On July 12, 2021 the EPA published a draft list of current drinking water contaminants that may occur in public water systems and are not currently regulated. The Draft Contaminant Candidate list 5 (CCL 5) includes three chemical groups: per- and polyfluoroalkyls substances (PFAS), cyanotoxins, and disinfection byproducts (DBPs).

ESS is the experienced team when it comes to source emissions whether you need stack testing, monitoring systems maintenance and audits, or monitoring and control equipment commissioning. For more than 40 years ESS has provided annual opacity audits by 40 CFR 60 Appendix B Performance Specification 1 (40CFR60 PS-1).

Since 2002 the EPA has released the national air toxics data and risk assessment every 3-4 years. The goal of this change to policy announced on June 23rd, 2021 is to provide communities with more complete information about their air quality in a timely manner.

The EPA just announced that it will re-examine its previous decision to retain the particulate matter (PM) National Ambient Air Quality Standards (NAAQS).