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7 <br /> 1 Tony Whitaker said soil is the most important part of the on-site wastewater system. He <br /> 2 said suitable soil for these types of systems is in short supply in Orange County. He said parcels <br /> 3 may have a little bit of suitable soil for these systems, but in general, this reality limits <br /> 4 development in rural counties in this piedmont area of the state. He said this is a precious <br /> 5 resource that is limited. <br /> 6 Commissioner Fowler asked if the dispersal field could be put between trees. <br /> 7 Tony Whitaker said it's possible, but the dispersal field will last longer without trees. <br /> 8 Commissioner Portie-Ascott asked if the soil analysis and suitability would be clear when <br /> 9 a project comes before the Board. <br /> 10 Tony Whitaker said the county plays a part in determining if the soil is suitable, but there <br /> 11 are some nuances, and he will address those later in his presentation. <br /> 12 Vice-Chair Hamilton asked what else soils that are suitable for wastewater systems are <br /> 13 also good for. <br /> 14 Tony Whitaker said it could be suitable for farming, building roads, etc. <br /> 15 Commissioner McKee said there probably isn't a direct link to farming, because he has <br /> 16 some soil that is not good for wastewater systems, but it is one of the best farming fields he has. <br /> 17 Tony Whitaker said that may have something to do with the depth or a limiting condition <br /> 18 like rock that would make it not usable for wastewater systems but has upper layers that are <br /> 19 good for farming. <br /> 20 Commissioner McKee said another factor is the airspace between the soil particles. <br /> 21 <br /> 22 Slide #9 <br /> Usual Wastewater Constituents of Concern <br /> • Biological Oxygen Demand (BO❑-5, CBOT) <br /> • Total suspended Solids (TSS) <br /> • Various types and measures of Nitrogen <br /> compounds (Ammonia, Nitrite, Nitrate, TKN, TN) <br /> • Fecal Coliform (primarily as an indicator of other <br /> sickness-causing pathogens in the water) <br /> 23 <br /> 24 <br /> 25 <br /> 26 <br /> 27 <br /> 28 <br /> 29 <br /> 30 <br />