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SPX CORPORATION ORDER R5-2019-0018 <br /> SPX MARLEY COOLING TECHNOLOGIES GROUNDWATER CLEANUP NPDES NO. CA0081787 <br /> Sampling Monitoring Period Begins On... Monitoring Period SMR Due Date <br /> Frequent <br /> 1 January through 31 March 1 May <br /> 1 April through 30 June 1 August <br /> 1/Quarter Permit effective date 1 July through 30 September 1 November <br /> 1 October through 1 February of <br /> 31 December following year <br /> 1/Year Permit effective date 1 January through 1 February of <br /> 31 December following year <br /> 4. Reporting Protocols. The Discharger shall report with each sample result the applicable <br /> Reporting Level (RL) and the current laboratory's Method Detection Limit (MDL), as <br /> determined by the procedure in 40 C.F.R. part 136. <br /> The Discharger shall report the results of analytical determinations for the presence of <br /> chemical constituents in a sample using the following reporting protocols: <br /> a. Sample results greater than or equal to the RL shall be reported as measured by the <br /> laboratory (i.e., the measured chemical concentration in the sample). <br /> b. Sample results less than the RL, but greater than or equal to the laboratory's MDL, <br /> shall be reported as "Detected, but Not Quantified," or DNQ. The estimated <br /> chemical concentration of the sample shall also be reported. <br /> For the purposes of data collection, the laboratory shall write the estimated chemical <br /> concentration next to DNQ. The laboratory may, if such information is available, <br /> include numerical estimates of the data quality for the reported result. Numerical <br /> estimates of data quality may be percent accuracy (± a percentage of the reported <br /> value), numerical ranges (low to high), or any other means considered appropriate <br /> by the laboratory. <br /> c. Sample results less than the laboratory's MDL shall be reported as "Not Detected," <br /> or ND. <br /> d. Dischargers are to instruct laboratories to establish calibration standards so that the <br /> Minimum Level (ML) value (or its equivalent if there is differential treatment of <br /> samples relative to calibration standards) is the lowest calibration standard. At no <br /> time is the Discharger to use analytical data derived from extrapolation beyond the <br /> lowest point of the calibration curve. <br /> 5. Multiple Sample Data. When determining compliance with an AMEL or MDEL for <br /> priority pollutants and more than one sample result is available, the Discharger shall <br /> compute the arithmetic mean unless the data set contains one or more reported <br /> determinations of"Detected, but Not Quantified" (DNQ) or"Not Detected" (ND). In those <br /> cases, the Discharger shall compute the median in place of the arithmetic mean in <br /> accordance with the following procedure: <br /> a. The data set shall be ranked from low to high, ranking the reported ND <br /> determinations lowest, DNQ determinations next, followed by quantified values (if <br /> any). The order of the individual ND or DNQ determinations is unimportant. <br /> b. The median value of the data set shall be determined. If the data set has an odd <br /> number of data points, then the median is the middle value. If the data set has an <br /> even number of data points, then the median is the average of the two values <br /> around the middle unless one or both of the points are ND or DNQ, in which case <br /> ATTACHMENT E— MONITORING AND REPORTING PROGRAM E-15 <br />