This was in the latest wai-care newsletter sent out to the school.
Did you check 
http://waipapatoetoestreamproject.blogspot.com  ?  With the help of a PD team, most of the litter was removed, and classes  got all their plants in before the holidays, supervised by the resident family  of kingfishers.  There is plenty more to clear and plant in coming years,  and the students and teachers are setting up systems to monitor the hoped-for  ecological changes.
We are still working on cleaning up the area and waiting for some of the planting to grow a little before posting them on the site.