Deviation Corrective Reference Laboratory Response DOW Response Laboratory # Description Action/Necessary Change Response 1 The requested Method must be in 40 CFR Acceptable. N/A method for TSS, accordance with 136.3 Update TSS EPA 160.2, is not 40 CFR 136. SOP to currently approved KY DOW has inserted SM WWCM1 include year by the EPA to be 2540 D-1997 as the method Chapter of SM used for for TSS on the II committee wastewater laboratory’s Section approval for compliance. list. Please 10 the specific confirm which approved version of method the laboratory will the method in be using and update use (SM 2540 documents accordingly. D-1997). Note: SM 2540 D-2011 (SM Document will 22nd Ed.) is also approved be reviewed as a test method for TSS. at time of on-site audit.
# Deviation Description Corrective Action/Necessary Change Reference Laboratory Response DOW Response Laboratory Response 1 The requested method for TSS, EPA 160.2, is not currently approved by the EPA to be used for wastewater compliance. Method must be in accordance with 40 CFR 136. KY DOW has inserted SM 2540 D-1997 as the method for TSS on the laboratory’s list. Please confirm which approved method the laboratory will be using and update documents accordingly. Note: SM 2540 D-2011 (SM 22nd Ed.) is also approved as a test method for TSS. 40 CFR 136.3 WWCM1 Chapter II Section 10 Acceptable. Update TSS SOP to include year of SM committee approval for the specific version of the method in use (SM 2540 D-1997). Document will be reviewed at time of on-site audit. N/A