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NPDES Monitoring Requirement 10 September 2001 <br /> Attachment D-3 — Reporting Requirements <br /> 1. Laboratory Requirements. The laboratory analyzing the monitoring samples shall be certified by <br /> the Department of Health Services in accordance with the provisions of Water Code Section 13176 <br /> and must include quality assurance/quality control data with their reports. <br /> 2. Criterion Ouantitation Limit (COL). The criterion quantitation limits will be equal to or lower. <br /> than the minimum levels (MLs) in Appendix 4 of the Policy for Implementation of Toxics <br /> Standards for Inland Surface Waters, Enclosed Bays, and Estuaries of California (Copies of the <br /> SIP may be obtained from the State Water Resources Control Board, or downloaded from <br /> 1=://www.swrcb.ca.gov/isMT/final.pdD or the detection limits for purposes of reporting (DLRs) <br /> published by the Department of Health Services <br /> (hhtt ://www dhs ca eov/ros/ddwem/chemicals/DLR/dirindex.htm) which is below the controlling <br /> water quality criterion concentrations summarized in attachment II of this letter. <br /> 3. Method Detection Limit(MDL). The method detection limit for the laboratory shall be <br /> determined by the procedure found in 40 Code of Federal Regulations (CFR) Part 136, Appendix B <br /> (revised as of May 14, 1999). <br /> 4. Reportinz Limit (RL). The reporting limit for the laboratory. This is the lowest quantifiable <br /> concentration that the laboratory can determine. Ideally, the RL should be equal to or lower than <br /> the CQL to meet the purposes of this monitoring. <br /> 5. Reporting Protocols. The results of analytical determinations for the presence of chemical <br /> constituents in a sample shall use the following reporting protocols: <br /> a. Sample results greater than or equal to the reported 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 report RL,but greater than or equal to the laboratory's MDL, shall <br /> be reported as "Detected,but Not Quantified,"or DNQ. The estimated chemical concentration <br /> of the sample shall also be reported. <br /> c. For the purposes of data collection, the laboratory shall write the estimated chemical <br /> concentration next to DNQ as well as the words "Estimated Concentration" (may be shortened <br /> to "Est. Conc."). The laboratory, if such information is available,may include numerical <br /> estimates of the data quantity for the reported result. Numerical estimates of data quality may <br /> be percent accuracy(t a percentage of the reported value), numerical ranges (low to high), or <br /> any other means considered appropriate by the laboratory. <br /> d. Sample results that are less than the laboratory's MDL shall be reported as "Not Detected" or <br /> ND. <br /> 6. Data Format. The monitoring report shall contain the following information for each pollutant: <br /> a. The name of the constituent. <br /> b. Sampling location. <br /> c. The date the sample was collected. <br /> d. The time the sample was collected. <br /> I of 3 <br />