- NEWS RELEASE
- March 6, 2007
Storm
Water District Designs Bioretention Facility
The Butler
County Storm Water District is currently designing a bioretention
facility to be installed on the Butler County Engineer's Office
property located at 1921 Fairgrove Avenue in Hamilton, Ohio.
The design of the bioretention area will allow for the collection
and treatment of storm water runoff from existing paved areas.
A sampling station will be set up to collect runoff as it enters
the BMP and a second sampling station will be installed to collect
effluent from the bioretention underdrain system. Data will be
collected during each rain event over the next few years to track
the performance of the unit. In addition to providing pollutant
removal, the bioretention facility will add aesthetic appeal
to a currently bare area. The bioretention facility is the first
of several best management practices which will be installed
and monitored at this site. Installation of the bioretention
facility is expected to occur in April 2007.
According
to the Rainwater and Land Development Manual created by the Ohio
Department of Natural Resources, "bioretention practices
are stormwater basins that utilize a soil media, mulch, and vegetation
to treat runoff and improve water quality for small drainage
areas. Bioretention practices provide effective treatment for
many runoff quality problems including reduction of total suspended
solids, heavy metals, organic compounds, bacteria, and nutrients
(phosphorous and nitrogen) by promoting settling, adsorption,
microbial breakdown, and nutrient assimilation by plants."
"A bioretention
area consists of a depression that allows shallow ponding of
runoff and gradual percolation through a soil media, after which
it either infiltrates through undisturbed soils or enters the
storm sewer system through an underdrain system. Bioretention
practices are sized for common storm events (the water quality
volume) whereas runoff volumes from larger events are typically
designed to bypass these practices."
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