{"data":{"id":"us-va/12vac5-610-820","jurisdiction":"us-va","citation":"12VAC5-610-820","heading":"Miscellaneous","body":"A. Multiple septic tanks in series.  The required volume for a septic tank may be satisfied by the utilization of two septic tanks in series; however, the first septic tank in series shall equal to 1/2 to 2/3 the required total volume.\n\nB. Physical and/or chemical systems.  Physical or chemical systems, or both, utilized as pretreatment for subsurface disposal of sewage shall meet the applicable criteria contained in 12VAC5-580-930 through 12VAC5-580-960 of the Sewerage Regulations.\n\nC. Water stop.  A water stop is a method for sealing the annular space around a conduit or pipe, or both, for the purpose of preventing infiltration or exfiltration, or both.  Conduits or pipes passing through the walls of a pretreatment unit shall be provided with a water stop.","path":["Title 12. Health","Agency 5. Department of Health","Chapter 610. Sewage Handling and Disposal Regulations","Part V. Design and Construction Criteria","Article 3. Pretreatment Systems"],"source_url":"https://law.lis.virginia.gov/admincode/title12/agency5/chapter610/section820/","current_through":"2026 Regular Session (effective July 1, 2026)","vintage":"","retrieved_at":"2026-09-14T04:50:45Z","sha256":"2afe9fb2bf1095797a3d768a5199c8119cb8f614ec2306ec8913222b6002e313","source_id":"us-va-vac","stale":false,"prev":"us-va/12vac5-610-817","next":"us-va/12vac5-610-850"},"notice":"GroundRules: Original legal text. Not legal advice."}