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[DOC File]Lead-based paint testing technologies: summary of an EPA ...
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A field duplicate paint sample was taken approximately 9 inches away from the primary paint sample at 10% of the test locations in the full study. Median and 95th percentiles of ratios of largest to smallest measurements were 1.6 and 3.7 in Denver; 1.3 and 2.1 in Philadelphia. ... U.S. Environmental Protection Agency: A Field Test of Lead-Based ...

[DOC File]Homepage - Texas Commission on Environmental Quality - …
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field-screening results and field-screening sample locations, sample locations submitted for laboratory analyses, depth markings, sample type (Shelby tube, split spoon, etc.), boring diameter, date drilled, name of the person who logged the well, and. drilling method. Include …

[DOC File]Quality Assurance Project Plan
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A 5% collection of a field duplicate are required for chemical parameters, which is a minimum of 1 duplicate per 20 samples or 1 sample per sampling event if less than 20 samples. ... See EPA QAPP Guidance for more information regarding equations that can be used to calculate accuracy. A minimum of five percent additional samples should be ...

[DOCX File]Disclaimer - US EPA
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h Measured as the coefficient of variation of the RPDs across, as applicable, all (i) duplicate/collocated field-collected cartridges; duplicate LCSs, and (iii) replicate laboratory analyses in the entire PAMS season. See Sections 2.5.1 and 2.5.2 of the NATTS 2011 …

[DOC File]EPA requires that all organizations conducting ...
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QC “calibration” check samples for field measurements, frequency and acceptance criteria limits (e.g., gel turbidity standard independent from turbidity standards used to field calibrate turbidity meter). Field duplicate/replicate (precision) samples, frequency and acceptance criteria limits, An Example field …

[DOC File]United States Environmental Protection Agency | US EPA
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Field Duplicates. Criteria/Action Required: The relative percent difference (RPD) between field duplicate sample results must be 30% for results >5 x DL. If the both results are >5 x DL and the criteria are exceeded, the positive detects for the two samples will be qualified as estimated (flagged “J”).

[DOCX File]1.0 INTRODUCTION - Montana DEQ > Home
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Field duplicates consist of two sets of sample containers filled with the same water from the same sampling site. Specify the number of duplicate samples you will take, either as a total number or a percentage; must be at least 10% of the total number of samples. All duplicate samples will be collected at the same location.

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U.S. Environmental Protection Agency. 26 W. Martin Luther King Drive. Cincinnati, Ohio 45231 ... and recording any external abnormalities per established Ohio EPA field and laboratory methods [19, 23]). Common carp (Cyprinus carpio ... Duplicate 10 µL aliquots of the diluted blood were mixed with 75 µL of 0.5% (w/v) low-melting agarose (LMA ...

Sample Analysis Plan:
The labeling will follow the pattern of KK2014ToxX(ZZ-YY) , where X stands for sampling location (1 to 3) and ZZ-YY stands for the beginning and end of a section of the core thickness in feet. Field duplicate shall have a suffix of "Dup" following the numerical sequence of sampling locations.

[DOCX File]New Jersey Institute of Technology
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List all field sampling SOPs, analytical method references (for preparation and analysis of the samples) and corresponding analytical laboratory SOPs that will be used for the Brownfields project. Include copies of the SOPs which can be provided on CD-ROM.

Field duplicate epa