From: Tod Kopyscinski Sent: Friday, July 19, 2019 11:57 AM To: Information, BWSC (DEP) Subject: Comment on MCP revisions I wanted to comment on the soil categories for PFAS. It appears that several of the categories are listed as Per- and Polyfluoroalkyl Substances (PFAS) and the limit is 0.0002ppm. Is this the sum of the six PFAS compounds listed and does that mean that they would need to be summed up and less than 0.0002ppm, which would mean each compound detected at 0.00003ppm? How would laboratories meet this low limit? Currently cannot be met. Is there a prep method that you have that could achieve these limits. Dirty soil samples will add more challenges. Purchasing the latest LC/MS/MS can be $500-1Mil, which still will struggle to meet. Analytical costs for these test will go up. Regards- Tod Tod E. Kopyscinski Laboratory Director Con-Test Analytical Laboratory Cell: (413) 427-0607 Tel: (413) 525-2332 x41 Fax: (413) 525-6405 Email: tkopy@contestlabs.com This e-mail is the confidential, unpublished property of Con-Test Analytical Laboratory. Do not duplicate or distribute. Use and distribution limited solely to authorized personnel. ©2015 Con-Test Analytical Laboratory