The Waiwiri Stream is a small, lake-fed stream catchment, located south of Levin, in the Horowhenua District. The lower reaches of the Waiwiri Stream flow alongside the area, known as "the Pot" where trated wastewater from the Levin wastewater treatment plant is irrigated on to plantation Forestry.
Here are the main Environmental Monitoring Projects.
The Turitea Water Reservoirs and Water Treatment Plant provide the primary water source for Palmerston North City. Since 2011, Aquanet Consuting has been monitoring water quality and ecological indicators in the Water reservoirs and the Turitea STream upstream and dowsntream of teh dams. The monitoring and reporting has involved:
Aquanet Consulting undertakes biological monitoring (periphyton biomass and cover and macroinvertebrate sampling) and reporting in the headwaters of the Whangawehi Stream, within and downstream of the site of the future Mahia Beach wastewater treatment plant and irrigation area.
In March 2010, Aquanet conducted a caging study upstream and downstream of the discharge of treated effluent from the Silver Fern Farms Shannon fellmongery to the Manawatu River.