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_22M _ 3$^-....:�. �.xF'rt. 5�ix, rez.. i '�!''lr :. .fi�cr��F"""�' ._..: .' ��.�"fi'k�'$1:x=.'',T�`A,e��?%�f:P fz�_--_�° x-.+.°�3;��t�`. '� � .,... - ... i: �.�ir:� •� �a3- 14 �`%��.. g'��-. �-v+..zq. i. ,car.. _�''t• t y,_.. - ��`v - � �' .c.'t`5, ».-�iy rc" c"'� __ sR.,. e` +- .:�r-,v+'§' .u - - - SAMPLE 11AN lLit:C 1'I2OCI:IIUItE.'S Solid sample mnterini in captured by rkclvnncing the linear into the boil. 'thin may be done by pushing the liner Into #aft mile or by containing the liner in n drive shoe which earl be ndvnnced and then retracted by means of a slid* hammer, Tho open and# of the enmplp liner are covcreid with aluminum foil and Plastic and calla. rxcdaa alumielurn full In removed and the adge of the plastic and caps is tightly sanled against the outer aurfacc of the brasoc liner with an unbroken wrnp made with a tape which has been tested to confirm that it dues not contribute compounds that would be detected in the type► of analyses Intended for the *,ample contained inside of the brans liner. The brass liner to then labeled with US* appropriate identification numbers which specify the sampling activity designation number, nample collection area, depth etc, that apply to that particular sample. The aamplo liner Is then placed in an Ice chant which contains pre-frozen blocku of an Inert Ica aubaatituto such a Blue lco or Super Ice. l Water samples are collected In any of several appropriate devices Ruch on bailers, Coliwanns, Middleburg sampling pumps etc. which are described in detail only an warranted by their employment at a given site. Sssaple liquid is decanted into now sampla containers in a manner which reduces the loss of volatile constituents and follows the applicable SPA proc:adurea for handling volatile organic and carni-volatile compounds. Only two variations from the EPA methods are generally employed. First, provervatives Is added to the aample container prior to addition of the aramplo liquid. This method was pioneered by Stoner Laborutories in 1982 and subsequently adopted by laboratories and environmental consulting firms as a practical means of " reducing the time that it liquid to allowed to aerate prior to closure of the sampling container. Second, because tests have shown that the preservative readily [nixes with sample liquid, gtara stirring rods are not used to agitate _ the sa mple/prerserva:titir mixture. SAMPLE DESIGNATIONS All samples containers are identified with both an activity number and a discrete sample identification. Plenae note that the activity number is the number that appears on our chain of custody. it Is rcagh;y equivalent to a job number, but applies only to work done on a particular day of the year rather than spanning several days as an actual activity often docs. This (a followed by the sample T.D. number which Is usually a simple number such as $1, $2, 03. CIiAIN OF CUSTODY Samples are continuously maintained in either a chilled icer cheat, refrigerator, or freezer from the time of collection until acceptances by then State certified hazardous Maternal, Testing Laboratory selectee[ to perform the analytical procedures. It the samples are taken charge of by a different party (such as another person from our office, as courier etc.) prior to being delivered to the laboratory, appropriate rolvane .and acceptance records are Samplinx Report 83306-M-3 Chevran 1918 SECTION FOUR/page 8