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' • 'i'ROhfac� - - ;; <br /> Sierra-Pacific Groundwater Consultants, Inc. <br /> `. <br /> ED C;o HYDROGEOLOGISTS&GEOLOGISTS <br /> September 17, 1996 <br /> Mr. W.T. Nickerson, Project Manager <br /> Unocal ERS <br /> 2000 Crow Canyon Place, Suite 400 <br /> San Ramon, California 94583 <br /> Subject. Sierra-Pacific Groundwater Consultants, Inc., Errata For Second-Quarter 1996 Quarterly <br /> Monitoring Report (QMR), Former PureGro Facility at 1905 North Broadway Avenue, <br /> Stockton, PureGro Site No. 771165, Unocal Order/Contract: 34402-1, Sierra-Pacific <br /> Project No. 94-055 <br /> Dear Mr. Nickerson: <br /> The nitrogen-as-nitrate (N-NO3) test result for sample #6120 from MW-7 was incorrectly reported <br /> as 16 mg/l in Table 4 of the last QMR. The correct number is 3.6 mg/l N-NO3, which is discussed <br /> in the text of the QMR, documented in the lab data appendix, and now shown on the attached <br /> QMR errata sheet. <br /> Sorry for the inconvenience. Please call if you have any questions or further directives. <br /> Sincerely, <br /> SIERRA-PACIFIC GROUNDWATER CONSULTANTS, INC. <br /> Jo Stephenapp, CEG-1133 <br /> Senior Engineering Geologist <br /> JSR/jb <br /> Enclosure <br /> C. Wendy Wyels, RWQCB <br /> Michael Infurna, San Joaquin County <br /> Jan Wagoner, Unocal <br /> (916)973-1468 <br /> .1911 Windplay Drive.Suite 4 EI Dorado Hills.Califomia 95762 (916)933-3197 FAX <br />