Technical reports
We have a range of reports available that have been prepared by technical specialists, such as hydrologists, ecologists, engineers and air quality scientists.
Use the links under the headings below to find these reports in our Document Library.
Water
Groundwater
- Region-wide
- Ashburton
- Hurunui Waiau
- Christchurch West Melton
- Orari Temuka Opihi Pareora
- Selwyn Waihora
- Waimakariri
- Lower Waitaki South Coastal Canterbury
- Upper Waitaki
- Surveys
Surface water
- Region-wide
- Banks Peninsula
- Christchurch-West Melton
- Hurunui-Waiau
- Orari Temuka Opihi Pareora
- Selwyn Waihora
- Upper Waitaki
- Waimakariri
- Coastal
- Healthy estuary and rivers of the city ( 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 )
- Low flows in the Waitohi River (PDF File, 1.02MB)
- Waihao - Wainono hydrological information (PDF File, 4.78MB)
- Seven Day Mean Annual Flow Mapping for the North and South Ashburton River Catchments (PDF File, 15.01MB)
Land
Airport noise contours
- Independent expert panel’s final report on Christchurch International Airport noise contours (PDF file, 1.66MB)
- Find out more about airport noise contours.