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Exhibit 3: NC Sewage Flow Rate Calculation Rules <br /> Amended Eff.April 1, 1993;January 1, 1990. <br /> 15A NCAC 18A.1949 SEWAGE FLOW RATES FOR DESIGN UNITS <br /> (a) In determining the volume of sewage from dwelling units, the flow rate shall be 120 gallons per day per bedroom. <br /> The minimum volume of sewage from each dwelling unit shall be 240 gallons per day and each additional bedroom <br /> above two bedrooms shall increase the volume of sewage by 120 gallons per day. In determining the number of <br /> bedrooms in a dwelling unit, each bedroom and any other room or addition that can reasonably be expected to function <br /> as a bedroom shall be considered a bedroom for design purposes. When the occupancy of a dwelling unit exceeds two <br /> persons per bedroom,the volume of sewage shall be determined by the maximum occupancy at a rate of 60 gallons per <br /> person per day. <br /> (b) Table No. I shall be used to determine the minimum design daily flow of sewage required in calculating the design <br /> volume of sanitary sewage systems to serve selected types of establishments. The minimum design volume of sewage <br /> from any establishment shall be 100 gallons per day. Design of sewage treatment and disposal systems for <br /> establishments not identified in this Rule shall be determined using available flow data, water-using fixtures, occupancy <br /> or operation patterns,and other measured data. <br /> TABLE NO.I <br /> TYPE OF ESTABLISHMENT DAILY FLOW FOR DESIGN <br /> Airports 5 gal/passenger <br /> (Also R.R. stations,bus terminals--not <br /> including food service facilities) <br /> Barber Shops 50 gal/chair <br /> Bars,Cocktail Lounges(Not including <br /> food service) 20 gal/seat <br /> Beauty Shops(Style Shops) 125 gal/chair <br /> Bowling Lanes 50 gal/lane <br /> Businesses(other than those listed elsewhere in this table) 25 gal/employee <br /> Camps <br /> Construction or Work Camps 60 gal/person <br /> 40 gal/person <br /> (with chemical toilets) <br /> Summer Camps 60 gal/person <br /> Campgrounds--With Comfort Station <br /> (Without water and sewer hookups) 100 gal/campsite <br /> Travel Trailer/Recreational Vehicle Park <br /> (With water and sewer hookups) 120 gal/space <br /> Churches(Not including a Kitchen,Food Service <br /> Facility,Day Care or Camp) 3 gal/seat <br /> Churches(With a Kitchen but,not including a Food <br /> Service Facility,Day Care,or Camp) 5 gal/seat <br /> Country Clubs 20 gal/member <br /> Day Care Facilities 15 gal/person <br /> Factories(Exclusive of industrial waste) 25 gal/person/shift <br /> Add for showers 10 gal/person/shift <br /> Food Service Facilities <br /> Restaurants 40 gal/seat or <br /> 40 gal/15 ft2 of <br /> dining area,whichever is greater <br /> 24-hour Restaurant 75 gal/seat <br /> Food Stands <br /> (1) Per 100 square feet of food stand floor space 50 gal <br /> (2) Add per food employee 25 gal <br /> Other Food Service Facilities 5 gal/meal <br /> 99 <br /> 20 <br />