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Table 1Soil Analytical Results – 2019 through 2022Additional Site Assessment Report and Human Health Risk Screening EvaluationSurland HomesTracy, California4.5 12/30/2019 < 2069< 0.0050 < 0.0050 < 0.0050 <0.010 < 0.00509.5 12/30/201983 1,400< 0.025 < 0.025 < 0.025 < 0.050 < 0.0254.5 12/30/2019 < 40250< 0.0050 < 0.0050 < 0.0050 < 0.010 < 0.00507.5 12/30/2019 < 100300< 0.025 < 0.025 < 0.025 < 0.050 < 0.0255 10/6/2020 <2023<0.0050 < 0.0050 < 0.0050 < 0.010 < 0.00508 10/6/2020 <100360<0.0050 <0.0050 <0.0050 < 0.010 <0.00504.5 2/23/202220.8 382<0.00163 <0.00813 <0.00406 <0.0106 <0.02035.5 2/23/2022349 1,190<0.001580.0248<0.003940.00210 J 0.06345.5 (DUP1) 2/23/2022223 476<0.001650.0200<0.00413 <0.01080.0695-- -- 1.9 -- 21 -- 9.7-- -- 2.8 -- 32 -- 9.7-- -- 0.33 -- 5.9 -- 3.8430 260 11 1100 3400 580 130Notes:Qualifier:1. Detections are in boldJ = The reported value is an estimateDetection exceeds the SFBRWQCB noncancer ESL.References:Abbreviations and Acronyms:SFBRWQCB. 2019. Environmental Screening Levels, San Francisco, CA. < = analyte not detected above the laboratory reporting limitsSWRCB. 2012. Low-Threat Underground Storage Tank Case Closure Policy. August 17.-- = not applicablebgs = below ground surfaceESL = environmental screening level (SFBRWQCB 2019)ID = IdentificationLTCP = Low-Threat Underground Storage Tank Case Closure Policy (SWRCB 2012)mg/kg = milligram per kilogramSFBRWQCB = San Francisco Bay Regional Water Quality Control BoardSL = screening levelSWRCB = State Water Resources Control BoardTPH-d = total petroleum hydrocarbons as dieselTPH-g = total petroleum hydrocarbons as gasolineNaphthalene mg/kgBoring IDSample Depth (feet bgs)Sample DateTPH-d Total Xylenes Benzene Toluene Ethylbenzene LTCP Residential SL (5 to 10 feet bgs)B-13TPH-g SFBRWQCB Residential ESL (noncancer)SFBRWQCB Residential ESL (cancer)B-14B-16B-12LTCP Residential SL (0 to 5 feet bgs)1/1