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Wllt(!r It"Mill its aT1Y Of iieveral opproprinto device" such at' Wa (ire colirctcd blidera, coliwilfoll;, Middlobtirg wimpling Pultillu (Ac. Whicb tire &!Iicribed it, (14!tjiil only at, warranted by their emploYlrient lit 11 ifiv011 '"te' '911"14y lieluici .r which roduceu the loti!' Of int dl!calited filto TJ(!W GlimlAt! contisinarit it, 11 inanno volatilo constiLtle"t-1 and f011owil the floplictible EPA procedures' for litindling vcflatilc! organic rind i;vmi-volatilo compoundii. Only two variations from tile FVA methodu are generally employed. Fit-tit, preservative In added to the Wimple cotitainer prior to addition of Lht! HaMPIC liquid. This method waif piesnesericE by atorieti in 1982 usid siubsequentlY lidoVt(,d by Stoner Labor loboratoricH rind environinental contsulting firms lit: Ii practical meant; of reducing tho time tllttt 11 liquid is allowed to aerate: prior to cletture of 010 sampling container. Second, becauile teiftu hl%vF' shown that tile pre.,4ervilLivi, readily mixe-t with stimpEetliquid, gla-m utirring rodi; art! nut used to agitate the . sample/premerviitive mixtures. SAMPLE. DPSIGNATIONS All samples container.% are identified with both an activity number and is discrete sample identification. pleatie note that the octivitY number is the number that uppearfl on our chain of custody- It is roughly eqUivi'llent (0 a job number, but applies Only to work done oil it particular day of the yrnr rather than spanning fieveral days; nu an actual activity often docs. This is followed by the saml)10 1-1). number which i. .1 ugually a simple number taich its ol, 42, 03. CHAIN OF CUSTODY Samples tire continuously maintained in either a chilled ice chest, refrigerator, or freezer from the time of collection until acceptance by the State certified hazardous Materials Teiiting Laboratory selected to perform the analytical procedures. If the samplen are taken charge of by a different party (such as another person from our office, courier, etc.) prior to records being delivered to the laboratory, appropciate rea lease and acceptance Oro made on the chain of custody (time, date, and signature of person releasing the samples followed by the time, date and signature of the person accepting custody of the samples). LABORATORY IDENTIFICATION NUMBERS Following receipt Of the samples and completion of the Chain of Custody form, the laboratory then assigns their own identification numbers to the samples. Different laboratories use different numbering systems and, according to their own internal conventions, may or may not assign sequential numbers to crumples which tire placed on temporary "hold", pending the results of other analyses. Laboratory identification numbers (if assigned and available) are d -will-bf---..found on.the.certified analytical report -----------1ncltjdedJn-theTADLFe-an ........................ by the analytical laboratory.. Sampling fleporL 88342-C-1 CHEVRON 1918 SECTION FIMP1390- 10