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TRC Customer Focused Solutions <br /> �• 5052 Commercial Circle <br /> Concord, CA 94520-1248 <br /> Statement of Authorized <br /> Transportation and Disposal <br /> This is to certify that non-hazardous groundwater produced during purging and <br /> sampling of monitoring wells at ConocoPhillips site number 012p-5-was accumulated <br /> at TRC's groundwater monitoring facility at Concord, California, for transportation by <br /> Onyx Transportation, Inc to the ConocoPhillips Refinery at Rodeo California for <br /> disposal TRC records indicate that approximately _ gallons of purge water <br /> from the site ere transferred to the purge water holding tank on <br /> 3 _ The contents of the holding tank were tr nsp ed to the <br /> Unit l(0 ater Treatment Facility at the Rodeo Refinery on l t13 0 __-3 <br /> Disposal at the facility was authorized by ConocoPhillips in accordance with "ESD <br /> Standard Operating Procedures - Water Quality and Compliance", as revised on <br /> February 7, 2003 The procedure requires that TRC dispose only of monitoring well <br /> purge water from sites for which TRC services are under contract by ConocoPhillips <br /> The non-hazardous nature of the purge water is confirmed quarterly by analysis by an <br /> independent certified laboratory of a random sample from the TRC holding facility <br /> The sample is analyzed for all analytes and parameters that might affect the <br /> ConocoPhillips NPDES permit for ultimate disposal of the water Documentation of <br /> compliance with ConocoPhillips requirements is provided by an ESD Form R-149, <br /> which is on file with ConocoPhillips <br /> If any purge water collected at the site is suspected of containing potentially hazardous <br /> material such as liquid-phase hydrocarbons, that water was accumulated separately in a <br /> drum for transpportation and disposal by Filter Recycling, Inc <br /> fitness of this statement <br /> 11-7 <br /> �eaiwus Jensen /date <br /> rogram Manager <br />