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5. Surface Water Runoff Control Measures <br /> Surface water control systems in place onsite consist of gravel berms to intercept sediment from <br /> surface water flow, collection ditches to route surface water, and a pond for Zone 1 surface water <br /> flows. These systems all drain to the natural draw onsite, shown on Figure 8. As-built <br /> calculations and diagrams can be found on the attached Map C-6. <br /> Natural <br /> Draw <br /> Collection <br /> Ditches Drainage <br /> Direction (typ.) <br /> Zone 1 <br /> Pond <br /> Figure 9—Surface Water Runoff Path <br /> Ralston TR 03 16 Greg Lmicki and Amciatm PIRA' <br />