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Line 3: − + + + + + + − <ref>Upstate Forever. 2005. “Bioretention - LID Fact Sheet.” Greenville, South Carolina. https://www.upstateforever.org/files/files/CAW_LIDFact_Bioretention.pdf.</ref> − <ref>Tahvonen, O. 2018. Adapting Bioretention Construction Details to Local Practices in Finland. Sustainability 10(276). doi: doi:10.3390/su10020276.</ref>
→Geotextiles/filter fabric
==Geotextiles/filter fabric==
==Geotextiles/filter fabric==
Laboratory research has demonstrated that the performance and clogging of maturing filter fabric can be predicted mathematically, based upon the media/filter material particle size distribution <ref>Palmeira, E. M. and Trejos Galvis, H. L. (2016). Opening sizes and filtration behaviour of non-woven geotextiles under confined and partial clogging conditions. Geosynthetics International. [http://dx.doi.org/10.1680/jgein.16.00021]</ref>. Elsewhere the mechanisms behind the clogging have been studied and characterised using CT-scanning technology <ref>Miszkowska, A., S. Lenart, and E. Koda. 2017. Changes of Permeability of Nonwoven Geotextiles due to Clogging and Cyclic Water Flow in Laboratory Conditions. Water 9(660). doi:10.3390/w9090660.</ref>.
*Laboratory research has demonstrated that the performance and clogging of maturing filter fabric can be predicted mathematically, based upon the media/filter material particle size distribution <ref>Palmeira, E. M. and Trejos Galvis, H. L. (2016). Opening sizes and filtration behaviour of non-woven geotextiles under confined and partial clogging conditions. Geosynthetics International. [http://dx.doi.org/10.1680/jgein.16.00021]</ref>.
*Elsewhere the mechanisms behind the clogging have been studied and characterised using CT-scanning technology <ref>Miszkowska, A., S. Lenart, and E. Koda. 2017. Changes of Permeability of Nonwoven Geotextiles due to Clogging and Cyclic Water Flow in Laboratory Conditions. Water 9(660). doi:10.3390/w9090660.</ref>.
Due to concerns about clogging, many types of facility may be constructed with limited or no filter fabric within:
*The use of filter fabric is referred to as a practice in 'older bioretention designs' In the upstate forever LID guide<ref>Upstate Forever. 2005. “Bioretention - LID Fact Sheet.” Greenville, South Carolina. https://www.upstateforever.org/files/files/CAW_LIDFact_Bioretention.pdf.</ref>. They go on to suggest that a [[choker course]] by used instead to seperate the [[filter media]] and [[reservoir aggrgate]]. Filter fabric may be used in side walls and should be placed directly over and within 2 feet of the [[perforated pipe]] drains when used in an [[underdrain]].
*In Finland the use of a choker course has been advocated for in place of filter fabric as replacing a clogged fabric layer would disturb established [[planting]]<ref>Tahvonen, O. 2018. Adapting Bioretention Construction Details to Local Practices in Finland. Sustainability 10(276). doi: doi:10.3390/su10020276.</ref>.
*
<ref>McLemore, A.J., J.R. Vogel, and S. Taghvaeian. 2017. “Bioretention Cell Design Guidance for Oklahoma.” http://pods.dasnr.okstate.edu/docushare/dsweb/Get/Document-10743/BAE-1536web.pdf..</ref>
<ref>McLemore, A.J., J.R. Vogel, and S. Taghvaeian. 2017. “Bioretention Cell Design Guidance for Oklahoma.” http://pods.dasnr.okstate.edu/docushare/dsweb/Get/Document-10743/BAE-1536web.pdf..</ref>
<ref>Water by Design. 2014. Bioretention Technical Design Guidelines (Version 1.1). http://hlw.org.au/u/lib/mob/20150715140823_de4e60ebc5526e263/wbd_2014_bioretentiontdg_mq_online.pdf.</ref>
<ref>Water by Design. 2014. Bioretention Technical Design Guidelines (Version 1.1). http://hlw.org.au/u/lib/mob/20150715140823_de4e60ebc5526e263/wbd_2014_bioretentiontdg_mq_online.pdf.</ref>