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Me Soil gas analysis for VOCs should be performed in accordance with the protocolsMemm/ GCMS am as - GC M.1nom noted in the respective USEPA method(s)concomitantly with the specific Paramefer U EPA a260 USEPA TO- Modified Modified Modified COMMENTS requirements for soil gas samples outlined in Table 1. Parameters not listed 16 USEPA TO-17 USEPA 8016 USEPA 8031 should be followed as stated in the original USEPA method. valldieea. See AAppendix F For a more detailed discussion on the various types of modifications and other I this applications,consult Appendix F. gu'danOB. Table 1:Preferred Analytical Methods and Modifications* Mwksal MM-levo Mmaamal Mid-level 0 3Mthods GC Methotle Mid level calibration wlbratbn calibration crAbotme callbrmon MetM1otll Madlnetl MaRae MuffedConMnalnp smndard run avey atareard run sanderd atarpatl n standard run • Parameter USEPA TO- EPA TO Modified Modified COMMENTS 12 hours. every 12 every to a 12 USEPA 8380 16 USEPA TO-ll USEPA BOi6 USEPA 8031 Cellbratlon' Use memotl ndms -.Pk baton t b�'Boug12 cceplartceuixk Use pushed (Section l2 of Use metM1otl Use rnaNatl Most VOCs: Mps VOCs Most VOCs: arcaMenca USEPA TO- acceptance aweptarKe Most VOCs: wn0rme0on smsed wnrVmeOon «I1ede. i) vituk, oiler e. nNmaffon wmpDlp Ae aceppblundes 'imaetl See A ifintabllft/Anal sampling fie Ne N.Mdm m Appendix Al reformer, At minimum, Y Ytes pmmelene concentrations 11 bei of NapDMelerre of iM1h At m n mum vap«phase vap«phase NapM1lDabmarnew shoub De VOLS; shodo De Na vzpu -v pber valmr-pn V. fee are dance f« De per/«med DY perM'ned6Y predetermined gasollrvl}PH dbY 9u vapor Phase _ USEPA TO-17, USEPA TO- hyamother USEPA TO. discussion, vat tlathena eck Phase -`r tl. check dm mes it fl t> rr motl it sfermam an ad Nat �ndard Calibration Validatere o' Validation edWfxad tl nalyzed and Gavels Samples and evaluated for cable. wlkckd In Samples eacM1 newaelldetlon mow' nodded for evaketetl lw evaluated l« prepared Modified passlveled pulledburi n Modified Modified $ee curve(%Dlfl«ence liquid each naw aatlt naw wilnvaplr- SampleIntroduction PM MDa canisters; search,nock. Pur and- qIr AppenMxF 520%. Technique Purge ge.antl- 1 stanaaras abali°n caXaetmn phase qua (USEPA 503pf VOCs are lM1artwlly vap(USEPA Vap(USEPq of thio calve l% (% No a. concentrated demor5etllm, 5030 Mance for O81erer¢05 Difler«oes on solum C.C. ) SUW) discussion. MM-level Mltl4evel 1 level va callipmen Midlevel wlibraion eallb so To 4 Mitl-level calibration santlartl run calbraf aetermll H standard pen lm in, Itpumud run firm,.,it me standaramn mbrrtatlat�i see End or Run earn 20 sample br eacM1 20 Im each 20 Re each 20 Tobe of facts: Pugeand- AppandisF Calibration Check batch or et antl ql sample ha¢M1 sample betcM1 ssmpk baton sample batch Rage-aruF tre 5 w or this u a1 end of Purge aid trap: delermlretl erbent do,5 b p' yon[¢for un,Micbever is run mal end of w al and d «at entl d Sample Size 5b250 mL ltd dally sample seb&ed term 250 mL(w) Isee250 mL lG:1 docusslon. re oM1en. Mich er is ne air eonea whlcM1enar lz w0lcM1evar,is (See Appondx Flor deph, (See more Chen. APPento F more open. m«eoflen. dlzcu. n) tampirm antl humendr APpantldF oillllun ma san pendadan, lypk«IN I to 4 dscussknl i cusskn) ��1 p As per Seition 5 9 of To beAs e OpBonal. O Section 5.10 knits to be Sample Sefe 66giMek Surzogetea USE PA8260. fKmenal. tl&«mked &USEPA determined Sammlee suspected. lab.« &USEPA Volo DeMb6-0G MetM1atl Velltlafion Pl ASPer SMbn B.Id Sedlotl e.4& 9A forUSEPA sesAe -Adsion 0.4 Section 8.4 As Py Ash ernme 130%. . USEPA BOpOB USEPA 00008 &USEPA &USEPA errorsxtlon SAO Sommer, sections Tone Asper - W00B 00000 80'3013 Internal Standards of USEPA B2Eo. 9.22.34 6.12.2 and 9A de arm Smion 5.9 JW15. ese USEPA TO- of USEPATO- be, I.la &USEPq Min(mure d5 standards 15. 17, 8021. kvals.lpeandand Sad M(&mum&5 kvela.�tkg Mlnlmum 45 Minimum d5 AlessiF Mlnlmum d 5 form&s, levels,mars) Use memod (evals,Imes, levels,bees, &this west at Narbonne, at Reponbg acceptance at Reporting at Reporting guWar.I« Initial Calibration level. kv&, «hark. level, level. g d Atturacy/Pradsian-. see sae discussion. Use meMed Use humped Rekatled Use method Use melhed Matdx Spike/Matrix See Appendix F d OP1brIe1 O Appendix F opponents F err «Y cceptaoee«Ikio. accordance rxWmd accordance coeptan¢e 5, Spike Duplicate lM1isgultleted. Wonal of this or this Mance uh«k. standard «0etle. «l1«k. guidance. guidance, `hits to betubas may ba preeminent usM sed calibration. laion IS -70- 130%. 1613016. %RPD-25%. 3/3/2010 -37- 3/312010 -38-