<HTML><BODY><div><div><a href="https://www.waterworld.com/home/article/16192273/introduction-to-wastewater-treatment-ponds#:~:text=The%20most%20often%20used%20ponds,and%20aerobic%20at%20the%20top.">https://www.waterworld.com/home/article/16192273/introduction-to-wastewater-treatment-ponds#:~:text=The%20most%20often%20used%20ponds,and%20aerobic%20at%20the%20top.</a></div><div> </div><blockquote style="border-left:1px solid #0857A6; margin:10px; padding:0 0 0 10px;">Thursday, December 17, 2020 1:15 PM -06:00 from Joseph Eisenberg <joseph.eisenberg@gmail.com>:<br> <div id=""><div class="js-helper js-readmsg-msg"><div><div id="style_16082325320915296275_BODY"><div class="cl_276689"><div><div><div><div><div><div><div><div><div>Re: "volume, elevation and sometimes particular usage"</div><div> </div><div>I don't think mappers can know the maximum volume or capacity of a water reservoir or water basin, unless it is written on a public sign somewhere? We can map the surface area, but knowing the average depth or maximum depth is quite difficult, especially when it is not uniform. However for man_made=reservoir_covered and =storage_tank we have capacity=* (in cubic meters?) and content=water/sewage/etc.</div><div> </div><div>It is possible to use ele=* for the elevation of the surface of the water if a mapper has a very good GPS or finds this info on a sign, but this information is also widely available from digital elevation models.</div><div> </div><div>The usage is not often tagged yet, since this might be hard for a mapper to know. </div><div> </div><div>Currently for landuse=reservoir and water=reservoir this is some use of reservoir_type= - <a href="https://wiki.openstreetmap.org/wiki/Key:reservoir_type" target="_blank">https://wiki.openstreetmap.org/wiki/Key:reservoir_type</a> - with values of water_storage, sewage, tailings, evaporator, tank, salt_pan, wastewater, slurry, irrigation, aquicultura, cooling, etc - though only the first 4 are at all common.</div><div> </div><div>basin=* is used with landuse=basin or water=basin to describe the form and function of the basin: </div><ul style="color:#202122; font-family:sans-serif; font-size:14px; margin-bottom:0px; margin-left:1.6em; margin-right:0px; margin-top:0.3em; padding:0px"><li style="margin-bottom:0.1em"><a title="Key:basin" style="text-decoration:none;color:rgb(11,0,128);background-image:none" href="https://wiki.openstreetmap.org/wiki/Key:basin" target="_blank">basin</a>=<a title="Tag:basin=infiltration" style="text-decoration:none;color:rgb(11,0,128);background-image:none" href="https://wiki.openstreetmap.org/wiki/Tag:basin%3Dinfiltration" target="_blank">infiltration</a> - An <span title="w:en: Infiltration_basin" class="gmail-plainlinks_mr_css_attr"><a style="text-decoration:none;color:rgb(102,51,102);background-image:none;padding:0px" href="https://en.wikipedia.org/wiki/en:Infiltration_basin" class="external_mr_css_attr gmail-text_mr_css_attr" target="_blank"><span style="padding:0px 1px"><img width="16" title="w:en: Infiltration_basin" style="border: 0px;vertical-align: middle;" src="https://wiki.openstreetmap.org/w/images/2/24/Wikipedia-16px.png" height="16" alt=""></span>infiltration basin</a></span> catches storm water and allows it to seep into an <span title="w:en: aquifer" class="gmail-plainlinks_mr_css_attr"><a style="text-decoration:none;color:rgb(102,51,102);background-image:none;padding:0px" href="https://en.wikipedia.org/wiki/en:aquifer" class="external_mr_css_attr gmail-text_mr_css_attr" target="_blank"><span style="padding:0px 1px"><img width="16" title="w:en: aquifer" style="border: 0px;vertical-align: middle;" src="https://wiki.openstreetmap.org/w/images/2/24/Wikipedia-16px.png" height="16" alt=""></span>aquifer</a></span>.</li><li style="margin-bottom:0.1em"><a title="Key:basin" style="text-decoration:none;color:rgb(11,0,128);background-image:none" href="https://wiki.openstreetmap.org/wiki/Key:basin" target="_blank">basin</a>=<a title="Tag:basin=detention" style="text-decoration:none;color:rgb(11,0,128);background-image:none" href="https://wiki.openstreetmap.org/wiki/Tag:basin%3Ddetention" target="_blank">detention</a> - A <span title="w:en: Detention_basin" class="gmail-plainlinks_mr_css_attr"><a style="text-decoration:none;color:rgb(102,51,102);background-image:none;padding:0px" href="https://en.wikipedia.org/wiki/en:Detention_basin" class="external_mr_css_attr gmail-text_mr_css_attr" target="_blank"><span style="padding:0px 1px"><img width="16" title="w:en: Detention_basin" style="border: 0px;vertical-align: middle;" src="https://wiki.openstreetmap.org/w/images/2/24/Wikipedia-16px.png" height="16" alt=""></span>detention basin</a></span> catches storm water and allows it to drain slowly into natural waterways.</li><li style="margin-bottom:0.1em"><a title="Key:basin" style="text-decoration:none;color:rgb(11,0,128);background-image:none" href="https://wiki.openstreetmap.org/wiki/Key:basin" target="_blank">basin</a>=<a title="Tag:basin=retention" style="text-decoration:none;color:rgb(11,0,128);background-image:none" href="https://wiki.openstreetmap.org/wiki/Tag:basin%3Dretention" target="_blank">retention</a> - A <span title="w:en: Retention_basin" class="gmail-plainlinks_mr_css_attr"><a style="text-decoration:none;color:rgb(102,51,102);background-image:none;padding:0px" href="https://en.wikipedia.org/wiki/en:Retention_basin" class="external_mr_css_attr gmail-text_mr_css_attr" target="_blank"><span style="padding:0px 1px"><img width="16" title="w:en: Retention_basin" style="border: 0px;vertical-align: middle;" src="https://wiki.openstreetmap.org/w/images/2/24/Wikipedia-16px.png" height="16" alt=""></span>retention basin</a></span> catches storm water and retains it, forming an artificial pond.</li></ul><div> </div><div>And note that salt ponds (used to evaporate salt from sea-water) are tagged as <a title="Key:landuse" style="text-decoration:none;color:rgb(11,0,128);background-image:none" href="https://wiki.openstreetmap.org/wiki/Key:landuse" target="_blank">landuse</a><span style="color:rgb(32,33,34);font-family:monospace,monospace;font-size:14px;background-color:rgb(238,238,255)">=</span><a title="Tag:landuse=salt pond" style="text-decoration:none;color:rgb(11,0,128);background-image:none;background-color:rgb(238,238,255);font-family:monospace,monospace;font-size:14px" href="https://wiki.openstreetmap.org/wiki/Tag:landuse%3Dsalt_pond" target="_blank">salt_pond</a></div><div>Pools for swimming are <a title="Key:leisure" style="text-decoration:none;color:rgb(11,0,128);background-image:none" href="https://wiki.openstreetmap.org/wiki/Key:leisure" target="_blank">leisure</a><span style="color:rgb(32,33,34);font-family:monospace,monospace;font-size:14px;background-color:rgb(238,238,255)">=</span><a title="Tag:leisure=swimming pool" style="text-decoration:none;color:rgb(11,0,128);background-image:none;background-color:rgb(238,238,255);font-family:monospace,monospace;font-size:14px" href="https://wiki.openstreetmap.org/wiki/Tag:leisure%3Dswimming_pool" target="_blank">swimming_pool</a></div><div> </div><div>I don't see many combinations with usage=* or another tag that might describe how the reservoir or basin is used, so perhaps this could be proposed?</div><div> </div><div>-- Joseph Eisenberg</div><div> </div></div></div></div></div></div></div></div></div> <div class="gmail_quote_mr_css_attr"><div class="mail-quote-collapse"><div class="gmail_attr_mr_css_attr">On Thu, Dec 17, 2020 at 10:36 AM François Lacombe <<a href="//e.mail.ru/compose/?mailto=mailto%3afl.infosreseaux@gmail.com">fl.infosreseaux@gmail.com</a>> wrote:</div><blockquote style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex" class="gmail_quote_mr_css_attr"><div><div>Hi all</div><div> </div><div>I'm ashamed to not have enough time to be involved in all discussions regarding reservoir, ponds, basins and so on... and thank you to make such a capital topic on the table</div><div>I'd be happy with a tagging that separates the structure, the water body and purpose of a given feature.</div><div> </div><div>Have a look to Storage chapter in this page (probably lacks many thing, it's just a start)</div><div><a href="https://wiki.openstreetmap.org/wiki/Water_management" target="_blank">https://wiki.openstreetmap.org/wiki/Water_management</a></div><div> </div><div>There are at least 5 ways to tag features involved in (potable) water storage</div><div>What if I'm only interested to find "water storage places" with their volume, elevation and sometimes particular usage?</div><div>Waste water retention basins are a supplementary situation like we could find dozens of them.</div><div>Where will this end?</div><div> </div><div>All discussed features share the "water body" concept (or more generic fluid-body with substance=water) inside very different structures with even different purposes.</div><div>Why don't we look to describe a generic water body, with a volume, elevation and usage prior to list every single feature that stores/retain water?</div><div> </div><div>This said, it's fine to have many different tags to describe very different structures (building=*, man_made=*, natural=*...)</div><div>As such structures tagging should be separated from the water body they contain, an uniformed semantic for water bodies would make OSM a yet cooler place than it already is</div><div> </div><div>All the best</div><div> </div><div>François</div><div> </div><div> </div><div class="gmail_quote_mr_css_attr"><div class="gmail_attr_mr_css_attr">Le jeu. 17 déc. 2020 à 18:46, Brian M. Sperlongano <<a href="//e.mail.ru/compose/?mailto=mailto%3azelonewolf@gmail.com">zelonewolf@gmail.com</a>> a écrit :</div><blockquote style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex" class="gmail_quote_mr_css_attr"><div><div>I knew them as sewage treatment ponds, but apparently there's a name for them:</div><div> </div><a href="https://en.m.wikipedia.org/wiki/Waste_stabilization_pond" target="_blank">https://en.m.wikipedia.org/wiki/Waste_stabilization_pond</a><div> </div><div>I feel like this a separate class of object that deserves its own tag, either within or separate from natural=water, or perhaps even subclassed as water=basin+basin=waste?</div></div> <div class="gmail_quote_mr_css_attr"><div class="gmail_attr_mr_css_attr">On Thu, Dec 17, 2020, 12:24 PM Joseph Eisenberg <<a href="//e.mail.ru/compose/?mailto=mailto%3ajoseph.eisenberg@gmail.com">joseph.eisenberg@gmail.com</a>> wrote:</div><blockquote style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex" class="gmail_quote_mr_css_attr"><div><div><div><div>How should sewage treatment facilities be tagged, then?</div><div> </div><div>Isn't sewage 99% water?</div><div> </div><div>I think that most sewage treatment facilities in the USA include open settling basins and I would use landuse=basin or water=basin + natural=water for these: <a href="https://www.openstreetmap.org/way/420075503" target="_blank">https://www.openstreetmap.org/way/420075503</a></div><div> </div><div>-- Joseph Eisenberg</div><div> </div><div class="gmail_quote_mr_css_attr"><div class="gmail_attr_mr_css_attr">On Thu, Dec 17, 2020 at 1:55 AM Mateusz Konieczny via Tagging <<a href="//e.mail.ru/compose/?mailto=mailto%3atagging@openstreetmap.org">tagging@openstreetmap.org</a>> wrote:</div><blockquote style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex" class="gmail_quote_mr_css_attr"><div><div> </div><div> </div><div> </div><div>Dec 17, 2020, 08:02 by <a href="//e.mail.ru/compose/?mailto=mailto%3adieterdreist@gmail.com">dieterdreist@gmail.com</a>:</div><blockquote style="border-left-width:1px;border-left-style:solid;border-left-color:rgb(147,163,184);padding-left:10px;margin-left:5px"><div> </div><div> </div><div>sent from a phone</div><div><div> </div><blockquote type="cite"><div>On 16. Dec 2020, at 17:52, Joseph Eisenberg <<a href="//e.mail.ru/compose/?mailto=mailto%3ajoseph.eisenberg@gmail.com">joseph.eisenberg@gmail.com</a>> wrote:</div></blockquote></div><blockquote type="cite"><div>You still have to distinguish marine water (outside of the natural=coastline) from inland waters, and distinguishing rivers from lakes is very important for proper rendering of many maps.</div></blockquote><div> </div><div> </div><div>and it seems landuse=reservoir is used for sewage as well:</div><div><a href="https://taginfo.openstreetmap.org/tags/reservoir_type=sewage" target="_blank">https://taginfo.openstreetmap.org/tags/reservoir_type=sewage</a></div><div> </div><div>is this appropriate for natural=water?</div></blockquote><div>No.</div><div> </div></div>_______________________________________________<br>Tagging mailing list<br><a href="//e.mail.ru/compose/?mailto=mailto%3aTagging@openstreetmap.org">Tagging@openstreetmap.org</a><br><a href="https://lists.openstreetmap.org/listinfo/tagging" target="_blank">https://lists.openstreetmap.org/listinfo/tagging</a></blockquote></div></div></div></div>_______________________________________________<br>Tagging mailing list<br><a href="//e.mail.ru/compose/?mailto=mailto%3aTagging@openstreetmap.org">Tagging@openstreetmap.org</a><br><a href="https://lists.openstreetmap.org/listinfo/tagging" target="_blank">https://lists.openstreetmap.org/listinfo/tagging</a></blockquote></div>_______________________________________________<br>Tagging mailing list<br><a href="//e.mail.ru/compose/?mailto=mailto%3aTagging@openstreetmap.org">Tagging@openstreetmap.org</a><br><a href="https://lists.openstreetmap.org/listinfo/tagging" target="_blank">https://lists.openstreetmap.org/listinfo/tagging</a></blockquote></div></div>_______________________________________________<br>Tagging mailing list<br><a href="//e.mail.ru/compose/?mailto=mailto%3aTagging@openstreetmap.org">Tagging@openstreetmap.org</a><br><a href="https://lists.openstreetmap.org/listinfo/tagging" target="_blank">https://lists.openstreetmap.org/listinfo/tagging</a></blockquote></div></div></div></div><div>_______________________________________________<br>Tagging mailing list<br><a href="/compose?To=Tagging@openstreetmap.org">Tagging@openstreetmap.org</a><br><a href="https://lists.openstreetmap.org/listinfo/tagging" target="_blank">https://lists.openstreetmap.org/listinfo/tagging</a></div></div></div></div></blockquote> <div> </div><div data-signature-widget="container"><div data-signature-widget="content"><div> </div></div></div><div> </div></div></BODY></HTML>