The LSPA received the following email from MassDEP Bureau of Waste Site Cleanup on August 1, 2025: 

Updated Compendium of Analytical Methods (CAM) protocols for Perchlorate, WSC – CAM – VIII B, Analysis of Perchlorate by Ion Chromatography (IC) with Electrospray Ionization/Mass Spectrometry (ESI/MS or ESI/MS/MS) or High Performance Liquid Chromatography (HPLC) with ESI-MS or ESI-MS/MS, have been posted to MassDEP’s web site at https://www.mass.gov/info-details/compendium-of-analytical-methods-cam#high-performance-liquid-chromatography-hplc-and-ion-chromatography-methods

The LSPA received the following email from MassDEP Bureau of Waste Site Cleanup on June 30, 2025: 

MassDEP has published a number of new Compendium of Analytical Methods (CAM) protocols and materials at https://www.mass.gov/info-details/compendium-of-analytical-methods-cam.