Acid Sulfate Management Plan · MCU16/0103

                                                                          SURROGATES                                                                    BE018333 R0



   Surrogate results are evaluated against upper and lower limit criteria established in the SGS QA /QC plan (Ref: MP-(AU)-[ENV]QU-022). At least two of three routine level soil
   sample surrogate spike recoveries for BTEX /VOC are to be within 70-130% where control charts have not been developed and within the established control limits for charted
   surrogates. Matrix effects may void this as an acceptance criterion. Water sample surrogate spike recoveries are to be within 40-130%. The presence of emulsions,
   surfactants and particulates may void this as an acceptance criterion.

   Result is shown in Green when within suggested criteria or Red with an appended reason identifer when outside suggested criteria. Refer to the footnotes section at the end
   of this report for failure reasons.




                                                                    No surrogates were required for this job.




21/10/2016                                                                                                                                                                Page 3 of 9