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BMP SOLUTION

ABT Inc’s TrenchFormer FirstFlush® system is a cast-in-place stormwater channel that is designed specifically for sites under 100 acres where specific pollutants – oils, greases, and other hydrocarbons – must be captured without impeding bypass flow particularly during the first fifteen minutes of a rainfall or “first flush” effect.

Cast-in-place forming systems allow for greater flexibility for all your heavy-duty and high-volume applications including highways, airports, and anywhere you need quick and efficient drainage. FirstFlush® technology is perfect for sites that lack the necessary area for retention ponds and larger structures.

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POLLUTION PROBLEM SOLVER

STORMWATER FILTRATION

FILTRATION MEDIA

FirstFlush® is the perfect solution when seeking a best management practice (BMP) that must handle sheet flow, control vectors, collect debris, treat bacteria, and capture hydrocarbons – all on the same site.  The ABT FirstFlush® cast-in-place stormwater channels utilize a variety of filtration media and fabrics.

  • Standard Filtration “Blankets”

  • Antimicrobial Filtration Media

  • Hydrocarbon Media

  • HMR – Heavy Metals Removal Media

1640FF PRODUCT DATA – FIRSTFLUSH STORMWATER FILTRATION SYSTEMS

The FirstFlush 1640FF, our largest capacity design, uses ABT’s patented forming technology to create a highly durable concrete component.  As effluent enters either through an inlet pipe or a trench drain, the first chamber captures solid debris.  After passing through the sediment screen, effluent passes through two removable smart sponge filter panels before exiting.  The pre-sloped bottom eliminates ponding, an excellent feature where vector control is an issue.  The 1640FF is provided with solid covers.

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Description

Dims (in.)

Debri Volume (cu. ft)

Bypass Flow Area (in-sq) Debris Chamber

Bypass Flow Area (in-sq) Filter Chamber #1

Bypass Flow Area (in-sq) Filter Chamber #1

Detail Sheet:

1640FF24-4

4′ Long

24 x 48 x 48

9.4

46.8

165.8

-NA-

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Spec Sheet:

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Detail Sheet:

1640FF24-6

6′ Long

48″ Depth

24 x 48 x 72

15.5

46.8

146.6

-NA-

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Spec Sheet:

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Detail Sheet:

1640FF24-6H

6′ Long

30″ Depth

24 x 30 x 72

9.5

42.5

146.6

-NA-

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Spec Sheet:

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Detail Sheet:

1640FF24-8

8′ Long

48″ Depth

24 x 48 x96

19.2

44.6

129.6

163.6

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Spec Sheet:

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Detail Sheet:

1640FF24-8H

8′ Long

30″ Depth

24 x 30 x 96

11.85

42.5

142.4

153.0

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Spec Sheet:

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