KUWAIT ASSESSMENT OF POTENTIAL GROUNDWATER CONTAMINATION

File: 970107_sep96_decls52_0001.txt
Page: 0001
Total Pages: 7

Subject: KUWAIT ASSESSMENT OF POTENTIAL GROUNDWATER CONTAMINATION        

Unit: OTSG        

Parent Organization: HSC         

Box  ID: BX003205

Folder Title: EXPOSURE CALCULATIONS                                                                           

Document Number:          1

Folder Seq  #:         19


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    t, j"T F                  I  S I Ii t I I erg a me
                        t4A
                        N@4 .
                        @,UWAIT County

             @,'Lt I-J 8 i tassessment o-r potential groundwater
             contamination with petroleum hydrocarbons.
             based upon premise that wells (water & oil)
             will be blown upon exit.



    I..O Approach
    't'he prc)cecli.ires used by RISK*ASSISTANI' to Ci%ICLkikte eXr)OSLtres hxve been
    reviewed by the Office of Health and Envi.ron(iieiiti;l Assessment of the tt.S. EPA.
    I)ef.lLtlt parameters for Calculating exposures have beer) extracted from EPA's
    1--%^'F'(')SURE FACTORS HANDBOOK (EPA/600/8-89/043; March 1.909).
    T-tie Ltse-r Of this software Should confirm the reliability and appropriateness of
    (-nvj.i-oi-imental concentration data used as a starting point for the exposure
    ,7.alc:t.tlat4-ons, a;d Should indicate the rationale for ma@.,.ing changes to EPA-
    supplied default Values for exposure parameters.

    2.0 Sample Data
    F@ISK*ASSISTANT offers the user a variety of ways to aggregate sample data 'for
    use in its analyses. The user may select a single sample in an environmental
    PiediLtM (GROUNDWATER, SURFACE WATER, AIR, SOIL, SEDIMENT, or BIDTA), or may
    calculate the MAXIMUM, ARITHMETIC MEAN, or GEOMETRIC MEAN of either a SUBSET
    of the samples in a medium or of ALL SAMPLES in that medium.                   When Calculating
    mean concentrations, NON-DETECTS can either be IGNORED (equivalent to setting
    rion-detects at the average value for samples with measured values) set to DNV-
    HALF OF THE SAMPLE QUANTITATION LIMIT, or set to the SAMPLE QUANTITATION
    LIMIT. The aggregation method, as well as the actual sample data set entere@
    into RISK*ASSISTANT for a site, will strongly influence the results o-i Any
    subsequent analyses.       The following table lists the media considered in this
ple set
    included in the aggregation, and the approach used to deal with chemicals that
    were only detected in some of the samples included in the aggregation.

    MEDIUM           AGGREGATION         SAMPLE SET           TREATMENT OF
                     STRATEGY                                  NON-DETECTS
    Groundwater      Single Sample

    CONCENTRATION    OF CHEMICALS IN ENVIRONMENTAL MEDIA COVERED BY THIS ANALYSIS
    MEDIUM         CHEMICAL NAME                                         CONCENTRATION (UNITS)
    Groundwater
    7664-41-7     AMMONIA                                                   17.000     (Ltg/1)
    7440-36-0     ANTIMONY                                                   3.000     (ug/1)
        71-43-2   BENZENE                                                    5.000     (ttg/1)
    1319-77-3     CRESOL                                                    22.000     (ug/1)
     110.-54-3    N-HEXAt,[E                                                176.000    (Ltg/l )
    7783-06-4     HYDROGEN    SULFIDE                                       14.000     (Ltg/1)
        91-20-3   NAPHTHALENE                                               52.600     (Ltg/l.)
    ';.3463-39-3  NICKEL CARBONYI-                                           0.120     (ug/1)
     108-88-3     TOLUENE                                                 2000.000     (ug/l.)
     108-38-3     M-XYLENE                                                  20.000     (t.tg/1)
        95-47-6   O-XYLEHIE                                                 20.000     (ug/1)
     106-42-3     F'-XYLENE                                                 20.000     (ug/1)

Document 7 f:/Week-36/BX003205/EXPOSURE CALCULATIONS/kuwait assessment of potential groundwater conta:01029715474153
Control Fields 17
File Room = sep96_declassified
File Cabinet = Week-36
Box ID = BX003205
Unit = OTSG
Parent Organization = HSC
Folder Title = EXPOSURE CALCULATIONS
Folder Seq # = 19
Subject = KUWAIT ASSESSMENT OF POTENTIAL GROUNDWATER CONTA
Document Seq # = 1
Document Date =
Scan Date =
Queued for Declassification = 01-JAN-1980
Short Term Referral = 01-JAN-1980
Long Term Referral = 01-JAN-1980
Permanent Referral = 01-JAN-1980
Non-Health Related Document = 01-JAN-1980
Declassified = 02-JAN-1997