Aug 19, 2026 NSA, CISA, FBI, DOE, and EPA have issued an urgent joint advisory warning of an active cyberattack campaign targeting Siemens S7 Series PLCs across U.S. critical infrastructure — with water and wastewater systems explicitly identified as among the most heavily targeted sectors. …

This week, multiple public water systems, including small utilities across several states, have experienced cyber-attacks targeting internet-connected programmable logic controllers (PLCs). The Cybersecurity and Infrastructure Security Agency (CISA) is currently observing a significant increase in the targeting of PLCs located in the water and wastewater …

The U.S. Environmental Protection Agency (EPA) is hosting a virtual technical assistance workshop for water utilities on the updated Planning for an Emergency Drinking Water Supply (EDWS) Guidance. The workshop will focus on utility and state case studies and lessons learned on providing an EDWS …

March 31, 2026, 2:00 p.m. – 3:00 p.m. ET Recent extreme space weather events, such as the May 2024 global geomagnetic storm and December 2023 Solar Radio Burst that disrupted airline communications in the Continental U.S., showed the potential to affect critical infrastructure, including the …

On March 10, 2026, the Maryland Department of the Environment (MDE) adopted regulations that require community and non-transient non-community public water systems to:  notify customers of water outage events, flooded wells, and flooded springs under certain conditions; perform corrective actions for these events depending upon …