Gosford City Council Historical Water Quality Review & Analysis
Gosford City Council Historical Water Quality Review & Analysis
Gosford City Council Historical Water Quality Review & Analysis
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CONTENTS<br />
I<br />
CONTENTS<br />
Contents<br />
List of Figures<br />
List of Tables<br />
i<br />
iii<br />
iv<br />
1 INTRODUCTION 1-1<br />
1.1 Background 1-1<br />
1.2 <strong>Water</strong> <strong>Quality</strong> Data Sources 1-1<br />
1.2.1 Past Reports 1-1<br />
1.2.2 Electronic Information 1-2<br />
1.3 Overview of the ANZECC <strong>Water</strong> <strong>Quality</strong> Guidelines 1-3<br />
1.3.1 Protection of Aquatic Ecosystem 1-3<br />
1.3.2 Biological Indicators 1-5<br />
1.3.3 Physical and Chemical Stressors 1-5<br />
1.3.4 Toxicant in <strong>Water</strong> 1-6<br />
1.3.5 Toxicants in Sediment 1-7<br />
1.3.6 Application 1-7<br />
2 GWQ: A DATA MANAGEMENT AND ASSESSMENT TOOL 2-1<br />
2.1 Overview 2-1<br />
2.2 General Philosophy of Data Flow and Database Structure 2-2<br />
2.3 Outputs from GWQ 2-5<br />
2.3.1 <strong>Historical</strong> <strong>Analysis</strong> 2-5<br />
2.3.2 Yearly <strong>Analysis</strong> 2-6<br />
2.3.3 Quarterly <strong>Analysis</strong> 2-7<br />
3 RESULTS OF WATER QUALITY DATA ANALYSIS 3-1<br />
3.1 Contemporary <strong>Water</strong> <strong>Quality</strong> Results 3-1<br />
3.1.1 Physical Parameters 3-2<br />
3.1.1.1 Temperature 3-2<br />
3.1.1.2 pH 3-3<br />
3.1.1.3 Turbidity 3-4<br />
3.1.1.4 Secchi Depth 3-5<br />
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