Water Treatment Systems That Keep Your Project Moving

Professional, reliable solutions for storm water management, groundwater treatment, and industrial wastewater treatment across California.
Responsible water removal. Fast response. Reliable results.

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24 Hour Emergency Response: 916-652-9745

Your Partner for Storm Water and Groundwater Compliance

General contractors trust ATS to keep projects moving with compliant storm water and groundwater treatment solutions. Our in-house equipment and rapid deployment help avoid delays and keep construction on schedule.

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Automated Treatment Systems

Consistent performance with lower risk.

Regulatory Compliance Focus

Built to meet permit requirements.

In-House Fleet & Equipment

Quick mobilization without delays.

Rapid Emergency Response

Fast action for urgent site issues.

Proven Project Experience

Trusted across complex job sites.

Technical Expertise

Reliable support for teams & engineers.

Our Core Water Treatment Services

Storm Water Treatment & Storm Water Management

Storm Water Treatment & Storm Water Management

Storm water issues are urgent and can shut a project down. Our storm water treatment systems and filtration solutions remove sediment and pollutants, help prevent violations, and maintain compliance with the Construction General Permit.

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Groundwater Treatment & Dewatering Services

Groundwater Treatment & Dewatering Services

Groundwater work is highly planned and requires precise engineering. We provide groundwater treatment systems, groundwater remediation, and dewatering services that safely remove, treat, and discharge groundwater so your project stays on schedule.

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Industrial Wastewater Treatment Systems

Industrial Wastewater Treatment Systems

Industrial sites require strict control of process water and discharge quality. ATS designs custom wastewater treatment systems for industrial flows to meet tough state and local standards.

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Sludge Dewatering Solutions

Sludge Dewatering Solutions

Efficient sludge dewatering improves system performance and lowers disposal costs. ATS provides automated dewatering units designed for construction and industrial applications.

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Engineering & Compliance Support

Engineering & Compliance Support

We support contractors, SWPPP providers, and engineering teams with permitting, design, system optimization, and compliance documentation across storm water, groundwater, and industrial wastewater projects.

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Real-Time Monitoring & Lab Services

Real-Time Monitoring & Lab Services

Our real-time monitoring systems track flow, water quality, and system performance so issues are identified early and corrective actions happen fast. Our in-house lab provides testing, analysis, and documentation to verify treatment results and meet regulatory requirements.

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“There are several things about Active Treatment Systems, Inc. that impressed us. The company is very service oriented and effectively communicated the planned procedure to accomplish the task at hand. You put together a timeline showing all of the activities leading up to achieving the project goals. ATS maintain good communication with Geomatrix and was able to rapidly adjust schedules and procedures to changing site conditions. Geomatrix and our clients were particularly please with the serious and thorough way in in which ATS treated the health and safety aspects of the project.”

Grant Ohland  |  Geomatrix  |  Denver, CO

“I would encourage you to find a way to get away from the office and see this site. It is an example of everything right, and I don’t offer that up lightly. It is the first time in over four years I have felt comfortable having an active site open for training. And you really need to see the Active Treatment Systems, Inc. installation, as well as the ICC storm water management implantation. They are text book. Well, they will be text book because they exceed the standards.”

Luncinda  |  Mud Hen Environmental, LLC  |  Sacramento, CA

“Greenbriar Homes Communities is appreciative for the way in which Clear Water worked with us. The project performance exceeded our expectations and Active Treatment Systems worked with us to finish the benefit of Greenbriar.”

Edward A. Gaudreau  |  Greenbriar Homes Communities  |  Fremont, CA

"You guys provide an excellent system that worked perfectly."

Bill Burton  |  Walsh Construction  |  Concord, CA