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Vorlechs Slorrnw�ter Trc�:[m�nl Syslem <br /> Villaae Marine Drainaae - Lake Gearae. NY <br /> New York State Department of Environmental Conservation, Division oF Water <br /> The New York State DEC used funds obtained (n a Section 319 grant to Initiate a study of the <br /> effec[iveness of the Vortechsm System to remove sediment and other pollutants transported by <br /> stormwater to l ake George, Lake George Village, New York. "Since the 1970s, when there was a <br /> rapid increase in the rate and coi�centration of development along the southwestern shores of Lake <br /> George, we have been concerned about the impact of stormwater discharges into the lake,"said <br /> Tracy West, co-author of the study. <br /> Testin Period Feb. 2000 to Dec. 2000 <br /> # of Storms Sam IE� 13 <br /> Mean InFluent Concentretion 801 m L <br /> Mean Effluent Concentratio� 105 m L <br /> Removal Efficienc 88% <br /> The study concluded that the Village and Town of Lake George should consider installing additionat <br /> Vortechsm Systems In areas where sedimentation and erosion have been Identified as non-point <br /> source pollution problems. <br /> Hardfna Townshio Rest Area - Mardina 7ownshiu. N] <br /> RTP Environmental Associates <br /> This third paRy evaluation was performed under a U.S. Environmental Protection Agency grent, <br /> administered by the New )ersey Department of Environmental Protection. A. Roger Greenway, <br /> principal of RTP Environmentai Associates, Inc., conducted the study in con�unc[lon wi[h Thoiiet <br /> Associates, which assisted witl� data analysis and helped develop best management practices <br /> (BMP) recommendations. <br /> The Vortechsm Model 4000 was sized to handle a 100-year s±orm from the 3-acre (1.21 ha) paved <br /> parking area at the Harding Resc Stop, located o(f the noKhbound lane of I-287 In Harding <br /> Township, New Jersey. <br /> Testin Perfod Ma 1999 to Nov. 2000 <br /> # of Storms Samoled 5 <br /> Mean InFluent Concentratlon TSS 493 m L <br /> Mean Effluent Concentration TSS 35 m L <br /> Removal Efficienc TSS 93% <br /> Mean InFluent Concentretion TPH 16 m L <br /> Mean EfFluent Concentration TPH 5 m L <br /> Removal Efficiency (TPH) 67% <br /> The study concluded that truck rest stops and si+nilar parking areas would benefit from Instailing <br /> stormwater treatment systems to mitigate the water quality impacts associated wlth stormwater <br /> runoff fro��! these si[es. <br /> Rc�a-z9-oa �ws�� <br />