State*
                                          Agency
                                                                         So
                                                                                                                 9345 0 10!
                                                                                                                 .fU! 050
   Off'tvs of Emorgrtu.-y and Renbxliai Response
|   Hazardous Site Evaluation Division (6?04G)
I	,	. ___		  , ___...  __ ,	
                                                                                                     Volume r Ni;niber 4
                  risk assessments .u Supt-rtund -tiv,-. estimate
   ihc aiKrt-w ff'eus! of Cficn'ioit! ootUamuian(-< oa (he plant and
   animal I:k- inlwhsiing the ana avwents-d with the site, 'Ihi.s
   pr*.i;Tsh Jcpends on the cnlk-chon »,'f drtt,! I'snm thr inipacicd
         if flit Su|>ei"f«ifid sit»*; howewr, ''ir^t •."'.iki ,iUine often
        t show whether adverse ccologic:d cfUcts have cxrcuned
   or mig'ii twcsif as (< rc.suii of sue contamma'iom. To evaluate
   actu.il »r.ipacs> or Sikely c« otugicai ti^ks  n»oif crmpit icly, MU1
   data normally arc cofiiparcd to reasonable rxpu (ations fur the
   sire. Such i.vxjx"ei3tions cuminoniy ate icfeired to as reference
   iafwrinstMiii. liiis,  Bulictiti reviews apptoathos for tk lining
   and osing refeienrc informati.'m
             is

       Refeicnrc informal^m, as used in this Buiiciin, is data of
   a comparative nature needed In  investigators' to e\ aluate the
   em ironmental condition ot' a SupcrfunJ site Simply put, refer-
   ence data art" baseline values or characteristics. Il the results of
   site investigations suggest that environmental (phy»ical,chvtm
   cal, or biofogirai)  conditions art degraded iis compatis>on to
   thoisc defined by reference data, advetse impacts !o the site's
   tcological resources arc; indicated.
       Reference infoimation generally falls intc. one or more of
   !ht following categories:
     * Relevant Existing Dtibt. Pala sjxx.iMc to the siic-asS4K"i-
       ..itcd area collected hcfoi e confamniafiofl tx-corred, or data
       fiom elsewhere that can be applied to wte conditions,
     * Aj^Mv,  indices and suriilar matheiwrfical simulations of
       relationships amo
                                                                       Rt*lf "'--v;
                                                                       Sup-.rlunil s:to tin.Si  of these  c.ttfj^inoi !ws  ccrian
                                                                       t'its and appirpuaip ustv,  C'dmmonly, invcMiijjators o^e
                                                                   more flun one scarce of ittcrcrtcc' tntotmatton in completiiip
                                                                   Supei'fund ecofogical d^k asscssmcnN  Ki)u*ie\lgc ot I"\,AI
                                                                                     comiition.s r.i tmdni£ 4 ret'eicncc siu> ihyi
                                                                        ' ft>e ttun  'tr>\t.'>tip[ A'tii^f)»p|; .inu/or iinplrniciitiiig mv pan i>t ?» cat
                                                                   toj'.icji risk a.. trom Ok- |,\ivc?nn«;'s.t,^oi!ir,ic-
                                                                   ut nun.'tgis (icnit'tta) j'fMfrct
                                                                   manage! Ot ^r-^rt'iw cofutiiutor), however, istain.s Mittiriau; «-es;ta«>si
                                                                   lulitv t'i! Uic >jt»:rfi/nj-,  V
Sogicai rihk. a.sscs>inc!
ittal Evt,hna,»tt ,
                                                              uiiJ sites T1hestButktiitsv>cv<'.i!iM()^
                                                       l (fc'PA/WO i  SQ,OiHt. TJiv !p!iv!fn,'*itct;5 fiescnH'd
                                                                                                               titovitk

-------
fviuls K>>ioduv.i'!> prwoiitjumnatinn  MUus Mnrph H no; pos-
sible  ••ofti? approximaiuw, »>iiiuatwn. p!0|L\uon, sir pic dictum
will be ncix-\vj-v [ii almost a IkwsutJti toe appivinri iii. K'tcu-tiv.e
cind'liotiL.. ,-\'H', !hc kuV niu cxic'i* \it  it >i tenet.1 '"ni'osituii'U! cap
vaty cousiilei.ihiy A;pern.'i!tg on the rharacteu-uc;. ;>>' the &.Uo. us
c\nl,.imin:j!itt>  and  potentially *  xpo\rj resoiitos,  and  the
ic;w<1t,ifior,  oensicns that must bt. made, for ihe«,c ieav>ns, she
nv!n»).*cts a«i c.Ai'ouiHj.'t'J to f-insult \vi'tt ilic icnumai HI *\G ' to
hrh iJir.tily »•• re.enct  tnionriahon niviK an-'. appl)  rdVicu. e
      i his caicgoiy totVis to vla'a 1 1' a can be found sn jy»\,.>imn.'tt
repeits.  iihi<(f\ archlvus, scientific pciii'.ltcah., etc.. assd can he
app'k d  ti> siu  consJiti'Mis, til ai!»€-< w-nds, tiu'o-.ti>;.ir, exuMMvc HttKimu se,»>ch--a
ii.i'-ic step in « infimniuuin on iii^
n ic.'s and t"-\,en! ut ccologR.tl (t*'>utci'j ir tlu  pi-iiciai n.Mof th«
.Niipcr^iuti si'p, aid  on the onii>litKin <•;" tiio- >,  i "soui.-fs ih'in j,!'
ihiio  IXita ti;*se> nuisitaincd In  •.'.uo utui Ldcral nalt.iai ix^ouice
.•gv'nci^h^ifciuont.ur. inionr.ati  mun ilu ill .triniiii<»7i. ibunci mcc,
d,!^ ccinlitnin til n.ilur.c r.P>u,ncs. The U.5>  Fi'.h <.nd Uik'iik1
S^ r\ KX (I'St'WSK tui i\,s;iip5f,, njstetiJuet' d:si> .ininul t'lociinm
hiiiHuivi\ t.ti iltv.ifk1^  other cvanipi^s in''lailr ri'A'sSTtM^l  r
liiia !w.c it>i *afci qiuiitx oinJ'lii>!is  (lie Ai;» ho '> IMOS  Jau
^j>( nnav)U,it'« hioSa .-inifthct1 °.. liu '-igi\\il Stn\ cv\W'\ FS't i~)R
d;!i • {\t.\c un stitain flow
     Pnv.ilc COIIM rvalinioigani/iusnns ti'%.o v an ho u^nu! ^'>uu'c5
c>>  cviiint' ihita, j.v»t«cn!h'!v ti'ii^uri'iig the t)pc.s. c\'ci|V, ;i-iul\   ,jiu! ilic  Nation;.!
\\udlifi." FcvUtatUMi. Such gioups r.tan  employ pti>i^sf.iom!U
tiaint. J hlutl and in\ ludc s< ici>iist>- n ho v on  pu,'vn!c useful t>s abcist the tecini1
      vHii!i^iiirie>d;i!,'i;ni;av,!i;;ihlcll) ti wciccollcvki.K'rcsm print
tdv'ont itHMiiti(.'ii J*ns,Mixlc soiiiccs iiK'tudv rej-iiK'toiy documents,
.-nth  an I fivironiTH nidi !»i|\u t Si".ictnon'v-oi NTDT'S pcinii! 'ilc.s.
i«r (."'^ ooud caiitct) flu  tilob of ftilvia' ana jtatt rutmal :t --oturc
•ipciicie-. 5 \illet',e and Uir,n,'!>ii\ scjoucc ile|vr!nicii(,s(%1tc!i inain-
uin.uclm csiJtaitTiijjhi include 'ntornuiMtiUin thopu'>-d.>tiiil\!ii>.c
(.iMuhiii'iis of I he i-ili'-a%-.>p is in rrik'r. iu"AC\ cr, bccuu* v Iv-^iojual site
ti.in,  k'tt ai«.  nil,iNe rfisJ, uhcii !l«c\  cut  available,  tiicv
,a nc:a!l\ lack she leva  >f rtri-uS neci-ss.irv to  ITK\! the net ds or a
Supi-ilbiid jcciujiicdl investHia!:!"!. Fiivifur>iT>uittil Impaci Stak
iiiontA. iV'i c.Sitnipk1. oi'tfn iis.1 *,\er\  pnhsihl-,  sp-xic^ (ha1  tnighi
hiiM-  inliahiicd 11  pa^^il inn-itgh tht,1 uie.. This t.iti inclu-te
 and a re nov t'to disMnt so tp.h»»l«f Hie .<:ili- ap'tunT u, He .''loctodb,'
 jwr-ts'iUsitcConUuHins; .••t, ;jrti!ict;n>'"v spccicsdiiii jic iv.m, local I v
 HI HL'ional'y !  *kiinci.  '\Isv>, if enoiifh owe has paxs< vl.  hist -timi
 Tita HU>  hi-coine irrek-va>n because 1 fid  usi.  in the ato.'i  hi^
  haucci' smmitv,ani'y  .sinn.1 the d.'tu ^'d,  c^lifctod   such thai
       'f oiftVrent soc,ris"5 air st(|ifH,
       Jiiif? u pi in (hex hnf aou-i mm  of ihr Nupritand sue, ipo:np iu-oiivi ith ,i Mipi i tiiiui
   Mlc, to M h'vi scKti iv r KH ,>t!ons.oi ,»sa tool ioci»)(ipi4!e uh iani e
   add 'MI,*S Hut'd site voiiJitiurai.
        Bt Sou1 using a m »d< ', howo\ »•(. if Is H(,post.oil «<• ii'id<;i»i ru:
   flat H' *t  dl uiitdels a*r app'iipi sate 01  pf.H In a' los  all n»vs PI Mk
   rcrvoiiiK'l.  Input vl spec-nc oial
   ii.s.ny a  j.t.rln u'at  ibink't  -'vHJ'd K-UUMC vol't'ciion ti|jic.ju.r«; data iii u ca!ii
   '">c «.iiHtc.',il as ilit >Hi' mir'c't uivpsiit;3(u.) t|ii.ili("."d peisount 1 iiia\ bt
   ^ concrrn Huause sptniic Iramnp olu-n  is ntcurd M tc-i'U- thai
   approp.Ijic uipiii  Jala art' colk\ ted. hold !D ran llu nioiivt and ;.•
   iti'C.'fH't ,tuCi apclv the ii'sulls
        "i fifit i xanipks <>t m iilu'maitL.d itiudi !•« run-, n;i\ m use ,ii(.
   (he  lnnt'\ i^f !'«'!"  Inicgnh ,  f lahiiai  L « a.itatiop Vr-'n > duies, a'ir:
   the (™tt\'gr-spb'c \oiiatic aini Wildh!^ Sut vcy '1 htv- 31. u-.-^k u<^.\ c
   ill the pjafafaph^ hi low.  ll S'U"iP! ("I ie»drl* U' t,c«^;-i/^
   did! these  ;nf o'li'v e% aiupK's. nt:uiv  otiui n>>"il> Is \ \is)  nod i*:t
   appiicahihij, tit anv ;Tiodti *o jn K>s
   caul.>', ctiindnafi in !i\ ijiiaiiftod prolcsMort;tK
        'Hie  lotk-v t>f  P-)»''ic  li»t(';,»t,iv ttMh is  ,it ,."pi..};:iu t.i fi-.;
   ciinimiiints  iiii.isute-  ilut di.Mi'i^MshvS iii-,)uilH\i i'l-ni tnich^-
   Itr.btd •'nii.kvt.s'on MI n\^  S'ujtus ate scuied '.vit'i  u ,xpi\ i V
   10^cl\c metric1-tia.su! op thet'  "iniiiarUx in rii"iiinil!:1.IIv i pdi;-!ujK^

   t,t.hnrvs is seined >wat^j to (lie  nitxiinoni  >pi>.to-! rivhi cs\ ,r
   strains ol tho N .)i"' >'tdci in tlu  rep,t\ titcd  M>  ;>ni  "' SK
   iriict:ii!\( v'LiSM ,s(i,-\c< llei'i. j.'1'iid. t.u  \. SISKH iisongtoal do\ci.~.p
   MRnt. «>'Jier  . hive .id.ipted  IB? m a vaiiu\  o( uivicif

   asid notthern *."',5lriv>rnt < aii'' ^tiiancs ui! i u^i.iiia and i^i i'tc^a

        i in Supetfund ecu!*  gn'al a-,--! ^snuai^ >m( xlicaioi.s carM«:«
   IBI «c.«H'.S to «,\a'ni t»). Ilvivvr * ei', it If irrpoitaii* U
   en Iisi UK «'id ot She (H \t i \v!u ndK\-s siul
   ;i« MM. !'»r instance, in »li>viisaiT the  piu^K IM- a,ssoi.i.ti!.d -vi''

   which » m 'a.id |i  ii,Je\ antbi^uuv (i k, .  you Crinnof t. i! v* in ~n;


         lilt  •, L'iODp*' ,'.,' MMtlvilini" l\"I'O\.-n I»Y Jl'ifl 'II ll,l);XS,(lt'f  idij"!
   OH [In.  H";iii»i kvniit'•  shuii'd  s hLck   for 'he naaie •" th>  R FAG I'oonh.iiiui   p  diir ujv11'1  F '
   dei>"ri|nioi) ot SI -\u .-.triii tutf *i'ii "ipvii'iu.  eau"-. JK- titRVK'u !i> 1 h-
   Rok ol HI AC-^ ,n Ico'i^-cd, A^sc--iiiti-("  i/vt'* I'*.'.-".-,v V  o!  I,No I!
        ' Kjri  J H , l"a'isc»  k H  , Ait£' mi ,i r, P,i,   Vans, V K  :.iu i  1
        '' Smcr.'i M'., II  ","-H Lc'iioi t-11 Ki--!,'\^^\iiH«n 1 s «,,• p.il n1,1!
i   . rs, CI'1-iM.i, M)

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                                                                         !
     Hah;u- Fva'i'j;ii>n PuicfJiits (I'rV)  iv>\ sde a it,t'tnf-i< if    ,

«\ti'\ >UvcU>iM,i  Fi! I* to anah '%  *ho  li.i'iit i! impact^ ot  pi-iunoJ
laiJ .in,' \,';*(f r v'C"ot""»)t'Vit»v projfc.s, H.,-.\c\ii, IH '.' ;iki' v. >H
u.'.rd i<< (Mi r:iiiito tK- ,«nir-ii'if rt i.abii 11  th.in.'r  -I MI'JOH: hv'iv
.vnfin.s ii,o awn-no J iMscMiH. ei'ri.ku'•• >o iouvt a'u'l >•< mo ir,' \ ! if".f\' I '!-!' .opt :• om'oulh
I hi quaKlv  and qi'etm'iv nf  htiHui  fo>  >V'  v n v.,!tiliU' in.iU <(!•»;
p;L,i(iv)i<  nul i-.^'ji'i1.- n c-J \v M!C>:"> -na;, ji-jp
f'fr,',' \ i" ill 'l.lt JplMOiKll  ".S U ri'ift !C,1 t-i itil\<:l ^s.Uu'tn;^ im\!l»C!!
• it, js(ii .olt  iinf j'RHJi, inl'Sj.  ti.iHii.ii  ^t'-t,H,'«.  ,t,i'  >t ij-t(i.san> \ \'i-
ohl^s  ('in  ,fn'«  rtu  IK»  ,v»si.?.j!i'X-> in it  >vi|il|,fi p«i|Hjl.u .ii\ '.\iil
i'M-1 ji ihv1 ii/v^K pi, i!,(-kd b\ I'.^oiU,. ^pjiv-iC^. ,\iv>. l''C <<\ tii.ij
»ii>-:\ 'i-.tpphditik'ui''^  rot iht- « .\i'iit",pc> tcl\^\',iiu.-ti \' iiiM .H'«-rs
in1'.  r>i'\i^>uih  ri'i»K  itj i>fh,.r  ^il-'tifc svtxic-- at->nci'i(- il \\u(>
t'llur tv .ivy^i.-'ii c«>'i'ipotionH, h\r>i  it Itnliu^i is ofinioi  n>H!iili'
pi jiiil;Jt"iii-> inn\  :iof ems, Ncvsuhok.ss., u^fMii f!t'lfc^n ni-i> •:
-cii I'tifti  n'lv v»)inc), ^iij)i(a!>\r  s Jiernc11*1- aliiiui ini'^n'mt V m h-
iu'i ot .R'^C'^C fni}\;'.i'i -li'iou
IfJLlX-  'ti Mu  (Ji.n!i.u c v\-.(oi'! l\ii   'I.
pax-o.liU  i" 'ih<   v'iU'1   \ r.rriC'M'  f"S .l
('<>o 'li«ii<-- 'ii 1 1 'i. l"-' >'. i! e ,i\ 5 ,a|i ''it\ fit  ,
 r..xl:t,sli;v hi isp vieii  1,1 the Mif JIL
*h:ip I'HJV  ii-)^. it 'jit o, "v i  ii flu ^ unl.'itsv

Characterssjfics to
                                                 .t <'<'au!fior<.ih n tli
                                                 i"i ' ni:-'i>t • ,r«. »>tK
                                                 i,;'->oj 10 \  >I,,,I(IM'
din't'S(i|.f J In (hi LLxIXA r ice in ;rl cnKiiv r-nd nicrnKM
su!'j> Kk^l  Fluw inu Rock)  Mii-i-itam •,!rcTH'". in l\i,l*'li.\i hv a
'ish.'ucs Nvii!;.TtM "^ i)-> ii  li  MI i\J u^ CM" i'u wtnlr aoU »> kn--^ !-
tutucabH' «f«nn the tcoiogj of ,h.- n t:««i ^ \\ liu 1, is  is H- he tj".oi
      At tilt' f iXiii C«trk, < \il'^iJ(l»,  Saps ill rii! bi'C,  in\g>liL,,tu"li'«
UH  i" uit(.t'|jn  .is  iii  v*. hi ilu r  tkciea1-! tl tiout ni.pulniu'n1  \\crt
jstii^ttidhk' t j mcu'l'i d'MO'tv, i'uhuai (k-^uucnot), MI  l>otJ , ID ,dc(o'mincn IK i hot nH»Mc,' the pKs-ic;tl tlwsac-
iCfislKtsO' < "!> iirCltCk b>SM(i dL',n>)Sf id'.Ti1 < I  C , (("O'CHOt.} oMKil-
{•oris f>i) ittiui. '(ho >">/\\N'S  it'Xfs'igau^ti diriiiir;(uuru that fie
ru,T\'ng c,(paci'\  oi  ihe j>ii_,vic.il Xi^iUi <•>!' CK.'i  Otik  o. lu'J
Stiff"'! !'iu:eino!r,,T N.iiidpui5,i-«cr;.ot f->h tlinn VK re finit.J in firM
v  >' OS v tht icfiiir  itH(.stii;at"rs OiMicii.drd th.i? n  i >ck ni  fh \SK\I I
IkiKtrti  u'td ni  s i,.iiist" ihc  oh'.uvru" dccn >&>, »!1 i K"JI i iccl:  fK'i
      1 On, U X, "'"V  ; in i..in in i«';>l ;tii'n>-^— flifoi\  an.. f'u:''.:\ '
 * an -\t vii SCM nc<  I'uKiMitrs.  t'ir Aihos, M!
      1 U  \ (  sh inci \Vi(.M'.>  !-«--A,r    "IK,1 r^H-BTu!l.n  J ini  .ri^.i
t,".» Ti. K'umi f,f <.JK'I'>\ Oil ;i^  .,f f Ijl n.U F\ tin iti -11  t-V>u-.! in  s ri .
r-l'Mj'l'l'l'V il'H S M '.i,'1^ !,.! i ?){'"") ^  A,t (''(Mil ' 1  tVj'I.lt'l [l.'-lll'."
U i -in.r H> i .v r, (;, I    li. a'. o "i  ''tWr. T')  S'
       "io,KtiVi s , \  \> \< ••  x   ,tv'M.   --.,,   ''  u ;o,\ „. ,i _" ,ij,i
  '••^•.." fio!'•. i«nn '  !'a./i ^« . (I jr.i's ,""i. \. i.^'i^   '  V\i>  'i!.  ;!.'if
 ' 'i".i  ;*..,." i IP i, 'i.41,  -i" ,   M v,' '•    '• . .'M ^ii; . ,•  ^ •  i n  >  . .
 *' ' Jjf-" 'u,<-i  r "  ^K " <• -s ; v it . . "v  i -   rix '. ' ''  '^  " • u'  \
      I)i>l'"!p  ?.\;Hc !'  hn^L'u  ids ,il nU 'Ot'Ci l  s|, c! ?i, >*ic,  cii'1-'!1^ it, <.nO
b xil1  ;' i .,1 a^< o,- is i.'  t!L' Si pv , ! i in!  .it,  N i.ui U CUVIMIIJIH i1' o
tf-ii -.ctj-i ..;i'. N.ai ' A 'iv'-v, *-' <-^  »iiohj: ''to v.in;.  n-  u.s .  i 'irl-i
>(>;N,  ! hi '\ 'i'H\ III, ' t '  i  ini>  w  l|, !M|\  -i <  i;  ' 'nv'l Ji ti'- s "t
'.iciui itiiv fci'M^n u, .c H s, v. !•'(.,  i M'I ,n.J Uu  i'i(:-,,v !, il ,!Kd
      ! !>,- t)illf>« 1,11; p.ti.'^fAj)'1-, f>U >di: *>'"(}> •,'! t!M'  ,!~  1 1  It ti'!«>i|i -.
'"ue 'Hi^iK • ci«i'«: k,i ./.nti;,^ tiu   ck'-S',»n .. ' TV  trmnc Hit .us T-,

      Physic r-il Cli.iracferi'siics
      h,,i('>  \ri"iU' ih-o  mi",\ > sri irl. s j"C«tistilii v,  hc'i oh n,,v
It! ","i> <*i|tl.itlt. ',, i i'tii ,'iC I'lC kUfi'.nr i'o\\  U'liS iltlv! |\tllt(i<*-
pt, )h tl S^hnl  >i'.\>.l>H'cU I'XVC-t I' i (1,1s *, iHI (lU.il^ .(Id' ,i\'n l-l'li^, .U li"
ity, hi" IIIV'JN  "Ik.ii'i'i'v, ;.iij I'littiont «*. 'ni.i'itii^i'ufiN !'i motui; -i;i-
iii^KK",(tioti due i i '"%
>fiu;:g t-iMoladi-r. So TP^VI uuis1,  oti!i>a!'\  tr.il K'Km'.l OD\U"I
 iioiii.»! oh it;n < nMi.>  for c-u, uric »,  <,ih"it>  i'i'i«,ii",U'  ,i'ii1 tu1 1!
C\>.U^ t.'C i'THVittilt i .^iM(it'>,ii;Oris.
      <'l"sf,id>il  -;fca- >»lit ,1 «-«"Vij  is  u,v!u!  ;o>',.ropc>   n«, >."•),.%
hi O..UM  ;ln;\  ul(  [Kill "1  thi si.oi.  jiji; klh  iVMfin -iiul  '-(I* >! '*• i
j'S* , VR .1, t "• 'lnv",t.;i* ariu .ii-.U'iti  >" k',;i. \ sine La u> i'i i "-
f.ii ;hr >., p, t'viii ->'is  1 !  i'. )^  no-, ..•'•P ci^alK  ituo rst-uivn  'iVi

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                      Some Characteristics to Consider When Selecting Reference Locations.

                                       \Vp-, *  iHiK  «. In ''.i>s,'{s, vv
                                                                                   IUVC1.
                                                                                   pt'["C« l
           or Seve
     NV Ui'V U( (Mi,0  S'!" 'M.ifv'e, man tli,>'< v"'* mil" i r, 'n!i
     i I  RM X  >i^>  sek-. K\i  !<"•> «M;!. i inu;  «> >tfa:»! d ict,\
     •r,-)! n.1 (.'•'US i OU> siM.l  l.il'b h,  'IT.'", iitvr,  i|'\' I'tJifo.
     ,\sp> +itf c'viii'.dl iju' "K'.'
     I, 'u! !iv>- ninN  t\\,i ,' as .1 n  UK ir>, .^sk l»i -,»i!- n \\.i'>-;
     |> ViT, v(.!,Wpn,-t d "f (t   S.iM't.  soil I  p<  . - l!jat  1 •>  '.''I   1
     KM A
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