOOOE+OOO 

Receptor tisbcr_chlld STACK4 Intake_ orisk _ aoil Aneate l.S90 I 6·009 9.7988E-OOS 

Total 6.31088-008 2.1086E-OOJ 

Rt«pom _child STACK4 tir_aist_iahlfe B<rylo- J.OOQ£.003 2.44lJE-00l 

R.egeptor foShcr _child STACK4 n~ eril~•a Bcrytliom O.OOOOE·•OOO l.3988E-olk 

ReotpiOr fisher_ child STACK4 inCU:c- crisk_ beer Beryllium 0.00008>000 0.0000£+000 

ltoccJ>Ior 6sb«- cloilcl STACX4 ..... _crisl<,_drid< 8c<yliNm O.OOOOE.OOO OOOOOE+OOO 

Rtttptor fish«_ child STACK4 in.tak:e_crisk._dw Beryllium 0.00008.000 l.Sl84E-001 

Rcceplor fisbc:r _cbUd STACK4 inl&ke_crlsk..,caas Beryllium 0.00008•000 OOOOOE+OOO 

R«q>oor fiober_c.hild STACK4 mW:c_<Nt_nsh B<ryllhlm 0.00005+000 4..l099l;-007 

R.ecept« tisbot_cbUd STACK4 lnu.b: _ crisk_ mi1k Buyllhlm O.OOOOE+OOO O.OOOOE+OOO 

Reetptor ~S cr (hild STACK4 •ntake_cdlkJM)r\ l10ryllium 0.00006<·000 O.OOOOE+OOO 

Rt«pom !i.$bcr_<bild STACK4 in1alce_criJk_10il Buylliom 0.00006+000 2.0764£-004 

Tl><•l I OOCIE-OOS U906E-00l 

Roc:epCot fisher_dtild STACK• alr_crisl(_inhalc Cadmiwn 1.87991!-008 6.092313-00J 

IRAP~VIow --.,..-~------

9S P19C11 

VES 007757 
PATHWAY RISK BY COPC o ... : 10/2612007 

H rr_ Lf ·~ ; .r•,-.<,•, :;:; .. ·:• r•,•,-;.,.1,.,,v 1_.__:<• ( ny ;, , ro;;.t 11''""'KIJ ,,·•O:: ••:o.~ ::;K c;UtJ "ifhi 

Receplor fishtr_c.hdd STACK4 in1.1ke_cr1sk_ag Cadmltm ·o.oooon+OOo O.OOOOE+OOO 

~ flsbn_c.t.ikl STACK4 lolakc _ criA;_ bot! Cadmium 0 OOOOilo!OOO O.OOOOil+OOO 

Recf>l)tor tlshcf_t:.hild STACK4 inukc_ctisk:_chick Cadnlium 0.0000£+000 0.00001!>000 

. ..., ... fisbtt _ ehUd $TACK4 Ur.Ue_crisk_dw Cadm.ium 0.0000£-<lOO 0000~ 

"""'"'"' f\sMr_ehUd STACK4 itrtlk.e_crisk_eiJit Cadmi\101 0.00001!+000 O.OOOOE+OOO 

R<cq!oor lisioa- dlild STACK4 inlil<c_crisl:_liJb CadmM:n OOOCOE+OOO O.OOOOE.OOO 

Receptor n.t.._ohlld STACK4 ;ntake_cds:lc_milk Cadmium O.OOOOE+OoO o.ooooewoo 

~ 6sllcr- dlild STACK4 iWkc_cr..st_port Cadmium 0.0000£+000 G.OOOOE-+()00 

Recep\Of Oshef_ child STACK4 lnllke_crfft_to11 Cadmium 0.00006+000 0.0000!>1{)00 

To<> I 1.&799E.OOS 4.09llE-003 

Recqnoc nm:f_c.hi~ STACK4 air ;fitk _inh• ~ Chromium, bcxtvalel'\4. Hl242J!.()Oa 3.4890""004 

·- lUbe:- dv111 STACK4 i15:1Do_crisk_., OuonUum. llcx•val<Dt O.OOOOE•OOO 1.01)8£.004 

Recepto< fisher_ ehi kl STACK4 inW.o_crisk_betr Cllroml.um, bcuvaten1 OJJOOOE+OOO O.OOOO!l•OOO 

R=poO< fisbe!_clu111 STACK4 inolct- Cf'.sl<-dlick Cbromium. hc:uftlenl O.OOOOE>IOOO O.OOOOE-+()00 

Receptor fisher_cblld STACK4 iotaU_c:rist_dw 01t0fnitm. hexavalent 0.00001!+000 4.78llE-007 

·- fib<_cru111 STACK4 ....,.._.,._."' Cla'on.'rium, hcnvaJ,e-(1( O.OOOOC<OOO O.OOOOE.-"000 

Rc.ocpto1 amcr_ehild STACK4 intako_crisk_lilb CMornl\ltl\ helt1MI$Jn O.OOOOB+OOO l 8266E-008 

R""'"« fishcf_ebiJd STACK4 ia!Xc_crist __ rilk Clm>miom,- O.OOOOE+OOO OOOOE~ 

Rtotptot ~.thcr h.ild STACK4 intaltc_eritkJOrk Chromhwn. htnvakw O.OOOOE•OOO O.OOOOE+-000 

~ fo>h«_dlild STACKol m..lco_ c:risltJOO ChrunUunl, ........, ... O.OOOOE+OOO 6.0S<6-006 

TO\al ~2e.oos 4.S72JE-004 · 

._ fi _ _ c!Uid 

STACK4 air_CT'i*_mblle L<od 0.0000&+000 O.OOOOE+{)OO 

Receptor fisher-dlild STACK4 inteko_crislt_a-a l.cod O.OOOOil+OOO O.OOOOE-HXIO 

Rrtq)IOf fisher-c:hlld STACK4 inrat._crisi<J>«( L<od O.OOOOE+OOO OOOOOE<-i!OO 

Receptor ttsbcr_chJld STACK4 ineakc_ crist..,chid. Lead O.OOOOE+OOO O.OOOOf+OOO 

Rcc:cp!Cr liollc<_ dtild STACK4 ialolco_<ri!l<_dw Lnd O.OOOOE+OOO O.OOOOE+OOO 

IRAP-h lllow ----- --- -· .... -- ---- Fed 24500 ~e 19 

VES 007758 
PATHWAY RISI< BY COl'<; Oat• : 1 Of2612007 

" '~I -::::, ,·~f.._•,.•,j: J .• ;,OI.-,';.',• ~,_ .:. ::~:!;•,_, . ., '-,.':~~·.~~~-<(... 

Rccq,tor 6shu_cblld STACK4 iiUitke_crillk_ca.&t l..clod 0.0000£~00 O.OOOOE+OOO 

Rcoep ... ruJ>u_doll<l STACK4 iA.U._aislr._rOih l..c>d 0.00001!.000 O.ooooE"-000 

R- fishtt_mlld STACK4 intaktl_crisk_mitk lc..S O.QOOOE.OOO O.OOOOE-<-000 

Rccq,tor fl$her_chUd STACK4 intake_erisk_pork Lead O.OOOOB+OOO O.OOOOE+OOO 

II«:< pOor flsbtr _child STACK4 il.'ltlke_aisk_,oil \,cad O.oooo£.000 0.0000£"-000 

To<al o.oooon•ooo 0.0000£"-000 

Rc.c:cptor tuhcr_chikl STACK4 uir_e:risk_inhJlc M~tcuric ehlorldc ooooe~o •.znse.-oos 

R....,..r fisher_ child STACK4 1n"..tke _ cri$k._ 11 Mu<urie chloride o.oooos.ooo s.nosE-OoJ 

R- fi$h«- Clhlld STACX4 lntW_crisk_b«f Mercuric ddoride 0.0000£+<100 OOOOOE"-000 

Rcteptor fu:bcr_chikl STACK4 intake_crisk_chlck Mcn:uric: chloride O.OOOOU•OOO 0.0000£+000 

Re- Rshcr_chiJd STACK4 it'llake_cri.dt_d.w Mercuric e.bloride: OOOOE~O 1.2Zil&005 

R_ .. tlshtt-child STACKA ---- ~chkride O.OOOOii+ooO o.ooooE+OOO 

Rtc:eptor fuhet_cbild STACK4 iAtab!_<rilll.fdh Mtrcuric chloride 0 OOOOE-+000 O.OOOOE+OOO 

ReceptOr ti$b.,._cblld S'rACK4 lntake_erilk_miflt Mcrcwic d tloride 0.00006+000 0.00006+000 

"- fubcf' _child STACK4 !.Qbkc-c:rUk _potk Mn'CL~ric dlloride 0.00006+000 00000£+000 

Rteep!O< 6sher_cblld STACK4 UnUe_critk_aoU Mcm:odc chloride 0.00006>000 t.669ZE-OOJ 

Total 0.00008+000 7.0444E..00l R- fi$h<r _dilld STACK4 aW_c:rislt_itlblle MctaliY 0.00001!<000• 2-607lE·008 

Tol>l 00006~0 607l£.00~ 

Receptor fishC~r chUd s·rACK4 i.nt•ke:_ crisk _ •& Mctbyl meroury O.OOOOE+OOO 9~5E·OOA 

Rcecpkn fioh«-cblld STACX4 U.tm_orisi<_h«f Mt'lll)1.......,. 0.0000£<000 O.OOOOE+OOO 

~ fisher- child STACK4 iata);c- '"*-d\ick Mtdlyl m=ury O.OOOOE.OOO O.OOOO.E+OOO 

Receptor fi>h<r_cblld STACK4 uke dw Methyl mercury o.ooooe~ o 6l0:0E-006 

RccCp10r fi&b«..<blld STACK4 imake_crilk...c&:l' Mctbylmtmlr)' O.OOOOE+ooO O.OOOO.E+OOO 

~ llshtt-child STA~ i:ntaD .. crisk: _ f.sb Methyl- 0.0000£+000 S 7112E..OOI 

Reeepco. &hw_child STACK4 lruake_oritlc_milk Methyl mercur;y O.OOOOE+OOO O.OOOOE+OOO 

_ _, \1ft - - -·-----·----- Fed 2.&501 Ptgo'lO 

VES 007759 
PATifNAY RISK BY COI'C Dale: 1012612007 

• () ': , 1 ,I -, -. • ·I ~ : ; ' •, ll • 01 "j!Fo ,.;,7A"'V 

CA' ... , rl HI-,.<; .I.; (,.I :t._N -

~eccptOt fishcr_chUd STACKA ntak~ criskJIOr\:. Methyl fllCTCUI')' O.OOOOP.+<IOO OOOOOE+OOO 

R"'"91oc fist...._thod ·STACK4 iotakc_a'i$.1c_toU Metbyluocmary 0.0000£+()00 9.8290£-00S 

T.,..l o.cooo!l • ooo 8.1'20lE·OOt 

Rtc:cptor fiibcr_c.:tl.ild STAC1<4 ait_et\W_inhalq TcoaCDD,l,l,7,8. O.OOOOE+OOO O.OOOOE+OOO 

Rocep1or 6sbtt_chUd STACK4 inal«-crisk- "' TdnCDD, 2,),7,J. 2.211llt;.009 2.2215£.004 

Rceop4o< fisbec_ child STACK4 intakc_aisk_ll>ecf TttraCOO, 1.),7,1- O.OODOe+<lOO O.COOOE+OOO 

bccptor fiall<r_chlld STACK4 Intake_ eritk __ chkk Totr1CDO, 2.l,7,8" o.ooooe.,.ooo O.OOOOE+OOO 

R.tocpi« fl.shtl' _ GhikS STACK4 lntake_cris:lt_dw Tct<oCDD, 2,),7,$. 4.45791!-012 4.l.l58B-007 R- fisi><T_dli'ld STAC1<4 incab_crisk_cas TdnCOO, 2.),7,1· o.ooooe •ooo O.OOOOE+OOO 

Rt:oq,lOr fish«_child S'fACK4 lnnke_erid:,.J'ilh 1'cttuCOO, 2),7,8· 2. 15l6C·009 1>'~1;; 004 

Roce~or fisher- c.hi\i STACK4 intake_erbk_milk TcoaCDD, 2.),7.8· O.OOOOE~OO O.OOQOE+OOO 

R«<f"" 

__ child 

STACK4 inW:c _aUk _pork Tct<aCDO. l,l,7,J. 0.0000£>000 0.0000£+000 

R.tccptOt r,h«_chHd STACK4 intake_crisk_soll T.....CDD, 2.),7,8· 9.S347541 10 l.l6SOE.004 

Tout S.l7841l-009 5,))818· 004 

RAP-ftVrtW F4d2'1502 Pogo 21 

VES 007760 
ATTACHMENT 3 

Onvx Environmenml Services Rolan' Ki!n a nd Fixed Hearth l.11r.ir1erators Human Heallb 

Rlsk Assessment Report 

VES 007761 
ONYX ENVIRONMENTAL SERVICES 

ROTARY KILN AND FIXED HEARTH INCINERATORS 

HUMAN HEALTH RISK ASSESSMENT REPORT 

Prepared for: 

Onyx EovirollllJCI\tal Services 

Sauget, illinois 62794 

Prepared by: 

Franklin Engineering Group, Inc. 

Franklin, TN 37064 

Revised 

October 2005 

VES 007762 
TABLEOF CONTE il'S 

1.0 fNTIWDUCtiON AND SUMMARY .................................................•.......................... l 

1.1 Introduction ..................................................................................................................... I 

1.2 Summary ......................................................................................................................... 2 

1.3 Quantitative Estimation of Cancer Risk ........................................................................ 2 

1.4 Quantitdtive Estimation of Non-Cancer Effects ............................................................. 3 

1.5 Acute Exposore (Directlllllalalion) ................................................................................ 3 

I .6 Modifications to Procedure ......................... .. .................................................................. 4 

2.0 FACILITY CHARACTERIZATION ............................................................................. 8 

2.1 Basic Facility Information .............................................................................................. 8 

2.2 Emissions Levels for Compounds of Potential Concern .............................................. 11 

2.3 Phase AUocation and Speciation ofMercury Emission.< ................................ : ............. I I 

3.0 Affi DISPERSION AND D.EPOSITION MODELING .............................................. 16 

3.1 Introduction ................................................................................................................... 16 

3.2 Modeling Emissioos Inventory ..................................................................................... 16 

J. 2.1 Potential Building Wake Effects ............................................................................... 16 

3.2.1 Modeled Emission Rate ............................................................................................. 17 

3.2.3 Partitioning of Emissimr.<.. ............................ .. ......... ............................................. I 7 

3.2.3.1 · VaporPhaseModeling ..................................................................................... l7 

3.2.3.2 Particle Phase Modeling (Mew Weighting) ..................................................... 19 

3.2.3.3 Particle-Bound Phase Modeling (Su~face Area Weighting) ............................. 21 

3.2.4 Wet Scavenging Coefficient ......... : .................................................... , ....................... 21 

3.2.4.1 Rurt~liUrban Dispersion Coqficients ............................................................... 21 

3.3 ISCST3 Model Options ................................................................................................. 23 

3.3. I RecqJtor Grid ............................................................................................................ 29 

3.4 Meteorological Data ...................................................................................................... 29 

3.4.1 Surface Data ........................................... : ................................................................. 31 

3.4.1.1 Wind Speed and JVind Direction ....................................................................... 31 

3.4.1.2 Dry Bulb Temperature ...................................................................................... 32 

3.4.1.3 Opoque Cwud Cover and Cloud Ceiling Height .............................................. 32 

3.4.1.4 Sr~rface Pressure ............................................................................................... 32 

3.4.).5 Precipitation Amount and Type ........................................................................ 33 

3.4.2 Upper Air Data ......................................................................................................... 33 

3.4.3 Processing of Meteorological Datn .......................................................................... 33 

3.4.3.1 Monin-Obukhov Length .................................................................................... 34 

3.4.3.2 A11emometerHeight .......................................................................................... J.4 

3.4.3.3 Surface Roughness Height ................................................................................ 34 

VES 007763 
3.4.3.4 

3.4.3.5 

3.4.3.6 

TABLE OF CONTENTS (Cont'd) 

Noon-Tim<' Albedo ............................................................................................ 42 

Bowen Rntio .............................................................. : ....................................... 42 

Anlhropogenic Heat Flux ................................... , ....................................... ....... 46 

3.4.3. 7 Fraction of Net Radiation Absor·bed aJ the Surfiu:e ......................................... 46 

3.5 Site-Specific Modeling Results .................................................................................... 46 

3.5.1 Air Modeling Res~tlts for Land Receptors ................................................................. 47 

3.5.2 Air Modeling Results f or Mississippi River and Watershed Receptors .................... 47 

3.5.3 Air Modeling Results f or tM Frank Holllm Lakes and Watershed .... ...................... 47 

4.0 

4.1 

EXPOSURE SCENARIO IDENTIFICATION .............. ~ ........................................... 51 

Exposure Selling CbaracteriZIIrion ................................................................................ 51 

4. 1./ Curretrt and Reasonable PnUnlial Future L<urd Use ............................... .............. 51 

4.1.1 identification of Water Bodies .................................................................................. 53 

· 4.2 Select«! Exp<:>sure Scenarios ........................................................................................ 58 

4.2.1 Adult and Child Resident .......................................................................................... 58 

4. 2.2 Recreational Fisher and Recreational Fisher Child ................................................ 58 

4.2.3 Acute Risk Scenario .................................................................................................. 59 

4.3 Identification ofLand-Based Receptors ....................................................................... 59 

4.4 Identification of Receptors for Water Bodies ............................................................... 59 

5.0 CHARACTERIZATION OF RISK AND HAZARD .................................................. 62 

S.l Generic Exposure Rate Equation .................................................................................. 62 

5.2 Consumption Rate ......................................................................................................... 63 

5.2.1 Air Exposure Pathways ............................................................................................. 63 

5.2.1 Food Expost.re Pathwrrys ......................................................................................... 64 

5.2.1.1 Types of Foods Consumed ........ , ....................................................................... 64 

5.2.2.2 Food Consumption Rate .................................................... : .............................. 64 

5.1.2.3 Percentage of Contaminated Food ................................................................... 66 

5.2.3 Soil Exposure P(1Jhways ............................................................................................ 66 

5.2.3.1 Soil Ingestion .................................................................................................... 67 

5.2.3.1 Dermal Exposure to Soil ................................................................................... 67 

5.2.3.3 Soillnhalatwn Resulting from Dust Resuspension ........................................... 67 

5 Waur Exposure Pathway.• ........................................................................................ 67 .2.4 

5.3 Exposure Frequency ...................................................................................................... 68 

5.4 Exposure Duration ........................................................................................................ 68 

~ Ave.sging Time ........................................................... , ................................................ 68 

5.6 Body Weight ................................................................................................................. 70 

ii 

VES 007764 
TABLE OF CONTENTS (Cont'd) 

6.0 ASSESSMENT RESULTS AND DISCUSSION .......................................... -.•.... -...... 7l 

6.1 Estimation of individual Risk and Hazard .................................................................... 11 

6.2 Quantitative Estimation of Cancer Risk ...................................................................... 7 1 

6.3 Quantitative Estimation of Non-Cancer Effects .................... : ...................................... 75 

6. 3. 1 Merc~try Fate and Transport Algorithms . ............................................................... 77 

6.3.2 App/icatil>n ofSite-Specific Fish Trophic Level ....................................................... 8/ 

6.3.3 Mercury Concentration in Fish ................................................................................ 83 

6. 3.4 Average Daily Dose of Dioxin!F~t ran TEQ .............................................................. 84 

6.4 Acute E:tposure (Direct Inhalation) .............................................................................. 84 

6.5 Estimates of Health Effects Associated with Lead ....................................................... 87 

7.0 UNCERT AlNTY IN HUMAN HEALTH RlSK ASSESSMENT ············---······- 88 

VES 007765 
Table 2-1 

Table2-2 

Table2-3 

Table2-4 

Table 3-1 

Table 3-3 

Table 3-4 

Table 3-5 

Table 3-6 

Tablc3-7 

Tnble 3-8 

Table 3-9 

Table 3-10 

Table3-ll 

Tnble 3-12 

Table3-1 3 

Table 4-1 

Table4-2 

Table 5-1 

Table 6-1 

'rable 6-2 

Table 6-3 

Table6-4 

Table 6-5 

Table 6-6 

Table6-7 

Table6-8. 

Table6-9 

Table 6-10 

Table 6-11 

Table 7-1 

Table7-2 

LIST OF TABLES 

Source Characteri ti c~ Required For Air Modeling ............................................. 10 

Combined Hypetbetical COPC Emissions From Units 2, 3 and 4 Incinerators ... 12 

Mercury Speciation Data for the Rotary Kiln (Unit No. 4) .................................. 13 

Emission R.~te Derivation for Mercury Species ................................................... 15 

Site-Specific Particle Size Dist.ribution ................................................................ 20 

Land Use Classifications for Use In Auer Land Use Analysis ............................. 24 

Auer Land Use Cla~silicarion Distributions for Assessment Area ....................... 28 

Seasonal Surface Roughness Heights for PCRAMMET Land use 

Classifications ....................................................................................................... 36 

Area Weighted Surfoce Roughness Height for Each Sector ................................. 40 

Determination of Site Surface Roughness Height Using Wind Oceurenccs for 

Each Sector ........................................................................................................... 41 

Fraction ofPCRAMMET Assessment Area Occupied by Each PCRAMMET 

Land Use Classification Type ............................................................................... 43 

Seasonal Noon Time Albedos for PCRAMMET Land Use Classilications ........ 44 

Determination of Site Noon Time Albedo ............................................................ 45 

Air Modeling Results for Maximum Exposed Resident... .................................... 48 

Air Modelillg Results for Mjssissippi River ......................................................... 49 

Air Modeling Results for Frank Holten Lake and Watershed .............................. 50 

Selected Exposure Pathways and Exposure Scenarios ......................................... 52 

Land Use I Land Cover Classes Assigned to Exposure Scenarios ....................... 56 

Exposure Duration Values .................................................................................... 71 

Caucer Risk for Recreational Fisher ..................................................................... 73 

Cancer Risk for Recreational Fisb.er Child ........................................................... 73 

Cancer Risk for Adult Resident ............................................................................ 74 

Cancer Risk for Child Resident ............................................................................ 74 

Target Organs and Systems for Oetennination ofNon-Carcinogenic Hazard ..... 76 

Noncancer Health Hazard for Recreational Fisher ............................................... 78 

Noncaucer Health Hazard for Recreational Fisher Child ..................................... 78 

Noncancer Health Ho1.ard for Adult Resident. ..................................................... 79 

Noneancer Health Ro.zord for Child Resident ...................................................... 79 

Belleville News-Democrat Fishing Reports Summazy ......................................... 82 

Tolal Acute Ra2ard Quotient ................................................................................ 86 

Buildillg Dimensions in Incinerator Areas ........................................................... 93 

Building Downwasb Impact on Frank Holten Lake Air Modeling Results ......... 95 

lV 

VES 007766 
Figure 2·1 

Figure 3·1 

Figure 3-2 

Figure 3·3 

FigUJ'e 3-4 

Figure 3·5 

Figure3-6 

Figure 3·7 

Figure 3-8 

Figure 4·1 

Figwe4-2 

Figure 4-3 

Figure4-4 

U ST OF FIGURES 

USGS 7.5 Minute Topogr•phic Map ..................................................................... 9 

Detailed Facilil')' Plot Plan .................................................................................. .. 18 

Wet Scavenging Rate Coeffic•ent as a Function of Panicle Size ......................... 22 

Auer Land Use Classificntion Map for JKM Assessment Area ...................... 26 

Auer Land Use Classification Map With Grid Overlay for 3 KM Assessment Area 

.............................................................................................................................. 27 

20 KM X 20 KM cartesian Receptor Network for Assessment Area .................. 30 

PCRAMMET LAND nse Classifications for 3 KM Assessment Area ................ 37 

Wind Rose for 1985 and 1987-1990 NWS #13994 Meteorological Data ............ 38 

PCRAMMET Classification Map for 3 KM Assessment Area Divided into Wind 

Rose Sectors .......................................................................................................... 39 

Land Use/Land Cover Map Cropped 10 20 KM X 20 KM Assessment Area ...... 54 

Exposure Scenario Map ........................................................................................ SS 

Exposure Scenario Map with Receptor Grid Overlay .......................................... 57 

Frank Hoiten Stnte Park Lake and Lake Watershed Area .................................... 61 

,, 

VES 007767 
LIST OF APPRNDTCES 

I. RISK CALCULATION DA TASHEETS 

II. MODELING OUTPUT FILES (SuaMTITED ON CD) 

lll. LAND USE CALCULATION FILES 

IV. LEAD MODELING (IUEBK PROGRA-M) OUTPUT FILE 

vi 

vEs oonsa 
1.0 l NTRODUCflON AND SUMMARY 

1.1 Introduction 

Onyx Environmental Services (Onyx) owns and operat'7l three hazardous waste incinerators at 

its Sauget, Illinois facility. The incinerators are currently subject to the National Emissions 

Standards for Hazardous Air PoUutants (NESHAP) for Hazardous Waste Combustors (HWC), 

codified as 40 CFR Pan 63, Subpart EEE (§63.1200 10 §63.1213) hereinafter referred to as the 

Interim HWC lVIACT Standards. 

Onyx prepared this human health risl: assessment to evaluate !he potential for health risk and 

hazard !inm incinerator emissions. This site-specific bwnan health risk assessment is targeted to 

address th" impacts of several Compounds of Potential Concern (COPCs) in incinerator 

emissions. 

Jbrougbout this protocol, lbe melbodology presented is based on the 1998, Human Health Ris1: 

As5essment Protocol Guidance Docmnent for: Hazardous Wasle Combustion Focjlities. _Peer 

Review Praft (HHRAP). During the developmelll of this report, the final version of this 

guidance was published. The .final HHRAP guidance (2005 HHRAP) was reviewed for air and 

risk modeling recommendations that were either cor=ted or updated from the previous draft 

guidance. A list of revisions incorporated into this assessment since the July 2004 protocol, 

including those prompted by the issuAnce of the l'inRI HHRAP, is provided in Section 1.6 of this 

repon. Further, wltere possible, existing and site-specific information were used in performing 

the assessment. However, some conservative assumptions (default model options), discussed in 

the appropriate sections throughout this report, were implemented as n~ed to complete the risk 

assessment. 

This revised report includes additional site-specific information requested by EPA Region 5, 

including the results of st.!ek emissions testing performed for the determination of particle size 

distribution and quantification of speciated forms of mercury emissions for Unit No. 4. This 

repon briefly describes ·the results of emissions testing, but focuses on the effccl3 of their 

inclusion in the air and risk models. Onyx has also performed rite-specific sampling and 

analysis of other previously calculated model inputs to more closely estimate future effects of 

incinerator emission~. Conclusions arc made in this repon based on the incorporation of sitespecific testing results and further refineme•tt of n•odel inputs described herein. 

VES 007769 
1.2 Summary 

The risk assessment detailed in this report focuses on incremental carcmogenic and non· 

cnreinogenic effects from mcinerator emissiOns on individuals (receptors) dctlned in Chapter 4 

of this report. Risk and hazard es tim tions were calculated for each receptor, across all 

applicMble exposure pathways, and summed to obtain an estimate of total individual risk and 

hazard for receptors fron1 each COPG. 

Tbe results of the assessment are summarized in the following sections. All hazard and nsk 

calculations have been thoroughly evaluated and found to be below benchmark values for each 

selected exposure scenario. Therefore, incrcmen.tal emissions of selected COPCs from 

incinerator operations are unlikely to result in adverse carcinogenic or non-carcinogenic effects. 

These con<:lusions are made based oo calculated emissions of the target compounds at the 

Interim HWC MACT emissions limits for semi-volatile and low volatility metals and memny, 

as well as for PCDD/PCDF (TEQ). The mass emission rate for each of the$<> constituents was 

calculated based on the cumulative stack gas t!owrate from the three .Onyx incinerators and the 

applicable HWC MACT allowable concentration. Therefore, these resuhs do not represent 

estimated risk or hazard based on actual meta.ls emissions, or even anticipated emissions, but 

rather on the conservative- assumption that stack emissions are at all times at the maximum 

allowable con<:eotration uoder the Interim HWC MACT limits. 

1.3 Quantitative Estimation of Caneer Risk 

The COPCs evaluated in the estimate of cancer risk were arsenic (As), beryllium (Be), cadmillm 

{Cd), chromium (Cr), hexnvuleot chromium (Cr+6), lead (Pb), mercury (Hg), and dioxinlfuran 

(D/F). The health benchmark for total cancer risk from eaoh COPC from all pathways is !.Ox I o· 

5

• This target value is published in the ~A Region 6 Risk Management Addendum to the 

Human Health Risk Assessment Protocol for Ha7Ardous Waste Combustion Facilities (HHRAP) 

as follows, "For the purposes of RCRA permitting decisions, U.S. EPA Region 6 recommends, 

oonsistent with U.S. EPA {l994c), the narrowing of the acceptable risk mnge to 10'5 to 10"; 

primarily to account for exposure to background levels of contamination. As a result, the total 

individual risk associated with exposures to potentiul carcinogens released from a single facility 

should oot exceed 1.0 x I 0'

5

.'' Individual cancer risk from all applicable exposure pathways for 

adult and child resident and recreational fisher adult and child is below this accepted benchmarl<. 

Therefore, seleoted COPCs from incinerator operations SJe unlikely to impose adverse effects 

related to individual cancer risk for any selected exposUn: scenario. 

2 

VES 007770 
I .4 Quaothalive E$timat.ioo of Non-Cancer E·ffetrs 

The health bencl1mark for Hazard Quotients (HQs) for non-e11rcinogenic effects from all 

pothways is 1.0, bur the benchmark was reduced ro 0.25 by the Region 6 authors of the guidau~" 

as a conservative measure to account for other local non-quantified potential sources. This 

conservative recommendation for the maximum benclunarl< is based on the assumption that 

potential non-cancer health effects from other sources could account for a significant portion of 

the threshold limit. This appro>timation wtu made arbitrarily by the Region 6 authors as a way of 

accounting for non-quantified sources. Since that time, the Mercury Study Report to Congress 

(MSRC) bas developed data thai indicate that other sources of mercury in the risk assessment 

evaluation area co1~d have a loss significant effect than 75% of the total HI, depending on site· 

specific considerations. Onyx has provided additional discussion in Section 7.0 to demonstrate a 

more accurate site-specific methodology for estimating· other unspecified sowees of 

metllylmercury in the risk assessment area. Onyx contends that a background concentration 

more representative of this risk assessment area than the empirical number proposed by US I!PA 

Region 6 would result from ulilizinB the MSRC methodology. Using a sil~SJ>CCi fic value for 

other sources of methylmercury hazard that is less than 0.75 increases the benclunark for 

incremental ha7.ard from the Onyx facility. 

The Total Htl2atd Index calculated by the risk model from aU applicable exposure pathways is 

below the conservative 0.25 bencbmarl<. Section 6.3.3 of this document provides infomtation oo 

average mercury concentration in ftsh sampled from the Frank Holten Lake compared to that 

predicted by the fate and transport model. The fish mercury conccn!nltion predicted by the fate 

and transport model is essentially an order of magnirude greater than the fish mereury 

concentration measured from actual samples. Onyx contends that utilization of the acrual fish 

mercury concentration, with some adjustment for increases due to the incremental emissions 

from the Onyx incinerators, would provide a more realistic evaluation of the incremental risk 

associated with these emissions. Since both the highest calculated HI and the HI for mercury 

derived using mercury analytical results in lake fish oro below the 0.25 benclunnrk, incinemtor 

emissions of selected COPCs ore unlikely to impose adveiSe effects related to non-carcinogenic 

hazard for any t.'(j>OSUI1! scenario. 

1.5 Acute Exposure (Direct l nbalatJ<IIl) 

1be health beochmarlc: for comparison to Acnte Hazard Quotient or Htl2atd Index for noncarcinogenic effects is 1.0. The Hazard Index for acute effects from incremental incinerator 

emissions from this facility is below this accepted benchm.ark. Therefore, selected COPCs from 

incinerator operations are unlikely to impose adverse acute non-carcinogenic effects. 

3 

VES 007771 
1.6 Modlficalious to Procedure 

Onyx has prepared several drafts of this report for review l>y U.S. EPA Region 5 and lllinois 

EPA. The first Scr•ening Risk Assessment, sul>mitted for review in Septeml>er 2004, was bused 

on a protocol submitted to U.S. EPA in July 2004. This screening level risk a!isessment utilized 

many conservative default values. In May 2005, Onyx submitted a revised screening level risk 

assessmeni that included many defaults, but utilized mercury concentrations from fish sampled 

from the Frank Holten Lakes. Hazard quouents for mercury were calculated using this analytJcal 

data, rather tluln the default fate and transport equatioos provided in the HHRAP. During the 

execution of this final risk assessment report, a number of the default melhods, values, or 

vnriables were determined to be innppropriate for use in this application. In some cases, values 

srated in the protocol were incorrectly st'8ted. In other cases, awarooess of more appropriate site· 

specific information was included to more accurately sunulate hazard and risk. The issuance of 

the Final HHRAP in September 2005 also indicated changes to some methodologies previo'!sly 

docwnented in the Draft HHRAP. 

The following paragrnphs detail revisions made in the risk assessment evaluation for the above 

purposes since the original protocol. This report represents a conservative approximation of risk 

and hazard from hypothetical worst-caso incinerator emissions if each incinemtor is operating 

long-term at the MACT emission limit for each constiruent. 

The modifications made in performing the risk assessment related to air modeling since the 

submittal of the protocol are: 

• The risk assessment area and its associated land usc and land classification were 

carefully considered in performing this assessment. A detailed land use study was 

perfonned that indicated a near 50150 split between urban and rural land use. Tbe 

methodology by wbicb land use categories were estimated is discussed in Section 

3.2.4.1 and provided in Appendix Ill. Typically, this evaluation indicates a clear 

predom.ina.uce of either rural or wban land use. The HHRAP specifies tlult the 

predominant category be selected in air modeling settings. However, lhe evaluation 

of land use in the Onyx risk assessment area was just slightly more rur'81 than urban at 

a total of 50.05% of the total. Representatives from Illinois EPA and U.S. EPA 

Region 5 indicated that their determination of land use classification had favored 

wban, rather than rural. Onyx used both rural Ulld urban settings in two complete sets 

of JSCST3 air modeling runs. In the interest of developing the most site-specific 

estimate of risk and hazard fpr this assessment area, the average air modeling output 

values for lhe two sets of rum were utilized in the estimation of risk and hazard. 

4 

VES 007n2 
• The Onyx Risk Assessment Protocol stated that the average annual precipitation for 

the years 1988 through 1992 was 88.7 em/yr. Because 1985 aud 1987· 1990 

mereorologtcal data were used in the air modeling, the average precipitation of 99.94 

crn/yr for 1985 and 1987-1990 was more appropnate and was used in the assessment. 

• Air modeling output parameters have been selected based on HlfRAP guidance. In 

the previous version of this report, a maximum exposed resident was located based on 

the specific resident living ncar the facility receiving maximum impact from 

emissions. The selection of air modeling output parameter values for this revision is 

described in detail in Section 3.5 of this repon. 

• The Southern Illinois fishing Map Guide indicates that the surface area of the Frank 

Holten Main Lake is 392,545 m l and the surface area of Frank B.olten Lake 113 is 

323,748 m2

• The combined water surface area is 716,293 m2• This value was 

confirmed using 3-D TopoQuads and was used in this risk assessment. A map 

showing the lake area and lake watershed orca is included as Figure 4-4 in Section 

4.4. 

• The water body and elevation data provided by the DeLonnos 3-D TopoQuads 

program were used to delineate the appropriate watershed area for the lakes at Frank 

Holten State Park and the water bodies that feed it. Figure 4-4 shows the lakes and 

three sub-nrcas that contribute to tbe watershed area, including the rnain lake, lake #3, 

and tbe immediate portion of the Harding Ditch feeding lake 113. Their respective 

areas are 3.25, 1.95, and 3.07 k:n{ The total watershed area is the surn of these areas 

minus the lake surface water areas. As shown on the referenced map, the total area is 

7,550,000 m2

• This value was used in the risk: assessment. 

• To detennine the percent of the watershed area that is impervious to runofi, the 

watershed area delineated using 3·D TopoQoads was overlaid on NCLD land use 

data. The resulting graphic was analyzed using MatbCAD to quantify the land usage 

inside the watershed area. Each land use category was al!Signed an estimated pereenr 

impervious value. A weighted average was calculated to determine the overall 

pereent impervious to runoff. For the Frank Holter.\ State Park watershed area, the 

percent impervious to runoff W1L\ detennined to be 31%. Appendix ill shows this 

calculation. Thus, the impervious watershed area receiving deposition in t.his risk 

assessment is 2,340,500 m2

. 

The modifications made in perfonning the risk assessment related to. risk modeling since the 

suburittal of the original protocol are: 

5 

VES 007773 
• Addiuonal COPCs have been added to the risk assessment protocol, at the request of 

U.S. EPA Region 5. The COI'Cs ronsidcred in this risk assessment arc: arsenic, 

beryllium, cadmium, chromiun1_, hexavalent chromium, lead, n1c.rcury, and 2,3,7,8 

TetraCDD (TEQ). 

• The Onyx Risk Assessment Protocol stated that the default soil bulk density of 1.5 g 

soillcrn3 soil would be used to assess effects of deposition on soil surfaces. Because 

the n.sk asses."'Uent area is predominantly compacted and clay soil, a soil bulk density 

of 1.7 g soillcm3 was used. 

• Emissions sampling was conducted such tltat the current risk assessmmt results 

presented in this report reflect site-specific particle size distnbution and mercury 

speciation data. Particle size distribution data developed during site-specific testing is 

applied to all re~ incinerators. Mercury speciation results from site-specific testing 

are o.nly applicable to {ocinerator Unit 4. Thus, site-specific data are used for Unit 4 

and default model inputs for mercury partitioning are used for locinenuor Units 2 and 

3. This rationale is described io more detail in Section 2.3. 

• Table 4-1 includes all the selected exposure pathways for each exposure scenario. 

Both the ingestion of homegrown pro<lucc and drinking water from the Mississippi 

River, previously omitted from the protocol for this project, have been included as 

expOsure pathways applicable to the child resident exposure srenario. 

• Fish consumption rates for recreational fisher have been based on data from the 

El<posure Factors Handbook, as descnbed in Section 5.2.2.2. 

• The methyl mercury concentration of the fish consumed by receptors considered in 

this risk assessment bas been evaluated basod on fate and transport equations 

provided in tbe Final HHRAP. Onyx contends that acrual fish concentration is a 

more scientifically defensible source of data for assessing potential health risk. 

• The oral cancer slope factors for cadmium and bexavalcnl chromium have been set 

equal to zero, as described in Section 6.2. 

Although not a change in procedure, the following information related to the river and river 

watershed in tho assessment area '''as omined in the risk assessment protocol: 

• Values for the Mississippi River and its associated watershed were not included in the 

Ony~ Risk Assessment Protocol. The values used in this assessment are presented 

be.! ow: 

6 

VES 007774 
o The waterbody surface area for the pon.ion of the Mississippi River located in the 

assessment area was detemuoed using the 3-D TopoQuads progrom. The surface 

area for the Mississippi River used in this assessment was 13,550,000 m2

. 

o The total watershed area for the Mississippi River was detennined utilizing the 

water body and elevation data provided by the 3-0 TopoQuads progmo_ The 

v•lue used in this lisk asseSsment was 49,550,000 m

1

. 

o To determine the percent of the watershed area that is impervious to runoff, the 

water.;bed area delineated using 3-D TopoQuads was overlaid on NCLD land use 

data. The· resulting graphic was analyzed using MnthCAD Ill quantify the land 

usage inside the watersbc.d area. Eacb land use category was assigned an 

~timated percent impe~vious value. A weighted average was calculated to 

determine the overall percent impervious to runoff. For the Miuissippi River 

watershed area, the percent impervious to runoff' WllS determined to be 42%. 

Thus, the impetVious watershed area receiving deposition was 20,811,000 m2

. 

7 

VES 007775 
2.0 FAClLlTY CJIARACTERIZATION 

This section discusses the infom•ation and melhods employed in lbe characteriu uion of lbe 

nature and magnitude of emissions released from the llxed-hearlb and rotary kiln mcinerarors at 

the Onyx site. This information is divided into the following sections: 

• Basic facility information, 

• Emission sou.rce identification, 

• COPC selection methodology, identification, and emission rate estimation. 

2 1 Basic Facility Information 

The Onyx Sanget facility is a commercial hazardous waste facility that receives a wide variety of 

liquid, solid, and gaseous wastes for treatmen.t in three incineration systems consisting of one 

rotary .kiln incinerator (R.Kl) and two fixed hearth dual chambered incinerators. Figure 2-1 

shows the location of each incinerator as well as lhe area surrounding the plant Each unit also 

lneludes 03S0Ciated feed, air polhuion cootro~ process insnumentation and controls, and 

continuous emissions monitoring systems. Table 2·1 presents a list of the source characteristics 

that are required for completion of the Industrial Source Complex Short Term (ISCST3) air 

dispersion modeling. 

The fixed hearth incinerators (Units 2 and 3) are designed to receive any combination of the 

following wastes: containers, aqueous liquid wastes, organic and specialty liquid wastes. Unit 2 

' also receives waste gases. Unit 4 is a rotary kiln incinerator that handles any of the wastes 

described previously for Unit 3, as well as larger bulk wastes. Liquids can be fed to the kiln or to 

the secondary combustion chamber directly. More infonnation related to the incineration 

process, feed systems, and air pollution control eqllipment for each of the units is included in 

Section 2 .0 of the Onyx O.mprehensive Perfonnance Test Plan (CPT Plan), subtilitted i.n 

December 2003. 

8 

VES 007776 
FIGUHE 1-1 l"SGS 7.:; W 'l7fl\ TOPOGR.-\PIIIC AP 

-··----·---..... 

9 

VES 007777 
TABLE2-I 

SOURCE CHARACTERISTICS REQUIRED FOR AIR MODELING 

Source (Stac.k) Source (Stack) Source (Stack) 

P ara meter Units Characteristics Cbaraderisticr Chancterlstics 

for Stack 112 for Stack 113 for Stack 114 

UTM East 745314.456 745342.392 ' 744979.822 

CoordiWltC I (m) 

North 4275912.275 4275958.041 4275204.979 

I (m) 

Base 126.19 126.19 126.49 

Elevation m 

fl 414 414 415 

Height m 27.432 27.432 30.48 

fl 90 90 100 

Diameter m .6858 .6858 1.2192 

fl 2.25 2.25 4.0 

Temperature K 463 - 463 481 

"F 374 374 406 

' 

Velocity ro/s 20.2 20.2 20.4 

fils 66.2 66.2 67.0 

EDJission g/s I I I 

Rate 

Jblhr 7.94 7.94 7.94 

10 

VES 007778 
2.2 Eimissions Levels for Compounds of Potential Concern 

This risk assessment evaluated hypothetical emissions from the \hJ·ee Onyx incinerators. The 

compounds of potential concern (COPC) evaluated in this tisk assessment were selected by U.S. 

EPA Region 5 as the compounds of greatest concern for this site. The COPC list and their 

hypothetical emis.sion rates are presented in Table2-2. 

The mass cmtssions t'lltes presented in Table 2-2 are baSed on the cumulative emissions from 

each incinerator operating at a normal stack gas Oowrate and at the maximum emission 

concentrations allowable under the Interim HWC MACT Standard. This is a very conservative 

(i.e., biased hig)1) hypothetical representation of the sustainable emission levels from the Onyx 

incinerators. The HWC MACT li.mit for LVM has been applied in full for arsenic, beryllium, 

chromium, and hexavalent chromium, indiV1dually. The HWC MACT limit for SVM bas been 

applied in full for cadmium and lead, individually. The combined emission rates of elemcnlll.l 

mercury and mercuric chloride are at the lnterim HWC MAcr limit for total mercury. The 

HWC MAcr !unit for dioxinlfuran toxic equivalency quotient (TEQ) has been applied to 2;3,7 ,8 

tetrachlorodibemo-p-dioxin (2,3,7,8-TwaCDD). The purpose of this risk assessment is to 

estublisb that these Interim HWC MACf limits, evaluated individually, arc reasonably protective 

of human health. 

Emissions testing was conducted to ge•\crate site-speci fie particle size distribution data and 

mercury speciation data. These data and their relevancy to the human health risk assessment 

model are presented in Section 3 .2. 

Onyx has established that. the operation and design of the jncinerator system and an effective 

leak detection aod repair program sufficiently min.itnizcs the potential risk to human health from 

fugitive emissions. Accordingly, Onyx did not consider fugitive emissions in the risk 

assessment. 

2.3 Phase Allocation and Speciation of Mercury .Emissions 

The emission rates for elemental aod divalent mercwy presented in Table 2·2 reflect site-specific 

data and assumption for the speciation of mercury emissions. Site-specific mercury speciation 

dnta were generated from flue gas sampling conducted on the Rolll.ty Kiln Incinerator using the 

Ontario Hydro Method (ASTM 06784~2). The results of this tcstill8 have been utilized for the 

Rotary Kiln in tbe HHRA and m presented in Table 2-3. Since there are differences between 

the air pollution control systems for the Fixed Hearth Incinerators aod the Rotary Kiln 

Incinerator that affect mercury speciation and mercury removal, Onyx has applied HHRAP 

Guidance default values for the mercury speciation for the Fixed Hearth Incinerators. 

II 

VES 007779 
TABLE2-2 

COMBINED HYPETHETICAL COPC EMfSSIONS FROM UNlTS 2, 3 AND 4 

INCINERATORS 

CAS No. COPCName Emission R•tc (g/s) 

7440382 Arsenic 7.72E-04 

7440417 Beryllium 72~ 

7440439 Cadmium 0.00191 

7440473 Chromium 7.72E.Q4 

18540299 Cb.romimn (VI) 7.72E-04 

7439976 Elemental Mercury 9.23E-05 

7487947 Mercuric Chlorido 1 9.50F,04 

22967926 Methyl Mercwy2 0 

1746016 TetraCDD, 2,3,7,8· 3.18E-12 

1 The emission rates of divalent vapor phase mercwy and particle-bound mercury are 

evaluated in the risk assessment as mercuric chloride. 

2 Although considered negligible in S1ack emissions, methyl mercury is evaluated as a COPC 

in this risk assessment to account for the methylation of divalent mercury within 

contaminated media. 

12 

VES 007780 
TABLE2-3 

MERCURY SPECIATION DATA FOR THE ROTARY KILN (UNIT NO.4)) 

Parameter Value 

3-Run Anrage Emissions, ,..g/dstlll 

Elemental Mercury, Hl 0.5 11 

Vapor l'hase Oxidized Mercury, Hg2

' 42.85 

Panicle-Bound Phase Mercury, Hg2+ 0.065 

Speciation of Totlll Mercury Emissions, (Mass Fraction) 

Fraction as Hg0 0.0118 

Fraetion as HJ(' Vapor 0.987 

Fraction as Panicle-Bound Hg1

• 0.00149 

13 

VES 007781 
The Rotary Kilo operates with a powder activated carbon injection sys1em: however, the Fixed 

Hearth Incinerators do nol utilize activated carbon injection. Aclivaled carbon injection is 11 

recognized mercury control technology, and mercury speciation is o factor affecting ils 

perfomumce. Altl1ough aclivated carbon reportedly removes lbe oxidized form of mercury, a 

perccnlage of elemental mercury will also be caplured. This will affccl the mercury emissinM 

leaving the stack. 

A rwo-s1age flue gas cooling process is utilized at the Rotary Kiln lncincnuor, the Fixed Heanh 

Incinerators have a singl~ slage, rapid quench sys1em for the flue gas. It is generally accepted 

that mercury e!dls the flame region of a combustion process in the elemental fonn and becomes 

oxirli7.ed ·upon flue gas cooling. It has also boon noted that lhc conversion of mercury from 

elemental to the oxidized state is a function of the flue gas cooling process. In a rapidly 

quenched flue gas stream, recent studies have shown lhat mercury will not be oJUdized. 

Another difference between the incinerators is that lime slurry is introduced into tbe system v•o 

air-atomixed nozzles a1 lhe Rotary Kiln; ihe Fixed Hearth systems utilize a rotary atomizer for 

!he introduction of lime slul"l)', Dry scrnbbiug systems, such as those used at. Onyx, are 

recognized mercury control technology. Variauons in lime slurry introduction (i.e., air 

atomization versus high speed rotary atomization) may affect the adsorption of mercury from the 

system. 

Based on this approach, Table 2-4 presents the derivation of the emission rates of mercury 

species used in the risk Msessment. These emission rates do not account for lhe global cycle. 

Figure 4·2 of the U.S. EPA J:n·UtAP Guidance was used as a basis for calculating the fraction of 

mercury emissions entering the global cycle and lhe fraction of each mercury species impacting 

the risk assessmenl. 

14 

VES 007782 
TA8LE2-4 

EI'USSION RATE DERIVATION FOR MERCURY SPECIES 

Par•meter 

Units 2 & 3 Unit 4 Un.itsl, 3 & 4 

Combined Combined 

. Total Mercury Emission Rate, 'ifs 4.25E-04 6.11E·04 0.00104 

Fraction of MercUI)' as Kg0 Vapor 0.200 0.0118 0.0885 

Fraction of Mercury as HgH Vapor 0.600 0.987 0.829 

Fraction of MercUI)' as Particle Bound Hg2+ 0.200 0.00149 0.0825 

Hg0 Emission Rate, 'ifs 8.SOE-05 7.28E-06 9.23E-05 

Hg" Vapor Emission Rate, 8/s 2.55E-04 6.09E-04 8.64E-04 

Panicle-Bound H!(+ Emission Rate, 'ifs S.SOE-05 9.19E-07 8.59E-05 

Toto! Hg" Emission Rate, 'i/s 3.40.E-04 6.10E-04 9.50E-04 (modeled as mercuric chloride) 

IS 

VES 007783 
3.0 Affi DISPERSION AND DEPOSITION MODELING 

3.1 Introduction 

ln order to approximate the potential human health risks associated with emissions from 6xed 

hearth and rotary kiln incinerators, Onyx is required to address tl1e atmospheric pollutant 

concentrations and annual deposition rates of the Compounds of Potential Concem (COPCs) in 

the assessment area. The U.S. EPA a1r dispersion model, the lndusmal Source Complex ShonTenn Model (ISCST3), was used to approximate the physical processes occurring in the 

atmosphere that influence the dispersion and deposition of gaseous and particulate emissions 

from t11e incinerator stacks. This chapter discusses the data needed by the model and the results 

of O:>e modeling. 

3.2 Modeling Emissions Inventory · 

The only sources of concern for this assessment are the three hazardous waste incinerators at ti1e 

facility. The emissions generated by the incinerator.! exit through three separate stacks. The 

StaCks were evaluated for the potential of nearby buildings to influence the plume flow from the 

stacks. 

3.2.1 Potential Building Wake Effects 

CharncteriSlics of buildings within a specified vicinity of the Onyx incinerators are important for 

determination of building · wake effects. Flow lines around lhese buildings could ca~1se plwnes 

from tl1e stack to be forced down to the gi'Ound much sooner than they would be if the buildings 

were noi there. These effects arc referred to as building wake effects, or building downwash. 

Charncreristics of the buildings that must be considered to determine the building wake effects 

are their height in relation to the stack, Gnd their distance from the stack. 

As specified in the HH.RAP, two conditions must be satisfied for " building to be consi<lercd in 

downwash detemrinations. 

• Building Height - Only buildings whose height is equal to or greater than 215 the 

height of the stacks (0.40 • Stack Height) should be included. 

• Distance from Stacks - Only buildings that are "nearby" the incinerator stacks 

should be included for determination of building wake effects. The HHRAP 

defines "nearby'' as "five times tbc lesser of the building height (H) or tile 

crosswind width (L)." ln other words, only buildings that are at a disiJmce closer 

than five times the height of the building, or five times the crosswind length of the 

building should be included in building wake effect detetminations. 

16 

VES 007784 
The Unit2 and 3 stacks at lite Onyx incinerators arc 27.432 meters (90 feet) and the Unit 4 stnck 

is 30.48 meters (100 feet) tall. Therefore, in order for nearl>y bwldings to have a potential to 

alfectthe plume rise from these smcks, the buildings in the vicinity of Unit 2 and 3 stacks must 

be at least 10.97 meters (36 feet) tall. Buildings in the vicinity of Unit 4 must be (40 feet) tall. 

In addition, the distance hetween the building and the stack must be less than five times the 

lesser of the building height or crosswind widtlt. In the vicinity of the stack, most buildings have 

only one story and are thus, less than 36 feet tall. Originally, no bwldings in the VICinity of any 

of the ineinrrators were thought to impact downwash. The only building meeting the 

requirements for analysis of building wake effects using the Building Profile Input Program 

(BPIP) is the Bulk Feed Building near Unit 4. A diagram is provided as Figure 3-1 to show its 

characteristics. Since this building was not originally considered in the analysis of wake effects, 

the impact of the exclusion of this building from modeling is discussed in detail m Section 7.0 of 

this report. 

3.2.2 Modeled Emission Rau 

All air modeling performed for this project used n unit emission rate of 1.0 'ifs, instead of 

individu11l CO PC-specific emission rates. The unitized concenn-ation and deposition output• that 

result from using a unit emission rate are tben adjusted for each COPC, based on COPC-speci.fic 

emission rates, as exp!Jlined in tile HHRAP. The calculated COPC-specific concentration and 

deposition rates are then utilized, per HHR.AP guidance, in the estimation of mcclia concentration 

equabons. descnOed latu in this report . 

. 1.2 . .1 Partitioning of Enris.vions 

Emissions from incinerator stacks partition into vapor phase and particle phase. Partitioning of 

the emissions is highly dependettt on the constiniCllt itself. For example, the HHRAP explains 

that. metals and low volatile orgruuc compounds gcoerally exist almost entirely as particle phose 

emi&sions. Other organiC$ occur in tile vapor phase, etlber strictly as vapors, or with a portion of 

the vapor condensed onto the surface of particulates. Vapors that are condensed onto the surface 

of particulates are said to exist as particle-bound vapor. As one would expect, these various 

phases aro modeled differently, and require different types ofinfonnation regarding the particles. 

The difference in modeling of these phases prevents sintultaneous modeling of all phases in a 

single run of the model. Rather, a separate set of runs is required for each of the typeS and 

phases: vapor phase, particle phase, and particle-bound phase. The modeling of each type and 

phase was performed consistent with the guidance presented in the HHRAP. 

3.2.3.1 Vapor Phase Modeli11g 

For vapor phase modeling, the lSCST3 model was instructed to produce predicted values for 

vapor phase ambient air concentration and wet vapor deposition at receptor grid nodes. The 

17 

VES 007785 
FIGURE 3· 1 

DETAlLED FACILITY PLOT PLAN 

(SEE HARD COPY) 

18 

VES 007786 
vap<Jr phase runs for ISCST3 do not require u particle size disrribution for iuput to the model. 

Mercury is the only va,par phase COPC evaluated in this risk assessment. 

3. 2. J.2 Part1cle Phose Modeling (Moss Weighting) 

1be ISCST3 model requires panicle si2e distribution data to determine the rate at which dry and 

wet removal processes depOSit part•cuiAte em1.ssions from the Onyx sources. The rate of 

depOsition is highly dependent on the size of the particles. For dry deposition scenarios, the 

particle size, in combination with particle density, is a key determinant in tbe settling velocity of 

the particle. The larger particles will have u gretuer settling velocity than the smaller particles. 

Consequently, !urger particles will also deposit much closer to the stack. This is easy to deduce; 

the laiger particles are usually heavier, and it is harder to mamtain them in the air flow. 

Alternatively, smaller particles ar8 lighter, bave smaller settling velocities, and are easier to 

maintain in the air Oow. This will resolt in deposition of smaller particles further from the stack. 

Similarly, for Wt!t depOsition, the larger particles are more likely to be removed by falling 

precipitation, a process called scavenging, than are smaller particles. ln this manner, the particle 

size distribution based on mass is used to model the fate of particle phase COPCs. 

Site-specific particle size distribution dam were generated frOm flue gas sampling conducted on 

the Romry Kiln Incinerator using the EPA Method 5 sampling train and a scanning electron 

microscope. The results of this testing have been utilized for the Rotary Kiln and Fixed Hearth 

lncineratol!l in the HHRA since the particulate matter control tecbnology between the two types 

of incinerators ano functionally identical. 

1be particulate mutter control equipment for the Rotary Kiln and Fixed Hearth Incinerators 

utilizes b.'ghouso technology. The fabric filters usod at each incinerator are woven fiberglass 

with a Teflon coating. Pulsejet cleaning of the fabric filters is performed off-line at each 

incinerator. All systems are operated within a pressure drop range, with automatic waste feed 

cw offs, from 2 to 10 inches water colunm. Baghouse inlet temperature on both systems is 

controlled within the same tempera~ regime, typically between 400• Pawl 4209 F. Historical 

RCRA teSt bum results incticate similar particulote matter control with aVCTage emissions 79"" to 

87% below current MACT emission limits. 

Site·specific particle size distribution data are summarized in Table 3-1. For each particle size 

categ01y, a mean particle diameter was calculated using the fol.lowing equatiot), which is given in 

theHHRAP: 

19 

VES 007787 
TABLE3-l 

SlT E-SPECIF'lC PARTICLE SIZE DISTRIBUTION 

Geometric Surface P roportion Fraction 

Scavenging Rate 

Mean Area to Fraction Available of Total Coefficient 

Diameter Volume of Total Surface Surface 

fs"

1

/mm·h"

1

l 

("Ill) Ratio Mass Area Area 

(Jllll"') (J111t1

) 

Liquid Icc 

0.16 37.91 0.008 0.291 0.082 0.000 140 0.000047 

0.26 23.37 0.01 I 0.257 0.073 0.000095 0.000032 

0.36 16.85 0.011 0.191 0.054 0.000063 0.000021 

0.46 13.17 0.011 0.149 0.042 0.000046 0.000015 

0.78 7.70 0.088 0.678 0.192 0.000041 0.000014 

1.84 3.26 0.370 1.207 0.343 0.000120 0.000040 

3.83 1.57 0.445 0,696 0. 198 0.000260 0.000087 

6.22 0.97 0.056 0.054 0.015 0.000439 0.000146 --· -

20 

ves oonaa 
Where: D,,... c Mean particle diameter foo· the particle size category (I'm) 

Do = Lower bound cutoff the particle size category (I'm) 

o, - Upper bound cut of the particle size category (11m) 

The fraction of total mass for each mean particle diameter was determined by dividing the 

particulate mass in a given size category by !he total mass of particulate collected. 

A particle phase run of ISCST3 outputs an array of air concentrations (gtm') and dry and wet 

depositions (g/m2) unifued to a COPC emission rate of 1.0 g/s. 

3.2.3.3 Particle-Bo11nd Phase Modeling (Surface Area Weighting) 

The air dispersion and deposition modeling of particulate matter was described in the previous 

section. Particle-bound phase COPCs are not apportioned across the mass of paniculate matter 

as are the particle phase COPCs. Instead, surfsu area weighting is used to simulate the 

condensation of COPCs onto particle surfaces. The fraction of available surface area for 

condensation is calculated for each particle size category from the mean particle diameter and the 

fraction of particles in the category. These calculations are described in detail in Section 3.4.3 of 

the HHRAP Guidance. The results of these calculation,s are included in Table 3-1. 

3.2.~ Wet Sc4vtnging Coefficient 

Scavenging coefficie.ob were determined for eacb particle size measured from a best fit curve 

developed by Jindal and Reinhold. This best fit curve is show'Jl in Figure 3-2. For particle sizes 

!:)'tater than or equal to 10 lliD. wet scavenging coefficients at the 10 11M particle ~;ze were used. 

The scavenging rate coefficient for frozen precipitation was determined as 1/3 of the wet 

scavenging coefficient for a given particle size. The wet scavenging coefficient for each 

particle-size is listed on Table 3-!. The wet scavenging coefficient for vapor phase COPCs was 

detennined based on a particle size ofO.I 11m, per HHRAP recommendations. 

3. 2. 4.1 RuraVUrban Dispenion C{Jefficiellis 

Site-specific land use information is required to determine the rurallnrban dispersion coefficient, 

surface rouglmcss beigb~ and noon-time albedo. These parameters and bow they relate to land 

use are described in detail in this seetion. Section 3.4.3.3, and Section 3.4.3.4, respectively. 

land use detennination was based on a USGS l :250,000 National Land Cover Dataset (NLCD) 

map of the rislc assessment area. Each NLC.D classification was matched to a similar or 

synonymous Auer and PCRAMMET land use classifications. Each Auer Classification was 

considered either rurol or urban 

21 

VES 007789 
FIGUR.E3-2 

WET SCAVENGING RATE COEFFICIENT AS A FUNCTION OF PARTICLE 

SIZE (From Jindal and Heinold, 1991 

Q) 

.... 

0 

lk: 

Cl 

Wet Scavenging Rote Coefficient (10-

4

s1)/mm-h- 1 

8 

6 

·§,4 

c 

Q) 

1) 

u 

(/) 

2 

04---r-~~~r-~~~rn~--~-r~~~ 

0.1 1 10 

Particle Diameter (microns) 

100 

22 

VES 007790 
For determination of romVurban d1spcnion coefficients, the Auer Land Use Analysis method, 

recommended in the HHR'\P guidance, was employed. The Auer Method defines an area as 

"urban" if it has less than 35 percent vegetation coverage, or if the area can be dcscn"bed as 

primal"ily consisting of categories II, I2, CT, R2 or RJ, a~ defined on Table 3-3. If tho total are<~ 

within the assessment area is identified as more than 50 percent rural, the area is l1lral; otherwise. 

the area is defined as urban. Information used to identify land usc types was obtained from the 

Missouri and Illinois USGS I :250,000 NLCD maps. 

Tbe following steps were taken to detennine rural or urban dispersion coefficients: 

I. An area <:>.'tending out to 3 km from the source center was selected on the USGS 

Missouri and Illinois NLCD I :250,000 Maps. As Shown in Figure 3-3, Auer Laud Use 

Classifications were assigned based on the descriptions of eaeb classification given in 

Table 3·3. 

2. Figure 3·4 shows the I 00 by I 00 meter grid overlay on the map in Figure 3·3, yielding 

approximately 2800 individual cells. Each cell was classified according to the speci fie 

Auer land use types described in Table 3-3. 

3. Each 100 x 100 meter cell wiU1io a category was summed to detetmine the total number 

of cells for each category. Tbe resulting percentages for rural categories were summed 

to yield the percent of rural land use area for the map. The results from this calculation 

are shown io Table 3-4. 

3.3 ISCST3 Model Options 

1be regulatory default option was used in all modeling_ 1be regulatory default option was 

chosen since this modeling analysis bas been prepared for regulatory purposes (i e~ a state 

demonstration). 

Tbe options selected for use include those listed below: 

• . For the Vapor Phase modeling: (I} calculation of air concentrations (CONC optiOn}. (2) 

specification of wet deposition (WDEP option), and (3) include plume depletion 

resulting from wet removal (WETDPLT option}. 

• For the Panicle Phase and Particle-Bound Phase modeling: (I) calculation of air 

concentrations (CONC option), (2) specification of dry and wet deposition (DDEP and 

WDEP options), (3) calculation of mtal deposition flux (DEPOS option), and (4) include 

plume depletion r=lting from dry and wet removal (DRYDPLT and WETDPLT 

options). 

23 

VES 007791 
TABLE 3-3 

LAND USE CLASSIFICATlONS FOR USE £NAUER LAND USE ANALYSIS 

Classificatiou Description 

Use Structures Vegetation 

11 Heavy Major Chem e<~ , steel and Grass tree growth 

Industrial fabrication industries; generally 3-5 extremely rare; <S% · 

story buildings, flat roofs vegetatio-n 

12 Light· Rail yards, truck depots, Very limited grass, tree 

Modet3te warehouses, industrial parks, minor almost total absent;·< 

Industrial fabrications; generally I· 3 story 5% vegetation 

buildings, flat roofs 

cr Commercial Office and apartment buildings, Limited grass and trees; 

hotels; > 10 story beig)tts, flat roofs <15% vegetation 

Rl Common Single family dwelling with nonnal Abundant grass lawns 

Residential easements; generally one story, and light-moderately 

pitched roof SII'UCtures; frequent wooded; > 70"/o 

driveways vegetation 

R2 Compact Single, some multiple, family Limited lawn sizes and 

Residential dwelling with close spacing; shade trees; <30% 

generally <2 story, pitched roof vegetation 

struclllJ:eS; garages (via alley), no 

driveways 

R3 Compact Old multi-family dwellings with Limited lawn sizes, old 

Residential close ( <2 m) lateral separation; established shade trees; 

generaJJy 2 story, flat roof <35% vegetation 

structures; .garages (via alley) and 

aslipits, no driveways 

R4 Estate Expansive family dwelling on multi- Abundant grass lawns 

Residential acre tracts and lightly wooded; 

>80% vegetation 

AI Metropolitan Major municipal, Stale or federal Nearly total grass and 

Natural parks, gold courses, cemeteries, lightly wooded; >95% 

campuses; occasional single-story vegetation 

stntcrures 

A2 Agriculturnl -· Local crops (e.g. com, 

Rural soybean); >95% 

vegetation 

24 

VES 007792 
TABLE 3-3 (Continued) 

LAND USE CLASSIFICATIONS FOR USE IN AU.ER LAND USE ANAL YSIS 

Classifica tion Description 

Use Structures Vegetation 

A3 Undeveloped Uncultivated; wasteland Mostly wild grasses and 

we<:ds, lightly wooded; 

>90% vegetation 

A4 Undeveloped - - Heavily wooded; >95% 

Rural vegeta<ion 

AS Water Rivers, lakes -- Surfaces 

25 

VES 007793 
FIGUREJ-3 

AUER LAND USE CLASSIFICATION MAP FOR 3KM ASSESSMENT AREA 

L£(;£NO 

AUER LANI> USR 

CLASSIFICAT IONS 

1 f 

-II - H[.A VY INDlfSrRit\1. 

12- LIGI-IT -MODERA T£ INOl'STR I. \I 

CT -COMMERICAL 

, 

-. ,, . --

Rl-COMMON RESIPL:N 11,\l . . ~ T 

Rl - COMPACT RESIDENT!,"-

..(! ., R3- COM I' ACT RESIOt::N'I'IAL 

.... ~'! R4 -EST.<\ TE RESIDCNTIAI. 

'· AI -METROPOLITAN :>li\Tl 'RAL 

A2 - AGRICULTUR/11 .. IUJRAI, 

~ . 

t ,_ ---- -

r 

• I· 

·--- t .-. A 

. . . # ·, • r 

• . 

• 

• • t\3 - UNDt;Vr;LOI'ED 

IIIIi'! r\4 - UNDEVf.LOPEP RURAL 

I' I - 1\5- WATER SURI'ACI:S 

® POINT SOURCE 

2<> 

VES 007794 
FIGUKI!: J- 4 

AUER LANO USE CLASSIFICATION JllAP WITH GRID OVERLAY FOR 3 KM MSRSSME:-.IT AREA 

27 

LEGENO 

AUER LAND USE 

CLASSIFICAT IONS 

11!111 II -I-lEAVY INDUSTRIAL 

12- LIGHT-MODERATE INDL'S'IIUt\L 

CT - COMMERICAL 

Rl - COMMON RESIDENTIAL 

R2 - COMPACl" RESIDENTIAL 

"'-" R3 - COMPACT RESIDENTIA L 

tiU1 R4 - ESTATE RESIDENTIAl-

; .... 

llli! 

-

® 

AI - METROPOLITAN NATIJRAL 

A2 - AGRICULTURAL RURAL 

A3 - UNDEVELOPED 

A4 - UNDioVELOI'ED RURAL 

AS- WATER SURf ACES 

POINT SOURCF. 

VES 007795 
TABLE3-4 

AUER LAND USE CLASSIFICAT ION 1>1STRIBCTIONS 

FOR ASSESSMENT AREA 

Aucr Classification Description Rurnllt:rban cc~ata i~~f Ar~n ! -- II Heavy Industrial UriJ:ln 0.0 

12 Ligh1-Moderale lndust1ial Urban 1.14 --·-----··-- -·-··· cr Comm~trc l UrlJlln 38. 72. 

Rl Common Re~ide l Ramal 0.0 

R2 C(m)J)i}Ct Residential Urban 

R3 Compact Residential Urban I 0.1 0 

R4 Es1a1e ResideJ11ial Rural 0.0 

A I Mettopolitan Natural Rural 20.94 

A2 Agricultural Rural Rural 6.55 

A3 Undeveloped Rural l !.22 . ... A4 Undeveloped Rural Run1l 0.0 

A5 Waler Surface Rur•l 11.34 

so.os 1 ·--·--·----.. Total Percentage of Area Classified as Ruo·al: --·- ·-·-··- ·-- -----

28 

VES 007796 
On~-h,, r impacts w~ X' prc,lictcd r(,r air C\ n~cnt r.~unn." nnd annua) tmr>act:; were pn.xl!ctl"fi t(,r 

air concentrations and ull d('.pOsitit'll rntcs. 

1·hc tim1l HJIRAP (Sl'pl 2005) pm"idcd n rcvi:o:...:d mclhndology w cl udin ~ dry ~lr l'hnsl: 

d'-'J')Osition in the ISCSTJ "~ dcl. In 11dditiru1 to the r'Cgulalory dcl'cHilt t)ptinn" li:\tt:d nhovc the 

lt•ll0wing oplions were used l()r the Frnnk i'lollcn L;tkc and wmcrshet.l flrl'R: ( l l SJ)l:t.:il'lcntion r 

dry deposition (DDEP opli<>nt, (2) colculminn <•f 11'1<11 deposition llux (DEI'OS. <~ <m). und (3) 

include plume depletion resulling from dry rcmo,•al (DRYDPLT opti <' ll ~). Tht< s~tl 

methodology was apphed "J>e<:ilically to the modeling " f dh•alcnt mercury by using the 

I'CCOillnlended dry deposition velOCity nf 2 9 cm/s. n1c \'apor phase total dcp<l<IIIOO tllr llkWcling 

output pitrameters were applied in the equnuons provided by Table 8 -4-1. T!tblc 0-4·8, and 

Tnblc B-4-9 of the fin.'l HHRAP Guidonc:e. 

3.3. 1 Receptor Grid 

The receptor grid defines the locatiOII$ of p<>II11S, or rcccpwt·s. for which ISC'ST:I w1ll cstimntc "ir 

purnmctcrs, st1ch as air concentrntion. The collection of "l.~cp ors 1S referred ll1 us o rccoptor grid 

1>n11y. The receptor pathwny defines the UTM coordinates and elevftlion lo r ct1Ch pnilll in the 

receptor grid. 

The receptors for this tisk assessment wet'C aligned in 11 20 km x 20 km Cnrll:soan (rectangular) 

gnd. Figure 3-5 shows the complete 40() km2 nrea that was analyzed, with mlct>octions 

occurring every 100 meters. Et>ch intersection on this grid represenl< a n.'ceptor. 

3.4 Meteorological Data 

Two types of meteorological data were ~uorcd to complete the air dtSJ>Crsion modchn~ for th ts 

risk assessment surf.1ce data and upj>er nir data. Information from these mctcMOiogical dnta 

sets is used by ISCST3 to identify the parameters needed to detenninc air concentmtions nnd 

deposition. 

The fo llowing parameters are required 10 determine air concentrations: 

I. Houtly wind direction (degrees from true nott h) 

2. Hourly wind speed (m/s) 

3. Hourly dry bulb (ambiem air) temperature (K) 

4. Hourly opaque cloud cover (tenths) 

5. Hourly cloud ceiling height (m) 

6. Daily morning mixing height (m) 

7. Daily afternoon mixing hci,ht (m) 

29 

VES 007797 
FICURE :1-5 

2CI K~l X 20 1-:~1 CARTESI,\N RECEI'TOH NETWORK FOH \SSESS~1f.NT ,\RE_\ 

30 

VES 007798 
Tbe following parameters are required to detennine deposition: 

J. Hourly surf-ace pressure (millibars) for dry porticle deposition 

2. Hourly precipitation amount (inches) for wet panicle deposition 

3. Type of precipitation (liquid or frolen) for wet particle deposition 

Five years of meteorological data from IWO nearby National Weather Service StabOns were used 

as the source tor this data. A further discussion on the selection and use of the surface and upper 

air data follows. 

3.4.1 Surfaa DaTil 

SW'fuce data for the risk assessment was obtained from Volume 2 of the SAMSON CD-ROM set 

released by the Notional Climatic Data Center. This CD ROM provides surface data from 1961 

through 1990 for various airports throughout the United States. The data on the SAMSON CD 

contains all of the input param.eters required to determine concentration, dry and wet particle 

deposition, and wet vapor deposition. The following parameters from the SAMSON CD were 

used for the ISCST3 modeling: 

• Wind Speed and Wind Direction 

• Dry Bulb Temperarure 

• Opaque Cloud Cover 

• Cloud Ceiling Height 

• Surface Pressure 

• Precipitation Amount and Type 

·The surface data from St. Louis Lambert International Airport was used for this risk assessment. 

Because mixillg height data from the selected airport was not available for 1986, five years of 

surface data from 1985 and 1987-1990 was used. The SL Louis Lambert·lnternational Airport is 

approximately 23.0 Jan ( 14.36 miles) from the city of Sauget, illinois. The terrain, elevation, and 

weather patterns at this airpon are similar to tbat of tbe assessment site. 

3.4.1.1 Wind Speed and Wind Direction 

Wind speed and wind direytion greatly affect concentration and deposition. Wind speed is 

inversely propottional to COJICentration. Timt is, as wind speed increases, concentmtions 

decrease. Wind direction determines the area in wbich the deposition will occur. If winds blow 

primarily from the north, the highest concentrations will be expected to occur south of the 

source. 

31 

VES 007799