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Analytical Laboratory Methods," February 1, 2004. These procedures or methods shall be approved by the DEP contract manager before use under this Contract and must be cited or described in the required planning document (see Section 6). h. The CONTRACTOR shall ensure that Practical Quantitation Limits (PQLs) and Method Detection Limits (MDLs) required by the Contract are listed in the planning document (see Section 6). i. The CONTRACTOR shall ensure that the selected laboratory test methods listed in the planning document can provide results that meet the Contract data quality objectives. j. The CONTRACTOR shall ensure that all laboratory testing procedures follow the analytical methods as approved in the planning document (see Section 6) k. The CONTRACTOR shall ensure that the all laboratory quality control measures are consistent with Chapter 5 of the NELAC standards. I. In addition, the CONTRACTOR shall ensure that the quality control requirements specified in the attached addenda are followed m. The CONTRACTOR shall ensure that all sample results are calculated according to the procedures specified in the analytical methods approved in the planning document. 3. FIELD ACTIVITIES a "Sample' refers to samples that have been either collected or analyzed under the terms of this Contract. b. The CONTRACTOR shall ensure that all sample collection and field testing activities are performed in accordance with the Department's "Standard Operating Procedures for Field Activities" (DEP-SOP-001/01, February 1, 2004). The specific standard operating procedures (SOPs) to be used for this Contract shall be cited in the planning document (see Section 6). c. Any non-standard field procedure shall be submitted for review and approval to the DEP contract manager in accordance with section FA 2000 of DEP-SOP-001/01. All non- standard procedures and methods must be approved by the DEP contract manager before use under this Contract and must be cited or described in the planning document. d. Per the quality control measures outlined in the DEP SOPs (FQ 1000 and the calibration requirements of the FT -series for field testing), the CONTRACTOR shall ensure that the following field quality controls (and any additional quality control measures specified in the addenda) are incorporated into the project design: (i) Matrix -Related Quality Controls - The CONTRACTOR shall ensure that the laboratory is provided with sufficient sample volume to analyze at least one set of matrix spikes and either matrix spike duplicates or laboratory duplicates as follows: (1) The first time a sample from a sample collection matrix (see Table FA 1000-1) is collected; (2) One in each additional 20 samples of the sample collection matrix, after the first 20 samples; and (3) The last time samples are collected for the sample collection matrix. (ii) Field -generated Quality Control duplicates or replicates (not to be confused with laboratory duplicates) shall be collected and analyzed at a frequency of 5% of the total number of samples collected for each matrix/analyte combination (see FQ 1220). (1) All field duplicate results greater than the contracted PQL should agree within 20% RPD for each measured analyte. In the event that the field duplicate agreement is not observed, the CONTRACTOR shall investigate and attempt to determine the cause of poor precision. The outcome of these investigations shall be reported, including the corrective measures taken to minimize future problems. DEP Agreement No. LP###, Attachment 11, Page 2 of 12