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1 <br />1 <br /> <br /> <br /> <br />1 <br /> <br />l~ <br /> <br />1 <br /> <br />1 <br />l1 <br /> <br /> <br /> <br /> <br />1 <br />(4) The difference acceptable for the analysis of duplicates <br />for each analytical parameter and for each analytical <br />method. <br />5.4 Analytical Accuracy and Verification <br />Analytical accuracy, precision, reproducibility and sensitivity <br />will be consistent with the data reported in USEPA EPA-600/4-79-020 <br />or, where these data are unavailable for individual analytical <br />protocols, consistent with data reported in APHA/AWWA "Standard <br />Methods for the Examination of Water and Wastewater", 17th Edition, <br />1989 ("Standard Methods"). In the absence of data froth either of <br />these sources, the analytical laboratory will seek to estimate any <br />or all of these parameters, where appropriate. <br />Detection limits will be consistent with data available in EPA- <br />600/4-79-020 or "Standard Methods". A listing of applicable <br />detection limits for aqueous solutions not subject to analytical <br />interference or matrix effects is given in Appendix D. <br />The data for any monitoring parameter will be subjected to <br />verification procedures where this is considered necessary by the <br />analytical laboratory or the Project Manager, as described in the <br />analytical laboratory's SOP, but only if the analytical result <br />exceeds the analytical method Practical Quantitation Limit or Level <br />(PQL). The applicable PQLs will be ascertained, where necessary, <br />using procedures consistent with USEPA protocol$ for the <br />development of PQLs given in EPA 600/4-79-020 or the alternative <br />methods for the assessment of PQLs described in N.J.A.C „ 7:9 - 6.1 <br />et seq., pages 36 through 38, given in Appendix E. <br />Provisional values for PQLs to be used as a guide, based on <br />N.J.A.C. 7:9-6.1 et seq., are given in Appendix F. <br />-33- <br /> <br />