Page 1 - Section4.1.1-SWPPPCutSheet-FiltrexxSedimentControl

Construction Activities | Section 1: Erosion & Sediment Control | 323

PURPOSE & DESCRIPTION

Filtrexx ® Sediment control is a three-dimensional tubular sediment control and storm water runoff fltration device typically used for perimeter control of sediment and other soluble pollutants (such as phosphorus and petroleum hydrocarbons), on and around construction activities.

APPLICATION

Filtrexx ® Sediment control is to be installed down slope of any disturbed area requiring erosion and sediment control and fltration of soluble pollutants from runoff. Sediment control is effective when installed perpendicular to sheet or low concentrated fow. Acceptable applications include: • Site perimeters

• Above and below disturbed areas subject to sheet runoff, interrill and rill erosion

• Above and below exposed and erodable slopes • Around area drains or inlets located in a ‘sump’ • On compacted soils where trenching of silt fence is diffcult or impossible

• Around sensitive trees where trenching of silt fence is not benefcial for tree survival or may unnecessarily disturb established vegetation. • On frozen ground where trenching of silt fence is impossible.

• On paved surfaces where trenching of silt fence is impossible.

INSTALLATION

1. Sediment control used for perimeter control of sediment and soluble pollutants in storm runoff shall meet Filtrexx ® Soxx tm Material Specifcations and use Certifed Filtrexx ® FilterMedia tm .

2. Contractor is required to be Filtrexx ® Certifed tm as determined by Filtrexx ® International, LLC

Section 1: Erosion & Sediment Control – Construction Activities

Filtrexx ® Sediment Control

SWPPP Cut Sheet:

Sediment & Perimeter Control Technology

(440-926-2607 or visit website at www.fltrexx. com). Certifcation shall be considered current if appropriate identifcation is shown during time of bid or at time of application (current listing can be found at www.fltrexx.com). Look for the Filtrexx ® Certifed tm Seal.

3. Sediment control will be placed at locations indicated on plans as directed by the Engineer.

4. Sediment control should be installed parallel to the base of the slope or other disturbed area. In extreme conditions (i.e., 2:1 slopes), a second Sediment control shall be constructed at the top of the slope.

5. Effective Soxx ™ height in the feld should be as follows: 8” Diameter Sediment control = 6.5” high, 12” Diameter Sediment control = 9.5” high, 18” Diameter SiltSoxx ™ = 14.5” high, 24” Diameter Sediment control = 19” high.

6. Stakes shall be installed through the middle of the Sediment control on 10 ft (3m) centers, using 2 in (50mm) by 2 in (50mm) by 3 ft (1m) hard wood stakes. In the event staking is not possible, i.e., when Sediment control is used on pavement, heavy concrete blocks shall be used behind the Sediment control to help stabilize during rainfall/runoff events.

7. Staking depth for sand and silt loam soils shall be 12 in (300mm), and 8 in (200mm) for clay soils.

8. Loose compost may be backflled along the upslope side of the Sediment control, flling the seam between the soil surface and the device, improving fltration and sediment retention.

9. If the Sediment control is to be left as a permanent flter or part of the natural landscape, it may be seeded at time of installation for establishment of permanent vegetation. The Engineer will specify seed requirements.