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L <br /> Former Exxon Service Station No. 73942 Page 2 of 4 <br /> 4444 North Pershing Avenue December 23, 2014 <br /> Stockton, California 95207 <br /> • Screening for volatile organic compounds (VOCs) in the soil samples collected during <br /> the advancement of the borehole using an organic vapor meter equipped with a photo- <br /> ionization detector (PID); <br /> • Submitting a minimum of two soil samples for chemical analysis, based on field <br /> observations that include changes in lithology and soil staining, and VOC concentrations <br /> detected with the PID; <br /> • Analyzing the selected soil samples for total petroleum hydrocarbons (TPH) as <br /> gasoline (TPHg), TPH as diesel (TPHd), the full scan of VOCs that includes benzene, <br /> toluene, ethylbenzene, total xylenes (BTEX); methyl tertiary-butyl ether (MTBE); ethyl <br /> tertiary-butyl ether (ETBE); tertiary-amyl methyl ether (TAME); di-isopropyl ether <br /> (DIPE); and tertiary-butyl alcohol (TBA) by Environmental Protection Agency (EPA) <br /> method 8260; poly-cyclic aromatic hydrocarbons (PAHs) and semi-volatile organic <br /> compounds (SVOCs) by EPA method 8270; Title 22 metals by EPA method 6010; oil <br /> and grease by EPA method 1664A; and polychlorinated biphenyls by EPA method <br /> 8082; and <br /> • Submitting a report of findings. <br /> On 12 December 2014, Nuel Henderson, PG, Adrienne Ellsaesser and Vicki McCartney of the <br /> EHD met with property owners Joylyn and Ron Novacek, their daughter, Dayna Nielsen, their <br /> attorney, Jeffrey Hawkins of Isola Law Group, LLP, Jennifer Sedlachek of ExxonMobil <br /> Environmental Services Company (ExxonMobil), and Jim Chappell, Greg Gurss and David <br /> Daniels, PG, of Cardno. <br /> The following topics were discussed: <br /> 1. Property owners' desire to sell the property and their concern that future land use <br /> restrictions may be imposed on the property, potential difficulty for prospective buyers <br /> to obtain loans on the property, and receiving maximum financial compensation on the <br /> sale of the property without the "No Further Action Required" letter from the EHD; <br /> ExxonMobil stated that no deed restriction will be required on the sale of the property <br /> since ExxonMobil will continue to be liable for the cleanup of the property into the <br /> future unless the site becomes another gas station; that redevelopment of the site can <br /> take place during remediation and that ExxonMobil can assist the buyer in procuring a <br /> loan; the EHD explained that restrictions such as no basements, no childcare, etc., can <br /> be placed on the use of the property but the EHD can not stop the sale of the property; <br /> 2. Cardno's rescission of their proposal to inject the chemical oxidant, PersulfOx, to <br /> remediate petroleum hydrocarbon contamination at this site since the Regional <br /> Board's notice of intent (NOI) for waste discharge requirements were deemed too <br /> onerous. The EHD noted that the Regional Board wanted observation and compliance <br /> wells closer to the injection site to check for adverse changes and reactions from <br /> injecting PersulfOx, but Cardno was concerned about unknown metal bi-products that <br /> may be created by injecting PersulfOx and the expense of removing the added <br /> contaminants; however, Cardno would like to discuss this matter further with the <br /> Regional Board; Cardno has proposed no new remedial alternatives now that <br /> Exxon MobiI/Cardno has removed PersulfOx injection from consideration. <br />