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</span>|<span style="letter-spacing:-.05pt"> </span></span><a href="http://www.dem.ri.gov"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif;color:#0066FF">www.dem.ri.gov</span></a><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif;color:#004579">|
@Rh<span style="letter-spacing:.05pt">o</span>de<span style="letter-spacing:-.05pt">I</span>s<span style="letter-spacing:.05pt">l</span>an<span style="letter-spacing:.1pt">d</span><span style="letter-spacing:-.05pt">D</span><span style="letter-spacing:.05pt">E</span>M</span><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif"><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:5.0pt"><b><span style="font-family:"Calibri Light",sans-serif;letter-spacing:.1pt">F</span></b><b><span style="font-family:"Calibri Light",sans-serif;letter-spacing:-.05pt">O</span></b><b><span style="font-family:"Calibri Light",sans-serif">R<span style="letter-spacing:-.05pt">
</span>IM<span style="letter-spacing:.1pt">M</span>E<span style="letter-spacing:.05pt">D</span><span style="letter-spacing:-.05pt">IAT</span>E<span style="letter-spacing:-.35pt">
</span>RELEA<span style="letter-spacing:-.05pt">S</span>E</span></b><span style="font-family:"Calibri Light",sans-serif">:
<b><span style="letter-spacing:.05pt">C</span><span style="letter-spacing:-.05pt">O</span>N<span style="letter-spacing:.1pt">T</span><span style="letter-spacing:-.05pt">A</span><span style="letter-spacing:.05pt">C</span><span style="letter-spacing:-.05pt">T</span></b>:
Jay G. Wegimont, 401-302-8316<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:5.0pt"><span style="font-family:"Calibri Light",sans-serif">Friday, December 24, 2021 <a href="mailto:Jay.Wegimont@dem.ri.gov">Jay.Wegimont@dem.ri.gov</a><span style="color:#0066FF"><o:p></o:p></span></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal" align="center" style="text-align:center"><b><span style="font-size:18.0pt;font-family:"Calibri Light",sans-serif">DEM ADDS THREE PROPRIETARY STORMWATER RUNOFF
<o:p></o:p></span></b></p>
<p class="MsoNormal" align="center" style="text-align:center"><b><span style="font-size:18.0pt;font-family:"Calibri Light",sans-serif">TREATMENT DEVICES TO PRETREATMENT APPROVED LIST
<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Calibri Light",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><!--[if gte vml 1]><v:shape id="Picture_x0020_5" o:spid="_x0000_s1027" type="#_x0000_t75" style='position:absolute;margin-left:181.1pt;margin-top:.9pt;width:141.75pt;height:235.1pt;z-index:251660288;visibility:visible;mso-wrap-style:square;mso-width-percent:0;mso-height-percent:0;mso-wrap-distance-left:9pt;mso-wrap-distance-top:0;mso-wrap-distance-right:9pt;mso-wrap-distance-bottom:0;mso-position-horizontal:right;mso-position-horizontal-relative:margin;mso-position-vertical:absolute;mso-position-vertical-relative:text;mso-width-percent:0;mso-height-percent:0;mso-width-relative:margin;mso-height-relative:margin'>
<v:imagedata src="cid:image004.png@01D7F8BA.90D62DC0" o:title="" croptop="3930f" cropleft="1501f" cropright="3169f" />
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</v:shape><![endif]--><![if !vml]><img width="189" height="313" style="width:1.9687in;height:3.2604in" src="cid:image009.jpg@01D7FBC0.3EAB5F30" align="right" hspace="12" v:shapes="Picture_x0020_5"><![endif]><span style="font-family:"Calibri Light",sans-serif">PROVIDENCE
– The Rhode Island Department of Environmental Management (DEM) is announcing that it has added three more proprietary stormwater treatment devices to its pretreatment approved list: the Jellyfish Filter, the Stormceptor, and the Cascade Separator. The Jellyfish
Filter has been granted recertification as a water quality best management practice (BMP) while the Stormceptor and Cascade Separator have been recertified for use as a pretreatment device in Rhode Island.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light",sans-serif">“Increased development across the Narragansett Bay watershed has made stormwater runoff the biggest source of pollution to our coastal waters,” said DEM Acting Director Terry Gray. “Cleaner
beaches and shellfish beds start with better stormwater control in our municipalities. I appreciate the efforts of DEM’s Office of Water Resources in evaluating and approving essential green infrastructure technology to help mitigate the scourge of stormwater.”<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light",sans-serif">Precipitation in an urban or suburban area that does not evaporate or soak into the ground but instead runs across the land and into the nearest waterway is
</span><a href="http://www.dem.ri.gov/programs/water/permits/ripdes/stormwater/"><span style="font-family:"Calibri Light",sans-serif;color:#0066FF">stormwater</span></a><span style="font-family:"Calibri Light",sans-serif;color:#0066FF">
</span><span style="font-family:"Calibri Light",sans-serif">runoff. This runoff holds
<span style="color:black;background:white">harmful pollutants like fertilizer, pet waste, chemical contaminants like
</span>pesticides, leaking fuel, motor oil,<span style="color:black;background:white"> litter, and sediment such as dirt and sand. This mix of nutrients and contaminants can
</span>fuel </span><a href="http://www.dem.ri.gov/programs/emergencyresponse/bart/habs.php"><span style="font-family:"Calibri Light",sans-serif;color:#0066FF">the growth of harmful algae blooms</span></a><span style="font-family:"Calibri Light",sans-serif;color:#0066FF">
</span><span style="font-family:"Calibri Light",sans-serif">that reduce oxygen levels and cloud the water, blocking sunlight from reaching underwater vegetation. It can cause beach closures, shellfish closures, and many other water quality related problems
if left un-treated.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light",sans-serif">The Jellyfish Filter uses high surface area filter fabric cartridges, which can be removed for cleaning, to treat<span style="color:#0066FF">
</span>stormwater<span class="MsoHyperlink"><span style="color:windowtext;text-decoration:none">.</span></span> It is a high flow-rate, compact device that is ideal for urban sites with limited amounts of space for stormwater BMPs. The approved models include
the Offline and Peak Diversion configurations, and the re-certification is effective for five years. The Stormceptor is a hydrodynamic separator that uses swirl technology to separate sediment and has a space to store captured hydrocarbons. Its recertification
is effective for five years. <a name="_Hlk88490211">The Cascade Separator</a> is certified as an approved pretreatment device that’s also effective for five years starting Oct. 12, 2021.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><!--[if gte vml 1]><v:shape id="Picture_x0020_2" o:spid="_x0000_s1028" type="#_x0000_t75" alt="The Cascade Separator - Stormwater Treatment by Contech" style='position:absolute;margin-left:231.3pt;margin-top:769.4pt;width:166.85pt;height:152.95pt;z-index:251662336;visibility:visible;mso-wrap-style:square;mso-width-percent:0;mso-height-percent:0;mso-wrap-distance-left:9pt;mso-wrap-distance-top:0;mso-wrap-distance-right:9pt;mso-wrap-distance-bottom:0;mso-position-horizontal:right;mso-position-horizontal-relative:margin;mso-position-vertical:absolute;mso-position-vertical-relative:text;mso-width-percent:0;mso-height-percent:0;mso-width-relative:margin;mso-height-relative:margin'>
<v:imagedata src="cid:image006.jpg@01D7F8BA.90D62DC0" o:title="The Cascade Separator - Stormwater Treatment by Contech" croptop="7764f" cropbottom="2262f" cropleft="8537f" cropright="10210f" />
<w:wrap type="square" anchorx="margin"/>
</v:shape><![endif]--><![if !vml]><img width="222" height="204" style="width:2.3125in;height:2.125in" src="cid:image010.jpg@01D7FBC0.3EAB5F30" align="right" hspace="12" alt="The Cascade Separator - Stormwater Treatment by Contech" v:shapes="Picture_x0020_2"><![endif]><span style="font-family:"Calibri Light",sans-serif">The
products are sold by Contech Engineered Solutions LLC, which showed via third-party testing that the Jellyfish Filter can remove at least 85% of total suspended solids, 30% of total nitrogen, 50% of total phosphorus, and 60% of pathogens from stormwater runoff.
Contech also has shown via third-party testing that the Stormceptor and Cascade Separator are able to remove at least 25% of total suspended solids from stormwater runoff. These products are intended for commercial and municipal use.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light",sans-serif">Proprietary devices that are approved as water quality BMPs in Rhode Island must be designed to treat the first inch of stormwater runoff produced by a site’s impervious surfaces (such
as roadways, roofs, and parking lots) during a rainfall event. Similarly, pre-treatment devices must pre-treat the first inch of stormwater runoff. Treating the first inch of runoff from impervious surfaces is essential because it provides treatment for approximately
90% of annual rainfall events which ensures that treatment devices capture the “first flush” of a storm, where most of the pollutants can be found. Approved proprietary devices also must be designed, built, and maintained to meet the conditions specified in
their technology-specific DEM certification letter.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light",sans-serif">The review of the proprietary stormwater treatment technology applications is conducted by members of the DEM Office of Water Resource’s stormwater engineering program along with members
of the RI Department of Transportation and Coastal Resources Management Council. DEM is proud to promote and contribute to the advancement of stormwater treatment technology in hopes of protecting Rhode Island’s precious water resources by minimizing the environmental
impact caused by land development. The list of DEM approved proprietary stormwater technologies and their associated certification letters are available
</span><a href="http://www.dem.ri.gov/programs/benviron/water/permits/swcoord/pdf/swtechlist.pdf"><span style="font-family:"Calibri Light",sans-serif;color:#0066FF">here.</span></a><span style="font-family:"Calibri Light",sans-serif"> For additional information
on the DEM stormwater technology review program, contact </span><a href="mailto:christopher.dill@dem.ri.gov"><span style="font-family:"Calibri Light",sans-serif;color:#0066FF">Christopher Dill, E.I.T</span></a><span style="font-family:"Calibri Light",sans-serif;color:#0066FF">.
</span><span style="font-family:"Calibri Light",sans-serif">by email or 401-222-4700 ext. 2777404.<o:p></o:p></span></p>
<p class="paragraph" style="margin:0in;margin-bottom:.0001pt;vertical-align:baseline">
<span style="font-family:"Calibri Light",sans-serif"><o:p> </o:p></span></p>
<p class="xmsonormal" style="background:white"><span style="font-size:12.0pt;font-family:"Calibri Light",sans-serif;color:black">For more information about DEM divisions and programs, visit
</span><span style="color:black"><a href="file:///C:/Users/Jay.Wegimont/AppData/Local/Microsoft/Windows/INetCache/Content.Outlook/BIULXSHA/www.dem.ri.gov"><span style="font-size:12.0pt;font-family:"Calibri Light",sans-serif;color:#0066FF">www.dem.ri.gov</span></a></span><span style="font-size:12.0pt;font-family:"Calibri Light",sans-serif;color:black">
or follow us on </span><span style="color:black"><a href="https://urldefense.com/v3/__https://www.facebook.com/RhodeIslandDEM__;!!KKphUJtCzQ!axDUiNCUH-ehqpGGhuPuhzCLenufKkq6yKJ_2G4OiFEjlbRWUp0AC_sP_lRwzaNnt5-vIZ68$"><span style="font-size:12.0pt;font-family:"Calibri Light",sans-serif;color:#0066FF">Facebook</span> [facebook.com]</a></span><span style="font-size:12.0pt;font-family:"Calibri Light",sans-serif;color:black">,
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<span style="font-size:12.0pt;font-family:"Calibri Light",sans-serif"><o:p></o:p></span></p>
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<p class="MsoNormal" align="center" style="text-align:center"><b><span style="font-family:"Calibri Light",sans-serif">###<o:p></o:p></span></b></p>
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<p class="MsoNormal"><b><span style="font-family:"Arial",sans-serif;color:#0078FF">Jay G. Wegimont | Programming Services Officer<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#212121">Rhode Island Department of Environmental Management</span><span style="color:#212121"><o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#212121">235 Promenade Street, Providence RI 02908</span><span style="color:#212121"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#212121">401-222-4700, X277-2402</span><span style="color:#212121"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#212121">Email: </span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><a href="mailto:jay.wegimont@dem.ri.gov">jay.wegimont@dem.ri.gov</a></span><span style="color:#212121"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#212121">Web: </span><a href="http://www.dem.ri.gov/"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#0066FF">www.dem.ri.gov</span></a><span style="color:#212121"><o:p></o:p></span></p>
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