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Effective April 28, 2015 Chapter Four Subsurface Sewage Treatment System Regulations <br />17.2 <br />Trenches and Seepage Beds....................................................................................................... <br />67 <br />17.3 <br />Mounds.......................................................................................................................................68 <br />17.4 <br />At -Grade Systems......................................................................................................................70 <br />SECTION18 <br />TYPE 11 SYSTEMS............................................................................................................................ <br />73 <br />18.1 <br />Type II Systems.........................................................................................................................73 <br />18.2 <br />Floodplain Areas........................................................................................................................ <br />73 <br />18.3 <br />Privies.........................................................................................................................................74 <br />18.4 <br />Holding Tanks............................................................................................................................ <br />74 <br />SECTION 19 <br />TYPE III SYSTEMS........................................................................................................................... <br />76 <br />19.1 <br />Type III Systems........................................................................................................................76 <br />19.2 <br />Flow Restriction Device.............................................................................................................76 <br />19.3 <br />Previously Developed Sites.......................................................................................................76 <br />19.4 <br />Type III Systems Allowed.........................................................................................................76 <br />19.5 <br />Graywater Systems....................................................................................................................76 <br />SECTION20 TYPE IV SYSTEMS........................................................................................................................... <br />78 <br />20.1 <br />General.......................................................................................................................................78 <br />20.2 <br />Previously Developed Sites.......................................................................................................78 <br />20.3 <br />Type IV Systems Allowed.........................................................................................................78 <br />20.4 <br />Soil Loading Rates.....................................................................................................................78 <br />SECTION21 TYPE V SYSTEMS............................................................................................................................ <br />79 <br />21.1 <br />Type V Systems.........................................................................................................................79 <br />21.2 <br />Previously Developed Sites.......................................................................................................79 <br />21.3 <br />Type V Systems Allowed..........................................................................................................79 <br />SECTION22 MAINTENANCE............................................................................................................................... <br />80 <br />22.1 <br />Management Plans Required..................................................................................................... <br />80 <br />22.2 <br />General.......................................................................................................................................80 <br />22.3 <br />Frequency of Assessment........................................................................................................... <br />80 <br />22.4 <br />Maintenance Permit and Reporting............................................................................................80 <br />22.5 <br />Removal of Material.................................................................................................................. <br />80 <br />22.6 <br />Pump Tank Maintenance...........................................................................................................81 <br />22.7 <br />Privies.........................................................................................................................................81 <br />22.8 <br />Additives....................................................................................................................................81 <br />22.9 <br />Septage....................................................................................................................................... <br />81 <br />22.10 <br />Land Spreading of Septage........................................................................................................ <br />81 <br />22.11 <br />Use of Soil Treatment Site.........................................................................................................81 <br />22.10 <br />System Remediation.................................................................................................................. <br />81 <br />SECTION 23 LAND APPLICATION OF SEPTAGE............................................................................................. <br />82 <br />7 Washington County Development Code <br />