Missed us at STORMCON 2007 in Phoenix, Arizona? Don't worry, you can still learn about our exciting, new products for Urban Runoff Treatment. They include Curb and Parking Lot Inserts, Detention Pond Screens, Outfall Filtration Devices, and Downspout Screening Devices.

Download the Hydroscreen urban runoff treatment data sheet by clicking here.

Also, you can find us listed in the Blue Book of Building and Construction here.

Detention Pond Screens - Best Management Practice

Recent federal water quality discharge regulations require that runoff from parking lots and other impermeable surfaces be discharged into a detention pond for the control of sediments and floating organic pollutants. A number of urban drainage organizations have adopted specifications which require the utilization of wedge-wire screening devices and orifice plates on the outlets of the detention ponds.

The ponds most frequently contain organic growth such as trees, bushes, and grasses. This material is most effective at removing oil. Recent Hydroscreen improvements to the orifice plate include inverted weir outlet slots which prevent all floating contaminates from being discharged into the storm sewer. In addition, organic absorbing material is placed adjacent to the discharge plate containing the inverted weirs.

Experience has shown that the wedge-wire screens require little maintenance to clean. Debris that collects on the face of the screen dries and falls off. Experience has shown that the organic absorbing material requires infrequent replacement.

Earlier detention pond designs included a dead water space in the bottom of the pond, however, with the threat of West Nile Virus, the dead water is eliminated and the pond drained after each storm event.

(Please click on any of the images below to see a larger version.)

Wedge Wire Debris Screen		Debris Screen, Inverted Weir Outlet Plate, Organic Absorber
		Detention Pond After a Storm
		Small Detention Pond

• Hydroscreen was the developer of the flange-mounted water quality screen configuration
• All screens are designed in accordance with urban drainage specifications
• Screens utilize #93 v-wire with a slot opening of 0.139 inches
• Flanges are drilled for easy mounting with epoxy or wedge anchors
• All materials of construction are 304 stainless steel
• Rubberizer absorbs all organics

Curbstop and Parking Lot Inserts - Best Management Practice

Federal water quality discharge regulations also include the runoff from streets and smaller impervious surfaces where a detention pond is not practical. It is imperative that a functional curb and parking lot insert filtration device be able to function without cleaning after each storm. By utilizing tilted wire wedge wire screen this is possible.

The device will continue to remove debris, organics and water until the entire vault is filled with debris, only then does the unit need maintenance. Organic rubberizer absorbents are located directly below the screen to insure that the oils will not pass into the storm sewer. Different filter media can also be installed to remove selected contaminants.

• Hydroscreen was the developer of the nonclogging, low maintenance curb inlet filter. Download the data sheet by clicking here.
• High capacity flow, debris removal and organic absorption by rubberizer or specified filter material.
• Screens and debris fence designed to meet local specifications for particulate removal.
• High volume debris storage./li>
• Easy cleaning and rubberizer replacement.
• Easy installation with wedge anchors.
• All materials of construction are of 304 stainless steel.
• Standard and custom sizes available to fit all vault configurations.
• Emergency bypass.
• Ballasted debris fence design ensures water-debris seperation, vault drainage and irregular bottom conformance.
• Patent Pending.

Downspout Screening Devices - Best Management Practice

Recent Water Quality legislation in several countries requires that, "Runoff from all impervious areas of new construction must be filtered." (This includes the roof!) Water directed in downspouts from roofs of buildings may contain particulate matter and organics and other substances that are subject to the storm water regulations. The "SuperFlo" can be configured to meet these environmental requirements, as well as specialized mounting configurations, inlet and outlet pipes from 4" to 12" diameters, specialized absorbents, debris capacities , lengths, and more.

SuperFlo II Downspout Screening Device

Unlike conventional "bag-in-a-box" filtering devices, our SuperFlo II storm water downspout filters were designed specifically to handle high velocity, high volume flow rates without clogging. These conditions are frequently associated with roofs of warehouses, condominiums, office buildings, and parking structures.

Download the SuperFlo data sheet by clicking here.

The SuperFlo II is a high capacity, self-cleaning, non-clogging, self-contained, downspout filter that assures complete debris removal with minimal service requirements. The different models of the SuperFlo II are sized to accommodate different flows and can be fitted with specialized organic and non-organic absorbents to meet stringent discharge requirements.

SuperFlo II Flow Rate Capacity
Downspout Dia.	Rated Capacity (GPM)	Rated Capacity (CFS)
4"	175	0.39
6"	400	0.88
8"	700	1.56
10"	1,000	2.22
NOTE: 12" SuperFlo II Available Upon Request

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