List of Figures

Letter from the Mayor

Letter from the Commissioner

Credits and Acknowledgements

Executive Summary

Factors Influencing Water
Quality in New York Harbor

Physical Influences on
Water Quality in 2003

Pathogenic Indicators

Biological Indicators

Water Clarity Indicators

List of Figures

List of Acronyms

List of Figures

Figure 2-1:	Map of NY Harbor with Historical and 2003 Sampling Sites
Figure 2-2:	Summer Means for Dissolved Oxygen (1970-present), Fecal Coliform (1973-present), Chlorophyll-a and Secchi Depth (1986-present) for Entire Harbor
Figure 2-3:	Fecal Coliform Trends for Four Harbor Regions: Summer Geometric Means (1973-2003)
Figure 2-4:	Dissolved Oxygen in Four Regions of New York Harbor: Surface and Bottom Summer Means (1970-2003)
Figure 3-1:	Map Illustrating Net Tidal and Freshwater Flows In New York Harbor
Figure 3-2:	Map of Water Pollution Control Plants in New York Harbor
Figure 4-1:	Dissolved Oxygen versus Salinity in Surface Waters in New York Harbor, 1970-2003 data
Figure 4-2:	Dissolved Oxygen versus Salinity in Bottom Waters of New York Harbor, 1970-2003 data
Figure 4-3:	Average Summer Surface Water Temperature for New York Harbor, 1970-2003
Figure 5-1:	Fecal Coliform Summer Geometric Means in Surface Waters in Inner Harbor and Upper East River/WLIS (1973-2003)
Figure 5-2:	Photo of Secondary Treatment Upgrade Construction at Newtown Creek WPCP
Figure 6-1:	NY Harbor DO Levels, Surface and Bottom Waters (1970-2003)
Figure 6-2:	Percentage of Bottom DO Samples Falling Below 5.0 and 3.0 mg/L, 1970-2003
Figure 6-3:	Surface and Bottom DO Summer Means and 2 Standard Errors for Upper East River/WLIS, 1970-2003
Figure 6-4:	2003 Bottom DO Monthly Means and Ten year Monthly Means +/- 2 Standard Errors (mg/L) in Upper East River/Western Long Island Sound
Figure 6-5:	Effect of Chlorophyll-a Levels on Water Discoloration
Figure 6-6:	Map of Summer Mean Chlorophyll-a Concentrations (in ug/L)in New York Harbor, 1986-2003
Figure 6-7:	Summer Mean Chlorophyll-a Concentrations in Jamaica Bay, 1986-2003
Figure 6-8:	2003 Summer Monthly Chlorophyll-a Levels in Bergen Basin (J7) in Jamaica Bay with Ten Year Monthly Averages and 2 Standard Errors
Figure 6-9:	NItrite/Nitrate Concentrations in New York Harbor in Summer 2003 Compared to Ten Year Monthly Means and Standard Errors
Figure 6-10:	Annual Ammonia Concentrations in New York Harbor, 1986-2003 (mg/L)
Figure 6-11:	Correlation between Nitrates/Nitrites and Chlorophyll-a in Jamaica Bay, 1986-2003 data (r2=0.3465, P<0.05)
Figure 7-1:	Jamaica Bay Secchi Depth, Summer Mean with 2 Standard Errors (1986-2003)
Figure 7-2:	Chlorophyll-a and Secchi Depth in NY Harbor, Correlation Between Annual Means (1986-2003) (r2= 00.5483, n< 0.001)
Figure 7-3:	Total Suspended Solids (TSS) for Surface and Bottom Waters in New York Harbor (1991-2003)

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