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Bacteria agent

Description

Bacteria agent is a natural anionic focculent that is used with Filtrexx ® sediment control and pollution prevention practices, such as Sediment control, Check dams, Concrete washouts, Slope interruption, and Filtration system baffes. It is specifcally used to

reduce coliform bacteria loads in storm runoff , particularly around sensitive watersheds and receiving waters, near TMDL (303d) listed water bodies, near pet frequented areas, animal feeding operations, and urban watersheds where bacteria in runoff is an issue. Coliform bacteria that Bacteria agent targets in runoff includes but is not limited to bacteria in the genera

Escherichia , Klebsiella , Enterobacter , and Citrobacter , including E . coli and fecal coliforms. Bacteria agent should not be used without one of these Filtrexx

® management practices.

Function

Bacteria agent is a natural focculent that adsorbs cationic pollutants in runoff when applied with Sediment control, Check dams, Concrete washouts, Slope interruption, and Filtration system baffes. Bacteria agent naturally adsorbs positively charged ions to the surface of the Bacteria agent particle, thereby removing the pollutant from runoff transport and preventing it from reaching receiving waters. Coliform bacteria typically exhibit predominantly cationic characteristics. Bacteria agent can be applied in varying application rates to ft the coliform removal

objective of the application. Bacteria agent is not a coagulant and is 100% formulated with all natural materials. For more information on testing and research with Bacteria agent and Filtrexx ® products see Tech Links in the Appendix and performance criteria tables presented with each of the Filtrexx ® products listed with this specifcation.

Installation

1. Where required, Bacteria agent shall be surface applied manually, directly upslope, and along the entire length of the Filtrexx sediment control or fltration practice, or thoroughly mixed with FilterMedia™ prior to flling Soxx™.

2. Bacteria agent shall be applied at a rate of 20 lbs/ cubic yard (24 kg/cubic meter) of FilterMedia™ for optimum performance.

Inspection & Maintenance

1. Additional applications of Bacteria agent may be added after storm events to decrease coliform bacteria loading and contamination of water bodies resulting from future rainfall/runoff events.

2. If Sediment control, Check dams, Concrete washouts, Slope interruption, or Filtration system baffes exhibit signifcantly reduced hydraulic fow through rates or become clogged, they should be cleaned out or replaced.

Section 3: Support Practices ™

Filtrexx ® Bacteria Agent

Coliform Bacteria Reduction Technology