On 13 December 2020 a small team from Salt Ecology, working on behalf of Horizons Regional Council, headed upstream on the river to undertake a water quality survey. They weren’t checking E. Coli, like the weekly monitors, but were instead looking at things like sediment and nitrates.
Do we have any community members with relevant expertise who could summarise these findings in plain language for us?
This isn’t the first time they’ve done such monitoring. Here are two reports they’ve provided. They are highly technical as they were written for a specialist audience rather than the general public, so unless you have relevant training you might just want to skip to the Results sections.
In 2019 and 2020 findings suggested there’s plenty of room for improvement in our river:
Overall the results indicate that the estuary is continuing to express strong symptoms of eutrophication with large parts of the upper estuary currently adversely impacted by elevated catchment inputs of nutrients and, to a lesser degree, sediments.
Eutrophication is when the level of nutrients in the water is too high. That causes a ton of problems, affecting fish and other organisms.
The report recommends further monitoring, and also actions towards restoration.
Read the reports for yourself: