Analytical requirements for synthetic organic contaminants

Analytical requirements for synthetic organic contaminants. (1) Detection limits. Detection as used in this section shall be defined as greater than or equal to the following concentrations for each contaminant: (2) Analytical methods. Analysis for the synthetic organic contaminants listed in s. NR 809.20 shall be conducted using the methods prescribed in Table CM. (3) PCB analysis. Analysis for PCBs shall be conducted as follows: (a) Each water supplier that monitors for PCBs shall have each sample analyzed by a laboratory certified under ch. NR 149 using Method 505, 508, 508.1 or 525.2 as specified in Table CM and must achieve the required detection limits in this subsection. (b) If one or more of 7 PCB Aroclors are detected as designated in this paragraph in any sample analyzed using Methods 505 and 508, the sample shall be reanalyzed using Method 508A to quantitate PCBs as decachlorobiphenyl. (c) Compliance with the PCB MCL shall be determined based upon the quantitative results of analyses using Method 508A. (4) Sample collection. Samples shall be collected using containers and preservatives, and meeting the holding times specified in Table D. When an approved method that is not included in Table D is used to analyze samples, samples shall be collected using containers and preservatives, and meeting the holding times specified in the approved method. In all cases, samples should be analyzed as soon after collection as possible. (5) Laboratory certification. Analyses under this section shall only be conducted by laboratories that have received certification under ch. NR 149 or have been approved by EPA.