Home Infrastructure Environmental Sanitation air pass plans air pass plans Description Save Air pass plane in plan and cuts Format DWG File size 794.89 KB DOWNLOAD DWG share your appreciation Related Posts imhoff tank scheme Imhoff reactor, grate chamber; sand remover; sludge drying includes structure staggered bleachers Sewer waste storage Storm drainage plans in autocad Manhole for medians wastewater treatment doc Residual water treatment plant Sewer – speed bumps – gutters Storm drain sewers. drainage project Pumping chamber detail Storm drain concrete head 45 degree angle grid slow filter Septic tank and absorption pit more details Topographic plan of sewage system percolating liquid plant