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December 23, 1999 <br />Page C-10 <br />• - Preservation of samples <br />- Record of any QC samples from the location <br />- Record of any irregularities or problems which may have an impact on sample quality <br />C.5.2 Field Notes <br />Field notes should be kept in a bound field book or equivalent. The daily log should be <br />printed in waterproof ink, and should contain a detailed signed and dated description ofthe sampling <br />activities. The description should be detailed enough to enable participants to accurately and <br />objectively reconstruct the daily events at a later time. If corrections are necessary, these should be <br />made by drawing a single line through the original entry (so that the original entry is legible) and <br />writing the core, ected entry alongside. The correction should be initialed and dated and may require <br />a footnote explaining the correction. <br />The following information should be recorded: <br />- Names of all personnel on site <br />- Dates, weather conditions, and times <br />• - Location and well number <br />- Condition of the well <br />- Decontamination information <br />' - Calibration information <br /> Timeofoccurrenceandnatureofanymalfunctionsoffieldmeasurementinstruments <br />- Initial static water level and total well depth <br />- Calculations (e.g., calculation of purge volume) <br />- Field data (pH, conductivity, and temperature) <br />- A list of all samples collected which includes sample numbers, times, matrix, <br /> analysis to be performed, sampling location, and COC and sample seal numbers <br />- A list of all QA samples (blanks, duplicates, etc.) <br />- Any notes or elaboration required to clarify sample logs, boring logs, or other related <br /> records <br />- Any unusual circumstances <br />• The field log book will be supplemented by information on field forms for each <br />representative activity (i.e., borehole logs, COCs, etc.). <br />Agapito Associates, Inc. <br />