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Hydro International offers innovative products for the cost effective control of stormwater and treatment of wastewater.
The Group has developed a range of technologies to control urban run off, treat stormwater, combined sewage overflows and municipal wastewater with the aim of providing cost-effective solutions for controlling quantity and improving quality of water.
Through the application of advanced vortex and complementary technologies Hydro International’s line of products provide an economical solution to control the quantity and improve the quality of water.
Hydro’s core business is:
Stormwater management - The control of stormwater flows and removal of trash, oil and sediment and associated pollutants from these flows, largely for application in the existing urban environment and for new residential and commercial developments.
Water and wastewater treatment - The full range of treatment products for screening, grit removal, primary, secondary and tertiary treatment for application in the municipal and regulated water industry.

In addition to individual applications, Hydro International offers Stormcell®, Stormbloc™, Hydro-Brake® Flow Control and Downstream Defender® as an award winning Integrated Stormwater Package. Together, our products provide comprehensive solutions to meet the most stringent regulations.
In 2003 the Integrated Stormwater Package received first prize at the IWEX Innovation Awards for its 'Contribution to Environment and Sustainability'.
Stormwater
Stormcell® Stormwater STORAGE System
A low cost, underground storage system suitable for installation beneath roads, car parks and amenity areas. Stormcell® is installed utilising a patented pipework system which prevents the entry of silts and grits into the storage volume.
Stormbloc™ Stormwater INFILTRATION System
A block type structure with a patented maintenance/inspection tunnel for providing underground surface water infiltration and soakaway systems.
Hydro-Brake® Flow Control
A self-activating vortex flow control that provides superior hydraulic performance over conventional flow regulators with patented features that reduce maintenance requirements.
Downstream Defender®
An advanced hydrodynamic vortex separator designed to remove sediment, floatables and associated pollutants from stormwater.
StormBank™ Rainwater Harvesting System
A cost-effective rainwater harvesting system suitable for toilets and external use. Easy to install, use and maintain
Wastewater
Combined Sewer Overflow
| Roger Lockwood | Chairman, Non-Executive Director |
| Stephen P Hides | Chief Executive Officer, Executive Director |
| Tony Hollox | Finance Director & Company Secretary, Executive Director |
| Chris Williams | Managing Director, Hydro International (EU), Executive Director |
| Prof. Robert Y G Andoh | Director of Innovation, Executive Director |
Company AddressClevedon Hall Estate, Victoria Road
|
CapitalAs at 10 August 2007, the total number of ordinary shares of 5p of Hydro International plc in issue was 14,139,760 with each share carrying the right to one vote. None of the shares are held in Treasury. |
Annual General MeetingMay | Year End31 December |
Nominated BrokersNominated Adviser & Stockbroker | Nominated AdvisorsNominated Adviser & Stockbroker |
| Shareholder Holding | (shares) Holding | (%) |
| T J Lamb (Mrs) | 2,606,782 | 18.44 |
| J Hart | 895,965 | 6.34 |
| Impax Environmental Markets plc | 835,000 | 5.91 |
| Edwards H C M/s Furb | 750,000 | 5.30 |
| G Thomas | 660,000 | 4.67 |
| Jupiter Ecology Fund | 450,000 | 3.18 |