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==External links==
 
==External links==
Application in an [[exfiltration trench]]: [www.boldandgoldmedia.com/Docs/B_G_Exfiltration%20Trench.pdf]
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[[category:materials]]
 
[[category:materials]]
 
[[category:phosphorus]]
 
[[category:phosphorus]]
 
[[category:Water quality]]
 
[[category:Water quality]]

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