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CHRONOLOGY <br /> SEIBOLD CORPORATION <br /> 820 AMERICAN STREET <br /> STOCKTON CA 95205 <br /> 03/31/89 Scheduled removal of one 8000-gallon gasoline tank. Tank removal was <br /> not completed because of violations made to the approved removal plan. <br /> Apparent attempt by the property owner to disguise the location of the <br /> dispenser, the piping was not removed, insufficient dry ice was provided <br /> to properly inert the tank and the backhoe was not big enough to lift it. <br /> 04/03/89 Tank#3, 8000-gallon regular gasoline, removed this date. Contamination <br /> was noted under the dispenser. <br /> 07/26/89 Site placed in the Local Oversight Program this date. NOR sent to RP. <br /> 11/00/89 Reported over-excavation of tank #3 dispenser area. PHS/EHD was not <br /> notified to perform an inspection of the work. <br /> 01/18/90 PHS/EHD requested a Soil Remediation Plan/Preliminary Report be <br /> submitted. <br /> 03/0190 Tank #3 dispenser area re-excavated. Laboratory results positive for <br /> petroleum hydrocarbons in the soil samples. <br /> Tank#1, 2,000-gallon regular gasoline, removed this date also. Strong <br /> hydrocarbon odor noted in soil beneath the tank. Analytical results were <br /> positive for petroleum hydrocarbons. <br /> 08/07/90 Tank#2, 1,000-gallon diesel, removed this date. Laboratory results were <br /> positive for petroleum hydrocarbons. <br /> 10/22/90 PHS/EHD again requested that a Soil Remediation Plan/Preliminary <br /> Report be submitted (14-day letter). <br /> 11/07/90 Preliminary Report— Soil Sampling submitted this date. <br /> 05/24/91 Re-excavation of tank#2 area. PHS/EHD questioned the location of the <br /> sampling and condition of the samples, which were wet. High depth to <br /> groundwater is 30-feet bsg, the samples were collected at 15-feet bsg. <br /> PHS/EHD did not accept the sample results as being representative of <br /> site conditions. Analytical results were all non-detect, except for total Pb. <br /> 02/15/91 PHS/EHD requested submittal of a work plan by 03/15/91 and a PIER by <br /> 05/15/91. <br /> 08/02/91 PHS/EHD directive to submit specific information regarding the site and to <br /> submit the previously requested PIER by 11/02/01. <br />