374Water's Mobile AirSCWO System Completes Phase 1 in St. Cloud, MN with Phase 2 Underway with Strong Early Results
Rhea-AI Summary
374Water (NASDAQ:SCWO) reported Phase 1 completion of its mobile AirSCWO deployment in St. Cloud, Minnesota under a $600,000 waste destruction services contract. Phase 2 is underway, with steady operations and no major challenges. The pilot runs through mid-September 2026 and may support broader PFAS-destruction adoption.
According to 374Water, early field data align with prior campaigns, and the mobile unit is estimated to generate $500,000–$1.5 million in annual revenue per system, helping build a scalable, recurring mobile services business.
AI-generated analysis. How Rhea-AI works. Not financial advice.
Positive
- $600,000 Waste Destruction Services contract with City of St. Cloud
- Phase 1 Class B biosolids campaign completed using mobile AirSCWO system
- Phase 2 Class A Lystek biosolids processing underway with steady operations
- Pilot runs through mid-September 2026, supporting Minnesota PFAS evaluation
- Mobile AirSCWO unit estimated $500,000–$1.5 million annual revenue potential per system
- St. Cloud deployment helping build foundation for scalable recurring mobile services business
Negative
- None.
News Market Reaction – SCWO
On the day this news was published, SCWO gained 1.06%, reflecting a mild positive market reaction. This price movement added approximately $330K to the company's valuation, bringing the market cap to $31.49M at that time.
Data tracked by StockTitan Argus on the day of publication.
Key Figures
Peers on Argus
SCWO was down about 2–3% while the limited momentum scan showed just one peer (TOMZ) moving lower and sector peers otherwise mixed, suggesting this move was more stock-specific than a broad sector rotation.
Historical Context
| Date | Event | Sentiment | 24h Move | Catalyst |
|---|---|---|---|---|
| Jun 09 | Orlando hub expansion | Positive | -0.4% | Expanded Orlando PFAS hub with added storage and $3M–$5M revenue potential. |
| Jun 02 | OC San milestone | Positive | +8.9% | Factory Acceptance Test success and progress toward remaining OC San milestones. |
| May 21 | Conference update | Positive | +0.4% | Conference visibility highlighting PFAS destruction and biosolids management demand. |
| May 14 | Q1 2026 earnings | Neutral | -1.1% | Flat revenue with higher gross margin but wider net loss and cash use improvement. |
| May 12 | St. Cloud deployment | Positive | -2.0% | First mobile AirSCWO deployment under a $600,000 St. Cloud PFAS contract. |
24h Move is the share-price change in the day after each event; other market factors may also have contributed.
Recent positive deployment and partnership updates have produced a mix of strong rallies and unexpected selloffs for SCWO.
Regulatory & Risk Context
Reported short interest is relatively low, indicating limited short-positioning and a lower likelihood of extreme short-squeeze-driven volatility based on current data.
An effective S-3/A shelf allows 374Water to issue up to $100,000,000 of securities over time, providing capital flexibility but also potential equity dilution as offerings are executed.
Key Terms
supercritical water oxidation technical
pfas technical
biosolids technical
class a biosolids technical
AI-generated analysis. How Rhea-AI works. Not financial advice.
The mobile AirSCWO brings the full capability of larger modular systems for wastes that cannot be transported and for onsite pilot demonstrations
MORRISVILLE, NC / ACCESS Newswire / June 30, 2026 / 374Water Inc. (NASDAQ:SCWO) ("374Water" or the "Company"), a leading cleantech and environmental services company deploying supercritical water oxidation technology for the permanent destruction of organic waste through its proprietary AirSCWO™, today announced the completion of Phase 1 of the St. Cloud, Minnesota campaign and provided an update on operations of its mobile AirSCWO system.
Project Update
The St. Cloud deployment is being conducted under a
The pilot program is scheduled to run through mid-September 2026, processing undigested and post-thermal hydrolysis digested waste streams as part of the State of Minnesota's LCCMR-supported evaluation of AirSCWO technology for the destruction of PFAS-laden wastes.

374Water's mobile AirSCWO system departed the Company's Orlando testing facility in May.
Phase 1 Complete: Class B Biosolids Processing
The mobile AirSCWO system has successfully completed Phase 1 of the St. Cloud deployment, a four-week processing campaign targeting Class B biosolids at solids concentrations of up to

The mobile system allows for minimal infrastructure in places where that is not viable.
Phase 2 Underway: Class A Lystek Biosolids
Building on the completion of Phase 1, the 374Water field team is now one week into Phase 2 of the deployment, which involves processing Class A Lystek biosolids. Operations have been steady, with no major operational challenges encountered to date. The Company is pleased with the pace of the program and the performance of the mobile system under field conditions.

The campaign has now seen multiple types of biosolids successfully processed with more to come as the project moves forward.
A successful pilot is expected to support Minnesota's broader assessment of AirSCWO for permanent PFAS destruction - an outcome the Company believes could generate multiple millions of dollars in revenue, including recurring annual revenue from ongoing operations and services. The mobile AirSCWO system is estimated to have the potential to generate between
Expanding the Mobile AirSCWO Commercial Pipeline
Beyond the LCCMR project, 374Water's solutions team is actively developing additional projects that will follow this deployment and are designed to demonstrate the full commercial capabilities of AirSCWO in a mobile configuration. The Company is encouraged by the interest it is seeing across multiple end markets and believes the St. Cloud deployment is building a foundation for a scalable, recurring mobile services business.
"We are proud of our field team and the steady, professional operations they have delivered since day one in St. Cloud," said Brad Meyers, Chief Operating Officer of 374Water. "Phase 1 is complete with strong early data, and Phase 2 is off to an equally solid start. What we're seeing in the field validates both the reliability of the technology and the commercial model. Importantly, this deployment is reinforcing what we're already hearing from the market - demand for mobile AirSCWO services is real and growing, both as a complement to our expanding fixed-site WDS business and as a demonstration platform that is opening doors with new customers."
374Water will continue to provide updates on the St. Cloud pilot program, Phase 2 performance results, and the development of follow-on mobile deployments as they become available.
About 374Water
374Water Inc. (NASDAQ:SCWO) is a cleantech environmental services company providing innovative solutions addressing wastewater treatment and waste management issues within the industrial, municipal, and federal markets. 374Water's AirSCWO technology is designed to efficiently destroy and mineralize a broad spectrum of nonhazardous and hazardous organic wastes, producing safe dischargeable water streams, safe mineral effluent, safe vent gas, and recoverable heat energy. 374Water's AirSCWO technology has the potential to assist its customers to meet discharge requirements, reduce or eliminate disposal costs, remove bottlenecks, and reduce litigation and other risks. 374Water continues to be a leader in innovative waste treatment solutions, dedicated to creating a greener future and eradicating harmful pollutants. Learn more by visiting www.374water.com and follow us on LinkedIn.
Forward-Looking Statements
Certain statements in this communication are "forward-looking statements" within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995, as amended. Words such as "anticipate," "believe," "confidence," "could," "design," "estimate," "expect," "intend," "may," "plan," "predict," "project," "potential," or other comparable terminology are intended to identify forward-looking statements, including, without limitation, 374Water's expectations regarding Phase 2 performance, the development of follow-on mobile deployments, the potential for multiple millions of dollars in revenue from Minnesota operations, and its estimate that a single mobile AirSCWO system has the potential to generate between
Investor Relations Contact
Belton Copp
Vice President
Direct: 401-419-1545
Belton.Copp@374water.com
www.374Water.com
SOURCE: 374Water Inc.
View the original press release on ACCESS Newswire