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→How is it being used?
===How is it being used?===
===How is it being used?===
Bold & Gold Filtration Media is currently being used in experimental projects in North Carolina to evaluate nutrient reduction capabilities. No projects that used Bold & Gold were found in Ontario, however, it has been used for projects such as an upflow filter chamber following a detention pond, a commercial green roof in Florida, and a subsurface upflow wetland filter for nutrient removal. <ref>Stormwater Treatment Environments, LLC. Success Stories. http://greensmarts.com/success_stories.html. Accessed September 8, 2017.</ref> Filtration Media Specifications and Typical Cross Sections are provided on the Bold & Gold website.
Bold & Gold Filtration Media is currently being used in experimental projects in North Carolina to evaluate nutrient reduction capabilities. No projects that used Bold & Gold were found in Ontario, however, it has been used for projects such as an upflow filter chamber following a detention pond, a commercial green roof in Florida, and a subsurface upflow wetland filter for nutrient removal. <ref>Stormwater Treatment Environments, LLC. Success Stories. http://greensmarts.com/success_stories.html. Accessed September 8, 2017.</ref> Filtration Media Specifications and Typical Cross Sections are provided on the Bold & Gold website.
Bold & Gold was estimated to remove 46-58% of total phosphorus in an urban on-line up-flow filter and an off-line filter in Florida. Designs should minimize backwater since P contributions were recorded when backwater conditions existed (FDOT, 2014)<ref>FDOT. 2014. Demonstration Bio Media for Ultra-urban
Stormwater Treatment. https://www.fergusonwaterworks.com/wp-content/uploads/2022/11/Demonstration-Bio-Media-For-Ultra-Urban-Stormwater-Treatment-1.pdf. Accessed August 2025.</ref>.
===Benefits===
===Benefits===
The results of a study by Hood, Chopra, and Wanielista provided promising results for the use of Bold & Gold for phosphorus removal. In field scale testing, Bold & Gold had a 71% removal efficiency of total phosphorus. This was compared to sandy soil which had many negative values, indicating significant leaching of total phosphorus from the sod. The average Soluble Reactive Phosphorus (phosphorus that is readily available to plants and algae) removal efficiency was 95%. Overall, the Bold & Gold system performed much better when compared to a sandy soil bio-filtration system. <ref>Hood A, Chopra M, Wanielista M. Assessment of Biosorption Activated Media under Roadside Swales for the Removal of Phosphorus from Stormwater. Water. 2013;5:53-66. doi: 10.3390/w5010053.</ref>
The results of a study by Hood, Chopra, and Wanielista provided promising results for the use of Bold & Gold for phosphorus removal. In field scale testing, Bold & Gold had a 71% removal efficiency of total phosphorus. This was compared to sandy soil which had many negative values, indicating significant leaching of total phosphorus from the sod. The average Soluble Reactive Phosphorus (phosphorus that is readily available to plants and algae) removal efficiency was 95%. Overall, the Bold & Gold system performed much better when compared to a sandy soil bio-filtration system. <ref>Hood A, Chopra M, Wanielista M. Assessment of Biosorption Activated Media under Roadside Swales for the Removal of Phosphorus from Stormwater. Water. 2013;5:53-66. doi: 10.3390/w5010053.</ref>