1500 1ST ST RAIL BARGE FACILITY 2016-01-01 MF Import

Vorlechs Slornit.:_�ler I �.�„�lrnenl SySlem _----�________��.�-- Sample Collection All inFluent sarnples are taken from a 6-inch (152 mm) gate valve located upstream of the Vortechs� System. A collection bin housing a 500 mL sample contalner is positioned beneath the valve. Five seconds before each sample is taken the valve is ruickly opened and closed to eliminate any interterence from particles that have seltled in [he low velocity region of the gate. This eliminates artificially high influent readings. The time that the ir.fluent sample was [aken is recorded and the corresponding effluen[ sample (s collected after a period of ti�ne equal to tlie detention [ime. EfFluent grab samples are collected at the discharge pipe, by sweeping the mou[h of a 500 mL bottle tlirough the exiting flnw stream. Samples are annotated and refrigerated until they can be analyzed. Samole Analvsis TSS samples are analyzed in the Vortechnics laboretory, following EPA method 160.2, a method for the measurement of total non-filterable solids. Volume measurements are accurate to 0.6 ml, using a 500 mL graduated cylinder and an Acculab V-1 analytical balance with a readability of 0.001 g is used to measure mass. Eield Testina - Vortechs° Svstem Field Monitorina Summarv Vortechnics has become a leader in the stermwater industry in large part because of the company's unwavering long-term commitme�t to research and development. In addition to performing their own field tests, Vortechnics has diligently pursued opportunities to work with third party organiza[ions to test their products. In fact, the Vortechs�4 System has been subjected to the most comprehensive third party tes!iny in [he industry. These Independent studies have allowed Vortechnics to corroborate [heir lab and field data to ensure that actual perFormance of the Vortechsm System matches their claims. Following are brief summaries of the feld tests completed to date. Please contact Vortechnics for the full reports. In addition, all reports are available for download on Vortechnics website at www.vortechnics.com. DeLorme Maooing Company - Yarmouth, ME Vortechnics, Inc. Prior to this premier(ieid test of the Vortechs� Sys[em, Vortechnics developed an extensive body of laboratory data to doc�men[ total suspended sollds (TSS) removal efficlency. Vortechnics perFormed this field study in order to compare the pertormance predicted using laboratory data to the periormance of a correctly sized System fn the field. The study site was the headquarters of DeLorme Mapping in Yarmouth, Maine. The buflding, driveway, parking lot and ancillary facillties were cons[ructed In 1996. A Vortechsm Model 11000 was instalied to treat runoff from the 300-space, 4-acre (1.62 ha) parking lot. Testin Period Ma 1999 to Dec. 1999 � of Srorms Sam led 20 Mean InFluent Concentration 328 mg/L Mean Effluen[ Cencentration 60 mg� Removal Efficlency _� 82°/a The main purpose of the DeLorme study was to verify that the sizing methodology developed from our Full-scale laboratory testing was valid and an accurate means of predicting field pertormance. The resW[s of the study confirmed our sizing methodoiogy. Rev 449-04 (WSG)