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 WINNERS: StormCon Selfie Contest!

We asked StormCon 2017 attendees to tell us their vision for the future of stormwater while taking a selfie in Hydro-Vision glasses and we got some great responses. The winners pictures, pizes and answers are below. Congratulations to the winners!

Posted on 
08 September 2017
Stormwater
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City of Indianapolis approves stormwater BMP
News City of Indianapolis Approves First Defense® High Capacity

The City of Indianapolis has approved the First Defense® High Capacity stormwater separator with the highest stormwater treatment loading rate in the industry. 

Posted on 
24 August 2017
Stormwater
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
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