Since July 2006, water quality has been monitored near the bottom of the catchment at the gauging station on Karnup Road. Flow has been recorded at Karnup Road since March 2005.
Peel Main Drain nutrient report 2015
Technical Report
Peel Main Drain flows in a southerly direction and passes through several pools or wetlands (swamps) before discharging to the Serpentine River at Kerulup Pool.