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==Evaluation==
==Evaluation==
[[File:Phosphorus cycle bioretention images large a10-006f1.jpeg|550px|thumb|See above an example of the phosphorous cycle in a bioretention system. The cycle can be altered depending on the specific design configuration of the LID, including the adoption of a saturated zone, type and amouNT of mulch used and [[Bioretention media|sorbitive media]] included or not<ref>Roy-Poirier, A., Champagne, P., and Filion, Y. 2010. Bioretention processes for phosphorus pollution control. Environmental Reviews, 18(NA), pp.159-173.</ref>.]]
===Construction inspections===
===Construction inspections===
If laboratory testing indicates the extractable phosphorus concentration is not within the design or product specification range, notify the supplier, issue a “do not install” order to the construction site supervisor and contact the design professionals and property owner or project manager to determine corrective actions.
If laboratory testing indicates the extractable phosphorus concentration is not within the design or product specification range, notify the supplier, issue a “do not install” order to the construction site supervisor and contact the design professionals and property owner or project manager to determine corrective actions.