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1`, <br />The design flow is based upon the number of bedrooms applied for by the property owner or developer. The design flow for a bedre <br />120 gallons/day (gpd). (e.g. 4$0 GPD = 4 bedrooms) <br />The property owner or developer as required by 15A NCAC 18A .1900 - .1969 (The Laws and Rules for Sewage Treatment and Disf <br />Systems) provides proposed house locations. The pump requirement is a function of house location and proximity to the provisional <br />suitable soil azea. ' <br />The design flow, type system, and pump requirement are subject to change based upon the application and site plan or plat submitted <br />the. Construction Authorization for a Wastewater System. <br />The blocked areas on the accompanying plat are the limits of the provisionally suitable soils as evaluated by the Orange County Heal• <br />Department <br />It should be noted that all lots having a conventional drain field with pump are reviewed at a minimum of every five yeazs by the heal <br />depamnent as required by 15A NCAC 18A .1961 (Maintenance of Sewage Systems). <br />Conventional Systems aze placed in areas with 36 inches or more of provisionally suitable characteristics. <br />Shallow Trench Conventional Systems are placed in azeas with 30 inches or more of provisionally suitable characteristics. <br />Ultra Shallow Trench Conventional Systems are placed in azeas with 24 inches or mare of provisionally suitable characteristics and a <br />inch soil cap is placed over the trenches. <br />