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y <br /> - Page 2 of 2 <br /> -"Would the ozone generator system be upgraded to accommodate the three new sparge'points?" <br /> According to the manufacturer, Aries Tek, the EnviroSparge 11, is a 10-point injection system, <br /> meaning it can accommodate up to 10 wells. Installing the proposed three additional ozone wells <br /> at the site would bring the total number of ozone wells at the site to 6. Therefore, AGE will not <br /> upgrade the system at Stefano's if the three additional ozone wells are installed. <br /> li <br /> a <br /> -"Provide hours arid percentage of time the ozone is operational in quarterly ground water <br /> monitoring reports." <br /> i, <br /> AGE will provide this data with a table of ozone operation parameters beginning with the fourth <br /> quarter 2007 monitoring:event. <br /> �ornrn, , <br /> If the three proposed ozone wells are approved, AGE proposes an injection time per well to a minimum of G kldh <br /> done hour. Utilizing six ozone wells at the site, at a minimum injection time of one hour per well, including a — <br /> 0-minute downtime period at the cessation of Hie well,injections, the EnviroSparge II would complete ' <br /> `i / <br /> approximately 3.75 cycles per day. This cycle rate would produce an approximate average downtime of 75 <br /> 3$e m <br /> minutes <br /> per day"Accounting for downtime, the proposed-injection cycle would inject approximately 0.95 <br /> pounds of ozone into the subsurface per day. e <br /> 0� ����` 1 <br /> If you have any additional questions or concerns, do not hesitate to contact me. Thank you for your time, <br /> and have an excellent weekend.- <br /> Ally <br /> eekend.Ally Colavita <br /> Staff Environmental Scientist <br /> Advanced GeoEnviornmental, Inc. <br /> 837 Shaw Road, Stockton, CA 95215 <br /> Phone: (209) 467-1006 <br /> Fax: (209) 467-1118 <br /> acolavita,a@advgeoenv.co n <br /> www.advgeoenv.com <br /> This email/fax message.is for the sole use of the intended recipient(s) and-may contain confidential and <br /> privileged information_ Any unauthorized review, use, disclosure or distribution of this email/fax is <br /> prohibited. if you are not the intended recipient, please.contact the sender by email/fax and destroy all <br /> J- paper and electronic copies of the original message. <br /> i <br /> 3/3/2008 <br />