
Automating CSO Compliance with ACE™
The City of Haverhill, MA, has received MassDEP approval for Aquasight’s ACE™ CSO Notification solution — a major step toward smarter, faster compliance with public reporting mandates. Building on success in Springfield, this automated platform streamlines overflow event detection, reporting, and community alerts, helping utilities save time, improve transparency, and protect public health.
Meeting the Moment: MassDEP Approval Unlocks New Potential for Municipal Compliance
In a major milestone for the City of Haverhill, Aquasight’s ACE™ Combined Sewer Overflow (CSO) Notification solution has officially received approval from the Massachusetts Department of Environmental Protection (MassDEP). This green light marks more than just regulatory success — it represents a turning point in how cities can approach real-time compliance reporting.
After extensive collaboration, rigorous testing, and deep alignment with NPDES permit standards, the City of Haverhill is now equipped with an automated solution that simplifies the complexities of CSO event management. With the ACE™ platform, Haverhill can now meet state mandates quickly and accurately — while reclaiming time and focus for other critical operational needs.
This is what the future of wastewater compliance looks like: intelligent, efficient, and transparent.
The Growing Burden of CSO Reporting
Across the U.S., municipal wastewater utilities are under pressure. Aging infrastructure, workforce shortages, and increasingly strict regulatory mandates are converging into a perfect storm. One that threatens operational resilience and community trust.
Massachusetts has taken a proactive stance, requiring public notification within two hours of a CSO or SSO event. While the intention is to increase public safety and accountability, the operational burden on utilities is steep. Manual reporting processes are not only time-intensive — they introduce delays, inconsistency, and the potential for compliance gaps.
This was the exact challenge facing Haverhill, Springfield, and other cities across the state. To remain in compliance without overextending their already lean teams, these cities needed a smarter way to manage and automate regulatory workflows.
A Proven Solution, Expanded: From Springfield to Haverhill
Aquasight’s ACE™ CSO Notification solution was first implemented in Springfield, Massachusetts — a city with 19 overflow structures and significant public exposure risk along its rivers. In partnership with ADS Environmental Services, Aquasight deployed an end-to-end public reporting system that connected flow monitoring data with automated event detection, GIS-based public notifications, and community email alerts.
Key outcomes from the Springfield deployment included:
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Real-time transparency through interactive GIS maps
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Automated alerts at the start, continuation, and end of CSO events
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Compliance confidence through alignment with state mandates
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Efficiency gains that saved city staff hours of manual work per event
Now, Haverhill is building on that success. With its MassDEP-approved implementation, the city joins a growing cohort of utilities embracing digital transformation to stay ahead of compliance demands.
Inside the Technology: What Makes ACE™ Different
Aquasight’s ACE™ platform is not a bolt-on notification tool — it’s a fully integrated, intelligent system that transforms how utilities manage sewer overflows.
Here’s what sets ACE™ apart:
✅ Real-Time Integration with Flow Data
Aquasight’s system integrates seamlessly with monitoring tools like ADS PRISM™, creating a unified data stream from meter to public alert.
✅ Automated Compliance Triggers
Events such as discharge start, continuation beyond 8 hours, and discharge stop are automatically identified and processed for reporting.
✅ GIS-Centric Visualization
A dynamic map-based interface displays CSO locations and status in real-time, empowering both staff and the public to stay informed.
✅ Email Notifications and Public Access
Citizens can subscribe to alerts and receive updates via email the moment an event is detected — a powerful tool for transparency and public health.
✅ Scalable and Configurable
Whether a city has 5 overflow points or 50, ACE™ scales quickly and adapts to local infrastructure and reporting protocols.
The Bigger Picture: Why This Matters
For utilities, CSO compliance isn’t just about meeting state mandates. It’s about building public trust, protecting local water bodies, and maximizing the effectiveness of limited staff resources.
In both Springfield and Haverhill, ACE™ has proven to be more than a tool — it's a strategic advantage. By automating time-sensitive, error-prone processes, the platform helps utilities redirect attention toward proactive infrastructure management and operational excellence.
And for the public, it delivers what’s most important: timely, accurate information that enables safe recreation and environmental stewardship.
What’s Next: Expanding the Digital Compliance Movement
With Haverhill’s approval now in hand, Aquasight is poised to expand this solution to other Massachusetts communities — and to any U.S. city navigating similar regulatory headwinds.
“Our partnership with utilities is about more than software,” said Jonathan Hasson, Aquasight’s VP of Smart Water Solutions. “It’s about building capacity, reducing risk, and delivering value to both operators and residents. For CSOs, we’ve digitized and automated the entire compliance workflow — from meters to regulatory reporting to public communication.”
Whether you're a utility director facing new mandates, an engineer supporting overflow infrastructure, or a compliance officer tracking every minute of an event, one thing is clear: there’s a better way forward.
Ready to Modernize Your CSO Reporting?
Aquasight’s ACE™ CSO Notification platform is built for utilities ready to streamline operations, improve compliance, and boost public confidence.
Learn how Aquasight can support your CSO compliance needs: Contact Us to schedule a personalized demo.