Where should one monitoring port be placed in a mound system?

The placement of a monitoring port in a mound system is crucial for effectively assessing the performance of the system. Positioning the port in the infiltration bed down to the gravel-sand interface allows for accurate measurement of the fluid levels and the effectiveness of the distribution of effluent within the mound. This area is critical for monitoring because it provides valuable insights into the drainage patterns and potential clogging within the mound system.

By placing the monitoring port in this specific location, operators can gather data that helps in determining whether the effluent is percolating properly and whether the system is functioning as designed. Monitoring the gravel-sand interface helps detect any issues early, such as excessive moisture retention or soil saturation, which could indicate a malfunction in the system or the need for maintenance.

Other locations, such as at the surface of the mound or in the native soil, may not provide the necessary information regarding the performance and health of the infiltration bed, making the selected position in the bed the most effective choice for monitoring purposes.