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y Geofogical7ecFinics Inc. • • Page 2 <br /> Disinfection W.P. <br /> City of Escalon()VDR) <br /> Project No. 894.2 <br /> December 7,2000 <br /> After the 2-week period, the wells will be purged to remove the residual chlorine. Field <br /> equipment will be used to monitor the residual chlorine in the purge water, once chlorine is <br /> no longer present, a sample will be collected and tested for Total Coliform(mpn). <br /> To prevent the introduction of bacteria into the wells during regular groundwater <br /> monitoring events, the following procedures will be used: <br /> • The pressure cap and the top of the well will be sprayed with a Chlorox solution prior to <br /> opening the well. <br /> • The depth to water measuring tape will be sprayed with a Chlorox solution prior to it <br /> being lowered into each well. <br /> • The pressure cap will be sprayed with a Chlorox solution prior to closing each well after <br /> sampling. <br /> • Clean surgical gloves will be worn at all times. <br /> The monitoring and disinfection event has been tentatively scheduled for December 15, <br /> 2000. <br /> If you have any questions or need additional information, please contact me. Thank you for <br /> this opportunity to serve your environmental needs. <br /> This work plan was prepared by: <br /> Geologica(Technics Inc. <br /> Michael J.Nie i <br /> Geologist <br /> Raynold 1. Kablanow 11, Ph.D. <br /> California Registered Geologist#5234 <br /> Certified Hydrogeologist#442 <br /> cc: Mike Huggins—SJC PHS/EHD <br /> Tim O'Brien—CRWQCB-CVR <br />