1990-03 – DOE – Radiological Characterization Report for FUSRAP properties in the St. Louis, Missouri, Area



1988-12 – DOE – Hazard Assessment for Exposure to Radioactive Fill Dirt Use for the Parking Ramp of the St. Louis Airport Parking Garage

. ·.

O.S. nepartment of Enerqy
oat Ridge Operations
Post Office Box 2001
Oak Ridg~, TN l78)1-8723
‘ · . .
Bechtel National. Inc.
S…..~s-~~ ~~
~fill= Taa: .
ICIO Ota “-TwrfiOiiU .
O*IW;Llec•erM ~7130
.,….._,. . .D..lf.l nI 0 … act 0-~ l’lr J)UI OJ50
~~· l –
Attention: Andrew P. A vel, Site ~tanager
Technical ServicGs Division
Subject: Bechtel Job No. 14501, PUSRAP Project
DO! eontract No. DE-ACOS-810R20722
Hazard Assessment for Exposure to Pill Dirt used for the
Parkinq Ramp of th& St. Louis Airport Parkinq Garaqe.
Code: 7340/WBS: 134
Ref~rence: National Council on Radiation Protection an~ .
Measurements, Exposure of the Population ln the United
States and Canada fro~ Natural Back9round Radiation,
Bethesaa, MD, Decemher ~~~ 1987. .
Dear Mr. Avel:
In response to your request, a hazard assessment usjnq conservative
assumptions was developed for workers performing activities {n the
vicinity of the St. Lou!s Airport Site (SLAPS) (see Enclosure A).
The hazards to a laborer and truck rlriver involved tn lnad1n9 and
hauling the conta~inated soil to the ramp site and to a potential
road vorker performinq rP.pairs on th• ramp slopes was assessed for
radiation ~xposure to the contaminated soil taken fr~M Coldvater
Creek bed. The methodoloqy and parameters for the dose
calculations and tahles of the dos~s are shown in Enclosure A.
!~ su~~ary, the maximum dose to a laborer loadinq the soil was
estiaated to be 0.16 nrem, and the maximua rlose to the truck driver
haul i ng the soil to the ramp slte w.as estiruted to l’\~ O, 12 mre”.
The doses were fro• external gamma only since the soil was wet and
no airborne activity was likely. The total dose to the road ~orker
engaged in making repairs on the ra~p ~as estimated to be
0.42 mrem, a total of the cofthined ext~rnal qaftma and inhalation
doses. ~he hi9hest dose of 0.42 mre~ to any of tho ~orkers is ~nly
0.42\ of th~ DOE basic limit of 100 mrem for the ~nnual radiation
dose receiv~d by an indivioual ~e~her of the qeneral puhlie and
only about 0.14\ of the normal back9roun~ ra~ ia tion of JOO mrem/yr
for the area freferencP.d above).
058509 ouen
Andrew P. Avel 2
Since the conservative estimate ot the doses ~o the workers are
vell belov the DO! radiation protection standard, th~re is no
hazarc! to personnel who may coJle tn contact w~i th the ·tamp or to the
general public in leavinq the fill material in place. I
Enclosure: ~ stated
Very truly yours,
~~ .I
S. o. Liedle
Project Manager – PUSRAP
. . ”
050609 oseen
A. Lab_Q,Jer f.temovi ng soil From Coldwater ‘1 creek
lt is assumed that the laborer s?ent1one week (40 hours)
during the year removing the soil tojbe used as fill dirt
from the ereek be~. lt is conservatively assumed he was
1 standinq on the c:ontamina ted soi 1 dur tnCJ. the soil removal,
thus if he was usinq a mechanical loader no shieldin9
factors for reducing the exposure rate ~as taken into
consideration. Since tho soil was wet, an inhalation dose
due to airborne dust particles was not considered li~ely.
B. Trucker Hauling the Soll from Coldwater creek to the Ai re.ort
Pa!kinq Garage Ramp {A Distance of three miles)
It. is assumed that the trucker spent! 30 hours exposed to the
contaminated soil while the truck wak being loaded ond
enroute to the ramp •. No shiP.ldinq factors wer~ considered.
Thus, his dose ~oul~ be three-fourths that of the laborer.
SincP. the soil is wet or damp# no in~alation dose is
considered likely.
c. Road Worker tlorkinq_on the Ramp
It is assumed that the worker spends 40 hours during the
year workin9 on the ramp slo~e repai1ring drainage, etc. 1t
iR also assumeo that the ~or~er is e~posed to dry soil that
would beco~e airborne durin9 excavation. A maximu~ mass
loading factor of 4 x 10 -4 g/m 3 ~as pI sed to estt•m ate th e
air concentr~tion of resuspenderi con~aminate~ dust particles.
The source terms used for dose calculations are the avera9e
concentration of the radionuclides in th• top foot of soil
~aken neat the bridge over coldwater creek at Menonnel
Dose Conversion Paelors
Rad·i um-226
External Dose
(mrem/ yr eer pCi/?J
l, 4 0 X 10-3
~ ,4 4 X 10-l
1.30 X 10-l
1.58 X 101
1.90 X 10-l
1.26 X 10-l
in area
2. Methodolo9y for caleulatin9 external ~am~a dose
(Ref. l)
Dose fmrem/yr) ~ {concentration of radionuclide in soil
( pCi /g) (depth factor J ·{a rea factor 1 (occupancy factor)
[dose conve~sion factor (~r~m/yr per pCi/g))
4 —————————- –· -· .. – – ·-
1111!1111——— -·-“”• ·.· ·.. ….. – =–7″” · ·- •.• •.- . ·.. “. .. .. .. l .:. ; . –·–.- ~ .. ; .. –. ;-,”, ,”.;:·-~ ,,. ..- · ..;: . ·.. ·.~ … · ::-~ ..

! asees,
IV. Ma:Jt isua Dos& to -Workers
‘l’ABLt 1
· ‘I’horium-230
I External Gamma Dose
TO R””‘P Sl ‘t’E
Thor i um-2 l 2
External damma Dos~
2.8 X lo-S
1. 2 x lo-4
2. G x , 1o-l
1.2 x lo-1
2.1 x lo-4
5.1 X 10-6
1.2 x 1o-1

•• ,., • , I , • • •• • ,; ~ ,,l) •. •. • : • • , •, i , • • . • \~’I t’ , • … \
IV.. Mil”inm Dose to Workers
‘l’ABLf! l
External Ga1!una Dose
Ridionuclide Cmr~m/yr)
Urartium-234 1.8 X 1o·S
uraniura-235 4.3 X 1o·t
Uranium-238 3.5 X 1o-J
Radium-22’6 1.6 X 1o·l
Thorium-230 3.7 X lQ-4
Tho ri Utn• 2 3 2 7.0 X 1o·6
Tota! l.6 X 1o-1
‘t’O RAMP SI’l’E
External Gamma
Rad ionucll de (mrem/yr)
Uranium-234 2 •. 8 X lo-s
Uranium-23S l. 2 X Io-4
Uranium-23B 2.6 X 1o-l
Radiuaa·226 1.2 X 1o-1
Thor ium-230 2.7 X l0-4
Thorium-232 S.l X 1o-6
Total l.2 X 1o-1

or ani um-238
£x~ernal Gal!lla nose Inhalation oose
(mr~r.t/yr) (mrem/yrl
3.8 I lo-s 1.2 X to-2
4.l X lo-4 1.9 X l0-4
l.S X 1o-J 1.1 X l0-2
1.6 X 1o-1 2.9 X to·4
l. 7 X lo-4 2.1 X to·l
7,0 X 10-6 l.O X l0-2
1.6 X 1o-1 2.6 X to·l
•rhe combined dose from external gamma and i nhalation
a 4.2 z lo-1 ~rem/yr.

1’ABLE 3

Ext~tfi&l Gllnl!ta Dose Inhalation oose
Radionuelide Cmrei”‘\/yr) {lfttem/yr)
l.S .x
4.3 X
3.5 X
1.6 X
3.7 X
7.0 X
lo-s 1.2 X
lo-4 1.9 X
10•.3 l.l X
1o-1 2.9 X
lo-4 2.1 X
lo-‘ l.O X
Total* 1.6 X 1o-1 2.6 X
*Tne eo~ined dose from external 9am~ and inhal~tlon
· • 4.2 :r lo-l mrera/yr.

I .
05I 81.\ ng ~
Qt~~wnas a •
1. GiltH!rt, ‘r. L., et at. A Manual for Impller~ent.inCJ Residual
Radioactive Material CUid~lines, Washington, D.c.,
Jan&l~tY 1988 (In press). A Sllpplement to o.s. Department of
Ener9y Guidelines for Residu~l Radioact iJitr at Formerly ·
2tili:ed Sitea Remedial Action Program arid Renote surplus
Paeilities Manageme~t Pro9ran Sites •


1989-01-20 – DOE – Radiologically contaminated soil beneath a parking garage ramp at the Lambert International Airport

Mr. To• Richter
St. Louts Airport AuthGrity
P.O. Bo• 10212
~rt suttc;n
St. Louts. MD 63145
DMr “”. Richter: ·
D 1~ IIDWit of Etwgy
– ,,O.IMDI
_OR Riclte. T……….., m31-8723
January 20. 1989
Tbe purpose of uats letter ts to dtscuss racUo)ottcallr contam1~ted son
…_atb a OU’k1ftt tarave ramp at the L.uMrt lnternat1ona1 Atf’IM)rt. The son
was ,.., .. ., fr. 1 State c011struct1Gft project •tar the St. l.Gu1s Airport
Stonee Site (SLAPS) wMcb vas suspeeted to be contlfl1nated vittl lw levels
of thort … 230. Tbts son vas trlDSported to the 11T’I)Ort tenatn~l lr”tl vtaere
tt w.s asM as ftll dur1ft9 recent construct1on of a parting garage “”‘· The
analys1s of ~les takeo at the Dlrk,ng gerate ranp durtnt construct1oa
conftnlld that levels of thor1~230 were s11tht1y above DOE’s cleinup ·
crlter1a of. 5 ptcocurtes per trail.
Stace the conttatnated soil is beneath the foundat1on of the parting ramp,
DO[ ca.pletld 1ft assessment of the potentitl health rtsks Which would result
froa leaving the soil in place. ln develop1nv the asse~sment DOE utilized
conservat1ve assumpttons for potential exposure to a worker Who would be
wort1nt on tilt founclat1on of tbe part1ng l”liiiP 1n tht contam1na~ed son. The
nsl.lltarit •xtiiUII dose to aft 1Delhidua1 worttng tn thts manner “‘S est1aate4
‘tO be 0.42 ara/yr. Th1s esttmate vas based em external guma radiation and
inhalatton doses from uran1um-234. ·235. -238, radi~226. thortum-230, and
-232. For COIIIIWir1son. this value ts less than 1/2 of one percent of the OOI
allaw&ble dose l’\111t ta the puhHc of 100 we&Jyr. Tht potential fo~
exposurt 1s ‘V’I!ry law ghen the present lotat10ft of the cont&mtnat.ed so11 aftd
dut to the fact that thoMua-230 1s the pr1mar”y contasiMnt and is an alphl
nc11it1on es1tter~ Alpha radiat,on 1s not tipable of penetraUI\g the outer
la~er of stta on tbe husao body and exposure nay only be obtained if the soil
1s ingested (i .e •• eaten) or inhaled. Inhalation or ingestion of the
c~,taa1nated so11 11 quantities suffit1ert to cause any exposure ts eltrene1y
unl1kt1J given tbe locat.’on of tbe so~l .
• • • •
. I
ltftll Ut rtsaalts of tilt r1st assess.at &nd tht c0ftsirvat1vt ISSYIPt1ons
lAtch an IIUe u pert Df the &SSHs.nt, \bt ‘rtnntlltCAtion of tilt •tertal
lft4 the nature of &lllha rad1at1oa, DOt dMS not reca.tl\11 re110va1 of the
Soft. Tbt d&ta whiCh 4tf1fttS tbe COI~tftlftt ltvt\S Of tb1S SD11 lftd tfte r1sk
asstsSDent v111 bt contidered in tbt overall Rt~~dia1 ‘ tnvest1gation/
Feu1b1Ht1 Studw fol'” ftnal deters1nat1ol of the ftetd I fen- ret~edtat1on . If
thtrt &rt anr Qutst1ons, please conttct ae at (61S) ”6· 084•.
cc : s. ltedle. lttl
A. W.llo, N£•23
~. W1ng, C£•53
6. Kepko • EPA Reg. ion Vtt
D. ledln, MDDMR
&. Turf. Jt£-!3
8. Ma~m1ng, CE·SO
• 1
‘fz::-\ewM ~(Lc.L. P. A¥e1
Site Mauver ! .
Tecbntc•l Strv1cts D1v1ston
I •


1948-11-01 – AEC – SLAPS – Uranium contamination at Airport Storage Area, St Louis MO

. ··- .. …,- -~ : .’ ·~~. . ,,_ … ‘ t~t:r”·;..;._- -:·L\-l·j•’; -~~:.-.1.-..~ -, 1′ ·:~\ L””
·~~;/ a~C; #~ ~~wJ.(__,
T/,r C’-1””” a/ ~0., ~-/
s Atomic Energy ComOnfifsisc1eon u. • I k: Operations
New or 1 Di vi;:i on
November 1 • 1948
. ,; _-_·-·c(\_.M,·EfJJ.£NfiAt.,.- ~-~~ _ V.tiY
A study of pollution o£ Cold ‘?later Creek and content of
uranium that may be .found in the earth at the Airport .
Storage Area, st. Louis, Uissouri revealed the followinga
1. Creek water samples were well within the limits
of tole ranee.
2. M.ld samples adjacent to the area ranged in value ·
from nil to 190 times that of normal uranium
content in soil.
H~rever, no final conclusion should be drawn from these
Ad~itional samples both under normal and adverse weather
conditions need to be taken so that the evaluation o!
hazards presented by erosion and drainage both into the
Creek and adjacent area can be more soundly determined.
‘~ •
Egrpose of Raoo~
During the period z~~rch 23 to March 28, 1948 mud and l’later samples were
taken by Paul B. Klavin in the a raas adjacent to t.lJ.e air:9ort storage area,
Robertson, !o:;issouri. This sampling survey nas planned in order to study
(1} the pollution of Cold ~1ater Creek by materials stored or dun?ed at the
ai rport a rea, and (2) the content of uranium that might have soaked into the
~thod of _s.t u9z
Seventeen water samples werG collected in 500 cc bottles fr~ the various
drainage ditches and streams alongside and adjacent to the storage area. In
addition, samples were collected from the main stream, cold 7’fater Creek.
Samples of water ware obtained from various hiehway bridges frO!ll its oriein
to its mouth.
Fifty mud samples ”are tal(en in 250 cc bottles at both surface and subsurface
levels 01•-.3″ and .3″ to 7″ raspectively; the latter procu.Nd to indicate
pene·tr ation. Using a two inch di.a.metar pi-pe to obtain a 211 x 3″ cylinder
of mud, the sub~urface and surface mud was sampled throughout tht3 area west
of the property, where the most noticeable drainage from. the storage area
occurs. Thera lVere 20 sampling stations along a north-eouth line follotdng the
wast fence appro:x:i.:nately 25 – 30 feet apart. ‘Ihe remaining staticns were wast
of the fenced area along the drainage ditches and a9pr~ll~tely 100 feet apart.
In addition to these samples four control mud samples were taken at distances
of one and five miles from the area.
Soil and liquid samples were· analyzed by the University of Ro<'~he ster for uranium content. A soil analysis result of o.o signifies no uranitun detect ed. If present, the uranium concentration is less than 0.1 micrograms l;.ranium per gram of soil. The sensitivity of the water analysis is 0.0004 micrograms uranium per cc of water. ~scriotion of TeiTain aqjoining...MQ...E!:OJ29rlY at J:!obertson..a J:j. ss~t1 Just prior to the period of mud and water sampling t here had boen gena r-a.l and frequent rains causi ng sluage and residue to be washed onto the adjoining property wast of the area. The area nearest tha west fence was swampy and boggy with many small drainage ditches emanating .from the area itself. In the central portion of the adjoini..l'lg area there is a swampy stretch running northsouth for 250 feet and east"""'f9st f'or 125 feat. 'l'liElnty to thirty feet south of asphalt cover ed Brawn Road which borders the area on the nortn., there was a pool of l'fater 50 feet in length. Due wast of t his pool thora was a.nother swampy stretch 125 feet in length originating or terminating at the swampy section desc1~bed above. All of the ground west of the Sl'Bmp area leading to Cold Vlater C:reek was firm terr ain. Two IDAi."l ditchew originati.ng near the fence area were avident1 one 25 feet directly south of and parallel to Brown Road and the other, a larger one originates in ~~a residue area and runs due west for 500 fest into the creek. -1- . As previously m3ntioned, the rainy weather conditions prior to the' sa:npling period were unusually severe and caused the appearance t)f many ephe;aeral ditches in the area. Cold ilater Creek was swollen and turbulent along its entire course to the Missouri River. Discussion The results of the mud analysis showed conclusively that s01no3 residue from the area had been washed "estward towards the creek. It should b1~ recognized that the weather conditions at the time the samples W9re taken af~ects the amounts of uranium obtained par sample. 1.he uranium tolerance value has been given by K. z. ~~rgan a:s: 60 micrograms uranium per milliliter of water. All values from the seventeen water samples taken are well within the limits of tolerance, ths highest,.lO micrograms uranium per milliliter of water being 17% of the recommended laval. Fieure 1 shows the fall-off of intensity in Jlg/ml w.i th respect to distance. It can be noted here that although the path or the creek south of the area ~1s not been plotted, the concentration throughout was nil. The figure generally accepted for normal uranium in soil is 4 x 10-6 grams per gram. Of the 50 soil samples analyzed, the values range from nil to 190 tin:es this figure. Figures 2 and 3 show the number of samples takEn at surface and sub-ourface levels and their multiples of normal. Figura 4 contains plots of both surface and sub-ourface soil concentrations west of the fenced area, showing once again, the sharp drop in inte.nsity with distance. Conclusion '!he study revealed the followinit~ 1. The creek vrater samples ware well within the limits of tolel"ance. 2. }.fud samples adjacent to the area ranged in value from nil to 190 times that of normal uranium content in soil. It is felt that a sound conclusion cannot be drawn from the s~9les shown hera because of the unusual conditions that prevailed at the tillB of sampling. Because of the excessive rains, two divergent forces would tend to affect the results. There would be a tendency to a higher result because of tho increased erosion; while the increased quantity of water would tend to dilute 1;be concentration. With comprehensive data the evaluation of hazards presanted by erosion and drainage both into the creek and adjacent area can be more soundly determined. It is thersfore recommended that subsequent soil and liquid samples be taken during essentially dr.y conditions. -2- ------------------- . • '0 t z 3 • ~ ' 1 a O'- 2 l " ~ 6 7 a 9 o 34567891 ~±Tr-: f -:: - ·~ ,: _ + --~-ttt~ -. ~ --- 8 -- • ·. ~ . :!' . .... --~~ ... -.. .• • 1. - : • •. • t . ,;;;. ..: ·, J,.~,·. Figure .3 ,, ...... --- · -"·-~ ·· ___ ...,.. -.~ ....... ._..... _ . ....,._,..... ____ ~ ·-·------·----·-----'"--·--··! , ...... ~ ............... . " ·--· · ···-···.··--·-~ . 'i / -·--·' . ---.. , ·, ., ......... ... -.l Figun 2. ~j."· l.. .t. .· .k i:··":· ... ·- ,· • • • ANAJ,ISE.S Or' Water Samples Taken at Airport Area & Cold ·,rater Creak Robertson, ~ssouri Hlltiples Sample Ur!'niUI!l of pmf. No. Operation Date Description W.crogrami/ml !$vel 1 Airport Area 'J/23/48 Main stream 150 ft. from fence area 4.0 O.O? 2 ,, II " JUnction of stream and Cold ~ter Creek 0.45 o.oos .3 II It II Cold water Creek & Brown Rd . Approx. 250 it. "l from fence 6 . 0 0. 1 ., ... 4 II " II stream near Brown Rd. 10 i't. fran area .3. 5 o.o6 'J 5 II u Stream near Br01!1l Rd. {juncti on with Cold Water Creek) 10.0 0 .17 tt.r:' " I. . 6 II " • 10 ft. from area main stream leading into Cold ~~ Water Creek 7 .0 o.u 7 " " II 100 ft. from area . Stream near Br~tn Rd. 3. 5 o.o6 8 " II It Cold ','l'ater creek at Taylor Rd. Approx. 1 lllile t:: .:. ~., . J down tile creek 0. 015 O. OOOJ 1""' . ~ · 9 n It n Byp&ss 6? - Highl'lay l40 - ~zel'I'IOOd al. o.ooos o.oooo1 t 10 " It 11 Cold uater Creek - t mile N of New Halls Ferry Rd. o.oo10 0.00002 11 II II II Cold Water Creek - Ol d Ferry Ri. 0.0026 0. 00004 l2 II! n II Cold water Creek - Old Jamestown Rd. 0. 0010 . 00002 13 .. n .. Cold water Creek - Junction of Mo. 99 & Highway 67 0. 0020 . 0000.3 14 " II It Cold Water Creek-1m Halls Ferry Rd. & Patterson Rd. o.oo:w . 0000.3 15 " II It Cold water Creek at N• tural Bridge Rd. o.ooos . oooo1 • 16 II " It Cold Water Creek - St. Charles Rd. o.oooo 0 • • 5alnple No. Operation Date l? 18 A.irport. Area J/23/48 " II II aNALYSES OF Water S&mples Taken at Airport Al'aa & Cold Water Creek Robertson, ~s5ouri Description Cold ~t er Creek - ~dland Blvd. M.lltiples Ui~n.1:wn o.i" Pttti • Alicrograms/ml laval o.oooo 0 c:ra'Wfish picked up on area {Ash weight 3.0 grams} 12. )1/gram of ash .. · •r . ..:t I ~ -- ·-- • ANALYSES OF Soil Samples Taken at Airport Area, Robertson, Mo:. l!llti ples Sanple Uranium of nonaal No1 Q.Eeration Date Il!P'th ~ription micrograms tEE,aJn soil Con9_t 1 Airport Area 3/2E/4S Surface l.'ud 6r from S end of area drainage ditch 0 to 311 near railroad o.o 0 2 II II II Mld. .3" to 6tl 6r fran s end of area drainage ditch balOl'l surface near railroad o.o 0 3 11 II Surface mud 201 N of S and of fence 101 W of fence o.o 0 0 to 311 deep 4 !.Ud Jll to 6U 201 N of Send of fence 10' 'IV of fence o.o 0 r. ·.· II It n • deep ,~. · " 5 II II Surface mud .35' N of s end of f ence 101 W of fence o.o 0 ~ : o to 311 ~; . , .. 6 II II " l!l.d .3n to 6n .35 1 N of S end of fence lO' \1 of fence o.o 0 ~:· :"' deep ,. . f ? n 11 Surface mud 60• N from S eoo of fence lO• \'i of fence 3.2 .so 0 t o .311 a q II II MUd 311 to 7u 601 N from B end of fence 10 r 1'l of fence 3.3 .8,3 deep 9 II .. II Surface mud 95' .from S end of Fence 10' ',f of fence 760. 0 to 4" in ditch 190 10 II II II Surface mud 1251 N of SW end of fence 10' W of fence 19. 4.5 0 to 311 ll II II II }Jld 311 to 611 deep 1251 N of ~ end of fence 101 11 of fence 17. 4.3 12 II II II Surface mud 150' N of SW end of fence 10' W of fence l6. 4.0 • 0 to .3" deep • Sample Uranium !Jlltiples o:f no :rmal No. Operation Depth Description micrograms/gram soU Cone. 1;3 Airport Area J/28/48 llud ~~~ to 6" 1501 N of Sli end of .fence 101 Wo! .fenee 17. 4.;3 14 II II II &lrface mud 1801 N of 5W end t:.>£ renee 101 W of
0 to 3″ fence 8.1 2.0
15 n II .. l!ld 3u to 6•- 1801 N of S5. end of fence lOt Wo! o.o 0
16 II II Surface I!Dld 2201 N of SW end of fence 5′ ii of n. 2.8
0 to 3″ fence
17 11 II ” l’!Wi 3″ to 6n 2201 N of SN end of fence 5′ w or o.o 0
beneath surface fence
l8 II ” It lbd 0 to 511 250• N of SW end or fence 101 W of 9 • .3 2.7
deep fence
19 II II Surface mud 10′ N of NW end of fence o.o 0
0 to 4″ deep
20 II It II Surface mud 310′ N of Sif end of fence 101 \’l of o.o 0 I
0 to 411 fence
21 II II Surface md 201 s of Bl’own Rd. 1001 W of fence 12. 3
0 to 311 towards Cold ·,vater Creek
22 1:11 It .. )u to sin deep 100′ W of fenee towards Cold Water 2.1 o.s
Creek 201 S of Brown Rd.
2J II … It 0 to ,311 deep 2001 W of fence towards Cold ·:1ater 1.2 o3
Creek 201 5 of Brown Rd.
24 II II II Ml.d depth 311 2001 W o! fence towards Cold \'{ater o.o 0
to 611 Creek 5′ S ot Brown Rd.
25 II II II Surface I!Dld 275′ :’i o! fence towards Cold Water u. 2.8
0 to .)11 Creek 5′ S of Brown Rd. (Ditch) • 26 •• II It 3″ to 611 deep 275• w of fence towards Cola water
Creek 51 S of Brown Rd. (Ditch)
12. .3
·. – – —· -·- –·
.. – – • MJ.ltiples
$ample Uranium of normal
No . Operation DaUI Depth Desca-iption Mi.crogramB/gram soil cone.
27 Airport Area 3/’)13/413 l.ll.d 0 to Jitt 4501 ll” of fence near Col d Water Creek 5. 0 1. 25
101 from Brown Rd. (Ditch)
;cs II ” ” Surface mud 500′ r f of ~Ff end of fence junction 1. 5 .38
0 to 3 11 deep of ditch and Cold water Creek 10′ N
of Rl.ilroad tra cks
29 l l 11 n 3n to 7 11 deep 500′ \Y of SY: end of fence j unction o.o 0
ot ditch and·. Cold Water Creek 10′ N of Railroad tracks ·J.
30 II It II Surface mud 4001 Vf of Sl'( corner of fence 75′ N 4 – 5 1 .1 :!’
0 to 4″ deep of RR tracks (drainage ditch} : ~~– f:
31 ll II II 411 to 7″ be- 4001 W af S’:l corner of fence 751 N 2.2 .7
neath surface of RR tracks (drainage. ditch) ,.
32 ll II Surface mud 300′ ‘\’:” of S\7 end of fence (drainage 6 .0 1.5 ~ :.
0 to~~
·-·· : ditch) and 591 N of RR t racks . …,
3!11 to 6in 300′ ‘\’f of SW end of fence (drainage 6.
V ‘
33 •• 11 •• .24. I .
deep ditch) 50 1 N of RR tracks
34 II ” • Surface mud 200• W of s’• end oi f ence 751 N of n. 2.7
0 to 3″ 4eep RR tracks (drainage ditch)
35 II ll ” 311 to 6n 200• ‘II oi S’,f end of fence 75′ N of .3·4 .8.5
RR tracks (drainage ditch)
36 n It II 0 to 3″ deep 100′ W of’ SW end a! fence 50′ N o! 50. 12.5
Surface mud RR tracks (s1’lB.Illpy section)
Yl • • Ju to 6!n 1001 W of sn· end of f ence 50• N of ?.9 .2
RR tracks (Sllalllpy section)
38 II II II 0 to 2ttt sur- 1001 7( of srr and of fence 100′ N of 31. s.o
face mud RR tracks (swampy section)
. 39 n It 2~’ to 6~” 100′ w of S1f end of fence 1001 N o! 4. 0 1.0
If deep RR tracks (swampy section)
• MuJ:t.iples
&unple Urani\llll of normal
No. Oper14tion Date Depth Descri;etion :t.:~ crogramsLrz.a.m. soil Cone .
40 Airport ANa 3/2I3/JJ3 0..311 deep sur- 251 W of w fence towards Cold so. 12.5
face !!!.’J.d ~i’il.tar Creak, 200′ H or RR track
41 II 11 II 0…311 deep 201 w of 11 fence towards Cold ·t~ater 65. 16.2
surface mu.d C~ek 1001 1-1 of RR tra.cka (swamp) w: ~-·
42 II It J• to 6- deep 20• W of “f1 fence tor.oards Cold Water ?.1 1.8
Creak 100• N of RR tr&cks (swamp)
43 11 II 11 Surface mud 20• N of SVT end of fence .251 ‘!T of ?! 3.8 .95
0- 2~1 fence towards cold Water Creek
(drainage ditch)
44 II • • 2!11 to stu 201 N of Si’l end of fence 251 vr of Y o.o 0
deep fence t.ONards Cold ‘Nater Creek
(drainage ditch)
45 II 11 0 – 311 deep 110’ s of NW end of fence 251 7f or 38. 9.5
fence towards Cold :rater Creek ··:Sh-‘
Jn to 5~’
– ~
46 II 11 It u o• s of Nlf end of tenoe 251 w of 25. 6.2 ‘ .
deep fence tO”//&.rds Cold !’later Creek
47 ,, It II Surface mud Control Natural Bridge Rli. &. Air- o.o 0
0- .3″ deep port ~. 1 mile fran area
48 • • II 3″-Qn·daep Control Na.turs.l Bridge Rd . P~ Air- o.o 0
port Rd. 1 mile from area
49 11 • tt 9-3” daep sur- Control – 5 miles from Airport o.o 0
face 1111d Area city limits
50 II .. Jn-Ott deep Control – 5 miles fran J..irport o.o 0
Area city l:imits •
‘ .
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, …… f’ … ~’ o-;w•….c;.s ICS
r KHOol cK£MtCAl WOR I
lfo4ALL.PtC ‘lor ·~ -~–··

., •
Hip 2


1994-09 – DOE – St. Louis Site Remediation Task Force Mission and Charter

– l
– )
Appendix A
Mission and Charter
WLLFOIA4312- 001 – 0058977
I l
: l
Mission Statement
Appendix A
St. Louis Site Remediation Task Force
Mission and Charter
The St. Louis Site Remediation Task Force is a broadly representative body formed in September
1994 to identify and evaluate feasible remedial action alternatives for the cleanup and disposal of
radioactive waste materials at the St.Louis FUSRAP Site and at West Lake Landfill, and to petition
the U.S. Department of Energy to pursue a cleanup strategy that is environmentally acceptable and
responsive to public health and safety concerns. In the event consensus is not achieved, the task
force report will include alternative recommendations to ensure that the points of view of all members
are expressed.
Scope and Purpose
The primary focus of the Task Force is to 1) develop, 2) evaluate and 3) prioritize options for the
cleanup and disposal of contaminated materials present at the St. Louis Site. At the conclusion of
this process, the group will submit recommendations to the Assistant Secretary for Environmental
Policy issues to be covered by the Task Force will include, but may not be limited to, cleanup
priorities, soil treatment, inaccessible soils, and permanent disposal options.
Responsibilities and Expectations
Task Force members will:
• Be informed of site history and site related issl:’es
• Consider multiple po~its of view and relevant factors as a means of fostering problem solving and
consensus building
• Make concerted efforts to keep their respective constituencies/stakeholder groups informed
about task force activities and recommendations
• Attend and actively participate in regular meetings, read and be prepared to comment on
documents, and be available to work between formal meetings if necessary
• Develop and follow a work plan that schedules and milestones
• · Select a facilitator who will be charged with among other things, establishing groundrules,
keeping the process on schedule, and the meetings focused and productive
• Elect a chairperson and charge him or her with specific duties and responsibilities
The chairperson will:
• Represent the group in official communications with DOE senior management and with the
• Preside at the Task Force meetings
• Set the times, location and agendas for meetings
• Appoint committees
• Retain consultants and otherwise be responsible for administrative matters before the Task
WLLFOIA4312- 001 – 0058978
‘ 1
The DOE will:
• Assist the Task Force by providing technical expertise and by assuring that information
necessary for the Task Force’s deliberations is made available in a timely matter
• Honor, respect and give serious consideration to the views, recommendations, and advise of the
Task Force
• Work with the Task Force to provide assistance, staff, administrative support, facilitator, and
access information deemed necessary to fulfill the mission
• Help the Task Force members develop and distribute informational materials to their
constituencies and to the general public
• Provide financial support
• Make no attempt to control the Task Force or its agenda
The Task Force is comprised of members of the City and County appointed oversight commissions
plus members designated by DOE as representatives of additional stakeholder groups. These
groups include owners of contaminated residential and commercial properties, civic activists,
congressional field staff, and representatives of agencies that have regulatory authority at the site.
Ground Rules
• Task Force meetings will be open to the public. A 10-minute period will be allocated for public
comment at the beginning of each meeting. Written comment will be accepted at any time.
Address comments to DOE Public Information Center, 9170 Latty Avenue, StLouis, Missouri
• Beyond the public cbmment period, only duly appointed Task Force members, invited advisors
and others scheduleC: on the agenda may speak during a meeting
• Task Force members agree to participate fully and consistently in the process unless they
• A Task Force member may designate a substitute when he/she is unable to attend a meeting
• Each Task Force member agrees to fully explore and consider all issues before reaching
• Each Task Force member is committed to seeking agreement and agrees to search for creative
opportunities to address all the interests and concerns of all participants
• Each participant acknowledges responsibility to other participates, to their constituencies, to the
process, and agrees:
– that meetings shall begin and end on schedule
– to stay on topic and task
– to candidly identify and share their interests and those of the constituency they represent and
to represent and speak for their constituency
– to listen carefully and respectfully to other participants and to avoid interrupting other
– to offer suggestions with respect and care
– to share relevant information regarding the issues under consideration
WLLFOIA4312- 001 – 0058979
‘ l
I 1
– to communicate with each other directly, rather than through the news media-
– to respect the decision of any participant to withdraw from the consensus-building process at
any time and for any reason
– to explain to other participants the reason for withdrawal from the consensus-building process
– to objectively explain and interpret the consensus building process to their constituency, to
keep their constituents informed of the activities and the ideas of the process, and to seek the
advice of their constituents throughout the process
– to challenge ideas- not people
– to jointly develop a strategy for dealing with the issues of agreement that cannot be reached
• The chairperson or designee will serve as the spokesperson for the Task Force
The Task Force will have regular public meetings as well as working group meetings which may be
announced in advanced. Minutes of all meetings will be available. Should scheduling conflicts arise,
members may send alternates who would be expected to represent the designated member in
discussions and decision-making.
Work Product
Recommendations to DOE will be in the form of written report(s) and will address the concerns listed
above under “scope and purpose.” Debate on these topics should take into account, among other
factors: 1) federal (e.g., CERCLA) requirements 2) state of Missouri regulations and disposal criteria,
3) budgetary constraints, and 4) available data on health effects and risk posed by contaminates at
the site.
The Task Force will ‘ti.~rk toward consensus whenever possible. Where consensus cannot be
reached, the report will describe areas of agreement and disagreement as well as the reasons why
differences cannot be bridged.
Termination of Task Force
The Task Force will dissolve following fulfillment of its stated purpose, i.e. the submission of site
cleanup recommendations to the DOE Assistant Secretary, unless the Task Force agrees to an
expansion of its charter.
WLLFOIA4312- 001 – 0058980


1986-04-04 – DOE – Historical Documentation of St Louis Airport Site Material

‘ .>v~-:tt~ Tll l>oE ‘l/Y/’<~ m.o. 1 History of Material Storage at the St. Louis Airport ~torage Site Tnis is a sumnary of tne licensed mdterial that ha' s been stored at the ~t. Louis Airμort Storage Site (SLAPSS). The site is also referred to as the Robertson Airport Site ano as the St. Louis-Lambert Airport Property. The ~1.7 dcre tract is locatea immediately north of the airport, and since l94ti has been used solely for storaye. 1~1ost of tne mater1als stored at tl1e site were resioues genera~ed by tl1e Mall inckroat Cnemical Works during uranium prossessing operations for tne Atomic Energy Co1unission from 1946 to 1953. The t"1anhattan Engineer District (MtO) was grantee consent to use ana occupy the property on Maren 2, 1946; title was acquired by conae1nnat ion proceedings on January 3, 194 7. Table l sumruar i zes the mater i a.1 stored .H. the SLAP$S. Most mat er i a 1 was removed from tne site in tne 1%6 to 1%9 time ftarne, alt11ough some contaminatea wastes were buriea on site. The pitcholende raffinate, AM-7, was a proauct of operations at the 1~1alli11c1y 1~59 as
a result ot operations by MallinciLAt>SS consisr.s of bJried scrap and
wastes. Jecontami nation wastes, n .. t>b I e. and scrap from remov a 1 of bu i: 1j in gs
at Ues tren,rn Street between 195 7 and · %2 are buried at the ·;o1es t end of the
si:e. In aodi~ion, all structures at the SLAPSS ri€re razed in 1969 anu
Duried on site.
Table 1. Materials Stored at
St. Louis Airport Storage Site
Desi gnation
Material fnt ry Inventory Reports
Apri I ‘959 { 1 ) June 1960 (2)
Au9ust 1964 {2)
Uranium Uranium
Tonnage Tonnage Tonnage Tonnage
Pitchblende raff inate
Radium bearing residue
Barium sulpnate cake, unleached
Barium sulphate cake. leached
Colora~o raff lnate
’46 – ’55 (4)
• 46 – • 48 (4)
’46 – ’55 (4)
’46 – ’55 (4)
’46 – ·ss (4)
Vitro residues ’54 from Middlesex
Captured Japanese U,
C-Liner slag
precipitates’54 from Middlesex
Interim residue plant tailings
55,000 30- and 50- gallon drums
steel and alloy scrap
waste, rubble, and scrap
structures on site
’46 – ’53 l5)
begin ’55 (4)
by • 59 ( 4)
by ’59 {4)
bl.Ii l t ’46 – ’59
(1) Reference: Airport Storage Inventory — April 11, 1959.
(2) Reference, Invitations for bids, U.S. Atomic Energy Commission,
St. Louis Area Office, June 10, 1960, and August 3, 1964.
(3) Reference~ U.S. Atomic Energy Comm\ss\on survey, November 1965.
(4) from Oestrehan Street Refinery
(5) from Metal Plant at Plant 4 and Metal Plant 6E at Oestrehan Street
(6) from removal of buildings at Oestrehan Street between 1957 and 1962
(7) to Lake Ontario, New York. storage site
(8) to Cont1nental in 1966, transferred to Latty Avenue, Missouri, and
disposed of at west Lake Landf; 11 by the Cotter Corporation in 1973
(9) portion sent to Fernald In early 19GO’s; remainder to Continental in 1966
(10) buried at west end from 1957 through 1962
(11) razed and buried on site in 1969
——- ——-
74000 113
0 0
1500 22
8700 7
32500 48
350 2
{inc I. in above)
0 0
(inc 1.
1965 (3)
T__o nnage .._ ____
in abovtt)
’66 to Continental
’48 – , 49 ( 7)
’66 to Continental
’66 to Continental
“66 to Continental
’66 to Continental
to Fernald ’59
sold oy ’62
solo by ’62
( 10)
( , 1 )
.. … –
F:o..,, r:IJ’ ::I-?)
CHAPTER 2 ~l/”1′ ti”” ._A_s-re_
SITE DESCRIPTION c_/a’!1~t’f,’CA-r”i-~
4FJ:tM~1)t. ~
The purpose of this chapter is to describe the Latty Avenue
site at Hazelwood, Missouri, the characteristics of the contaminated
soils and structures present on the site, and the local
geology, hydrology and meteorology.
The site is located in north St. Louis County within the
corporate limits of the city of Hazelwood, Missouri. It is on
the south side, and at the western end of Latty Avenue, with a
·street address of 9200. The site is 2 mi {in a straight line)
north and slightly east of the control tower of the Lambertst.
Louis International Airport. The site is part of Lots 11
and 12 of Hazelwood Farm, a subdivision in U.S. Surveys 1 and 2,
Township 4·7 North, Range 6 East, St. Louis County, Missouri.
(See Figure 2-1.)
The total site, comprising approximately 11 acres, is in low
rolling hill terrain at approximately 520 ft above sea level.
It is in the drainage basin of Coldwater Creek, which discharges
some 12 mi downstream into the Missouri River. The variation in
elevation on the gently rolling site is approximately 10 ft. The
site is separated from Coldwater Creek by Right-of-Way lands of
the Norfolk and Western Railroad Company. Figure 2-2 is a descriptive
map of the site vicinity and includes topography of the site.
The site presently is under two ownerships. The westerly
3.498 acres are owned by Mr. Dean Jarboe of St. Louis; he purchased
the property in June 1977 from the Bayliss Company, which
in July of 1976 purchased it from Associate Commercial Corporation,
formerly Commercial Discount Corporation. The remainder
of the site {approximately 7.5 acres) is owned by the Norfolk and
Western Railroad. (See Figure 2-3.)
In early 1966, ore residues and uranium- and raditllll-bearing
processed wastes which had been stored at the St. Louis Airport
fill site, shown in Figure 2-1, were moved by the Continental
(l)See end of chapter for references.
.. “\.’• ..
Mining and Milling Company of Chicago, Illinois to the Latty Avenue
site. These wastes had been generated by Mallinckrodt Chemical
Works of St. Louis during the period 1942 through the late
1950’s. The Commercial Discount Corporation of Chicago, Illinois
purchased the residues in January 1967: much of the material then
was dried and shipped to the Cotter Corporation facilities in
Canon City, Colorado. The source material remaining at the Latty
Avenue site was sold to the Cotter Corporation in December.1969.
Records indicate that residues remaining on the site at that time
included 74,000 tons of Belgian Congo pitchblende raffinate containing
about 113 tons of uranium, 32,500 tons of Colorado raffinate
containing about 48 tons of uraniwn, and 8,700 tons of
leached barium sulfate containing about 7 tons of uranium. During
the period August through November 1970, Cotter Corporation dried
some of the remaining residues at the site and shipped them to
its mill in Canon City, Colorado. By December 1970, an estimated
10,000 tons of Colorado raffinate and 8,700 tons of leached barium
sulfate remained at the Latty Avenue site.
In April 1974, an NRC inspector was informed that the remaining
Colorado raffinate had been shipped in mid-1973 to Canon City
without drying and that the leached barium sulfate had been transported
to a landfill area in St. Louis County. A reported 12
to 18 in. of topsoil had been removed with the leached barium
sulfate. However, analyses of soil samples taken during an NRC
investigati~n of the Latty Avenue site in 1976 indicated the
presence of uranium- and thorium-bearing residues; furthermore,
at some points on the site, direct readings of radiation exceeded
criteria established by the NRC for decontamination of land areas
prior to release for unrestricted use.
On May 30 and June l, 1976 articles appeared in the St. Louis
Post-Dispatch which indicated that there were some discrepancies
in the official records as to how much contaminated material from
the Latty Avenue site had been deposited where. By letter of
June 2, 1976 the Director, Division of Enviromnental Quality,
Missouri Department of Natural Resources, inquired of the NRC
about this matter. During the June 22-24 and August 11, 1976
periods, Region III of the NRC investigated the alleged discrepancies
and reached the following conclusionsC2l:
ft.0.9.QO#Jt 1.W .. tM _ –
(a) About 8,700 tons of leached barium sulfate and
almost 39,000 tons of soil were removed from the
former licensee’s Latty Avenue site and buried
under 3 ft of other soil at the West Lake Landfill
in St. Louis County during the period July-October
{b) The material present at the West Lake Landfill
does not present an immediate radiological health
hazard to the public.
(c) It is estimated that the concentration of natural
•• **™ I #WWW&–
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(i) 32
Table l . Uraniwn residues store airport (],> l\1J1… “‘~1” ht
site (November 1965) ~ -J
~~~~~~~~~~~~~~~—“ep”–3v~e ~O
Waste material
Pi tchhlende raffinate > AM,7
Colorado raffinate) /tM—10
11 :>
if l>OO /13
}’21 {oe; 4~
.,.a.~ r\1′”‘f £Barium sulfate cake, unleached
ft’ I i,t)C “”ur
Barium sulfate cake, leached
1,500 22
8, 700 7
(I £Ou t’L
i, t(}(J 7
‘· ~
– –
~1isc<:llaneous :naterial 350 ., - C-Ljncr slag 4,000 .< (1 ""-' Total 121,050 241 :t.V\i'tl~"'"' ~es~Jk 1'f~-t ~: !\'"':>~,
v;~,4 ~e$~~,_~
CAf’t~ “;Jc~~ ~ -,:>(l>c.-; rt’-t’\-t~s
Structures and other facilities On site (Nove:rr.be!’ 1965)
Reinforced concrete pit 200 x 42 x 12 ft
Storage shed (concrete flcor) transite roof)
Railroad spur
Loading platform (concrete)
Truck wash pad (concrete)
Thr~e single-story storage shacks (wood)
Chain-1 ink fence
~ {,tXJo ~viM$
sw.Q. +-a.\ I~ $if0i_ f
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.,,.,.-~-···~—-~— 90!~•06 … __J _ UNITED STATES GOVE.R NME.N. T
Files DATE: September 25, 1962
R~&-J.-t. ~4>-1/Ul Ronert L. LayfiE91 , Source & Special Nuclear
Materials Branch, Division of Licensing & Regulation
The Contemporary Metals Corporation was awarded a contract by
the AEC fer the removal of uranium-bearin~ residues from stockpile
areas at Rcbertson, Missouri. These residues were generated
by the Comu.ission at its Destrehan Street Plant, St, Loui~.
~issouri. The applicant intends to process tf.ese ~esiile site. In additic:-i to r:.c: .. r::C:s c.f resi..::.;es,
the ?olo!’ad? raffi:-iate ~ unleacl.’ed bari’..:n s~lfc.. e ~~h. ar.d
learlum cake resulting from refinery c~·er~1:1or:s. 2:-:G rn1scellanecus
redc·..ies st~re~ in dr’.,1.-:is. These resic· .. 1es ~·.ave: l:·eer. cx~,c~~<'. the elemer:ts fer several years. The \.later ccr:tei"'.: is esti:r.ate::'. about 15 - 35%. --- ?rocessin p. °? la:"'lt--- };:::zeJwo.a.d • .J:~i ssourJ. _ -·- ---·---- Tr1e ar;ilicant h.S (‘lf lE:::’. situ~. U·~
h s~uth St. Louis. This is an indt:strial zone. i.”n,;:r;; is ~ l2r;-·~
C:.5,0CJ(; squc.re feet) steel and concrete factory r:~1ilC.:’..:;;- ~;.::stil’f
aT this site. Th& applicants propose to adept ~his t0ildinf for
t’.ieir specific needs. 7:-,e final facility 1-;i.1..l ~un~:~st cf<'! r.>:.ir:
pr:::c.r:!”-c:in;::>, are?.• c:·,e::-5 ::.try laboratcry • cha’.’:,-·::: re·,’.”.:”.’. ~;;:! office: .-,~·f:;:;::.
/ ..
The. ComJDission maintains a 21.74 acre residue storage site adjacent
to the St. Louis, Missouri, municipal airport. The site lies
approximately 15 miles northwest of downtown St. Louis. It is
bounded by Brown Road to the North and East, the Wabash Railroad
main line on the South, and Coldwater Creek on the Yest (which is
also the property line of McDonnell Aircra~ Corporation). South
of the Wabash Railroad right-of-way lies Lambert-St. Louis Municipal
Airport and an area occupied by the McDonnell Aircraft Corporation.
Aircraft take-off and landing patterns cross the property. A location
map is attached as Exhibit 1. An aerial photograph, .Exhibjt 2.
locates the site with respect to adjoining property.
The site is completely fenced; there is a roadway access gate on the
North-side and a railroad gate on the South side, allowing ffabash
iailroad service to the pl.ant via a spur line off the main line
track. The complete area, with its mounds of raffinate residues,
stacks of drums, hodge-podge of. scrap alld temporary type structures,
has the appearance of a. typical spoil area common to chemical
indu~tries having residue storage ptoblems.
Consent to use and occupy the tract was obtained by the Manhattan
Engineer District on March 2, 1946. Title was acquired to the
property on January 3, 1947, by condemnation proceedings for
$20,000. The property was acquired for the purpose of storing
residues from the Destrehan Street Refinery and the Metals Plant.
The major capital improvements to the site were a concrete pit,
202 ft. x 42 ft. x 16 ft., constructed to store radium-bearing
residues (though it vas never used for this purpose), a covered
concrete pad 45 ft. x 250 ft. for the storage of drummed materials
and a railroad siding with loading tipple. A detailed description
of the structures on site is given a·s the last section of this
The site vas operated by the Manhattan Engineer District and the
Commission from 1946 until J1.11y 1953, when the operation was
turned over to Mallinckrodt Chemical Works. Guards vere maintained
at the site from 1946 to 1951.
The Destrehan Refinery started operations in 1946, utiliiing
pitchblende ores and continued on this. feed until early in 1955.
– 1 …
………….. ·11
! ·:
I . I
~. ……… -,–“‘·-·~·-·—-··—.-.- ..- ·–~·–…—-·~———~——-·—-·-·-·~ -~—— –~—-··· ….. i
The procurement contract for these ores with African ~tals
Corporation required the United States to store both the pitchblende
raffinate (AM-7), which contains metal values other than uranium,
such as nickel. cobalt, and copper, as vell as the radium-bearing
residues (K-65)t as African Metals retained ownership of all
material excepf .its uranium content. African Metals. subsequently
transferred ownership of the AM-7 raffinate to the Government.
A large concrete pit was constructed to store the radium-bearing
residue (K-65) but was not used for this purpose due to health
reasons. Instead, this residue was stored in druDlS at the site,.
from 1946 until early in 1948. It was then transferred to the Lake
Ontario Storage Area, Model City, Nev York, in 1948 and 1949. lhe
AK-7 was stored on the gro~d in the open where it remains today,
except for about 350 tons of pitchblende raffinate (AM-7) which were
processed in a small pilot plant facility at Destrehan Street to
recover ionium. This material was processed in 1955-1957 and
returned to the originf 1 raffinate storage at the site.
The raffinate (AM–10) produced from subsequent operations using nonpi1chblende
feeds was stored separately. A barium cake residue
(AJ-4) produced by the refinery is also stored at the site; this
residue resulted from the precipitation of digest liquor with barium
carbonate to reduce its sulphate content. Both of these materials
are stored on open ground.
The residues generated by the refinery aggregate to greater than
95% of the material present~ stored at the Airport Site.
The other major components of residues were generated as slag from
the reduction step of the metal operations at Destrehan Street.
Two types of this material have been generated. Initially the
reduction. bombs were lined with dolomite. The used dolomite liner
(C-liner) was shipped from Destrehan Street and stored at the Airport
Site in bulk on the ground. Shipments of the dolomite slag started
in March 1946 and continued until early in 1953 when the dolomite
liner was replaced by a recycle magnesium fluorine liner. Approximately
half of the C-liner has since been shipped to FllPC for
recovery of the uranium content.
In 1955 an Interim iesidue Plant was constructed at Destrehan Street
to scalp the uranium content from the magnesium fluoride slag produced
in the Metals Plant. tailings from this operation (C-701)
were stored in the concrete pit at the Airport Site, and since have
alt been shipped to FMPC for recovery or the contained uranium.
By 1960 there also had accumulated at the storage site approximately
50,000 empty drums and 3500 tons of contaminated steel and alloy
scrap. However, by 1962 the bulk oi these materials bad been disposed
of for the metal salvage values.
– 2 –
‘ .
.r • t .
……….. -………. –·- —.–…·- … — …………….. ·-·—·
Approximately 2400 drums remain in the area; these c~ain aisc•l·
laneous residues, Japanese uranium-containing send and contaminated
scrap materials.
Haterbl presently stored at the site is stamnari.zed belcnn
Gross Tons Approx.Tons U
Pitchblende Raffinate (AX-7)
Raffi.nate (A.K-10)
Barium Cake (AJ-4)
Other Miscellaneous Residues
· and Captured Japanese 1J
C-liner slag
The original ground purchased in 1946 was Vf!ry uneven· and contained
• low drainage area on the western section of the site. The land had
a drainage slope from East to West, with all surface drainage directed
to the Coldwater Creek at the western edge of the property. The
initial topography of the site is shown in the aerial photograph,
Exhibit 6.
It has been extremely difficult to ;econstruct precisely the sequence
and location of contaminated materials and residues deposited on site.
The Committee has collected from various files and from McDonnell
Aircraft Corporation a series of aerial photographs which depict the
transition at the original site to its present state. Various reports,
drawings and sketches were also located which contributed to a general
understanding of the degree of contamination of the site. Numerous
individuals associated with the Airport Storage Site have been contacted;
however, since such a time has lapsed since the active
operation of the site, much or the information obtained by these
verbal inquiries is qualified by uncertainties of memory. .Also, many
of the people who were intimately associated with the site during
its early operation are no longer available.
Judging from the knowledge gleaned from the above sources, it appears
that with respect to the western part of the site, early dispositions
of contaminated scrap metal were located in the lov areas then existing
on the western end of the property. The scrap metal and other
debris were later covered (in 1952} with dirt received (gratis) Crom
McDonnell Aircraf’t Corporation and worked with heavy equipment to
make a level storage area (see Ex.hibit 7). The reclaimed area is
nov occupied by AM-10 raffinate, drums of Japanese sand and contaminated
rubble and other waste from Destrehan Street •
• 3.
.f ,,~
:·{: L ~

. :· .’.
The existence or buried contaminated metal below the present surface
of the western section of the site was confirmed by tes,t drilling
described elsewhere in this report. Underground contaminated scrap
ia reported to be on the order of magnitude of 50 to 60 truckloads
plus one contaminated vehicle.
The eastern two-thirds of the site presently is covered with mounds
of C-li.ner slag, raffinate (AH-7)> and barium cake (AJ-4). These
mounds of residue rise to approximately 20 feet above normal ground
level. Drainage from the mounds and the adjoining areas is directed
to the Coldwater Creek •
.Drainage waters from the storage area have, in the past, produced
some minor contamination in Cold~ater Creek. Continued monitoring
of the complete area and the creek waters, however, has indicated
that significant levels have never been reached and that all radiation
readings are well within permissible and acceptable limits presently
prescribed by .AEC directives and manuals.
A topographic survey map of the site (Exhibit 3) shows the existing
limits of residue stockpiles, the general topography of the remaining
area on the basis of one root contour intervals and the location of
principal structures at the site. The aerial photograph, Rx:hibit 4,
shows the site essentially as it exists today.
The area is iDclosed by a chain link fence. It c.ontains the folloving
A reinforced concrete pit consisting of floor slab and walls,
200 ft. long x 42 .ft. wide by 12 f’t. deep.
A storage shed consisting of a 250 ft. x 45 rt. concrete floor
pad, with a center wall 7 ft. high and 1 ~- thick running the
length of the structure. The pad is covered with a corrugated
metal roof supported on wood columns and trusses. Sides and
ends of the shed are open.
A single track railroad spur which enters the south fence near
the east end of the site.
A steel and wood· tipple is located along the spur.
A timber drum loading platform, 18! ft. x 8 f’t. x a!- ft. high,
with stone fill ramp, is located just east of the tipple.
A reinforced concrete wash pad for trucks, measuring 51! ft. x 3Si rt. is located east of the Storage Shed.
1 l
• • ) • •
– —·-~-~—– …. d d -·-·—_……._ -~- — ·-· ·—~—. ·-· ·-· .. ··-·—·-··—‘—-, I \C

A reinforced concrete truck loading platfonn with tamp is
1.ocated north of the vash pad and adjacent to the vest end
of the Barium Sulfate residue. It is T-shaped, measuring 24 rt.
long x 65! ft. vide at the north side x la:l ft. vide at the
eouth si~e.
Three single-story wood buildings are also located. on the sites
A 32 ft. x l&i rt. office building at the main gate
on the north side of the area.
A 24j- ft. x 12 ft. guard house also at the main gate •.
A 9 rt. x 7 ft. portable guard house located near
the south fence, midway of the property.
– 5 –
. -..
·.::~. -….. ~··- .. ·-
~’ ~ . ,· . ~ .,/ .
· .. . … .
. ·: .. . . ~.. .
.• . . . ;,j:·
,.,. -· . ., ~
~ .,
. . .
” :. :.~.,…~~ ,· . .. :.~
History of Material Storage at the
St. Louis Airport Storage Site
This is a sunrnary of the licensed material that has been stored at the
St. Louis Airport Storage Site (SLAPSS}. The site is also referred to as
the Robertson Airport Site and as the St. Louis-Lambert Airport Property.
The 21.7 acre tract is located immediately north of the airport, and since
1946 has oeen used solely for storage.
Most of the materials stored at the site were re$idues generated by the
Mallinckroat Chemical Works during uranium prossessing operations for the
Atomic Energy Conrnission from 1946 to 1953. The ~anhattan Engineering
District was granted consent to use and occupy the property on March 2,
1946; title was acq~ired by condemnation proceedings on January 3, 1947.
Table 1 summarizes the material stored at the SLAPSS. Most material was
removed from tne site in the 1966 to 1969 time frame, although some
contaminated wastes were buried on site.
The pitchblende raffinate, AM-7, was a proouct of operations at the
Mallinckrodt Oestrehan Street Refinery, which used pitchblende ores as a
< ·, feed for uranium production from 1946 until early in 1955. These ores were purchasea from African Metals Corporation, with the contract requiring the U.S. to store the raffinate while African Metals retained ownership of all mater1als other than uranium. The raffinate was storea in bulk on the grouna. About 350 tons of tHe ~-7 were processed in a pilor· plant at Oestrehan Street to recover ionium from 1955 to 1957, and returned to storage at SLAPSS. African Metals abandoned the material fol1owing aecreases in the market values of the nickel, cobalt, and copper remaining in the raffinate. The ~-7 was part of the residue from the site sold in l~ti6 to Continental Mining and Milling Company, and was moved to the Latty Avenue site from 1966 to 1967. ~ fo_, Radium bearing r~dues K-65, were also owned by African Metals and stored at the site~ Storage was originally planned to be in the concrete pit at the site, but due to health reasons was stored in drums. It was transferred to the Lake Ontario storage area in 1948 and 1949 • j ... ·.·· . Barium sulphate cake residue. AJ-4. was another product of the Destrehan .· Street Refinery. Storage was in bulk on the ground. _African Metals ~r e~I relinquished ownership of the barium cake. also referred to as airport .. ..,,... cake. It was part of the resiciue solo to Continental in 1966. The 8700 ..t- ~"''fl' tons of leached barium sulphate cake were believed to be dumped at the West ~~'wJ Lake Landfill by its owners. the Cotter Corporation, in 1973. However, c ,,.. t...,. .~( traces remained at the site, and were removed and disposed of at the Weldon _.. r1·"" Spring quarry in 1969 by the St. Louis-Lambert Airport Authority. .,.. .. _~-' Oi-t>~ \)
+ ~’ “”· .. , ..
The AM·lO raffinate was a re~idue resulting from the processing of C\. “,. ., ,v-‘i·,·~·
aomestic ores at Oestrehan Street. It was stored in bulk at SLAPSS~
separately from the AM-7. It was part of the residues sold to Continental
and removed in 1966-67.
‘-‘• “·”‘”””
Other residues which were presumably sold to Continental were the C-6
Vi!tro residues and V- lO capturea Japanese uranium-containing sands and
precipitates. These materials were stored in drums. They were transferred
to the SLAPSS from Middlesex in 1954 during th~~~loseout. w~
The C-Liner slag consisted mainly of dolomite liner with less than 2%
uranium content, and was stored in bulk on the ground. It resulted from the
sepdration of slag from the reduction step in the Metal Plant at Plant 4 and
later in Metal Plant 6E at Oestrehan Street. Shipments began March 10* 1946
and laste~ un~~~,!~jJY 1953 when the dolomite liner was replaced by a
re~~r~lnvento~y as of April 11, 1959 showed 7,800 tons of
C-Liner slay containing ~22.3 tons of uranium. A portion was sent to
Fernald for processing in the early 1960’s; inventory as of November 1965
was 4,000 tons containing 49 tons uranium. The remainder was transferred
to Continental in the 1966 sale.
The interim resiaue plant tailing~were from operations at the Destrehan
Street site, which conrnenced in 1955 to scalp the uranium content from the
magnesium fl~rioe slag. The tailings were shipped to Fernald and processed
in the late 19SO•s. with the process rate increasing to about 600 tons per
month in July 1959. ~ , ~ ~ /~d- fG.J ~A
;…… “~ ,q,(“~.d). ~ ~. J ~. . .
l \
:. : ~.” :•. ·.. ‘
… · ..
remainder were disposed, to
and alloy scrap. 1\ . .!~ 4 .. , ‘- •· · .J_ ·; ‘t-~;.t-,/~ ~~v . .:-. ,
~ “r ~ °”‘” ll.U. 4-JJ.. , ,.. ./ ‘ sf.~ . ‘~/ r~.J…c,t~ A . … • ….1.
The only material remaining at the SLAPSS consists of buried scrap_. ~·
Oecontarnination wastes, rubble, and scrap from removal of buildings at
Oestrehan Street between 1957 and 1962 are buried· at the west end of the
site. In addition~ all structures at the SLAPSS were razed in 1969 and
buried on site •
. .
‘f~ tlv-t …. ~~~ ~::::’~ .s .. &.
_.,… .. —··· ···~··
N ;f ~ ··…A ~ SA- La. – ~ S A ( t -i 6 6 ) .( ~I e. l . ._._
ft, t.-Lf i.,._o…1.. \.-o ~ llO ·.J ·r,., –i Tic …. ~ k ~ -vi (,,, k ……._
;~ l •. L.._,_. ~:;> t…1 ·~ .• /-c-. s-./’~ – 7 ~-,,. ··IA.~ /,-;- ::- -~~
. I ~ ~
‘1A I I f’• ,._sl.. ,_.!/
……. -·– —-~·– …
s~ ~J F ~ ,._ fi .’vr-J ~~ –
e.I. ff~ – w <-~~/Iv J J5 ~ r< (4)",J.1,..,... 4 ... . ....... I . :3' :·:_,_ ...


1960-03-29 – AEC – Preliminary proposal for disposal of residue storage area — Airport Site, Robertson, Missouri

ln Reply
Poat Office Box 470
St. Charlee, Missouri
Refer To: C:Gllll
t>r. C. D. Harri!.~ton, Man~er
Uranium Division
Mallinckrodt Chemical Worl~s
Post Office Box 472
St. Charles. Missouri
Attention: Mr. J. c. Graham
MAR 2 S 1960
‘1JJS·- 32/; -·11- 051- I
$.;.17.J~~ z s Jf;c~ ,4 ~6’Z -S
YI! U . o I
Dear Dr. 11.:lrrington:
Enclosed are two copies of preliminary proposal dated Mltrch 24, l96V,
“t>isposal of Residue Storage Area, Airport Sit~, Robertson, Missouri”,
prepared by the St. Louis Area Office and submitted to Oak Ridge
Operations Office on March 25, 1960, requesting that a directive. be
issued in accordance with Manual Chapter 61Q6-031.
This office will not.Hy you when the direct.ive authorization is
received at which ti.me luinp·sum and unit price subcontracts will be
prepat’ed by Mallinckrodt Chemic;al Works to pel”form all disposal
JC ti vi tics indicated in the preliminary pt’opoaal.
\Enclow~e’ \\Cy Preli.Minary Proposal
‘”dtd 3/24/60 (in dup.)
Very truly yours.
F. H. Belc:her
Area Manager


1959-04-11 – AEC – Manhattan Project – History of the St Louis Airport Site

– ~~–~··· ·-;··•-!K~T···J..imil”1…J1··1~… ( 1
C ‘ Ar~ . I
11 I 5 1· 1
\l..i’1 “: 7. A:IRf’OAT AC, £ l•&~ILJlll••··-·–~~~— 1, / I·.. . . · ‘ : ” – 1
• do . 1 -L rL !, ( ~ 1, ~ .. . 2
. IV\ ,…., I ,. . ~ :r. ••• ‘-“-“-
· General In!omation
‘nle Cormnieeion maintains a residue storage area known as the Airport Site at Robertecn,
. Miseouri. 1hie site is located irranediately north or the St. Louie Municipal Airport
and east of the McD:>nnell Aircraft Corporation Plant on Brown Road in St. Louis County.
Consent to use and occupy the 21. 7 acre tract vas obtained by the Manhattan Di.striot
on March 2, 1946. title vaa acquired to the properiy” on January 31 1947 b7 oond4111nation
proceedings for ‘20,000. It was acquired for the purpose or storing residues !rom the
Destrehan Street Refinery and the Metal Plant at Plant 4. A covered co12arete storage
pad 16′ x 2501 was Qonetructed tor storing drums. A concrete pit 202′ x L2′ x 161 vaa
constructed to store radium bearing re8idues (K-6’). ‘lhe area was enclosed vi.th a chainlink
fence. Later a small blilding containing showers, change room and office epaoe was
moved to the site. A railroad siding· and loading facilities were completed in April 1959
The eite was operated by the Manhattan District and the Cononission .f’rom l 9U6 until July
1953 when the operation ·was turned over to Mallinckrodt Chemical Works. Guards were
maintained at the site from 1946 to 1951.
1 In the Metal Pl.ant at Pl.ant 4 nnd later in the new Metal Pl.ant at Destrehan Street ( 6E),
the slag from the reduction step was separated into two parts. The slag !mmediately
‘ above the derby consisting mainly· of MgF2 was sent to the Vitro Corporation at CanonsrurE
Pa., .f’or uranium recovery. ‘!he renaining slag (C-Liner), consisting mainly of dolomite
liner with leas than 2% uranium content, was stored at the site’ in bulk on the ground.
These ehipments started on March 10, 1946 and continued until early in 1 953 when the
dolomite liner was replaced by a recycle MgF2 liner.
‘lhe Deetreban Refinery started up in 1946 and continued to use pitchblende ores ~ a fee(
until eaTl7 in 1955, The contract to purchase these ores vi th African Metals Corporatj.or.
required the U. 8. to store the ra!finate (A.M-7), containing metallics such as nickel,
cobalt, and copper, and radium bearing r esidues (K-65). Af’rlcan Metals retained ownership
of all material except the uraniUll\ content. Although other concentrates were processed
during the period, the ra.ffinates were not e eparated. ‘Ibey vere stored in bulk
on the ground at the site. The pit constructed to store the radium bearing residue
(K-65) vae not used due to health reasoNS. This residue (K-65) was stored at the site
from 1946 until early in 1948 in drums. ‘!his was transferred to the Lake Ontario storag1
area in 1948 and 1949 after most of the material had’ been reworked to reoover additional
uranium values. ‘lbe ra!finate (AM-10) produced after the pitchblende ores vere used was
stored separately. A barium cake residue (AJ-4) produced by 1the refinery ie also stored
at the sit~. ‘?his residue is a result of a precipitation to reduce sulphate content or
digest liquor. African Metals Corporation has r elinquished! owner~hip of the bariUll cake,
In 1955 an interim residue plant vas constructed at the Destrehan Street si ta to scalp
a major portion of the u.ranium content from the maghesiUJll ~luoride sl.a.g produced in the
Metal Plant. Tailings from thie operation were stored in the concrete pit at the site.
About 350 torus of the pitchblende raffinate (AM-T) were proeessed in a small pilot plant
facility at Destrehan Street to recover ionium. ‘Ihis material wae processed in 1955-195~
and returned to the original r affinate storage at the site.
Plans for Disposition of the Abov·e Material
Interim residue plant tailings are presently being shipped to Fernald and ‘are being processed
t’or urariium recovery at a rate of 200 tons per month. It is planned to increase
_.. ., .. -· _ …. .,..Jr _ _ ” . — c
thi.e rate to about 600 tons p81’ montH in July 19)9. Atter this 111atenal hae been con-
. “8amed at .Fernald, the slag CC-Liner} will be act to Fernald toro proo•sing.
Ot the ~s.ooo 30- and SO-gallon drwne 1t0red at the •ite, appztoxlllatel.7 101000 30-pllon
drum• u~ being aold. ‘!be r.Undel’ are unsaleable and will probabl.7 have to be baled
and sold a• 1onp metal, to1ethel’ With the 3,Soo tone ot other contaminated steel and
allo7 1orap al10 1tored at the eite. It 11 tl;)eot9’1 that procedure• will be e1tabliabed
at an earl1 date tor di1po1ition or thi• oontlminated 1orap metal.
I ‘
‘!be V1 tro Corporation ot Canona’biirg, Pa., aontracted Vi th the Atnoan M9tal.1 Corporation
to pvoh111 the J)itohblend• rattinate (AM-7) toie reoov81’1 ot nickel, cobalt, and copper.
‘lhe Co11111d.aa1on entel’ed into a contract with the Vitro Corporation to purchase ul”anilllft
w.l.uee rlOO’Hl”d trom the rattin&te. Since the market value ot nickel, cobalt, and
copper ha.,. deoreaetd 00111S.del’ab17 1n th• l&•t tfltl 79ar1, it· 11 undtntood that ft.tro
Corporation bu cancelled th• contract. It ii our under1tanding that the African Metals
Corporation 1111lJ’ abandon the 111ateM.al in the near tutve. Ho plans have been made to recover
the Urani.W!l values ot this 111aterial.
1here are no current plans to dispose or •111′ ot the ranaining materials.
SUJ11111&ry ot Material Stoted at the Site
Airport Storage Inventoey – April 11, 19$9
Gross To~ Tona U
Pitchblende Raftinate, AK-7
Rattinate, AH-10
Slag, C-Linar
Int81’bs Residue Plant 1a1.11.nga, C-701
Baria Cake, AJ-h
?.ltro baidues
Captured Japan•• U, Preoipitatea
SS,ooo )0-0allon It SO..Oallon 1>ruMs
Steel and Allo7 Scrap
122.) m.4
•Based ‘on vetght or material delivered to site Vi.th no adjustment
tor 11SOiature pick-up.
/)”>- ~l?ECl.A.I; R.~P~VlEW
‘r1 !.’11.”1 “t’.t•.~•. .”.”. · T” .. ‘T t:’: • •~·· •. -.,,-. ….. ~~ · t: ‘ – : ~ , · ~ • .- ‘ J ..-…
•• ·’ l’\ t +’ •
•, .. 1 ‘. ,-1 • .. … . ~

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