ONSITE WASTEWATER SYSTEM DESIGN

An onsite wastewater treatment system (OWTS) is a decentralized solution for treating and disposing of household wastewater in areas without access to municipal sewer systems.  The design process involves evaluating site conditions, digging test pits to gather soil samples, and selecting an appropriate treatment system method that ensures compliance with local regulations.

Components of the design include:

• Site Evaluation - Soil sampling to asses soil characteristics, groundwater levels, and property and site layout to determine system feasibility.
• System Selection - Choosing between conventional septic tanks, advanced treatment units, or alternative method based on site constraints and wastewater volume. 
• Hydraulic & Treatment Design - Calculating flow rates, retention times, and soil absorption capacity to ensure efficient treatment and dispersal.
• Regulatory Compliance - Preparing plans and securing permits from health and environmental authorities 

A well designed OWTS ensures safe wastewater treatment, protects groundwater resources, and promotes long term system performance with minimal environmental impact.