{"data":{"id":"us-va/12vac5-610-670","jurisdiction":"us-va","citation":"12VAC5-610-670","heading":"Sewage flows","body":"Subsurface soil absorption systems shall be designed on the basis of the sewage flows tabulated in Table 5.1.\n\nTable 5.1.\n\nSewage Flows.\n\nDischarge Facility\n\nDesign Unit\n\nFlow\n\n(gpd)\n\nBOD\n\n(#/day)\n\nS.S.\n\n(#/day)\n\nFlow\n\nDuration\n\n(Hour)\n\nDwelling1\n\nper person total\n\n75\n\n0.2\n\n0.2\n\n24\n\nFood preparation\n\n--\n\n15\n\n--\n\n--\n\n--\n\nToilet facilities\n\n--\n\n20\n\n--\n\n--\n\n--\n\nBathing facilities\n\n--\n\n20\n\n--\n\n--\n\n--\n\nHandwashing facilities\n\n--\n\n5\n\n--\n\n--\n\n--\n\nLaundering\n\n--\n\n15\n\n--\n\n--\n\n--\n\nSchools with shower and cafeteria\n\nper person\n\n16\n\n0.04\n\n0.04\n\n8\n\nSchools without showers and with or without cafeteria\n\nper person\n\n10\n\n0.025\n\n0.025\n\n8\n\nBoarding schools\n\nper person\n\n75\n\n0.2\n\n0.2\n\n16\n\nMotels at 65 gals/ person (rooms only)\n\nper person\n\n130\n\n0.26\n\n0.26\n\n24\n\nTrailer courts\n\nper person\n\n75\n\n0.2\n\n0.2\n\n24\n\nRestaurants\n\nper seat\n\n50\n\n0.2\n\n0.2\n\n16\n\nInterstate or through highway restaurants\n\nper seat\n\n100-180\n\n0.7\n\n0.7\n\n16\n\nInterstate rest areas\n\nper person\n\n5\n\n0.01\n\n0.01\n\n24\n\nService stations\n\nper vehicle served\n\n10\n\n0.01\n\n0.01\n\n16\n\nFactories \u0026 office buildings\n\nper person per 8-hr shift\n\n15-35\n\n0.03-0.07\n\n0.03-0.07\n\noperating period\n\nShopping centers\n\nper 1,000 ft. of ultimate floor space\n\n200-300\n\n0.1\n\n0.1\n\n12\n\nHospitals\n\nper bed\n\n300\n\n0.6\n\n0.6\n\n24\n\nNursing homes\n\nper bed\n\n200\n\n0.3\n\n0.3\n\n24\n\nHomes for the aged\n\nper bed\n\n100\n\n0.2\n\n0.2\n\n24\n\nDoctor's office in medical center\n\nper 1,000 sq. ft.\n\n500\n\n0.1\n\n0.1\n\n12\n\nLaundromats, 9 to 12# machines\n\nper machine\n\n500\n\n0.3\n\n0.03\n\n16\n\nCommunity colleges\n\nper student and faculty\n\n15\n\n0.03\n\n0.03\n\n12\n\nSwimming pools\n\nper swimmer\n\n10\n\n0.001\n\n0.001\n\n12\n\nTheaters, drive-in type\n\nper car\n\n5\n\n0.01\n\n0.01\n\n4\n\nTheaters, auditorium type\n\nper seat\n\n5\n\n0.01\n\n0.01\n\n12\n\nPicnic areas\n\nper person\n\n5\n\n0.01\n\n0.01\n\n12\n\nCamps, resort day and night with limited plumbing\n\nper campsite\n\n50\n\n0.05\n\n0.05\n\n24\n\nLuxury camps with flush toilets\n\nper campsite\n\n100\n\n0.1\n\n0.1\n\n24\n\nDump station\n\nper campsite\n\n50\n\n0.05\n\n0.05\n\n24\n\n1 For all dwelling units the design shall be   based on two persons per bedroom.","path":["Title 12. Health","Agency 5. Department of Health","Chapter 610. Sewage Handling and Disposal Regulations","Part V. Design and Construction Criteria","Article 1. General Requirements"],"source_url":"https://law.lis.virginia.gov/admincode/title12/agency5/chapter610/section670/","current_through":"2026 Regular Session (effective July 1, 2026)","vintage":"","retrieved_at":"2026-09-14T04:50:45Z","sha256":"df24b4f66d5413bf7609235f12c0594729f953d228e6bfd0418aee64390014c8","source_id":"us-va-vac","stale":false,"prev":"us-va/12vac5-610-660","next":"us-va/12vac5-610-680"},"notice":"GroundRules: Original legal text. Not legal advice."}