New York/ New Jersey Harbor: Alternative Methods for Ex ... - CLU-IN

The soil or fill product passed all of the metal and PCB standards and general guidelines
for dioxins and 2,3,7,8 TCDD.
The decontamination analysis for 2,3,7,8 TCDD and dioxins is in Appendix F. The
average removal efficiency for three dioxins: PeCDD, HxCDD, HpCDD, was about 51%.
The removal efficiency for TCDD was roughly 5%. The removal efficiency for 2,3,7,8
TCDD was approximately 61%. The concentration of 2,3,7,8 TCDD in the treated
sediment was 35.3 ppt, which is below the general standard of 1 ppb.
The decontaminated sediment passed all of the New Jersey Residential and Non-
Residential Standards for metals, as shown in Appendix G. On average, the metal
concentrations in the treated sediment were more than 89% below the New Jersey
Residential and Non-Residential Standard.
As shown in Appendix H, the PCB concentration of the treated sediment was found to be
203 ppb, which is below the New York Recommended Soil Standard, 1000 ppb, and the
New Jersey Residential and Non-Residential Soil Standards, 480 and 2000 ppb,
respectively.
The standards that the end-product did not pass were the New Jersey Residential Soil
Standards for benzo(a)anthracene, benzo(a)pyrene, benzo(b)fluoranthene,
benzo(k)fluoranthene, and indeno(1,2,3-cd)pyrene. The soil or fill also did not pass the
New Jersey Non-Residential Soil Standard for benzo(a)pyrene 2 . Data was missing for
three of the nine SVOCs considered in this study: N-Nitrosodiphenylamine, bis-2-
ethylhexylphthlate, and di-n-butyl phthalate. The remaining six SVOC concentrations of
the untreated sediment were an average of 42% above the New Jersey Residential Soil
Standards and 36% below the New Jersey Non-Residential Soil Standards. The
concentrations of these five out of these six SVOCs were below the detection limit in the
untreated sediment. These data can be found in Appendix I.
2 The New Jersey Non-Residential and Residential Soil Standards are the same.
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