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NYCDEPCostAnalys isReport-0607 .pdf - New York-New Jersey ...

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300,000<br />

250,000<br />

TSS Load (lbs/day)<br />

200,000<br />

150,000<br />

100,000<br />

50,000<br />

0<br />

Projected TSS Loading<br />

Actual TSS Loading<br />

1989<br />

1991<br />

1993<br />

1995<br />

1997<br />

1999<br />

2001<br />

2003<br />

2005<br />

2007<br />

2009<br />

2011<br />

2013<br />

2015<br />

2017<br />

2019<br />

2021<br />

2023<br />

2025<br />

2027<br />

2029<br />

2031<br />

2033<br />

2035<br />

2037<br />

2039<br />

2041<br />

2043<br />

2045<br />

Figure 1-9: Comparison of Actual and Projected TSS Loads<br />

250,000<br />

200,000<br />

BOD Load (lbs/day)<br />

150,000<br />

100,000<br />

50,000<br />

Projected BOD Loading<br />

0<br />

Actual BOD Loading<br />

1989<br />

1991<br />

1993<br />

1995<br />

1997<br />

1999<br />

2001<br />

2003<br />

2005<br />

2007<br />

2009<br />

2011<br />

2013<br />

2015<br />

2017<br />

2019<br />

2021<br />

2023<br />

2025<br />

2027<br />

2029<br />

2031<br />

2033<br />

2035<br />

2037<br />

2039<br />

2041<br />

2043<br />

2045<br />

Figure 1-10: Comparison of Actual and Projected CBOD Loads<br />

Due to the disparity of projections and actual data, an increase of 20% for TSS and CBOD loads<br />

will be assumed. Further research is recommended to resolve the differences in the projected<br />

loads and existing plant data at the North River WPCP.<br />

The data for nitrogen are generally consistent with the BEPA projections (Figure 1-11.) and will<br />

be used for this evaluation. A summary of the flows and loads that will be used as a basis of<br />

design are shown in Table 1-15.

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