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Design the discharge from the sediment trap by using the guidance for discharge from tem- <br />porary sediment ponds in BMP C241: Sediment Pond (Temporary). <br />Maintenance Standards <br />. Sediment shall be removed from the trap when it reaches 1-foot in depth. <br />. Any damage to the trap embankments or slopes shall be repaired. <br />2019 Stormwater Management Manual for Western Washington <br />Volume 11 - Chapter 3 - Page 385 <br />