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2.0 AREA SUBJECT TO EFFLUENT LIMITATIONS <br />2.1 Description <br />All runoff from this site would eventually make its way to Monument Creek. All of this property <br />would, therefore, be tributary to an area that is subject to effluent limitations. <br />3.0 MAPS <br />A vicinity map showing general location and a site map indicating features of the site are included <br />at the end of this narrative as Exhibits 3.l and 3.2, respectively. <br />4.0 DESCRIPTION OF POTENTIAL POLLUTANT SOURCES/ <br />MATERIAL INVENTORY <br />4.1 Inventory of Sienificant Materials <br />Potential pollutants expected to be stored on-site include diesel fuel, gasoline, lubricating and <br />hydraulic fluids, and engine coolants. Fuel stored on-site includes one 12,000 gallon diesel tank <br />and one 1,000 gallon gasoline tan}:. The gasoline tank usually contains no more than 300 gallons <br />of fuel. <br />Drums are stored away from the active traffic areas to prevent accidents. These outdoor storage <br />areas have earth berms placed on the downhill side to help prevent accidentai discharges in the <br />event of a leak or spill. No waste fuel is stored at this site. All drums, stored outdoors containing <br />any potential Stormw•ater pollutant, are stacked on pallets to prevent contact with water or soils <br />which could cause corrosion and leaks. Chemicals stored indoors in the maintenance shop are <br />sited on a concrete floor. <br />Fuels and new vehicle maintenance fluids have been stored on site since the operation began. <br />Used vehicle maintenance fluids (waste oils, anti-freeze, spent hydraulic fluids) are stored only <br />long enough to make pick-up and disposal costs reasonable. <br />Stockpiles of aggregate products are centrally located west of the shop area. TopsoiUoverburden <br />stockpiles are located at various places around the site to make reclamation activities more <br />convenient. Sediment from these stockpiles and from areas that are not fully reclaimed would <br />also be considered as a potential pollutant. Stockpiles not actively used each day have small <br />diversion ditches cut around the base to route stormwater runoff away from the stockpiles. <br />4.2 List of Significant Sills <br />There are no known significant spills or leaks of toxic or hazardous pollutants at this site: <br />2 <br />