| Line 53: | Line 53: | 
|  | ! 3 |  | ! 3 | 
|  | |- |  | |- | 
| − | |Catchment < 100 m²<ref>Ballard, B. W., Wilson, S., Udale-Clarke, H., Illman, S., Scott, T., Ashley, R., & Kellagher, R. (2015). The SuDS Manual. London.</ref> | + | |Catchment < 100 m² | 
| − | |Catchment > 100 m²
 | + | |Catchment > 100 m²<ref>Ballard, B. W., Wilson, S., Udale-Clarke, H., Illman, S., Scott, T., Ashley, R., & Kellagher, R. (2015). The SuDS Manual. London.</ref> | 
|  | |- |  | |- | 
| − | | | + | |Permeameter or Percolation test on site | 
|  | + | |Double ring infiltrometer test on site, or Grain size used <ref>San Francisco Public Utilities Commission. (2017). Determination of Design Infiltration Rates for the Sizing of Infiltration‐based Green Infrastructure Facilities. Retrieved from http://sfwater.org/modules/showdocument.aspx?documentid=9681</ref>   | 
|  | + | |} | 
|  | + | ---- |