We help people improve the way they process, treat and manage water.

With over 30 years of experience and a reputation for engineering excellence, businesses and public organizations all over the world rely on our stormwater, wastewater, flood control and CSO products and services to increase operational performance and reduce environmental impact.

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News New joint venture with Thunip to deliver better water management to China

We have entered into a joint venture with Thunip Corporation Ltd., creating a Chinese company that will deliver our products locally within China.

Posted on 
14 August 2017
Mergers & Acquisitions
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News Downstream Defender Selected for NY Wheel Project

Downstream Defender® will provide stormwater treatment for Staten Island's New York Wheel.

Posted on 
10 August 2017
Stormwater
News 2017 Trash Study is Available!

The results are in from our analysis of the trash we collected during our second annual volunteer day cleanup at the Long Creek Watershed.

Posted on 
31 July 2017
Stormwater
News Smart monitoring to track flood levels in Shropshire

Hydro International smart monitoring technology will provide insight into water levels at the Much Wenlock flood alleviation project.

Posted on 
27 July 2017
Smart Monitoring
VDOT approved stormwater products
News Virginia DOT Approves use of Hydro Separators and Filter

The Virginia Department of Transportation (VDOT) recently completed a comprehensive review of submittals for development of an Approved Products List (APL) for stormwater Manufactured Treatment Devices (MTDs) including the

Posted on 
12 July 2017
Stormwater
Trash study Hydro International
News Second Annual Trash Cleanup to be used in Study

Our Portland, Maine team spent a day cleaning up the Long Creek Watershed, and will study the trash collected to improve the way we treat stormwater.

Posted on 
15 May 2017
Stormwater
Stormwater Treatment Laboratory
News Accelerating Discovery! Expansion of our Hydraulics Laboratory

We just can’t leave good enough alone.

Posted on 
08 May 2017
Stormwater
Stormwater treatment in theme parks
News Downstream Defender® Installations at Disneyland®

Two 4-ft Downstream Defenders were installed in the parking lot of Disneyland theme park in Anaheim, California this month.

Posted on 
17 April 2017
Stormwater