Testing assessments increased from just being assessed at headwaters to now being assessed throughout the path the water bodies travel all the way to the mouth. This provides information on how water bodies change as it flows through various locations.
6.5 million rows of data were assessed thanks to a more streamlined data processing system that was improved from the earliest 2004/2006 Integrated Report.
Temperature, dissolved oxygen, and E. Coli are the most common factors throughout the assessments as being the cause for water impairment.
Water impairment has increased from 33% in 2012 to a current 44%.
Thorough data collection for temperature is not attainable, so the Impairment of Fish and Aquatic Life report is considered unsupported and in fact is the most used unsupported finding.