We are switching to a new water monitoring data portal that will give you access to even more data for this site in an easy to navigate map-based format.

Visit our Environmental Data Portal.

alert Alerts

Rating Changes

The rating at Pomahaka at Glenken has been updated, effective 21/09/23.
Sites Impacted:

Water Monitoring and Alerts

Our new Environmental Data Portal offers you a much better experience while viewing the most up-to-date environmental data, including flood warnings, low flows and water quality data. This data is a live copy of the data held in the Council’s environmental monitoring database.

The portal will allow you to view all historic data available for a site, plus you can download quality assured data. The maps also provide better context and are easier to navigate. 

Visit our Environmental Data Portal.

Information displayed on this web site is provisional and has not been checked using the Council’s Quality Assurance procedures. The Otago Regional Council, Contact Energy, Trustpower, Environment Canterbury, Environment Southland and NIWA do not make any warranty, expressed or implied or assume legal liability or responsibility whatsoever for the accuracy or completeness of this information nor does it make any representation whatsoever that the information is fit for any particular purpose.

Select a monitoring site to view

Site Alerts

Monitoring sites with active alerts appear in the alert box. Site indicators flash RED if in flood or YELLOW when low flows are occurring.

These alerts are triggered by flood levels and river management flows, such as minimum flows set for each site. Most of these flows and levels are displayed on the site graphs.

Receive Twitter flood alerts on your phone or computer

Data Update Frequency

Most monitoring sites measuring river and rainfall information update hourly. Data downloaded from remote sites may vary from this.


Managing water availability during low flows

Otago has been experiencing drier than normal conditions recently, and this is expected to continue over summer.

If you see extreme low flows or fish in distress due to lack of water, please report this to our Pollution Hotline on 0800 800 033 or complete the online form.


Otago Water Plan

The Otago Water Plan includes a suite of water quality rules to ensure good quality water in Otago’s waterways. These rules control contaminants and sediment coming off rural properties into waterways from runoff, leaching, and drains (non-point sources). Landholders are responsible for choosing methods of managing contaminant discharge to waterways that ensure that their property complies with the rules.

Click here to find out more.

Land Air Water Aotearoa

LAWA displays water quality and trend information for more than 1100 freshwater sites throughout New Zealand. Visit the LAWA website now

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Online Maps & Data: