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<br />Rose':iile School District #623 <br />STS Project 94879-XF <br />September 27, 1989 <br />Page 4 <br /> <br />a depth of approximately 5.5 to 6.5 feet. The discolored soils may indicate an old <br />spill or leak from this tank system where the volatile organic compounds have degraded <br />or dissipated. <br /> <br />Statement of Qualifications <br /> <br />The magnetometer, the instrument used to locate the underground storage, is only an <br />approximate gross indicator for the location of buried metal objects. The exact <br />dimensions and specific location of the tank is unknown and can only be interpreted <br />from the data presented in this letter. Our interpretation is based upon the data <br />base that was collected. Changes in our interpretation may occur as additional in- <br />fonnation becomes available. In addition, variation in soil conditions exists between <br />borings. These variations may change the interpretation of the site conditions. <br /> <br />We appreciate the opportunity to be of service to you. If you have any questions or <br />comments in reference to this letter, please contact us at 559-1900. We appreciate <br />the opportunity to be of service to you. <br /> <br />Sincerely, <br /> <br />STS CONSULTANTS, LTD. <br /> <br />('L...~ ~ .~~ <br />J;J: C. Boerboom <br />Environmental Geologist <br /> <br />{2(~~jJ4:i- <br />Robert L. DeGroot, P.E. <br />Principal Engineer <br /> <br />JCB/dn <br />Encs. <br />