Internal Report 563
Brazier J & Humphrey C
Supervising Scientist Division
About the report
The surface water chemistry grab sampling component of the Ranger stream monitoring program will relocate from the reference site MCUS and statutory compliance site 009C to the continuous monitoring and in situ toxicity monitoring sites in Magela Creek at the commencement of the 2008/2009 wet season.
This new regime replaces that which has been in place since 2001, and will enhance the ability of the Supervising Scientist Division (SSD) to independently detect change while reducing replication of the compliance monitoring program carried out by Energy Resources Australia Ltd (ERA), and the check monitoring conducted by the Department of Regional Development, Primary Industry, Fisheries and Resources (DRDPIFR).
The key outcome of the new program will be closer integration of the grab sampling with continuous water quality monitoring and in situ toxicity monitoring.
Statistical comparison of data for key analytes collected from the historical water chemistry grab sampling sites and the proposed new sites (using creekside monitoring data) from 2002 to 2008 is presented in this report.