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TABLE 1ANALYTICAL RESULTS OF SOIL SAMPLES: TTLC METALSFormer Pilkington North America - Lathrop Facility500 East Louise Avenue, Lathrop, California(mg/kg)Sb As Ba Be Cd Cr Co Cu Pb Mo Ni Se Ag V Zn HgVS-1 04/15/19 <0.50 1.4 72 <0.50 <0.25 12 5.5 7.5 1.6 <0.50 8.2 <0.50 <0.50 47 29 <0.050VS-2 04/15/19 <0.50 1.9 77 <0.50 <0.25 13 6.3 8.9 1.6 <0.50 10 <0.50 <0.50 49 33 <0.050VS-3 04/15/19 <0.50 1.8 58 <0.50 <0.25 12 4.8 7.1 2.0 <0.50 8.6 <0.50 <0.50 45 26 <0.050VS-4 04/15/19 <0.50 1.4 67 <0.50 <0.25 13 5.2 7.7 1.4 0.60 8.7 <0.50 <0.50 51 28 <0.050VS-5 04/15/19 <0.50 1.7 65 <0.50 <0.25 14 5.9 8.9 2.1 <0.50 12 <0.50 <0.50 52 35 <0.050VS-6 04/15/19 <0.50 1.9 72 <0.50 <0.25 12 5.2 7.8 1.7 <0.50 8.7 <0.50 <0.50 51 28 <0.050VS-7 04/15/19 <0.50 2.5 74 <0.50 <0.25 16 6.6 11 1.9 <0.50 12 <0.50 <0.50 65 36 <0.050VS-8 04/15/19 <0.50 2.3 61 <0.50 <0.25 13 5.7 9.3 1.5 <0.50 11 <0.50 <0.50 48 32 <0.050VS-9 04/15/19 <0.50 2.5 74 <0.50 <0.25 14 6.0 9.2 2.4 <0.50 11 <0.50 <0.50 54 34 <0.050VS-10 04/15/19 <0.50 2.2 57 <0.50 <0.25 12 5.1 8.3 1.3 <0.50 9.3 <0.50 <0.50 47 27 <0.050VS-11 04/15/19 <0.50 2.1 66 <0.50 <0.25 13 5.3 8.6 1.5 <0.50 9.6 <0.50 <0.50 49 31 <0.050VS-12 04/15/19 <0.50 2.1 64 <0.50 <0.25 13 5.2 8.6 1.5 <0.50 10 <0.50 <0.50 47 30 <0.050VS-13 04/15/19 <0.50 3.2 75 <0.50 <0.25 14 6.1 9.6 1.8 <0.50 12 <0.50 <0.50 50 35 <0.050160 0.31 220,000 6,900 4,000 1.8+6 1,900 47,000 380 5,800 64,000 5,800 5,800 5,800 35,000 19011 0.067 15,000 1,600 910 120,000 420 3,100 82 390 15,000 390 390 390 23,000 13- 0.36 - 6,900 9,300 170,000 - - 320 - 64,000 - 1,500 1,000 - 4.4470 3.0 220,000 2,300 980 1.8+6 350 47,000 800 5,800 22,000 5,800 5,800 5,800 35,000 46500 500.0 10,000 75 100 2,500 8,000 2,500 1,000 3,500 2,000 100 500 2,400 5,000 20Notes:-: not analyzedmg/kg: milligrams per kilogram TTLC: Total Threshold Limit Concentration<1.0: below reporting limitESL San Francisco Bay RWQCB Environmental Screening Levels-for commerical/industrial shallow soil exposure Jan. 2019DTSC-SL Department Toxic Substace Control (DTSC) HERO Note 3- Sreening Levels for commercial/industrial soil April 2019EPA-RSL US EPA Region 9 - Regional Sreening Levels for industrial soil November 20186010 EPA MethodSb: Antimony Pb: Lead Zn: ZincAs: Arsenic Hg: Mercury Cu: CopperBa: Barium Mo: MolybdenumBe: Beryllium Ni: Nickel V: VanadiumCd: Cadmium Se: SeleniumCr: Chromium Ag: SilverCo: Cobalt Tl: ThalliumDateSample IDDTSC-SLCA Hazardous Waste LimitsESLEPA-RSLESL (Residential)