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<?xml-stylesheet type="text/xsl" href="https://communities.bentley.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>Use of Flow Variation Factors in Extended State Models</title><link>https://communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/21567/use-of-flow-variation-factors-in-extended-state-models</link><description>Where are flow variation (or peak) factors applied in an extended state or dynamic sanitary sewer system model? For instance where would the Ten States Peaking Factors be Applied?: Should average daily dry weather flow loading values be multiplied by</description><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>Re: Use of Flow Variation Factors in Extended State Models</title><link>https://communities.bentley.com/thread/47512?ContentTypeID=1</link><pubDate>Thu, 09 Apr 2009 23:09:17 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:61b5d647-0d2d-42da-b67d-b0a12c6b5d6b</guid><dc:creator>Jesse Dringoli</dc:creator><description>&lt;p&gt;
Hello Tim, 
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To the best of my knowledge, peaking factors / extreme flow factors (such as with the &amp;quot;ten states&amp;quot; method) are only meant for steady state simulations. 
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For an EPS (time varying) simulation, typically a diurnal pattern is used along with base loads at each manhole. The base load is often chosen to be the average daily load. 
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Someone else may be able to comment on the other items, but you can read much more about sanitary loading in chapter 6 of our &lt;a href="http://www.bentley.com/en-US/Training/books/wcsm.htm"&gt;Wastewater collection System Modeling and Design&lt;/a&gt;  book.
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Hope this helps.
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Regards,
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Jesse 
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