Laserfiche WebLink
02 /19/ 02 14 : 29 FAX 916 372 4 :^W Wallace-Kuhl � � Q003 <br />�I CRYSTAL CREAM & BUTTER COMPANY <br /> 404 West Fremont Street <br /> Stockton, Calfomia <br /> Page 2 . <br /> Based on our research, we feel ozone injection will be a superior system to vapor <br /> extraction/air sparging because it will act to break down hydrocarbons and fuel <br /> oxygenates in place. In other words, we will not be required to permit the system with <br /> the local air quality authority nor will we have to use a carbon polishing system to scrub <br /> the effluent stream. In addition, the use of lower pressure systems reduces the likelihood <br /> that groundwater mounding will be observed beneath the site. <br /> The system we propose will have 10 points and will be operated off a single compressor <br /> and ozone generator hard-wired to an electrical source. All plumbing will be below <br /> grade to prevent vandalism or on-site wear and tear. The ozone generator/compressor <br /> comes as one compact unit and can be easily mounted to a wall or a fenced area. Finally, <br /> the device operates in virtual silence and has proven to be a marvelous method of <br /> treatment. <br /> During our treatment, we will continue quarterly water sampling of the existing wells. <br /> We expect to start to see dramatic reduction in groundwater hydrocarbon concentrations <br /> within six months of initial startup. <br /> All field work will be completed in accordance with the field procedures previously <br /> presented and approved by San Joaquin County Public Health Services Department. And <br /> as discussed, we are planning to place the ten injection points starting February 19, 2002. <br /> We appreciate the opportunity to implement this change in our original remedial action <br /> plan and please do not hesitate to contact our office immediately if this workplan <br /> addendum is not suited to your needs. <br /> Wallace-Kuhl & Associates, Inc. <br /> Kurt Balasek <br /> Senior Hydrogeologist RG, CHG <br /> 14:%Dept3%ActiveJobAl628.11 Crystal CreameryStockto\workplan Addendum <br />