- Bechtel Environmental, Inc. 1,._..-c-ln,lelolrl

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Hay l , 1919 IIPA- 01

Lynna rratua lnvuomntntal lng1naar UIIPA Jrx radan l 1u1ldin9 lolton , KA OllOl

IUIJZCT : ltchul Job No 19161-101 Picillo farm !!lte 0 & H -aTRAJISHI'fTAL Of AIR HOMITORING DATA -n =

AI you requaattd., tht u r monltonng data gathered dunng ramadul aeuon at the Pleillo Farm uta hat aurnmer u attached . For your = informat1on, Table 1 contuna a luting of the volaule organ1c = compounds reported to be pra..nt 1n the PCI pile .

During tha work , tot.l a i rbo rne concantrationa of or9an ic vapors 111eaaund wi th an Orguic Vapor Analyzer (OVA) ranged from 0 t o 13('1 p•ru par rulllon (ppm ). Sptcltlc: expoaura concantrauona are lilted 1n Tabha 1 and 2.

The i ndirect umple results ware obtained to daterm1na potentu l tu1e we19hted averag~e expoaurea . Due t o the unknown chem1cal concentrauona in the 10111 and the awiftne11 of the evacuauc;; proceaa, lt waa decided to baa• re1p1ratory protecuon controla on the total org~an1c: vapor analyau determ1ned wlth the OVA or T1p II and from apec:iflc: analyaia deter11ined from Dra9er tubu . One (1) ppm deter1111ned with the OVA or Tip II wa a chosen as the ac:t1on level unce it 1s the permusibh upoaure llmlt for benzene and vinyl chlorlde . Uung thu critenon , no exposure to organ1c vapors occurred for the enure wor k effort. Damp 10111 proVlded bauc duat control and consequently maintained PCB and phenol expoeurea to eseentially nondetected values .1:)

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Lynne rratua kay 2, Ult Pa9• Two

If you have any quaauona or r•quue additlonal lnfor•auon, plea.. contact •• a t 1615) UZ·H52 .

Vary truly yours ,

i~.<~ Project ln9inaer

Attach•anta

XaVln Holtzclaw -a David GrahaM Leonard Paaculll n -Barbara Cohan Paul Laabart = Harold Hastnaa = ca

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