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This study was able to develop a community based sewage treatment system composed of a water monitoring device, a real-time web-based platform, and a helophyte filtration system using waste plastics that only costs 1380 USD. To determine the most efficient helophyte filtration system, setups namely: Horizontal Subsurface Filter, Vertical Subsurface Filter, and Hybrid filter were evaluated on water effluent parameters namely: Biological Oxygen Demand, Dissolved Oxygen, Temperature, Nitrate, pH, Total Suspended Solids, and Phosphorous with water quality guidelines from the Philippine Water Quality Guidelines and General Effluent Standards of 2016. Results showed that the filtration systems’ removal efficiency varied on Nitrification, BOD and TSS. V-SSF filter had high Nitrate and BOD with removal efficiency of 90.61% and 97.55% respectively but poor TSS rate with 66.28% removal efficiency. H-SSF filter showed good BOD and TSS results with removal efficiency of 96.44% and 79.81% respectively, but showed poor Nitrate with 85.91% removal efficiency. Hybrid Filter showed high Nitrate levels with 93.36% removal efficiency. An Arduino with GSM-based transmission and sensors for turbidity, pH, DO, and temperature was used for water monitoring. The website used GSM and python to capture and parse data in a MySQL database via XAMPP server. PHP and google maps API and Charts.js. were used for data retrieval and projection. This study concludes that the developed system is an effective community based water treatment system. V-SSF filter showed high removal efficiencies and cost practicality than other Subsurface systems. Transmission from Arduino to website was also effective in data dissemination.