p. 1 

# OAR Box 1384 Prepped by Charmelle Mathews



### Document

Number: 

# 84 ) ll-E-4 4 Docket Number: 

# A-94-5 2

Printed 7/2/2008 8:42:06

AM Sheet 84 of 264P. 2

g|piig? i <* f D

TO :

FROM : DATE : 

### A-94-5 2 MEMORANDU

M Madelein e Stru

m U.S . EPA/ESD/CCP G Gre g LaFla

m Pacifi c Environmenta

l Services , Inc . (PES ) Augus t 14 , 199 6 P:\N40 4 SUBJECT : Summar

y o f June 13 , 199 6 Meetin g Betwee n EP A and Representative s o f th e Continuou s Laminatio n Industr y LOCATION : EPA/Mutua l Building , Durham , NC , 11t h floor conferenc e room , 9:0 0 a m- noo n ATTENDEES :

Mr . Willia

mDannhaue

r Ms . Lind aHerrin g Mr . DuWayn

e Knies s Mr . Gre g LaFla

m Ms . Mari aMalav e Mr . Ke n Meardo n Ms . Hilar y Nort h Mr . Car l Nova k Ms . Melani e Procto r Mr . Joh n Schweitze

r Ms . Madeleine Stru

m Kalwal l EPA/ES D Resolite PES , Inc . EPA/OEC A PES , Inc . Lasc o Panel s Sequenti a PES , Inc . SPI/Composite s Institut

e EPA/ES D (603 ) 224-688 1 (919 ) 541-535 8 (412 ) 452-680 0 (919 ) 941-033 3 (202 ) 564-702 7 (919 ) 941-033 3 (606 ) 371-772 0 (800 ) 637-009 5 (919 ) 941-033 3 (313 ) 668-470 3 (919 ) 541-238 3 Note : Ms . Malav e participate d b y telephone . PURPOS E Th e meetin g was requeste d b y th e SP I Composite s Institut e o n behal f

o f companie s i n th e continuou s laminatio n (pane l making ) industry , i n orde r t o discus s EPA' s dat abas e and MAC T floo r

determination s fo

r thi s subcategory . The EP A als o wishe d t o expan d it s informatio n bas e b y asking th e companie s question s abou t their fabricatio n processe s an d th e HA P contro l measure s in us e a t thei r facilities .

/P. 3

Madelein e Strum Augus t 14 , 199 6 Pag e 2 FACIUT Y PROCESSE S AN D CONTROL S Afte r th e participant s introduce d themselves , industr y representative s provide d informatio n o n thei r

companie s an d manufacturing processes . Th e followin g informatio n wa s provide d b y Mr . Nova k fro mSequenti aregardin g th e company' s tw o facilities , at Grandview , Missour

i an d Gran d Junction , Tennessee . Sequenti aproduce s flat an d corrugate d composit

e panel s i n acontinuou s laminatio n process . Resi n i s receive d a t th e facilit y wit h about a3 3 percen t

b y weigh t styrene content , an

d extr astyren e i s added alon g wit h other ingredient s t o produc e a40-4 1 percen t styren e mixture . Th e resi n matri x i s applie d continuously i n aflat shee t t o aplasti c carrie r

fil musin g adocto r

bar , an d choppe d glas s i s droppe d ont o th e resi n an d compacte d into th e we t layer b y squeez e rollers . A to p filmi s lai d dow n o n th e layer an d th e thicknes s i s se t

usin g rollers . Curin g i s accomplishe d usin g atwo-stag e heater (oven ) system . Th e firs t

stag e produce s gelatio n (partial cur e an d solidification) , whil e th e secon d stag e complete s th e cur e chemistry . Th e oven s use d b y Sequenti aa t Grandview fo

r thei r "narrow " line s ar e heate d b y natura

l gas . Th e ove n fo

r th e wid e fla t lin e use s electricall y heate d plate s t o achiev e gel , an d ga s fo r

me fina l cure stage . Th

e ove n a t Gran d Junctio n use s stea

m (radiato r ai r exchange ) an d gas . Cure d panel s ar e trimme d to widt

h an d cu t t o lengt h usin g water

je t technology . Mr . Nova

k sai d tha t material s accoun

t fo r 6 5 to 8 0 percent

o f total produc t

cost . Marke t

use s are for

truck/trailer

parts , signage , traffi c control , and construction . Sequentia l mixin g tank s are operate d closed a t al l time s excep t

when material s ar e bein g adde d o r

removed . Measure d styren e vapo r concentration s ar e 1 4 pp mwit h th e mixer s closed , an d ove r

60 0 pp mwhe n th e mixer s ar e open . Fro mth e mi x tank , th e material s are droppe d int

o aclose d tan

k o n whic h avacuu mi s drawn . Fro mthi s dro p tank , th e materia

l i s fe d t o afee d tank , which i s kep t full . The feed tank

i s agitate d an d kep t close d durin g agitation . Th e materia l i s fe d fromth e feed tank

throug h apum

p fo r in-lin e catalys t

mixin g and the n layere d onto th e carrier film . I t i s here tfiat

th e materia

l i s firs t expose d t o m

e air . Compressio n o f

th e materia l occur s whe

n ato p fil mi s lai d dow n o n th e open laye r o f resi n an d fiber . Th e only escap e o f material s durin g compressio n i s ou t th e sides . At Sequentia , the

y gri p th e to p an d botto mcarrier films wit h clips . Thi s decrease s th e amount of open spac e alon g th e sides , bu t i s no t a s effectiv e a s afold . Th e resi n mi x wit h it s carrie r film s i s the n heate d t o agel , whic h ca n b e defined a s th e poin t

at which yo u "canno t mov e th e liqui d aroun d wit h your finger. " Som

e minor emission s ma

y occu r afte r th e ge l stat

e ha s bee n reached , bu t

th e styren e i s essentially locke d int o th e resi n material . Mr . Nova k pointe d ou t

tha t th e surfac e cure s first , followed b y th e interio r of m e laminate .



## - 2P. 4

Madelein e Stru m Augus t 14 , 199 6 Pag e 3 Sequenti aown s six productio n machines : fou r i n Grand Junctio n (al l operating ) an d tw o i n Grandvie w (one runnin g an d on e shu t

down) . Thes e machine s produc e wid e an d narro w flat

panels , a s well a s corrugate d panels , and rang e i n lengt h (docto r bo x t o shea

r station ) fro mapproximately 12 0 to 26 0 feet . Mr . Nova

k note d tha t th e 26 0 foo t

tota l leng mfo r th e wide flat

lin e i s ver

y lon g compare d t o th e other line s typica

l i n tiieir plant s and i n th e industry . Fo r

th e corrugate d panels , there i s abou t 8 0 to 9 0 fee

t o f heate d ove n an d 3 0 t o 3 5 fee

t o f we t area . Thes e distance s are mor e typica l of m e machine s the y have . Th e Grandvie w facilit y operate s 1 0 t o 1 2 hour s pe r day , whil e th e Gran d Junctio n facilit y operate s 2 4 hour s pe r

day . Sequenti aperform s annua

l gravimetri c emission s testin g (simila r t o th e stati c tes t

i n us e i n me Sout

h Coas t Ai r Qualit y Managemen

t Distric t i n California) o n it s resin s t o determin e volatil e losse s i n gram s pe r squar e foot of surface . Thes e test s are performe d a t afixed temperature o

f 9 0 °F . The tes t

result s consistently show complianc e wit h th e limit s set b y th e State o f

Missour i DNR . Mr . Nova k explaine d that , in orde r

t o improv e th e working environment an d t o reduc e evaporativ e losses , th e compan y constructe d loca

l enclosure s over

th e we t area s o f th e machine s i n th e summe r of 199 1 (thes e do no t

enclos e th e oven are aof

th e machines) . Thes e enclosure s are mad e o f stainles s stee l and glass , s o tha t th e proces s can b e observe d fro moutsid e th e enclosure . Sequenti aha s experience d n o problem s wit h styren e accu mulatin g o r

polymerizin g o n th e glass . They clea n th e insid e o f th e enclosure onc e o r twic e amonth an d dus t

th e outside . Ver

y littl e additiona

l maintenanc e o f

th e enclosure s i s required . Initially , the

y ha d problem s wit

h th e seal s becaus e o

f th e styrene , whic h attacke d th e seals . The

y now hav e bette r

sea l material s tibat

ar e resistant t o styrene . They routinel y chec k

th e seal s fo

r break s and cracks . Whe

n i t i s necessar

y t o mak e adjustment s t o th e process , an operato r wearin g arespirato r

open s asmal

l door o n th e enclosure an d lean s i n t o mak

e th e adjustment . Ms . Stru maske d if h e knew ho w muc h o f

th e tim e th e door s are open . Mr . Nova k sai d tha t they ca n trac k tha t information . H e note d diat th e enclosure s ar e no t

completel y air-tight , bu t

are seale d al l th e wa

y around . H e sai d that , withi n th e enclosure , th e styren e i s believe d to achiev e aquasi-saturate d condition , i n whic h th e amount

o f styren e going out

of th e resi n matri x equal s th e amoun t goin g bac k in . H e note d tha

t thi s conditio n i s transient

and saturatio n i s probably never reache d (openin g th e door s to th e enclosur e likely result s i n th e los s of an y equilibrium) . Mr . Nova k the n pointe d out

tha t th e ai r withi n th e enclosur

e i s ver y stil l and vapo r

losse s woul d no t b e expecte d to b e significant . Mr . Nova k fel t ma t thi s quasi-saturatio n i s uniqu e i n th e industr y an d note d tha

t on e woul d no t

hav e saturatio n condition s i n enclosure s vented to contro l device s a s woul d b e require d unde r

subpar t W V o f 4 0 CFRpar

t 60 . Mr . Meardo n aske d whether th e facilit y i s usin g les s styren e no w dia t emission s are presume d t o b e lower ; Mr . Nova k responde d tha t

th e propertie s o

f the produc t

hav e improved , but

wa s no t sure if the y ar eP. 5

Madelein e Stru m Augus t 14 , 199 6 Pag e 4 usin g les s styrene . Th e compan

y i s presentl y engage d i n performin g adail y mas s balanc e o n th e proces s at it s Gran d Junctio n facility , whic h involve s accountin g for al l weigh t

o f material s enterin g an d leavin g th e process . Ms . Stru maske d wheme r thi s procedure coul d allo w quantificatio n o

f styren e losse s a s afunctio n o f availabl e styren e (tota

l inpu t t o me process) . Mr . Nova

k fel t that , whil e no t

providin g aprecis e answer , thi s procedur e coul d giv e agoo d indicatio n o

f th e uppe r limi t of styren e losses . H e note d tha t th e scale s they us e ar e checke d quarterl y t o a n accurac y of

1 poun d in 2,00 0 pound s (2/1 0 o f 1 percent) . Mr . Nova k thought ma t thi s procedur e ha s indicate d tha t about 0. 2 percen t

o f th e materia

l i s unaccounte d fo

r (i n th e sumo f

product , scrap , etc.) , i n contras t t o a n estimate d 3 t o 4 percen t los s befor

e th e enclosure s wer e i n place . The annua l employe e exposure check s als o sho w reduction s i n th e 8-h r weighte d averag e concentration s i n th e breathin g zon e wit h th e enclosure s i n place , fro m3,90 0 t o 3 2 ppm . I t wa s note d tha

t withi n th e enclosur

e ther e i s astyren e concentratio n gradient . They hav e aconcentratio n senso r at th e to p of th e enclosure . Mr . Nova

k felt uia t th e concentratio n nea

r th e to p o f

th e produc t

wa s aroun d 2,50 0 ppm , bu t

a t th e to p o f

th e enclosure i t

neve r go t anywher e nea r 2 5 percent o f th e lower

explosiv e limit

(LEL ) for

styrene . Mr . Schweitze

r state d tha t th e LE L fo

r styren e i s 10,00 0 ppm . Mr . Nova k note d that

th e senso r ha s a n alar mthat i s se t a t a lowe r trigge r leve l tha n 2 5 percen t

o f th e LE L and the alar

mha s never

bee n activated . Mr . Nova k coul d no t quantif y th e emissio n reductio n th e enclosure migh t b e achieving , bu t

i n hi s opinio n i t

i s significant . H e state d tha t th e mas s balance s they wer e performin g showe d between 5 0 an d 100 l b o f materia l bein g los t

compare d t o wha

t wa s goin g in , whic h include s evaporativ e losses . Mr . Schweitze r pointe d ou t

tha t withou t a stac k tes t yo u canno t

tel l whether

thes e difference s ar

e du e t o actua

l VO C los s o r

tes t measuremen t

error . Mr . Nova

k sai d tha t h e coul d develo

p aworst-cas e scenari o i n which al l los s i s assume d t o b e styren e (HAP) . At 100 l b per da y and 24 0 day s pe r

year , tins i s

. les s tha n 1 3 tpy . Mr . Nova k note d uia t at Grandvie w they have ove r 3 month s wort

h o f dail y mas s balanc e data , bu t

uia t the firs t part of tha t dat awa s questionabl e becaus e th e peopl e a t th e plan t wer e jus t learnin g the procedures . Th e procedur e i s no w set , and me las t

mon mo f dat arepresent s reall y goo d soli d numbers . A t Grand Junction , uiey are jus t implementin g di e sam e procedures , an

d it wil l take at

leas t 3 month s to "shak

e down " th e protoco l before the y ge t

number s the

y can believe . Mr . Nova k offere d t o provid e documentatio n o f thei r methodolog y fo r

th e mas s balanc e procedure , a s well a s calibratio n informatio n fo r th e instrument s used . H e als o sai d h e woul d provid e adrawin g of mei r proces s an

d adiagra mof thei r productio n building , an d cos t

dat aon mei r

enclosures . 

# 4P. 6

> i Madelein e Stru m Augus t 14 , 199 6 Pag e 5 I n respons e t o aquestion , Mr . Nova k wa s unabl e t o quantif

y th e distributio n of emission s withi n th e process , but fel t tha t th e wet portio n (prio r

to addin g th e to p film) woul d b e th e are aof

highes t emissions . I n contrast , th e oven sectio n i s expecte d t o hav e lo w emission s du e t o th e "close d mold " effec t o f th e to p film . Mr . Nova

k expecte d tha

t th e mixin g proces s shoul d b e relatively low-emittin g du e t o th e smal l surfac e area-to volum e rati o o f th e mixture . Anothe

r smal l sourc e woul d b e th e resi n storag e tanks , whic h emi t

displace d styren e vapor s eac h time di e tank s are filled . Mr . Dannhauer

describe d Kalwall' s proces s a s simila r to Sequentia's ; however , n o enclosure s ar e use d (h e sai d tha t th e plant ha s acomfortabl e workin g environment) . Th e facilit y operate s it s on e machine 24 hour s pe r day , 5 day s pe r

week . H e state d tiiat

the y conducte d astac k

tes t 2 year s ag o usin g atotal enclosure and monitorin g th e exi t points . Area s o f highes t emission s wer

e m e wet area s (95 + percent) . Their machine s ar e ver

y simila r t o wha t Mr . Nova

k described , bu t

wit h anumber

of variations . I n thei r

machin e me filmi s grippe d an d stretche d by clamps , an d extend s about 4 inche s beyon d th e resi n o n eac h side , s o mere i s expecte d t o b e virtuall y n o vapo r

leakag e a t th e edges . Mr . Dannhaue r offere d t o provid e their

complet e tes t report . Resolit e use s on e machin e an d a"unique " proces s (wit

h som e proprietar

y features ) t o produc e corrosion-resistant/fire retardant pane l product s (almough Mr . Knies s sai d m e proces s i s simila

r t o th e other s wit

h respec t to terminology) . The company' s machin e i s quit e smal l ( 5 ft . wide x 1 6 ft . resi n laydow n length) , which i s simila r i n siz e t o Sequen

tia' s corrugate d pane l line . Resolit e i s require d b y meir

insuranc e compan

y t o maintai n ambien t styren e concentration s withi n th e facilit y t o les s tha

n 2 5 ppm . Thei r

oven s ar e different , usin g gas-fire d recirculation , are about 10 0 fee t long , an d hav e n o cool-dow n area . Thei r

wet-ou t are ai s enclose d a s muc h a s possible . The y ru n th e equivalen t

o f 1. 5 shift s pe r day , 5 day s pe r

week . They ar e explorin g th e possibilit y of installin g an in-lin e degassing syste mfro mth e tank s t o th e docto r

blades . Mr . Knies s note d ma t ai r inhibit s curin g an

d yo u d o no t

want ai r i n th e resin , where i t

ca n becom e entraine d an d lea

d t o void s withi n th e pane l an d o n di e surface . Resolite i s als o looking int o m e possibilit

y of furthe r enclosin g th e we t

area , bu t believe s i t

coul d b e difficul

t due to th e small siz e and m e fac t tha t th e machin e i s installe d i n arestricte d spac e within the facility . Personne l do no t nee d respirator s i n me are aof th e machine . The corrosion-resistan t resin s i n us e (isophthali c polyesters , viny l esters , etc. ) hav e atypica

l styren e conten

t o f about 2 9 percent , although Mr . Knies s coul d no t characteriz e specifi c range s fo r th e resins . Mr . Knies s note d tha t thei r emission s ar e aroun d 3 2 tp y an d ma

t me y hav e RACT in plac e fo

r th e Stat e of Pennslyvania . The y submitte d t o th e State thei r titl e V operatin g permi t

reflectin g their

RACT i n Novembe r 1995 , bu t hav e no t heard bac k

fro mth e State . Mr . Knies s said h e would chec k

m e specifi c styren e content s o r range s an d sen d me informatio n t o EPA . H e als o wil l sen d m e stac k tes t result s availabl e fo

r thi s process . 

# 5P. 7

Madelein e Strum Augus t 14 , 199 6 Pag e 6 Mr . Schweitze

r emphasize d tha

t corrosion-resistant

resin s require ahigher

styren e content tha n genera l purpos e resins . Mr . Novak , i n discussin g th e resi n mixture s use d at thi s typ e of

facility , sai d that

styren e content s are typicall y i n th e rang e of 2. 9 to 3. 7 pound s pe r

gallo n o f finished mix . Lasc o Panel s operate s uire e pane l productio n lines , tw o narro w ( 4 fee t wide ) an d on e wide (9. 3 fee

t wide) , 2 4 hr/day , 7 days/wk . Th e wid e lin e wa s equippe d wit h an enclosure i n me fal

l of 1994 . Th e proces s i s essentially th e same a s Sequentia's , wit h a 30-foo t lon g wetout

area . Lasc o use s wheel s t o gri p an d stretc h m e carrie r film, whic h canno t b e don e fo

r corrugate d panels . Thes e are ru n throug h aformin g shoe , i n whic h i t i s ver y difficul t t o pus h ou t

materia l fromme side . Emission s ar e essentially unmeasur abl e (i.e. , negligible) . Employe e exposur e check s are mad e twic e pe r year ; thes e check s indicate pp mvalue s i n m e teen s an d 20' s (Kentucky' s standard i s 5 0 ppm) . I n Jul y 1995 , th e compan

y change d it s resi n supplier , whic h led to alower resi n styren e content . Ms . North sai d Lasc o performe d amas s balanc e t o suppor t aRAC T analysi s fo r

th e Stat e o f Kentucky , bu t

m e compan y ha s no t ye t receive d arespons e fro mme State . She offere d t o provid e mas s balanc e dat afo r me facility , th e procedure use d t o calculat e th e mas s balance , and adiagra

mshowin g th e enclosur

e use d o n th e facility' s wid e line . Ms . Stru msurveye d th e attendee s to revie w thei r operatin g practice s wit

h respec t t o mixin g tank s and th e us e o f covers . Kalwall an d Sequenti aoperat e the mclose d wit h covers . (Sequenti aha s alock-dow n mechanis mto ensure atighte r fit). Resolit

e use s cover s durin g mixing ; the y hav e on e holdin g tan k tha t i s ope n —i t

i s behin d aclose d doo r i n aroo mb y itself

. Lasco' s mi x tank s ar

e lef t uncovere d tiiroughout

th e mixin g process . MAC T FLOO RDETERMINATION S I n respons e t o company question s about EPA' s determinatio n of

facilit y "contro l status " (CS ) an d MAC T floors fo r m e continuou s lamination/castin g subcategory , Ms . Stru msummarize d and discusse d wit h th e group th e methodolog y use d i n thes e calcula

tions . Sh e emphasize d tha

t th e contro l statu s paramete r wa s develope d specificall

y fo r ope n moldin g operation s (han d and spra y layup) ; however , aC S valu e i s shown in th e floor fo r continuou s lamination/castin g a s amean s o f providin g flexibilit

y fo r contro l to tha t subcategory . Mr . Nova

k state d ma t mi s flexibilit

y woul d no t

help pane l maker s i n meetin g astandar

d base d o n th e MAC T floor. Ms . Strumsai d ma t i n th e futur

e alterna

tiv e monomer s coul d b e develope d t o help provide control ; Mr . Schweitze r indicate d tha t presen t alternative s ar

e more costl y an

d EP A should no t

count o n an y feasibl e alternative s comin g o n m e scene i n th e foreseeabl e future . Mr . Schweitze r als o state d tha

t there i s no t adirec t linea r relationship betwee n styren e conten t an d emissions . H e sai d that , for example , a2 0 percent

reductio n i n styren e conten t woul d no t

caus e a2 0 percent

reductio n i n emissions . Ms . Stru magree d ma t th e exac t relationship i s unknown . Industr y 

# 4P. 8

Madelein e Stru m Augus t 14 , 199 6 Pag e 7 expresse d concern tha

t m e MAC T floor

fo r ne w source s woul d b e acontro l leve l reflect

in g th e us e of

incineration , and apparently n o credi t woul d b e give n fo

r ottier contro l approaches . Mr . Nova

k asked wh y styren e shoul d b e draw n of f th e process , an d men incinerated , whe n it s evaporatio n ha s aheady bee n controlle d usin g aseale d enclosure . I n addition , h e pointe d out

tha t incineratio n consume s natura l ga s and create s undesirabl e combustio n products . H e als o asked wha t baselin e th e percentag e reductio n requiremen t woul d b e compare d to . Ms . Stru mresponde d dia

t th e baselin e wa s intende d t o b e th e emission s presentl y comin g fro mth e process . Mr . Schweitze r sai d mat , whil e EP A mus t creat e a"one-size-fits-all " MAC T standard , "true " MACT woul d loo k different at differen t facilitie s (eve n withi n th e sam e subcategory) . Mr . Nova k pointe d ou t

tha t th e (controlled ) Cran e Kemlit e facilit

y was designe d fromm

e groun d up and funding wa s provide d b y B P Chemicals , alarg e corporation . I n contrast , man y facilitie s ar e privatel y owne d an d canno t affor d th e larg e outla

y fo r add-o n controls , and canno t pas s th e cos t

throug h t o customer s becaus e there i s n o valu e adde d t o th e product . Ms . Stru msai d tha

t EP A i s stil l reviewin g m

e dat abas e fo r accurac y an d complete

ness, an d som e o f

th e preliminar

y facilit y informatio n coul d change , affectin g th e MAC T floo r determinations . Sh

e state d tha

t alternate contro l technologie s ar e available , suc h a s VO C concentrators , wliich coul d mak e control s mor

e economical . Mr . Schweitzer responde d that

concentrator s ar e no t

i n us e a t an y of th e facilitie s i n EPA' s dat abase . Mr . Schweitze r

requeste d acopy o

f anon-confidentia

l phone contac t

report fo r on e continuou s laminatin g facilit y (whos e basi c operatin g dataar e bein g treate d a s confiden

tial) , an d Ms . Stru magree d t o provid e it . Ms . Stru mdiscusse d wit

h Mr . Nova

k th e potentia

l fo r asite visi t

t o Sequentia' s Gran d Junction , Tennessee , facilit y t o view mei r

enclose d process , an d th e othe r compa nie s presen t

als o extende d invitation s t o EP A t o visi t their facilities . ACTIO N ITEM S Eac h o f me companie s attendin g th e meetin g offere d t o provid e additional informa

tio n t o EP A t o help th e Agency understan d me proces s emission s an d th e contro l measure s i n us e a t thei r facilities . I n addition , EP A an d PE S agree d to perfor mcertai n actions . Th e actio n item s fro

mthe meetin g are a s follows :



# ?P. 9

Madelein e Stru m Augus t 14 , 199 6 Pag e 8 Compan y 1 . Sequenti a Material s t o b e Provide d mas s balanc e data(methodology , calibrations ) drawin g o f

proces s diagra mo f buildin g an d al l opening s enclosure cost s 2 . Kalwal l complet e emission s tes t

repor t 3 . Resolite resi n styren e content s stack tes t result s 4 . Lasc o

5 . EPA/PE S mas s balanc e dat a procedure fo r

calculatin g mas s balanc e diagra mof proces s enclosur

e Action s t o b e Performe d cal l Cran e Kemlit

e t o confir mtota l enclosure investigate asit

e visi t t o Sequentia' s Grand Junction , T

N facilit y provid e non-confidentia

l telephone contac t

report fo r on e facilit

y i n databas e to Mr . Schweitze r

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