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

metals: beryllium, selenium, and thallium. The concentration for the remaining regulated
RCRA metal, silver, was found to be indeterminable. The concentration for di-n-butyl
phthalate, a SVOC, is also missing. No data exists for dioxin or 2,3,7,8 TCDD.
As shown in Appendix I, the treated sediment did not meet the standard for one SVOC,
benzo(a)pyrene. The concentration in the decontaminated sediment was found to be
3820 ppb, nearly five times the New Jersey Residential and Non-Residential Soil
Standard 5 of 600 ppb. Overall, the treated sediment contained SVOC concentrations
approximately 68% and 88% below the New Jersey Residential and Non-Residential Soil
Standards, respectively.
The metal concentrations in the treated sediment were an average of 32% and 83% below
the New Jersey Residential and Non-Residential Soil Standards, respectively. These
averages are calculated from the eight metals for which data existed. The data used to
compute these averages can be found in Appendix G.
The NUIEG process removed approximately 24% of the PCBs present in the untreated
sediment. The treated sediment contained 358 ppb of PCBs, which meets the New York
and New Jersey standards, which are listed in Appendix H.
End-Use Product
As mentioned in The Process section of this report, the treated sediment produced by the
NUIEG decontamination process can be used to create a variety of products. Which
material NUIEG actually chooses to manufacture depends on the production costs and
marketability of the potential product. Different ratios and amounts of ash, cement, and
other additives can be added to the treated sediment in order to create a wide range of
products, including a material similar to portland cement. Without the addition of these
chemicals, the treated sediment alone can be used as fill or capping material.
5 The New Jersey Residential and Non-residential Soil Standards are both 600 ppb for benzo(a)pyrene
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