SITE INFORMATION AND CORRESPONDENCE_FILE 2

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Investigative Report CAL/EPA Complaint#11917 Page 2 remediation of the petroleum contaminated site located at 4075 E. Main Street, Stockton, CA, Jamar Service, SJC Site Code:1667, CVRWQCB (Region 5S) Site Code: 390142. (C) reports she has contacted the local water company twice to conduct water sampling and she has not received any results from the sampling events to date. (C) reports a plume is under her home. Summary of Actions and Response to Complaint On Wednesday, August 21, 2013, a joint inspection was conducted by representatives from SJCEHD and CVRWQCB in response to CAL/EPA Complaint #11917. Lisa Medina, SR REHS and Jim Barton, PG left the EHD at approximately 12:15 p.m. and arrived at Jamar Service located at 4075 E. Main Street, Stockton, CA. Upon inspection of the facility, all remediation systems appeared to be operating. The complaint was discussed and representatives walked to the complainant's single family dwelling located approximately eighty-five feet north of Jamar Service site. Lisa Medina acted as the lead person for the investigation and introduction at the request of Jim Barton. Ms. Terri Hernandez answered the door, introductions were made and the complaint was discussed with Ms. Hernandez. Permission was obtained by Ms. Hernandez to conduct an on-site inspection for confirmation that a domestic water well did not exist on the property. Ms. Hernandez states that she has lived on the property for thirty-two years and has always had a public water supply. Lisa Medina and Jim Barton surveyed the front and backyard of the single family dwelling (see picture Page 1). No evidence of domestic water well(s) was observed. Ms. Hernandez requested representatives from SHCEHD and CVRWQCB walk with her to Jamar Service site in order for her to show us where allegedly "gas tanks are still buried and located on the west side of the parcel". Representatives from SJCEHD and CVRWQCB walked to the site and explained to Ms. Hernandez that the tanks had been excavated and removed. Ms. Hernandez stated that she had concerns regarding a waste oil tank that was historically located at the northwest side of the service building. Ms. Hernandez was informed the waste oil tank had been removed. Ms. Hernandez was given a brief summary of the remediation system and how it is operated and maintained. Jim Barton explained the methodology of the remediation systems in detail. Ms. Hernandez acknowledged she understood the process. Representatives and Ms. Hernandez walked back to her property where she wanted to show us where oily water was "gushing" from her water spigot recently. The spigot is located in the front yard at the southeast corner of the single family dwelling (see picture Page 3). Ms. Hernandez also reported she had samples to show us and brought out a plastic container of items including a cloth-wipe, Q-tips, plastic bag(s) of unknown substance and a plastic part of unknown origin (see picture Page 2). Ms. Hernandez requested that representatives observe the oily ring in the toilet holding tank and toilet. Representatives at that time escorted Ms. Hernandez to the single family dwelling restroom. The toilet bowl did not demonstrate any evidence of an oily ring. SJCEHD and CVRWQCB representatives observed Ms. Hernandez lift the tank cover and retrieve clean Q-