As can be seen the greatest cost for this practice (regardless of configuration type) will be Material & Installation, which includes costly components such as the [[Liner|impermeable membrane/liner]] appropriate [[planting]] and [[vegetation]] selection, [[underdrain]], [[filter media]] and the stone storage layer or [[Bioretention: Internal water storage|Internal water storage zone (IWSZ)]]. | As can be seen the greatest cost for this practice (regardless of configuration type) will be Material & Installation, which includes costly components such as the [[Liner|impermeable membrane/liner]] appropriate [[planting]] and [[vegetation]] selection, [[underdrain]], [[filter media]] and the stone storage layer or [[Bioretention: Internal water storage|Internal water storage zone (IWSZ)]]. |