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STATE WATER RESOURCES CONTROL BOARD - 19 - <br /> ORDER <br /> 19 - <br /> ORDER WQ 2014-0153-DWQ <br /> GENERAL WASTE DISCHARGE REQUIREMENTS <br /> FOR SMALL DOMESTIC WASTEWATER TREATMENT SYSTEMS <br /> Table 3: Summary of Wastewater System Setbacks <br /> Domestic Flowing Ephemeral Property Lake or <br /> Equipment or Activity Well Stream a Stream b Line Reservoir d <br /> Drainage <br /> Septic Tank Aerobic 150 ft. y <br /> Treatment Unit, 100 ft.° 50 ft.° 50 ft. 5 ft.° 200 ft.w <br /> Treatment System, <br /> or Collection Systeme 50 ft. <br /> ....................................................................................................................................................................................................................................................................................................................................... <br /> Leach Field f 100 ft.01C 100 ft.c 50 ft. 5 ft.c 200 ft.c <br /> ............................................................................................................................. 100 ft. <br /> ......................................................................................................................................................................................ft.c <br /> w <br /> Seepage Pit 150 ft.0,C150 ft.c 50 ft. 8 ft.c 00 ft.c <br /> LAND APPLICATION AREA REQUIREMENTS <br /> LAA (disinfected tertiary 50 ft.m 25 ft. 50 ft. 25 ft. 200 ft. <br /> recycled...wate.r)..g............................ <br /> ......................................................................................................................................................................................................................................... <br /> LAA (disinfected sec-2.2 100 ft." <br /> or sec-23 recycled 100 ft.r 50 ft. 50 ft. 50 ft.p 200 ft. <br /> water) <br /> ....................................................................................................................................................................................................................................................................................................................................... <br /> LAA (undisinfected 100 ft." <br /> secondary recycled 150 V 100 ft. 100 ft. 50 ft.p 200 ft. <br /> wate......r)...' <br /> .................... ..................................................................... ................................................................................................................................................................................................................................. <br /> Spray Irrigation No spray irrigation of any recycled water, other than <br /> (disinfected tertiary disinfected tertiary recycled water, shall take place within 100 <br /> recycled water) k feet of a residence or a place where public exposure could be <br /> similar to that of a park, playground, or school yard. <br /> WASTEWATER STORAGE AND/OR TREATMENT PONDS <br /> Impoundment <br /> (disinfected tertiary 100 ft., 100 ft. 100 ft. 50 ft. 200 ft. <br /> recycled...wate.r)..g....................................................................................................................................................................................................................................................................... <br /> Impoundment <br /> (disinfected sec-2.2 or 100 ft.r 100 ft. 100 ft. 50 ft. 200 ft. <br /> sec-23 recycled water) " <br /> ....................................................................................................................................................................................................................................................................................................................................... <br /> Impoundment <br /> (undisinfected 150 V 150 ft. 150 ft. 50 ft. 200 ft. <br /> secondary recycled <br /> water) ' <br /> LAA denotes Land Application Area. Sec denotes secondary. <br /> a A flowing stream shall be measured from the ordinary high water mark established by fluctuations of <br /> water elevation and indicated by characteristics such as shelving, changes in soil character, vegetation <br /> type, presence of litter or debris, or other appropriate means. <br /> b Ephemeral Stream Drainage denotes a surface water drainage feature that flows only after rain or snow- <br /> melt and does not have sufficient groundwater seepage (baseflow) to maintain a condition of flowing <br /> surface water. The drainage shall be measured from a line that defines the limit of the ordinary high <br /> water mark (described in "a" above). Irrigation canals are not considered ephemeral streams drainage <br /> September 23, 2014 <br />