I work with engineers and erosion control professionals in Virginia. Many have expressed concern with meeting the proposed numeric dewatering discharge turbidity limits. The expressed concern is that they have a numeric discharge limit to meet but have no tools or direction as to how to meet these discharge limits. I am a proponent of environmental conservation and believe limits are needed and necessary as sediment is a significant pollutant and should not be discharged. Guidance should be provided in the permit for those conducting dewatering projects in VA on how to meet low numeric discharge limits.