AICybersecurity threats facing drinking water and wastewater systems

Committee Organizing for 119th CongressSenate Environment and Public Works · 2026-03-04 · 119th Congress
The Senate Environment and Public Works Committee held this hearing to examine the cybersecurity challenges facing the roughly 170,000 drinking water and wastewater utilities across the country, and to identify ways the federal government, states, and universities could help utilities—especially small and rural systems—improve their defenses. Begins at 0:15:45
Transcript
Highlights

Title

Cybersecurity threats facing drinking water and wastewater systems

Purpose

The Senate Environment and Public Works Committee held this hearing to examine the cybersecurity challenges facing the roughly 170,000 drinking water and wastewater utilities across the country, and to identify ways the federal government, states, and universities could help utilities—especially small and rural systems—improve their defenses. Witnesses from Marshall University's Institute for Cybersecurity, the National Rural Water Association, and the Association of Metropolitan Water Agencies testified on workforce shortages, funding gaps, and possible models such as circuit-rider technical assistance and a NERC-style risk organization. Begins at0:15:45

Who spoke

Chair Shelley Moore Capito (R-WV)0:15:45: Opened by noting cyberattacks from Iran, China, and Russia targeting the nation's roughly 170,000 water and wastewater utilities0:17:09, cited a 2024 EPA finding that some systems shared single logins or never disabled ex-employees' access0:18:59, and warned against a "one-size-fits-all" mandate that would burden smaller systems0:19:32; later questioned witnesses on circuit riders0:45:12, workforce apprenticeships0:49:53, and closed by calling for better federal data on the number and location of attacks1:34:48.

Sen. Sheldon Whitehouse (D-RI), Ranking Member0:21:17: Said Chinese hackers have breached small municipal water systems in Texas, Pennsylvania, and Massachusetts since 2023, and Rhode Island facilities suffered at least six attacks in six years costing hundreds of thousands of dollars0:22:50; noted an EPA survey found less than 25% of wastewater utilities perform annual cyber risk assessments0:23:23; said the Trump administration has forced out cybersecurity experts and cut funding0:23:55; raised a past idea to mandate carve-out cyber insurance as a market-based spur for defenses0:54:20; and later stressed that nation-state and criminal cyberattacks are not clearly separable, since Russia subsidizes ransomware groups operating from places like Moldova and Lithuania1:30:54.

Dr. Simonton, Marshall University Institute for Cybersecurity0:26:28: Said over 75% of West Virginia's several hundred community water systems serve fewer than 3,300 people, often with one or two operators handling everything0:27:23; described common vulnerabilities including flat networks, default PLC credentials, and legacy equipment0:27:48; cited Marshall's work training 14 National Guard units later deployed on real-world missions0:29:11 and developing stackable cybersecurity credentials for working operators0:30:30; recommended a circuit-rider style program modeled on USDA technical assistance0:31:03.

Mr. Oderman (Odermann), National Rural Water Association / North Dakota Rural Water [0:32:36 as introduced by Sen. Cramer; first speaks 0:34:00]: Said North Dakota's rural water association has 282 members serving 92% of the state0:34:17; said cybersecurity is "a question of capacity" not indifference0:35:59 and offered five principles including leading with assistance not enforcement and funding any mandate0:37:45; said attempted attacks on rural water systems occur "probably daily"1:13:22 and that ransomware is more prevalent than nation-state attacks, which tend to lie in wait and exfiltrate data1:19:27.

Mr. Dewhirst, Fairfax Water / Association of Metropolitan Water Agencies0:39:31: Said about 14% of systems reported at least one cyber incident in the most recent quarter, up from 11.5% a year earlier0:40:50; proposed a NERC-modeled water risk organization working with EPA0:43:32; said WaterISAC has no comparable counterpart and funding plus staff time remain the primary barriers to utilities accessing cybersecurity services1:27:02.

Sen. Kevin Cramer (R-ND)0:32:28: Introduced Mr. Oderman and highlighted his rural water background0:32:56; later pressed witnesses on the value of "assistance not enforcement" versus insurance-driven market regulation0:56:18 and asked for best practices on interagency collaboration0:58:15.

Sen. Lisa Blunt Rochester (D-DE) [0:21:07 recognized; first speaks 1:01:48]: Cited reports that hackers who breach water systems can alter chemical levels or plant "software bombs"1:02:01; noted the EPA cybersecurity grant program has never been funded near its authorized $50 million and expires in FY20261:04:11; touted her bipartisan Water Infrastructure and Sustainability Act to reauthorize it1:04:37.

Sen. Pete Ricketts (R-NE)1:07:12: Said nearly 100 drinking water systems serving 26.6 million people had critical or high-risk vulnerabilities including open internet portals and default passwords1:08:04; asked about advantages of migrating to cloud-based systems1:09:02 and about documentation on attack sources1:10:56.

Sen. Jon Husted (R-OH)1:12:34: Asked how common cyberattacks on rural water systems are1:12:54 and pressed on the role of human error versus technical failures1:14:26; noted most attacks originate from North Korea, Iran, Russia, and China, not Ukraine or Israel1:17:44.

Sen. Adam Schiff (D-CA)1:18:09: Described his own bill to give EPA more tools for water cybersecurity without raising water bills1:18:29; asked how prevalent ransomware attacks are given reluctance to report them1:19:05 and whether attacks reflect opportunistic targeting versus deliberate selection1:21:54.

Sen. Ed Markey (D-MA)1:24:58: Highlighted his Water Intelligence Security and Cyber Threat Protection Act and Boston Water and Sewer's 2024 ransomware attack, which WaterISAC helped navigate1:25:33; recounted the 2010 Stuxnet-driven push to mandate electric-grid cybersecurity that passed the House but died in the Senate after utility lobbying1:28:48; argued "vision without funding is a hallucination"1:27:19.

Key moments

EPA identified water systems using a single shared login for all employees and failing to disable former employees' access, per a 2024 review cited by Chair Capito0:18:59.

Whitehouse cited at least six cyberattacks on Rhode Island municipal facilities over six years, and Chinese hackers breaching small municipal systems in Texas, Pennsylvania, and Massachusetts since 20230:22:50.

An EPA survey found fewer than 25% of wastewater utilities perform annual cyber risk assessments0:23:23.

Dr. Simonton said over 75% of West Virginia's community water systems serve fewer than 3,300 people, often run by just one or two operators handling treatment, distribution, and cybersecurity alike0:27:23.

Dewhirst reported roughly 14% of systems had at least one cyber incident last quarter, up from 11.5% the same period a year prior0:40:50.

Ricketts cited nearly 100 drinking water systems serving 26.6 million people found with critical or high-risk vulnerabilities such as open internet portals and default passwords1:08:04.

Blunt Rochester noted the EPA cybersecurity grant program, authorized at $50 million, has never been funded near that level and is set to expire in FY20261:04:11.

Markey recounted the Stuxnet-era push to mandate electric-utility cybersecurity, which passed the House unanimously but died repeatedly in the Senate after utility lobbying against the cost1:28:481:29:45.

Odermann said attempted attacks on rural water systems occur "probably daily," ranging from phishing to port scans1:13:22, and that a small handful of ransomware attacks have been reported to Dewhirst's clearinghouse in the past year1:21:28.

Husted noted that, per his research, most attacks originate from North Korea, Iran, Russia, and China—not Ukraine or Israel1:17:44; Whitehouse separately argued the line between nation-state attacks and Russia-subsidized criminal ransomware groups is not clear1:30:54.

Metadata

Official titleBusiness meeting to consider the nomination of the nomination of Douglas Weaver, of Maryland, to be a Member of the Nuclear Regulatory Commission; to be immediately followed by a hearing to examine a discussion draft of an original bill entitled, "the Toxic Substances Control Act Fee Reauthorization and Improvement Act of 2026."
CommitteeSenate Environment and Public Works
Chamber / CongressSenate · 119th Congress
Date2026-03-04
TypeMeeting
Witnesses
(none listed in event metadata)
Videosenate-isvp
Transcript216 caption blocks · 9,186 words · 1:35:55 runtime
EventCongress.gov 338028