The outlet of the <a href="https://en.wikipedia.org/wiki/Karlsruhe" class="extiw" title="en:Karlsruhe">Karlsruhe</a> sewage treatment plant flows into the <a href="https://en.wikipedia.org/wiki/Alb_(Northern_Black_Forest)" class="extiw" title="en:Alb (Northern Black Forest)">Alb</a>.
<a href="//commons.wikimedia.org/wiki/User:Ikar.us" title="User:Ikar.us">Ikar.us</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Ikar.us" title="User talk:Ikar.us"><span class="signature-talk">talk</span></a>)
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<a href="https://ka.stadtwiki.net/Alb" class="extiw" title="karlsruhe:Alb">Karlsruhe:Alb</a>