1. Environmental Values, Water Quality Objectives,
Aquatic Ecosystem Health reporting

5. Example Site
no/minor impact moderate impact major/very
major
impact

6. Selected reference site locations are indicated by
numbers on the right-hand side of the risk
assessment diagrams

7. Environmental Flow
Objectives:
The deviation below this
EFO should be minimized as
there may be an increased
risk of unacceptable
environmental degradation.

10. Environmental Protection (Water) Policy 1997

11. HUMAN USE EVs
AQUATIC
ECOSYSTEM Stock watering
EV
What are Environmental
Values (EVs)?
Primary Recreation
EVs are the qualities of a water that
support:
(A) aquatic ecosystems and
(B) human uses/values
All waterways will possess the aquatic
Irrigation
ecosystem EV and in most cases,
other human uses/values will also
apply.
EVs are protected from the effects of
pollutants by achieving water quality Farm Supply
objectives
Industrial Use

12. What are Water Quality
Objectives (WQOs)?
Measures of water quality
indicators (physical, chemical, or
biological measures) that protect
the environmental values of the
water
The WQO is the most stringent
set of WQGs to support all
identified EVs

16. © 2009 SEQ Healthy Waterways Partnership

17. © 2009 SEQ Healthy Waterways Partnership

18. Ratings used to present averaged assessments in this report
Average difference from reference Interpretation
Rating condition
green In reference condition Good condition
yellow < 20 % Slightly disturbed condition
orange > 20% and < 50 % Moderately disturbed condition
red > 50 % Highly disturbed condition
grey No assessment available No assessment available