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<p class="MsoNormal"><u><span style="font-size:12.0pt;color:black">Norweco Singulair 960 (Waste Strength Reduction) and Norweco Singulair DN (Waste Strength and Nitrogen Reduction) Certification Renewals</span></u><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Both the Norweco Singulair 960 and Norweco Singulair DN A/E Technology certifications were renewed on May 24, 2022. In addition to revised certifications, a Design manual, Installation manual,
and O&M manual are now available online for both technologies.<o:p></o:p></span></p>
<p class="MsoNormal"><u><span style="font-size:12.0pt;color:black"><o:p><span style="text-decoration:none"> </span></o:p></span></u></p>
<p class="MsoNormal"><u><span style="font-size:12.0pt;color:black"><o:p><span style="text-decoration:none"> </span></o:p></span></u></p>
<p class="MsoNormal"><u><span style="font-size:12.0pt;color:black">GST Leaching Systems Certification Revision</span></u><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">The GST Leaching Systems Certification has been revised to reference an updated Design Manual and Installation and Operation Manual to clarify a point of confusion. The intent of the original technology
approval for GST was to allow for a 2 ft separation to the SHWT and 4ft to ledge statewide if the system was preceded by an advanced pretreatment system with waste strength reduction coupled with pressure distribution. The approved RI manuals in their previous
form only indicated that advanced pretreatment was required to allow for the 2ft and 4ft separation distances but this was an error of omission. The revised certification provides for the approval of updated manuals that indicate that both conditions must
be satisfied if the 2ft and 4ft separation distances are to be allowed (i.e. advanced pretreatment and pressure distribution).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Please refer to the current RIDEM OWTS A/E Technology List with a revision date of
<b>April 5, 2022</b> for details of the changes summarized above. The current list can be found at this link:
<a href="http://www.dem.ri.gov/programs/benviron/water/permits/isds/pdfs/ialist.pdf">
http://www.dem.ri.gov/programs/benviron/water/permits/isds/pdfs/ialist.pdf</a></span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><i><span style="font-size:12.0pt">*Reminder – Don’t forget to hit the refresh button on your web browser if the latest list is not showing up.<span style="color:black"><o:p></o:p></span></span></i></b></p>
<p class="MsoNormal"><b><i><o:p> </o:p></i></b></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><img border="0" width="117" height="57" style="width:1.2187in;height:.5937in" id="Picture_x0020_1" src="cid:image001.jpg@01D87A42.E6A7B390"><span style="font-size:12.0pt;font-family:"Franklin Gothic Book",sans-serif;color:#767171"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Franklin Gothic Book",sans-serif;color:#767171">Rhode Island Department of Environmental Management<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Franklin Gothic Book",sans-serif;color:#767171">Office of Water Resources – Onsite Wastewater Treatment Systems (OWTS) Program<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Franklin Gothic Book",sans-serif;color:#767171">235 Promenade Street, Providence RI 02908<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Franklin Gothic Book",sans-serif;color:#767171">Website Address:
</span><span style="font-size:12.0pt;font-family:"Franklin Gothic Book",sans-serif;color:#233A9D"><a href="http://www.dem.ri.gov/septic"><span style="color:blue">www.dem.ri.gov/septic</span></a>;
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Franklin Gothic Book",sans-serif;color:#767171">OWTS Phone Line: 401.222.3961;
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Franklin Gothic Book",sans-serif;color:#767171">OWTS General Information Email Address:
<a href="mailto:DEM.OWTS@dem.ri.gov"><span style="color:blue">DEM.OWTS@dem.ri.gov</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Georgia",serif;color:#C00000"><o:p> </o:p></span></b></p>
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