Inland Waters
Page 154
Pressure indicator:
Number of samples exceeding water quality ANZECC
thresholds for wetland sites.
Magazine Creek
Wetlands - Discussion of results
•
The heavy metals recorded including zinc, lead and copper were recorded
high above the ANZECC threshold on most occasions between August
2009 - June 2010. The trend line indicates that there has been an increase
in heavy metals since August 2009.
•
Electrical conductivity (EC) (estimates of total dissolved solids) recorded
lower than the ANZECC threshold of 3500 us/cm on most occasions
between August 2009 - March 2010. The trend line indicates that there
has been a steady decrease in electrical conductivity since August 2009.
•
Turbidity (NTU) recorded below ANZECC threshold of 50 NTU on most
occasions between August 2009 - June 2010. However, the trend line
indicates that there has been an increase in turbidity since August 2009.
•
Suspended solids (SS) fluctuates above and below the ANZECC 20 mg/L
threshold line between August 2009 - June 2010. The trend line indicates
that there has been an increase in suspended solids since August 2009.
