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Vortedis' S�.ormwaLer Trwtment System <br /> LABORATpRY AND FIELD TEST[NG <br /> Introductfon <br /> Vortechnics is an esfablished leader in [he stormwater treatment industry, marketing the Vortechsb <br /> Stormwater Treatment System as a technology capatile of removing a high percentage of floating <br /> and settling pullutants from s[ormwater Flows. ExtensP�e testing In both the laboratory and In the <br /> field has produced a comprehens�ve set of data descr�bing th� relationshlp between Flow rate, <br /> partic e size, and removal effidency. <br /> Sections 1 and 2 conta(n the results of Iaboreton,�and field-testing. Sectlon 1 shows the resul[s of <br /> full-sc31e testing with a Vortechs`� Model 2000 at Vortechnics' laboratory in Portland, Maine. <br /> Sectlen 2 includes long term rnonitoring results from several Vortechsm Systems installed on typical <br /> proJecfs. <br /> Laboratorv Testina -Vortechs°5tormwater Treatment Svstem Pertormance <br /> Vortechs�System Removal EHiciencies <br /> tor Selected Part(cic Gradallons <br /> 100% - -- --- - --- <br /> � 90% 1 - - — -._ <br /> � 80% 1 . - — - - <br /> �' 7u% <br /> c -- - -- ------ — - —--- � <br /> � 60% - ---- -- — -- <br /> '� 50% I - —� -- ---------- — -- - <br /> w40% � —�----- ---- . ._ ------ — -- <br /> 0 30% � . .- --- - — --- — <br /> E 20% <br /> � 10% I_ - -- <br /> -- --- ---- ---- <br /> 0% a. - ,_. . , - . .,-- ------- <br /> 0 20 40 60 80 100 <br /> Operating Ra[e (gpm/sf) <br /> +50 um �-Typical Gradation -F 150 um <br /> • See Tablp t <br /> Rev 4-29-04 (WSG) <br />