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1 <br /> STATEMENTS <br /> Purge Water Disposal <br /> Non-hazardous groundwater produced during purging and sampling of monitoring was accumulated at <br /> TRC's groundwater monitoring facility at Concord, California, for transportation by Onyx Transportation, <br /> Inc, to the ConocoPhillips Refinery at Rodeo, California Disposal at the Rodeo facility was authorized by <br /> ConocoPhillips m accordance with "ESD Standard Operating Procedures — Water Quality and <br /> Compliance", as revised on February 7, 2003 Documentation of compliance with ConocoPhillips <br /> requirements is provided by an ESD Form R-1.49, which is on file at TRC's Concord Office Purge water <br /> containing a significant amount of liquid-phase hydrocarbons was accumulated separately in drums for <br /> transportation and disposal by Filter Recycling, Inc <br /> Limitations <br /> The fluid level monitoring and groundwater sampling activities summarized in this report have been <br /> performed under the responsible charge of a California Registered Geologist or Registered Civil <br /> Engineer and have been conducted in accordance with current practice and the standard of care exercised <br /> by geologists and engineers performing similar tasks in this area No warranty, express or implied, is <br /> made regarding the conclusions and professional opinions presented in this report The conclusions are <br /> based solely upon an analysis of the observed conditions If actual conditions differ from those described <br /> in this report, our office should be notified <br /> • <br />