ARCHIVED REPORTS_DRAFT - PHASE I REMEDIAL INVESTIGATION REPORT

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�I . E Kennedy/Jenks Consultants ( Table 6: OU-2 Soil Sample Analytical Results - Metals t Analytical Results(a)(englkg)tbi Sample Area of Sample Interval Sample Interest Location Name ft bgs (,:) Date Sb As Ba Be Cd Cr Co Cu Pb Hg Mo Ni Se Ag TI V Zn Gal/EPA PRG industrial/Residential 4101 0.251 67,0001 1,9001 4501 450/ 1,9001 41,0001 8001 3101 5,1001 20,0001 5,1001 5,1001 671 1,000/ 100,0001 _ 31 0.062(°) 5,400 150 37 210(0 900 3,100 150"' 23 390 1,600 390 390 5.2 78 23,000 Cal/EPA CHHSL191 Commercial/industrial/Residential - 3801 0.241 63,0001 1,7001 7.51 (100,000/37)/ 3,2001 38,0001 3,5001 1801 4,8001 16,0001 4,8001 4,8001 63/ 6,7001 100,0001 30 0.07 5,200 150 1.7 100,000117)n) 660 3,000 150 18 380 1,600 380 380 5.0 530 23,000 AO 17 S4 OU2-A017-S-4-011 0-1 01/04/06 <2.0 5.8 68 <0.50 2.0 _ 15 6.0 79 48 <0.049 1.8 16 <2.0 <1.0 <1.Q 20 92 Cont'd OU2-A017-S-4-213 2-3 01/04/06 <2.0 2.8 130 <0.50 0.84 17 7.4 16 5.9 <0.048 <1.0 26 <2.0 <1.0 <1.0 18 32 OU2-AO17-S-4-516 5-6 01/04/06 <2.0 3.7 _ 160 <0.51 1.1 23 8.5 20 6.5 <0.050 <1.0 30 k <2.0 <1.0 <1.0 24 37 OU2-AO17-S-4-10111 10-11 01/04/06 <2.0 3.9 140 -<0.49 1.1 23 8.7 20 5.7 <0.050 <0.98 29 <2.0 <0.98 <0.98 _ 29 34 85 OU2-AOl7-S-5-011 0-1 01/04/06 4.7 2.9 61 <0.48 1.3 13 6.4 160 330 0.093 <0.95 23' <1.9 <0.95 _ <0.95 34 190 0112-AO17-S-5-213 2-3 01/04/06 <2.0 4.1 160 <0.50 1.1 24 7.9 24 11 <0.049 <1.0 29 <2.0 <1.0 <1.0 27 -- 40 OU2-A017-S-5-516 5-6 61104106 <2.0 5.4 160 <0.50 1.3 27 9.2 26 9.6 <0.049 <1.0 35("l <2.0 <1.0 <1.0 30 43 OU2-AO17-S-5-10111 10-11 61/04/06_ <2.0 1.4 71 <0.50 0.52 9.4 3.7 10 3.9 <0.049 <1.0 13 <2.0 <1.0 <1.0 18 18 A018 S1 OU2-AO18-S-1-010.5 0-0.5 12/14/05 <1.9 3.1 190 <0.49 1.8 12 10 110 51 <0.050 <0.97 13 <1.9 <0.97 <0.97 56 46' OU2-AO18-S-1-1.312.3 1.3-2.3 12/14/05 3.5 14 120 <0.48 1.9 26 9.7 89 180 0.20 <0.96 32 <1.9 <0.96 <0.96 37 190' _ <0.49 1.9 19 8.3 120 260 OA94 <0.98 34 <2.0 <0.98 <0.98 36 150't- S2 OU2-A018-5-2-010.5 0-0.5 12/14/05 4.5 14 15Q i OU2-AO18-S-2-112 1 --2 12/14/05 <1.9 3.4 130 <0.48 1.1 23 7.9 18 6.0 <0.049 <0.95 30 <1.9 <0.95 <0.95 25 37` (a) Samples analyzed for Title 22 metals using EPA Method 6010. (b) mg/kg =milligrams per kilogram. (c) ft bgs=feet below ground surface. (d) US EPA PRG = US EPA Preliminary Remediation Goal for Industrial Soil and Residential Soil(http-//www.epa.gov/region091waste/sfundlprg/files/04prgtable.pdo. (e) California modified PRG. i (f) Total chromium, assuming 1:6 ratio of Cr 61Cr'3. (g) Cal/EPA CHHSL=California EPA California Human Health Screening Levels for Commercial/Industrial Land Use/Residential Land Use(http:l/www.calepa.ca.gov/Brownfields/documents/2005/CHHSLsGuide.pdo. (h) Cr+3/Cr+6. (1) Zinc detected at 0.075 mg/l in equipment blank. 0) D=Laboratory notes"Surrogate or matrix spike recoveries were not obtained because the extract was diluted for analysis; also compounds analyzed at a dilution will be flagged with a D." l (k) Nickel detected at 0.0085 mg/l in equipment blank. I i i I r DRAFT Phase 1 Remedial Investigation Report Page 2 of 2 { Former Tracy Railyard, Tracy, California gtis-group�adminy"oh10510565777.i8_uprrifl9-repodsln'rprita6fesStabfe0&.dac