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(z) <br />I wou]d suggest correcting this problem by having your samples <br />analyzed for dissolved metals. This can be accomplished by filtering <br />your samples before pouring them in the acidified sample bottles. <br />Alternately a raw sample can be filtered in the lab then acidified. <br />The field filtering technique is preferable to lab filtering. <br />Further quarterly samples will give more correct metal concentrations <br />for your three sample sites. You should see considerably lower <br />concentrations for aluminum, copper, iron, and lead. <br />If you have any questions or need further information, please call. <br />Sincerely, <br />BOOKCLIFFS COMMERCIAL LABORATORIES <br />,P~ K ~.u/s,,,t <br />Ralph V. Poulsen <br />Director <br />RVP/lm <br />• Enclosure <br /> <br /> <br /> <br />~~Q~ <br />~ eer~Y. ..^..~u <br /> <br />